References
Query Results -- Details
MGI Accession ID: MGI:3528798
J Number: J:96047
Other Accession IDs:
Title: Deletion of Cdkn1b ameliorates hyperglycemia by maintaining compensatory hyperinsulinemia in diabetic mice.
Authors: Uchida T; Nakamura T; Hashimoto N; Matsuda T; Kotani K; Sakaue H; Kido Y; Hayashi Y; Nakayama KI; White MF; Kasuga M
Journal: Nat Med
Volume: 11
Issue: 2
Date: 2005 Feb
Year: 2005
Pages: 175-82
Review Status: Peer Reviewed
Abstract:
The protein p27(Kip1) regulates cell cycle progression in mammals by inhibiting the activity of cyclin-dependent kinases (CDKs). Here we show that p27(Kip1) progressively accumulates in the nucleus of pancreatic beta cells in mice that lack either insulin receptor substrate 2 (Irs2(-/-)) or the long form of the leptin receptor (Lepr(-/-) or db/db). Deletion of the gene encoding p27(Kip1) (Cdkn1b) ameliorated hyperglycemia in these animal models of type 2 diabetes mellitus by increasing islet mass and maintaining compensatory hyperinsulinemia, effects that were attributable predominantly to stimulation of pancreatic beta-cell proliferation. Thus, p27(Kip1) contributes to beta-cell failure during the development of type 2 diabetes in Irs2(-/-) and Lepr(-/-) mice and represents a potential new target for the treatment of this condition.
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