Abstract
Aim
To discover the predictive indicators of the risk of interstitial lung disease (ILD) after treatment of malignant tumors from myositis-specific autoantibodies (MSA) and myositis-associated autoantibodies (MAA) and explore possible predictive value and significance.
Methods
A total of 73 patients hospitalized in the Shulan (Hangzhou) Hospital from January 2020 to March 2021 were screened retrospectively, they all completed the MSA and MAA, and the imaging was consistent with changes in ILD. We analyzed the characteristics of MSA and MAA in tumor patients and non-tumor patients, and the characteristics of MSA and MAA positive in patients with ILD after treatment.
Results
A total of 58 patients with ILD were diagnosed, 19 patients (32.76%) with malignant tumors, 16 patients with positive MSA or MAA (84.21%), of which 10 (50%) patients had anti-RO-52 antibodies. After treatment, 12 cases (46.15%) developed ILD and 10 cases (90.91%) had a positive spectrum of specific inflammatory diseases.
Conclusion
The MSA and MAA may have a predictive effect on people who are prone to ILD during the treatment of malignant tumors, and the anti-RO-52 antibody may be an important predictive antibody index.
Graphical abstract

1 Introduction
Malignant tumors have now become one of the main public health problems that seriously threaten the health of the Chinese population. According to the latest statistics in 2015, deaths from malignant tumors accounted for 23.91% of all deaths among residents. The mortality rate is second only to heart disease. The current main treatments for tumors are chemotherapy, radiotherapy, targeted therapy, and immunotherapy. It should not be overlooked that during the treatment process with immunosuppressive agents, interstitial lung disease (ILD) has been confirmed as a rare but potentially serious event. Especially for drugs targeting the PD-1/PD-L1 axis, there are even some fatal pneumonia cases [1,2]. At the same time, the occurrence or acute progression of ILD has also been observed in other treatment options for tumors.
ILD is based on diffuse lung parenchyma, alveolar inflammation, and interstitial fibrosis, with active dyspnea as the clinical manifestation. There are many causes of ILD, and currently known causes include environmental factors, pulmonary toxicity drugs, occupational exposure, radiation therapy, and systemic diseases (such as connective tissue diseases, etc.) [3,4]. With the continuous development of cancer treatment methods, tumor-related ILD has gradually become a clinical focus, especially the ILD induced during the treatment of cancer patients. There is an urgent need to further explore its pathogenesis and predictive biomarkers.
In clinical practice, serum myositis-specific autoantibodies (MSA) and myositis-associated autoantibodies (MAA) are widely recognized and used. Each antibody is associated with different clinical phenotypes and outcomes [5–8]. Especially in inflammatory diseases such as myositis, the clinical significance of MSA and MAA has been extensively studied. MSA and MAA are closely related to the immune profile of myositis and provide important clues for the diagnosis, prognosis, and treatment of the disease. In adolescent myositis patients with ILD, those who were positive for anti-Ro-52 antibodies typically experienced a chronic and persistent course, with fewer instances of a single episode. These patients had a longer treatment duration and were more prone to relapse [9]. Additionally, a study evaluating patients with anti-MDA5 antibody-positive, non-myopathic dermatomyositis complicated by pulmonary interstitial disease found that anti-RO-52 antibodies were significantly associated with rapidly progressive ILD and the development of skin ulcers. It was suggested that these patients may have a poor response to conventional immunosuppressive treatment, leading to increased mortality [10]. However, there is no clear report regarding the use of these specific antibody profiles to predict the occurrence of ILD in cancer patients, particularly acute ILD after cancer treatment. To explore the potential role of MSA and MAA in tumor-related ILD, we retrospectively collected data from all patients who underwent MSA or MAA testing (16 items) at the Department of Respiratory and Critical Care Medicine of Shulan (Hangzhou) Hospital between January 1, 2020 and March 1, 2021, and conducted a retrospective analysis. By observing the relationship between MSA or MAA and the occurrence of ILD in cancer patients, particularly the association with ILD after cancer treatment, this study aimed to reveal the clinical value of MSA and MAA as potential biomarkers and further explore their role in reducing the occurrence of ILD in cancer patients.
2 Materials and methods
2.1 Study design and participants
We conducted a retrospective analysis of all patient records from the Department of Respiratory and Critical Care Medicine of Shulan (Hangzhou) Hospital between January 1, 2020 and March 1, 2021. The inclusion criteria were as follows: (1) imaging findings consistent with ILD changes, including grid shadow, honeycomb sign, ground glass shadow with traction bronchiectasis, peripheral or bronchial consolidation ground glass shadow, distribution around lobules, central lobular nodules with unclear borders, and subpleural line shadows; (2) completion of comprehensive MSA and MAA testing (referred to as the myositis panel), including anti-JO-1 antibodies, anti-PL-7 antibodies, anti-PL-12 antibodies, anti-EJ antibodies, anti-OJ antibodies, anti-SRPα antibodies, anti-HMGCR antibodies, anti-cN-1A antibodies, anti-Mi-2 antibodies, anti-Mi-2α antibodies, anti-Mi-2β antibodies, anti-NXP-2 antibodies, anti-SAE antibodies, anti-TIF1-Y antibodies, anti-MDA5 antibodies, anti-Ku antibodies, anti-PM-Scl100 antibodies, anti-PM-Scl75 antibodies, anti-Ro-52 antibodies, and anti-U1-nRNP antibodies; and (3) patients aged over 18 years. The exclusion criteria were (1) patients with lung involvement due to drug or environmental exposure history, (2) pregnant or breastfeeding women, and (3) patients lacking relevant clinical data. A total of 773 patients were included in the final analysis.
2.2 Diagnostic criteria
Once all selected patients had changes in ILD found on chest imaging, based on the patient’s medical history, physical examination, laboratory tests, and high-resolution CT (HRCT) scans, the patients were divided into ILD and non-ILD. Then, based on imaging, ILD patients were divided into two categories: usual interstitial pneumonia (UIP) and non-UIP. All patient data and imaging were reviewed by clinical experts and imaging experts with experience in ILD in our hospital. Idiopathic interstitial pneumonia (IIP) diagnostic criteria referred to the classification opinions and diagnostic criteria of IIPs published by the American Thoracic Society and European Respiratory Society in 2013 [11].
