Baidu
map

Science子刊发现肺癌新亚型 有助开发精准治疗新方法

2016-08-05 佚名 生物谷

肺癌是导致癌症死亡的最常见癌症类型,占所有肿瘤相关死亡的大约三分之一。其中腺癌(一种非小细胞肺癌)占所有诊断肺癌的大约40%,但是目前治疗这种癌症的有效方法仍然很少。 最近哈佛医学院的研究人员发现了一种人类肺腺癌的新亚型。这项研究有助于确定哪些肺癌高风险病人可能适于选用新的治疗方法来抑制疾病进展。相关研究结果发表在国际学术期刊Science Translational Medicine上。

肺癌是导致癌症死亡的最常见癌症类型,占所有肿瘤相关死亡的大约三分之一。其中腺癌(一种非小细胞肺癌)占所有诊断肺癌的大约40%,但是目前治疗这种癌症的有效方法仍然很少。

最近哈佛医学院的研究人员发现了一种人类肺腺癌的新亚型。这项研究有助于确定哪些肺癌高风险病人可能适于选用新的治疗方法来抑制疾病进展。相关研究结果发表在国际学术期刊Science Translational Medicine上。

文章通讯作者Levantini表示:“想要在肺癌治疗方法上取得进展就需要对这种疾病的分子起源有更多的了解。理解不同肺癌之间的差异也有助于治疗策略的创新,帮助我们克服药物抵抗,复发以及疾病发展等难题。”

在之前的研究中研究人员发现非小细胞肺癌细胞经常不表达一种叫做C/EBPa的转录因子,研究人员推测C/EBPa可能在正常细胞中发挥肿瘤抑制因子的作用,但是C/EBPa缺失通过何种机制促进肺癌形成仍不清楚。

通过一系列体外实验研究人员证明C/EBPa确实是一种肿瘤抑制因子,它能够限制另一种触发和维持肿瘤生长的分子的表达。这种叫做BMI1的癌蛋白已经被发现参与结肠癌白血病以及乳腺癌胃癌等多种癌症的发生发展。

研究人员在一个人类腺癌细胞系中过表达了C/EBPa,发现BMI1的表达出现显著下降,他们又对261名非小细胞肺癌病人的组织样本进行了分析,也发现C/EBPa表达水平较低的组织样本中有超过80%为BMI1表达阳性。除此之外,C/EBPa不表达或表达水平很低并且BMI1表达水平相对较低的病人更易存活,研究人员认为该现象有重要的诊断价值。

研究人员还在C/EBPa缺失的小鼠模型上对上述结果进行了验证,并且他们发现在体内抑制BMI1的表达能够完全抑制肿瘤形成,阻止肿瘤生长。

该研究表明缺少C/EBPa表达的肺癌病人或可受益于抑制BMI1表达的治疗方法。因此找到能够调节BMI1表达的调控因子将有重要的临床意义。

原始出处

Targeted BMI1 inhibition impairs tumor growth in lung adenocarcinomas with low CEBPα expression

