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Gut:SLAMF4对肠道病原体的免疫保护

2017-05-10 zhangfan MedSci原创

SLAMF4是肠道免疫细胞,有助于防止肠道致病菌其表达依赖于肠道菌群的存在。SLAMF4是宿主免疫细胞和肠道菌群之间的相互作用的结果

宿主免疫细胞和肠道菌群之间的相互作用对肠道的完整性和功能至关重要。这些相互作用如何调节免疫细胞在肠道中的反应仍然是一个未解之谜。先前的研究表明信号淋巴细胞活化分子家族成员4 (SLAMF4)是一种肠道免疫调节剂,近日研究人员对SLAMF4的生成以及在肠道免疫中的作用进行了研究。

研究人员利用小鼠和人类细胞研究SLAMF4的表达及作用,研究发现SLAMF4是小鼠和人类肠道免疫细胞的选择性标记物。SLAMF4诱导在肠黏膜直接发生,不涉及肠相关淋巴组织。肠道细菌代谢产物,特别是肠道厌氧菌和肠道常驻的抗原提呈细胞(APC)tnlg8a是诱导肠道SLAMF4的关键因素。研究发现SLAMF4表达的缺失会导致小鼠口腔病原菌感染易感性增加,最终导致小鼠过早死亡。

研究表明SLAMF4是肠道免疫细胞,有助于防止肠道致病菌其表达依赖于肠道菌群的存在。SLAMF4是宿主免疫细胞和肠道菌群之间的相互作用的结果。

原始出处:


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    2017-12-30 gaoxiaoe
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    2017-06-11 收获你的美

    学习了谢谢分享

    0

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    2017-05-19 lxg951
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    2017-05-12 小M医师

    老年人畸形的程度是不是相对较轻,不然经过多年的岁月多少还是会有异常的

    0

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    2017-05-12 xue8605

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