Nature:IgM中和抗体鼻腔给药,提供对新冠变体的广泛保护作用

2021-06-06 Armstrong Armstrong生物药资讯

2021年6月3日,Nature 发表了德州大学健康科学中心华人科学家安志强、张凝艳、德州大学医务处石培勇与IgM Bioscience的Stephen F. Carroll合作的题为

2021年6月3日,Nature 发表了德州大学健康科学中心华人科学家安志强、张凝艳、德州大学医务处石培勇与IgM Bioscience的Stephen F. Carroll合作的题为:,发现IgM亚型新冠中和抗体经鼻腔内给药,可以提供对新冠病毒变体的广泛的保护作用。

本文通讯作为以下四位科学家,前三位均为德州大学华人科学家,最后一位为IgM Biosciences的临床前研发副总裁。

从左至右:张凝艳、安志强、石培勇、Stephen F. Carroll

研究团队分析了多个IgG中和抗体,将恒定区替换为IgA或IgM恒定区后获得相应的IgA亚型和IgM亚型中和抗体,相比之下,IgA的中和活性强于IgG,IgM的中和活性强于IgA。其中CoV-14替换为IgA和IgM亚型后,中和活性增强更明显(下图e、f、g)。

相比IgG,IgM亚型的CoV-14中和抗体亲和力、中和活性、ACE2阻断效应都显着增强。

IgM的中和抗体对多种突变体都保持了高度的中和活性,礼来、再生元的中和抗体对一些突变体中和活性显着降低,替换为IgM亚型后,中和活性也显着增强。

体内试验表明,IgM亚型中和抗体鼻腔给药,无论是作为预防或治疗,都提供了广泛的保护效应。

2020年4月,百济神州、Atreca、IgM Bioscience曾达成合作,共同开发新冠IgM或IgA亚型的中和抗体,后来百济神州又与丹序生物达成合作,开发2款IgG中和抗体。IgM Bioscience的新冠中和抗体IGM-6268预计于2021年三季度启动一期临床。

原始出处:

Ku, Z., Xie, X., Hinton, P.R. et al. Nasal delivery of an IgM offers broad protection from SARS-CoV-2 variants. Nature (2021). https://doi.org/10.1038/s41586-021-03673-2.

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    2022-01-16 liye789132251
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    2021-07-01 yhy100210
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    2021-06-06 小小医者

    #鼻腔给药#是国际热点,目前已上市的是地西-泮鼻腔给药治疗#癫痫#!陈薇院士新一代新冠病毒#疫苗#,也采用鼻腔给药。采用鼻腔给药,一方面吸收快,另一方面,还能建立#粘膜免疫#,一举两得!

