Baidu
map

Nat Chem Bio:癌症免疫疗法新突破

2018-09-28 佚名 细胞

身体的免疫系统是抵御疾病的有效武器,而免疫疗法则是目前治疗癌症和其他疾病的研究前沿。

身体的免疫系统是抵御疾病的有效武器,而免疫疗法则是目前治疗癌症和其他疾病的研究前沿。

最近,圣母大学的研究人员发现了与两种截然不同的肽抗原与一种T细胞受体(TCR)发生反应的具体特征,这为优化分子结构以开发免疫疗法提供了新的线索。

相关结果发表在最近一期的《Nature Chemical Biology》杂志上。

“我们发现T细胞受体可能比我们之前设想的更具交叉反应性”主要作者Timothy Riley说,他是Baker的前研究生助理,现在是创业公司Structured Immunity的联合创始人、科学官和负责人,这家公司通过Notre Dame的IDEA中心孵化,旨在降低早期免疫治疗的风险。

T细胞是白细胞的一种亚型,负责感知机体处于健康状态还是受到了感染,但他们经常忽视体内癌细胞的存在。在T细胞免疫疗法中,通过给癌细胞增加能够被机体免疫系统识别的受体分子,进而使得T细胞寻找并破坏特定的细胞。虽然这种治疗手段在某些情况下是有效的,但它往往会对健康细胞造成影响。因此,研究人员希望通过预测反应性并尽可能地降低非特异性反应。

在这一研究中,作者发现一种叫做DMF5的TCR分子能够与多种不同类型的肽段结合,。两种不同的肽抗原在与DMF5结合之后,刺激受体和诱导免疫应答方面具有同样的效果。 “只要结合发生,它的工作方式并不重要,”作者说到。

总之,虽然此前研究已经了解到TCR可以攻击健康细胞的事实,但这一研究充分解释了其中的原因。

原始出处:
Timothy P. Riley, Lance M. Hellman, Marvin H. Gee,et al.. T cell receptor cross-reactivity expanded by dramatic peptide–MHC adaptability. Nature Chemical Biology, 2018; 14 (10): 934 DOI: 10.1038/s41589-018-0130-4

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 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1724989, encodeId=62bf1e249896d, content=<a href='/topic/show?id=9ee758586bb' target=_blank style='color:#2F92EE;'>#新突破#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58586, encryptionId=9ee758586bb, topicName=新突破)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=792a33728807, createdName=zxxiang, createdTime=Fri Sep 06 05:25:00 CST 2019, time=2019-09-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883336, encodeId=2070188333643, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri May 10 03:25:00 CST 2019, time=2019-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918306, encodeId=b4ff1918306d7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri Dec 07 21:25:00 CST 2018, time=2018-12-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=347149, encodeId=704b34e14997, content=不知道真实如何, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/RcTnA7USB0BHYVDd4N5jXBwvfhPMQt8C9XM1nhvxDG7YL5Afnib1CEaGZAnNDaicQtDFpwO8DKLuicLsFXDrAzYow/132, createdBy=27ea2111787, createdName=佳虎, createdTime=Fri Sep 28 21:51:58 CST 2018, time=2018-09-28, status=1, ipAttribution=)]
    2019-09-06 zxxiang
  2. [GetPortalCommentsPageByObjectIdResponse(id=1724989, encodeId=62bf1e249896d, content=<a href='/topic/show?id=9ee758586bb' target=_blank style='color:#2F92EE;'>#新突破#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58586, encryptionId=9ee758586bb, topicName=新突破)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=792a33728807, createdName=zxxiang, createdTime=Fri Sep 06 05:25:00 CST 2019, time=2019-09-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883336, encodeId=2070188333643, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri May 10 03:25:00 CST 2019, time=2019-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918306, encodeId=b4ff1918306d7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri Dec 07 21:25:00 CST 2018, time=2018-12-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=347149, encodeId=704b34e14997, content=不知道真实如何, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/RcTnA7USB0BHYVDd4N5jXBwvfhPMQt8C9XM1nhvxDG7YL5Afnib1CEaGZAnNDaicQtDFpwO8DKLuicLsFXDrAzYow/132, createdBy=27ea2111787, createdName=佳虎, createdTime=Fri Sep 28 21:51:58 CST 2018, time=2018-09-28, status=1, ipAttribution=)]
    2019-05-10 liye789132251
  3. [GetPortalCommentsPageByObjectIdResponse(id=1724989, encodeId=62bf1e249896d, content=<a href='/topic/show?id=9ee758586bb' target=_blank style='color:#2F92EE;'>#新突破#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58586, encryptionId=9ee758586bb, topicName=新突破)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=792a33728807, createdName=zxxiang, createdTime=Fri Sep 06 05:25:00 CST 2019, time=2019-09-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883336, encodeId=2070188333643, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri May 10 03:25:00 CST 2019, time=2019-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918306, encodeId=b4ff1918306d7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri Dec 07 21:25:00 CST 2018, time=2018-12-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=347149, encodeId=704b34e14997, content=不知道真实如何, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/RcTnA7USB0BHYVDd4N5jXBwvfhPMQt8C9XM1nhvxDG7YL5Afnib1CEaGZAnNDaicQtDFpwO8DKLuicLsFXDrAzYow/132, createdBy=27ea2111787, createdName=佳虎, createdTime=Fri Sep 28 21:51:58 CST 2018, time=2018-09-28, status=1, ipAttribution=)]
    2018-12-07 sunylz
  4. [GetPortalCommentsPageByObjectIdResponse(id=1724989, encodeId=62bf1e249896d, content=<a href='/topic/show?id=9ee758586bb' target=_blank style='color:#2F92EE;'>#新突破#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58586, encryptionId=9ee758586bb, topicName=新突破)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=792a33728807, createdName=zxxiang, createdTime=Fri Sep 06 05:25:00 CST 2019, time=2019-09-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1883336, encodeId=2070188333643, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri May 10 03:25:00 CST 2019, time=2019-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918306, encodeId=b4ff1918306d7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Fri Dec 07 21:25:00 CST 2018, time=2018-12-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=347149, encodeId=704b34e14997, content=不知道真实如何, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/RcTnA7USB0BHYVDd4N5jXBwvfhPMQt8C9XM1nhvxDG7YL5Afnib1CEaGZAnNDaicQtDFpwO8DKLuicLsFXDrAzYow/132, createdBy=27ea2111787, createdName=佳虎, createdTime=Fri Sep 28 21:51:58 CST 2018, time=2018-09-28, status=1, ipAttribution=)]
    2018-09-28 佳虎

