ACS Nano:借助纳米颗粒可实现肝癌细胞成像

2016-05-19 佚名 生物谷

图片来自:medicalxpress.com 在多数的恶性肝脏肿瘤的治疗中,手术切除都是第一线的治疗方案。在肝脏肿瘤切除手术中,如果能更精细地区分肿瘤和正常组织的边缘,以及能够观测到微观损伤的区域,对于成功的肿瘤切除手术非常重要。美国纽约纪念斯隆-凯特琳癌症中心的Moritz F. Kircher博士领导的课题组,合成了一种硅包被、表面增强拉曼散射的纳米颗粒(NPs),可以用于肝脏肿瘤成像。

图片来自:medicalxpress.com

在多数的恶性肝脏肿瘤的治疗中,手术切除都是第一线的治疗方案。在肝脏肿瘤切除手术中,如果能更精细地区分肿瘤和正常组织的边缘,以及能够观测到微观损伤的区域,对于成功的肿瘤切除手术非常重要。美国纽约纪念斯隆-凯特琳癌症中心的Moritz F. Kircher博士领导的课题组,合成了一种硅包被、表面增强拉曼散射的纳米颗粒(NPs),可以用于肝脏肿瘤成像。

在临床治疗中,恶性肝脏肿瘤的最有效的方法就是手术切除,然而手术切除常常无法全部切除所有的恶性组织。在正常组织和恶性肿瘤组织的边缘非常难以区分,小块的肿瘤组织的遗存会严重影响术后的恢复。随着腹腔镜检查技术和机器手臂手术操作越来越普及,对于正常组织和肿瘤组织的边缘区分的意义更加重要。虽然现在存在很多种肝脏表明成像的工具,比如核磁共振成像,计算机断层扫描,正电子放射断层造影术,以及超声成像等,都存在着这样或者那样的不足。

美国科学家合成了一种新型的硅包被、表面增强拉曼散射的纳米颗粒(NPs)。这种纳米颗粒有三层的结构,最中心是金的核心,其外一层为一种拉曼报告分子,然后最外层为一层硅原子。虽然这些纳米颗粒的尺寸和表面化学性质并不均一,但是它们在活体小鼠中的行为相当接近,都能被很好的吸入肝脏组织并在正常细胞表面吸附。通过静脉注射这种纳米颗粒后,这种颗粒能够吸附在正常的肝脏组织细胞表面,而不会存在于癌细胞表面。在肝细胞癌和组织细胞肉瘤的小鼠模型中的实验发现,通过静脉注射后,小鼠的肝脏肿瘤可以通过拉曼成像被辨识出来。拉曼成像还可以发现肝脏和脾脏中的微观病变区域。与靛青绿荧光成像比较发现,这种纳米颗粒能够更好地显现出肝脏肿瘤区域,而且假阳性区域更少。

因此作者们认为该纳米可以比其他成像方式更高效、准确地显示出肿瘤组织。该方法的继续成熟,可能有助于临床手术中更精确定位恶性肝脏组织,从而使手术成功率更高,术后恢复更好。

原始出处:

Chrysafis AndreouVolker NeuschmeltingDarjus-Felix Tschaharganeh et al Imaging of Liver Tumors Using Surface-Enhanced Raman Scattering Nanoparticles ACS NANO 2016


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    2016-09-30 1e10c84am36(暂无匿称)

