Androgen receptor splicing variant 7: Beyond being a constitutively active variant

Publication date: Available online 21 August 2019Source: Life SciencesAuthor(s): Chen Shao, Bingbing Yu, Yanan LiuAbstractIn prostate cancer development, the androgen receptor (AR) signaling plays a crucial role during both formation of early prostate lesions and progression to the lethal, incurable castration resistant stage. Accordingly, numerous approaches have been developed to inhibit AR activity including androgen deprivation therapy, application of the AR antagonists as well as the use of taxanes. However, these treatments, although effective initially, resistance inevitably occur for most of the patients within several years and limiting the therapeutic efficacy. Of note, alterations and reactivation of the AR signaling pathway have been demonstrated as the major reasons for the observed resistance. Accumulating evidences have suggested that synthesis of AR splicing variants, in particular, the constitutively active AR-V7, is one of the most important mechanisms that contribute to the abnormal AR signaling. In addition, clinical data also highlight the potential of using AR-V7 as a predictive biomarker and a therapeutic target in metastatic castration resistant prostate cancer (mCRPC). In this review, we summarize the recent findings concerning the specific role of AR-V7 in CRPC progression, drug resistance and its potential value in clinical assessment.Graphical abstract
Source: Life Sciences - Category: Biology Source Type: research

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Abstract Prostate cancer (PCa) incidence has been rising in Chinese population. Current PSA-based biopsy has limited positive rate. Our research focused on development of serum markers for the diagnosis of PCa in patients with elevated PSA. miRNAs are found to be aberrantly expressed in many types of cancer. They are readily detectable in plasma and serum. Currently, miRNAs are being evaluated as potential prognostic and diagnostic tools for many types of cancer. We first profiled global serum miRNAs in a pilot set of PCa and benign prostatic hyperplasia (BPH) cases undergoing TRUS-guided prostate biopsy due to el...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
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Source: Actas Urologicas Espanolas - Category: Urology & Nephrology Source Type: research
Treatments for advanced prostate cancer that suppress testosterone, a hormone (also called an androgen) that drives the malignant cells to grow and spread, are collectively referred to as androgen deprivation therapies, or ADT. These therapies can significantly extend lifespans in men who have the disease, but they also have a range of challenging side effects. In 2004, Dr. Marc Garnick, Gorman Brothers Professor of Medicine at Harvard Medical School and Beth Israel Deaconess Medical Center, and editor in chief of HarvardProstateKnowledge.org, reported that in some men, an ADT drug called aberelix lengthens the time it tak...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Health Living With Prostate Cancer Men's Health Prostate Health Prostate Knowledge Treatments HPK Source Type: blogs
Condition:   Adenocarcinoma of the Prostate Intervention:   Biological: ORCA-010 Sponsors:   Orca Therapeutics B.V.;   CMX Research Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
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Source: Daily Express - Health - Category: Consumer Health News Source Type: news
Authors: Bonk S, Kluth M, Hube-Magg C, Polonski A, Soekeland G, Makropidi-Fraune G, Möller-Koop C, Witt M, Luebke AM, Hinsch A, Burandt E, Steurer S, Clauditz TS, Schlomm T, Perez D, Graefen M, Heinzer H, Huland H, Izbicki JR, Wilczak W, Minner S, Sauter G, Simon R Abstract To assess the prognostic and diagnostic utility of PSA immunostaining, tissue microarrays containing 17,747 prostate cancers, 3,442 other tumors from 82 different (sub) types and 608 normal tissues were analyzed at two different antibody concentrations (1:100 and 1:800). In normal tissues, PSA expression was limited to prostate epithelial c...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
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Source: Bayer IR Newsfeed: Events - Category: Pharmaceuticals Source Type: news
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Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
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Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
Publication date: Available online 19 September 2019Source: European UrologyAuthor(s): Nicolai A. Huebner, Shahrokh F. Shariat
Source: European Urology - Category: Urology & Nephrology Source Type: research
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