2.3 Data collection
Data from all patients were collected through the hospital’s electronic medical record system, covering the period from January 1, 2020 to March 1, 2021. We collected basic information, including gender, age, history, time of onset (from the onset of symptoms to diagnosis), tumor type, and imaging typing; 22 items of autoantibodies, anti-myeloperoxidase antibodies (MPO), antiproteinase 3 antibody (PR3), anti-streptolysin O (ASO), anti-cyclic citrullinated peptide antibody (CCP), C-reactive protein (CRP), rheumatoid factor (RF), sialic sugar chain antigen KL-6 detection (KL-6), erythrocyte sedimentation rate (ESR), myositis spectrum, and other serologic tests; as well as imaging assessments, including chest X-ray, CT, and HRCT.
The rheumatic and autoimmune diseases addressed in this study include: dermatomyositis, characterized by skin damage and muscle weakness, with classification criteria based on recent research [12]; rheumatoid arthritis (RA) is a chronic, systemic autoimmune disease primarily affecting the joints and may also involve other organs, and relevant classification criteria for RA can be found in pertinent reports [13]; systemic sclerosis is defined by fibrosis of the skin and internal organs, with clearly established diagnostic criteria [14]; Sjögren’s syndrome primarily manifests as dry eyes and dry mouth, potentially accompanied by other systemic symptoms, with classification standards derived from the latest reports [15].
2.4 Detection method of idiopathic inflammatory myopathy spectrum antibody
Serum from all patients was sent to the Hangzhou European Union Medical Laboratory for testing, using the anti-myositis antibody profile 4 IgG detection kit (EUROLine western blot assay) and EUROBlotMaster II fully automatic immunoblotting and interpretation system for testing. Operation steps: After centrifugation, 15 μL of the test serum was diluted and mixed with 1.5 mL of sample buffer. The test strip, with the numbered side facing up, was placed into the incubation trough. Each trough was filled with 1.5 mL of sample buffer and incubated for 5 minutes. The buffer was then removed, and the diluted serum samples were added to the troughs and incubated on a shaker for 30 minutes. Next, 1.5 mL of wash buffer was used to wash the strips three times, each for 5 minutes. Then, 1.5 mL of alkaline phosphatase-labeled anti-human IgG was added and incubated on a shaker for 30 minutes, followed by another round of washing using wash buffer. Subsequently, 1.5 mL of substrate solution was added to each trough for color development for 10 minutes. The strips were then rinsed three times with distilled water, each for 1 minute. Finally, the test strips were placed on the interpretation template and allowed to air dry. The results were evaluated using EUROLineScan software.
2.5 Statistical methods
SPSS 26.0 software was used for statistical analysis. Normally distributed continuous data were expressed as mean ± standard deviation, and a t-test was used for comparison between groups. Non-normally distributed continuous data were expressed as median (range), and the Mann–Whitney U-test was used for comparison between groups. Categorical data are expressed as n (%), with group comparisons made using the Chi-square test.
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Ethics approval: This study is approved by the Ethics Committee of Shulan (Hangzhou) Hospital (Reference Number: KY2023051).
3 Results
3.1 General conditions of all selected patients
We analyzed 73 patients, including 35 males (47.95%) and 38 females (52.05%). Among them, 58 patients were diagnosed with ILD.
3.2 Analysis of the general conditions of patients diagnosed with ILD
Among the 58 patients diagnosed with ILD, 19 were identified as malignant tumor cases (32.76%) and 39 were classified as non-tumor cases (67.24%). The cohort consisted of 31 male patients and 27 female patients. Imaging examinations revealed 28 cases (48.28%) of non-UIP and 30 cases (51.72%) of UIP. There was no statistically significant difference in the mean age and gender of the patients in both groups (Table 1). However, the prevalence of rheumatic immune diseases was significantly higher in non-tumor patients (P < 0.05), specifically including dermatomyositis (five cases), RA (two cases), scleroderma (one case), and Sjögren’s syndrome (one case). The tumor group had significantly higher levels of CRP compared to the non-tumor group (57.4 vs 17.6, P < 0.05).
