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Home NEWS Science News

Diabetes drug metformin corrects mitochondrial metabolism in familial cancer disorder

Bioengineer by Bioengineer
November 21, 2016
in Science News
Reading Time: 1 min read
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Individuals with Li-Fraumeni syndrome are at an increased risk for a number of cancers, including breast and bone cancer. Li-Fraumeni syndrome is an inherited cancer disorder caused by mutations in the tumor suppressing protein p53, which are also linked to increases mitochondrial metabolism. It is not clear whether targeting these metabolic changes can effectively reduce the risk of cancer associated with p53 mutations. In this issue of the JCI, research led by Paul Hwang at the National Heart, Lung, and Blood Institute discovered that treatment with the commonly-prescribed diabetes medication metformin treatment blocked increases in mitochondrial metabolism in a mouse model of Li-Fraumeni syndrome, leading to a lower rate of tumor formation and increased survival time. Furthermore, in a pilot study involving Li-Fraumeni patients, metformin treatment produced a similar inhibition of mitochondrial metabolism and activated of anti-proliferation signaling. The finding that this FDA-approved drug can ameliorate abnormal mitochondrial metabolism suggests that it may be a potential strategy for tumor prevention in Li-Fraumeni syndrome.

###

TITLE: Inhibiting mitochondrial respiration prevents cancer in a mouse model of Li-Fraumeni syndrome

AUTHOR CONTACT:

Paul Hwang
National Heart, Lung, and Blood Institute at the National Institutes of Health
[email protected]

View this article at: http://www.jci.org/articles/view/88668?key=512782722c862d9e2538

Media Contact

Elyse Dankoski
[email protected]
@jclinicalinvest

http://www.jci.org

############

Story Source: Materials provided by Scienmag

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