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=1903148, encodeId=334c1903148dc, content=<a href='/topic/show?id=e1b0583884b' target=_blank style='color:#2F92EE;'>#新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58388, encryptionId=e1b0583884b, topicName=新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c22f171, createdName=kord1982, createdTime=Wed Sep 21 06:05:00 CST 2016, time=2016-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083150, encodeId=49d1208315097, content=<a href='/topic/show?id=79e264641cd' target=_blank style='color:#2F92EE;'>#治疗新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64641, encryptionId=79e264641cd, topicName=治疗新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=793a2500200, createdName=12498e5fm12(暂无昵称), createdTime=Thu Sep 22 00:05:00 CST 2016, time=2016-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1322422, encodeId=b7a413224227e, content=<a href='/topic/show?id=ebfce6381b8' target=_blank style='color:#2F92EE;'>#精准治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76381, encryptionId=ebfce6381b8, topicName=精准治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2c31495, createdName=liuyg0228, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375305, encodeId=95a213e530580, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1403058, encodeId=cefc14030587f, content=<a href='/topic/show?id=ebbde6353be' target=_blank style='color:#2F92EE;'>#精准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76353, encryptionId=ebbde6353be, topicName=精准)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epQX9hfEIBiaPg0e9KvLYVBCSGYydH6K6OQxBh3RaOC0TYP9HYy2v0XdHib1LFnZNU5Siak0P8oh8Aqw/132, createdBy=acd92440184, createdName=shijzhiewnjhch, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1903148, encodeId=334c1903148dc, content=<a href='/topic/show?id=e1b0583884b' target=_blank style='color:#2F92EE;'>#新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58388, encryptionId=e1b0583884b, topicName=新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c22f171, createdName=kord1982, createdTime=Wed Sep 21 06:05:00 CST 2016, time=2016-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083150, encodeId=49d1208315097, content=<a href='/topic/show?id=79e264641cd' target=_blank style='color:#2F92EE;'>#治疗新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64641, encryptionId=79e264641cd, topicName=治疗新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=793a2500200, createdName=12498e5fm12(暂无昵称), createdTime=Thu Sep 22 00:05:00 CST 2016, time=2016-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1322422, encodeId=b7a413224227e, content=<a href='/topic/show?id=ebfce6381b8' target=_blank style='color:#2F92EE;'>#精准治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76381, encryptionId=ebfce6381b8, topicName=精准治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2c31495, createdName=liuyg0228, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375305, encodeId=95a213e530580, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1403058, encodeId=cefc14030587f, content=<a href='/topic/show?id=ebbde6353be' target=_blank style='color:#2F92EE;'>#精准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76353, encryptionId=ebbde6353be, topicName=精准)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epQX9hfEIBiaPg0e9KvLYVBCSGYydH6K6OQxBh3RaOC0TYP9HYy2v0XdHib1LFnZNU5Siak0P8oh8Aqw/132, createdBy=acd92440184, createdName=shijzhiewnjhch, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1903148, encodeId=334c1903148dc, content=<a href='/topic/show?id=e1b0583884b' target=_blank style='color:#2F92EE;'>#新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58388, encryptionId=e1b0583884b, topicName=新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c22f171, createdName=kord1982, createdTime=Wed Sep 21 06:05:00 CST 2016, time=2016-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083150, encodeId=49d1208315097, content=<a href='/topic/show?id=79e264641cd' target=_blank style='color:#2F92EE;'>#治疗新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64641, encryptionId=79e264641cd, topicName=治疗新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=793a2500200, createdName=12498e5fm12(暂无昵称), createdTime=Thu Sep 22 00:05:00 CST 2016, time=2016-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1322422, encodeId=b7a413224227e, content=<a href='/topic/show?id=ebfce6381b8' target=_blank style='color:#2F92EE;'>#精准治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76381, encryptionId=ebfce6381b8, topicName=精准治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2c31495, createdName=liuyg0228, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375305, encodeId=95a213e530580, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1403058, encodeId=cefc14030587f, content=<a href='/topic/show?id=ebbde6353be' target=_blank style='color:#2F92EE;'>#精准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76353, encryptionId=ebbde6353be, topicName=精准)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epQX9hfEIBiaPg0e9KvLYVBCSGYydH6K6OQxBh3RaOC0TYP9HYy2v0XdHib1LFnZNU5Siak0P8oh8Aqw/132, createdBy=acd92440184, createdName=shijzhiewnjhch, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1903148, encodeId=334c1903148dc, content=<a href='/topic/show?id=e1b0583884b' target=_blank style='color:#2F92EE;'>#新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58388, encryptionId=e1b0583884b, topicName=新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c22f171, createdName=kord1982, createdTime=Wed Sep 21 06:05:00 CST 2016, time=2016-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083150, encodeId=49d1208315097, content=<a href='/topic/show?id=79e264641cd' target=_blank style='color:#2F92EE;'>#治疗新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64641, encryptionId=79e264641cd, topicName=治疗新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=793a2500200, createdName=12498e5fm12(暂无昵称), createdTime=Thu Sep 22 00:05:00 CST 2016, time=2016-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1322422, encodeId=b7a413224227e, content=<a href='/topic/show?id=ebfce6381b8' target=_blank style='color:#2F92EE;'>#精准治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76381, encryptionId=ebfce6381b8, topicName=精准治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2c31495, createdName=liuyg0228, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375305, encodeId=95a213e530580, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1403058, encodeId=cefc14030587f, content=<a href='/topic/show?id=ebbde6353be' target=_blank style='color:#2F92EE;'>#精准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76353, encryptionId=ebbde6353be, topicName=精准)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epQX9hfEIBiaPg0e9KvLYVBCSGYydH6K6OQxBh3RaOC0TYP9HYy2v0XdHib1LFnZNU5Siak0P8oh8Aqw/132, createdBy=acd92440184, createdName=shijzhiewnjhch, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=)]
    2016-08-07 jichang
  5. [GetPortalCommentsPageByObjectIdResponse(id=1903148, encodeId=334c1903148dc, content=<a href='/topic/show?id=e1b0583884b' target=_blank style='color:#2F92EE;'>#新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58388, encryptionId=e1b0583884b, topicName=新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c22f171, createdName=kord1982, createdTime=Wed Sep 21 06:05:00 CST 2016, time=2016-09-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083150, encodeId=49d1208315097, content=<a href='/topic/show?id=79e264641cd' target=_blank style='color:#2F92EE;'>#治疗新方法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64641, encryptionId=79e264641cd, topicName=治疗新方法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=793a2500200, createdName=12498e5fm12(暂无昵称), createdTime=Thu Sep 22 00:05:00 CST 2016, time=2016-09-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1322422, encodeId=b7a413224227e, content=<a href='/topic/show?id=ebfce6381b8' target=_blank style='color:#2F92EE;'>#精准治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76381, encryptionId=ebfce6381b8, topicName=精准治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2c31495, createdName=liuyg0228, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375305, encodeId=95a213e530580, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1403058, encodeId=cefc14030587f, content=<a href='/topic/show?id=ebbde6353be' target=_blank style='color:#2F92EE;'>#精准#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76353, encryptionId=ebbde6353be, topicName=精准)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83epQX9hfEIBiaPg0e9KvLYVBCSGYydH6K6OQxBh3RaOC0TYP9HYy2v0XdHib1LFnZNU5Siak0P8oh8Aqw/132, createdBy=acd92440184, createdName=shijzhiewnjhch, createdTime=Sun Aug 07 09:05:00 CST 2016, time=2016-08-07, status=1, ipAttribution=)]

