Featured Research

from universities, journals, and other organizations

New breast and ovarian cancer susceptibility gene identified

Date:
April 22, 2010
Source:
Technische Universitaet Muenchen
Summary:
Medical researchers report evidence unambiguously implicating the gene RAD51C in susceptibility to breast and ovarian cancer. This gene normally plays a role in DNA repair. By screening RAD51C in unrelated individuals from 1,100 German families with hereditary breast and ovarian cancers, the researchers identified six mutations that increase cancer risk.

The discovery 15 years ago that the genes BRCA1 and BRCA2 confer high risks for breast and ovarian cancer was a breakthrough for cancer prediction and therapy, especially for familial cases. Now the research group of Prof. Alfons Meindl (Klinikum rechts der Isar of the Technische Universitaet Muenchen), in collaboration with other groups from Germany, the U.K., and the U.S., can identify another gene that increases susceptibility to breast and ovarian cancer. Their results have been published online in Nature Genetics.

The identification of such high risk-conferring genes is a prerequisite for offering women tailored early recognition programs and more individualized therapies.

The gene newly identified as causing breast and ovarian cancer in familial cases is designated RAD51C. It is, like BRCA1 and BRCA2, essential for DNA repair within cells. Mutations in the gene can therefore cause either breast or ovarian cancer. In six out of 480 pedigrees with occurrence of breast and/or ovarian cancer, mutations within the RAD51C gene were found. The risk for breast cancer in women with mutation of RAD51C is 60 to 80 percent, for ovarian cancer 20 to 40 percent. As the cancers in such families were diagnosed significantly earlier than in women who developed sporadic breast or ovarian cancer, experts might also call the newly identified gene BRCA3.

"These results reinforce our assumption that various rare gene mutations contribute to hereditary breast and ovarian cancer. The now known genes that predispose women to breast and/or ovarian cancer only explain 60 percent of the high-risk families," says TUM Professor Alfons Meindl, Klinikum rechts der Isar, but novel technologies allow the rapid identification of other such rarely mutated disease-causing genes.

"We are also optimistic that in the future the individual breast cancer risks for the majority of women can be determined. These risk predictions will allow the offering of tailored prevention and small meshed early recognition programs. Risk-aligned prevention will become a new clinical area," explains Prof. Dr. Rita Schmutzler of the University Hospital of Cologne, one of the other main authors of the article.


Story Source:

The above story is based on materials provided by Technische Universitaet Muenchen. Note: Materials may be edited for content and length.


Journal Reference:

  1. Alfons Meindl, Heide Hellebrand, Constanze Wiek, Verena Erven, Barbara Wappenschmidt, Dieter Niederacher, Marcel Freund, Peter Lichtner, Linda Hartmann, Heiner Schaal, Juliane Ramser, Ellen Honisch, Christian Kubisch, Hans E Wichmann, Karin Kast, Helmut Deiίler, Christoph Engel, Bertram Mόller-Myhsok, Kornelia Neveling, Marion Kiechle, Christopher G Mathew, Detlev Schindler, Rita K Schmutzler, Helmut Hanenberg. Germline mutations in breast and ovarian cancer pedigrees establish RAD51C as a human cancer susceptibility gene. Nature Genetics, 2010; DOI: 10.1038/ng.569

Cite This Page:

Technische Universitaet Muenchen. "New breast and ovarian cancer susceptibility gene identified." ScienceDaily. ScienceDaily, 22 April 2010. <www.sciencedaily.com/releases/2010/04/100421111359.htm>.
Technische Universitaet Muenchen. (2010, April 22). New breast and ovarian cancer susceptibility gene identified. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2010/04/100421111359.htm
Technische Universitaet Muenchen. "New breast and ovarian cancer susceptibility gene identified." ScienceDaily. www.sciencedaily.com/releases/2010/04/100421111359.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) — A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com
Google's Next Frontier: The Human Body

Google's Next Frontier: The Human Body

Newsy (July 27, 2014) — Google is collecting genetic and molecular information to paint a picture of the perfectly healthy human. Video provided by Newsy
Powered by NewsLook.com
What's To Blame For Worst Ebola Outbreak In History?

What's To Blame For Worst Ebola Outbreak In History?

Newsy (July 27, 2014) — A U.S. doctor has tested positive for the deadly Ebola virus, as the worst-ever outbreak continues to grow. Video provided by Newsy
Powered by NewsLook.com
Losing Sleep Leaves You Vulnerable To 'False Memories'

Losing Sleep Leaves You Vulnerable To 'False Memories'

Newsy (July 27, 2014) — A new study shows sleep deprivation can make it harder for people to remember specific details of an event. 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