Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Inherited gene may increase risk for prostate cancer by 50%

17.02.2005


Results point to novel pathway for development of prostate cancer



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."

The Mount Sinai Press Office | EurekAlert!
Further information:
http://www.mssm.edu

More articles from Life Sciences:

nachricht Nanoparticle Exposure Can Awaken Dormant Viruses in the Lungs
16.01.2017 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt

nachricht Cholera bacteria infect more effectively with a simple twist of shape
13.01.2017 | Princeton University

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Water - as the underlying driver of the Earth’s carbon cycle

17.01.2017 | Earth Sciences

Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

17.01.2017 | Materials Sciences

Smart homes will “LISTEN” to your voice

17.01.2017 | Architecture and Construction

VideoLinks
B2B-VideoLinks
More VideoLinks >>>