Eur Arch Otorhinolaryngol:牙髓干细胞分化为内耳毛细胞能力的研究

2021-05-30 AlexYang MedSci原创

在哺乳动物中,耳蜗毛细胞的生成大多发生在胚胎发育期,细胞在出生后不久就会成熟。与非哺乳动物不同的是,哺乳动物的耳蜗毛细胞在出生后不能再生,如果出生后发生耳蜗毛细胞损伤,就可能引起永久性的听力损失,即感

在哺乳动物中,耳蜗毛细胞的生成大多发生在胚胎发育期,细胞在出生后不久就会成熟。与非哺乳动物不同的是,哺乳动物的耳蜗毛细胞在出生后不能再生,如果出生后发生耳蜗毛细胞损伤,就可能引起永久性的听力损失,即感觉神经性听力损失(SNHL)。导致SNHL的其他病症包括耳蜗感觉上皮听觉神经退化。人工耳蜗是临床上治疗深度SNHL患者的唯一方法,设备可通过残余的螺旋神经节(SGNs)传递听觉信号;因此,SGNs的数量对植入物的效果至关重要。 感觉神经性听力损失(SNHL)通常是由于耳蜗细胞死亡或功能障碍造成的。然而,再生医学,如干细胞疗法,已成为治疗许多疾病(包括听力损失)的一个很有前景的工具。 近期,有研究人员确定了DPSCs是否能在体外分化成耳蜗毛细胞。 研究人员用含有碱性成纤维细胞生长因子(bFGF)和表皮生长因子(EGF)的培养基将来自人类第三磨牙牙髓的DPSCs诱导成NSCs,为期7天。然后用含有EGF和IGF-1的培养基诱导成耳蜗毛细胞,为期14天。他们使用了神经上皮蛋白标记物nestin和耳蜗毛细胞标记物myosin VIIa作为细胞分化的标记物。显微镜下表达阳性标记的细胞即证实已经分化为

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    2021-08-21 jxrzshh
  2. [GetPortalCommentsPageByObjectIdResponse(id=1669885, encodeId=f14a1669885ab, content=<a href='/topic/show?id=c7ca6e660ab' target=_blank style='color:#2F92EE;'>#牙髓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67660, encryptionId=c7ca6e660ab, topicName=牙髓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=5eeb26562774, createdName=jxrzshh, createdTime=Sat Aug 21 05:51:34 CST 2021, time=2021-08-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1025565, encodeId=0c4110255658a, 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=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=独孤立克, createdTime=Wed Jun 02 12:51:34 CST 2021, time=2021-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1544915, encodeId=4cdd15449155f, content=<a href='/topic/show?id=f5576e67147' target=_blank style='color:#2F92EE;'>#牙髓干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67671, encryptionId=f5576e67147, topicName=牙髓干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=841913671773, createdName=ms6519009802973839, createdTime=Tue Jun 01 03:51:34 CST 2021, time=2021-06-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1570289, encodeId=f85215e0289e3, content=<a href='/topic/show?id=a66ae7809b1' target=_blank style='color:#2F92EE;'>#细胞分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77809, encryptionId=a66ae7809b1, topicName=细胞分化)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=653c15636865, createdName=karmond, createdTime=Tue Jun 01 03:51:34 CST 2021, time=2021-06-01, status=1, ipAttribution=)]
    2021-06-02 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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