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Hypertension:外泌体及其含有的Y RNA片段可减轻AngII诱导的终末器官损伤

2018-06-08 MedSci MedSci原创

高血压常导致心血管疾病和肾功能异常。心内膜源细胞的外泌体(CDC-exo)及其最组成最丰富的小RNA——Y RNA片段EC-YF1,在心肌梗死后发挥治疗作用。Linda Cambier等研究人员在长期注射血管紧张素II(Ang-II)诱导的心肌肥大和肾损伤模型中研究CDC-exo和EC-YF1的作用。经过2周的AngII处理后,多次予以CDC-exo或EV-FY1治疗。结果发现,AngII诱导的收

高血压常导致心血管疾病和肾功能异常。心内膜源细胞的外泌体(CDC-exo)及其最组成最丰富的小RNA——Y RNA片段EC-YF1,在心肌梗死后发挥治疗作用。

Linda Cambier等研究人员在长期注射血管紧张素II(Ang-II)诱导的心肌肥大和肾损伤模型中研究CDC-exo和EC-YF1的作用。经过2周的AngII处理后,多次予以CDC-exo或EV-FY1治疗。

结果发现,AngII诱导的收缩压升高不受CDC-exo或EV-YF1影响。超声心动图提示AngII处理可导致心肌肥大。CDC-exo或EV-YF1均可减缓心肌肥大、减轻心肌炎和心肌纤维化。此外,CDC-exo和EV-YF1均可改善肾功能、减轻肾脏炎症和纤维化。CDC-exo和EV-YF1的作用与抗炎性细胞因子IL(白介素)-10在血清、心脏、脾脏和肾中的表达水平改变相关。

总而言之,输注CDC-exo或EV-YF1可减轻AngII所诱导的心肌肥大和肾损伤,且不影响血压,与IL-10表达水平改变相关。外泌体及其包含的明确的非编码RNA或许可成为治疗高血压相关的心血管和肾损伤的新疗法。

原始出处:

Linda Cambier, et al.Angiotensin II–Induced End-Organ Damage in Mice Is Attenuated by Human Exosomes and by an Exosomal Y RNA Fragment.Hypertension. June 04,2018.https://doi.org/10.1161/HYPERTENSIONAHA.118.11239


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    2018-09-24 feather89
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  5. [GetPortalCommentsPageByObjectIdResponse(id=2038915, encodeId=d1c020389156e, content=<a href='/topic/show?id=b45d1e274e8' target=_blank style='color:#2F92EE;'>#TENS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17274, encryptionId=b45d1e274e8, topicName=TENS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3b172500206, createdName=12498ebem19暂无昵称, createdTime=Mon Dec 03 08:56:00 CST 2018, time=2018-12-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1727366, encodeId=d3d11e2736681, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Mon Sep 24 00:56:00 CST 2018, time=2018-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1987031, encodeId=2520198e0314f, content=<a href='/topic/show?id=f4554029898' target=_blank style='color:#2F92EE;'>#器官损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=40298, encryptionId=f4554029898, topicName=器官损伤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6f7770, createdName=jeanqiuqiu, createdTime=Sat Jan 12 23:56:00 CST 2019, time=2019-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1397554, encodeId=e093139e5541d, content=<a href='/topic/show?id=8bee565436d' target=_blank style='color:#2F92EE;'>#损伤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, 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=Sun Jun 10 00:56:00 CST 2018, time=2018-06-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1501298, encodeId=dcfe1501298cd, content=<a href='/topic/show?id=f2db9238f9' target=_blank style='color:#2F92EE;'>#Hypertension#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9238, encryptionId=f2db9238f9, topicName=Hypertension)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=11ff9497046, createdName=jambiya, createdTime=Sun Jun 10 00:56:00 CST 2018, time=2018-06-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322675, encodeId=64423226e53d, content=学习学习谢谢, beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLbTp9nZtjwVrSZNxAXbAicnKQWnic2eBdJUQYhxO36XdkstSicr7FVF8p5ReH4omtmsbnLdvZLiaJJ1A/132, createdBy=8bff2327056, createdName=kafei, createdTime=Sat Jun 09 06:43:22 CST 2018, time=2018-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322558, encodeId=2178322558f2, content=了解一下.谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zMoyicyo6ia9f4IuLQAwZoxD6Hx4ibd5CMcOCYhStY6oDibbKK6O2X8iaicldO5ib8j1iapOIobIKCGiczU2A/0, createdBy=56251941490, createdName=虈亣靌, createdTime=Fri Jun 08 16:43:46 CST 2018, time=2018-06-08, status=1, ipAttribution=)]
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    2018-06-09 kafei

