Baidu
map

Blood:MYC诱导性AML的发生需要IL3和GM-CSF的持续共刺激

2020-07-03 QQY MedSci原创

IL3/GM-CSF刺激是MYC介导的人造血细胞由正常转为AML所必须的;早/晚幼粒细胞祖细胞通过MYC转导和IL3/GM-CSF暴露快速而有效地产生AML。

在健康人中,携带白血病突变的造血克隆随着年龄的增长而出现,但很少进展成急性髓系白血病(AML)。近期有证据表明微环境可能在人AML动态中发挥重要作用。

为了深入研究这一可能,Elizabeth Bulaeva等人检测了癌基因(c-MYC)和IL-3、GM-CSF及SCF暴露在异种移植免疫缺陷小鼠中对实验性人AML发生的联合和单独作用。

初步实验显示,将转染表达MYC的慢病毒的正常人CD34+血细胞移植到免疫缺陷小鼠,这些细胞会迅速发生可致死的扩增,表型和转录谱均与人AML细胞的类似,但只发生在转基因产生IL3、GM-CSF和SCF的小鼠中,或用共转染策略将细胞暴露在IL3或GM-CSF的小鼠中。

在IL3、GM-CSF或SCF缺乏的情况下,MYC+人细胞在移植小鼠中可持续数月产生正常的淋巴和髓系细胞,但二次转移到能产生人细胞因子的小鼠中时,MYC+细胞会迅速产生AML。

这些发现强调了这些细胞因子(IL3、GM-CSF和SCF)在激活正常分化的人造血细胞的恶性状态中所起的关键作用。

原始出处:

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=1813279, encodeId=098e18132e96e, content=<a href='/topic/show?id=92b5918e845' target=_blank style='color:#2F92EE;'>#诱导性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91878, encryptionId=92b5918e845, topicName=诱导性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4193478, createdName=wgx306, createdTime=Sun Mar 14 07:43:10 CST 2021, time=2021-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1668869, encodeId=eb9a1668869e5, content=<a href='/topic/show?id=a41d5339c1' target=_blank style='color:#2F92EE;'>#CSF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5339, encryptionId=a41d5339c1, topicName=CSF)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a5226466702, createdName=kcb078, createdTime=Mon Oct 19 20:43:10 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1274833, encodeId=274412e48331c, content=<a href='/topic/show?id=1bbc12404ba' target=_blank style='color:#2F92EE;'>#MYC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12404, encryptionId=1bbc12404ba, topicName=MYC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Sun Jul 05 12:43:10 CST 2020, time=2020-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801189, encodeId=0453801189f0, content=微环境可能在人AML动态中发挥重要作用。, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=43ef4882269, createdName=lijunhong7212, createdTime=Sat Jul 04 15:28:36 CST 2020, time=2020-07-04, status=1, ipAttribution=)]
    2021-03-14 wgx306
  2. [GetPortalCommentsPageByObjectIdResponse(id=1813279, encodeId=098e18132e96e, content=<a href='/topic/show?id=92b5918e845' target=_blank style='color:#2F92EE;'>#诱导性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91878, encryptionId=92b5918e845, topicName=诱导性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4193478, createdName=wgx306, createdTime=Sun Mar 14 07:43:10 CST 2021, time=2021-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1668869, encodeId=eb9a1668869e5, content=<a href='/topic/show?id=a41d5339c1' target=_blank style='color:#2F92EE;'>#CSF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5339, encryptionId=a41d5339c1, topicName=CSF)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a5226466702, createdName=kcb078, createdTime=Mon Oct 19 20:43:10 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1274833, encodeId=274412e48331c, content=<a href='/topic/show?id=1bbc12404ba' target=_blank style='color:#2F92EE;'>#MYC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12404, encryptionId=1bbc12404ba, topicName=MYC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Sun Jul 05 12:43:10 CST 2020, time=2020-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801189, encodeId=0453801189f0, content=微环境可能在人AML动态中发挥重要作用。, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=43ef4882269, createdName=lijunhong7212, createdTime=Sat Jul 04 15:28:36 CST 2020, time=2020-07-04, status=1, ipAttribution=)]
    2020-10-19 kcb078
  3. [GetPortalCommentsPageByObjectIdResponse(id=1813279, encodeId=098e18132e96e, content=<a href='/topic/show?id=92b5918e845' target=_blank style='color:#2F92EE;'>#诱导性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91878, encryptionId=92b5918e845, topicName=诱导性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4193478, createdName=wgx306, createdTime=Sun Mar 14 07:43:10 CST 2021, time=2021-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1668869, encodeId=eb9a1668869e5, content=<a href='/topic/show?id=a41d5339c1' target=_blank style='color:#2F92EE;'>#CSF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5339, encryptionId=a41d5339c1, topicName=CSF)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a5226466702, createdName=kcb078, createdTime=Mon Oct 19 20:43:10 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1274833, encodeId=274412e48331c, content=<a href='/topic/show?id=1bbc12404ba' target=_blank style='color:#2F92EE;'>#MYC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12404, encryptionId=1bbc12404ba, topicName=MYC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Sun Jul 05 12:43:10 CST 2020, time=2020-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801189, encodeId=0453801189f0, content=微环境可能在人AML动态中发挥重要作用。, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=43ef4882269, createdName=lijunhong7212, createdTime=Sat Jul 04 15:28:36 CST 2020, time=2020-07-04, status=1, ipAttribution=)]
    2020-07-05 guihongzh
  4. [GetPortalCommentsPageByObjectIdResponse(id=1813279, encodeId=098e18132e96e, content=<a href='/topic/show?id=92b5918e845' target=_blank style='color:#2F92EE;'>#诱导性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91878, encryptionId=92b5918e845, topicName=诱导性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4193478, createdName=wgx306, createdTime=Sun Mar 14 07:43:10 CST 2021, time=2021-03-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1668869, encodeId=eb9a1668869e5, content=<a href='/topic/show?id=a41d5339c1' target=_blank style='color:#2F92EE;'>#CSF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5339, encryptionId=a41d5339c1, topicName=CSF)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a5226466702, createdName=kcb078, createdTime=Mon Oct 19 20:43:10 CST 2020, time=2020-10-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1274833, encodeId=274412e48331c, content=<a href='/topic/show?id=1bbc12404ba' target=_blank style='color:#2F92EE;'>#MYC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12404, encryptionId=1bbc12404ba, topicName=MYC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=66ec123, createdName=guihongzh, createdTime=Sun Jul 05 12:43:10 CST 2020, time=2020-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801189, encodeId=0453801189f0, content=微环境可能在人AML动态中发挥重要作用。, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=43ef4882269, createdName=lijunhong7212, createdTime=Sat Jul 04 15:28:36 CST 2020, time=2020-07-04, status=1, ipAttribution=)]
    2020-07-04 lijunhong7212

