Cell:邹伟平教授揭秘肿瘤免疫与化疗关系

2016-05-04 生物谷 生物谷

成纤维细胞会减少癌细胞内的铂含量,导致化疗药物抵抗   成纤维细胞释放的谷胱甘肽和半胱氨酸会促进癌细胞对铂的抵抗   T细胞可以改变成纤维细胞的谷胱甘肽和半胱氨酸代谢,削弱成纤维细胞介导的癌细胞对化疗药物的抵抗   成纤维细胞和CD8+T细胞共同左右了病人对化疗药物的应答     近日,来自美国密歇根大学的华人科学家邹伟平领导

成纤维细胞会减少癌细胞内的铂含量,导致化疗药物抵抗
 
成纤维细胞释放的谷胱甘肽和半胱氨酸会促进癌细胞对铂的抵抗
 
T细胞可以改变成纤维细胞的谷胱甘肽和半胱氨酸代谢,削弱成纤维细胞介导的癌细胞对化疗药物的抵抗
 
成纤维细胞和CD8+T细胞共同左右了病人对化疗药物的应答
 
 
近日,来自美国密歇根大学的华人科学家邹伟平领导的研究团队在国际学术期刊Cell上发表了一项最新研究进展,他们发现肿瘤微环境中的效应T细胞能够通过削弱基底层细胞介导的化疗抵抗增强化疗药物效果。
 
邹伟平教授是生命科学领域取得杰出成就的华人科学家,其专业领域涉及肿瘤、免疫、炎症以及转化医学,在肿瘤和机体免疫的相互作用研究及其应用方面取得了一系列重要成果。
 
效应T细胞和成纤维细胞是组成肿瘤微环境的两种主要细胞成分。肿瘤微环境被认为是导致癌细胞抵抗化疗药物的重要原因,但效应T细胞和成纤维细胞究竟如何影响化疗药物抵抗过程一直不清楚。
 
在这项最新研究中,研究人员发现成纤维细胞能够减少铂在卵巢癌细胞核内的积累,成为癌细胞抵抗铂类化疗药物的重要原因。与此同时他们还发现成纤维细胞释放的谷胱甘肽和半胱氨酸促进了癌细胞对化疗药物的抵抗。
 
效应T细胞也会影响癌细胞对化疗药物的应答,但是与成纤维细胞不同,CD8+ T细胞通过改变成纤维细胞内谷胱甘肽和半胱氨酸代谢过程削弱了癌细胞对化疗药物的抵抗。研究人员发现CD8+ T细胞产生的IFNγ能够上调γ-谷氨酰转移酶,并通过JAK/STAT1途径抑制胱氨酸和谷氨酸逆向协同转运蛋白的表达控制成纤维细胞内谷胱甘肽和半胱氨酸的产生。
 
除此之外,研究结果还表明,基底层成纤维细胞和CD8+ T细胞的出现分别与卵巢癌病人存活率呈现负相关和正相关关系。
 
这项研究揭示了肿瘤微环境中效应T细胞的一种作用机制:它们通过削弱基底层成纤维细胞介导的化疗药物抵抗增强肿瘤治疗效果。同时,该研究还提示把握化疗与免疫治疗之间的相互关系对于癌症治疗具有非常重要的意义。

原始出处:

Weimin Wang, Ilona Kryczek, Lubomír Dostál, Heng Lin, Lijun Tan, Lili Zhao, Fujia Lu, Shuang Wei, Tomasz Maj, Dongjun Peng, Gong He, Linda Vatan, Wojciech Szeliga, Rork Kuick, Jan Kotarski, Rafa? Tarkowski, Yali Dou, Ramandeep Rattan, Adnan Munkarah, J. Rebecca Liu10,correspondenceemail, Weiping Zou. Effector T Cells Abrogate Stroma-Mediated Chemoresistance in Ovarian Cancer.DOI: http://dx.doi.org/10.1016/j.cell.2016.04.009

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    2016-05-21 维他命
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    2016-05-09 stead

    现在医疗的趋势

    0

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    2016-05-09 stead

    做研究也很好

    0

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    2016-05-09 stead

    真的不错

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1959605, encodeId=a89d195960576, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, 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=Sat May 21 18:40:00 CST 2016, time=2016-05-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869348, encodeId=d70f1869348af, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Wed Aug 24 16:40:00 CST 2016, time=2016-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=85160, encodeId=e6668516047, content=现在医疗的趋势, beContent=null, objectType=article, channel=null, level=null, likeNumber=126, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160509/IMG572FCF18A71237916.jpg, createdBy=d0861720708, createdName=stead, createdTime=Mon May 09 23:40:00 CST 2016, time=2016-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=85161, encodeId=422685161b3, content=做研究也很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=196, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160509/IMG572FCF18A71237916.jpg, createdBy=d0861720708, createdName=stead, createdTime=Mon May 09 23:40:00 CST 2016, time=2016-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=85162, encodeId=0ed9851625c, content=真的不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=140, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160509/IMG572FCF18A71237916.jpg, createdBy=d0861720708, createdName=stead, createdTime=Mon May 09 23:40:00 CST 2016, time=2016-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=85159, encodeId=e9208515924, content=学习了,很好的, beContent=null, objectType=article, channel=null, level=null, likeNumber=129, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160509/IMG572FCF18A71237916.jpg, createdBy=d0861720708, createdName=stead, createdTime=Mon May 09 23:39:00 CST 2016, time=2016-05-09, status=1, ipAttribution=)]
    2016-05-09 stead

    学习了,很好的

    0

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