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首页> 外文期刊>Transplant immunology >IL-6 protects pancreatic islet beta cells from pro-inflammatory cytokines-induced cell death and functional impairment in vitro and in vivo.
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IL-6 protects pancreatic islet beta cells from pro-inflammatory cytokines-induced cell death and functional impairment in vitro and in vivo.

机译:IL-6在体外和体内保护胰腺胰岛β细胞免受促炎性细胞因子诱导的细胞死亡和功能损伤。

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摘要

Protection of pancreatic islet beta cells from pro-inflammatory cytokines-induced cell death and functional impairment is a key issue in developing therapeutic interventions of type 1 diabetes mellitus including islet transplantation. The effects of IL-6 on the protection of beta cells in vitro and in vivo were examined. Freshly isolated islets or MIN6 beta cells, when pre-incubated with IL-6, showed significantly higher viabilities measured by MTT assay and FACS analysis of PI stained cells against pro-apoptotic signaling delivered by IL-1beta, TNF-alpha and IFN-gamma. Insulin secretory function was also significantly protected in static culture with glucose and KCl stimulation. In vivo assessment using marginal mass syngeneic islet transplantation in mouse model revealed IL-6 conferred significantly better blood glucose control and graft survival rate over 50 days. Conclusively, IL-6 protects pancreatic islets or beta-cells from inflammatory cytokines-induced cell death and functional impairment bothin vitro and in vivo. This strategy could be exploited in the clinical setting to maintain functional islet mass.
机译:在开发包括胰岛移植在内的1型糖尿病的治疗性干预措施中,保护胰岛β细胞免受促炎性细胞因子诱导的细胞死亡和功能损害是一个关键问题。检查了IL-6在体外和体内对β细胞保护的作用。当与IL-6预孵育时,新鲜分离的胰岛或MIN6 beta细胞显示出显着更高的活力,通过MTT分析和FACS分析,PI染色细胞可抵抗IL-1beta,TNF-α和IFN-γ传递的促凋亡信号。在葡萄糖和氯化钾刺激下的静态培养中,胰岛素分泌功能也得到了显着保护。在小鼠模型中使用边缘同质异基因胰岛移植进行的体内评估显示,IL-6在50天内可显着改善血糖控制和移植物存活率。总之,IL-6可在体外和体内保护胰岛或β细胞免受炎性细胞因子诱导的细胞死亡和功能损害。该策略可在临床中用于维持功能性胰岛的质量。

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