PT - JOURNAL ARTICLE AU - Schiappacasse Cocio, Guido V. AU - Schiappacasse, Enrico D. TI - Is Adjuvant Chemotherapy Efficient in Colon Cancer with High Microsatellite Instability? A Look Towards the Future AID - 10.1158/0008-5472.CAN-18-2991 DP - 2019 Feb 01 TA - Cancer Research PG - 441--444 VI - 79 IP - 3 4099 - http://cancerres.aacrjournals.org/content/79/3/441.short 4100 - http://cancerres.aacrjournals.org/content/79/3/441.full SO - Cancer Res2019 Feb 01; 79 AB - The high microsatellite instability (MSI-H) is frequently observed in localized colorectal adenocarcinoma. MSI-H is a good prognostic factor in nonmetastatic colon adenocarcinoma. However, MSI-H is not a predictive factor because it is not related with better survival in patients with colon cancer with adjuvant chemotherapy. MSI-H should be a predictive factor because it is associated with a higher expression of enzymes, which are inhibited by cytotoxic agents. Here, we analyze this controversy. We conclude MSI-H is not a predictive factor because the adjuvant therapy based on traditional cytotoxic agents does not act on either immune signaling pathways or BRAF mutation.