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Blood:RET激活可改善造血干细胞的存活和扩增

2020-07-02 MedSci原创 MedSci原创

通过GDNF/GFRa1激活GFL受体RET可改善LT-HSC体外培养时的存活和扩增和体内移植后的存活情况。

人造血干细胞(HSC)体外培养扩增是一个快速发展的领域,显示出对临床应用的巨大希望。近期研究表明,神经系统和神经胶质家族配体(GFL)是骨髓壁龛中造血存活和自我更新的潜在驱动力,但是,如何将其应用于HSC的维持和扩增尚待探索。

Grey等人揭示了HSCs细胞表面的GFL受体RET在介导持续的细胞生长、抗压力和改善细胞存活中的作用,贯穿了整个体外扩增过程。

用RET配体/共受体复合物GDNF/GFRa1处理HSCs,可提高初次移植时的祖细胞功能,并可提高二次移植时的HSC的长期功能。

最后,研究人员证实,RET驱动多条细胞内信号通路,包括关键信号成员AKT、ERK1/2、NFκB和p53,负责广泛的细胞和遗传反应,进而提高体外培养的细胞生长和存活。

原始出处:

William Grey,et al. Activation of the receptor tyrosine kinase, RET, improves long-term hematopoietic stem cell outgrowth and potency. Blood. June 26,2020.

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    2020-08-31 ysjykql
  2. [GetPortalCommentsPageByObjectIdResponse(id=1913931, encodeId=976a191393198, content=<a href='/topic/show?id=4684153e41f' target=_blank style='color:#2F92EE;'>#RET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15374, encryptionId=4684153e41f, topicName=RET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96d4340, createdName=ysjykql, createdTime=Mon Aug 31 18:06:46 CST 2020, time=2020-08-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1025475, encodeId=bda310254e5af, content=干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=独孤立克, createdTime=Sun Jul 05 17:06:46 CST 2020, time=2020-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1271520, encodeId=4ff512e15205a, content=<a href='/topic/show?id=a0ff950018f' target=_blank style='color:#2F92EE;'>#造血干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95001, encryptionId=a0ff950018f, topicName=造血干细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e729101, createdName=huanbaofeng, createdTime=Sat Jul 04 08:06:46 CST 2020, time=2020-07-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1494738, encodeId=ccfb1494e386e, content=<a href='/topic/show?id=084d9499599' target=_blank style='color:#2F92EE;'>#造血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=94995, encryptionId=084d9499599, topicName=造血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=caed9138962, createdName=俅侠, createdTime=Sat Jul 04 08:06:46 CST 2020, time=2020-07-04, status=1, ipAttribution=)]
    2020-07-05 独孤立克

    干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦

    0

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    2020-07-04 俅侠

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