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Sci Transl med:潜在治疗靶标,ASL新发病机制或被发现!

2019-12-30 王芳 生物探索

一直以来,科学家都尝试从各方面寻找导致肌萎缩侧索硬化症的原因,从而对症下药。12月18日,发表在《Science Translational Medicine》的一份新研究报告让人们对ALS发病机制有了更进一步的了解。

肌萎缩侧索硬化症(ALS,或称运动神经元病、渐冻症)与癌症、艾滋病一起被世界卫生组织列为“世界五大疑难杂症”,并且目前尚无治愈的可能。据统计,截至2010年底,中国就已经有大约20万ALS患者,患病人数每年将新增1.8万人,而其中大约80%的患者会在发病后3到5年内死亡。

尽管肌萎缩侧索硬化症的病因病理尚不明确,但最近发表在国际前沿期刊上的两篇报告再一次增强了人们抗击ALS的信心,给患者带来了新希望。

一直以来,科学家都尝试从各方面寻找导致肌萎缩侧索硬化症的原因,从而对症下药。12月18日,发表在《Science Translational Medicine》的一份新研究报告让人们对ALS发病机制有了更进一步的了解。

该报告指出,microRNA可能在ALS病理生理中起作用,miR-218通过调节钾通道Kv10.1来控制神经元活性,并且在ALS患者的运动神经元中miR-218的表达降低。

在实验过程中,研究人员发现,miR-218在健康的人类运动神经元中含量很高,但是在ALS运动神经元中却被下调,而它的mRNA靶点则相应地被上调(抑制)。随后,研究人员筛选了数千个ALS基因组,并鉴定了人类miR-218-2序列中的六个罕见变体,发现miR-218基因变异体无法调节神经元活性,也就是说,这种小内源性RNA对于神经元健壮性非常重要。

研究人员表示,运动神经元中的miR-218活性可能易受人ALS衰竭的影响,这表明miR-218可能是肌萎缩侧索硬化症的潜在治疗靶标。

原始出处:Irit Reichenstein, Chen Eitan, Sandra Diaz-Garcia, et al. Human genetics and neuropathology suggest a link between miR-218 and amyotrophic lateral sclerosis pathophysiology. Sci Transl med. 18 Dec 2019

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    2020-10-25 bsmagic9140
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    2020-01-01 zhaojie88
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    2020-01-01 lq1771
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  7. [GetPortalCommentsPageByObjectIdResponse(id=1657284, encodeId=c2de165e2844e, content=<a href='/topic/show?id=3ca31e71903' target=_blank style='color:#2F92EE;'>#TRA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17719, encryptionId=3ca31e71903, topicName=TRA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=757b24868428, createdName=bsmagic9140, createdTime=Sun Oct 25 13:33:00 CST 2020, time=2020-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1909454, encodeId=c98b1909454b1, content=<a href='/topic/show?id=be1864e205a' target=_blank style='color:#2F92EE;'>#治疗靶标#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64720, encryptionId=be1864e205a, topicName=治疗靶标)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a885259, createdName=yourmama, createdTime=Sat Feb 01 23:33:00 CST 2020, time=2020-02-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2067490, encodeId=fdda206e49000, content=<a href='/topic/show?id=d0841e75535' target=_blank style='color:#2F92EE;'>#Transl#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17755, encryptionId=d0841e75535, topicName=Transl)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/101173734/363C99735735B7F4CB11D5F78F580525/100, createdBy=aab22500211, createdName=ms3025846204744509, createdTime=Fri Oct 09 03:33:00 CST 2020, time=2020-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352848, encodeId=7ecc13528483c, content=<a href='/topic/show?id=827d9996311' target=_blank style='color:#2F92EE;'>#靶标#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99963, encryptionId=827d9996311, topicName=靶标)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Wed Jan 01 07:33:00 CST 2020, time=2020-01-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1519264, encodeId=f9b71519264e3, content=<a href='/topic/show?id=2082286e7b' target=_blank style='color:#2F92EE;'>#ASL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2867, encryptionId=2082286e7b, topicName=ASL)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c1a311248160, createdName=lq1771, createdTime=Wed Jan 01 07:33:00 CST 2020, time=2020-01-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1610183, encodeId=57391610183fc, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Wed Jan 01 07:33:00 CST 2020, time=2020-01-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1039177, encodeId=675110391e7ba, content=机制研究离临床仍然有距离,不过与临床结合思考,仍然有帮助的,不能仅仅是纯临床思维,转化思维同样重要, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=肿肿, createdTime=Mon Dec 30 19:33:00 CST 2019, time=2019-12-30, status=1, ipAttribution=)]
    2019-12-30 肿肿

    机制研究离临床仍然有距离,不过与临床结合思考,仍然有帮助的,不能仅仅是纯临床思维,转化思维同样重要

    0

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