Baidu
map

BLOOD:PKM2促进中性粒细胞激活和脑血栓炎症对缺血性中风的治疗意义

2021-09-22 MedSci原创 MedSci原创

目前,急性缺血性中风可通过使用重组组织纤溶酶原激活剂(rtPA)静脉溶栓和/或机械血栓切除来治疗。虽然这两种方法都是有效的,但它们也有局限性。例如,在rtPA中,近17-34%的卒中患者给药后观察到早

目前,急性缺血性中风可通过使用重组组织纤溶酶原激活剂(rtPA)静脉溶栓和/或机械血栓切除来治疗。虽然这两种方法都是有效的,但它们也有局限性。例如,在rtPA中,近17-34%的卒中患者给药后观察到早期动脉再闭塞和不甚理想的预后结局。这些局限性提示了我们对新的辅助治疗的需求,以有效提高卒中再灌注治疗效果。

近日有研究团队发现,在人类和小鼠中,缺血性中风发作后,中性粒细胞中的核丙酮酸激酶肌肉2 (PKM2) 是全身性炎症的调节剂,他们利用已有合并症的小鼠模型确定了PKM2在中风发病机理中的作用。

在野生型 (PKM2fl/flLysMCre) 和高脂血症背景 (PKM2fl/flLysMCre Apoe-/-) 上生成了新型骨髓细胞特异性 PKM2 -/-小鼠。对照是同窝 PKM2 fl/fl LysMCre-或 PKM2 fl/fl LysMCre - Apoe -/-小鼠。

骨髓细胞中PKM2的遗传缺失限制了脑缺血/再灌注后外周中性粒细胞的炎症反应,并减少了中性粒细胞的细胞外陷阱,这表明PKM2在中风时会促进中性粒细胞的过度活化。

在丝状体和自体凝块/rtPA 中风模型中,无论性别如何,野生型或高脂血症小鼠髓样细胞中PKM2的缺失都会减少梗塞并增强长期感觉运动恢复。激光散斑成像显示髓样细胞特异性PKM2缺陷小鼠的局部脑血流量改善,同时伴有缺血后脑血栓炎症(脑内纤维蛋白(原)、血小板(cd41阳性)沉积、中性粒细胞浸润和炎症细胞因子)的减少。

机制上,PKM2通过促进STAT3磷酸化来调节外周中性粒细胞的缺血后炎症。为了增强翻译意义,研究团队使用小分子抑制PKM2核易位,发现中性粒细胞过度活化显著减少,并改善了卒中后的短期和长期功能预后。

总的来说,这些发现表明PKM2是一种新的治疗靶点,可以改善再灌注后的脑挽救和恢复。  

原始出处:

Nirav Dhanesha, Rakesh B. Patel, Prakash Doddapattar, Madankumar Ghatge, Gagan D Flora, Manish Jain, Daniel Thedens, Heena Olalde, Mariia Kumskova, Enrique Leira, Anil K Chauhan; PKM2 promotes neutrophil activation and cerebral thrombo-inflammation: Therapeutic implications for ischemic strokeBlood 2021; blood.2021012322. doi: https://doi.org/10.1182/blood.2021012322

