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Current Molecular Medicine


ISSN (Print): 1566-5240
ISSN (Online): 1875-5666

Research Article

Novel Insight into Differential Gene Expression and Clinical Significance of Dopamine Receptors, COMT, and IL6 in BPH and Prostate Cancer

Author(s): Fatemeh Akbarian, Maryam Abolhasani, Farid Dadkhah, Farrokh Asadi and Ghasem Ahangari*

Volume 19, Issue 8, 2019

Page: [605 - 619] Pages: 15

DOI: 10.2174/1566524019666190709180146

Price: $65


Background: Benign prostatic hyperplasia (BPH) and prostate cancer (PCa) are the most prevalent diseases in male population, implicated with fundamental differences between benign and malignant growth of prostate cells. An imbalance through a network of nervous, endocrine, and immune systems initiate a signal of altered growth from the brain to the prostate gland, leading to adverse effects such as inflammation.

Objective: The aim of this study was to evaluate the gene expression of dopamine receptor family, COMT, and IL6 to identify novel correlations in BPH and PCa in both blood and tumor of the patients.

Methods: Peripheral blood mononuclear cells from BPH (n= 30) and PCa (n= 30) patients, and prostate tumor tissues (n= 14) along with pathologically normal adjacent tissues (n= 14) were isolated, mRNA was extracted, and cDNA was synthesized, respectively. Quantitative real- time PCR was applied for DRD1- DRD5, COMT, and IL6 genes in all samples.

Results: We found, for the first time, that the expression of COMT and IL6 genes were inversely correlated with the expression of DRD1 and DRD2 genes through the extent of differentiation of PCa from BPH condition. In addition, the PSA levels were correlated with the expression of DRD1 in BPH cases and DRD1, DRD4, DRD5, and IL6 in PCa cases.

Conclusion: Results implicate a potential cross- talk between the signaling pathways derived by IL6 cytokine and dopamine receptors in PCa. Thus, it seems promising to reassemble the consequent signaling pathways by adequate agonists and antagonists to help increase therapeutic efficacy.

Keywords: Prostate cancer, benign prostatic hyperplasia, gene expression analysis, dopamine receptors gene family, IL6 pro-inflammatory cytokine, inflammation.

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