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【摘 要】目的:探讨枸杞多糖(Lycium Barbarum Polysaccharides,LBP)对宫颈癌siha细胞生长的影响及可能的机制。方法:siha细胞用500ug/ml、1000ug/ml、2000ug/mlLBP及 PBS处理72小时,分别用细胞拍照、MTS及流式细胞仪检测细胞增殖、细胞周期及细胞凋亡。结果:LBP以时间-剂量依赖关系抑制siha细胞的生长。缩短siha细胞周期S期时间,并促进siha细胞凋亡。结论:LBP可抑制siha细胞增殖,其机制包括阻滞细胞周期及促进细胞凋亡。【关键词】枸杞多糖;siha细胞;细胞增殖
Effect of Lycium Barbarum Polysaccharides at Different Concentration on the Proliferation of Cervical Cancer Siha Cells
Ding Yong hui1,Pan Li hua2
(1.The General Hospital of Ningxia Medical Univercity Gynaecology,Ningxia Yingchuan 750004;2.Chongqing Medical Univercity,Chongqing 400016)
[Abstract]Objective To study the effect of LBP on the proliferation of cervical cancer siha cells and the function mechanisms. Methods To treat siha cells with different concentration LBP (500ug/ml,1000ug/ml ,2000ug/ml)and PBS 72 hours. Using photograph cells, MTS and Flow Cytometry to examine the proliferation,cell cycle and cell apoptosis of siha cells. Results The growth of siha cells was inhibited by LBP and it was related to the time of treatment by LBP and concentration of LBP.The S period of siha cell cycle was shortened and cell apoptosis was promoted. Conclusions The proliferation of cervical cancer siha cells was inhibited.The function mechanisms include inhibit cell cycle and promote cell apoptosis.
[Key words]Lycium barbarum polysaccharides; siha cells;proliferation
宫颈癌是妇科常见的恶性肿瘤之一。高危型人乳头瘤病毒(HR-HPV)感染是宫颈癌发病的主要危险因素[ 1 ]。统计表明,HR-HPV与宫颈癌的相关性比吸烟与肺癌还要高。95%以上的宫颈癌是由HR-HPV感染引起的[2]。而目前HPV尚无良好的治疗手段。临床上主要采取“治病即治毒”的策略,通过治疗HPV感染引起的宫颈疾病而达到治疗HPV的目的,但依然无法完全清除HPV感染。因此,寻找治疗HPV的有效药物,对减少宫颈癌及宫颈上皮内瘤变(CIN)的发病具有非常重要的意义。枸杞多糖是枸杞子的有效成分。研究表明,枸杞多糖(Lycium Barbarum Polysaccharides,LBP)具有抗衰老、抗肿瘤、增强免疫力等作用[3]。本文通过对枸杞多糖抑制HPV转染的宫颈癌siha细胞株增殖作用的研究,以期寻找到治疗HPV感染的有效药物。
1 材料与方法
1.1实验材料 人宫颈癌siha细胞株,细胞培养试剂:胎牛血清(Hyclone,Cat.No.SH30087.01),DMEM-高糖培养基(Hyclone,Cat.No.SH30023.01B),青链霉素(Hyclone,Cat. No. SH30010),PBS磷酸钾缓冲液(Hyclone,Cat.No.SH30256.01B),Annexin V-FITC细胞凋亡检测试剂盒及凯基细胞周期检测试剂盒均购自广州莱德尔生物技术有限公司。LBP由宁夏医科大学药学院戴贵东教授惠赠(浓度超过80%)。
1.2 实验分组 共分5组:细胞组、PBS组、LBP500ug/ml组、LBP1000ug/ml组、LBP2000ug/ml组。
1.3 实验方法
