JAHA:SMAD信号通路在动静脉连接的形成中起关键作用

2018-11-08 MedSci MedSci原创

遗传性出血性毛细血管扩张症(HHT)是一种罕见的由ENG、ALK1或SMAD4基因突变导致的遗传性血管疾病。HHT的主要临床表现是大脑、肺、内脏器官和粘膜表面的动静脉畸形(AVMs)。本研究的目的旨在评估Smad4引导性敲除(iKO)小鼠建立HHT模型的特征及其与其他已知HHT模型的比较。本研究将新生小鼠和成年小鼠诱导Smad4的敲除,并对其血红蛋白水平、消化道出血以及异常的动静脉连接的存在进行了

遗传性出血性毛细血管扩张症(HHT)是一种罕见的由ENG、ALK1或SMAD4基因突变导致的遗传性血管疾病。HHT的主要临床表现是大脑、肺、内脏器官和粘膜表面的动静脉畸形(AVMs)。本研究的目的旨在评估Smad4引导性敲除(iKO)小鼠建立HHT模型的特征及其与其他已知HHT模型的比较。

本研究将新生小鼠和成年小鼠诱导Smad4的敲除,并对其血红蛋白水平、消化道出血以及异常的动静脉连接的存在进行了检查。结果发现,新生的Smad4-iKO小鼠表现为消化道出血和大脑、小肠、鼻子与视网膜的动静脉连接异常,在AVM形成的时候可以观察到异常的平滑肌actin染色,提示异常的动脉连至静脉。在成年的iKO小鼠中,可以观察到消化道出血和沿着肠道的AVM。Smad4-iKO小鼠的HHT模型表现与 Alk1‐iKO和Eng‐iKO小鼠表型一致。

本研究进一步证实了SMAD信号通路在正常的动静脉网络形成中的关键作用。

原始出处:

