Featured Research

from universities, journals, and other organizations

Chemical Compound May Stop Deadly Brain Tumors

Date:
April 10, 2009
Source:
University of North Carolina School of Medicine
Summary:
Researchers have identified a compound that could be modified to treat one of the most deadly types of cancer, and discovered how a particular gene mutation contributes to tumor growth.

Yue Xiong, Ph.D.
Credit: Image courtesy of University of North Carolina School of Medicine

Researchers at the University of North Carolina at Chapel Hill School of Medicine have identified a compound that could be modified to treat one of the most deadly types of cancer, and discovered how a particular gene mutation contributes to tumor growth.

The findings and potential treatment apply to a type of brain tumor called secondary glioblastoma multiforme (GBM). GBMs are part of a larger group of brain tumors called malignant gliomas, which is the type of cancer Senator Edward Kennedy suffers from.

A report of the research will appear in the April 10, 2009 issue of the journal Science. In experiments with tumor cells, the researchers reversed the effects of a mutation in a gene called isocitrate dehydrogenase-1 (IDH1) by replenishing a compound called α-ketoglutarate (α-KG).

"When the IDH1 gene is mutated, the level of α-KG is reduced, which in turn contributes to tumor growth by helping to increase the supply of nutrients and oxygen to tumor cells. When we added the α-KG to tumor cells, the effects caused by the IDH1 mutation were reversed," said Yue Xiong, Ph.D., William R. Kenan Jr., Distinguished Professor of Biochemistry and Biophysics and a member of the UNC Lineberger Comprehensive Cancer Center.

"If scientists can develop α-KG into a clinical drug, it could potentially be used for treating brain tumor patients who have this specific gene mutation. The α-KG compound is already there; it only needs to be modified to be used clinically, so that may save a lot of time," Xiong said.

Xiong is a corresponding author of the study along with Kun-Liang Guan, Ph.D., professor of pharmacology at the University of California, San Diego. The findings and potential treatment apply mostly to secondary GBM, rather than a different type of tumor called primary GBM. About 75 percent of secondary GBMs have mutations in the IDH1 gene, but only 5 percent of primary GBMs have this mutation, Xiong said. Even though these two types of GBM have a similar end result, the tumor types develop in very different ways, and doctors will need very different treatments to stop them. The first author of the Science paper is Shimin Zhao, Ph.D., of Fudan University in Shanghai, China. Zhao and students in his lab made key contributions to the research, Xiong said. Those students, also authors on the paper, are Yan Lin, Wei Xu, Wenqing Jiang, Zhengyu Zha, Pu Wang, Wei Yu, Zhiqiang Li, Lingling Gong, Yingjie Peng, Jianping Ding and Qunying Lei.

Xiong and Guan helped develop the lab at Fudan University and supervise graduate student training and project development there.

Xiong and his colleagues are continuing studies of other effects of the IDH1 mutation and are developing a mouse model of secondary GBM that could be used to test the potential treatment.

The current study was supported by the National Institutes of Health, the Chinese Ministry of Education, State Key Development Programs of China, National 863 Program of China, China NSF grants and Shanghai Key Basic Research Projects.


Story Source:

The above story is based on materials provided by University of North Carolina School of Medicine. Note: Materials may be edited for content and length.


Cite This Page:

University of North Carolina School of Medicine. "Chemical Compound May Stop Deadly Brain Tumors." ScienceDaily. ScienceDaily, 10 April 2009. <www.sciencedaily.com/releases/2009/04/090409142256.htm>.
University of North Carolina School of Medicine. (2009, April 10). Chemical Compound May Stop Deadly Brain Tumors. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2009/04/090409142256.htm
University of North Carolina School of Medicine. "Chemical Compound May Stop Deadly Brain Tumors." ScienceDaily. www.sciencedaily.com/releases/2009/04/090409142256.htm (accessed July 22, 2014).

Share This




More Health & Medicine News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Scientists Find New Way To Make Human Platelets

Scientists Find New Way To Make Human Platelets

Newsy (July 22, 2014) Boston scientists have discovered a new way to create fully functioning human platelets using a bioreactor and human stem cells. Video provided by Newsy
Powered by NewsLook.com
Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
Powered by NewsLook.com
$23.6 Billion Awarded To Widow In Smoking Lawsuit

$23.6 Billion Awarded To Widow In Smoking Lawsuit

Newsy (July 20, 2014) Cynthia Robinson claims R.J. Reynolds Tobacco Company hid the health and addiction risks of its products, leading to the death of her husband in 1996. 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