Baidu
map

Nat Common:PBRM1可作为p53赖氨酸乙酰化的识别因子来抑制肾肿瘤的生长

2020-01-01 AlexYang MedSci原创

P53乙酰化对其转录活性和肿瘤抑制功能的发挥是必不可少的。然而,对p53乙酰化识别蛋白的鉴定仍旧是不清楚的。PBRM1是肾癌中第二大高度变异的肿瘤抑制基因,编码PBRM1蛋白。最近,有研究人员鉴定了PBRM1是p53蛋白在第382位赖氨酸乙酰化(K382Ac)的识别因子,具体是通过其溴区结构域(BD4)来实现的。明显的是,BD4关键残基的变异能够干扰对p53的K382Ac识别。BD4的变异同样能够

P53乙酰化对其转录活性和肿瘤抑制功能的发挥是必不可少的。然而,对p53乙酰化识别蛋白的鉴定仍旧是不清楚的。

PBRM1是肾癌中第二大高度变异的肿瘤抑制基因,编码PBRM1蛋白。最近,有研究人员鉴定了PBRM1是p53蛋白在第382位赖氨酸乙酰化(K382Ac)的识别因子,具体是通过其溴区结构域(BD4)来实现的。明显的是,BD4关键残基的变异能够干扰对p53的K382Ac识别。BD4的变异同样能够减少p53对靶标基因启动子的结合(比如CDKN1A (p21))。最后,PBRM1蛋白BD4的变异导致其不能完全发挥p53的转录活性,并且肿瘤抑制子的功能也有缺陷。研究人员还发现PBRM1和p21的表达在人类肾癌样本中存在相互关系。

最后,研究人员指出,他们的发现阐释了PBRM1在肾癌中的肿瘤抑制机制,并为p53和SWI/SNF复合物之间的关系提供了机制上的认知。

原始出处:

Weijia Cai, Liya Su, Lili Liao et al. PBRM1 acts as a p53 lysine-acetylation reader to suppress renal tumor growth. Nat Common. 20 Dec 2019

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

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=1884068, encodeId=fd7918840688a, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, 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 Jul 31 18:49:00 CST 2020, time=2020-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372417, encodeId=b61713e241717, content=<a href='/topic/show?id=9d861362e53' target=_blank style='color:#2F92EE;'>#p53#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13627, encryptionId=9d861362e53, topicName=p53)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1393445, encodeId=8713139344553, content=<a href='/topic/show?id=866b82661c0' target=_blank style='color:#2F92EE;'>#肾肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82661, encryptionId=866b82661c0, topicName=肾肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqySEUYKeYDjXJMYMrtscBNkpAnLfQZgDcdkEratcJPqS7ARJOXqllZQhCSFicErlBFbIywuoiaP0LQ/132, createdBy=012d2500132, createdName=ms5880526374914242, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1592170, encodeId=a39715921e0d1, content=<a href='/topic/show?id=cce892599c3' target=_blank style='color:#2F92EE;'>#赖氨酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92599, encryptionId=cce892599c3, topicName=赖氨酸)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2c5e18091046, createdName=w363522455, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=)]
    2020-07-31 liye789132251
  2. [GetPortalCommentsPageByObjectIdResponse(id=1884068, encodeId=fd7918840688a, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, 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 Jul 31 18:49:00 CST 2020, time=2020-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372417, encodeId=b61713e241717, content=<a href='/topic/show?id=9d861362e53' target=_blank style='color:#2F92EE;'>#p53#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13627, encryptionId=9d861362e53, topicName=p53)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1393445, encodeId=8713139344553, content=<a href='/topic/show?id=866b82661c0' target=_blank style='color:#2F92EE;'>#肾肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82661, encryptionId=866b82661c0, topicName=肾肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqySEUYKeYDjXJMYMrtscBNkpAnLfQZgDcdkEratcJPqS7ARJOXqllZQhCSFicErlBFbIywuoiaP0LQ/132, createdBy=012d2500132, createdName=ms5880526374914242, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1592170, encodeId=a39715921e0d1, content=<a href='/topic/show?id=cce892599c3' target=_blank style='color:#2F92EE;'>#赖氨酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92599, encryptionId=cce892599c3, topicName=赖氨酸)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2c5e18091046, createdName=w363522455, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=)]
    2020-01-03 zhishijing
  3. [GetPortalCommentsPageByObjectIdResponse(id=1884068, encodeId=fd7918840688a, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, 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 Jul 31 18:49:00 CST 2020, time=2020-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372417, encodeId=b61713e241717, content=<a href='/topic/show?id=9d861362e53' target=_blank style='color:#2F92EE;'>#p53#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13627, encryptionId=9d861362e53, topicName=p53)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1393445, encodeId=8713139344553, content=<a href='/topic/show?id=866b82661c0' target=_blank style='color:#2F92EE;'>#肾肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82661, encryptionId=866b82661c0, topicName=肾肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqySEUYKeYDjXJMYMrtscBNkpAnLfQZgDcdkEratcJPqS7ARJOXqllZQhCSFicErlBFbIywuoiaP0LQ/132, createdBy=012d2500132, createdName=ms5880526374914242, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1592170, encodeId=a39715921e0d1, content=<a href='/topic/show?id=cce892599c3' target=_blank style='color:#2F92EE;'>#赖氨酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92599, encryptionId=cce892599c3, topicName=赖氨酸)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2c5e18091046, createdName=w363522455, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1884068, encodeId=fd7918840688a, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, 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 Jul 31 18:49:00 CST 2020, time=2020-07-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1372417, encodeId=b61713e241717, content=<a href='/topic/show?id=9d861362e53' target=_blank style='color:#2F92EE;'>#p53#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13627, encryptionId=9d861362e53, topicName=p53)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5d70341, createdName=zhishijing, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1393445, encodeId=8713139344553, content=<a href='/topic/show?id=866b82661c0' target=_blank style='color:#2F92EE;'>#肾肿瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=82661, encryptionId=866b82661c0, topicName=肾肿瘤)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqySEUYKeYDjXJMYMrtscBNkpAnLfQZgDcdkEratcJPqS7ARJOXqllZQhCSFicErlBFbIywuoiaP0LQ/132, createdBy=012d2500132, createdName=ms5880526374914242, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1592170, encodeId=a39715921e0d1, content=<a href='/topic/show?id=cce892599c3' target=_blank style='color:#2F92EE;'>#赖氨酸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92599, encryptionId=cce892599c3, topicName=赖氨酸)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2c5e18091046, createdName=w363522455, createdTime=Fri Jan 03 04:49:00 CST 2020, time=2020-01-03, status=1, ipAttribution=)]

