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FASEB J:科学家找到癌细胞逃跑的“后门”,癌细胞再也无处可躲!

2017-07-28 Heather_z727 来宝网

阿尔伯塔大学的研究人员们发现,辐照乳房脂肪通常会产生炎症反应,促进愈合,但是癌细胞会生存下来,因而得出结论,身体的自然愈合机制可以减少放疗在乳腺癌患者治疗中的效率。



放射治疗阻断癌细胞逃跑的后门】阿尔伯塔大学的研究人员们发现,辐照乳房脂肪通常会产生炎症反应,促进愈合,但是癌细胞会生存下来,因而得出结论,身体的自然愈合机制可以减少放疗在乳腺癌患者治疗中的效率。

来自阿尔伯塔大学的科学家试图寻找一种抵消效果。研究人员表示:“病人在接受乳房切除术之后,通常需要25次每日剂量的放射治疗,以确保所有剩余的乳腺癌细胞全部被破坏,在这一治疗过程中,脂肪组织释放自毒素,一种发起愈合反应的酶,然而,这种反应最终却会保护剩下的癌细胞,使他们能够生存,并且避免破坏。”

作为这项研究的一部分,研究人员将大鼠和人类脂肪组织暴露于与患者放疗时水平相当的辐射剂量中,他们证实这一过程不仅自毒素会增产,而且一般炎症伤口愈合反应加速。因此,他们希望通过实验性自毒素抑制剂可以抵消愈合反应,提高放射治疗的有效性。目前,这种化合物已经处于临床试验阶段。

“癌细胞采用各种策略来避免体内的免疫反应,如果我们能阻止自毒素响应,那么,身体就可以轻易地使用自己的免疫系统攻击残留的癌症细胞并消除它们,特别是当他们已经损坏的时候。”

研究人员总结道:“以自毒素为攻击目标的优势在于它的独特性,我们不是针对癌症细胞本身,而是它的整个微环境,我们希望我们的治疗能够适用于所有类型的乳腺癌。”

原始出处:

Guanmin Meng, et al. Implications for breast cancer treatment from increased autotaxin production in adipose tissue after radiotherapy. The FASEB Journal (2017). DOI: 10.1096/fj.201700159R.

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    2018-06-08 gracezdd
  2. [GetPortalCommentsPageByObjectIdResponse(id=2057936, encodeId=80c6205e9366c, content=<a href='/topic/show?id=3836e24819' target=_blank style='color:#2F92EE;'>#FAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7248, encryptionId=3836e24819, topicName=FAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=872f168, createdName=gracezdd, createdTime=Fri Jun 08 04:25:00 CST 2018, time=2018-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1252309, encodeId=27be1252309ac, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Sun Jul 30 00:25:00 CST 2017, time=2017-07-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=227597, encodeId=ba4622e597d7, content=题目夸张了吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTLh2ATHlLcPyibMOA02gve9TTLKPZrBHsKZCjg0uqW65oOlABxKiabbMYQibW5Q8Gj0NfWyuN5cRgZUQ/132, createdBy=bf951611687, createdName=lindsey3287, createdTime=Sat Jul 29 08:30:56 CST 2017, time=2017-07-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=227182, encodeId=c5a522e18221, content=学习学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzR8ylhYfiaoAUx2BsaYHVia1IKhG3Cg8CT84rBrn6iaVRkyAibJxBcLEXabOQ5p19vWgDe34ib5ErxNgx/0, createdBy=8a701629084, createdName=jihuaijun1112, createdTime=Fri Jul 28 09:38:33 CST 2017, time=2017-07-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=227174, encodeId=309b22e174db, content=不错的,学习了,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NdqKgfW3nMpOkC3jXxiaW2po0PtglY5ZuVjERqKADW4HyMI8bcZXWlKgH7tEP9ULBoBzuQMibia4pr1s9rQPqLvqQJ/0, createdBy=e8c02060444, createdName=中医痴, createdTime=Fri Jul 28 09:32:49 CST 2017, time=2017-07-28, status=1, ipAttribution=)]
    2017-07-30 yxch36
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    2017-07-29 lindsey3287

    题目夸张了吧

    0

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    2017-07-28 jihuaijun1112

    学习学习学习

    0

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    2017-07-28 中医痴

    不错的,学习了,谢谢分享!

    0

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 既往研究表明HER2+及三阴性乳腺癌患者在新辅助化疗后更容易获得病理完全缓解,曲妥珠单抗的出现改善了HER2+乳腺癌患者的生存预后以及新辅助治疗的效果。那到底哪些HER2+的患者对新辅助靶向治疗的效果更佳呢?奥利地一篇前瞻性研究有了新的发现并发表在《Clinical Cancer Research》。 目的:本研究旨在探究新辅助曲妥珠单抗治疗后病理完全缓解率(pCR)是否取决于H

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