Baseline characteristics of the two groups of patients
Index characteristics of ILD | Tumor patients (N = 19) | Non-tumor patients (N = 39) | P |
---|---|---|---|
Basic situation | |||
Age | 63.05 (34–88) | 68.15 (48–92) | 0.129 |
Gender, male (n, %) | 12 (63.2) | 19 (48.7) | 0.309 |
Past history | |||
Rheumatic immune disease (n, %) | 0 (0) | 9 (23.1) | 0.023 |
Structural lung disease (n, %) | 1 (5.3) | 3 (7.7) | 0.737 |
Diabetes (n, %) | 5 (26.3) | 8 (20.5) | 0.662 |
Laboratory diagnosis | |||
KL-6 | 1125.2 (361–3309) | 1290.8 (232–4732) | 0.535 |
ESR | 52.7 (8–104) | 41.3 (7–121) | 0.211 |
CRP | 57.4 (2.2–182.8) | 17.6 (0.5–99.8) | 0.001 |
MPO | 6.7 (0.1–64.2) | 17.2 (0.1–201.8) | 0.403 |
PR3 | 20.2 (0.5–185.7) | 10.2 (0.1–92.9) | 0.379 |
CCP | 4.4 (0.5–52.4) | 8.2 (0.5–250) | 0.717 |
ASO | 48.8 (4.7–130.2) | 40.5 (6.2–121) | 0.437 |
RF | 21 (3.2–76.8) | 18.4 (2.7–194.9) | 0.771 |
22 autoantibodies | |||
Antinuclear antibody (n, %) | 6/18 (33.3) | 31/37 (83.8) | 0.0001 |
Antineutrophil perinucleus antibody (n, %) | 1/18 (5.6) | 8/37 (21.6) | 0.166 |
Anti-SSA antibody (n, %) | 0/18 (0) | 5/37 (13.5) | 0.121 |
Anti-mitochondrial antibody type 2 antibody IgG (n, %) | 1/18 (5.6) | 1/37 (2.7) | 0.56 |
Anti-ScL-70 antibody (n, %) | 0/18 (0) | 2/37 (5.4) | 0.343 |
MSA and MAA | |||
Anti-JO-1 antibody IgG (n, %) | 2/19 (10.5) | 2/39 (5.1) | 0.472 |
Anti-MDA5 antibody IgG (n, %) | 1/19 (5.26) | 0/39 (0) | 0.159 |
Anti-RO-52 antibody (n, %) | 9/19 (47.4) | 11/39 (28.2) | 0.129 |
Anti-Mi-2α antibody IgG (n, %) | 2/19 (10.5) | 0/39 (0) | 0.042 |
Anti-PL-7 antibody IgG (n, %) | 1/19 (5.26) | 7/39 (17.9) | 0.184 |
Anti-NXP2 antibody IgG (n, %) | 1/19 (5.26) | 0/39 (0) | 0.159 |
Anti-EJ antibody IgG (n, %) | 1/19 (5.26) | 2/39 (5.1) | 0.983 |
Anti-Mi-2β antibody IgG (n, %) | 1/19 (5.26) | 2/39 (5.1) | 0.983 |
Anti-SAE1 antibody IgG (n, %) | 1/19 (5.26) | 1/39 (2.56) | 0.618 |
Anti-PM-Scl75 antibody IgG (n, %) | 1/19 (5.26) | 0/39 (0) | 0.159 |
Anti-TIF1γ antibody IgG (n, %) | 1/19 (5.26) | 1/39 (2.56) | 0.618 |
Anti-PL-12 antibody IgG (n, %) | 0/19 (0) | 2/39 (5.1) | 0.317 |
Anti-PM-Scl100 antibody IgG (n, %) | 0/19 (5.26) | 3/39 (7.69) | 0.215 |
Anti-SRP antibody IgG (n, %) | 0/19 (0) | 3/39 (7.69) | 0.215 |
Anti-Ku antibody IgG (n, %) | 0/19 (0) | 1/39 (2.56) | 0.484 |
Radiology | |||
UIP (n, %) | 8/19 (42.1) | 22/39 (56.4) | 0.315 |
Non-UIP (n, %) | 11/19 (57.9) | 17/39 (43.6) | 0.315 |
We compared and analyzed the myositis spectrum in both groups of patients. Among them, anti-Mi-2α antibody IgG (2 vs 0, P < 0.05) was present only in cancer patients; however, due to the small sample size, this finding was not considered statistically significant. In other myositis spectrums, we observed the highest incidence of anti-RO-52 antibodies, totaling 20 cases. Among non-tumor and tumor patients, there were 11 (28.2%) and 9 (47.4%) cases, respectively. The results showed that anti-RO-52 antibodies were present in a higher percentage of cancer patients.
3.3 Situation of patients with tumors complicated by imaging changes in lung interstitial pneumonia
3.3.1 General characteristics of patients with tumors and ILD
To determine whether the occurrence of ILD in tumor patients is associated with a specific myositis spectrum, we re-analyzed the tumor patients, with results shown in Table 2. Among the 27 tumor patients, 19 had ILD and 8 had non-ILD. In the ILD group, there were 12 male and 7 female patients, with an age range of 63.1 (34–88) years. Six cases had UIP and 13 had non-UIP. Among the 27 tumor patients, lung cancer was the most common (twelve cases), followed by breast cancer (six cases) and colorectal cancer (three cases). ILD occurred in 15 of the tumor patients after treatment (53.37%), with 3 cases following radiotherapy, 4 cases each after surgery and immunotherapy, and 1 case each after targeted therapy, endocrine therapy, targeted combined chemotherapy, and radiotherapy combined chemotherapy. Except for gender, there were no statistically significant differences in the basic characteristics between the two groups (P > 0.05).
Baseline characteristics of tumor patients
Characteristic | Interstitial pneumonia (n = 19) | Non-interstitial pneumonia (n = 8) | P |
---|---|---|---|
Gender | 0.033 | ||
Male | 12 (63.16) | 1 (12.50) | |
Female | 7 (36.84) | 7 (87.50) | |
Age | 63.1 (34–88) | 64.63 (47–82) | 0.775 |
Tumor type | 0.483 | ||
Lung cancer | 9 (47.37) | 3 (37.50) | |
Breast cancer | 5 (26.32) | 1 (12.50) | |
Colorectal cancer | 1 (5.26) | 2 (25.00) | |
Others | 4 (21.05) | 2 (25.00) | |
Stage | 0.078 | ||
I–II | 2 (10.53) | 4 (50.00) | |
III–IV | 10 (52.63) | 3 (37.50) | |
Unknown | 7 (36.84) | 1 (12.50) | |
Treatment history before onset | 0.152 | ||
None | 4 (21.05) | 1 (12.50) | |
Surgery | 4 (21.05) | 3 (37.50) | |
Chemotherapy | 0 | 2 (25.00) | |
Radiotherapy | 3 (15.79) | 0 | |
Targeted therapy | 1 (5.26) | 0 | |
Immunotherapy | 4 (21.05) | 1 (12.50) | |
Endocrine therapy | 1 (5.26) | 0 | |
Radiotherapy + chemotherapy | 1 (5.26) | 0 | |
Targeted + chemotherapy | 1 (5.26) | 0 | |
Immunotherapy + radiotherapy | 0 | 1 (12.50) | |
Type of ILD | — | ||
UIP | 6/19 (31.58) | — | |
Non-UIP | 13/19 (68.42) | — |
Others include esophageal cancer, pharyngeal cancer, cholangiocarcinoma, bladder cancer, and kidney cancer.
