Immune deficiency CD8 + T cell function improving drugs, cancer therapeutic drugs and prophylactic or therapeutic agents for metabolic syndrome

摘要

PROBLEM TO BE SOLVED: To provide a technique that improves immune exhaustion, treats cancer and prevents or treats metabolic syndrome.SOLUTION: This invention relates to a function improving agent for an immune exhaustion CD8+T cell, comprising a biguanide antidiabetic selected from the group consisting of phenformin, buformin and metformin.