Oncogene:胶质母细胞瘤分型研究中取得新进展

2018-07-18 佚名 昆明动物研究所

胶质瘤是常见的颅内肿瘤,其中恶性程度最高的是胶质母细胞瘤。异常的快速增殖、极强的浸润性及高度异质性是胶质母细胞瘤的典型特征。患者的平均中值生存期仅为一年左右,是目前人类肿瘤中死亡率极高的肿瘤之一。胶质母细胞瘤难以治疗的重要原因之一是其高度异质性。遗传突变的多样性是其异质性形成的重要原因。而现有以组织病理特征为标准的分级方法无法解释肿瘤异质性带来的一系列问题,如具有相同病理学分级的病人经过相同的治疗

胶质瘤是常见的颅内肿瘤,其中恶性程度最高的是胶质母细胞瘤。异常的快速增殖、极强的浸润性及高度异质性是胶质母细胞瘤的典型特征。患者的平均中值生存期仅为一年左右,是目前人类肿瘤中死亡率极高的肿瘤之一。胶质母细胞瘤难以治疗的重要原因之一是其高度异质性。遗传突变的多样性是其异质性形成的重要原因。而现有以组织病理特征为标准的分级方法无法解释肿瘤异质性带来的一系列问题,如具有相同病理学分级的病人经过相同的治疗手段后产生不同的药物反应和预后,因此要改善对胶质母细胞瘤的诊断和治疗,需要寻找新的分类方法。2008年美国癌症基因组数据库(The Cancer Genome Atlas,TCGA)完成了对胶质母细胞瘤病人的全基因组测序。后续大量癌症基因组数据的获得为胶质母细胞瘤寻找新的分型提供了有利条件。

中国科学院昆明动物研究所赵旭东团队和黄京飞团队合作,通过对TCGA数据库进行数据挖掘,发现高达60%的人胶质母细胞瘤样本包含CDKN2A基因缺失,30%样本具有TP53基因突变,且其通常情况下成“相互排斥”现象。进一步对CDKN2A和TP53突变的胶质母细胞瘤进行分析发现,这两类患者具有截然不同的遗传表达谱,且病人生存曲线呈现出显着差异。以CDKN2A和TP53基因突变对胶质母细胞瘤分型可涵盖80%的胶质母细胞瘤样本,具有显着遗传代表性。综合以上分析提示以CDKN2A和TP53基因作为特征基因对胶质母细胞瘤进行分型的可能。同时该研究通过沉默Tp53和Cdkn2a/b基因,成功地在小鼠上诱导了具有人胶质母细胞瘤典型病理和分子表达特征的胶质母细胞瘤模型。进一步对Tp53和Cdkn2a/b基因突变起源的肿瘤进行表达谱分析,比对结果证实其表达谱与人胶质母细胞瘤具有相同的差异趋势。该动物模型的成功构建为以CDKN2A和TP53基因作为特征基因对胶质母细胞瘤进行分型提供了可靠的模型支持。

该项工作得到国家自然科学基金、中科院先导专项、云南省自然科学基金、云南省高端科技人才等项目资助。

原始出处:

