Baidu
map

NATURE:多发性硬化症中髓鞘的动态生成

2019-01-26 海北 MedSci原创

少突胶质细胞将中枢神经系统中的神经纤维包裹在一层特化的细胞膜中,形成髓鞘。髓鞘在多发性硬化症中被免疫系统破坏,但髓鞘被认为可以再生,并且可以恢复神经功能。

少突胶质细胞将中枢神经系统中的神经纤维包裹在一层特化的细胞膜中,形成髓鞘。髓鞘在多发性硬化症中被免疫系统破坏,但髓鞘被认为可以再生,并且可以恢复神经功能。

在脱髓鞘疾病的动物模型中,髓鞘通过新生成的少突胶质细胞再生,并且剩余的成熟少突胶质细胞似乎不参与该过程。鉴于啮齿动物和人类之间少突胶质细胞生成和自适应髓鞘形成动力学的主要差异,目前尚不清楚实验动物模型如何反映人类多发性硬化症的情况。

最近,通过测量来自基因组DNA核试验的14C的整合,研究人员评估了多发性硬化患者中少突胶质细胞产生的动态。

在患有非常具有侵袭性的多发性硬化症的个体中,正常出现的白质中新的少突胶质细胞的产生增加了数倍,但在大多数患有该疾病的受试者中没有。这表明大多数患者中,没有少突胶质细胞新生的固有潜力。

阴影斑块中的少突胶质细胞 - 被认为代表髓鞘再生的薄髓鞘损伤区域 - 在患有多发性硬化症的患者中是原有的。在阴影斑块中缺少新的少突胶质细胞,这表明病变的髓鞘再生短暂或根本不发生,或者多发性硬化症中,髓鞘通过预先存在的,而非新的少突胶质细胞,再生。

因此,该研究表明,多发性硬化症中少突胶质细胞生成动态与预期不同,这可以指导当前的应用和新疗法的开发。


原始出处:

Yeung MSY et al. Dynamics of oligodendrocyte generation in multiple sclerosis. NATURE, 2019; doi: 10.1038/s41586-018-0842-3.


本文系梅斯医学(MedSci)原创编译整理,转载需授权

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1755069, encodeId=7b101e550693f, content=<a href='/topic/show?id=d1011021391e' target=_blank style='color:#2F92EE;'>#髓鞘#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102139, encryptionId=d1011021391e, topicName=髓鞘)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f28436833652, createdName=xiaogang329, createdTime=Sat Aug 03 06:27:00 CST 2019, time=2019-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883552, encodeId=804c18835522f, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Feb 28 06:27:00 CST 2019, time=2019-02-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1889972, encodeId=6e3218899e2d6, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Thu May 30 11:27:00 CST 2019, time=2019-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1983041, encodeId=6dcd1983041ab, content=<a href='/topic/show?id=a7a7e359478' target=_blank style='color:#2F92EE;'>#硬化症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73594, encryptionId=a7a7e359478, topicName=硬化症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Jun 02 02:27:00 CST 2019, time=2019-06-02, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1755069, encodeId=7b101e550693f, content=<a href='/topic/show?id=d1011021391e' target=_blank style='color:#2F92EE;'>#髓鞘#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102139, encryptionId=d1011021391e, topicName=髓鞘)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f28436833652, createdName=xiaogang329, createdTime=Sat Aug 03 06:27:00 CST 2019, time=2019-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883552, encodeId=804c18835522f, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Feb 28 06:27:00 CST 2019, time=2019-02-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1889972, encodeId=6e3218899e2d6, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Thu May 30 11:27:00 CST 2019, time=2019-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1983041, encodeId=6dcd1983041ab, content=<a href='/topic/show?id=a7a7e359478' target=_blank style='color:#2F92EE;'>#硬化症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73594, encryptionId=a7a7e359478, topicName=硬化症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Jun 02 02:27:00 CST 2019, time=2019-06-02, status=1, ipAttribution=)]
    2019-02-28 liye789132251
  3. [GetPortalCommentsPageByObjectIdResponse(id=1755069, encodeId=7b101e550693f, content=<a href='/topic/show?id=d1011021391e' target=_blank style='color:#2F92EE;'>#髓鞘#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102139, encryptionId=d1011021391e, topicName=髓鞘)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f28436833652, createdName=xiaogang329, createdTime=Sat Aug 03 06:27:00 CST 2019, time=2019-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883552, encodeId=804c18835522f, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Feb 28 06:27:00 CST 2019, time=2019-02-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1889972, encodeId=6e3218899e2d6, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Thu May 30 11:27:00 CST 2019, time=2019-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1983041, encodeId=6dcd1983041ab, content=<a href='/topic/show?id=a7a7e359478' target=_blank style='color:#2F92EE;'>#硬化症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73594, encryptionId=a7a7e359478, topicName=硬化症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Jun 02 02:27:00 CST 2019, time=2019-06-02, status=1, ipAttribution=)]
    2019-05-30 jml2009
  4. [GetPortalCommentsPageByObjectIdResponse(id=1755069, encodeId=7b101e550693f, content=<a href='/topic/show?id=d1011021391e' target=_blank style='color:#2F92EE;'>#髓鞘#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102139, encryptionId=d1011021391e, topicName=髓鞘)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f28436833652, createdName=xiaogang329, createdTime=Sat Aug 03 06:27:00 CST 2019, time=2019-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883552, encodeId=804c18835522f, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Feb 28 06:27:00 CST 2019, time=2019-02-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1889972, encodeId=6e3218899e2d6, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Thu May 30 11:27:00 CST 2019, time=2019-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1983041, encodeId=6dcd1983041ab, content=<a href='/topic/show?id=a7a7e359478' target=_blank style='color:#2F92EE;'>#硬化症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73594, encryptionId=a7a7e359478, topicName=硬化症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sun Jun 02 02:27:00 CST 2019, time=2019-06-02, status=1, ipAttribution=)]

相关资讯

PLOS ONE:利妥昔单抗治疗多发性硬化症的临床有效性和安全性

最近,来自瑞士的研究人员进行了一项探究,观察用RTX治疗的MS患者,并在临床实践环境中调查其有效性和安全性。

FDA接受Merck制药关于克拉屈滨治疗多发性硬化症的申请

Merck制药今日宣布,FDA接受了Merck制药关于要求批准克拉屈滨治疗复发型多发性硬化症(MS)患者的申请。该机构于2011年发出完整的回复函,要求更好地了解该药物的安全风险和整体利益风险状况。

NEJM:芬戈莫德与干扰素β-1a对儿童多发性硬化症的疗效比较

由此可见,在患有复发性多发性硬化症的儿科患者中,与干扰素β-1a治疗相比,芬戈莫德治疗后复发率较低,并且在2年内与MRI上病灶累积较少,但与较高的严重不良事件发生率相关。需要更长时间的研究来确定芬戈莫德在儿科多发性硬化症中的疗效耐久性和安全性。

N Engl J Med:异丁司特治疗进行性多发性硬化症喜忧参半

美国学者在《N Engl J Med》发表了异丁司特治疗进行性多发性硬化症的2期试验。

NICE掉头支持罗氏的Ocrevus治疗多发性硬化症

罗氏公司的Ocrevus现在已经赢得了NICE的支持,成为复发缓解型成人多发性硬化症的治疗药物,最初被成本监督机构拒绝。当alemtuzumab被禁用或不适合使用时,国家医疗服务系统将为该药物提供资金支持。该公司以保密患者准入计划中商定的折扣价格提供Ocrevus (Ocrevus, ocrelizumab)。该研究所表示,临床试验结果显示,与复发缓解型MS患者的干扰素β-1a相比,它可减少复发并

Cell:重新出发,寻找直接造成疾病的基因突变

耶鲁大学科学家领导的一项国际合作解决了多发性硬化症的相关难题:到底致病基因在哪里?

Baidu
map
Baidu
map
Baidu
map