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 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1794143, encodeId=afa91e94143ca, content=<a href='/topic/show?id=09e61642864' target=_blank style='color:#2F92EE;'>#Smad#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16428, encryptionId=09e61642864, topicName=Smad)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Thu Nov 15 03:44:00 CST 2018, time=2018-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1697798, encodeId=48d4169e7987e, content=<a href='/topic/show?id=f2399910109' target=_blank style='color:#2F92EE;'>#静脉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99101, encryptionId=f2399910109, topicName=静脉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0bc129907796, createdName=fusion, createdTime=Fri Jun 07 05:44:00 CST 2019, time=2019-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1267960, encodeId=b086126e96010, content=<a href='/topic/show?id=922f21183d' target=_blank style='color:#2F92EE;'>#AHA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2118, encryptionId=922f21183d, topicName=AHA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf3d82, createdName=zhaohui6731, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1388886, encodeId=9e6e138888630, content=<a href='/topic/show?id=a75a1642585' target=_blank style='color:#2F92EE;'>#SMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16425, encryptionId=a75a1642585, topicName=SMA)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTK17mLkWpia3T92NlEWTkEhrhZa7XPNic2JqQumEicZXGYFG6Ww5SCIl0Uq62bhhPnibAqIZDHtRva92A/132, createdBy=e0752500025, createdName=江川靖瑶, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539709, encodeId=c07e1539e09ad, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=)]
    2018-11-15 zhouqu_8
  2. [GetPortalCommentsPageByObjectIdResponse(id=1794143, encodeId=afa91e94143ca, content=<a href='/topic/show?id=09e61642864' target=_blank style='color:#2F92EE;'>#Smad#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16428, encryptionId=09e61642864, topicName=Smad)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Thu Nov 15 03:44:00 CST 2018, time=2018-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1697798, encodeId=48d4169e7987e, content=<a href='/topic/show?id=f2399910109' target=_blank style='color:#2F92EE;'>#静脉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99101, encryptionId=f2399910109, topicName=静脉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0bc129907796, createdName=fusion, createdTime=Fri Jun 07 05:44:00 CST 2019, time=2019-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1267960, encodeId=b086126e96010, content=<a href='/topic/show?id=922f21183d' target=_blank style='color:#2F92EE;'>#AHA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2118, encryptionId=922f21183d, topicName=AHA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf3d82, createdName=zhaohui6731, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1388886, encodeId=9e6e138888630, content=<a href='/topic/show?id=a75a1642585' target=_blank style='color:#2F92EE;'>#SMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16425, encryptionId=a75a1642585, topicName=SMA)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTK17mLkWpia3T92NlEWTkEhrhZa7XPNic2JqQumEicZXGYFG6Ww5SCIl0Uq62bhhPnibAqIZDHtRva92A/132, createdBy=e0752500025, createdName=江川靖瑶, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539709, encodeId=c07e1539e09ad, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=)]
    2019-06-07 fusion
  3. [GetPortalCommentsPageByObjectIdResponse(id=1794143, encodeId=afa91e94143ca, content=<a href='/topic/show?id=09e61642864' target=_blank style='color:#2F92EE;'>#Smad#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16428, encryptionId=09e61642864, topicName=Smad)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Thu Nov 15 03:44:00 CST 2018, time=2018-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1697798, encodeId=48d4169e7987e, content=<a href='/topic/show?id=f2399910109' target=_blank style='color:#2F92EE;'>#静脉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99101, encryptionId=f2399910109, topicName=静脉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0bc129907796, createdName=fusion, createdTime=Fri Jun 07 05:44:00 CST 2019, time=2019-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1267960, encodeId=b086126e96010, content=<a href='/topic/show?id=922f21183d' target=_blank style='color:#2F92EE;'>#AHA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2118, encryptionId=922f21183d, topicName=AHA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf3d82, createdName=zhaohui6731, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1388886, encodeId=9e6e138888630, content=<a href='/topic/show?id=a75a1642585' target=_blank style='color:#2F92EE;'>#SMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16425, encryptionId=a75a1642585, topicName=SMA)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTK17mLkWpia3T92NlEWTkEhrhZa7XPNic2JqQumEicZXGYFG6Ww5SCIl0Uq62bhhPnibAqIZDHtRva92A/132, createdBy=e0752500025, createdName=江川靖瑶, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539709, encodeId=c07e1539e09ad, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=)]
    2018-11-10 zhaohui6731
  4. [GetPortalCommentsPageByObjectIdResponse(id=1794143, encodeId=afa91e94143ca, content=<a href='/topic/show?id=09e61642864' target=_blank style='color:#2F92EE;'>#Smad#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16428, encryptionId=09e61642864, topicName=Smad)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Thu Nov 15 03:44:00 CST 2018, time=2018-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1697798, encodeId=48d4169e7987e, content=<a href='/topic/show?id=f2399910109' target=_blank style='color:#2F92EE;'>#静脉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99101, encryptionId=f2399910109, topicName=静脉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0bc129907796, createdName=fusion, createdTime=Fri Jun 07 05:44:00 CST 2019, time=2019-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1267960, encodeId=b086126e96010, content=<a href='/topic/show?id=922f21183d' target=_blank style='color:#2F92EE;'>#AHA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2118, encryptionId=922f21183d, topicName=AHA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf3d82, createdName=zhaohui6731, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1388886, encodeId=9e6e138888630, content=<a href='/topic/show?id=a75a1642585' target=_blank style='color:#2F92EE;'>#SMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16425, encryptionId=a75a1642585, topicName=SMA)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTK17mLkWpia3T92NlEWTkEhrhZa7XPNic2JqQumEicZXGYFG6Ww5SCIl0Uq62bhhPnibAqIZDHtRva92A/132, createdBy=e0752500025, createdName=江川靖瑶, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539709, encodeId=c07e1539e09ad, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=)]
    2018-11-10 江川靖瑶
  5. [GetPortalCommentsPageByObjectIdResponse(id=1794143, encodeId=afa91e94143ca, content=<a href='/topic/show?id=09e61642864' target=_blank style='color:#2F92EE;'>#Smad#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16428, encryptionId=09e61642864, topicName=Smad)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Thu Nov 15 03:44:00 CST 2018, time=2018-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1697798, encodeId=48d4169e7987e, content=<a href='/topic/show?id=f2399910109' target=_blank style='color:#2F92EE;'>#静脉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99101, encryptionId=f2399910109, topicName=静脉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0bc129907796, createdName=fusion, createdTime=Fri Jun 07 05:44:00 CST 2019, time=2019-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1267960, encodeId=b086126e96010, content=<a href='/topic/show?id=922f21183d' target=_blank style='color:#2F92EE;'>#AHA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2118, encryptionId=922f21183d, topicName=AHA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf3d82, createdName=zhaohui6731, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1388886, encodeId=9e6e138888630, content=<a href='/topic/show?id=a75a1642585' target=_blank style='color:#2F92EE;'>#SMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16425, encryptionId=a75a1642585, topicName=SMA)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTK17mLkWpia3T92NlEWTkEhrhZa7XPNic2JqQumEicZXGYFG6Ww5SCIl0Uq62bhhPnibAqIZDHtRva92A/132, createdBy=e0752500025, createdName=江川靖瑶, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539709, encodeId=c07e1539e09ad, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Nov 10 12:44:00 CST 2018, time=2018-11-10, status=1, ipAttribution=)]

