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Effect of Photodynamic Therapy with BPD-MA on the Proliferation and Apoptosis of Human Bladder Cancer Cells
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作者 Chuanshan Xu Shiming Wu +2 位作者 Zhigang Wang Lehua Yu Qing Yang 《Chinese Journal of Clinical Oncology》 CSCD 2005年第5期776-780,共5页
关键词 光力学治疗 BPD-MA 细胞增殖 细胞凋亡 膀胱癌
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Acetyl-11-keto-β-boswellic acid inhibits proliferation and induces apoptosis of gastric cancer cells through the phosphatase and tensin homolog/Akt/cyclooxygenase-2 signaling pathway 被引量:4
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作者 Meng-Xue Sun Xiao-Pu He +4 位作者 Pei-Yun Huang Qi Qi Wei-Hao Sun Gao-Shuang Liu Jie Hua 《World Journal of Gastroenterology》 SCIE CAS 2020年第38期5822-5835,共14页
BACKGROUND Gastric cancer is one of the most common malignant tumors of the digestive system worldwide,posing a serious danger to human health.Cyclooxygenase(COX)-2 plays an important role in the carcinogenesis and pr... BACKGROUND Gastric cancer is one of the most common malignant tumors of the digestive system worldwide,posing a serious danger to human health.Cyclooxygenase(COX)-2 plays an important role in the carcinogenesis and progression of gastric cancer.Acetyl-11-keto-β-boswellic acid(AKBA)is a promising drug for cancer therapy,but its effects and mechanism of action on human gastric cancer remain unclear.AIM To evaluate whether the phosphatase and tensin homolog(PTEN)/Akt/COX-2 signaling pathway is involved in the anti-tumor effect of AKBA in gastric cancer.METHODS Human poorly differentiated BGC823 and moderately differentiated SGC7901 gastric cancer cells were routinely cultured in Roswell Park Memorial Institute 1640 medium supplemented with 10%fetal bovine serum and 1%penicillin/streptomycin.Gastric cancer cell proliferation was determined by methyl thiazolyl tetrazolium colorimetric assay.Apoptosis was measured by flow cytometry.Cell migration was assessed using the wound-healing assay.Expression of Bcl-2,Bax,proliferating cell nuclear antigen,PTEN,p-Akt,and COX-2 were detected by Western blot analysis.A xenograft nude mouse model of human gastric cancer was established to evaluate the anti-cancer effect of AKBA RESULTS AKBA significantly inhibited the proliferation of gastric cancer cells in a dose-and time-dependent manner,inhibited migration in a time-dependent manner,and induced apoptosis in a dose-dependent manner in vitro;it also inhibited tumor growth in vivo.AKBA up-regulated the expression of PTEN and Bax,and downregulated the expression of proliferating cell nuclear antigen,Bcl-2,p-Akt,and COX-2 in a dose-dependent manner.The PTEN inhibitor bpv(Hopic)reversed the high expression of PTEN and low expression of p-Akt and COX-2 that were induced by AKBA.The Akt inhibitor MK2206 combined with AKBA downregulated the expression of p-Akt and COX-2,and the combined effect was better than that of AKBA alone.CONCLUSION AKBA inhibits the proliferation and migration and promotes the apoptosis of gastric cancer cells through the PTEN/Akt/COX-2 signaling pathway. 展开更多
关键词 Acetyl-11-keto-β-boswellic acid Gastric cancer cell proliferation apoptosis CYCLOOXYGENASE-2 tumor xenograft
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Effect of Silencing LRIG3 Gene on the Proliferation and Apoptosis of Bladder Cancer T24 Cells 被引量:1
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作者 袁晓奕 包世新 +1 位作者 杨为民 叶章群 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2011年第2期220-225,共6页
This study examined the effect of silencing LRIG3 expression on the proliferation and apoptosis of bladder cancer T24 cells and explored the role of LRIG3 in the tumorigenesis of bladder cancer. Bladder cancer T24 cel... This study examined the effect of silencing LRIG3 expression on the proliferation and apoptosis of bladder cancer T24 cells and explored the role of LRIG3 in the tumorigenesis of bladder cancer. Bladder cancer T24 cells were routinely cultured and pSilencer plasmids were employed to construct LRIG3 eukaryotic expression vector of LRIG3-siRNA, i.e., pSilencer-LRIG3-siRNA. After confirmation, the vector was transfected into HEK293 cells to make a replication-deficient adenovirus, pAd-LRIG3-siRNA, which was then introduced into bladder cancer T24 cells. RT-PCR, Western- blotting were performed to detect the levels of LRIG3 mRNA and proteins. Cells number was determined by using MTT test. Hoechst33258 staining, transmission microscopy, flow cytometery were conducted to examine the cell apoptosis. Three groups included a blank control group, a negative control group (containing non-interfering plasmids) and a pAd-LRIG3-siRNA group. Our results showed that the recombinant pAd-LRIG3-siRNA was successfully transfected into the bladder cancer T24 cells. The siRNA formed by the transcription of the recombinant plasmids resulted in significantly reduced expressions of LRIG3 gene and protein and significantly decreased cell proliferation and growth in the pAd-LRIG3-siRNA group as compared with the control group (P0.01). The siRNA also caused apoptotic changes of some cells, with the apoptosis rate being (17.69±0.75)%, which was significantly different from that of the control group (P0.01). It was concluded that recombinant pAd-LRIG3-siRNA plasmids could effectively decrease the expression of LRIG3 mRNA and proteins and, to some extent, inhibit the proliferation and promote the apoptosis of bladder cancer T24 cells. Silencing LRIG3 gene might be a novel alternative for the treatment of bladder cancer. 展开更多