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 (6)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1893422, encodeId=5816189342283, content=<a href='/topic/show?id=c738e93521f' target=_blank style='color:#2F92EE;'>#缺血性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79352, encryptionId=c738e93521f, topicName=缺血性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Fri Feb 04 11:03:47 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1648649, encodeId=e46f16486490c, content=<a href='/topic/show?id=7f00850e802' target=_blank style='color:#2F92EE;'>#脑血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85078, encryptionId=7f00850e802, topicName=脑血栓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=007423623870, createdName=liuquanmn, createdTime=Sun May 08 19:03:47 CST 2022, time=2022-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1953603, encodeId=27a819536034e, content=<a href='/topic/show?id=5ba26462383' target=_blank style='color:#2F92EE;'>#治疗意义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64623, encryptionId=5ba26462383, topicName=治疗意义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=af68384, createdName=hanhaisha2008, createdTime=Fri Jun 24 23:03:47 CST 2022, time=2022-06-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296770, encodeId=80e61296e700b, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372302, encodeId=2cf113e2302e4, content=<a href='/topic/show?id=4e131432eda' target=_blank style='color:#2F92EE;'>#PKM2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=143, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14327, encryptionId=4e131432eda, topicName=PKM2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e2c339, createdName=by2009, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1500617, encodeId=8177150061e31, content=<a href='/topic/show?id=a1d3e93536b' target=_blank style='color:#2F92EE;'>#缺血性中风#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79353, encryptionId=a1d3e93536b, topicName=缺血性中风)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c54f9440276, createdName=hywen7329, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1893422, encodeId=5816189342283, content=<a href='/topic/show?id=c738e93521f' target=_blank style='color:#2F92EE;'>#缺血性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79352, encryptionId=c738e93521f, topicName=缺血性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Fri Feb 04 11:03:47 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1648649, encodeId=e46f16486490c, content=<a href='/topic/show?id=7f00850e802' target=_blank style='color:#2F92EE;'>#脑血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85078, encryptionId=7f00850e802, topicName=脑血栓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=007423623870, createdName=liuquanmn, createdTime=Sun May 08 19:03:47 CST 2022, time=2022-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1953603, encodeId=27a819536034e, content=<a href='/topic/show?id=5ba26462383' target=_blank style='color:#2F92EE;'>#治疗意义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64623, encryptionId=5ba26462383, topicName=治疗意义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=af68384, createdName=hanhaisha2008, createdTime=Fri Jun 24 23:03:47 CST 2022, time=2022-06-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296770, encodeId=80e61296e700b, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372302, encodeId=2cf113e2302e4, content=<a href='/topic/show?id=4e131432eda' target=_blank style='color:#2F92EE;'>#PKM2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=143, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14327, encryptionId=4e131432eda, topicName=PKM2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e2c339, createdName=by2009, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1500617, encodeId=8177150061e31, content=<a href='/topic/show?id=a1d3e93536b' target=_blank style='color:#2F92EE;'>#缺血性中风#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79353, encryptionId=a1d3e93536b, topicName=缺血性中风)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c54f9440276, createdName=hywen7329, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1893422, encodeId=5816189342283, content=<a href='/topic/show?id=c738e93521f' target=_blank style='color:#2F92EE;'>#缺血性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79352, encryptionId=c738e93521f, topicName=缺血性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Fri Feb 04 11:03:47 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1648649, encodeId=e46f16486490c, content=<a href='/topic/show?id=7f00850e802' target=_blank style='color:#2F92EE;'>#脑血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85078, encryptionId=7f00850e802, topicName=脑血栓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=007423623870, createdName=liuquanmn, createdTime=Sun May 08 19:03:47 CST 2022, time=2022-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1953603, encodeId=27a819536034e, content=<a href='/topic/show?id=5ba26462383' target=_blank style='color:#2F92EE;'>#治疗意义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64623, encryptionId=5ba26462383, topicName=治疗意义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=af68384, createdName=hanhaisha2008, createdTime=Fri Jun 24 23:03:47 CST 2022, time=2022-06-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296770, encodeId=80e61296e700b, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372302, encodeId=2cf113e2302e4, content=<a href='/topic/show?id=4e131432eda' target=_blank style='color:#2F92EE;'>#PKM2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=143, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14327, encryptionId=4e131432eda, topicName=PKM2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e2c339, createdName=by2009, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1500617, encodeId=8177150061e31, content=<a href='/topic/show?id=a1d3e93536b' target=_blank style='color:#2F92EE;'>#缺血性中风#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79353, encryptionId=a1d3e93536b, topicName=缺血性中风)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c54f9440276, createdName=hywen7329, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1893422, encodeId=5816189342283, content=<a href='/topic/show?id=c738e93521f' target=_blank