c-Jun N-terminal kinase 1 defective CD4+CD25+FoxP3+ cells prolong islet allograft survival in diabetic mice.

c-Jun N-terminal kinase 1 defective CD4+CD25+FoxP3+ cells prolong islet allograft survival in diabetic mice.
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DOI:
10.1038/s41598-018-21477-9
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发表时间:
2018-02-19
期刊:
影响因子:
4.6
通讯作者:
Vankayalapati R
Vankayalapati R
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Tripathi D;Cheekatla SS;Paidipally P;Radhakrishnan RK;Welch E;Thandi RS;Tvinnereim AR;Vankayalapati R

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CD4+CD25+FoxP3+细胞(Tregs)抑制同种异体移植物的炎性免疫反应。在这里,我们发现同种异体胰岛与c-jun氨基末端激酶1(JNK1)信号缺陷的Tregs共移植可以延长化学诱导糖尿病小鼠(CDM)肝实质内同种异体胰岛移植的存活时间。过继转导的JNK1Tregs在肝实质中存活时间较长,而野生型(WT)−/−的存活时间较长。JNK1−/−树突状细胞具有抗凋亡和表达抗凋亡分子的功能。与−/−树突状细胞相比,JNK1WT树突状细胞表面表达更高水平的淋巴细胞活化基因-3分子(LAG-3),并产生更多的抗炎细胞因子IL-10。JNK1−/−Tregs比WT Tregs更有效地抑制肝脏同种异体免疫反应。JNK1Tregs能抑制IL-17和IL-21的产生,而不是WT Treg,这可能是通过促进IL-3的表达和IL-10的产生来实现的。我们的研究确定了JNK1信号在Treg中的一个新的作用,它提高了CDM肝实质中同种异体胰岛移植物的存活率。
CD4+CD25+FoxP3+ cells (Tregs) inhibit inflammatory immune responses to allografts. Here, we found that co-transplantation of allogeneic pancreatic islets with Tregs that are defective in c-Jun N-terminal kinase 1 (JNK1) signaling prolongs islet allograft survival in the liver parenchyma of chemically induced diabetic mice (CDM). Adoptively transferred JNK1−/− but not wild-type (WT) Tregs survive longer in the liver parenchyma of CDM. JNK1−/− Tregs are resistant to apoptosis and express anti-apoptotic molecules. JNK1−/− Tregs express higher levels of lymphocyte activation gene-3 molecule (LAG-3) on their surface and produce higher amounts of the anti-inflammatory cytokine interleukin (IL)-10 compared with WT Tregs. JNK1−/− Tregs inhibit liver alloimmune responses more efficiently than WT Tregs. JNK1−/− but not WT Tregs are able to inhibit IL-17 and IL-21 production through enhanced LAG-3 expression and IL-10 production. Our study identifies a novel role of JNK1 signaling in Tregs that enhances islet allograft survival in the liver parenchyma of CDM.
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