Interestingly, genes encoding ubiquitin ligases (Trim63, Fbxo32/MAFBx, Fbxo31, and Fbxo30/Musa1) that target muscle proteins and serve as markers of muscle atrophy were found to be transcriptionally upregulated in the gastrocnemius muscles from the tumor‐bearing mice (Figure 1G). Here, FBXO31 is linked to neoplasm.