    学习学习谢谢

    0

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    2018-06-08 虈亣靌

    了解一下.谢谢分享!

    0

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CLIN CANCER RES:头颈部肿瘤患者血浆PD-L1+外泌体的临床意义

头颈部鳞状细胞癌的肿瘤微环境是高度免疫抑制的。PD-L1表达水平升高的头颈部鳞状细胞癌预后尤其差。表达PD-L1并抑制T细胞功能的外泌体可以从头颈部鳞状细胞癌患者血浆分离出来。CLIN CANCER RES近期发表了一篇文章,研究PD-L1+外泌体对免疫抑制和肿瘤的影响

Cell Death Dis:发现肿瘤相关巨噬细胞促进胃癌转移新机制

近日,来自上海交通大学医学院附属新华医院检验科沈立松课题组的研究人员在胃癌的发病机制方面取得了新的进展,明确了肿瘤相关巨噬细胞来源的外泌体对胃癌转移的影响,发现M2型巨噬细胞亚群通过外泌体传递ApoE蛋白分子促进胃癌细胞的迁移及转移过程。该成果发表在最新一期的Cell Death & Disease 杂志上。

Nanomaterials (Basel):基于纸的微流体平台发现外泌体在引起失明的疾病中具有致病作用

台湾台中市中山医科大学附属医院眼科的Hsu MY最近在Nanomaterials (Basel)发表了一篇文章,他们通过对房水进行分析,发现在主要导致失明的威胁性疾病如年龄相关性黄斑变性、青光眼和角膜营养不良中,外泌体具有致病作用。

Cancer Biol Ther:通过抑制外泌体的释放酮替芬可增强癌细胞对阿霉素的敏感性

癌细胞释放的外泌体有助于受体细胞的转移和生长并增加其对化学疗法的抗性。癌症研究中外泌体靶向治疗具有很好的前景。本研究旨在测试肥大细胞稳定剂酮替芬对癌细胞外泌体释放的影响,及其如何改变癌细胞对阿霉素的治疗反应。通过扫描电子显微镜和外泌体定量试剂盒评估三种癌细胞系(MCF7,HeLa和BT549)的外泌体释放。通过荧光法监测外泌体内的阿霉素的释放,并通过磺酰罗丹明-B和集落形成实验测量细胞对阿霉素-酮

Adv Funct Mater:功能化外泌体将光热治疗与化疗结合高效靶向治疗癌症

近期,国际权威学术期刊《Advanced Functional Materials》发表了华中科技大学刘笔锋教授团队的重要研究成果,题为“Designer Exosomes for Active Targeted Chemo Photothermal Synergistic Tumor Therapy”。

2018(第三届)外泌体与疾病研讨会在沪举行,盛况空前!

3月23日--24日,2018(第三届)外泌体与疾病研讨会于上海盛大召开,大会围绕外泌体的基础研究、临床应用和相关分离检测技术等议题展开学术交流。会议期间,各参会嘉宾专家分享外泌体前沿科技成果、解析外泌体研究的最新技术,吸引了海内外行业同仁的高度关注,会议现场座无虚席! 本届研讨会在前两届会议的基础上,大刀阔斧全面升级,广邀专家学者以及青年学者进行学术交流,促进科研转化。会议集中体现近年来国

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