Featured Research

from universities, journals, and other organizations

Stopping tumors in their path

Date:
January 8, 2014
Source:
McGill University
Summary:
Glioblastoma is the most common and deadly form of primary malignant brain cancer, occurring mostly in adults between the ages of 45 and 70. The recurrence of GBM is usually fatal, resulting in an average patient survival time of less than two years. A new study identifies two specific key players in the growth of GBM.

Glioblastoma (GBM) is the most common and deadly form of primary malignant brain cancer accounting for approximately 15% of all brain tumours and occurring mostly in adults between the ages of 45 and 70. The aggressive recurrent nature of this cancer is only temporarily contained by combined surgery, chemotherapy and radiation treatment. The recurrence of GBM is usually fatal, resulting in an average patient survival time of less than two years. A new study from the Montreal Neurological Institute and Hospital -- The Neuro -- at McGill University, published in Nature Communications, identifies two specific key players in the growth of GBM.

A GBM tumour contains a complex combination of different cell types, including 'stem-like' cells that are able to initiate brain tumour growth, even when present in very small numbers. These cells, known as brain-tumour initiating cells (BTICs), are believed to be among the cells that can re-initiate GBM if they are not completely eradicated through surgery, radiation and chemotherapy. Thus, BTICs represent an important therapeutic target for GBM treatment strategies.

"We wanted to find out how GBM-derived BTICs are able to initiate a tumour with the ultimate goal of preventing the re-growth of this deadly form of brain cancer," says Dr. Stefano Stifani, neuroscientist at The Neuro and senior investigator on the paper. "What we found is that by impairing the activity of two transcription factors (proteins that control gene expression), termed FOXG1 and TLE, we can significantly reduce the ability of BTICs to give rise to brain tumours." The researchers studied brain tumour growth in an in vivo mouse model using human GBM-derived BTICs. This approach provides what is called an in vivo environment that closely resembles the original human brain tumours. The demonstration that the FOXG1 and TLE proteins are important for the tumour-forming ability of human GBM-derived BTICs has long-term implications because FOXG1 and TLE control the expression of numerous genes. Identifying the genes whose expression is controlled by FOXG1 and TLE is expected to provide further information on the mechanisms involved in GBM tumourigenesis. In the long term, researchers hope to identify multiple important regulators, in order to find new potential therapeutic targets to impair the tumourigenic ability of BTICs.

"The implication of transcription factors FOXG1 and TLE in the tumour-forming ability of BTICs opens the door to possible strategies to block tumour growth -- a major advance in the fight against GBM."


Story Source:

The above story is based on materials provided by McGill University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Federica Verginelli, Alessandro Perin, Rola Dali, Karen H. Fung, Rita Lo, Pierluigi Longatti, Marie-Christine Guiot, Rolando F. Del Maestro, Sabrina Rossi, Umberto di Porzio, Owen Stechishin, Samuel Weiss, Stefano Stifani. Transcription factors FOXG1 and Groucho/TLE promote glioblastoma growth. Nature Communications, 2013; 4 DOI: 10.1038/ncomms3956

Cite This Page:

McGill University. "Stopping tumors in their path." ScienceDaily. ScienceDaily, 8 January 2014. <www.sciencedaily.com/releases/2014/01/140108123719.htm>.
McGill University. (2014, January 8). Stopping tumors in their path. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2014/01/140108123719.htm
McGill University. "Stopping tumors in their path." ScienceDaily. www.sciencedaily.com/releases/2014/01/140108123719.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com
Google's Next Frontier: The Human Body

Google's Next Frontier: The Human Body

Newsy (July 27, 2014) Google is collecting genetic and molecular information to paint a picture of the perfectly healthy human. Video provided by Newsy
Powered by NewsLook.com
What's To Blame For Worst Ebola Outbreak In History?

What's To Blame For Worst Ebola Outbreak In History?

Newsy (July 27, 2014) A U.S. doctor has tested positive for the deadly Ebola virus, as the worst-ever outbreak continues to grow. Video provided by Newsy
Powered by NewsLook.com
Losing Sleep Leaves You Vulnerable To 'False Memories'

Losing Sleep Leaves You Vulnerable To 'False Memories'

Newsy (July 27, 2014) A new study shows sleep deprivation can make it harder for people to remember specific details of an event. 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