Effects of insulin on pharmacodynamics of immunosuppressive drugs in human peripheral T lymphocytes

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K08081
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Medical pharmacy
• Research Institution: Tokyo University of Pharmacy and Life Science
• Principal Investigator: Hirano Toshihiko 東京薬科大学, 薬学部, 教授 (90173252)
• Research Collaborator: 杉山 健太郎 東京薬科大学, 薬学部, 准教授
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 腎移植 / インスリン / 末梢血単核細胞（PBMC） / 免疫抑制薬 / 慢性腎不全患者 / 薬物耐性 / 個別医療

Outline of Final Research Achievements

Diabetes mellitus is one of the most common causes of chronic renal failure. Clinical efficacies of immunosuppressive drugs are possibly affected by insulin after renal transplantation. We investigated the effects of insulin on responses of mitogen-activated human peripheral-blood mononuclear cells (PBMCs) to several immunosuppressive drugs. The IC50 values of immunosuppressive drugs against the mitogen-activated PBMCs in the presence of insulin were significantly higher than those of the drug without insulin (P<0.05). Insulin receptors were detected on the mitogen-activated CD4+/CD14+ cells in PBMCs. insulin-receptor antagonist recovered the effect of immunosuppressive drugs. These results indicate that insulin attenuates suppressive efficacies of immunosuppressive drugs against mitogen-activated proliferation of human PBMCs, possibly via insulin receptors. Insulin used in patients accompanying diabetes mellitus is suggested to attenuate efficacies of immunosuppressive drugs.

Free Research Field

臨床薬理学