At present, the regulatory mechanisms and signaling pathways involved in the CPT family are the main focus of upstream studies, as the classical signaling pathways Wnt/β-catenin, NF-κB, mTOR, or transcription factors, miRNAs, etc., affect the expression of CPT family members at the transcriptional level and then play a role in promoting or suppressing cancer by affecting the FAO process, while there are relatively few studies on their protein levels. This evidence concerns the gene MTOR and cancer.