    拜读,好文

    0

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    2016-05-21 yxch36
  4. [GetPortalCommentsPageByObjectIdResponse(id=1976357, encodeId=b52f19e635700, content=<a href='/topic/show?id=0ae08128e66' target=_blank style='color:#2F92EE;'>#肝癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81287, encryptionId=0ae08128e66, topicName=肝癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87f580, createdName=yilong5287542, createdTime=Sun Jan 29 05:48:00 CST 2017, time=2017-01-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=138137, encodeId=8c6c13813e28, content=拜读,好文, beContent=null, objectType=article, channel=null, level=null, likeNumber=125, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Fri Sep 30 15:18:21 CST 2016, time=2016-09-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1252096, encodeId=452a125209694, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Sat May 21 09:48:00 CST 2016, time=2016-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279126, encodeId=7d4112e9126f6, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Sat May 21 09:48:00 CST 2016, time=2016-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1323352, encodeId=df1b132335284, content=<a href='/topic/show?id=d8d5e7476de' target=_blank style='color:#2F92EE;'>#纳米颗粒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77476, encryptionId=d8d5e7476de, topicName=纳米颗粒)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/WQ1WyMBGic8d2fKdCe6Cm3vaRh4X8YnlumYndC46iagNCBl9Df8RtoCaQchnFtZldHUctGJjsgsyutUlu8vPq6yQ/132, createdBy=97862500016, createdName=ms3117646317107274, createdTime=Sat May 21 09:48:00 CST 2016, time=2016-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=86654, encodeId=59ae8665403, content=学习一下!, beContent=null, objectType=article, channel=null, level=null, likeNumber=155, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Fri May 20 07:28:00 CST 2016, time=2016-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=86638, encodeId=2a5386638b2, content=关注关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=160, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6ButEEASz739d2Xm1iaSWZQK8YYkvgp6JkZE0yAndsqGUqracE0WbqhUAmAhLYmpPqqSDbhYdLiazw/0, createdBy=be401724236, createdName=wxsessionc7ba5eb5, createdTime=Thu May 19 22:26:00 CST 2016, time=2016-05-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=86639, encodeId=c5c48663972, content=关注关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=157, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6ButEEASz739d2Xm1iaSWZQK8YYkvgp6JkZE0yAndsqGUqracE0WbqhUAmAhLYmpPqqSDbhYdLiazw/0, createdBy=be401724236, createdName=wxsessionc7ba5eb5, createdTime=Thu May 19 22:26:00 CST 2016, time=2016-05-19, status=1, ipAttribution=)]
    2016-05-21 yaanren
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  6. [GetPortalCommentsPageByObjectIdResponse(id=1976357, encodeId=b52f19e635700, content=<a href='/topic/show?id=0ae08128e66' target=_blank style='color:#2F92EE;'>#肝癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81287, encryptionId=0ae08128e66, topicName=肝癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87f580, createdName=yilong5287542, createdTime=Sun Jan 29 05:48:00 CST 2017, time=2017-01-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=138137, encodeId=8c6c13813e28, content=拜读,好文, beContent=null, objectType=article, channel=null, level=null, likeNumber=125, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzdAIB7UwTkHt6fQkBP8ictliaXtc5gCUmYdAW1sAETC2nhO3q6YjRHkUibyOCtP8ibmXNObTyd63A076/0, createdBy=d4111948983, createdName=1e10c84am36(暂无匿称), createdTime=Fri Sep 30 15:18:21 CST 2016, time=2016-09-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1252096, encodeId=452a125209694, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Sat May 21 09:48:00 CST 2016, time=2016-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279126, encodeId=7d4112e9126f6, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Sat May 21 09:48:00 CST 2016, time=2016-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1323352, encodeId=df1b132335284, content=<a href='/topic/show?id=d8d5e7476de' target=_blank style='color:#2F92EE;'>#纳米颗粒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77476, encryptionId=d8d5e7476de, topicName=纳米颗粒)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/WQ1WyMBGic8d2fKdCe6Cm3vaRh4X8YnlumYndC46iagNCBl9Df8RtoCaQchnFtZldHUctGJjsgsyutUlu8vPq6yQ/132, createdBy=97862500016, createdName=ms3117646317107274, createdTime=Sat May 21 09:48:00 CST 2016, time=2016-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=86654, encodeId=59ae8665403, content=学习一下!, beContent=null, objectType=article, channel=null, level=null, likeNumber=155, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Fri May 20 07:28:00 CST 2016, time=2016-05-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=86638, encodeId=2a5386638b2, content=关注关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=160, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6ButEEASz739d2Xm1iaSWZQK8YYkvgp6JkZE0yAndsqGUqracE0WbqhUAmAhLYmpPqqSDbhYdLiazw/0, createdBy=be401724236, createdName=wxsessionc7ba5eb5, createdTime=Thu May 19 22:26:00 CST 2016, time=2016-05-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=86639, encodeId=c5c48663972, content=关注关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=157, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6ButEEASz739d2Xm1iaSWZQK8YYkvgp6JkZE0yAndsqGUqracE0WbqhUAmAhLYmpPqqSDbhYdLiazw/0, createdBy=be401724236, createdName=wxsessionc7ba5eb5, createdTime=Thu May 19 22:26:00 CST 2016, time=2016-05-19, status=1, ipAttribution=)]
    2016-05-20 1dd8c52fm63(暂无匿称)

    学习一下!

    0

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    2016-05-19 wxsessionc7ba5eb5

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