Cell Death Dis:环状RNA circ_001621通过miR-578/VEGF轴促进骨肉瘤发生发展

2020-02-22 QQY MedSci原创

尽管在机制方面已取得了重要的进展,但目前针对血管内皮生长因子(VEGF)依赖性骨肉瘤的靶向治疗策略仍不尽如人意。在本研究中,研究人员通过circRNA微阵列研究发现,circ_001621是骨肉瘤中显著上调的一个环状RNA(circRNA)。而且,circ_001621高表达患者的存活时间较短。此外,在circRNA相互作用数据库中,研究人员发现了几个circ_001621的潜在的竞争性结合miR

尽管在机制方面已取得了重要的进展,但目前针对血管内皮生长因子(VEGF)依赖性骨肉瘤的靶向治疗策略仍不尽如人意。

在本研究中,研究人员通过circRNA微阵列研究发现,circ_001621是骨肉瘤中显著上调的一个环状RNA(circRNA)。而且,circ_001621高表达患者的存活时间较短。

此外,在circRNA相互作用数据库中,研究人员发现了几个circ_001621的潜在的竞争性结合miRNA。研究人员发现miR-578能够直接靶向circ_001621。

研究人员还研究了circ_001621、miR-578和VEGF在体内外的相互作用。结果表明,circ_001621通过削弱miR-578对细胞周期蛋白依赖性激酶4(CDK4)及基质金属肽酶9(MMP9)的抑制作用,进而促进骨肉瘤的增殖和迁移。裸鼠成瘤实验进一步地证实了circ_001621能够促进肿瘤的转移。

该研究主要揭示了circ_001621促进骨肉瘤发生发展的机制,并为晚期骨肉瘤提供了新的治疗靶标。

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    2020-09-10 维他命
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    2020-12-19 smallant2002
  6. [GetPortalCommentsPageByObjectIdResponse(id=2013188, encodeId=6ffc201318842, content=<a href='/topic/show?id=7d69598468' target=_blank style='color:#2F92EE;'>#Dis#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5984, encryptionId=7d69598468, topicName=Dis)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Tue Jun 16 06:29:00 CST 2020, time=2020-06-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1871587, encodeId=27af18e158768, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Apr 09 04:29:00 CST 2020, time=2020-04-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1783213, encodeId=f6a41e832138d, content=<a href='/topic/show?id=88c04e35d8' target=_blank style='color:#2F92EE;'>#circ_001621#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4735, encryptionId=88c04e35d8, topicName=circ_001621)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=xinxin088, createdTime=Wed Jun 17 18:29:00 CST 2020, time=2020-06-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1961880, encodeId=2b9f196188076, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Thu Sep 10 18:29:00 CST 2020, time=2020-09-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1930757, encodeId=2d981930e5711, content=<a href='/topic/show?id=22f61180211' target=_blank style='color:#2F92EE;'>#miR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11802, encryptionId=22f61180211, topicName=miR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0a27288, createdName=smallant2002, createdTime=Sat Dec 19 03:29:00 CST 2020, time=2020-12-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2030766, encodeId=43f22030e66a0, content=<a href='/topic/show?id=71353e8964f' target=_blank style='color:#2F92EE;'>#发生发展#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37896, encryptionId=71353e8964f, topicName=发生发展)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=346311, createdName=wgsun, createdTime=Thu May 14 05:29:00 CST 2020, time=2020-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368539, encodeId=9abf136853911, content=<a href='/topic/show?id=25aa1833e88' target=_blank style='color:#2F92EE;'>#VEGF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=18337, encryptionId=25aa1833e88, topicName=VEGF)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=80ca273, createdName=fanweitanzhen, createdTime=Mon Feb 24 10:29:00 CST 2020, time=2020-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1531540, encodeId=d554153154067, content=<a href='/topic/show?id=770e5e9457' target=_blank style='color:#2F92EE;'>#Death#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5794, encryptionId=770e5e9457, topicName=Death)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=32e312278742, createdName=cy0328, createdTime=Mon Feb 24 10:29:00 CST 2020, time=2020-02-24, status=1, ipAttribution=)]
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    2020-02-24 cy0328

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“所有的真理都经历三个阶段。第一,被嘲笑。第二,被激烈反对。第三,被认可且是不言而喻的。”——Arthur Schopenhauer环状RNA是近年来的研究热点。近日,美国Brandeis大学生物系的Sebastian Kadener等人在EMBO上综述了环状RNA的研究进展。BioArt对其进行了编译,以飨读者。

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环状RNA(circRNA),一类新型非编码RNA,在各种癌症的发生发展中起着至关重要的作用。但目前关于circRNA在宫颈癌中的功能的相关研究还很少。在该研究中,circRNA序列被用于检测宫颈癌组织和邻近正常组织之间差异表达的circRNA。结果发现circCLK3的表达水平与临床病理特征及患者的临床预后相关。在宫颈癌组织中,circCLK3的表达水平显著高于相邻的正常组织,而且与肿瘤的分化、

Nat Rev Genet. :环状RNA的合成与功能,与糖尿病、神经系统疾病、心血管疾病和癌症等疾病有关

环状RNA(circular RNA,circRNA)是一种新兴的内源性非编码RNA(noncoding RNA,ncRNA),是继microRNA (miRNA)以及long noncoding RNA (IncRNA)后非编码RNA家族中极具研究潜力的新成员。越来越多的研究表明,环状RNA具有种类丰富、结构稳定、序列保守以及细胞或组织特异性表达等特点。近年来,随着RNA研究技术的进步,研究者们

Nat Neurosci:环状RNA或可成为阿尔兹海默症的临床新指标

阿尔茨海默症(Alzheimer’s disease,AD)是世界卫生组织公认的全球公共卫生重点。AD是一种由多种原因引起的、不可逆转的神经退行性疾病,是痴呆中最常见的一种类型,主要表现为进行性记忆丧失、认知功能障碍、注意力散漫、情感障碍、人格变化等特点,在疾病的最后阶段,患者表现为卧床不起,需要24小时护理,最终致命。研究发现,AD的病理学特征主要为β淀粉样蛋白(beta-amyloid pro

J Cell Biochem:外泌体circ_0044516能够促进前列腺癌细胞增殖和转移

环状RNA(circRNAs)是癌症生长和恶化的重要调控因子。外泌体携带各种各样分子,包括RNA、蛋白和从一个细胞到另一个细胞的脂质。但是来自前列腺癌患者的外泌体circRNAs的作用仍旧不清楚。最近,有研究人员发现circ_0044516在前列腺癌中表达上调,并调查了Hsa_circ_0044516 (circ_0044516)的分子机制。首先,研究人员从前列腺癌患者中收集了外泌体,并进行人类c

Clin Chem:肾移植患者急性T细胞介导的同种异体排斥反应尿液中的环状RNA

近来,环状RNA (circRNAs)因为其能够调控基因表达成为新的调控因子。在急性肾损伤患者的血液中可以检测到circRNAs。我们测试了尿液中是否存在环状RNA,以及能否作为急性排斥肾移植患者预后的新的预测因子。