Specialized pro-resolvin mediators induce cell growth and improve wound repair in intestinal epithelial Caco-2 cell cultures

C.E. Storniolo , M. Pequera , A. Vilariño , J.J. Moreno
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引用次数: 1

Abstract

Specialized pro-resolvin mediators (SPMs) are a superfamily of bioactive molecules synthesized from polyunsaturated fatty acids (arachidonic, eicosapentaenoic and docosahexaenoic acids) that include resolvins, protectins and maresins. These metabolites are important to control the resolution phase of inflammation and the epithelial repair, which is essential in restoring the mucosal barriers. Unfortunately, the effects of SPMs on intestinal epithelial cell growth remain poorly understood. Caco-2 cell were used as intestinal epithelial cell model. Cell growth/DNA synthesis, cell signalling pathways, western blot and wound repair assay were performed. Our data demonstrated that SPMs such as lipoxin LxA4, resolvin (Rv) E1, RvD1, protectin D 1 and maresin 1 were able to enhance intestinal epithelial Caco-2 cell growth and DNA synthesis. Furthermore, our results provide evidence that these effects of RvE1 and RvD1 were associated with a pertussis toxin-sensitive G protein-coupled receptor, and that leukotriene B4 receptor 2 could be involved, at least in part, in these effects of RvE1/RvD1. Moreover, these mitogenic effects induced by SPMs were dependent on the ERK 1/2 and p38 MAPK pathways as well as phospholipase C and protein kinase C activation. Thus, these mitogenic effects of RvE1/RvD1 on intestinal epithelial cells could be involved in this signalling circuit involved in wounded epithelium and the catabasis process.

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在肠上皮Caco-2细胞培养中,特殊的促溶解蛋白介质诱导细胞生长并改善伤口修复
特殊的前分解蛋白介质(SPMs)是由多不饱和脂肪酸(花生四烯酸、二十碳五烯酸和二十二碳六烯酸)合成的生物活性分子超家族,包括分解蛋白、保护蛋白和蛋白。这些代谢物对控制炎症的消退阶段和上皮修复是重要的,这是恢复粘膜屏障所必需的。不幸的是,SPMs对肠上皮细胞生长的影响仍然知之甚少。以Caco-2细胞作为肠上皮细胞模型。进行细胞生长/DNA合成、细胞信号通路、western blot和伤口修复实验。我们的数据表明,脂素LxA4、resolvin (Rv) E1、RvD1、protectin d1和marsin 1等SPMs能够促进肠上皮Caco-2细胞的生长和DNA合成。此外,我们的研究结果提供了证据,证明RvE1和RvD1的这些作用与百日咳毒素敏感的G蛋白偶联受体有关,白三烯B4受体2可能至少部分参与了RvE1/RvD1的这些作用。此外,SPMs诱导的这些有丝分裂效应依赖于ERK 1/2和p38 MAPK途径以及磷脂酶C和蛋白激酶C的激活。因此,RvE1/RvD1对肠上皮细胞的有丝分裂作用可能参与了损伤上皮细胞的信号通路和脱落过程。
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来源期刊
Prostaglandins, leukotrienes, and essential fatty acids
Prostaglandins, leukotrienes, and essential fatty acids Clinical Biochemistry, Endocrinology, Diabetes and Metabolism
CiteScore
5.30
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0.00%
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0
审稿时长
64 days
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