Baidu
map

Science:细菌会伴随肿瘤的转移而转移!

2017-11-29 Flora “生物探索”公众号

哈佛大学的科学家们最新发现:结肠癌中的常见细菌,会伴随着肿瘤的转移而转移。而且当采取抗生素对抗这些细菌时,小鼠体内的肿瘤扩散、转移会得到控制。他们推测:这类细菌与肿瘤成功转移有很大的关联性。

哈佛大学的科学家们最新发现:结肠癌中的常见细菌,会伴随着肿瘤的转移而转移。而且当采取抗生素对抗这些细菌时,小鼠体内的肿瘤扩散、转移会得到控制。他们推测:这类细菌与肿瘤成功转移有很大的关联性。

细菌与人类共生,这已经不是什么秘密。现在,越来越来多的疾病被证实与微生物有关,包括肿瘤。

2017年9月,《Science》曾发表一篇文章揭示:胰腺癌中存在细菌。更糟糕的是,这些细菌会“消化”化疗药物,影响治疗效果,从而导致肿瘤细胞对药物产生耐药性。在这之前已有实验室发现细菌与多种肿瘤细胞“共存”的现象,这让科学家们开始怀疑:细菌是否是肿瘤形成的原因?

11月23日,同样是Science上的文章再一次指明,结肠癌中也存在细菌,而且,最常见菌种——具核梭杆菌(Fusobacterium nucleatum)会随着肿瘤的转移在患者体内传播。

来自于哈佛大学的研究团队采集了结肠癌患者的结肠、肝脏样本,分析发现:当结肠处的肿瘤组织携带细菌时,肝脏处的肿瘤样本也同样存在相同类型的细菌。反过来,当结肠肿瘤未携带细菌时,转移至肝脏组织中的肿瘤细胞也同样没有细菌潜伏。

这一发现让科学家们很意外。他们将患者的肿瘤组织植入健康小鼠体内。结果显示,只有携带细菌的肿瘤才能够在小鼠体内生长、扩增。随后,研究人员对这批小鼠进行抗生素治疗(消灭具核梭杆菌),发现小鼠体内的肿瘤生长减缓了。

综合这些结果,研究团队认为,当肿瘤转移时,细菌也会跟着转移。他们推测,细菌有助于肿瘤在新部位“落地生根”。当然,还需要很多的研究来明确细菌是否真的在肿瘤发展中发挥了作用。

原始出处:Bullman, S., Pedamallu, C. S., Sicinska, E., et al. Analysis of Fusobacterium persistence and antibiotic response in colorectal cancer. Science.Nov 23, 2017

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=266695, encodeId=d4d7266695c7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Mon Dec 04 10:01:45 CST 2017, time=2017-12-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375728, encodeId=678013e57286d, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Fri Dec 01 14:02:00 CST 2017, time=2017-12-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265624, encodeId=900726562444, content=阅读了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo5nmIH5IQqCKjJgSCuicPWUWOUcdqt1ROPnEiaOYN4pSHibDv8la3OxNLalvuvUXn8clpJlrpuyTpckgt9OPkeSSdT/0, createdBy=8fd71930726, createdName=半夏微凉, createdTime=Thu Nov 30 10:31:22 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265585, encodeId=0f7b26558578, content=好好文章学习了, 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/oLAjfB7s1ib06iaV3D9Tg5K1RUfOKQohib4bXhDtxVgOA9VcKY1LUZkCOmr0v3WupxANz2ibibNHkdevtSruvrhyI29IjXdtvUV48/0, createdBy=6ff82057534, createdName=139****5926, createdTime=Thu Nov 30 09:13:47 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265469, encodeId=6aba2654699b, content=厉害了我的哥, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Thu Nov 30 00:11:32 CST 2017, time=2017-11-30, status=1, ipAttribution=)]
    2017-12-04 大爰

    学习了谢谢分享!!

