30 March 2009
Angiotensin receptors in hormone-independent prostate cancer cell line DU145: Presence of two variants of angiotensin type 1 receptorMałgorzata SidorkiewiczA, Elżbieta Rebas, Marta Szymajda, Hanna Lawnicka, Marek Pawlikowski, Agnieszka Lachowicz
Med Sci Monit 2009; 15(4): BR106-110 :: ID: 869609
Background: Recently, the involvement of the renin-angiotensin system in the proliferation of prostate cancer has been suggested. There is increasing evidence that angiotensin II receptor type 1 (AT1) is expressed in a variety of cancer cells and tissues and may have a role in tumor growth, angiogenesis, and invasive activity of malignant lesions in vivo. The implications of data referring to an angiotensin receptor in hormone-independent human prostate cancer DU145 cells are unclear. Angiotensin II has been shown to inhibit the proliferation of DU145 cell lines. However, it is known that AT1 stimulates cell proliferation and that angiotensin II receptor type 2 (AT2) induces apoptosis and inhibits cell proliferation.
Material/Methods: The aim of our study was to investigate, by means of immunohistochemical and reverse transcriptase polymerase chain reaction assays, the type of angiotensin II receptor that is present in DU145 cells.
Results: In DU145-derived complementary deoxyribonucleic acid (cDNA), a polymerase chain reaction assay revealed 2 AT1-specific PCR products (93 bp and 126 bp). DU145-derived cDNA did not reveal AT2 expression at a level sufficient for detection by PCR. In cultured cells, immunohistochemical testing revealed a positive reaction in cultures immunostained with anti-AT1 antibody but not in those immunostained with AT2 antibody.
Conclusions: The inhibitory effect of angiotensin II on the proliferation of DU145 cells is exerted via AT1. It is possible that presence of 2 variants of AT1 in that cancer cell line is essential to produce the biological effects of angiotensin
Keywords: Angiotensin II, DU-145, human prostate cancer, Base Sequence, DNA Primers, DNA, Complementary, Prostatic Neoplasms - pathology, Receptor, Angiotensin, Type 1 - metabolism, Reverse Transcriptase Polymerase Chain Reaction
04 June 2022 : EditorialEditorial: Acute Hepatitis of Unknown Origin in Children. Is Autoimmunity at Play?
Med Sci Monit 2022; 28:e937371
27 June 2022 : Clinical ResearchShoulder Injury Related to Vaccine Administration (SIRVA) in 16 Patients Following COVID-19 Vaccination Who...
Med Sci Monit In Press; DOI: 10.12659/MSM.937430
04 June 2022 : Clinical ResearchScreening for SARS-CoV-2 Infection in Students at the Medical University of Warsaw, Poland Between November...
Med Sci Monit 2022; 28:e936962
30 May 2022 : Clinical ResearchEffects of Wearing Face Masks on Exercise Capacity and Ventilatory Anaerobic Threshold in Healthy Subjects ...
Med Sci Monit 2022; 28:e936069
30 Jun 2022 : Clinical ResearchAntioxidant System and Ions Concentrations After Femoral Neck and Resurfacing Hip Arthroplasty
Med Sci Monit In Press; DOI: 10.12659/MSM.936335
28 Jun 2022 : Meta-AnalysisUrodynamics in Early Diagnosis of Diabetic Bladder Dysfunction in Women: A Systematic Review and Meta-Analysis
Med Sci Monit In Press; DOI: 10.12659/MSM.937166
28 Jun 2022 : Clinical ResearchSerum Calprotectin – a NET Product – as a Biomarker of Disease Activity in Patients with Systemic Lupus Ery...
Med Sci Monit In Press; DOI: 10.12659/MSM.936534
Most Viewed Current Articles
30 Dec 2021 : Clinical ResearchRetrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...
Med Sci Monit 2021; 27:e935379
08 Mar 2022 : Review articleA Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...
Med Sci Monit 2022; 28:e936292
01 Nov 2020 : Review articleLong-Term Respiratory and Neurological Sequelae of COVID-19
Med Sci Monit 2020; 26:e928996