    微环境可能在人AML动态中发挥重要作用。

    0

相关资讯

Blood:EPOCH联合vorinostat治疗HIV相关非霍奇金淋巴瘤的疗效

EPOCH方案:依托泊苷(VP-16)50mg/m2,表柔比星(E-ADM)12mg/m2,长春新碱(VCR)0.4 mg/m2,溶解于生理盐水500ml中,持续静滴24h,第1~4天;环磷酰胺(CT

Blood:MYC驱动的淋巴瘤进展需MYC拮抗剂MNT抑制MYC诱导的细胞凋亡

中心点:MNT通过抑制MYC诱导的细胞凋亡,来辅助MYC驱动的B淋巴细胞瘤发生,该过程主要是通过抑制BIM实现的。诱导移植的Em-Myc淋巴瘤MNT丢失可延长受体的生存期,提示MNT或可成为MYC驱动肿瘤的一个新的治疗靶点。摘要:MYC过表达失调与大多数(约70%)人类肿瘤的发生和恶性进展有关。MYC促进细胞生长和增殖,但在高水平时,也促进细胞凋亡。近期,研究人员发现MYC驱动的正常和肿瘤B淋巴样

Blood:Myc-Miz-1信号通过抑制Cebpα和Cebpδ表达促进白血病干细胞自我更新

中心点:Myc通过Miz1介导的反抑制活性调节白血病干细胞的自我更新。Myc通过抑制Cebpα和Cebpδ的表达发挥这样的作用。摘要:在大多数急性髓系白血病(AML)中,c-Myc(以下简称Myc)多异常表达和/或扩增。几乎所有的AML细胞的增殖和存活都依赖于Myc。因此,Myc被认为是重要的抗AML靶点。Myc具有Max介导的反式激活和Miz1介导的反式抑制活性。在AML发病机制中Myc-Max

Cell Death Dis:MYC调控假基因HMGA1P6转录促进卵巢癌发生发展

人类基因组中多达18,000个假基因,其中三分之二能够被转录。越来越多的证据表明,假基因具有功能作用,能够潜在地调节蛋白质编码基因的转录水平及转录后水平。

Blood:携带MYC和BCL2/BCL6重排的高级别B细胞淋巴瘤

携带MYC和BCL2和/或BCL6重排的高级别B细胞淋巴瘤(HGBL-DH/TH),包括弥漫性大B细胞淋巴瘤,采用标准化疗的预后较差。近日,研究人员发现了一个基因表达特征,凭借该特征可鉴别出27%的具有双重hit样表达模式(DHITsig)和预后较差的GCB-DLBCLs,而这些病例中只有一半同时携带MYC和BCL2易位,可使用标准的分裂荧光原位杂交(FISH)识别。

Science Signal:内皮-间充质转化破坏血管完整性,诱导Myc介导的代谢改变促进肾纤维化

肾损伤激活调控EndMT的转录因子Twist和Snail,导致血管破裂。随之而来的组织缺氧又触发了肾小管上皮细胞中Myc诱导的代谢转变为糖酵解,最终导致肾纤维化和肾功能受损。内皮细胞Twist或Sna

Baidu
map
Baidu
map
Baidu
map