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=266695, encodeId=d4d7266695c7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Mon Dec 04 10:01:45 CST 2017, time=2017-12-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375728, encodeId=678013e57286d, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Fri Dec 01 14:02:00 CST 2017, time=2017-12-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265624, encodeId=900726562444, content=阅读了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo5nmIH5IQqCKjJgSCuicPWUWOUcdqt1ROPnEiaOYN4pSHibDv8la3OxNLalvuvUXn8clpJlrpuyTpckgt9OPkeSSdT/0, createdBy=8fd71930726, createdName=半夏微凉, createdTime=Thu Nov 30 10:31:22 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265585, encodeId=0f7b26558578, content=好好文章学习了, 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/oLAjfB7s1ib06iaV3D9Tg5K1RUfOKQohib4bXhDtxVgOA9VcKY1LUZkCOmr0v3WupxANz2ibibNHkdevtSruvrhyI29IjXdtvUV48/0, createdBy=6ff82057534, createdName=139****5926, createdTime=Thu Nov 30 09:13:47 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265469, encodeId=6aba2654699b, content=厉害了我的哥, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Thu Nov 30 00:11:32 CST 2017, time=2017-11-30, status=1, ipAttribution=)]
    2017-12-01 jichang
  3. [GetPortalCommentsPageByObjectIdResponse(id=266695, encodeId=d4d7266695c7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Mon Dec 04 10:01:45 CST 2017, time=2017-12-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375728, encodeId=678013e57286d, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Fri Dec 01 14:02:00 CST 2017, time=2017-12-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265624, encodeId=900726562444, content=阅读了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo5nmIH5IQqCKjJgSCuicPWUWOUcdqt1ROPnEiaOYN4pSHibDv8la3OxNLalvuvUXn8clpJlrpuyTpckgt9OPkeSSdT/0, createdBy=8fd71930726, createdName=半夏微凉, createdTime=Thu Nov 30 10:31:22 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265585, encodeId=0f7b26558578, content=好好文章学习了, 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/oLAjfB7s1ib06iaV3D9Tg5K1RUfOKQohib4bXhDtxVgOA9VcKY1LUZkCOmr0v3WupxANz2ibibNHkdevtSruvrhyI29IjXdtvUV48/0, createdBy=6ff82057534, createdName=139****5926, createdTime=Thu Nov 30 09:13:47 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265469, encodeId=6aba2654699b, content=厉害了我的哥, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Thu Nov 30 00:11:32 CST 2017, time=2017-11-30, status=1, ipAttribution=)]
    2017-11-30 半夏微凉

    阅读了谢谢分享

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=266695, encodeId=d4d7266695c7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Mon Dec 04 10:01:45 CST 2017, time=2017-12-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375728, encodeId=678013e57286d, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Fri Dec 01 14:02:00 CST 2017, time=2017-12-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265624, encodeId=900726562444, content=阅读了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo5nmIH5IQqCKjJgSCuicPWUWOUcdqt1ROPnEiaOYN4pSHibDv8la3OxNLalvuvUXn8clpJlrpuyTpckgt9OPkeSSdT/0, createdBy=8fd71930726, createdName=半夏微凉, createdTime=Thu Nov 30 10:31:22 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265585, encodeId=0f7b26558578, content=好好文章学习了, 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/oLAjfB7s1ib06iaV3D9Tg5K1RUfOKQohib4bXhDtxVgOA9VcKY1LUZkCOmr0v3WupxANz2ibibNHkdevtSruvrhyI29IjXdtvUV48/0, createdBy=6ff82057534, createdName=139****5926, createdTime=Thu Nov 30 09:13:47 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265469, encodeId=6aba2654699b, content=厉害了我的哥, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Thu Nov 30 00:11:32 CST 2017, time=2017-11-30, status=1, ipAttribution=)]
    2017-11-30 139****5926