When categorized by tumor type, the results indicated a relative higher incidence of ILD in breast cancer patients (83.33%), all of whom presented with the non-UIP type. Additionally, a higher proportion of ILD was noted in stage III–IV lung cancer patients, suggesting a potential correlation between disease progression and pulmonary complications (Table 3).
Status of interstitial pneumonia in different tumor patients
Characteristic | Lung cancer (n = 12) | Breast cancer (n = 6) | Colorectal cancer (n = 3) | Others (n = 6) | P |
---|---|---|---|---|---|
Gender | 0.014 | ||||
Male | 8 (66.67) | — | 1 (33.33) | 4 (66.67) | |
Female | 4 (33.33) | 6 (100.00) | 2 (66.67) | 2 (33.33) | |
Age | 64.8 (34–88) | 57.2 (47–70) | 62.7 (47–75) | 65.5 (57–82) | 0.572 |
Stage | 0.088 | ||||
I–II | 3 (25.00) | 1 (16.67) | 1 (33.33) | 1 (16.67) | |
III–IV | 5 (41.67) | 5 (83.33) | 2 (66.67) | 1 (16.67) | |
Unknown | 4 (33.33) | 0 | 0 | 4 (66.67) | |
Treatment history before onset | 0.190 | ||||
None | 4 (33.33) | 0 | 0 | 1 (16.67) | |
Surgery | 4 (33.33) | 0 | 1 (33.33) | 2 (33.33) | |
Chemotherapy | 0 | 1 (16.67) | 1 (33.33) | 0 | |
Radiotherapy | 2 (16.67) | 0 | 0 | 1 (16.67) | |
Targeted therapy | 0 | 1 (16.67) | 0 | 0 | |
Immunotherapy | 2 (16.67) | 2 (40.00) | 0 | 1 (16.67) | |
Endocrine therapy | 0 | 1 (16.67) | 0 | 0 | |
Radiotherapy + chemotherapy | 0 | 1 (16.67) | 0 | 0 | |
Targeted + chemotherapy | 0 | 0 | 1 (33.33) | 0 | |
Immunotherapy + radiotherapy | 0 | 0 | 0 | 1 (16.67) | |
Is ILD | 0.483 | ||||
Yes | 9 (75.00) | 5 (83.33) | 1 (33.33) | 4 (66.67) | |
No | 3 (25.00) | 1 (16.67) | 2 (66.67) | 2 (33.33) | |
Type of ILD | 0.122 | ||||
UIP | 4/9 (44.44) | 0/5 | 0/1 | 2/4 (50.00) | |
Non-UIP | 5/9 (55.56) | 5/5 (100.00) | 1/1 (100.00) | 2/4 (50.00) |
Others include esophageal cancer, pharyngeal cancer, cholangiocarcinoma, bladder cancer, and kidney cancer.
3.3.2 Analysis of laboratory indices in patients with tumors complicated by interstitial pneumonia
The average value for patients with malignant tumors complicated by interstitial pneumonia was significantly higher than that for patients with malignant tumors without interstitial pneumonia (1,125 U/mL vs 415 U/mL, P < 0.05). However, the ESR between the two groups (42.7 vs 52.7, P > 0.05) was not statistically significant (Table 4). All patients underwent tests for 22 types of serum autoantibodies. ANCA titer ≥ 1:100 was considered positive. In the group with malignant tumors and interstitial pneumonia, the positive rate of ANCA was 31.58% (six cases). In the group of malignant tumors without ILD, the positive rate of ANCA was 50% (four cases). There was no statistically significant difference in the ANCA positive rates between the two groups (P > 0.05).
Laboratory diagnosis and 22 autoantibodies of the two groups
Index characteristics of ILD | Tumor with interstitial pneumonia patient group (N = 19) | Tumor with non-interstitial pneumonia group (N = 8) | P |
---|---|---|---|
Laboratory diagnosis | |||
KL-6 | 1,125 (361–3,309) | 415 (197–480) | 0.042 |
MPO | 6.7 (0.1–64.2) | 1.1 (0.1–4.2) | 0.578 |
PR3 | 20.2 (0.5–185.7) | 6.8 (3.5–14.6) | 0.642 |
CCP | 4.6 (0.5–42.6) | 0.7 (0.5–1.1) | 0.497 |
CRP | 60.7 (2.2–182) | 33.5 (1.7–102) | 0.369 |
ESR | 52.7 (8–104) | 42.7 (8–87) | 0.411 |
RF | 22 (3.2–76.8) | 14.7 (8.6–38.7) | 0.515 |
ASO | 4,844 (4.7–130.2) | 28.1 (12.3–45.4) | 0.292 |
22 autoantibodies | |||
ANCA | 6 | 4 | 0.345 |
Antineutrophil perinucleus antibody | 1 | 0 | 0.533 |
Antineutrophil cytoplasmic antibody | 0 | 1 | 0.121 |
Ribosomal P protein antibody | 0 | 1 | 0.121 |
Anti-mitochondrial antibody type 2 antibody IgG | 1 | 0 | 0.533 |
Anti-ScL-70 antibody | 0 | 1 | 0.121 |
MAS and MAA | |||
Anti-JO-1 antibody IgG | 2 | 0 | 0.392 |
Anti-MDA5 antibody IgG | 1 | 0 | 0.555 |
Anti-RO-52 antibody | 9 | 0 | 0.024 |
Anti-Mi-2α antibody IgG | 2 | 0 | 0.392 |
Anti-PL-7 antibody IgG | 1 | 0 | 0.555 |
Anti-NXP2 antibody IgG | 1 | 0 | 0.555 |
Anti-EJ antibody IgG | 1 | 0 | |
Anti-Mi-2β antibody IgG | 1 | 0 | 0.392 |
Anti-SAE1 antibody IgG | 1 | 0 | 0.555 |
Anti-PM-Scl75 antibody IgG | 1 | 0 | 0.555 |
Anti-TIF1γ antibody IgG | 1 | 0 | 0.555 |
Anti-PL-12 antibody IgG | 0 | 0 | |
Anti-PM-Scl100 antibody IgG | 0 | 0 | |
Anti-Ku antibody IgG | 0 | 0 | |
Anti-EJ antibody IgG | 0 | 0 | |
Anti-PM-Scl100 antibody IgG | 0 | 0 | |
Anti-SRP antibody IgG | 1 | 0 | 0.555 |
3.3.3 Predictive value of 16 items in the spectrum of idiopathic inflammatory myopathy in patients with tumors and interstitial inflammation
We tested the myositis spectrum for all enrolled patients. Of the 19 enrolled patients with tumors and interstitial pneumonia, 16 exhibited positive antibody profiles (84.21%) and 3 cases showed no positive antibody profiles (15.79%). Among these, nine patients tested positive for anti-RO-52 antibody; two cases each were positive for anti-JO-1 antibody IgG and anti-Mi-2α antibody IgG; and one case each was positive for anti-Mi-2β antibody IgG, anti-MDA5 antibody IgG, anti-PL-7 antibody IgG, anti-NXP2 antibody IgG, anti-EJ antibody IgG, anti-PM-Scl75 antibody IgG, and anti-TIF1γ antibody IgG; other antibodies (such as anti-ANA, anti-Sm, anti-dsDNA, anti-RNP, anti-Scl-70, and anti-ACA antibody IgG) were not detected. Notably, anti-RO-52 positivity was most frequently observed in patients with tumors and interstitial pneumonia (47.37%), and the positive rate among patients with interstitial pneumonia following treatment reached 73.73% (Table 4).