1.3.1 细胞培养 将水浴锅预热至37℃;吸掉细胞培养瓶内旧培养液;用PBS洗涤细胞一至二次;加入trypsin-EDTA溶液(1ml/25cm2,2ml/75cm2),轻洗细胞皿底部。吸掉trypsin-EDTA溶液,放入37℃培养箱2~3分钟,轻拍培养瓶壁使大部分细胞脱落,于倒立显微镜下观察,当细胞将要分离而呈现圆粒状时,加入适量含血清之新鲜培养基终止trypsin作用;以吸管上下吸放数次以打散细胞团块,混和均匀后,补足3n(n为传代瓶数)ml培养基(DMEM-高糖),依稀释比例转移至新的培养瓶中;放
Effect of Lycium Barbarum Polysaccharides at Different Concentration on the Proliferation of Cervical Cancer Siha Cells
Ding Yong hui1,Pan Li hua2
(1.The General Hospital of Ningxia Medical Univercity Gynaecology,Ningxia Yingchuan 750004;2.Chongqing Medical Univercity,Chongqing 400016)
[Abstract]Objective To study the effect of LBP on the proliferation of cervical cancer siha cells and the function mechanisms. Methods To treat siha cells with different concentration LBP (500ug/ml,1000ug/ml ,2000ug/ml)and PBS 72 hours. Using photograph cells, MTS and Flow Cytometry to examine the proliferation,cell cycle and cell apoptosis of siha cells. Results The growth of siha cells was inhibited by LBP and it was related to the time of treatment by LBP and concentration of LBP.The S period of siha cell cycle was shortened and cell apoptosis was promoted. Conclusions The proliferation of cervical cancer siha cells was inhibited.The function mechanisms include inhibit cell cycle and promote cell apoptosis.
[Key words]Lycium barbarum polysaccharides; siha cells;proliferation
宫颈癌是妇科常见的恶性肿瘤之一。高危型人乳头瘤病毒(HR-HPV)感染是宫颈癌发病的主要危险因素[ 1 ]。统计表明,HR-HPV与宫颈癌的相关性比吸烟与肺癌还要高。95%以上的宫颈癌是由HR-HPV感染引起的[2]。而目前HPV尚无良好的治疗手段。临床上主要采取“治病即治毒”的策略,通过治疗HPV感染引起的宫颈疾病而达到治疗HPV的目的,但依然无法完全清除HPV感染。因此,寻找治疗HPV的有效药物,对减少宫颈癌及宫颈上皮内瘤变(CIN)的发病具有非常重要的意义。枸杞多糖是枸杞子的有效成分。研究表明,枸杞多糖(Lycium Barbarum Polysaccharides,LBP)具有抗衰老、抗肿瘤、增强免疫力等作用[3]。本文通过对枸杞多糖抑制HPV转染的宫颈癌siha细胞株增殖作用的研究,以期寻找到治疗HPV感染的有效药物。
1 材料与方法
1.1实验材料 人宫颈癌siha细胞株,细胞培养试剂:胎牛血清(Hyclone,Cat.No.SH30087.01),DMEM-高糖培养基(Hyclone,Cat.No.SH30023.01B),青链霉素(Hyclone,Cat. No. SH30010),PBS磷酸钾缓冲液(Hyclone,Cat.No.SH30256.01B),Annexin V-FITC细胞凋亡检测试剂盒及凯基细胞周期检测试剂盒均购自广州莱德尔生物技术有限公司。LBP由宁夏医科大学药学院戴贵东教授惠赠(浓度超过80%)。
1.2 实验分组 共分5组:细胞组、PBS组、LBP500ug/ml组、LBP1000ug/ml组、LBP2000ug/ml组。
1.3 实验方法
1.3.1 细胞培养 将水浴锅预热至37℃;吸掉细胞培养瓶内旧培养液;用PBS洗涤细胞一至二次;加入trypsin-EDTA溶液(1ml/25cm2,2ml/75cm2),轻洗细胞皿底部。吸掉trypsin-EDTA溶液,放入37℃培养箱2~3分钟,轻拍培养瓶壁使大部分细胞脱落,于倒立显微镜下观察,当细胞将要分离而呈现圆粒状时,加入适量含血清之新鲜培养基终止trypsin作用;以吸管上下吸放数次以打散细胞团块,混和均匀后,补足3n(n为传代瓶数)ml培养基(DMEM-高糖),依稀释比例转移至新的培养瓶中;放