Navigation Links
Scientists May Have Found Missing Link to Common Brain Cancer
Date:8/4/2011

THURSDAY, Aug. 4 (HealthDay News) -- A map of the genetic mutations associated with the second most common form of brain cancer appears to reveal the biological cause of the tumors, researchers report.

They created the map by sequencing protein-coding genes in seven samples of tissue from oligodendroglioma tumors, and concentrated on recurring mutations in two genes (CIC and FUBP1) not previously associated with those types of tumors.

The genes appear to be the missing link in the "two-hit" theory of cancer development, the scientists said. That is, each cell in the body has two copies of 23 chromosomes, representing thousands of genes that produce protein. If one copy is missing, the other copy can make up for the lack of protein. But if the second copy fails, it can become cancerous.

For years, scientists have known that the "first hit" in oligodendrogliomas appears in the regions of chromosomes 1 and 19, which fuse together and cause the loss of many genes.

In this study, scientists found mutations in the CIC and FUBP1 genes on chromosomes 1 and 19, which suggests they are the "second hit" needed to cause cancer.

More mutations in the genes -- which regulate cell-signaling processes -- were found in an additional 27 tumor samples. Of all the tumor samples analyzed in the study, two-thirds had CIC and FUBP1 mutations, said the Johns Hopkins Kimmel Cancer Center scientists.

"Whenever we find genes mutated in a majority of tumors, it is likely that the pathway regulated by that gene is critical for the development and biology of the tumor," Nickolas Papadopoulos, an associate professor of oncology, said in a center news release.

The study appears Aug. 4 in the journal Science.

About 20 percent of brain cancers are oligodendrogliomas, which tend to affect people aged 30 to 45 and most often form on the frontal lobe in cells that coat neurons. Treatment involves surgery followed by chemotherapy and radiation. Median survival is 10 years.

More information

The National Brain Tumor Society has more about oligodendroglioma tumors.

-- Robert Preidt

SOURCE: Johns Hopkins Kimmel Cancer Center, news release, Aug. 4, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Have we met before? Scientists show why the brain has the answer
2. Scientists Warn of New Multidrug-Resistant Salmonella
3. Johns Hopkins scientists begin first-of-its-kind research to create blood platelets from stem cells
4. Scientists show swamp gas protects blood vessels from complications of diabetes
5. Scientists receive funding boost to further research into disease mechanisms of Alzheimer’s
6. Scientists ID Gene Linked to Syndrome Behind Elephant Man Disease
7. Scientists developing new therapy for HER2-positive breast cancer
8. UT Southwestern scientists discover new pathway to potential therapies for advanced prostate cancer
9. Scientists Close in on Origins of Psoriasis, Eczema
10. Hebrew U. scientists identify molecular basis for DNA breakage
11. Scientists Spot Possible Target in Ovarian Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists May Have Found Missing Link to Common Brain Cancer
(Date:10/13/2017)... ... , ... The American Board of Family Medicine's (ABFM) Board of Directors has ... succeeding Dr. James C. Puffer upon his retirement. Dr. Newton will serve in the ... at the end of 2018. Upon assuming the role of President and CEO on ...
(Date:10/13/2017)... , ... October 13, 2017 ... ... of Pharmacy (SOP) alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ... on guideline updates for the primary prevention of cardiovascular diseases during the ...
(Date:10/13/2017)... Calif. (PRWEB) , ... October 13, 2017 , ... Many ... dementia. However, many long-term care insurance companies have a waiver for care if the ... 90-day elimination period, when the family pays for care, is often waived, so the ...
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th ... Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s CEO, ... The fun run is geared towards children of all ages; it is a non-competitive, ...
(Date:10/13/2017)... ... October 13, 2017 , ... Coveros, a leader ... been awarded a contract by the Center for Medicare and Medicaid Services (CMS). ... the enterprise use of Agile methodologies in a consistent and high value manner ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... Hill-Rom Holdings, Inc. (NYSE: HRC), will host ... webcast on Friday, November 3, 2017, beginning at 7:00 ... approximately 8:30 a.m. (CDT) / 9:30 a.m. (EDT). ... performance and guidance for 2018, Hill-Rom executives will also ... performance, and long-range financial outlook through 2020. ...
(Date:9/25/2017)... PROVIDENCE, R.I. , Sept. 25, 2017 /PRNewswire/ ... immunogenicity assessment, vaccine design, and immune-engineering today announced ... focused on the development of personalized therapeutic cancer ... and has provided exclusive access to enabling technologies ... MSc Eng., MBA will lead EpiVax Oncology as ...
(Date:9/19/2017)... 19, 2017   ZirMed Inc ., a recognized leader ... that it has been ranked #1 by its users for ... Rankings 2017 User Survey. ZirMed was recognized as the top-ranked ... and medical centers over 200 beds and holds one of ... user survey history. ...
Breaking Medicine Technology: