Cancer Cell:剔除肿瘤起始细胞来抑制肿瘤对化疗产生耐药性

2012-09-13 T.Shen 生物谷

来自西奈山医学院(Mount Sinai School of Medicine)的研究者发现了一种细胞亚群,其或许具有癌症干细胞的特性,而且可以对于化学疗法产生抵抗力,进而参与到肿瘤发育的过程中去。(Credit: ? Jezper / Fotolia) 近日,来自西奈山医学院(Mount Sinai School of Medicine)的研究者发现了一种细胞亚群,其或许具有癌症干细胞的特性,

来自西奈山医学院(Mount Sinai School of Medicine)的研究者发现了一种细胞亚群,其或许具有癌症干细胞的特性,而且可以对于化学疗法产生抵抗力,进而参与到肿瘤发育的过程中去。(Credit: © Jezper / Fotolia)

近日,来自西奈山医学院(Mount Sinai School of Medicine)的研究者发现了一种细胞亚群,其或许具有癌症干细胞的特性,而且可以对于化学疗法产生抵抗力,进而参与到肿瘤发育的过程中去。这项研究或许为我们开发出早期癌症的诊断检测方法提供帮助,相关研究成果刊登在了Cancer Cell杂志上。

化疗耐药性是一种发生于癌症病人治疗期间的常见而且破坏损伤性极大的一种现象。很不幸的是,肿瘤细胞开始确实会对化疗产生反应,可是最终就会变得具有耐药性,随后癌症细胞会继续发生,直至患者死亡。这项新型研究揭示了新发现的癌症干细胞并不能够分化为特异性的细胞类型,尽管其暴露于化学疗法中,但其仍可以进行增殖。

研究者通过对前列腺癌细胞系增加传统化疗的药物包括多西紫杉醇的剂量,从而来产生药物耐受性模型,通过研究,他们识别出了一种可以表达胚胎发育标志物的细胞亚群。另外,这些细胞具有癌症干细胞的功能,包括促进癌细胞生长的能力等。下一步,研究小组会对人类前列腺癌组织样品进行评估,并且发现具有高度转移性肿瘤的病人是否有更多的这种癌症干细胞。

这是研究者首次以药物耐受性为基础,前列腺癌中发现的“癌症干细胞”,研究中,研究者同时也开发了一种针对前列腺癌患者的新疗法,包括标准化疗和两种药理学因子的结合疗法,这将抑制和干细胞发育以及细胞分化相关的信号路径,从而中断肿瘤的发育。结果揭示了化疗可以消除分化的肿瘤细胞,反之信号路径抑制子可以有选择性地剔除癌症干细胞亚群。

研究者Domingo-Domenech博士说道,通过靶位这些新发现的“癌症干细胞”,我们可以攻击其生长的巢穴,而不是单单针对病人症状来进行表面上的治疗。这项研究发现可以为我们对早期癌症诊断带来很大帮助。

编译自:Chemotherapy-Resistant Cancer Stem Cell Could Be 'Achilles' Heel' of Cancer

doi:10.1016/j.ccr.2012.07.016
PMC:
PMID:

Suppression of Acquired Docetaxel Resistance in Prostate Cancer through Depletion of Notch- and Hedgehog-Dependent Tumor-Initiating Cells

Josep Domingo-Domenech, Samuel J. Vidal, Veronica Rodriguez-Bravo, Mireia Castillo-Martin, S. Aidan Quinn, Ruth Rodriguez-Barrueco, Dennis M. Bonal, Elizabeth Charytonowicz, Nataliya Gladoun, Janis de la Iglesia-Vicente, Daniel P. Petrylak, Mitchell C. Benson, Jose M. Silva, Carlos Cordon-Cardo

Acquired resistance to Docetaxel precedes fatality in hormone-refractory prostate cancer (HRPC). However, strategies that target Docetaxel resistant cells remain elusive. Using in vitro and in vivo models, we identified a subpopulation of cells that survive Docetaxel exposure. This subpopulation lacks differentiation markers and HLA class I (HLAI) antigens, while overexpressing the Notch and Hedgehog signaling pathways. These cells were found in prostate cancer tissues and were related to tumor aggressiveness and poor patient prognosis. Notably, targeting Notch and Hedgehog signaling depleted this population through inhibition of the survival molecules AKT and Bcl-2, suggesting a therapeutic strategy for abrogating Docetaxel resistance in HRPC. Finally, these cells exhibited potent tumor-initiating capacity, establishing a link between chemotherapy resistance and tumor progression.

