Featured Research

from universities, journals, and other organizations

Inherited Gene May Increase Risk For Prostate Cancer By 50%

Date:
March 2, 2005
Source:
Mount Sinai Hospital / Mount Sinai School Of Medicine
Summary:
A single gene variant may increase a man's risk of prostate cancer by 50%, according to a new study led by researchers at Mount Sinai School of Medicine and published this week in Cancer Research.

A single gene variant may increase a man's risk of prostate cancer by 50%, according to a new study led by researchers at Mount Sinai School of Medicine and published this week in Cancer Research.

In 2001, Mount Sinai researchers published a study in Science that showed that a gene, known as KLF6, fails to function properly in at least 50 to 60 percent of all prostate cancers. This was the first single gene shown to be responsible for the majority of cases of this disease, which affects approximately 200,000 men each year.

This finding led to the question as to whether or not mutations in this gene that are present from birth might increase an individuals susceptibility to prostate cancer. John Martignetti, MD, PhD, Assistant Professor of Human Genetics at Mount Sinai and colleagues addressed this question by analyzing differences in the KLF6 gene in 3,411 blood samples from men in registries of three major cancer centers (Johns Hopkins University, the Mayo Clinic and Fred Hutchinson Cancer Research Center). Blood samples were divided into three groups based on the individuals from which they were taken – those with prostate cancer who had a family history of prostate cancer, those with prostate cancer and no family history of the disease, and those without prostate cancer.

About 17% of the patients with a family history of the disease and 15% of patients with no such history carried at lease one copy a single KLF6 variant, but only 11% of the controls had a copy. The significant difference in prevalence of the variant among three groups indicates that individuals with this particular gene variant face an approximately 50% increased risk for developing prostate cancer.

In the 2001 study, Dr. Martignetti, Scott Friedman, MD, Fishberg Professor of Medicine and Chief of the Division of Liver Diseases, and Goutham Narla, an MD/PhD student at Mount Sinai discovered that KLF6, functions as a tumor suppressor gene. Its role is to restrict cell growth. When KLF6 fails to function properly cell growth goes unchecked and cancer may results. It has since been discovered that KLF6 defects are implicated in a number of other human cancers, including colorectal, lung and liver.

The variant of the gene investigated in the report published this week produces a an altered version of the KLF6 protein. Rather than entering the cell nucleus to suppress cell growth as the KLF6 protein usually does, this altered version remains in the cytoplasm, where it has the opposite effect, thus increasing cell growth and potentially leading to the development of caner.

Prostate cancer is among the most prevalent cancers worldwide and is the second leading cause of male cancer-related death in the United States. Incidence is expected to double among men over age 65 in the next 25 years, according to the authors. "Our findings highlight a completely novel and previously unexplored pathway for the development of prostate cancer," said Dr. Martignetti. "Ultimately we plan to investigate the potential of this gene as a diagnostic tool, an indicator of a patients risk for prostate cancer, and as a potential target for new treatments."


Story Source:

The above story is based on materials provided by Mount Sinai Hospital / Mount Sinai School Of Medicine. Note: Materials may be edited for content and length.


Cite This Page:

Mount Sinai Hospital / Mount Sinai School Of Medicine. "Inherited Gene May Increase Risk For Prostate Cancer By 50%." ScienceDaily. ScienceDaily, 2 March 2005. <www.sciencedaily.com/releases/2005/02/050223125638.htm>.
Mount Sinai Hospital / Mount Sinai School Of Medicine. (2005, March 2). Inherited Gene May Increase Risk For Prostate Cancer By 50%. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2005/02/050223125638.htm
Mount Sinai Hospital / Mount Sinai School Of Medicine. "Inherited Gene May Increase Risk For Prostate Cancer By 50%." ScienceDaily. www.sciencedaily.com/releases/2005/02/050223125638.htm (accessed September 23, 2014).

Share This



More Health & Medicine News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Costs Keep Mounting

Ebola Costs Keep Mounting

Reuters - Business Video Online (Sep. 23, 2014) The WHO has warned up to 20,000 people could be infected with Ebola over the next few weeks. As Sonia Legg reports, the implications for the West African countries suffering from the disease are huge. Video provided by Reuters
Powered by NewsLook.com
Ebola Cases Could Reach 1.4 Million Within 4 Months

Ebola Cases Could Reach 1.4 Million Within 4 Months

Newsy (Sep. 23, 2014) Health officials warn that without further intervention, the number of Ebola cases in Liberia and Sierra Leone could reach 1.4 million by January. Video provided by Newsy
Powered by NewsLook.com
WHO: Ebola Cases to Triple in Weeks Without Drastic Action

WHO: Ebola Cases to Triple in Weeks Without Drastic Action

AFP (Sep. 23, 2014) The number of Ebola infections will triple to 20,000 by November, soaring by thousands every week if efforts to stop the outbreak are not stepped up radically, the WHO warned in a study on Tuesday. Duration: 01:01 Video provided by AFP
Powered by NewsLook.com
5 Ways Men Can Prevent Most Heart Attacks

5 Ways Men Can Prevent Most Heart Attacks

Newsy (Sep. 23, 2014) No surprise here: A recent study says men can reduce their risk of heart attack by maintaining a healthy lifestyle, which includes daily exercise. 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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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