Baidu
map

Cancer Cell:科学家发现能抑制多种肿瘤的酶抑制剂

2016-03-26 佚名 生物谷

研究人员最近研发了一种酶抑制剂,显示对多种肿瘤有效,尤其是白血病,乳腺癌和大肠癌。他们的研究重心是c-Myc肿瘤蛋白,它在将近一半的人类肿瘤中表达增强,以及SIRT2--对多种癌症细胞的活力起关键作用的酶。研究人员用一种称为TM的化合物,能在乳腺癌小鼠模型中抑制SIRT2活性,降低c-Myc蛋白水平,抑制肿瘤生长。 这项研究让我们在每年夺取800万人生命的疾病的治愈之路上又向前走了一步。他们

研究人员最近研发了一种酶抑制剂,显示对多种肿瘤有效,尤其是白血病,乳腺癌和大肠癌。他们的研究重心是c-Myc肿瘤蛋白,它在将近一半的人类肿瘤中表达增强,以及SIRT2--对多种癌症细胞的活力起关键作用的酶。研究人员用一种称为TM的化合物,能在乳腺癌小鼠模型中抑制SIRT2活性,降低c-Myc蛋白水平,抑制肿瘤生长。

这项研究让我们在每年夺取800万人生命的疾病的治愈之路上又向前走了一步。他们的工作发表在Cancel Cell杂志上。

"这项研究从基础科学开始,是基础研究把我们带上这条路,看起来很有前景。我们希望未来几年内能开发出抗癌症的有效药物。"研究的作者之一Hening Lin说。

之前去乙酰化类酶抑制剂的研究,包括SIRT2的抑制剂,因有效性和选择性不同而受限。通过研发和测试TM以及另外三种类似物,Lin和同事们发现TM对抑制SIRT2蛋白有最出色的活性和选择性。研究小组将TM送往国家癌症研究所对大约60种癌症细胞系进行筛选。结果显示,10uM TM能将56株肿瘤细胞中的36株抑制超过50%,包括所有白血病细胞系和大多数直肠癌细胞系。

Lin说:"这一发现其实有点令人吃惊,我们做TM化合物时本来是靶向SIRT6蛋白的。"SIRT6是去乙酰化酶家族中的另一种酶。

基于前人的两项研究,当时认为SIRT2可能是一个肿瘤抑制基因,对它的抑制可能促进肿瘤形成。而事实上并非如此,研究人员做了多种实验证明,TM的抗肿瘤效果是通过抑制SIRT2蛋白达到的。Giannakakou说,是合作与会议上大家交换想法,促成了其与c-Myc相关的发现。

"在这之前,我们没有什么有效针对cMyc蛋白的东西,大部分抑制剂都是间接作用,靶向其他目标,然后下游降低cMyc。TM也一样是间接作用,但它在体内和体外均表现出很高的活性。TM有可能进一步发展为临床药物。"