相关资讯

Cell Rep:科学家找到靶向KRAS途径治疗肺癌的新靶点

美国西南医学中心的研究人员最近发现了一条通过靶向KRAS基因治疗肺癌的新途径。KRAS基因是人类癌症中最常见的突变基因之一,也是很难成功进行靶向治疗的一个基因。 之前研究表明KRAS基因的编码产物K-Ras会影响细胞分裂,因此KRAS基因发生突变会导致正常细胞出现增殖失控从而发生癌变。 突变的KRAS不仅能够促进肿瘤生长,还会帮助肺癌细胞存活。但是目前仍然没有抑制突变KRAS的有效的临床用

第 8 版肺癌分期建议强势来袭!看这一篇就掌握

肺癌的分期是所有肿瘤分期中比较复杂的,目前世界各国使用的 UICC 第 7 版肺癌 TNM 分期标准是国际肺癌协会(IASLC) 2009 年颁发的,至今有 6 年未更新。IASLC 此次分期纳入了全球 1999~2010 年期间的 77156 例肺癌患者(亚洲占 79%),分析由华盛顿癌症研究和生物分析组织完成。前期研究成果——新第 8 版肺癌 TNM 分期建议已于今年刊登于 Jour

全球首例!脂肪干细胞治愈肺癌患者术后渗漏并发症

詹妮。 里奥格兰特(Jeneen Leogrande)曾遭遇肺癌术后渗漏并发症折磨长达3年之久。在几乎崩溃绝望之际,她利用偶然的一次机会,勇敢尝试使用干细胞疗法来修补术后瘘管,最终成功“死里逃生”。这是干细胞修补肺癌术后瘘管的全球首个成功案例,振奋人心。 2011年平安夜,詹妮正处于肺癌全切术后恢复期,却开始出现术后渗出并发症。该并发症并非出乎意料,因为她之前接受过右肺全切术,并清扫

重磅!中国有望开展全球CRISPR基因编辑人体试验,治疗肺癌

一个月前,NIH下属的重组DNA咨询委员会分析了CRISPR-Cas9技术的潜力、安全性、以及潜在的伦理问题后,一致批准它应用于人体。消息一经放出,人们也纷纷猜测第一个人体试验究竟会由哪家科研机构完成。 今天,Nature主页传来重磅消息。位于成都的四川大学华西医院有望率先进行全球首个将CRISPR-Cas9基因编辑技术应用到人体的试验。据华西医院的卢铀教授介绍,这项临床试验已在今年7月6日通过

CELL METAB:别拿生命熬夜,当心熬成肺癌!

近日,来自麻省理工大学研究团队发表于7月28日的Cell Metabolism上的研究表示,生物节律紊乱可导致生物钟基因Per2和Bmal1对促癌症蛋白c-myc抑制作用减弱,最终促使肿瘤发生。这一研究为癌症与生物节律紊乱关系又提供了一个新机制。

Baidu
map
Baidu
map
Baidu
map