style='color:#2F92EE;'>#缺血性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79352, encryptionId=c738e93521f, topicName=缺血性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Fri Feb 04 11:03:47 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1648649, encodeId=e46f16486490c, content=<a href='/topic/show?id=7f00850e802' target=_blank style='color:#2F92EE;'>#脑血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85078, encryptionId=7f00850e802, topicName=脑血栓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=007423623870, createdName=liuquanmn, createdTime=Sun May 08 19:03:47 CST 2022, time=2022-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1953603, encodeId=27a819536034e, content=<a href='/topic/show?id=5ba26462383' target=_blank style='color:#2F92EE;'>#治疗意义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64623, encryptionId=5ba26462383, topicName=治疗意义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=af68384, createdName=hanhaisha2008, createdTime=Fri Jun 24 23:03:47 CST 2022, time=2022-06-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296770, encodeId=80e61296e700b, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372302, encodeId=2cf113e2302e4, content=<a href='/topic/show?id=4e131432eda' target=_blank style='color:#2F92EE;'>#PKM2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=143, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14327, encryptionId=4e131432eda, topicName=PKM2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e2c339, createdName=by2009, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1500617, encodeId=8177150061e31, content=<a href='/topic/show?id=a1d3e93536b' target=_blank style='color:#2F92EE;'>#缺血性中风#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79353, encryptionId=a1d3e93536b, topicName=缺血性中风)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c54f9440276, createdName=hywen7329, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1893422, encodeId=5816189342283, content=<a href='/topic/show?id=c738e93521f' target=_blank style='color:#2F92EE;'>#缺血性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79352, encryptionId=c738e93521f, topicName=缺血性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Fri Feb 04 11:03:47 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1648649, encodeId=e46f16486490c, content=<a href='/topic/show?id=7f00850e802' target=_blank style='color:#2F92EE;'>#脑血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85078, encryptionId=7f00850e802, topicName=脑血栓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=007423623870, createdName=liuquanmn, createdTime=Sun May 08 19:03:47 CST 2022, time=2022-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1953603, encodeId=27a819536034e, content=<a href='/topic/show?id=5ba26462383' target=_blank style='color:#2F92EE;'>#治疗意义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64623, encryptionId=5ba26462383, topicName=治疗意义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=af68384, createdName=hanhaisha2008, createdTime=Fri Jun 24 23:03:47 CST 2022, time=2022-06-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296770, encodeId=80e61296e700b, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372302, encodeId=2cf113e2302e4, content=<a href='/topic/show?id=4e131432eda' target=_blank style='color:#2F92EE;'>#PKM2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=143, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14327, encryptionId=4e131432eda, topicName=PKM2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e2c339, createdName=by2009, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1500617, encodeId=8177150061e31, content=<a href='/topic/show?id=a1d3e93536b' target=_blank style='color:#2F92EE;'>#缺血性中风#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79353, encryptionId=a1d3e93536b, topicName=缺血性中风)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c54f9440276, createdName=hywen7329, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=)]
    2021-09-24 by2009
  6. [GetPortalCommentsPageByObjectIdResponse(id=1893422, encodeId=5816189342283, content=<a href='/topic/show?id=c738e93521f' target=_blank style='color:#2F92EE;'>#缺血性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79352, encryptionId=c738e93521f, topicName=缺血性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Fri Feb 04 11:03:47 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1648649, encodeId=e46f16486490c, content=<a href='/topic/show?id=7f00850e802' target=_blank style='color:#2F92EE;'>#脑血栓#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85078, encryptionId=7f00850e802, topicName=脑血栓)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=007423623870, createdName=liuquanmn, createdTime=Sun May 08 19:03:47 CST 2022, time=2022-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1953603, encodeId=27a819536034e, content=<a href='/topic/show?id=5ba26462383' target=_blank style='color:#2F92EE;'>#治疗意义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64623, encryptionId=5ba26462383, topicName=治疗意义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=af68384, createdName=hanhaisha2008, createdTime=Fri Jun 24 23:03:47 CST 2022, time=2022-06-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1296770, encodeId=80e61296e700b, content=<a href='/topic/show?id=29c82219e47' target=_blank style='color:#2F92EE;'>#中性粒细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22197, encryptionId=29c82219e47, topicName=中性粒细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3883266, createdName=yykkxiaodou, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372302, encodeId=2cf113e2302e4, content=<a href='/topic/show?id=4e131432eda' target=_blank style='color:#2F92EE;'>#PKM2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=143, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14327, encryptionId=4e131432eda, topicName=PKM2)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e2c339, createdName=by2009, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1500617, encodeId=8177150061e31, content=<a href='/topic/show?id=a1d3e93536b' target=_blank style='color:#2F92EE;'>#缺血性中风#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79353, encryptionId=a1d3e93536b, topicName=缺血性中风)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c54f9440276, createdName=hywen7329, createdTime=Fri Sep 24 08:03:47 CST 2021, time=2021-09-24, status=1, ipAttribution=)]