该小组必须应对的TM的缺陷是它的溶解度差和生物利用率低的问题。Lin相信,通过提高溶解度和生物利用率,他们能将TM的抗肿瘤效果进一步提高。 

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=1780670, encodeId=02761e80670b4, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Thu Jan 12 17:00:00 CST 2017, time=2017-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869319, encodeId=a86a186931984, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Mar 26 21:00:00 CST 2016, time=2016-03-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1959575, encodeId=f4bb19595e578, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, 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=Fri Aug 26 04:00:00 CST 2016, time=2016-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1802313, encodeId=d3f918023131d, content=<a href='/topic/show?id=acfae485578' target=_blank style='color:#2F92EE;'>#科学家发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74855, encryptionId=acfae485578, topicName=科学家发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e572480, createdName=旅苦化文_208, createdTime=Sat Aug 13 17:00:00 CST 2016, time=2016-08-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1851302, encodeId=b58018513027d, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Fri May 06 10:00:00 CST 2016, time=2016-05-06, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1780670, encodeId=02761e80670b4, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Thu Jan 12 17:00:00 CST 2017, time=2017-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869319, encodeId=a86a186931984, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Mar 26 21:00:00 CST 2016, time=2016-03-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1959575, encodeId=f4bb19595e578, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, 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=Fri Aug 26 04:00:00 CST 2016, time=2016-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1802313, encodeId=d3f918023131d, content=<a href='/topic/show?id=acfae485578' target=_blank style='color:#2F92EE;'>#科学家发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74855, encryptionId=acfae485578, topicName=科学家发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e572480, createdName=旅苦化文_208, createdTime=Sat Aug 13 17:00:00 CST 2016, time=2016-08-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1851302, encodeId=b58018513027d, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Fri May 06 10:00:00 CST 2016, time=2016-05-06, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1780670, encodeId=02761e80670b4, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Thu Jan 12 17:00:00 CST 2017, time=2017-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869319, encodeId=a86a186931984, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Mar 26 21:00:00 CST 2016, time=2016-03-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1959575, encodeId=f4bb19595e578, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, 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=Fri Aug 26 04:00:00 CST 2016, time=2016-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1802313, encodeId=d3f918023131d, content=<a href='/topic/show?id=acfae485578' target=_blank style='color:#2F92EE;'>#科学家发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74855, encryptionId=acfae485578, topicName=科学家发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e572480, createdName=旅苦化文_208, createdTime=Sat Aug 13 17:00:00 CST 2016, time=2016-08-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1851302, encodeId=b58018513027d, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Fri May 06 10:00:00 CST 2016, time=2016-05-06, status=1, ipAttribution=)]
    2016-08-26 维他命
  4. [GetPortalCommentsPageByObjectIdResponse(id=1780670, encodeId=02761e80670b4, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Thu Jan 12 17:00:00 CST 2017, time=2017-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869319, encodeId=a86a186931984, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Mar 26 21:00:00 CST 2016, time=2016-03-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1959575, encodeId=f4bb19595e578, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, 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=Fri Aug 26 04:00:00 CST 2016, time=2016-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1802313, encodeId=d3f918023131d, content=<a href='/topic/show?id=acfae485578' target=_blank style='color:#2F92EE;'>#科学家发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74855, encryptionId=acfae485578, topicName=科学家发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e572480, createdName=旅苦化文_208, createdTime=Sat Aug 13 17:00:00 CST 2016, time=2016-08-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1851302, encodeId=b58018513027d, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Fri May 06 10:00:00 CST 2016, time=2016-05-06, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1780670, encodeId=02761e80670b4, content=<a href='/topic/show?id=517a4016ac' target=_blank style='color:#2F92EE;'>#cancer cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=94, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4016, encryptionId=517a4016ac, topicName=cancer cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=96f62500201, createdName=12498e67m28暂无昵称, createdTime=Thu Jan 12 17:00:00 CST 2017, time=2017-01-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869319, encodeId=a86a186931984, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Mar 26 21:00:00 CST 2016, time=2016-03-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1959575, encodeId=f4bb19595e578, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, 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=Fri Aug 26 04:00:00 CST 2016, time=2016-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1802313, encodeId=d3f918023131d, content=<a href='/topic/show?id=acfae485578' target=_blank style='color:#2F92EE;'>#科学家发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74855, encryptionId=acfae485578, topicName=科学家发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e572480, createdName=旅苦化文_208, createdTime=Sat Aug 13 17:00:00 CST 2016, time=2016-08-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1851302, encodeId=b58018513027d, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Fri May 06 10:00:00 CST 2016, time=2016-05-06, status=1, ipAttribution=)]
    2016-05-06 jklm09

相关资讯

复旦大学抗肿瘤药物专利“天价”卖给美国公司

  3月15日,复旦大学与美国HUYA(沪亚)公司在上海达成协议,复旦大学生命科学学院教授杨青将具有自主知识产权的用于肿瘤免疫治疗的IDO抑制剂有偿许可给美国HUYA公司。此次许可转让将至多为复旦大学和杨青教授带来6500万美元的收益。 据了解,IDO抑制剂作为具有新药靶、新机制的药物,可应用于治疗肿瘤、阿尔茨海默病、抑郁症、白内障等多种重大疾病,社会、经济效

NEJM:弗氏综合征-案例报道

男性,64岁,出现双下肢渐进性无力1周余。计算机断层扫描脊柱部位,结果显示仅椎间盘疾病。腰椎穿刺,发现脑脊液(CSF)是黄色的、粘性和部分处于凝结状态的(如图A)。

新型尿液检测,诊断你的癌症风险?

在2016年美国癌症研究协会上研究人员指出,通过1项新的尿液测试可以在10分钟内发现病人体内是否含有有异硫氰酸酯化合物(可有效预防癌症)。 研究人员指出,这意味着人们将不再需要记录食物日志。食物日志主要用于通过人口统计学研究探究饮食对癌症的影响。新型尿液测试有助于识别民众进食的种类是否有助于预防癌症。 根据美国国家癌症研究所的建议,十字花科蔬菜,如芝麻菜、花椰菜、甘蓝、芜菁甘蓝、羽衣甘蓝、卷心菜、

2016(第三届)肿瘤与免疫治疗研讨会

近年来,以肿瘤免疫治疗为代表,在肿瘤研究和治疗方面有很大的突破。肿瘤的病因复杂,在遗传、表观遗传、细胞、组织等层面具有诸多异常,并且对免疫环境具有极强的适应性,会发生免疫逃逸。除免疫治疗外,深度测序技术、新的分子标志物等方法也给肿瘤研究和临床带来了新的曙光。尽管取得了很大的成就,但是在肿瘤免疫逃逸机制的研究、肿瘤免疫微环境中的分子研究、T细胞及NK细胞的抗肿瘤作用等方面还存在很多的问题。新一届的肿

中国医促会胸部肿瘤分会成立大会在沪召开

2016年3月18日上午,中国医促会胸部肿瘤分会成立大会在我院隆重召开。中国医促会前任会长王铁城、中国医促会副会长史宇广、上海市卫生计生委副主任吴乾渝,同济大学副校长吕培明,以及来自全国的专家学者共同出席。 周彩存教授(左) 费苛教授(右) 会上,中国医促会前任会长王铁城宣读《关于设立中国医疗保健国际交流促进会胸部肿瘤分会》的批复文件,宣布对分会主委、副主委的组成及任命,并与副会长史宇广一

Baidu
map
Baidu
map
Baidu
map