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1772273, encodeId=81b01e7227343, content=<a href='/topic/show?id=c38963544cc' target=_blank style='color:#2F92EE;'>#母细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63544, encryptionId=c38963544cc, topicName=母细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b07438375157, createdName=huperzia, createdTime=Fri Nov 30 05:09:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2052890, encodeId=c2f0205289094, content=<a href='/topic/show?id=ae848406335' target=_blank style='color:#2F92EE;'>#胶质母细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84063, encryptionId=ae848406335, topicName=胶质母细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Mon Sep 10 15:09:00 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2049061, encodeId=c6e3204906108, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Sun Feb 24 15:09:00 CST 2019, time=2019-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1475924, encodeId=766314e592482, content=<a href='/topic/show?id=2bcee797732' target=_blank style='color:#2F92EE;'>#细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77977, encryptionId=2bcee797732, topicName=细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf5e7252474, createdName=spoonycyy, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558124, encodeId=74f91558124ab, content=<a href='/topic/show?id=2f1c13349e7' target=_blank style='color:#2F92EE;'>#Oncogene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13349, encryptionId=2f1c13349e7, topicName=Oncogene)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=仁心济世, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1772273, encodeId=81b01e7227343, content=<a href='/topic/show?id=c38963544cc' target=_blank style='color:#2F92EE;'>#母细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63544, encryptionId=c38963544cc, topicName=母细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b07438375157, createdName=huperzia, createdTime=Fri Nov 30 05:09:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2052890, encodeId=c2f0205289094, content=<a href='/topic/show?id=ae848406335' target=_blank style='color:#2F92EE;'>#胶质母细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84063, encryptionId=ae848406335, topicName=胶质母细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Mon Sep 10 15:09:00 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2049061, encodeId=c6e3204906108, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Sun Feb 24 15:09:00 CST 2019, time=2019-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1475924, encodeId=766314e592482, content=<a href='/topic/show?id=2bcee797732' target=_blank style='color:#2F92EE;'>#细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77977, encryptionId=2bcee797732, topicName=细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf5e7252474, createdName=spoonycyy, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558124, encodeId=74f91558124ab, content=<a href='/topic/show?id=2f1c13349e7' target=_blank style='color:#2F92EE;'>#Oncogene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13349, encryptionId=2f1c13349e7, topicName=Oncogene)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=仁心济世, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1772273, encodeId=81b01e7227343, content=<a href='/topic/show?id=c38963544cc' target=_blank style='color:#2F92EE;'>#母细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63544, encryptionId=c38963544cc, topicName=母细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b07438375157, createdName=huperzia, createdTime=Fri Nov 30 05:09:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2052890, encodeId=c2f0205289094, content=<a href='/topic/show?id=ae848406335' target=_blank style='color:#2F92EE;'>#胶质母细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84063, encryptionId=ae848406335, topicName=胶质母细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Mon Sep 10 15:09:00 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2049061, encodeId=c6e3204906108, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Sun Feb 24 15:09:00 CST 2019, time=2019-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1475924, encodeId=766314e592482, content=<a href='/topic/show?id=2bcee797732' target=_blank style='color:#2F92EE;'>#细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77977, encryptionId=2bcee797732, topicName=细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf5e7252474, createdName=spoonycyy, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558124, encodeId=74f91558124ab, content=<a href='/topic/show?id=2f1c13349e7' target=_blank style='color:#2F92EE;'>#Oncogene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13349, encryptionId=2f1c13349e7, topicName=Oncogene)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=仁心济世, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=)]
    2019-02-24 cy0324
  4. [GetPortalCommentsPageByObjectIdResponse(id=1772273, encodeId=81b01e7227343, content=<a href='/topic/show?id=c38963544cc' target=_blank style='color:#2F92EE;'>#母细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63544, encryptionId=c38963544cc, topicName=母细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b07438375157, createdName=huperzia, createdTime=Fri Nov 30 05:09:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2052890, encodeId=c2f0205289094, content=<a href='/topic/show?id=ae848406335' target=_blank style='color:#2F92EE;'>#胶质母细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84063, encryptionId=ae848406335, topicName=胶质母细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Mon Sep 10 15:09:00 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2049061, encodeId=c6e3204906108, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Sun Feb 24 15:09:00 CST 2019, time=2019-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1475924, encodeId=766314e592482, content=<a href='/topic/show?id=2bcee797732' target=_blank style='color:#2F92EE;'>#细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77977, encryptionId=2bcee797732, topicName=细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf5e7252474, createdName=spoonycyy, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558124, encodeId=74f91558124ab, content=<a href='/topic/show?id=2f1c13349e7' target=_blank style='color:#2F92EE;'>#Oncogene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13349, encryptionId=2f1c13349e7, topicName=Oncogene)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=仁心济世, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1772273, encodeId=81b01e7227343, content=<a href='/topic/show?id=c38963544cc' target=_blank style='color:#2F92EE;'>#母细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=63544, encryptionId=c38963544cc, topicName=母细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b07438375157, createdName=huperzia, createdTime=Fri Nov 30 05:09:00 CST 2018, time=2018-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2052890, encodeId=c2f0205289094, content=<a href='/topic/show?id=ae848406335' target=_blank style='color:#2F92EE;'>#胶质母细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84063, encryptionId=ae848406335, topicName=胶质母细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a691420, createdName=30397604, createdTime=Mon Sep 10 15:09:00 CST 2018, time=2018-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2049061, encodeId=c6e3204906108, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Sun Feb 24 15:09:00 CST 2019, time=2019-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1475924, encodeId=766314e592482, content=<a href='/topic/show?id=2bcee797732' target=_blank style='color:#2F92EE;'>#细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77977, encryptionId=2bcee797732, topicName=细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf5e7252474, createdName=spoonycyy, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558124, encodeId=74f91558124ab, content=<a href='/topic/show?id=2f1c13349e7' target=_blank style='color:#2F92EE;'>#Oncogene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13349, encryptionId=2f1c13349e7, topicName=Oncogene)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=仁心济世, createdTime=Fri Jul 20 04:09:00 CST 2018, time=2018-07-20, status=1, ipAttribution=)]

