Published in the Feb. 3 early online issue of EMBO Molecular Medicine, the study explored an inherited mutation located in part of the KRAS gene, which leads to abnormal endometrial growth and endometrial risk. In endometriosis, uterine tissue grows in other parts of the body, such as the abdominal cavity, ovaries, vagina, and cervix. The condition is often hereditary and is found in 5%-15% of women of reproductive age, affecting over 70 million women worldwide.
Although the disorder has been studied for many years, its exact cause and how it develops remained unclear. It was previously shown that activating the KRAS gene caused mice to develop endometriosis. However, no mutations in this gene have been identified in women with endometriosis.
Led by senior author Hugh S. Taylor, M.D., professor and chief of the Division of Reproductive Endocrinology and Infertility in the Department of Obstetrics, Gynecology & Reproductive Sciences, the authors studied 132 women with endometriosis and evaluated them for a newly identified mutation in the region of the KRAS gene responsible for regulation. This mutation was previously linked to an increased risk of lung and ovarian cancer by study co-author Joanne Weidhaas, M.D., assistant professor of therapeutic radiology.
"We found that 31% of the women with endometriosis in the study carried this mutation, compared to only 5.8% of the general population," said Taylor. "The presence of this mutation was also linked to higher KRAS protein levels and associated with an increased capacity for these cells to spread. It also may explain the higher risk of ovarian cancer in women who have had endometriosis."
The Yale team is the first to identify a cause of this common and previously little understood disease. "This mutation potentially represents a new therapeutic target for endometriosis as well as a basis of potential screening methods to determine who is at risk for developing endometriosis," said Taylor.
Other authors on the study include Olga Grechukhina, Rafaella Petracco, Shota Popkhadze, Trupti Paranjape, Elcie Chan, Idhaliz Flores, and Joanne Weidhaas.
The National Institutes of Health supported the study.
Citation: EMBO Molecular Medicine DOI: 10.1002/emmm.201100200 http://onlinelibrary.wiley.com/doi/10.1002/emmm.201100200/abstract
Karen N. Peart | EurekAlert!
Superresolution live-cell imaging provides unexpected insights into the dynamic structure of mitochondria
18.02.2020 | Heinrich-Heine-Universität Düsseldorf
Blood and sweat: Wearable medical sensors will get major sensitivity boost
18.02.2020 | Moscow Institute of Physics and Technology
Most natural and artificial surfaces are rough: metals and even glasses that appear smooth to the naked eye can look like jagged mountain ranges under the microscope. There is currently no uniform theory about the origin of this roughness despite it being observed on all scales, from the atomic to the tectonic. Scientists suspect that the rough surface is formed by irreversible plastic deformation that occurs in many processes of mechanical machining of components such as milling.
Prof. Dr. Lars Pastewka from the Simulation group at the Department of Microsystems Engineering at the University of Freiburg and his team have simulated such...
Investigation of the temperature dependence of the skyrmion Hall effect reveals further insights into possible new data storage devices
The joint research project of Johannes Gutenberg University Mainz (JGU) and the Massachusetts Institute of Technology (MIT) that had previously demonstrated...
Researchers at Chalmers University of Technology, Sweden, recently completed a 5-year research project looking at how to make fibre optic communications systems more energy efficient. Among their proposals are smart, error-correcting data chip circuits, which they refined to be 10 times less energy consumptive. The project has yielded several scientific articles, in publications including Nature Communications.
Streaming films and music, scrolling through social media, and using cloud-based storage services are everyday activities now.
After helping develop a new approach for organic synthesis -- carbon-hydrogen functionalization -- scientists at Emory University are now showing how this approach may apply to drug discovery. Nature Catalysis published their most recent work -- a streamlined process for making a three-dimensional scaffold of keen interest to the pharmaceutical industry.
"Our tools open up whole new chemical space for potential drug targets," says Huw Davies, Emory professor of organic chemistry and senior author of the paper.
Superconductivity approaching room temperature may be possible in hydrogen-rich compounds at much lower pressures than previously expected
Reaching room-temperature superconductivity is one of the biggest dreams in physics. Its discovery would bring a technological revolution by providing...
12.02.2020 | Event News
16.01.2020 | Event News
15.01.2020 | Event News
18.02.2020 | Power and Electrical Engineering
18.02.2020 | Information Technology
18.02.2020 | Physics and Astronomy