相关资讯

PLoS Med:肥胖相关因素在肾细胞肿瘤病因中的影响研究

一些肥胖相关的因素与肾细胞肿瘤(RCC)相关,但是是哪一个因素能够直接涉及到风险仍旧不清楚。最近,有研究人员利用遗传标记作为风险因素替代物,并且评估了这些标记与RCC风险的关系。研究人员鉴定了与肥胖测量、血压、脂肪、2型糖尿病、胰岛素和葡萄糖相关的遗传标记来作为工具变量,并在全基因组关联分析(GWAS)中与RCC风险的相关性进行了评估。研究包括了10784名RCC患者和20406名对照参与者。研究

肾肿瘤治疗方法待改变

Report Suggests Changing Kidney Tumor Treatment 报告建议改变肾肿瘤治疗方法   For more than 40 years, American surgeons have treated small localized tumors of the kidney the same way:with nephrectomy, the removal

新式“萤火虫”手术可以精准切除肾肿瘤

最近,一种新型的手术方法将荧光绿染色、机器人技术和3D可视图像技术整合在一起,能够让外科医生精确切除肾肿瘤,从而避免因肿瘤切除整个肾脏。 以前肾肿瘤很难被诊断和定位,但是随着科技的进步,现在通过对健康组织染色和配备高分辨率摄像头的机器人手臂,已经攻克这一难题。 今年夏天伦敦南部的圣乔治医院首次实施了该手术。 泌尿科医师SteveBromage说:“这是很大的进步,新技术的价值得到了体现。外科

新式“萤火虫”手术可以精准切除肾肿瘤

最近,一种新型的手术方法将荧光绿染色、机器人技术和3D可视图像技术整合在一起,能够让外科医生精确切除肾肿瘤,从而避免因肿瘤切除整个肾脏。 以前肾肿瘤很难被诊断和定位,但是随着科技的进步,现在通过对健康组织染色和配备高分辨率摄像头的机器人手臂,已经攻克这一难题。 今年夏天伦敦南部的圣乔治医院首次实施了该手术。 泌尿科医师SteveBromage说:“这是很大

Sci Rep:超敏超声微血管成像中的肿瘤血管生成无创性无对比3D评估

当超快平面波采集与超声微脉管成像(UMI)结合起来使用时,与传统的多普勒成像相比,能够产生更高的血管信号敏感性。最近,有研究人员提出了一个高空间分辨率和超敏感UMI,该系统基于常规逐行高频超声成像仪和奇异值分解(SVD)杂波过滤的可视化和肿瘤微血管系统和灌注的定量来进行的。研究人员将该技术应用于一个肾细胞肿瘤的鸡胚胎肿瘤模型,该模型利用临床相关剂量的FDA批准的抗血管生成的药物处理。研究阐释了利用

BJC:病理检查看不到肿瘤淋巴结微转移?试试流式细胞仪!

肾肿瘤的分期对预后十分重要,此外淋巴结转移与不良预后有关。通常使用免疫组织化学和显微镜观察对淋巴结是否转移进行评估,这个过程十分耗时,并且可能漏掉微小转移。 我们对另一种检测前哨淋巴结(SNs)转移细胞的方法进行了评估。该方法基于流式细胞仪。 流式细胞仪是对细胞进行自动分析和分选的装置。它可以快速测量、存贮、显示悬浮在液体中的分散细胞的一系列重要的生物物理、生物化学方面的特征参量,并可

Baidu
map
Baidu
map
Baidu
map