    0

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    2021-06-06 mnda
  5. [GetPortalCommentsPageByObjectIdResponse(id=1885210, encodeId=7e8318852100a, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Jan 16 02:55:32 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1700385, encodeId=15f11e00385ba, content=<a href='/topic/show?id=a40c9525be' target=_blank style='color:#2F92EE;'>#IgM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9525, encryptionId=a40c9525be, topicName=IgM)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e80a30065003, createdName=yhy100210, createdTime=Thu Jul 01 15:55:32 CST 2021, time=2021-07-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=971338, encodeId=7c499e13383b, content=<a href='/topic/show?id=3e5f10352578' target=_blank style='color:#2F92EE;'>#鼻腔给药#</a>是国际热点,目前已上市的是地西-泮鼻腔给药治疗<a href='/topic/show?id=09f0e1554e6' target=_blank style='color:#2F92EE;'>#癫痫#</a>!陈薇院士新一代新冠病毒<a href='/topic/show?id=62afe048720' target=_blank style='color:#2F92EE;'>#疫苗#</a>,也采用鼻腔给药。采用鼻腔给药,一方面吸收快,另一方面,还能建立<a href='/topic/show?id=cb66e626361' target=_blank style='color:#2F92EE;'>#粘膜免疫#</a>,一举两得!, beContent=null, objectType=article, channel=null, level=null, likeNumber=380, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103525, encryptionId=3e5f10352578, topicName=鼻腔给药), TopicDto(id=71554, encryptionId=09f0e1554e6, topicName=癫痫), TopicDto(id=70487, encryptionId=62afe048720, topicName=疫苗), TopicDto(id=76263, encryptionId=cb66e626361, topicName=粘膜免疫)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=小小医者, createdTime=Sun Jun 06 18:14:41 CST 2021, time=2021-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1465887, encodeId=09af146588eb2, content=<a href='/topic/show?id=736b103508c6' target=_blank style='color:#2F92EE;'>#鼻腔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103508, encryptionId=736b103508c6, topicName=鼻腔)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=224e6763385, createdName=mnda, createdTime=Sun Jun 06 03:55:32 CST 2021, time=2021-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599160, encodeId=81f915991603c, content=<a href='/topic/show?id=f14d2e187ac' target=_blank style='color:#2F92EE;'>#保护作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27187, encryptionId=f14d2e187ac, topicName=保护作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2ee918684940, createdName=photoman, createdTime=Sun Jun 06 03:55:32 CST 2021, time=2021-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1029562, encodeId=25581029562ce, content=新冠肺炎,疫情何时才能消失, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=公卫新人, createdTime=Fri Jun 04 15:55:32 CST 2021, time=2021-06-04, status=1, ipAttribution=)]
  6. [GetPortalCommentsPageByObjectIdResponse(id=1885210, encodeId=7e8318852100a, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Jan 16 02:55:32 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1700385, encodeId=15f11e00385ba, content=<a href='/topic/show?id=a40c9525be' target=_blank style='color:#2F92EE;'>#IgM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9525, encryptionId=a40c9525be, topicName=IgM)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e80a30065003, createdName=yhy100210, createdTime=Thu Jul 01 15:55:32 CST 2021, time=2021-07-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=971338, encodeId=7c499e13383b, content=<a href='/topic/show?id=3e5f10352578' target=_blank style='color:#2F92EE;'>#鼻腔给药#</a>是国际热点,目前已上市的是地西-泮鼻腔给药治疗<a href='/topic/show?id=09f0e1554e6' target=_blank style='color:#2F92EE;'>#癫痫#</a>!陈薇院士新一代新冠病毒<a href='/topic/show?id=62afe048720' target=_blank style='color:#2F92EE;'>#疫苗#</a>,也采用鼻腔给药。采用鼻腔给药,一方面吸收快,另一方面,还能建立<a href='/topic/show?id=cb66e626361' target=_blank style='color:#2F92EE;'>#粘膜免疫#</a>,一举两得!, beContent=null, objectType=article, channel=null, level=null, likeNumber=380, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103525, encryptionId=3e5f10352578, topicName=鼻腔给药), TopicDto(id=71554, encryptionId=09f0e1554e6, topicName=癫痫), TopicDto(id=70487, encryptionId=62afe048720, topicName=疫苗), TopicDto(id=76263, encryptionId=cb66e626361, topicName=粘膜免疫)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=小小医者, createdTime=Sun Jun 06 18:14:41 CST 2021, time=2021-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1465887, encodeId=09af146588eb2, content=<a href='/topic/show?id=736b103508c6' target=_blank style='color:#2F92EE;'>#鼻腔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103508, encryptionId=736b103508c6, topicName=鼻腔)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=224e6763385, createdName=mnda, createdTime=Sun Jun 06 03:55:32 CST 2021, time=2021-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599160, encodeId=81f915991603c, content=<a href='/topic/show?id=f14d2e187ac' target=_blank style='color:#2F92EE;'>#保护作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27187, encryptionId=f14d2e187ac, topicName=保护作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2ee918684940, createdName=photoman, createdTime=Sun Jun 06 03:55:32 CST 2021, time=2021-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1029562, encodeId=25581029562ce, content=新冠肺炎,疫情何时才能消失, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=公卫新人, createdTime=Fri Jun 04 15:55:32 CST 2021, time=2021-06-04, status=1, ipAttribution=)]
    2021-06-04 公卫新人

    新冠肺炎,疫情何时才能消失

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