In addition, we observed that 15 of the 19 patients with tumors and interstitial pneumonia received tumor-related treatments, of which 13 cases (86.67%) were positive for the spectrum of specific inflammatory diseases. Four tumor patients did not receive tumor-related treatment for various reasons and three cases (75%) showed a positive myositis spectrum. Among patients with tumors without interstitial pneumonia, all eight patients underwent cancer treatment, and none exhibited positivity for a specific inflammatory disease spectrum.
4 Discussion
In this study, we found that compared with tumor patients who did not develop interstitial pneumonia, the positive rate of myositis spectrum in tumor patients who developed ILD after treatment was significantly higher. In addition, patients with positive myositis spectrum had a significantly shorter time for interstitial pneumonia after tumor treatment.
At present and in the future, to reduce the adverse reactions of tumor patients after treatment, everyone has gradually paid attention to it. We reviewed previous literature studies and found that there have been related reports on the relationship between tumors and ILD, especially between lung cancer and ILD, considering that the two have common risk factors, such as smoking or exposure to chemicals [16,17]. The pathophysiology of ILD is similar to the development process of cancer, including epithelial cell abnormalities, bioenergetics from metaplasia to cancerous cells, soluble media release, genetic changes, and telomere wear that lead to aging and abnormal development pathways [18].
The current treatment methods for tumors are mostly surgery, radiotherapy and chemotherapy, immune and targeted therapy, and the occurrence of interstitial pneumonia or the acute progress of the original interstitial pneumonia can be observed in these treatment methods [19,20], there are also non-A case report of ILD after lung cancer immunotherapy and radiotherapy [19], Kobayashi et al. [21] retrospectively analyzed ILD patients receiving locally advanced non-small cell lung cancer (LA-NSCLC) radiotherapy and chemotherapy. Among 37 patients, 17 patients (46%) had acute exacerbations of ILD greater than or equal to grade 3 within 1 year after radiotherapy. The incidence of acute exacerbations of ILD in non-UIP patients was lower than that in UIP patients. There are also reports of severe pulmonary toxicity and even death for immunotherapy, especially drugs targeting the PD-1/PD-L1 axis [1,2,20]. The diagnosis of immune-related interstitial pneumonia (ICI-ILD) is not straightforward. Clinicians should remain highly skeptical if new respiratory symptoms appear while receiving ICI. As we all know, most of these ILD cases occur in the first few months of treatment (median time to onset is 2.3 months) [22,23]. In a meta-analysis, the incidence of ILD in NSCLC was significantly higher, providing evidence for this hypothesis [24]. Targeted therapy, such as ErbB receptor tyrosine kinase inhibitor (EGFR-TKI), although the incidence of ILD caused by EGFR-TKI is not high, once it occurs, it can seriously threaten the life of patients [25]. There are also related reports and studies on chemotherapy; for instance, bleomycin can cause pulmonary fibrosis [26].
The spectrum of specific inflammatory diseases includes serum MSA and serum MAA, which are the diagnostic markers of many systemic autoimmune rheumatic diseases. More and more related articles have been published and confirmed that it has predictive significance for the severity and progression of the disease and tumors in idiopathic inflammatory myopathy-related ILD [27]. Many studies have stated that idiopathic pulmonary fibrosis (IPF) and lung cancer have common risk factors, such as smoking or exposure to chemicals [16,17]. The positive rate of myositis spectrum in patients with qualitative pneumonia accounted for 84.21%, and the positive rate of myositis spectrum in patients after tumor treatment reached 90.91%. Therefore, we believe the spectrum of specific inflammatory diseases is important for ILD after tumor treatment. Occurrence has certain predictive significance.
Acute interstitial pneumonia (AIP) is a rapid progressive ILD whose pathological features are extensive pulmonary septal edema and type I and type II lung cell desquamation. Now, more and more pieces of literature focus on the acute exacerbation of ILD other than IPF [28].
In this article, we observed that anti-RO-52 antibody-positive patients were common in patients with tumors with interstitial pneumonia. The positive rate of patients with tumors with interstitial pneumonia accounted for 47.37%. For the antibody myositis spectrum in patients after tumor treatment, the positive rate reached 72.73%, and we compared patients with interstitial pneumonia anti-RO-52 antibody positive after tumor treatment and patients with untreated interstitial pneumonia, compared with the average lung time from symptom onset to diagnosis. Based on the above observations, we hypothesize that anti-RO-52 antibodies have a certain predictive value in patients with AIP after tumor treatment, but our clinical data are limited, and more data are needed to verify later.