    不知道真实如何

    0

相关资讯

Cell:免疫玩家助力癌症免疫疗法

癌症免疫疗法——增强患者自身免疫系统,使其更好地抗击癌细胞。这种疗法在一些过去难以治愈的癌症中显示了巨大的前景。然而,免疫疗法并非对每个人都起作用,其中原因总是搞不清楚。

Plos Med: 吃“不健康”食物,成“不健康”人...

关于营养与癌症风险之间的联系一直是一复杂的话题。当然,很明显健康的食物要比不健康的食物更好。但是食物有多健康或不健康以及它的影响到底有多大是一直是一个难以量化的问题。考虑到这一点,英国食品标准局已经开发出一种营养素分析系统(FSAm-NPS),该系统正是为此而使用的。

J Biol Chem:“合作”加速癌症和衰老

印第安纳大学分子生物学家的一项新研究发现,细胞的生理过程似乎对衰老相关染色体化学“帽子”(端粒)的生长和收缩都起到了增效作用。

袁凤兰教授:30岁以后要防6种癌

90%的癌症早期没有症状,90%的早期癌症靠专业普查来发现,90%的癌症患者有了自觉症状到医院就诊时已经是中晚期,失去了治愈的最佳时期。”因此,中国医学科学院肿瘤医院原防癌科主任袁凤兰教授认为,进行定期专业的癌症检查,现在仍是人类抵御癌症的最佳方法。30岁后,人身体的各种机能都开始走下坡路,以下几种常见肿瘤应当引起重视。

Sci Trans Med:如何增加癌症患者有益菌群?

感染是异基因造血干细胞移植过程中最常见和严重的并发症之一,癌症患者通常需要服用大量的抗生素,而抗生素治疗会破坏患者肠道微生物群的多样性,导致许多有益微生物的丧失。近日,纪念斯隆凯特琳癌症中心的研究人员找到一种安全有效的方法——自体粪便微生物群移植(auto-FMT),可以帮助该手术患者补充有益的肠道细菌。

Cancers of the Head&Neck:是真的么?常搭飞机癌症风险会增高

从某种程度上说,如何鉴别由飞行引起的癌症风险仍是一个模糊的研究领域。以甲状腺癌为例,航空公司的机组人员是否较普通人群相比具有更高的患病风险?最新发表在Cancers of the Head& Neck 期刊上的一篇综述文章将为我们解释这一问题。

Baidu
map
Baidu
map
Baidu
map