PLOS ONE:鼻内递送VEGF帮助代偿性肺生长

2018-06-09 海北 MedSci原创

血管内皮生长因子(VEGF)先前已被证明可加速小鼠的代偿性肺生长(CLG),并可能是肺发育不良的有效疗法。但是,全身施用VEGF可导致严重的副作用,如低血压和水肿。

血管内皮生长因子(VEGF)先前已被证明可加速小鼠的代偿性肺生长(CLG),并可能是肺发育不良的有效疗法。但是,全身施用VEGF可导致严重的副作用,如低血压和水肿。

最近的一项研究探索了鼻腔给药作为肺内VEGF的给药途径。研究人员对8周龄的C57BL / 6雄性小鼠进行左肺切除术,然后每日鼻腔灌注0.5mg / kgVEGF或等容盐水。在术后第4天(POD 4),研究人员对收获的肺组织进行肺容量测量,形态计量分析和蛋白质表达研究。

为了了解VEGF加速肺生长的机制,研究人员还在肺微血管内皮细胞(HMVEC-L)的共培养模型中评估了VEGF10ng / mL)处理对人支气管上皮细胞(HBEC)增殖的影响。然后研究人员用0.5-50μg/ mL的肝素结合EGF样生长因子(HB-EGF)中和抗体重复该测定。

与对照小鼠相比,VEGF处理组在POD 4上显示出显着更高的肺容量(P = 0.001)和肺泡计数(P = 0.005)。VEGF治疗导致HB-EGF的肺表达增加(P = 0.02)。 VEGF处理的HMVEC-L使得HBEC增殖增加(P = 0.002),而添加550μg/ mLHB-EGF中和抗体消除了这种效应(分别为P = 0.010.002)。

这些发现表明,VEGF的鼻腔递送增强了CLG。这些作用可以通过上调HB-EGF(一种上皮细胞有丝分裂原)的旁分泌机制来介导。


原始出处:
Dao DT et al. Intranasal delivery of VEGF enhances compensatory lung growth in mice. PLOS ONE, 2018; DOI: 10.1371/journal.pone.0198700

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    2018-06-09 龙胆草

    学习谢谢分享

    0

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    2018-06-09 13718711b3m

    学习了.获益匪浅.感谢分享.非常不错的病例

    0

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    2018-06-09 Jackie Li

    学习

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1790220, encodeId=47711e902207e, content=<a href='/topic/show?id=6e4814388e2' target=_blank style='color:#2F92EE;'>#Plos one#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14388, encryptionId=6e4814388e2, topicName=Plos one)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Tue Oct 23 06:07:00 CST 2018, time=2018-10-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368503, encodeId=dd431368503c2, content=<a href='/topic/show?id=25aa1833e88' target=_blank style='color:#2F92EE;'>#VEGF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18337, encryptionId=25aa1833e88, topicName=VEGF)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=80ca273, createdName=fanweitanzhen, createdTime=Sun Jun 10 22:07:00 CST 2018, time=2018-06-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322752, encodeId=1a93322e5292, content=学习谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4Nd44v3xHnnictn9UpctwtH62EPQ59TMdI9lnqHMgQ16nH7GmGCfpzicsHgjibYVk6vwSpXrC86gMibRkoaIzf5HwSz7/0, createdBy=78cc1691107, createdName=龙胆草, createdTime=Sat Jun 09 09:15:11 CST 2018, time=2018-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322748, encodeId=eb7c322e48d6, content=学习了.获益匪浅.感谢分享.非常不错的病例, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/02/27/c53a212859edcad4f60a54feffff50bb.jpg, createdBy=67cf1525321, createdName=13718711b3m, createdTime=Sat Jun 09 09:05:19 CST 2018, time=2018-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322740, encodeId=1f34322e4057, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NfBfgWn9nXBgH1sNSiaOAKhsKpN40jDHQKqcRzovau5VibLvREN8uxnu9sKoScBicHSiaDMmbveibFdrBiaD4k4IOPwlG/0, createdBy=b5d11730951, createdName=Jackie Li, createdTime=Sat Jun 09 07:51:42 CST 2018, time=2018-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=322727, encodeId=a4d5322e27d2, content=阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/fhZdOu27e88Voqh19n8eF8cLplo8L4nicKtH0WnE3KFELXns5XDu8rsiceK2HHDZc2SEStia5VV3Pia2QLMVqlWbHw/0, createdBy=6e012139475, createdName=神功盖世, createdTime=Sat Jun 09 07:41:21 CST 2018, time=2018-06-09, status=1, ipAttribution=)]
    2018-06-09 神功盖世

    0