KL-6 is a mucin-like molecule expressed in type II lung cells and respiratory bronchiolar epithelial cells in normal lungs [29]. KL-6 levels reflect the condition of parenchymal cells in lung tissue surrounding tissue damage and can serve as a serum biomarker for the diagnosis and monitoring of ILD. In this article, we observed that KL-6 in patients with interstitial pneumonia was significantly higher than that in patients with non-interstitial pneumonia. A study by Kohnet and others considers that in the context of interstitial pneumonia, the elevation of KL-6 in the patient’s serum is caused by damaged or regenerated epithelial cells in the lower respiratory tract. Similar results have also been reported in lung cancer patients who developed radiation pneumonitis [29]. Therefore, we can monitor the KL-6 value to predict the occurrence of radiation pneumonitis in patients after tumor treatment, especially after radiotherapy.
However, there are certain limitations in this study. First, monitoring KL-6 levels may provide some indication of ILD development, but due to our small sample size, statistical errors may exist. Second, although we preliminarily observed that CRP levels may be related to cancer prognosis, different types of cancer are associated with varying degrees of inflammatory response. However, since this study is a retrospective analysis with a limited sample size, we cannot draw universally applicable conclusions. Finally, due to the retrospective design of this study, detailed clinical features of some patients (such as muscle enzyme levels, skin changes, etc.) were not adequately collected, so we cannot determine whether they meet the classification criteria for immune-mediated myopathy. This missing data limits our comprehensive assessment of the patient’s condition. Future large-scale, prospective studies are needed to verify the potential of KL-6 as an early biomarker for ILD and further explore the relationship between CRP levels and cancer prognosis. We also recommend conducting long-term follow-up studies to assess the predictive role of anti-Ro-52 antibody positivity in cancer treatment-related AIP. Additionally, more clinical data, particularly muscle enzyme levels and skin changes, should be collected to more accurately evaluate whether cancer patients meet the diagnostic criteria for immune-mediated myopathy, thus providing more comprehensive guidance for clinical treatment.
In conclusion, the mechanism of ILD combined with interstitial pneumonia in cancer treatment is still unclear, but we speculate that it may involve the disruption of pulmonary interstitial T cells, triggering an immune response. We believe that specific inflammatory disease profiles may have a predictive role in cancer patients prone to interstitial pneumonia, with anti-RO-52 antibody positivity potentially associated with an increased risk of AIP after cancer treatment. This finding may provide a reference for patient care during cancer treatment.
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Funding information: This research received no specific grant from any funding agency in the public, commercial, or not for profit sectors.
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Author contributions: Z.Y.L. conceived the study, participated in its design and interpretation, and helped to draft the manuscript. L.Y. and Y.Z. participated in the design and interpretation of the data and drafting/revising the manuscript. S.L.Y., X.F., and Q.P.X. performed the statistical analysis and revised the manuscript critically. All the authors read and approved the final manuscript.
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Conflict of interest: The authors state no conflict of interest.
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Data availability statement: The data and materials in the current study are available from the corresponding author on reasonable request.
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This work is licensed under the Creative Commons Attribution 4.0 International License.
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- A comparative analysis of the impact of repeated administration of flavan 3-ol on brown, subcutaneous, and visceral adipose tissue
- Identifying early screening factors for depression in middle-aged and older adults: A cohort study
- Perform tumor-specific survival analysis for Merkel cell carcinoma patients undergoing surgical resection based on the SEER database by constructing a nomogram chart
- Unveiling the role of CXCL10 in pancreatic cancer progression: A novel prognostic indicator
- High-dose preoperative intraperitoneal erythropoietin and intravenous methylprednisolone in acute traumatic spinal cord injuries following decompression surgeries
- RAB39B: A novel biomarker for acute myeloid leukemia identified via multi-omics and functional validation
- Impact of peripheral conditioning on reperfusion injury following primary percutaneous coronary intervention in diabetic and non-diabetic STEMI patients
- Clinical efficacy of azacitidine in the treatment of middle- and high-risk myelodysplastic syndrome in middle-aged and elderly patients: A retrospective study
- The effect of ambulatory blood pressure load on mitral regurgitation in continuous ambulatory peritoneal dialysis patients
- Expression and clinical significance of ITGA3 in breast cancer
- Single-nucleus RNA sequencing reveals ARHGAP28 expression of podocytes as a biomarker in human diabetic nephropathy
- rSIG combined with NLR in the prognostic assessment of patients with multiple injuries
- Toxic metals and metalloids in collagen supplements of fish and jellyfish origin: Risk assessment for daily intake
- Exploring causal relationship between 41 inflammatory cytokines and marginal zone lymphoma: A bidirectional Mendelian randomization study
- Gender beliefs and legitimization of dating violence in adolescents
- Effect of serum IL-6, CRP, and MMP-9 levels on the efficacy of modified preperitoneal Kugel repair in patients with inguinal hernia
- Effect of smoking and smoking cessation on hematological parameters in polycythemic patients
- Pathogen surveillance and risk factors for pulmonary infection in patients with lung cancer: A retrospective single-center study
- Necroptosis of hippocampal neurons in paclitaxel chemotherapy-induced cognitive impairment mediates microglial activation via TLR4/MyD88 signaling pathway
- Celastrol suppresses neovascularization in rat aortic vascular endothelial cells stimulated by inflammatory tenocytes via modulating the NLRP3 pathway
- Cord-lamina angle and foraminal diameter as key predictors of C5 palsy after anterior cervical decompression and fusion surgery
- GATA1: A key biomarker for predicting the prognosis of patients with diffuse large B-cell lymphoma
- Influencing factors of false lumen thrombosis in type B aortic dissection: A single-center retrospective study
- MZB1 regulates the immune microenvironment and inhibits ovarian cancer cell migration
- Integrating experimental and network pharmacology to explore the pharmacological mechanisms of Dioscin against glioblastoma
- Trends in research on preterm birth in twin pregnancy based on bibliometrics
- Four-week IgE/baseline IgE ratio combined with tryptase predicts clinical outcome in omalizumab-treated children with moderate-to-severe asthma
- Single-cell transcriptomic analysis identifies a stress response Schwann cell subtype
- Acute pancreatitis risk in the diagnosis and management of inflammatory bowel disease: A critical focus
- Effect of subclinical esketamine on NLRP3 and cognitive dysfunction in elderly ischemic stroke patients
- Interleukin-37 mediates the anti-oral tumor activity in oral cancer through STAT3
- CA199 and CEA expression levels, and minimally invasive postoperative prognosis analysis in esophageal squamous carcinoma patients
- Efficacy of a novel drainage catheter in the treatment of CSF leak after posterior spine surgery: A retrospective cohort study
- Comprehensive biomedicine assessment of Apteranthes tuberculata extracts: Phytochemical analysis and multifaceted pharmacological evaluation in animal models
- Relation of time in range to severity of coronary artery disease in patients with type 2 diabetes: A cross-sectional study
- Dopamine attenuates ethanol-induced neuronal apoptosis by stimulating electrical activity in the developing rat retina
- Correlation between albumin levels during the third trimester and the risk of postpartum levator ani muscle rupture
- Factors associated with maternal attention and distraction during breastfeeding and childcare: A cross-sectional study in the west of Iran
- Mechanisms of hesperetin in treating metabolic dysfunction-associated steatosis liver disease via network pharmacology and in vitro experiments
- The law on oncological oblivion in the Italian and European context: How to best uphold the cancer patients’ rights to privacy and self-determination?
