Microsatellite Instability

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Microsatellite Instability
TermMicrosatellite Instability
Short definitionMicrosatellite Instability - (pronounced) (MY-kroh-SA-teh-lite in-stuh-BIH-lih-tee) change that occurs in certain cells (such as cancer cells) in which the number of repeating DNA bases in a microsatellite (a short, repeating sequence of DNA) is different than the inheritance of the microsatellite. Microsatellite instability can be caused by errors that are not corrected when DNA is copied into a cell. 
TypeCancer terms
SpecialtyOncology
LanguageEnglish
SourceNCI
Comments


Microsatellite Instability - (pronounced) (MY-kroh-SA-teh-lite in-stuh-BIH-lih-tee) change that occurs in certain cells (such as cancer cells) in which the number of repeating DNA bases in a microsatellite (a short, repeating sequence of DNA) is different than the inheritance of the microsatellite. Microsatellite instability can be caused by errors that are not corrected when DNA is copied into a cell. It is most commonly found in colon cancer, stomach cancer, and endometrial cancer, but can also be found in many other cancers. Knowing if a cancer has microsatellite instability can help plan the best treatment. Also called MSI

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