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Expression of PSA-RP2, an alternatively spliced variant from the PSA gene, is increased in prostate cancer tissues but the protein is not secreted from prostate cancer cells
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Astrid K. Whitbread
Veröffentlicht/Copyright:
24. Februar 2010
Abstract
PSA-RP2 is a variant transcript expressed from the PSA gene that is conserved in gorillas, chimpanzees and humans suggesting a particular relevance for this transcript in these primates. We demonstrated by qRT-PCR that PSA-RP2 is upregulated in prostate cancer compared with benign prostatic hyperplasia tissues. The PSA-RP2 protein was not detected in seminal fluid and was cytoplasmically localised but not secreted from LNCaP or transfected PC3 prostate cells, despite secretion from transfected Cos-7 and HEK293 kidney cell lines. PSA-RP2-transfected PC3 cells showed slightly decreased proliferation and increased migration towards PC3-conditioned medium that could suggest a functional role in prostate cancer.
Keywords: alternative splicing; biomarker; kallikrein-related peptidase; prostate-specific antigen (PSA)
Received: 2009-11-27
Accepted: 2010-1-18
Published Online: 2010-02-24
Published in Print: 2010-04-01
©2010 by Walter de Gruyter Berlin New York
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Artikel in diesem Heft
- Guest Editorial
- The 3rd International Symposium on Kallikreins and Kallikrein-Related Peptidases
- HIGHLIGHT: 3RD INTERNATIONAL SYMPOSIUM ON KALLIKREINS AND KALLIKREIN-RELATED PEPTIDASES
- Kallikrein-related peptidases: proteolysis and signaling in cancer, the new frontier
- Functional intersection of the kallikrein-related peptidases (KLKs) and thrombostasis axis
- Kallikrein-related peptidases: bridges between immune functions and extracellular matrix degradation
- Prostate-specific antigen: an overlooked candidate for the targeted treatment and selective imaging of prostate cancer
- Tissue kallikrein in cardiovascular, cerebrovascular and renal diseases and skin wound healing
- Natural and engineered kallikrein inhibitors: an emerging pharmacopoeia
- Klk8, a multifunctional protease in the brain and skin: analysis of knockout mice
- Functional proteomics of kallikrein-related peptidases in ovarian cancer ascites fluid
- Polyclonal antibodies against kallikrein-related peptidase 4 (KLK4): immunohistochemical assessment of KLK4 expression in healthy tissues and prostate cancer
- Immunohistochemical analysis of kallikrein-related peptidases in the normal kidney and renal tumors: potential clinical implications
- Dysregulation of kallikrein-related peptidases in renal cell carcinoma: potential targets of miRNAs
- Analysis of an engineered plasma kallikrein inhibitor and its effect on contact activation
- Increased blood pressure and water intake in transgenic mice expressing rat tonin in the brain
- A structural network associated with the kallikrein-kinin and renin-angiotensin systems
- Analyzing the protease web in skin: meprin metalloproteases are activated specifically by KLK4, 5 and 8 vice versa leading to processing of proKLK7 thereby triggering its activation
- Expression of PSA-RP2, an alternatively spliced variant from the PSA gene, is increased in prostate cancer tissues but the protein is not secreted from prostate cancer cells
- KLK5 gene expression is severely upregulated in androgen-independent prostate cancer cells after treatment with the chemotherapeutic agents docetaxel and mitoxantrone
- Identification of IGFBP-3 fragments generated by KLK2 and prevention of fragmentation by KLK2-inhibiting peptides
Schlagwörter für diesen Artikel
alternative splicing;
biomarker;
kallikrein-related peptidase;
prostate-specific antigen (PSA)
Artikel in diesem Heft
- Guest Editorial
- The 3rd International Symposium on Kallikreins and Kallikrein-Related Peptidases
- HIGHLIGHT: 3RD INTERNATIONAL SYMPOSIUM ON KALLIKREINS AND KALLIKREIN-RELATED PEPTIDASES
- Kallikrein-related peptidases: proteolysis and signaling in cancer, the new frontier
- Functional intersection of the kallikrein-related peptidases (KLKs) and thrombostasis axis
- Kallikrein-related peptidases: bridges between immune functions and extracellular matrix degradation
- Prostate-specific antigen: an overlooked candidate for the targeted treatment and selective imaging of prostate cancer
- Tissue kallikrein in cardiovascular, cerebrovascular and renal diseases and skin wound healing
- Natural and engineered kallikrein inhibitors: an emerging pharmacopoeia
- Klk8, a multifunctional protease in the brain and skin: analysis of knockout mice
- Functional proteomics of kallikrein-related peptidases in ovarian cancer ascites fluid
- Polyclonal antibodies against kallikrein-related peptidase 4 (KLK4): immunohistochemical assessment of KLK4 expression in healthy tissues and prostate cancer
- Immunohistochemical analysis of kallikrein-related peptidases in the normal kidney and renal tumors: potential clinical implications
- Dysregulation of kallikrein-related peptidases in renal cell carcinoma: potential targets of miRNAs
- Analysis of an engineered plasma kallikrein inhibitor and its effect on contact activation
- Increased blood pressure and water intake in transgenic mice expressing rat tonin in the brain
- A structural network associated with the kallikrein-kinin and renin-angiotensin systems
- Analyzing the protease web in skin: meprin metalloproteases are activated specifically by KLK4, 5 and 8 vice versa leading to processing of proKLK7 thereby triggering its activation
- Expression of PSA-RP2, an alternatively spliced variant from the PSA gene, is increased in prostate cancer tissues but the protein is not secreted from prostate cancer cells
- KLK5 gene expression is severely upregulated in androgen-independent prostate cancer cells after treatment with the chemotherapeutic agents docetaxel and mitoxantrone
- Identification of IGFBP-3 fragments generated by KLK2 and prevention of fragmentation by KLK2-inhibiting peptides