相关资讯

JAHA:HIV感染可增加心衰发生风险

HIV感染可以增加心衰的发生风险,但是尚无研究评估HIV携带者(PLWH)的裁决性心衰的发生风险。本研究纳入分析了PLWH和无HIV感染的对照,内科医生通过电子病历来对裁决性心衰进行诊断,并分析比较了自动化诊断的心衰和内科医生的裁决性诊断。分析结果显示,4640名HIV携带者中有97名诊断为裁决性心衰,4250名对照中有55名诊断为裁决性心衰(HR:2.10; 95% Cl, 1.38-3.21)

JAHA:PCSK9i在动脉粥样硬化性心血管疾病患者中的使用

FOURIER 临床试验结果提示动脉粥样硬化性心血管疾病(ASCVD)患者的心血管事件发生逐渐减少,本研究的目的旨在评估前蛋白转化酶枯草杆菌蛋白酶 9抑制剂(PCSK9i )在临床上应用的合理性和对临床预后与预算的影响。本研究纳入了240万加拿大40-85岁的居民,其中5.3%曾有过ASCVD病史,研究者估计约2.7%的普通人群和51.9%的ASCVD患者是适合接受PCSK9i 治疗的,接受了PC

Brit J Nutr:芬兰20年随访研究称,多喝酸奶有助预防心脏病,多喝牛奶则适得其反

关于乳制品对心血管健康的影响,目前的研究结果并不一致。

JAMA Intern Med:轻度高血压接受降压治疗无心血管获益

根据JAMA子刊上发表的一项研究,轻度高血压患者接受抗高血压治疗不降低死亡率或心血管病风险,反而增加不良事件如低血压、晕厥和急性肾损伤的风险。

盘点:JACC十一月第一期研究一览

1.缺血性心脏病危险因素的控制与生存率DOI: 10.1016/j.jacc.2018.08.2163http://www.onlinejacc.org/content/72/19/2297单个危险因素的控制可以提高稳定性缺血性心脏病(SIHD)的生存率,但是多重危险因素的控制是否会增加生存率尚不清楚。本研究的目的旨在评估大量危险因素的控制与SIHD患者生存率的关系。在2287名COURAGE

Diabetes Care:地中海饮食及强化生活方式干预可有效减重并降低糖尿病患者心血管危险因素

近日,一篇发表在《Diabetes Care》的研究进行了持续一年的PREDIMED-Plus试验,其研究结果表明,地中海饮食及强化生活方式干预可有效降低代谢综合征及糖尿病患者的肥胖及心血管危险因素。目标:有有意减肥对心血管发病的长期影响仍然未知。研究人员在PREvención con DIeta MEDiterránea (PREDIMED)-Plus试验中研究了12个月的体重和心血管危险因素的