Обсуждение:Антагонист рецептора интерлейкина 1
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--CopperKettle 06:52, 10 октября 2009 (UTC)Maedler et al. (2004) observed decreased expression of IL1RN in human pancreatic beta cells of patients with type 2 diabetes (see 125853) compared with nondiabetic individuals. In vitro, chronic exposure of human islets to leptin (164160) decreased beta cell production of IL1RN and induced IL1-beta release from the islet preparation, leading to impaired beta cell function, caspase-3 (600636) activation, and apoptosis. Exogenous addition of IL1RN protected cultured human islets from the deleterious effects of leptin; antagonizing IL1RN by introduction of small interfering RNA (siRNA) into human islets led to caspase-3 activation, DNA fragmentation, and impaired beta cell function. Maedler et al. (2004) concluded that IL1RN is expressed in the human beta cell and provides localized protection against leptin- and glucose-induced islet IL1-beta