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=1771494, encodeId=fa641e71494ae, content=<a href='/topic/show?id=a2a932e0046' target=_blank style='color:#2F92EE;'>#剔除#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32700, encryptionId=a2a932e0046, topicName=剔除)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f52c38305287, createdName=gao_jian4230, createdTime=Mon Jul 08 13:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1780592, encodeId=6de91e80592a3, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Mon Jul 08 04:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2076643, encodeId=f68a20e66439b, content=<a href='/topic/show?id=4c00549381e' target=_blank style='color:#2F92EE;'>#抑制肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54938, encryptionId=4c00549381e, topicName=抑制肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4736501, createdName=xiaoyang_ambs, createdTime=Thu Jul 25 15:48:00 CST 2013, time=2013-07-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1958829, encodeId=e65a195882917, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sun Feb 10 02:48:00 CST 2013, time=2013-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868596, encodeId=42e7186859619, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Jan 10 05:48:00 CST 2013, time=2013-01-10, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1771494, encodeId=fa641e71494ae, content=<a href='/topic/show?id=a2a932e0046' target=_blank style='color:#2F92EE;'>#剔除#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32700, encryptionId=a2a932e0046, topicName=剔除)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f52c38305287, createdName=gao_jian4230, createdTime=Mon Jul 08 13:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1780592, encodeId=6de91e80592a3, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Mon Jul 08 04:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2076643, encodeId=f68a20e66439b, content=<a href='/topic/show?id=4c00549381e' target=_blank style='color:#2F92EE;'>#抑制肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54938, encryptionId=4c00549381e, topicName=抑制肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4736501, createdName=xiaoyang_ambs, createdTime=Thu Jul 25 15:48:00 CST 2013, time=2013-07-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1958829, encodeId=e65a195882917, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sun Feb 10 02:48:00 CST 2013, time=2013-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868596, encodeId=42e7186859619, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Jan 10 05:48:00 CST 2013, time=2013-01-10, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1771494, encodeId=fa641e71494ae, content=<a href='/topic/show?id=a2a932e0046' target=_blank style='color:#2F92EE;'>#剔除#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32700, encryptionId=a2a932e0046, topicName=剔除)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f52c38305287, createdName=gao_jian4230, createdTime=Mon Jul 08 13:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1780592, encodeId=6de91e80592a3, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Mon Jul 08 04:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2076643, encodeId=f68a20e66439b, content=<a href='/topic/show?id=4c00549381e' target=_blank style='color:#2F92EE;'>#抑制肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54938, encryptionId=4c00549381e, topicName=抑制肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4736501, createdName=xiaoyang_ambs, createdTime=Thu Jul 25 15:48:00 CST 2013, time=2013-07-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1958829, encodeId=e65a195882917, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sun Feb 10 02:48:00 CST 2013, time=2013-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868596, encodeId=42e7186859619, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Jan 10 05:48:00 CST 2013, time=2013-01-10, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1771494, encodeId=fa641e71494ae, content=<a href='/topic/show?id=a2a932e0046' target=_blank style='color:#2F92EE;'>#剔除#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32700, encryptionId=a2a932e0046, topicName=剔除)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f52c38305287, createdName=gao_jian4230, createdTime=Mon Jul 08 13:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1780592, encodeId=6de91e80592a3, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Mon Jul 08 04:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2076643, encodeId=f68a20e66439b, content=<a href='/topic/show?id=4c00549381e' target=_blank style='color:#2F92EE;'>#抑制肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54938, encryptionId=4c00549381e, topicName=抑制肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4736501, createdName=xiaoyang_ambs, createdTime=Thu Jul 25 15:48:00 CST 2013, time=2013-07-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1958829, encodeId=e65a195882917, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sun Feb 10 02:48:00 CST 2013, time=2013-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868596, encodeId=42e7186859619, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Jan 10 05:48:00 CST 2013, time=2013-01-10, status=1, ipAttribution=)]
    2013-02-10 维他命
  5. [GetPortalCommentsPageByObjectIdResponse(id=1771494, encodeId=fa641e71494ae, content=<a href='/topic/show?id=a2a932e0046' target=_blank style='color:#2F92EE;'>#剔除#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32700, encryptionId=a2a932e0046, topicName=剔除)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f52c38305287, createdName=gao_jian4230, createdTime=Mon Jul 08 13:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1780592, encodeId=6de91e80592a3, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Mon Jul 08 04:48:00 CST 2013, time=2013-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2076643, encodeId=f68a20e66439b, content=<a href='/topic/show?id=4c00549381e' target=_blank style='color:#2F92EE;'>#抑制肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54938, encryptionId=4c00549381e, topicName=抑制肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4736501, createdName=xiaoyang_ambs, createdTime=Thu Jul 25 15:48:00 CST 2013, time=2013-07-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1958829, encodeId=e65a195882917, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sun Feb 10 02:48:00 CST 2013, time=2013-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868596, encodeId=42e7186859619, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Jan 10 05:48:00 CST 2013, time=2013-01-10, status=1, ipAttribution=)]