Histone deacetylase 6 regulates insulin signaling in pancreatic β cells

• Inoue, Hiroyuki

• Asahara, Shun-ichiro

• Sugiura, Yumiko

• Kawada, Yukina

• Imai, Asuka

• Hara, Chisako

• Kanno, Ayumi

• Kimura-Koyanagi, Maki

• Kido, Yoshiaki

Abstract

The reduction of pancreatic β cell mass is one of the key factors for the onset of type 2 diabetes. Many reports have indicated that insulin signaling is important for type 2 diabetes, but the mechanism by which insulin signaling is altered in pancreatic β cells remains unclear. This study was designed to examine the role of histone deacetylases (HDACs) in the regulation of insulin signaling in pancreatic β cells. We found that insulin signaling was downregulated by inhibition of HDAC6. HDAC6 expression was specifically observed in pancreatic β cells and was decreased in the pancreatic islets of a type 2 diabetes mouse model. When a mouse pancreatic β cell line (MIN6 cells) was treated with palmitic acid to mimic the effect of a high-fat diet on pancreatic β cells, HDAC6 was imported into the nucleus. These results suggest that HDAC6 plays an important role in the regulation of insulin signaling in pancreatic β cells. Therefore, clarifying the regulation of insulin signaling by HDAC6 may be a valuable approach for the treatment of type 2 diabetes.

Journal

• Biochemical and Biophysical Research Communications

  Biochemical and Biophysical Research Communications 534 896-901, 2021-01-01

  Elsevier

Keywords

• Type 2 diabetes mellitus
• Pancreatic beta cells
• Insulin signaling
• HDAC6
• Histone deacetylase

Details

• CRID: 1050575520345162752
• NII Article ID: 120007033584
• NII Book ID: AA00564395
• HANDLE: 20.500.14094/90008252
• ISSN: 0006291X
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles