Publications

Publications

The prognostic significance of combined ERG and androgen receptor expression in patients with prostate cancer managed by androgen deprivation therapy

By:
Contributors: Bryan Donnelly, MD, MSc, FRCSC, Tarek Bismar Research Group

Cancer Biol Ther. 2014 Sep;15(9):1120-8. doi: 10.4161/cbt.29689. Epub 2014 Jun 27.

Huang KC1, Alshalalfa M2, Hegazy SA3, Dolph M1, Donnelly B4, Bismar TA5.

 

Abstract

ERG and androgen receptor (AR) are known to function cooperatively in prostate cancer (PCa) progression. However, the prognostic value of combined ERG and AR expression and potential pathways are not well characterized. We assessed ERG and AR protein expression by immunohistochemistry in a cohort of 312 men with PCa diagnosed by transurethral resection of the prostate (TURP). Patients were divided into those with no prior hormonal treatment (designated as PCa/AdvPCa) vs. those with castrate-resistant PCa (CRPC) undergoing channel TURP to relieve obstructive symptoms. The expression status was correlated with various clinical-pathological parameters. The Swedish watchful-waiting cohort was used for validation and characterization of potential gene signatures associated with ERG and AR.   Patients with combined ERG-positive/AR high expression profile demonstrated higher rates of PCa-specific mortality (PCSM) compared with patients with ERG-negative/AR low in patients with no prior treatment (n = 90, P = 0.032), but this was attenuated in the overall cohort which included the CRPC subgroup (n = 125, P = 0.096). The prognostic significance to PCSM was validated in the Swedish watchful waiting cohort in univariate (HR: 3.3; 95% CI: 1.9-5.6, P = 4.25E-5) and multivariate analysis (HR: 2; 95% CI: 0.97-4.1, P = 0.057), which included Gleason score. ERG/AR overexpression status characterized 152 genes signatures including WNT, PI3K/AKT and chemokine signaling pathways known to be deregulated in PCa. In conclusion, combined ERG/AR overexpression signifies a class of patients at highest-risk of PCSM with specific key genetic alteration likely responsible for disease progression. The prognostic value of combined ERG/AR overexpression and its associated genes should be further investigated as potential prognostic and therapeutic targets in prostate cancer progression.

PubMed

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Kaye Fund Awards: Congratulations to our APCaRI members!

University Hospital Foundation – Kaye Fund Awards

Congratulations to two APCaRI principal investigators; Dr. John Lewis and Dr. Frank Wuest for their 2018 Kaye Fund Awards! From an initial field of 80 applicants, 7 Kaye Fund Awards in total were given to medical researchers studying a diverse array of health-relevant topics of huge importance to Albertans and the rest of the world alike.

John Lewis’ project is titled “Improving the Management of Prostate Cancer Using Advanced Biofluid Diagnostics” and Frank Wuest’s project is “Novel Radiolabeled PSMA Inhibitors for Clinical PET Imaging of Prostate Cancer”. Both projects are poised to greatly improve prostate cancer diagnosis and treatment in the near future.

The University of Alberta Hospital (UAH), Kaye Edmonton Clinic (KEC) and the University Hospital Foundation (UHF) launched the Kaye Fund Competition in the fall of 2017. Recipients of this inaugural competition were announced July 4th, 2018. The Kaye Fund Competition aims to support individuals or collaborative, inter-disciplinary and multi-disciplinary teams in the pursuit of research, innovation and quality improvement projects that will establish new approaches to patient care.

The Kaye Fund Award is funded by a transformational $30 million donation from Mr. Donald Kaye. This gift is directed to advancing patient care and medical research to the Kaye Edmonton Clinic, and remains one of largest donations in the history of Canadian healthcare philanthropy.

Mr. Donald Kaye

Through his naming gift to the University Hospital Foundation, Donald Kaye has transformed years of hard work, prudent decision-making and wise investing into one of the largest donations in the history of Canadian healthcare philanthropy. And in doing so, Mr. Kaye is advancing patient care and medical research in a way that is both intently focused, and broadly based.  

 

 

- Perrin Beatty