Navigation Links
Scientists Spot Real 'Smoking Gun' in Prostate Cancer
Date:5/21/2010

Gene fusion may be behind disease, not androgen receptors, study suggests

FRIDAY, May 21 (HealthDay News) -- The primary cause of prostate cancer could be the fusion of two genes and the subsequent abnormal prostate cell growth that results when receptors for the hormone androgen get blocked, a new study reveals.

The implication is that standard efforts to treat the disease by targeting the androgen receptors might be missing the real "smoking gun," a University of Michigan Comprehensive Cancer Center team suggests.

"We need to begin to think about targeting prostate cancer by targeting the gene fusion, and not confining our approaches to androgen receptors," study author Dr. Arul Chinnaiyan, director of the Michigan Center for Translational Pathology, said in a news release. "If we're going to find a more durable therapy, we need to get at the gene fusion."

Chinnaiyan and his colleagues report their findings in the May 18 issue of Cancer Cell.

The authors note that typical prostate cancer treatments focus on drugs that attempt to slow production of androgen, the male hormone that regulates healthy prostate growth. However, such efforts usually become less effective over time as cancer cell resistance mounts, making recurrent cancer much less amenable to similar treatments.

But having earlier identified a so-called "on switch" for prostate cancer development in the form of the initial fusion of a prostate gene with a cancer-causing gene, Chinnaiyan and colleagues now have launched a new investigation into what happens post-fusion.

By using high-tech genetic mapping techniques, the research team found that once fusion takes place, androgen receptors get blocked, in turn cutting off normal prostate cell growth while permitting cancer to spread.

"Our study shows the underlying problem in prostate cancer is the presence of a gene fusion, not the androgen receptor," Chinnaiyan said in the news release. "In many contexts, androgen signaling is actually a good thing, but the presence of the gene fusion blocks androgen receptor signaling, which alters normal prostate cell development. While current treatments for advanced prostate cancer are focused on hormone deprivation and are quite effective, at least initially, future therapies need to be developed that target the prostate cancer gene fusion."

More information

For more on prostate cancer, visit the U.S. National Cancer Institute.



-- Alan Mozes



SOURCE: Cancer Cell, news release, May 19, 2010


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Scientists discover the molecular heart of collective behavior
2. Scientists Map Genetic Codes of Human Microbes
3. Scientists find protein spurs spread of prostate cancer
4. What to Read on World Ocean Day: Scientists and Non Profits Herald New Eco-Thriller Eye of the Whale
5. Clue to switch of bladder cancer from locally contained to invasive found by Jefferson scientists
6. Wistar scientists explain the persistence of melanoma through dynamic stemness
7. Mass. Eye and Ear receives NEI grant renewal for growing clinical/scientists
8. Scientists Map Neanderthal Genome
9. Genome breakthrough allows scientists to identify and profile tumor cells from very small samples
10. Scientists Unravel Secret of HIV Resistance
11. A century-old puzzle comes together: Scientists ID potential protein trigger in lung disease sarcoidosis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/20/2017)... ... , ... Leading dental clinicians, Drs. Ashlyn Price, Autumn Mayers and Ron Adelman, ... systems. With advanced digital images and modeling capabilities, the dentists identify all of the ... oral health for those who are missing teeth in Midlothian, VA. , ...
(Date:6/20/2017)... ... June 20, 2017 , ... This year, participants in the ... finding product improvements that could reduce the occurrence of unplanned extubations (UEs). ... breathing or to provide medication. Sometimes, patient movement can cause unplanned extubations which ...
(Date:6/20/2017)... ... June 20, 2017 , ... BrightStar Care Centerville/South Dayton, a ... the Joint Commission, which accredits and certifies nearly 21,000 healthcare organizations and programs ... a symbol of quality that reflects an organization’s commitment to meeting certain performance ...
(Date:6/20/2017)... ... June 20, 2017 , ... The law firm of ... installation as the president of the DuPage County Bar Association’s Board of Directors. Cassioppi ... June 9 at the Drake in Oak Brook. Momkus McCluskey Roberts LLC attorney Stacey ...
(Date:6/19/2017)... ... 19, 2017 , ... Intrinsic Clinical Systems announced it will ... actionable insights to improve health globally through the advancement of lifesaving medicines and ... faster, easier, and less painful. Attendees can visit Intrinsic’s booth showcasing its four ...
Breaking Medicine News(10 mins):
(Date:6/14/2017)... , June 14, 2017  In 2016, ... Creative Startups pitch competition and came away with ... platform is described by Forbes as "entering the life ... Medical Association as teaching "empathy to medical professionals in ... startup was recently named a finalist for the Department ...
(Date:6/9/2017)... 9, 2017 AirXpanders, Inc. (ASX: AXP) (AirXpanders ... design, manufacture, sale and distribution of the AeroForm® Tissue ... of its commercial roll-out in the United ... than one hundred (100) medical institutions and health systems, ... a needle-free alternative for women who choose reconstructive surgery ...
(Date:6/7/2017)... June 7, 2017 Endo International plc (NASDAQ: ... 2017, the Hon. Joseph R. Goodwin , U.S. ... West Virginia , entered a case management ... Repair System Products Liability Litigation (the "MDL") that includes ... to provide expert disclosures on specific causation within one ...
Breaking Medicine Technology: