Navigation Links
New study on popular prostate cancer protein provides insight into disease progression
Date:6/25/2013

LOS ANGELES (June 25, 2013) Researchers at the Cedars-Sinai Samuel Oschin Comprehensive Cancer Institute have uncovered for the first time the vital role a popular protein plays in the stroma, the cell-lined area outside of a prostate tumor.

Researchers have long understood the function of the protein, Caveolin-1 (Cav-1), in prostate cancer, including its role in treatment resistance and disease aggressiveness. However, prior to this study, little was known about the role of Cav-1 within the stroma.

The study, published in the Journal of Pathology, found that a decreased level of the Cav-1 protein in the stroma indicated tumor progression a function opposite to the known role of Cav-1 within a tumor. Inside the tumor, an increased level of this protein signifies tumor progression. These human tumor findings suggest that patients whose prostate tumor is surrounded by a stroma with decreased levels of the Cav-1 protein may have an overall worse prognosis and a higher chance of disease relapse.

"How a prostate tumor communicates with its microenvironment, or stroma, is a vital process we need to understand to assess the aggressiveness of a patient's disease and potential response to treatment," said Dolores Di Vizio, MD, PhD, associate professor in the Urologic Oncology Research Program and senior investigator of the study. "This research suggests that the cells surrounding a prostate tumor are equally as important as the tumor itself in helping understand the complexity of a man's disease. This early-stage research may provide a new, future marker that may ultimately aid diagnosis and treatment, and personalize prostate cancer therapy."

In addition to understanding the role of Cav-1 in the tumor microenvironment, researchers discovered that the loss of Cav-1 causes an increase of cholesterol in the stroma. Previous research findings suggest that cholesterol levels are related to aggressive prostate cancer, but cholesterol's role had never been evaluated within the stroma.

"Cholesterol has been shown to be a driver of prostate cancer progression," said Di Vizio. "For the first time in prostate cancer research, we found that when levels of Cav-1 decrease in the stroma, both cholesterol and androgens increase. This finding may partly explain a resistance to traditional treatments."

Though the findings are preliminary, the Cedars-Sinai researchers Di Vizio, Michael Freeman, PhD, vice chair of research in the Department of Surgery and professor/director of the Cancer Biology Program at the Samuel Oschin Comprehensive Cancer Institute, and post-doctoral fellows Matteo Morello, PhD, and Sungyong You, PhD, will continue evaluating the role of the Caveolin-1 protein in the stroma and its potential end benefit in patients.


'/>"/>

Contact: Cara Lasala
cara.lasala@cshs.org
310-423-7798
Cedars-Sinai Medical Center
Source:Eurekalert

Related medicine news :

1. Study finds dramatic increase in hospitalization of US children with inflammatory bowel disease
2. GAP-AF study helps to define optimal approach to ablation
3. New Study: Alcohol Drinkers May Face Long Term Health Issues
4. A Study Shows That Mom’s Obesity Surgery May Help Break Cycle in Obese Kids
5. New Study Casts Doubt on FDA Pradaxa Conclusions
6. Results of landmark 11-year study on weight losss effect on heart disease risks published today
7. Rottenstein Law Group LLP Acknowledges BMJ Study of Risks of Byetta, Januvia
8. JAAOS Study Exposes Importance of Child Safety Seats for Children between Four and Eight – Kiley Law Group, LLC
9. Renowned Hudson Valley ENT Sleep Specialist Selected to Participate in FDA Study of New Obstructive Sleep Apnea Treatment
10. SMU researcher receives Hogg Foundation grant to study childhood depression
11. Depression screening in AF Clinics recommended by study
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... Shelton, CT (PRWEB) , ... October 13, 2017 , ... ... and long-term care services, staged a mock evacuation of the facility as part of ... Department, Shelton Fire Department, Echo Hose EMS and Shelton City Emergency Manager, as well ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... Global Healthcare ... scenic Alexandria Park in Milford, NJ. This free event, sponsored by Global Healthcare ... activity. The fun run is geared towards children of all ages; it is ...
(Date:10/13/2017)... , ... October 13, 2017 , ... “The Journey: From ... every danger possible to save lost souls in the Philippines. “The Journey: From the ... is a dedicated teacher of the Bible. She has taught all ages and currently ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the largest ... its plans to open a flagship location in Covington, LA at 401 N. U.S. ... Go store next to Office Depot in the Holiday Square shopping center. Its location ...
(Date:10/12/2017)... ... 2017 , ... Asante, a nationally recognized health system in ... existing home health joint venture through an agreement, effective October 1, 2017, to ... home health company with Asante, delivering clinically integrated care, for the past eight ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... 12, 2017 AVACEN Medical , Inc. (AVACEN) ... their  2017 New Product Innovation Award for Its fibromyalgia ... and secondary medical device market research by Frost & Sullivan,s ... OTC, drug-free pain relief product, the AVACEN 100, offers a ... fibromyalgia widespread pain. ...
(Date:10/11/2017)... -- Caris Life Sciences ® , a leading innovator in ... medicine, today announced that St. Jude Medical Center,s Crosson ... as its 17 th member. Through participation with ... Institute will help develop standards of care and best ... cancer treatment more precise and effective. ...
(Date:10/10/2017)... --  West Pharmaceutical Services, Inc. (NYSE: WST), a ... today shared the results of a study highlighting the ... administration of polio vaccines. The study results were presented ... by Dr. Ondrej Mach , Clinical Trials and ... and recently published in the journal Vaccine. i ...
Breaking Medicine Technology: