PNAS:熊果酸逆转多发性硬化症中的神经元损伤

2020-04-12 MedSci原创 MedSci原创

目前治疗多发性硬化症(MS)的药物主要起的是免疫调节作用,对受损的中枢神经系统(CNS)组织的神经再生作用不大或根本没有影响。因此,这些药物主要是在疾病的急性阶段起效,但在慢性阶段的效果要差得多。

目前治疗多发性硬化症(MS)的药物主要起的是免疫调节作用,对受损的中枢神经系统(CNS)组织的神经再生作用不大或根本没有影响。因此,这些药物主要是在疾病的急性阶段起效,但在慢性阶段的效果要差得多。

因此,一种同时具有免疫调节和神经再生作用的MS疗法将是非常有益的。在最近的一项研究中,我国研究人员利用多种体内和体外策略,证明了具有抗炎作用的天然三萜类物质--熊果酸(UA),也能直接促进少突胶质细胞成熟和中枢神经系统髓鞘修复。

在实验性自身免疫性脑脊髓炎(EAE)的动物模型(一种MS的动物模型)中,UA的口服治疗显著降低了疾病的严重程度和中枢神经系统的炎症和脱髓鞘。

重要的是,即使在免疫后第60天开始UA治疗,在有全面脱髓鞘和轴突损伤的EAE小鼠中可以观察到中枢神经系统的再髓鞘化和神经修复。在体内和体外脑器官型切片培养物中,UA治疗还增强了杯状细胞诱导的脱髓鞘模型中的再髓鞘化,并在体外促进了少突胶质细胞的成熟,表明其有直接的髓鞘化能力。

从机理上讲,UA通过过氧化体增殖体激活受体γ(PPARγ)/CREB信号转导,诱导星形胶质细胞中的原髓鞘神经营养因子CNTF,以及通过PPARγ激活上调少突胶质细胞成熟过程中的髓鞘相关基因表达。

总之,该研究结果表明,UA作为一种口服抗炎和神经修复剂,对MS,特别是在慢性进行性阶段,具有显著的潜力。

 

原始出处:

Zhang Y et al. A dual effect of ursolic acid to the treatment of multiple sclerosis through both immunomodulation and direct remyelination. PNAS, 2020; doi: 10.1073/pnas.2000208117.

 

 

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=1890108, encodeId=b6b618901089a, 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=28, 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=Tue Dec 08 00:57:49 CST 2020, time=2020-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1856391, encodeId=9b351856391a4, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Tue Mar 23 01:57:49 CST 2021, time=2021-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1983112, encodeId=5c40198311288, 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=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73594, encryptionId=a7a7e359478, topicName=硬化症)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Tue May 12 00:57:49 CST 2020, time=2020-05-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397946, encodeId=f680139e9464e, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Tue Apr 14 02:57:49 CST 2020, time=2020-04-14, status=1, ipAttribution=)]
    2020-12-08 jml2009
  2. [GetPortalCommentsPageByObjectIdResponse(id=1890108, encodeId=b6b618901089a, 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=28, 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=Tue Dec 08 00:57:49 CST 2020, time=2020-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1856391, encodeId=9b351856391a4, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Tue Mar 23 01:57:49 CST 2021, time=2021-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1983112, encodeId=5c40198311288, 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=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73594, encryptionId=a7a7e359478, topicName=硬化症)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Tue May 12 00:57:49 CST 2020, time=2020-05-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397946, encodeId=f680139e9464e, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Tue Apr 14 02:57:49 CST 2020, time=2020-04-14, status=1, ipAttribution=)]
    2021-03-23 drwjr
  3. [GetPortalCommentsPageByObjectIdResponse(id=1890108, encodeId=b6b618901089a, 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=28, 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=Tue Dec 08 00:57:49 CST 2020, time=2020-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1856391, encodeId=9b351856391a4, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Tue Mar 23 01:57:49 CST 2021, time=2021-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1983112, encodeId=5c40198311288, 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=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73594, encryptionId=a7a7e359478, topicName=硬化症)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Tue May 12 00:57:49 CST 2020, time=2020-05-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397946, encodeId=f680139e9464e, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Tue Apr 14 02:57:49 CST 2020, time=2020-04-14, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1890108, encodeId=b6b618901089a, 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=28, 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=Tue Dec 08 00:57:49 CST 2020, time=2020-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1856391, encodeId=9b351856391a4, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Tue Mar 23 01:57:49 CST 2021, time=2021-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1983112, encodeId=5c40198311288, 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=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73594, encryptionId=a7a7e359478, topicName=硬化症)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Tue May 12 00:57:49 CST 2020, time=2020-05-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397946, encodeId=f680139e9464e, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56543, encryptionId=8bee565436d, topicName=损伤)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eoNX3lUOlDKGBUEPNwZx0nibmdcFyeibnX4WMhUSCU2REpGRWtSmnT2CCs0dA5waxvJknYDxwtYnIcQ/132, createdBy=294e2500218, createdName=ms3046638856685384, createdTime=Tue Apr 14 02:57:49 CST 2020, time=2020-04-14, status=1, ipAttribution=)]

相关资讯

CELL:膳食纤维经肠道细菌加工后影响多发性硬化病程

服用PA 3年后,MS年复发率降低,疾病相关的残疾情况稳定,脑萎缩减少。功能微生物组分析显示,PA摄入后肠中Treg细胞诱导基因表达增加。

Ponesimod治疗成人多发性硬化症:强生已向美国FDA提交新药申请(NDA)

强生制药公司今日宣布,已向美国食品和药品监督管理局(FDA)提交新药申请(NDA),以寻求Ponesimod治疗成人复发性多发性硬化症(MS)的上市许可。

FDA准许开展IMS001治疗多发性硬化症的临床计划

ImStem Biotechnology是一家生物制药公司,使用人类胚胎干细胞(ESC)衍生的间充质干细胞(hES-MSC)治疗神经系统疾病、自身免疫疾病和罕见疾病。

Neurology:多发性硬化症患者多重死亡原因分析

由此可见,归因于MS的死亡通常是由感染(尤其是与呼吸道和泌尿道有关的感染)、与晚期残疾和行动不便相关疾病,例如吸入性肺炎以及男性慢性呼吸道疾病所引起的。所有这些都可能被改善;减少这些并发症发生频率或严重程度的干预措施可以提高MS患者的生存率。

FDA批准S1P受体调控剂ozanimod用于多发性硬化症药物

今天FDA批准了施贵宝的多发性硬化症药物、S1P受体调控剂ozanimod(商品名ZEPOSIA),用于成人复发性MS(RRMS)患者的治疗。

Radiology:脑白质MRI成像新技术——髓磷脂进行直接成像

由于含水长T2的信号污染,利用MRI对髓磷脂进行直接成像是非常具有挑战性的。将非必需的长T2信号消除能够通过翻转恢复(IR)预脉冲来实现颅内脑白质长T2信号。而超短T2信号的髓磷脂便可通过超短回波时间