- The prognostic value of the neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, and prognostic nutritional index for survival in patients with colorectal cancer
- Factors affecting the measurements of peripheral oxygen saturation values in healthy young adults
- Comparison and correlations between findings of hysteroscopy and vaginal color Doppler ultrasonography for detection of uterine abnormalities in patients with recurrent implantation failure
- The effects of different types of RAGT on balance function in stroke patients with low levels of independent walking in a convalescent rehabilitation hospital
- Causal relationship between asthma and ankylosing spondylitis: A bidirectional two-sample univariable and multivariable Mendelian randomization study
- Correlations of health literacy with individuals’ understanding and use of medications in Southern Taiwan
- Correlation of serum calprotectin with outcome of acute cerebral infarction
- Comparison of computed tomography and guided bronchoscopy in the diagnosis of pulmonary nodules: A systematic review and meta-analysis
- Curdione protects vascular endothelial cells and atherosclerosis via the regulation of DNMT1-mediated ERBB4 promoter methylation
- The identification of novel missense variant in ChAT gene in a patient with gestational diabetes denotes plausible genetic association
- Molecular genotyping of multi-system rare blood types in foreign blood donors based on DNA sequencing and its clinical significance
- Exploring the role of succinyl carnitine in the association between CD39⁺ CD4⁺ T cell and ulcerative colitis: A Mendelian randomization study
- Dexmedetomidine suppresses microglial activation in postoperative cognitive dysfunction via the mmu-miRNA-125/TRAF6 signaling axis
- Analysis of serum metabolomics in patients with different types of chronic heart failure
- Diagnostic value of hematological parameters in the early diagnosis of acute cholecystitis
- Pachymaran alleviates fat accumulation, hepatocyte degeneration, and injury in mice with nonalcoholic fatty liver disease
- Decrease in CD4 and CD8 lymphocytes are predictors of severe clinical picture and unfavorable outcome of the disease in patients with COVID-19
- METTL3 blocked the progression of diabetic retinopathy through m6A-modified SOX2
- The predictive significance of anti-RO-52 antibody in patients with interstitial pneumonia after treatment of malignant tumors
- Exploring cerebrospinal fluid metabolites, cognitive function, and brain atrophy: Insights from Mendelian randomization
- Development and validation of potential molecular subtypes and signatures of ocular sarcoidosis based on autophagy-related gene analysis
- Widespread venous thrombosis: Unveiling a complex case of Behçet’s disease with a literature perspective
- Uterine fibroid embolization: An analysis of clinical outcomes and impact on patients’ quality of life
- Discovery of lipid metabolism-related diagnostic biomarkers and construction of diagnostic model in steroid-induced osteonecrosis of femoral head
- Serum-derived exomiR-188-3p is a promising novel biomarker for early-stage ovarian cancer
- Enhancing chronic back pain management: A comparative study of ultrasound–MRI fusion guidance for paravertebral nerve block
- Peptide CCAT1-70aa promotes hepatocellular carcinoma proliferation and invasion via the MAPK/ERK pathway
- Electroacupuncture-induced reduction of myocardial ischemia–reperfusion injury via FTO-dependent m6A methylation modulation
- Hemorrhoids and cardiovascular disease: A bidirectional Mendelian randomization study
- Cell-free adipose extract inhibits hypertrophic scar formation through collagen remodeling and antiangiogenesis
- HALP score in Demodex blepharitis: A case–control study
- Assessment of SOX2 performance as a marker for circulating cancer stem-like cells (CCSCs) identification in advanced breast cancer patients using CytoTrack system
- Risk and prognosis for brain metastasis in primary metastatic cervical cancer patients: A population-based study
- Comparison of the two intestinal anastomosis methods in pediatric patients
- Factors influencing hematological toxicity and adverse effects of perioperative hyperthermic intraperitoneal vs intraperitoneal chemotherapy in gastrointestinal cancer
- Endotoxin tolerance inhibits NLRP3 inflammasome activation in macrophages of septic mice by restoring autophagic flux through TRIM26
- Lateral transperitoneal laparoscopic adrenalectomy: A single-centre experience of 21 procedures
- Petunidin attenuates lipopolysaccharide-induced retinal microglia inflammatory response in diabetic retinopathy by targeting OGT/NF-κB/LCN2 axis
- Procalcitonin and C-reactive protein as biomarkers for diagnosing and assessing the severity of acute cholecystitis
- Factors determining the number of sessions in successful extracorporeal shock wave lithotripsy patients
- Development of a nomogram for predicting cancer-specific survival in patients with renal pelvic cancer following surgery
- Inhibition of ATG7 promotes orthodontic tooth movement by regulating the RANKL/OPG ratio under compression force
- A machine learning-based prognostic model integrating mRNA stemness index, hypoxia, and glycolysis‑related biomarkers for colorectal cancer
- Glutathione attenuates sepsis-associated encephalopathy via dual modulation of NF-κB and PKA/CREB pathways
- FAHD1 prevents neuronal ferroptosis by modulating R-loop and the cGAS–STING pathway
- Association of placenta weight and morphology with term low birth weight: A case–control study
- Review Articles
- The effects of enhanced external counter-pulsation on post-acute sequelae of COVID-19: A narrative review
- Diabetes-related cognitive impairment: Mechanisms, symptoms, and treatments
