Featured Research

from universities, journals, and other organizations

'Regulatory' Genetic Sequences May Predict Risk For Prostate Cancer

Date:
August 18, 2009
Source:
University of Southern California
Summary:
Researchers have identified a novel genetic mechanism that may govern an individual's risk of developing prostate cancer.

Researchers at the Keck School of Medicine of the University of Southern California (USC) have identified a novel genetic mechanism that may govern an individual's risk of developing prostate cancer.

The findings, published today in the Public Library of Science (PLoS) Genetics journal, found mechanisms involved in cancer-associated sites in areas where no genes are present (gene 'deserts') at a chromosomal region called 8q24. The new findings show that some of these sites have embedded regulatory sequences that act as enhancers of gene expression, modulated by genetic variation, or single nucleotide polymorphisms (SNPs).

The two-year study, conducted by researchers from USC, Harvard University and the Weizmann Institute of Tel Aviv, Israel, found novel functions of SNPs in areas where no genes were present. They found how the SNPs are able to modulate genetic expression even while they were near no genes. SNPs denote a modest increase in risk for certain diseases; in this particular chromosomal area, the SNPs appear to be influencing gene expression for prostate (and other) cancer 'at a genetic distance'.

"The real contribution of this discovery is that we get a feel for a previously unappreciated mechanism that may be a predisposition to this disease," said Gerhard (Gerry) Coetzee, Ph.D., professor of urology and preventive medicine at the Keck School of Medicine and principal investigator on the study. "We have unearthed a new way to understand the risk for prostate cancer."

The study was prompted by discrepancies in prostate cancer risk among ethnic groups. Currently, risk factors for prostate cancer are governed by age, and a disproportionate increased risk chiefly among African-American men, with Caucasian men following and Asian men last. This gene 'desert' featuring versions of particular SNPs are found more often in African-American men and may explain their increased risk for the disease.

The National Cancer Institute and the L.K.Whittier Foundation funded the study.


Story Source:

The above story is based on materials provided by University of Southern California. Note: Materials may be edited for content and length.


Journal Reference:

  1. Li Jia, Gilad Landan, Mark Pomerantz, Rami Jaschek, Paula Herman, David Reich, Chunli Yan, Omar Khalid, Phil Kantoff, William Oh, J. Robert Manak, Benjamin P Berman, Brian E Henderson, Baruch Frenkel, Christopher A Haiman, Matthew Freedman, Amos Tanay, Gerhard A Coetzee. Functional Enhancers at the Gene-Poor 8q24 Cancer-Linked Locus. PLoS Genetics, 2009; DOI: 10.1371/journal.pgen.1000597

Cite This Page:

University of Southern California. "'Regulatory' Genetic Sequences May Predict Risk For Prostate Cancer." ScienceDaily. ScienceDaily, 18 August 2009. <www.sciencedaily.com/releases/2009/08/090814165259.htm>.
University of Southern California. (2009, August 18). 'Regulatory' Genetic Sequences May Predict Risk For Prostate Cancer. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2009/08/090814165259.htm
University of Southern California. "'Regulatory' Genetic Sequences May Predict Risk For Prostate Cancer." ScienceDaily. www.sciencedaily.com/releases/2009/08/090814165259.htm (accessed April 16, 2014).

Share This



More Health & Medicine News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. Video provided by Newsy
Powered by NewsLook.com
Cognitive Function: Is It All Downhill From Age 24?

Cognitive Function: Is It All Downhill From Age 24?

Newsy (Apr. 15, 2014) A new study out of Canada says cognitive motor performance begins deteriorating around age 24. Video provided by Newsy
Powered by NewsLook.com
How Mt. Everest Helped Scientists Research Diabetes

How Mt. Everest Helped Scientists Research Diabetes

Newsy (Apr. 15, 2014) British researchers were able to use Mount Everest's low altitudes to study insulin resistance. They hope to find ways to treat diabetes. Video provided by Newsy
Powered by NewsLook.com
Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Newsy (Apr. 14, 2014) Richard van As lost all fingers on his right hand in a woodworking accident. Now, he's used the incident to create a prosthetic to help hundreds. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins