Ushering in Liquid Biopsy for the Microsatellite Status: Advantages and Caveats.

Wang, Linghua; Ajani, Jaffer A · Clin Cancer Res · 2019

editorial · Level V

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Abstract

Microsatellite instable tumors often respond to immune checkpoint blockade (ICB), however, tumor tissue is unavailable/insufficient in some patients. Two groups are reporting a blood-based assessment of the microsatellite status validated in tumor tissue and by clinical benefit in patient receiving ICB. Both approaches are highly appealing with a few caveats.<i>See related articles by Georgiadis et al., p. 7024, and Willis et al., p. 7035</i>.

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