索拉非尼联合奥曲肽抑制肝癌细胞效果显著

2012-05-25 小哲 摘编 医学论坛网

  近日,重庆医科大学附属第二医院消化内科和重庆医药高等专科学校的研究人员共同发表论文,旨在观察索拉非尼联合奥曲肽在体外对人肝癌细胞株HepG2的抑制作用,并探讨其机制。研究指出,索拉非尼、奥曲肽均可抑制人肝癌细胞HepG2增殖,并诱导其凋亡,联合应用效果更为显著;其机制可能与二者协同抑制VEGF的表达,并下调抗凋亡蛋白Mcl-1及磷酸化ERK1/2的表达有关。该文发表在2012年第20卷第2期《

  近日,重庆医科大学附属第二医院消化内科和重庆医药高等专科学校的研究人员共同发表论文,旨在观察索拉非尼联合奥曲肽在体外对人肝癌细胞株HepG2的抑制作用,并探讨其机制。研究指出,索拉非尼、奥曲肽均可抑制人肝癌细胞HepG2增殖,并诱导其凋亡,联合应用效果更为显著;其机制可能与二者协同抑制VEGF的表达,并下调抗凋亡蛋白Mcl-1及磷酸化ERK1/2的表达有关。该文发表在2012年第20卷第2期《中华肝脏病杂志》上。

  采用不同浓度梯度的索拉非尼、奥曲肽单独和联合作用于人肝癌细胞株HepG2,分别于24、48、72 h用CCK-8试剂盒测定各组细胞的杀伤效应,流式细胞术检测HepG2细胞的凋亡率,荧光显微镜观察细胞的凋亡情况;并用酶联免疫吸附法检测细胞培养上清液中血管内皮生长因子(VEGF)的水平,Western blot法测定细胞中髓样细胞白血病-1(Mcl-1)、细胞外信号调节激酶(ERK)1/2、磷酸化ERK1/2的表达。

  索拉非尼、奥曲肽单独使用和联合使用均对HepG2细胞具有抑制作用,并诱导其凋亡,联合用药组抑制效果优于单独用药组。荧光显微镜观察显示,联合用药组和单独用药组细胞膜上均出现代表细胞早期凋亡的标志物磷脂酰丝氨酸。联合用药组VEGF表达水平低于索拉非尼组、奥曲肽组及正常对照组。Western blot法结果显示,各组ERK1/2表达水平差异并无统计学意义;与正常对照相组比,索拉非尼、奥曲肽及联合用药组的磷酸化ERK1/2表达均减少,联合用药组表达水平低于单独用药组;奥曲肽组Mcl-1的表达水平与对照组差异无统计学意义,索拉非尼组和联合用药组的表达水平低于正常对照组,联合用药组的Mcl-1表达水平低于各单独用药组。
    

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 (3)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1976351, encodeId=6e2019e635193, content=<a href='/topic/show?id=0ae08128e66' target=_blank style='color:#2F92EE;'>#肝癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81287, encryptionId=0ae08128e66, topicName=肝癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87f580, createdName=yilong5287542, createdTime=Sat Aug 04 20:54:00 CST 2012, time=2012-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2071102, encodeId=309b20e11022c, content=<a href='/topic/show?id=d96844552f4' target=_blank style='color:#2F92EE;'>#奥曲肽#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=44552, encryptionId=d96844552f4, topicName=奥曲肽)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e6a1280, createdName=zhanglin3079, createdTime=Thu Sep 13 02:54:00 CST 2012, time=2012-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1251885, encodeId=300f125188501, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Sun May 27 10:54:00 CST 2012, time=2012-05-27, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1976351, encodeId=6e2019e635193, content=<a href='/topic/show?id=0ae08128e66' target=_blank style='color:#2F92EE;'>#肝癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81287, encryptionId=0ae08128e66, topicName=肝癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87f580, createdName=yilong5287542, createdTime=Sat Aug 04 20:54:00 CST 2012, time=2012-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2071102, encodeId=309b20e11022c, content=<a href='/topic/show?id=d96844552f4' target=_blank style='color:#2F92EE;'>#奥曲肽#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=44552, encryptionId=d96844552f4, topicName=奥曲肽)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e6a1280, createdName=zhanglin3079, createdTime=Thu Sep 13 02:54:00 CST 2012, time=2012-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1251885, encodeId=300f125188501, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Sun May 27 10:54:00 CST 2012, time=2012-05-27, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1976351, encodeId=6e2019e635193, content=<a href='/topic/show?id=0ae08128e66' target=_blank style='color:#2F92EE;'>#肝癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=31, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81287, encryptionId=0ae08128e66, topicName=肝癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87f580, createdName=yilong5287542, createdTime=Sat Aug 04 20:54:00 CST 2012, time=2012-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2071102, encodeId=309b20e11022c, content=<a href='/topic/show?id=d96844552f4' target=_blank style='color:#2F92EE;'>#奥曲肽#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=44552, encryptionId=d96844552f4, topicName=奥曲肽)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e6a1280, createdName=zhanglin3079, createdTime=Thu Sep 13 02:54:00 CST 2012, time=2012-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1251885, encodeId=300f125188501, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Sun May 27 10:54:00 CST 2012, time=2012-05-27, status=1, ipAttribution=)]
    2012-05-27 yxch36