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WTAP在肝母细胞瘤增殖和进展中的作用 被引量:3
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作者 孙贵凤 刘丽 +3 位作者 张梦梅 ramesh bhandari 梁龙 孙奋勇 《中国肿瘤临床》 CAS CSCD 北大核心 2021年第5期217-224,共8页
目的:探讨RNA甲基化酶WTAP在肝母细胞瘤细胞中的生物学功能。方法:收集2016年8月至2020年6月同济大学附属第十人民医院手术治疗的肝母细胞瘤患者的肿瘤组织和正常对照组织13对,采用Western blot检测组织中WTAP的表达,在肝母细胞瘤细胞... 目的:探讨RNA甲基化酶WTAP在肝母细胞瘤细胞中的生物学功能。方法:收集2016年8月至2020年6月同济大学附属第十人民医院手术治疗的肝母细胞瘤患者的肿瘤组织和正常对照组织13对,采用Western blot检测组织中WTAP的表达,在肝母细胞瘤细胞系中转染siRNA敲减WTAP,慢病毒包装WTAP过表达载体WTAP过表达,使用q PCR和Western blot检测敲减和过表达效率,采用CCK8实验检测细胞增殖活性,克隆形成实验检测细胞克隆形成能力,流式细胞术检测细胞凋亡。裸鼠皮下成瘤实验检测细胞在体内的成瘤能力。结果:WTAP在肝母细胞瘤组织中高表达(P=0.0007);Huh6细胞(P=0.0002)和HepG2细胞(P=0.0030)中的WTAP表达水平与QSG-7701细胞相比显著升高,Huh6细胞(P<0.0001)和HepG2细胞(P=0.0035)中的WTAP表达水平与HL-7702细胞相比也显著升高。在肝母细胞瘤细胞中敲减WTAP后,细胞增殖活性和克隆形成能力受到显著抑制,而过表达WTAP则显著增强了细胞增殖活性和克隆形成能力。流式细胞术检测结果显示,Huh6细胞MOCK组的凋亡细胞百分比(10.93±0.2603)%显著低于siWTAP-1组[(16.43±0.6333)%,P=0.0013]和siWTAP-2组[(20.27±0.7535)%,P=0.0003],HepG2细胞MOCK组的凋亡细胞百分比(4.733±0.1764)%显著低于siWTAP-1组[(14.33±0.2728)%,P<0.0001]和siWTAP-2组[(15.33±0.2728)%,P<0.0001]。WTAP稳定敲减细胞株形成的移植瘤的体积(701±82.31)mm^(3)显著小于对照组[(200.2±31.59)mm^(3),P=0.0001];WTAP稳定敲减细胞株形成的移植瘤的重量(0.6368±0.08391)g显著小于对照组[(0.1356±0.03329)g,P<0.0001];WTAP稳定敲减细胞株形成的移植瘤的Ki-67阳性细胞数(108±13.05)显著少于对照组[(406±14.73),P=0.0001]。结论:WTAP在肝母细胞瘤细胞中发挥着促进增殖抑制凋亡的重要生物学功能,可能是肝母细胞瘤诊疗的一个潜在靶点。 展开更多
关键词 肝母细胞瘤 WTAP 细胞增殖
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From minimal to maximal surgery in the treatment of hepatocarcinoma:A review 被引量:4
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作者 Marcos Vinicius Perini Graham Starkey +4 位作者 Michael A Fink ramesh bhandari Vijayaragavan Muralidharan Robert Jones Christopher Christophi 《World Journal of Hepatology》 CAS 2015年第1期93-100,共8页
Hepatocellular carcinoma represents one of the most challenging frontiers in liver surgery. Surgeons have to face a broad spectrum of aspects,from the underlying liver disease to the new surgical techniques. Safe live... Hepatocellular carcinoma represents one of the most challenging frontiers in liver surgery. Surgeons have to face a broad spectrum of aspects,from the underlying liver disease to the new surgical techniques. Safe liver resection can be performed in patients with portal hypertension and well-compensated liver function witha 5-year survival rate of 50%,offering good longterms results in selected patients. With the advances in laparoscopic surgery,major liver resections can be performed with minimal harm,avoiding the wound and leak complications related to the laparotomies. Studies have shown that oncological margins are the same as in open surgery. In patients submitted to liver resection(either laparoscopic or open) who experience recurrence,re-resection or salvage liver transplantation has been showing to be an alternative approach in well selected cases. The decision making approach to the cirrhotic patient is becoming more complex and should involve hepatologists,liver surgeons,radiologists and oncologists. Better understanding of the different risk factors for recurrence and survival should be aimed in these multidisciplinary discussions. We here in discuss the hot topics related to surgical risk factors regarding the surgical treatment of hepatocellular carcinoma: anatomical resection,margin status,macrovascular tumor invasion,the place of laparoscopy,salvage liver transplantation and liver transplantation. 展开更多
关键词 HEPATECTOMY LIVER RESECTION CIRRHOSIS LIVER transplantation Hepatocellular carcinoma Survival
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