Font Size
A
A
A

Definition of Tumor suppressor gene

Tumor suppressor gene: A protective gene that normally limits the growth of tumors. When a tumor suppressor gene is mutated (altered), it may fail to keep a cancer from growing.

BRCA1, an example of a tumor suppressor gene, was the first breast cancer gene to be identified; mutated forms of this gene are responsible for some cases of inherited breast cancer, especially those that occur in younger women.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=11940
Last Editorial Review: 9/20/2012

Medical Dictionary Definitions A - Z

Search Medical Dictionary





Medical Dictionary