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Tissue-specific insulin resistance in mice with mutations in the insulin receptor, IRS-1, and IRS-2

Open access
Kido, Yoshiaki, Burks, Deborah J., Withers, Dominic, Bruning, Jens C., Kahn, C. Ronald, White, Morris F., Accili, Domenico·2000·Journal of Clinical Investigation

Abstract

Type 2 diabetes is characterized by abnormalities of insulin action in muscle, adipose tissue, and liver and by altered beta-cell function. To analyze the role of the insulin signaling pathway in these processes, we have generated mice with combined heterozygous null mutations in insulin receptor (ir), insulin receptor substrate (irs-1), and/or irs-2. Diabetes developed in 40% of ir/irs-1/irs-2(+/-), 20% of ir/irs-1(+/-), 17% of ir/irs-2(+/-), and 5% of ir(+/-) mice. Although combined heterozygosity for ir/irs-1(+/-) and ir/irs-2(+/-) results in a similar number of diabetic mice, there are significant differences in the underlying metabolic abnormalities. ir/irs-1(+/-) mice develop severe insulin resistance in skeletal muscle and liver, with compensatory beta-cell hyperplasia. In contrast, ir/irs-2(+/-) mice develop severe insulin resistance in liver, mild insulin resistance in skeletal muscle, and modest beta-cell hyperplasia. Triple heterozygotes develop severe insulin resistance in skeletal muscle and liver and marked beta-cell hyperplasia. These data indicate tissue-specific differences in the roles of IRSs to mediate insulin action, with irs-1 playing a prominent role in skeletal muscle and irs-2 in liver. They also provide a practical demonstration of the polygenic and genetically heterogeneous interactions underlying the inheritance of type 2 diabetes.

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Metadata

Authors
Kido, Y., Burks, D. J., Withers, D., Bruning, J. C., Kahn, C. R., White, M. F., & Accili, D.
Venue
Journal of Clinical Investigation
Published
2000-01-15
Volume
105
Issue
2
Pages
199-205
ISSN
0021-9738 (ISSN-L)
OpenAlex
W1999123584
Cited by
492
References
2
FWCI
13.74
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Tissue-specific insulin resistance in mice with mutations in the insulin receptor, IRS-1, and IRS-2. https://app.cochat.ai/papers/10.1172/jci7917
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Kido, Y., Burks, D. J., Withers, D., Bruning, J. C., Kahn, C. R., White, M. F., & Accili, D. (2000). Tissue-specific insulin resistance in mice with mutations in the insulin receptor, IRS-1, and IRS-2. Journal of Clinical Investigation. https://doi.org/10.1172/jci7917

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.