- Microscopic changes and gross morphology of placenta in women affected by gestational diabetes mellitus in dietary treatment: A systematic review
- Review of mechanisms and frontier applications in IL-17A-induced hypertension
- Research progress on the correlation between islet amyloid peptides and type 2 diabetes mellitus
- The safety and efficacy of BCG combined with mitomycin C compared with BCG monotherapy in patients with non-muscle-invasive bladder cancer: A systematic review and meta-analysis
- The application of augmented reality in robotic general surgery: A mini-review
- The effect of Greek mountain tea extract and wheat germ extract on peripheral blood flow and eicosanoid metabolism in mammals
- Neurogasobiology of migraine: Carbon monoxide, hydrogen sulfide, and nitric oxide as emerging pathophysiological trinacrium relevant to nociception regulation
- Plant polyphenols, terpenes, and terpenoids in oral health
- Laboratory medicine between technological innovation, rights safeguarding, and patient safety: A bioethical perspective
- End-of-life in cancer patients: Medicolegal implications and ethical challenges in Europe
- The maternal factors during pregnancy for intrauterine growth retardation: An umbrella review
- Intra-abdominal hypertension/abdominal compartment syndrome of pediatric patients in critical care settings
- PI3K/Akt pathway and neuroinflammation in sepsis-associated encephalopathy
- Screening of Group B Streptococcus in pregnancy: A systematic review for the laboratory detection
- Giant borderline ovarian tumours – review of the literature
- Leveraging artificial intelligence for collaborative care planning: Innovations and impacts in shared decision-making – A systematic review
- Cholera epidemiology analysis through the experience of the 1973 Naples epidemic
- Risk factors of frailty/sarcopenia in community older adults: Meta-analysis
- Supplement strategies for infertility in overweight women: Evidence and legal insights
- Scurvy, a not obsolete disorder: Clinical report in eight young children and literature review
- Case Reports
- Delayed graft function after renal transplantation
- Semaglutide treatment for type 2 diabetes in a patient with chronic myeloid leukemia: A case report and review of the literature
- Diverse electrophysiological demyelinating features in a late-onset glycogen storage disease type IIIa case
- Giant right atrial hemangioma presenting with ascites: A case report
- Laser excision of a large granular cell tumor of the vocal cord with subglottic extension: A case report
- EsoFLIP-assisted dilation for dysphagia in systemic sclerosis: Highlighting the role of multimodal esophageal evaluation
- Rapid Communication
- Biological properties of valve materials using RGD and EC
- Letter to the Editor
- Role of enhanced external counterpulsation in long COVID
- Expression of Concern
- Expression of concern “A ceRNA network mediated by LINC00475 in papillary thyroid carcinoma”
- Expression of concern “Notoginsenoside R1 alleviates spinal cord injury through the miR-301a/KLF7 axis to activate Wnt/β-catenin pathway”
- Expression of concern “circ_0020123 promotes cell proliferation and migration in lung adenocarcinoma via PDZD8”
- Corrigendum
- Corrigendum to “Empagliflozin improves aortic injury in obese mice by regulating fatty acid metabolism”
- Corrigendum to “Comparing the therapeutic efficacy of endoscopic minimally invasive surgery and traditional surgery for early-stage breast cancer: A meta-analysis”
- Corrigendum to “The progress of autoimmune hepatitis research and future challenges”
- Retraction
- Retraction of “miR-654-5p promotes gastric cancer progression via the GPRIN1/NF-κB pathway”
- Special Issue Advancements in oncology: bridging clinical and experimental research - Part II
- Unveiling novel biomarkers for platinum chemoresistance in ovarian cancer
- Lathyrol affects the expression of AR and PSA and inhibits the malignant behavior of RCC cells
- The era of increasing cancer survivorship: Trends in fertility preservation, medico-legal implications, and ethical challenges
- Bone scintigraphy and positron emission tomography in the early diagnosis of MRONJ
- Meta-analysis of clinical efficacy and safety of immunotherapy combined with chemotherapy in non-small cell lung cancer
- Special Issue Computational Intelligence Methodologies Meets Recurrent Cancers - Part IV
- Exploration of mRNA-modifying METTL3 oncogene as momentous prognostic biomarker responsible for colorectal cancer development
- Special Issue The evolving saga of RNAs from bench to bedside - Part III
- Interaction and verification of ferroptosis-related RNAs Rela and Stat3 in promoting sepsis-associated acute kidney injury
- The mRNA MOXD1: Link to oxidative stress and prognostic significance in gastric cancer
- Special Issue Exploring the biological mechanism of human diseases based on MultiOmics Technology - Part II
- Dynamic changes in lactate-related genes in microglia and their role in immune cell interactions after ischemic stroke
- A prognostic model correlated with fatty acid metabolism in Ewing’s sarcoma based on bioinformatics analysis
- Special Issue Diabetes
- Nutritional risk assessment and nutritional support in children with congenital diabetes during surgery
- Correlation of the differential expressions of RANK, RANKL, and OPG with obesity in the elderly population in Xinjiang
- A discussion on the application of fluorescence micro-optical sectioning tomography in the research of cognitive dysfunction in diabetes
- A review of brain research on T2DM-related cognitive dysfunction
- Special Issue Biomarker Discovery and Precision Medicine
- CircASH1L-mediated tumor progression in triple-negative breast cancer: PI3K/AKT pathway mechanisms