Abstract
Tumors of the digestive system are currently one of the leading causes of cancer-related
death worldwide. Despite considerable progress in tumor immunotherapy, the prognosis for
most patients remains poor. In the tumor microenvironment (TME), tumor cells attain immune escape
through immune editing and acquire immune tolerance. The mevalonate pathway and autophagy
play important roles in cancer biology, antitumor immunity, and regulation of the TME.
In addition, there is metabolic crosstalk between the two pathways. However, their role in promoting
immune tolerance in digestive system tumors has not previously been summarized. Therefore,
this review focuses on the cancer biology of the mevalonate pathway and autophagy, the regulation
of the TME, metabolic crosstalk between the pathways, and the evaluation of their efficacy as
targeted inhibitors in clinical tumor immunotherapy.
Keywords:
Mevalonate pathway, autophagy, metabolic crosstalk, antitumor immunotherapy, tumor microenvironment, digestive system.
Graphical Abstract
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