Gut:单核细胞源性巨噬细胞可缓解术后肠道炎症和肠道梗阻

2017-06-15 zhangfan MedSci原创

单核细胞来源的巨噬细胞在手术创伤后肠道内环境稳态恢复中发挥了关键作用

研究认为术后肠梗阻(POI)是腹部手术患者髓系细胞浸润肠肌层(Me)导致的。近期研究人员在小鼠模型中研究了肠道手术(IM)浸润单核细胞对POI的诱导作用,以确定单核细胞在组织损伤、肠功能障碍或胃肠道(GI)运动功能恢复中发挥的作用。

研究人员在缺陷单核细胞组织迁移小鼠模型(CC类趋化因子受体2, Ccr2-/- 小鼠)中模拟IM,通过变异小鼠和野生型(WT)小鼠的比较研究单核细胞和单核细胞来源的巨噬细胞的(MφS)在诱导和缓解Me炎症中的作用。

研究发现, IM诱导的GI功能障碍和炎症在WT和Ccr2-/异小鼠中差异不显著,但变异小鼠肠功能障碍恢复需要较长的时间,这与中性粒细胞介导的免疫病理学增加和神经肌肉功能持续受损相关。在恢复期,单核细胞来源的巨噬细胞有助于缓解炎症相关特征。研究发现,骨髓移植或巨噬细胞集落刺激因子1治疗可以增强单核细胞浸润、巨噬细胞分化并改善胃肠道蠕动能力。

研究认为单核细胞来源的巨噬细胞在手术创伤后肠道内环境稳态恢复中发挥了关键作用,但过量的单核细胞会增加中性粒细胞介导的免疫病理,延长术后肠梗阻的临床结果,该研究的未来治疗应用将集中于如何提高巨噬细胞生理功能修复方面。

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    2017-06-15 虈亣靌

    学习了,受益匪浅。

    0

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    2017-06-15 中医痴

    不错的,学习了,谢谢分享!

    0