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年龄相关性黄斑变性的有前途的新的治疗

2014-04-11 EurekAlert EurekAlert

注射IL-18可帮助控制眼内新的血管生成;它可能成为一种针对与年龄有关的黄斑变性(AMD)的新的治疗;IL-18是一种正在进行临床试验的用于治疗某些癌症的蛋白质。“湿性”AMD是在直接位于视网膜后的血管开始生长失控时发生的。这些血管最终可能会出血,并导致近乎即刻的失明。 目前对湿性AMD的治疗聚焦于抑制一种叫做VEGF的分子的活性;VEGF可刺激新血管的生长。抗VEGF疗法指的是以每月一次或每2

注射IL-18可帮助控制眼内新的血管生成;它可能成为一种针对与年龄有关的黄斑变性(AMD)的新的治疗;IL-18是一种正在进行临床试验的用于治疗某些癌症的蛋白质。“湿性”AMD是在直接位于视网膜后的血管开始生长失控时发生的。这些血管最终可能会出血,并导致近乎即刻的失明。

目前对湿性AMD的治疗聚焦于抑制一种叫做VEGF的分子的活性;VEGF可刺激新血管的生长。抗VEGF疗法指的是以每月一次或每2个月一次的频率直接将制剂注射到眼内,它的作用像是用海绵来清扫过多的VEGF,并因此而防止异常血管的萌生。大多数患者的视力在经过这些注射之后会有所改善,但该治疗不存在终末期(某些患者在单只眼中接受过100多次的注射),且患者对该治疗会出现抵抗性。Sarah Doyle及其同事——他们过去曾经证明缺乏IL-18会加剧湿性AMD——在此显示,将IL-18注射到罹患AMD样损伤的小鼠眼睛中可有效地控制血管的生成,并会在没有毒性的情况下促进能加快视网膜组织愈合的免疫过程。

IL-18是通过盖紧VEGF生长本身的盖子而起作用的,从而暗示其功效可能会比那些抗VEGF疗法的功效持续更长的时间。从理论上说,患者在接受另外一次IL-18的注射之前可以维持很长的时间。这些早期的结果提示,IL-18 会成为用于治疗湿性AMD的一种有用的工具。

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1933398, encodeId=6b07193339806, content=<a href='/topic/show?id=79654901349' target=_blank style='color:#2F92EE;'>#年龄相关#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49013, encryptionId=79654901349, topicName=年龄相关)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8143398, createdName=lily1616, createdTime=Sun Jun 08 04:12:00 CST 2014, time=2014-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=10777, encodeId=c9b910e7733, content=目前只是基础研究,不过还是有希望的, beContent=null, objectType=article, channel=null, level=null, likeNumber=149, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2bc892015, createdName=sweetai, createdTime=Thu Jul 31 12:10:00 CST 2014, time=2014-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1837137, encodeId=e480183e1370c, content=<a href='/topic/show?id=3f34e253206' target=_blank style='color:#2F92EE;'>#相关性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=72532, encryptionId=3f34e253206, topicName=相关性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a9de34, createdName=shenxlcyp, createdTime=Wed Jun 25 03:12:00 CST 2014, time=2014-06-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1376739, encodeId=8b2713e6739d2, content=<a href='/topic/show?id=5a7f4901672' target=_blank style='color:#2F92EE;'>#年龄相关性黄斑变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=49016, encryptionId=5a7f4901672, topicName=年龄相关性黄斑变性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f3a0392, createdName=lingqf, createdTime=Sun Apr 13 10:12:00 CST 2014, time=2014-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1463483, encodeId=41fa1463483bd, content=<a href='/topic/show?id=7d27381288e' target=_blank style='color:#2F92EE;'>#变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38128, encryptionId=7d27381288e, topicName=变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f69f6545041, createdName=huangdf, createdTime=Sun Apr 13 10:12:00 CST 2014, time=2014-04-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1525053, encodeId=20b8152505342, content=<a href='/topic/show?id=65e91031337f' target=_blank style='color:#2F92EE;'>#黄斑#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103133, encryptionId=65e91031337f, topicName=黄斑)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=638b11619344, createdName=muzishouyi, createdTime=Sun Apr 13 10:12:00 CST 2014, time=2014-04-13, status=1, ipAttribution=)]
    2014-07-31 sweetai

    目前只是基础研究,不过还是有希望的

    0

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    2014-04-13 huangdf
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    2014-04-13 muzishouyi

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