相关资讯

Cell Res:杨巍维教授发现PKM2抑制细胞凋亡的新机制

2016年12月30日,国际学术期刊《细胞研究》(Cell Research)在线发表了中国科学院上海生命科学研究院生物化学与细胞生物学研究所杨巍维研究组的最新研究成果Mitochondrial PKM2 regulates oxidative stress-induced apoptosis by stabilizing Bcl2。该研究揭示了细胞存在氧化压力时,PKM2通过稳定Bcl2从而抑制细胞凋亡的新机制。

PKM2(Pyruvate kinase M2 isoform)是糖酵解途径的关键酶,在肿瘤细胞的发生发展中起重要作用;除了其代谢活性以外,现已有多个实验室报道了其蛋白激酶活性。杨巍维的前期研究发现在EGFR激活的条件下,PKM2可转运至细胞核,磷酸化组蛋白H3,通过表观遗传的方式调控一系列原癌基因的表达(Nature 2011,Cell 2012)。除了在细胞增殖中发挥作用,最近有

Circulation:Pkm2调控心肌细胞周期,可促进心肌细胞再生

成年哺乳动物心脏的再生能力有限,主要是因为出生后,心肌细胞周期就会停滞。在过去的二十年中,大量研究探索了心肌细胞周期的调控机制,以增强心肌梗死后的心肌再生。Pkm2(丙酮酸激酶肌肉同工酶2)是糖酵解丙

JEM:选择性抑制PKM2饿死癌细胞

基于PyMQ构建的PKM2蛋白结构,图片来自维基共享资源。 根据2012年1月23日在线发表在Journal of Experimental Medicine期刊上的一项研究,当氧气稀缺时,破坏一种允许癌细胞生长的蛋白能够导致肿瘤退化。 在癌细胞中,一种称作PKM2(丙酮酸激酶M2异构体)的酶大量产生,从而允许它们在肿瘤内部发现的严峻低氧环境中产生能量。 美国麻省理工学院的Michael

Nat Med:丙酮酸激酶M2激活可减缓糖尿病肾小球病变和线粒体功能障碍的进展!

因此,PKM2激活可能防止DN,通过增强葡萄糖代谢通路,抑制毒性葡萄糖代谢产物,并且诱导线粒体生物合成以恢复线粒体功能。

Br J Cancer:APC缺失通过介导Wnt/β-catenin/PKM2通路诱导结直肠癌细胞的Warburg效应

相比于正常细胞,癌细胞表现出新陈代谢的改变、有氧糖酵解的增加和氧化磷酸化的减少。与氧气供应无关的葡萄糖摄取和乳酸生成增加,被称为有氧糖酵解或Warburg效应,是大多数癌细胞的主要特征。这种重编程的新

拓展阅读

脑梗死、脑出血、脑血栓…傻傻分不清?一文帮你梳理!

脑血管健康是关系到每个人生命安全的大事!

医学图文:图说脑梗死的主要影像诊断

脑梗死的发病机制和临床表现及分类。

Stroke:脑血栓的联合组学分析:识别心源性栓塞性卒中的一种新的分子手段

通过蛋白质组学和代谢组学相结合的方法分析回收的脑血栓可预测心源性栓塞性卒中,并改善继发性卒中预防策略的非常有前景的手段。

J Am Heart Assoc:芬兰学者在脑血栓中发现口腔细菌DNA

芬兰坦佩雷大学的研究人员在美国心脏协会杂志上发表研究称,他们首次在急性缺血性卒中患者的脑血栓中发现了在口腔中存在的链球菌属的DNA。这进一步表明口腔细菌可能在脑血管疾病中起作用。

NEJM:MRI指导阿替普酶溶栓治疗用于发病时间未知的脑血栓患者

研究认为对于发病时间未知的急性脑血栓患者,如果MRI指征证实可接受阿替普酶溶栓治疗,则患者90天预后较安慰剂治疗可显著得到改善

脑梗死、脑血栓及脑出血的区别

1、脑梗死(脑梗、脑梗塞、缺血性脑卒中):脑梗是脑动脉阻塞后出现相应部位脑组织的破坏,可伴发出血。发病机制为血栓形成或栓塞,症状的性质因病变累及的血管不同而异。脑梗占全部脑卒中的 70%~80%。

缺血性脑卒中(大动脉粥样硬化型)治未病干预指南

北京中医药大学东方医院 · 2023-08-30

缺血性脑卒中复发预防的最佳证据总结

广州医科大学护理学院 · 2023-06-10

缺血性脑卒中患者高血糖管理的最佳证据总结

华中科技大学同济医学院附属同济医院神经内科 · 2023-02-10

Baidu
map
Baidu
map
Baidu
map