PMID- 32473019 OWN - NLM STAT- MEDLINE DCOM- 20210104 LR - 20210104 IS - 1945-7170 (Electronic) IS - 0013-7227 (Linking) VI - 161 IP - 8 DP - 2020 Aug 1 TI - RIPK2 Dictates Insulin Responses to Tyrosine Kinase Inhibitors in Obese Male Mice. LID - bqaa086 [pii] LID - 10.1210/endocr/bqaa086 [doi] AB - Tyrosine kinase inhibitors (TKIs) used in cancer are also being investigated in diabetes. TKIs can improve blood glucose control in diabetic cancer patients, but the specific kinases that alter blood glucose or insulin are not clear. We sought to define the role of Receptor Interacting Serine/Threonine Kinase 2 (RIPK2) in mouse models of insulin resistance. We tested the TKI gefitinib, which inhibits RIPK2 activity, in wild-type (WT), Nod1-/-, Nod2-/-, and Ripk2-/- mice fed an obesogenic high-fat diet. Gefitinib lowered blood glucose during a glucose tolerance test (GTT) in a nucleotide-binding oligomerization domain (NOD)-RIPK2-independent manner in all obese mice. However, gefitinib lowered glucose-stimulated insulin secretion only in obese Ripk2-/- mice. Gefitinib had no effect on insulin secretion in obese WT, Nod1-/-, or Nod2-/- mice. Hence, genetic deletion of Ripk2 promoted the insulin-sensitizing potential of gefitinib, since this TKI lowered both blood glucose and insulin only in Ripk2-/- mice. Gefitinib did not alter the inflammatory profile of pancreas, adipose, liver, or muscle tissues in obese Ripk2-/- mice compared with obese WT mice. We also tested imatinib, a TKI that does not inhibit RIPK2 activity, in obese WT mice. Imatinib lowered blood glucose during a GTT, consistent with TKIs lowering blood glucose independently of RIPK2. However, imatinib increased glucose-stimulated insulin secretion during the glucose challenge. These data show that multiple TKIs lower blood glucose, where actions of TKIs on RIPK2 dictate divergent insulin responses, independent of tissue inflammation. Our data show that RIPK2 limits the insulin sensitizing effect of gefitinib, whereas imatinib increased insulin secretion. CI - (c) Endocrine Society 2020. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Duggan, Brittany M AU - Duggan BM AD - Department of Biochemistry and Biomedical Sciences and Farncombe Family Digestive Health Research Institute, Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada. FAU - Cavallari, Joseph F AU - Cavallari JF AD - Department of Biochemistry and Biomedical Sciences and Farncombe Family Digestive Health Research Institute, Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada. FAU - Foley, Kevin P AU - Foley KP AD - Department of Biochemistry and Biomedical Sciences and Farncombe Family Digestive Health Research Institute, Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada. FAU - Barra, Nicole G AU - Barra NG AD - Department of Biochemistry and Biomedical Sciences and Farncombe Family Digestive Health Research Institute, Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada. FAU - Schertzer, Jonathan D AU - Schertzer JD AD - Department of Biochemistry and Biomedical Sciences and Farncombe Family Digestive Health Research Institute, Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, Ontario, Canada. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Endocrinology JT - Endocrinology JID - 0375040 RN - 0 (Blood Glucose) RN - 0 (Insulin) RN - 0 (Nod1 Signaling Adaptor Protein) RN - 0 (Nod1 protein, mouse) RN - 0 (Nod2 Signaling Adaptor Protein) RN - 0 (Nod2 protein, mouse) RN - 0 (Protein Kinase Inhibitors) RN - EC 2.7.11.1 (Receptor-Interacting Protein Serine-Threonine Kinase 2) RN - EC 2.7.11.1 (Ripk2 protein, mouse) RN - S65743JHBS (Gefitinib) SB - IM MH - Adiposity/drug effects/genetics MH - Animals MH - Blood Glucose/drug effects/genetics/metabolism MH - Diet, High-Fat MH - Gefitinib/pharmacology MH - Insulin/metabolism MH - Insulin Resistance/genetics MH - Insulin Secretion/*drug effects/*genetics MH - Insulin-Secreting Cells/drug effects/metabolism MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Mice, Obese MH - Nod1 Signaling Adaptor Protein/physiology MH - Nod2 Signaling Adaptor Protein/physiology MH - Obesity/etiology/genetics/*metabolism MH - Protein Kinase Inhibitors/*pharmacology MH - Receptor-Interacting Protein Serine-Threonine Kinase 2/*physiology MH - Signal Transduction/drug effects/genetics OTO - NOTNLM OT - diabetes OT - insulin resistance OT - metabolic inflammation OT - obesity OT - tyrosine kinase inhibitors EDAT- 2020/05/31 06:00 MHDA- 2021/01/05 06:00 CRDT- 2020/05/31 06:00 PHST- 2020/04/03 00:00 [received] PHST- 2020/05/22 00:00 [accepted] PHST- 2020/05/31 06:00 [pubmed] PHST- 2021/01/05 06:00 [medline] PHST- 2020/05/31 06:00 [entrez] AID - 5849113 [pii] AID - 10.1210/endocr/bqaa086 [doi] PST - ppublish SO - Endocrinology. 2020 Aug 1;161(8):bqaa086. doi: 10.1210/endocr/bqaa086.