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Decreased mRNA expression of CCL5 [RANTES] in Alzheimer's disease blood samples

  • Maartje I. Kester EMAIL logo , Wiesje M. van der Flier , Allerdien Visser , Marinus A. Blankenstein , Philip Scheltens and Cees B. Oudejans
Published/Copyright: September 23, 2011
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Clinical Chemistry and Laboratory Medicine
From the journal Clinical Chemistry and Laboratory Medicine Volume 50 Issue 1

Abstract

Background: A recent study reported that an 18-analyte multiplexed plasma panel of signaling proteins differentiated Alzheimer's disease (AD) from controls. This study measured mRNA expression for nine of these promising bio-markers in 23 AD patients and 23 age- and sex-matched controls.

Methods: Total RNA was isolated from PaxGene RNA tubes. Relative mRNA expression levels of CCL5 [RANTES], CSF1, ICAM1, IGFBP6, IL1A, IL3, IL8, PDGFB and TNF were determined by Q-RT-PCR, with GAPDH as housekeeping gene.

Results: A panel of five markers (CCL5, CSF1, ICAM1, IL8, TNF) with detectable expression levels in all individuals differed between AD patients and controls (p interaction <0.10). Especially, the relative expression level of CCL5 was lower in AD patients than in controls (p<0.005). Across groups, levels of both CCL5 and TNF were correlated to CSF levels of τ (r=0.39, r=0.32), pτ-181 (r=0.38, r=0.33), and MMSE (r=–0.31, r=–0.33, all p<0.05).

Conclusions: The measured panel, and especially CCL5, could aid in the differentiation of AD from controls.

Keywords: Alzheimer's disease; blood; inflammation; mRNA
Corresponding author: Maartje I. Kester, Alzheimer Center, Department of Neurology, VU University Medical Center Amsterdam, PO Box 7057, 1007 MB Amsterdam, The Netherlands Phone: +31 20 4440183, Fax: +31 20 4440715
Received: 2011-5-3
Accepted: 2011-9-5
Published Online: 2011-09-23
Published in Print: 2012-01-01

©2011 by Walter de Gruyter Berlin Boston

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https://doi.org/10.1515/cclm.2011.731
Keywords for this article
Alzheimer's disease; blood; inflammation; mRNA

Articles in the same Issue

  1. Editorial
  2. Targeted therapy for HER-2: personalized medicine for her, too
  3. Review
  4. Circulating levels of HER-2/neu oncoprotein in breast cancer
  5. Mini Review
  6. The human epidermal growth factor receptor 2 (HER2)
  7. Opinion Paper
  8. Proposed criteria for sorting examined properties in clinical laboratory reports
  9. Guidelines and Recommendations
  10. Properties and units in the clinical laboratory sciences, Part XXIII. The NPU terminology, principles and implementation –a user’s guide (Technical Report 2011) (IFCC–IUPAC)
  11. Genetics and Molecular Diagnostics
  12. Establishing high resolution melting analysis: method validation and evaluation for c-RET proto-oncogene mutation screening
  13. Decreased mRNA expression of CCL5 [RANTES] in Alzheimer's disease blood samples
  14. General Clinical Chemistry and Laboratory Medicine
  15. A risk-analysis approach to the evaluation of analytical quality
  16. C-statistics versus logistic regression for assessing the performance of qualitative diagnostic tests
  17. Detection and quantification of M-proteinemia: comparison of various methods for serum protein electrophoresis
  18. External quality assessment of point-of-care International Normalized Ratio (INR) testing in Europe
  19. Comparison of two point-of-care testing (POCT) devices for fetal lactate during labor
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  22. The old and new tests for celiac disease: which is the best test combination to diagnose celiac disease in pediatric patients?
  23. Improving diagnosis of adult-type hypolactasia in patients with abdominal complaints
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  25. The diagnostic performance of allergen-molecules in comparison to allergen-extracts
  26. Analytical performances of cystatin C turbidimetric assay: which impact on accuracy of glomerular filtration rate estimation in renal transplantation?
  27. Evaluation of Aution Max AX-4030 and 9UB Uriflet, 10PA Aution Sticks urine dipsticks in the automated urine test strip analysis
  28. Reference Values and Biological Variations
  29. Diurnal variability of total calcium during normal sleep and after an acute shift of sleep
  30. Infections Diseases
  31. Comparison of two immunoassays for determining hepatitis B virus serum markers
  32. Cardiovascular Diseases
  33. Ultra-sensitive troponin I levels to exclude acute myocardial infarction from myocardial injury
  34. Diabetes
  35. Extracellular matrix-associated (GAGs, CTGF), angiogenic (VEGF) and inflammatory factors (MCP-1, CD40, IFN-γ) in type 1 diabetes mellitus nephropathy
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