    好好文章学习了

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=266695, encodeId=d4d7266695c7, content=学习了谢谢分享!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20200816/e4675a86ea694f12b82202b320dc2654/12f6b900498349e994ce8f516a584d6a.jpg, createdBy=09431951290, createdName=大爰, createdTime=Mon Dec 04 10:01:45 CST 2017, time=2017-12-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375728, encodeId=678013e57286d, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Fri Dec 01 14:02:00 CST 2017, time=2017-12-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265624, encodeId=900726562444, content=阅读了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo5nmIH5IQqCKjJgSCuicPWUWOUcdqt1ROPnEiaOYN4pSHibDv8la3OxNLalvuvUXn8clpJlrpuyTpckgt9OPkeSSdT/0, createdBy=8fd71930726, createdName=半夏微凉, createdTime=Thu Nov 30 10:31:22 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265585, encodeId=0f7b26558578, content=好好文章学习了, 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/oLAjfB7s1ib06iaV3D9Tg5K1RUfOKQohib4bXhDtxVgOA9VcKY1LUZkCOmr0v3WupxANz2ibibNHkdevtSruvrhyI29IjXdtvUV48/0, createdBy=6ff82057534, createdName=139****5926, createdTime=Thu Nov 30 09:13:47 CST 2017, time=2017-11-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=265469, encodeId=6aba2654699b, content=厉害了我的哥, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Thu Nov 30 00:11:32 CST 2017, time=2017-11-30, status=1, ipAttribution=)]
    2017-11-30 飛歌

    厉害了我的哥

    0

相关资讯

Gut:慢性肝衰竭急性发作患者细菌和真菌感染的患病率、特点及预后分析!

由此可见,ACLF患者发生细菌感染非常频繁。细菌感染较为严重,并伴有强烈的全身炎症反应,临床病程较差,死亡率较高。ACLF患者很容易在短时间内发生细菌感染,并可从预防策略中获益。

Science:细菌也有“触觉”?

传统看法认为,细菌并没有感觉器官,但仍然能熟练地感知环境。但近期发表在Science杂志上的一项研究揭示,细菌不仅能对化学信号作出响应,而且还具有“触觉”。“细菌通过黏膜或肠壁等组织和表面侵染宿主动物的身体。最初接触的几秒钟往往对感染的成功至关重要。一些病原体利用机械刺激诱导其毒性,并获得损伤宿主组织的能力。”由巴塞尔大学生物中心的Urs Jenal教授领导的研究小组,揭示了细菌如何通过表面“感觉

J Periodontol:非手术治疗是否可以减少局部侵袭性牙周炎的JP2

以前的研究已经提供了伴放线放线杆菌和高度破坏白细胞的JP2基因型与局部侵袭性牙周炎(LAgP)关系的实质证据。本研究旨在评估牙周治疗后LAgP患者中JP2的情况。

没吐出来的痰吞下去要紧吗?

工作生活中,总有话到嘴边不得不咽下去的时候,也有痰到嘴边,没处吐的时候。那么问题来了……一口浓痰吞下去,要紧吗?不小心吞了一口痰,对身体有影响么?一般情况是,不会......痰是一种“脓性分泌物”,主要是大量的白细胞吞食病菌之后死亡的“尸体”,本来就没带多少病菌。被吞进胃里后,经过胃酸的浸泡,仅剩的病菌也会被处死,对人体没什么杀伤力。但你如果有肺结核的话,把痰吞下去就没那么幸运了!结核杆菌的生命力

被细菌包围的检验人!键盘、门把手、电话统统都有

检验科是比较特殊的科室,其工作人员不仅要与患者直接接触,而且还要与患者的血液、体液、分泌物、组织和排泄物等接触,上述因素提示检验科是非常容易发生医源性感染的科室,也是医院感染管理科重点监控的科室。随着越来越多的医院实行计算机网络化管理,检验科各科室都安装有电脑,其键盘、鼠标被医护人员的手频繁接触,不少医护人员没有做到先洗手后操作,所以细菌污染严重。

J Lipid Res:心脏病可能与口腔细菌有关

心脏疾病与动脉血管中的脂肪栓塞有密切关系。但一项新研究显示,脂肪分子不仅来自食物,还可能来自口腔中的某种细菌。这一发现可以解释为什么牙周疾病经常与心脏疾病相关。

Baidu
map
Baidu
map
Baidu
map