Small:具有肿瘤细胞内双重荧光增强特性的诊疗探针

2017-05-29 佚名 MaterialsViews

近年来,恶性肿瘤的诊疗一体化已成为材料学和生物医学的热点领域,这为肿瘤的精准治疗开辟了新途径,具有重要的研究意义和临床应用前景。在诊疗一体化制剂的开发中,作为生物探针的荧光材料越来越受到人们的重视,但传统荧光分子极易光漂白、具有聚集诱淬灭现象,且信噪比较低,这大大限制了其在生物医学上的应用。为了克服这一问题,浙江大学计剑教授研究团队开发了一种肿瘤细胞内特异性双重荧光增强的生物探针。与传统荧光标记方

近年来,恶性肿瘤的诊疗一体化已成为材料学和生物医学的热点领域,这为肿瘤的精准治疗开辟了新途径,具有重要的研究意义和临床应用前景。在诊疗一体化制剂的开发中,作为生物探针的荧光材料越来越受到人们的重视,但传统荧光分子极易光漂白、具有聚集诱淬灭现象,且信噪比较低,这大大限制了其在生物医学上的应用。为了克服这一问题,浙江大学计剑教授研究团队开发了一种肿瘤细胞内特异性双重荧光增强的生物探针。

与传统荧光标记方法不同,该生物探针是由美国FDA批准的光敏剂前体药物氨基酮戊酸(艾拉)和具有聚集诱导发光特性的四苯基乙烯通过酸敏感的化学键共价缔合而成。该生物探针在正常生理环境下无荧光,经生物素靶向在肿瘤细胞内高效富集后,在溶酶体低pH环境的刺激下,四苯基乙烯由亲水转变为疏水,发生聚集诱导发光而标记肿瘤细胞,同时氨基酮戊酸能在细胞内转化为光敏剂卟啉产生红色荧光而标记肿瘤细胞。这种双重特异性标记肿瘤细胞的荧光探针大大提高了诊断肿瘤细胞的成功率。同时,氨基酮戊酸是美国FDA批准的用于癌症光动力治疗的药物,在635 nm的红光照射下产生大量活性氧,可有效抑制肿瘤细胞的增值,从而实现恶性肿瘤的诊疗一体化。这种肿瘤细胞内双重荧光增强的诊疗探针为恶性肿瘤的个体化、精准化治疗提供了理想的平台,为新型诊疗一体化制剂的开发提供了一种新型的设计模式,相关研究成果发表在Small上。

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    2017-05-31 膀胱癌
  5. [GetPortalCommentsPageByObjectIdResponse(id=1743924, encodeId=249b1e4392494, content=<a href='/topic/show?id=8fcd566e89c' target=_blank style='color:#2F92EE;'>#探针#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56678, encryptionId=8fcd566e89c, topicName=探针)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f76635239744, createdName=lvygwyt2793, createdTime=Mon Jun 19 06:34:00 CST 2017, time=2017-06-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1707768, encodeId=dd4c1e077686c, content=<a href='/topic/show?id=bd958e237a6' target=_blank style='color:#2F92EE;'>#荧光#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=87237, encryptionId=bd958e237a6, topicName=荧光)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ae2931492970, createdName=ms6897892027066920, createdTime=Mon Oct 09 21:34:00 CST 2017, time=2017-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1312963, encodeId=ddae131296359, content=<a href='/topic/show?id=4ce783062c7' target=_blank style='color:#2F92EE;'>#肿瘤细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83062, encryptionId=4ce783062c7, topicName=肿瘤细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c859411, createdName=hmwwww, createdTime=Wed May 31 04:34:00 CST 2017, time=2017-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1328960, encodeId=c12d132896023, content=<a href='/topic/show?id=bb96232801' target=_blank style='color:#2F92EE;'>#ALL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2328, encryptionId=bb96232801, topicName=ALL)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdqq.qlogo.cn/qqapp/1103841572/C2EFD5CFB07FE291138AD4FD0C98E3DE/100, createdBy=e3d52500031, createdName=膀胱癌, createdTime=Wed May 31 04:34:00 CST 2017, time=2017-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1388849, encodeId=85a11388849c2, content=<a href='/topic/show?id=a75a1642585' target=_blank style='color:#2F92EE;'>#SMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, 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=Wed May 31 04:34:00 CST 2017, time=2017-05-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=204463, encodeId=862620446345, content=谢谢分享谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5K46ZAxBHmHsph32KkfsWGwmickB6RsCUD8KruE4vo5CpvXfdu16GBpp4ibh6WJu1o9iatP1LWKDmvmic/0, createdBy=be6f1940165, createdName=1e0ece0dm09(暂无匿称), createdTime=Tue May 30 18:56:28 CST 2017, time=2017-05-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=204140, encodeId=25552041405d, content=学习了,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=550d2008262, createdName=luominglian113, createdTime=Mon May 29 23:04:39 CST 2017, time=2017-05-29, status=1, ipAttribution=)]
    2017-05-31 江川靖瑶
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    2017-05-30 1e0ece0dm09(暂无匿称)

    谢谢分享谢谢分享

    0

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    2017-05-29 luominglian113

    学习了,谢谢分享

    0

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