TRIM63 and cancer: Interestingly, a highly significant negative correlation was found between the level of lactobacilli in the cecal content and the atrophy marker expression in the gastrocnemius muscle (Atrogin‐1, MurF1, LC3 and Cathepsin L).9 Moreover, they impressively demonstrated that cancer cachexia was associated with profound alterations of the gut microbiota in two animal models.