相关资讯

胶质瘤多学科诊治(MDT)中国专家共识

在国外,多学科综合治疗协作组(MDT)已成为肿瘤治疗的标准。 2008年在中华医学会神经外科学分会的领导下,发表了多学科专家编写的《中国中枢神经系统恶性胶质瘤诊断和治疗共识》,随在2011年进行了更新和扩容编写成指南,并于2015年再次更新,新指南推荐MDT模式治疗脑胶质瘤。

CLIN CANCER RES:Fibulin-3抗体靶向治疗胶质瘤

胶质瘤分子异质性和侵袭能力是成功治疗这种恶性肿瘤的两大主要障碍。靶向肿瘤细胞外基质(ECM)可能有助于克服这两大障碍,因为肿瘤细胞分泌的ECM分子是肿瘤侵袭的关键。Fibulin-3是构成胶质瘤ECM骨架的糖蛋白,通过启动Notch和NFκB信号促进肿瘤进展。CLIN CANCER RES近期发表了一篇文章,研究靶向ECM中的信号分子治疗胶质瘤。

Radiology: DCE和DSE MR成像在大脑胶质瘤的多种中心标准化评估

目的:通过多中心获取并分析动态增强(DCE)及动态磁敏感增强(DSE)标准MR成像序列的可行性,以2016年世界卫生组织肿瘤新的分类为依据,预测并验证肿瘤级别的准确性,并将结果发表在Radiology上。

CLIN CANCER RES:IDO1抑制剂增强放疗联合PD-1阻断对晚期胶质瘤的疗效

胶质瘤是成人恶性程度最高的原发脑肿瘤,中位生存期为15到20个月。各种治疗方案的临床Ⅲ期试验均对如何治疗胶质瘤进行了研究,包括近期的免疫检查点抑制剂,纳武单抗(抗PD-1)。该疗法并未改善胶质瘤复发患者的预后。免疫检查点抑制治疗在其他肿瘤中有良好的前景,因此胶质瘤的治疗不能放弃这一方案,目前的研究正在评估这一疗法联合其他药物的治疗效果。CLIN CANCER RES近期发表了一篇文章,研究这一问题

JAMA ONCOL:美国成人胶质瘤发病率以及不同种族之间的预后差别

胶质瘤是美国最常见的恶性脑肿瘤,其发病率在不同年龄,性别和种族之间并不相同,脑肿瘤确诊后的生存情况也存在差异。JAMA ONCOL近期发表了一篇文章,研究不同种族胶质瘤发病率和生存情况。

Radiology:动态对比增强和动态敏感对比磁共振在脑胶质瘤的多中心标准化评估。

评估在多中心临床环境下动态对比增强(DCE)和动态磁敏感对比(DSC)磁共振(MR)成像采集和分析的标准化方案的可行性,并根据新的世界卫生组织2016年分类验证其对于胶质瘤级别预测的准确性。