Featured Research

from universities, journals, and other organizations

Preventing Cancer Without Killing Cells

Date:
April 1, 2007
Source:
European Molecular Biology Organization
Summary:
Inducing senescence in aged cells may be sufficient to guard against spontaneous cancer development. It was previously unknown whether cellular senescence or programmed cell death -- apoptosis -- was the more important safeguard mechanism for suppressing tumours arising from dysfunctional telomeres.

Inducing senescence in aged cells may be sufficient to guard against spontaneous cancer development, according to a paper published online this week in EMBO reports. It was previously unknown whether cellular senescence or programmed cell death -- apoptosis -- was the more important safeguard mechanism for suppressing tumours arising from dysfunctional telomeres.

Aged cells have abnormal chromosomes with dysfunctional telomeres -- shorter ends -- that can promote tumorigenesis in the absence of the tumour suppressor p53, and may be related to the higher incidence of cancer in older individuals. However, in the presence of p53, dysfunctional telomeres can induce a permanent arrest of cell growth, known as senescence. Sandy Chang and colleagues studied mutant mice with dysfunctional telomeres and copies of the p53 gene that cannot initiate p53-dependent apoptosis but can execute p53-mediated senescence.

The authors found that activating the senescence pathway was sufficient to suppress spontaneous tumorigenesis. Their findings suggest that, by halting cellular proliferation, p53-mediated senescence may act as an important tumour suppressor mechanism in aged cells.

Reference: Cosme-Blanco W, Shen MF, Lazar AJF, Pathak S, Lozano G, Multani AS, Chang S (2007) Telomere dysfunction suppresses spontaneous tumorigenesis in vivo by initiating p53-dependent cellular senescence. EMBO reports 8: AOP (30 March). DOI: 10.1038/sj.embor.7400937http://www.nature.com/embor/


Story Source:

The above story is based on materials provided by European Molecular Biology Organization. Note: Materials may be edited for content and length.


Cite This Page:

European Molecular Biology Organization. "Preventing Cancer Without Killing Cells." ScienceDaily. ScienceDaily, 1 April 2007. <www.sciencedaily.com/releases/2007/03/070330100712.htm>.
European Molecular Biology Organization. (2007, April 1). Preventing Cancer Without Killing Cells. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2007/03/070330100712.htm
European Molecular Biology Organization. "Preventing Cancer Without Killing Cells." ScienceDaily. www.sciencedaily.com/releases/2007/03/070330100712.htm (accessed October 21, 2014).

Share This



More Health & Medicine News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

CDC Revamps Ebola Guidelines After Criticism

CDC Revamps Ebola Guidelines After Criticism

Newsy (Oct. 21, 2014) The Centers for Disease Control and Prevention have issued new protocols for healthcare workers interacting with Ebola patients. Video provided by Newsy
Powered by NewsLook.com
WHO: Ebola Vaccine Trials to Start a in January

WHO: Ebola Vaccine Trials to Start a in January

AP (Oct. 21, 2014) Tens of thousands of doses of experimental Ebola vaccines could be available for "real-world" testing in West Africa as soon as January as long as they are deemed safe in soon to start trials, the World Health Organization said Tuesday. (Oct. 21) Video provided by AP
Powered by NewsLook.com
First-Of-Its-Kind Treatment Gives Man Ability To Walk Again

First-Of-Its-Kind Treatment Gives Man Ability To Walk Again

Newsy (Oct. 21, 2014) A medical team has for the first time given a man the ability to walk again after transplanting cells from his brain onto his severed spinal cord. Video provided by Newsy
Powered by NewsLook.com
CDC Issues New Ebola Guidelines for Health Workers

CDC Issues New Ebola Guidelines for Health Workers

Reuters - US Online Video (Oct. 21, 2014) The U.S. Centers for Disease Control and Prevention has set up new guidelines for health workers taking care of patients infected with Ebola. Linda So reports. Video provided by Reuters
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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