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Identification of a small molecular insulin receptor agonist with potent antidiabetes activity

Academic Article
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Overview

authors

  • Qiang, G.
  • Xue, S.
  • Yang, J. J.
  • Du, G.
  • Pang, X.
  • Li, X.
  • Goswami, D.
  • Griffin, Patrick
  • Ortlund, E. A.
  • Chan, C. B.
  • Ye, K.

publication date

  • April 2014

journal

  • Diabetes  Journal

abstract

  • Insulin replacement therapy is a widely adopted treatment for all patients with type 1 diabetes and some with type 2 diabetes. However, injection of insulin has suffered from problems such as tissue irritation, abscesses, discomfort, and inconvenience. The use of orally bioactive insulin mimetics thus represents an ideal treatment alternative. Here we show that a chaetochromin derivative (4548-G05) acts as a new nonpeptidyl insulin mimetic. 4548-G05 selectively activates an insulin receptor (IR) but not insulin-like growth factor receptor-I or other receptor tyrosine kinases. Through binding to the extracellular domain of the IR, 4548-G05 induces activation of the receptor and initiates the downstream Akt and extracellular signal-related kinase pathways to trigger glucose uptake in C2C12 myotubes. Moreover, it displays a potent blood glucose-lowering effect when administrated orally in normal, type 1 diabetic, and type 2 diabetic mice models. Therefore, 4548-G05 may represent a novel pharmacological agent for antidiabetes drug development.

subject areas

  • Animals
  • Blood Glucose
  • CHO Cells
  • Cricetulus
  • Diabetes Mellitus, Experimental
  • Hypoglycemic Agents
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Naphthoquinones
  • Receptor, Insulin
  • Signal Transduction
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Identity

PubMed Central ID

  • PMC3964510

International Standard Serial Number (ISSN)

  • 0012-1797

Digital Object Identifier (DOI)

  • 10.2337/db13-0334

PubMed ID

  • 24651808
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Additional Document Info

start page

  • 1394

end page

  • 1409

volume

  • 63

issue

  • 4

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