关键词 LRIG3 gene RNA interference apoptosis cell proliferation bladder tumors T24 cells
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Antitumor effect of tumor necrosis factor-related apoptosis inducing ligand combined with mevastatin on a human glioma cell line SWO-38
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作者 Fei Zhong Jing Yang +1 位作者 Xiaogan Jin Guoping Sun 《Neural Regeneration Research》 SCIE CAS CSCD 2010年第5期396-400,共5页
BACKGROUND: Previous studies have reported that statins are less toxic to the human body and have greater antitumor activity; however, few studies have addressed the antitumor effect of statins combined with tumor ne... BACKGROUND: Previous studies have reported that statins are less toxic to the human body and have greater antitumor activity; however, few studies have addressed the antitumor effect of statins combined with tumor necrosis factor-related apoptosis inducing ligand (TRAIL). OBJECTIVE: To explore the effect of TRAIL combined with mevastatin on the proliferation and apoptotic cell death of a human glioma cell line SWO-38, and to study its mechanism of action. DESIGN, TIME AND SETTING: An in vitro control experiment was performed at the Central Laboratory of the Third Hospital Affiliated to Sun Yat-sen University, between January and April 2009. MATERIALS: The human SWO-38 cell line was provided by Cell Research, Department of Animal Experimental Center of Sun Yat-sen University; human recombinant soluble TRAIL by R&D, USA; and mevastatin by Sigma, USA. METHODS: SWO-38 cells were separately incubated in TRAIL (100, 200, 300, 400, and 500 tJg/L) and mevastatin (5, 10, 20, 30, and 40 pmol/L) for 72 hours. In addition, SWO-38 cells were incubated in TRAIL (300 μg/L), mevastatin (30 μmol/L), and a solution containing both TRAIL and mevastatin for 12, 24, 48 and 72 hours. MAIN OUTCOME MEASURES: Cell proliferation was detected using methyl thiazolyl tetrazolium assay; cell apoptosis was observed using Hoechst 33258 staining and fluorescence microscopy and was measured using Annexin V/propidium iodide flow cytometry; TRAIL R1/DR4 and TRAIL R2/DR5 protein expressions levels were measured using indirect immunofluorescence staining combined with flow cytometry in the recombinant soluble TRAIL (rsTRAIL, 300 tJg/L), mevastatin (30 IJmol/L) and combination groups; TRAIL R1/DR4 and TRAIL R2/DR5 mRNA expression was detected using real-time polymerase chain reaction. RESULTS: rsTRAIL, mevastatin and their combination inhibited tumor proliferation in a time- and dose-dependent manner. The proliferation inhibitory rate and apoptosis rate of human SWO-38 cells in the combined group were significantly greater than the rsTRAIL or mevastatin alone group (P 〈 0.01). TRAIL R1/DR4 and TRAIL R2/DR5 protein and mRNA expressions were increased in the combination group compared with mevastatin or rsTRAIL alone after 72 hours (P 〈 0.01). CONCLUSION: Both rsTRAIL and mevastatin inhibit the proliferation and apoptosis of the human glioma cell line SWO-38, while their combination enhances the anti-tumor effect. The mechanism of action possibly correlates to the upregulation of TRAIL R1/DR4 and TRAIL R2/DR5 mRNA expression by mevastatin, thereby enhancing the cell sensitivity to rsTRAIL. 展开更多
关键词 tumor necrosis factor-related apoptosis inducing ligand mevastatin neuroglioma cell apoptosis cell proliferation SWO-38 human glioma cells nerve factor neural regeneration
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EGFR inhibitors sensitize non-small cell lung cancer cells to TRAIL-induced apoptosis 被引量:3
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作者 Fei Xu Ying Tian +4 位作者 Yan Huang Ling-Ling Zhang Zheng-Zheng Guo Jia-Jia Huang Tong-Yu Lin 《Chinese Journal of Cancer》 SCIE CAS CSCD 北大核心 2011年第10期701-711,共11页
Apoptosis induced by tumor necrosis factor-related apoptosis-inducing ligand(TRAIL) can be regulated by the epidermal growth factor(EGF) signaling pathway.In this study,recombinant adenoviral vectors that encode TRAIL... Apoptosis induced by tumor necrosis factor-related apoptosis-inducing ligand(TRAIL) can be regulated by the epidermal growth factor(EGF) signaling pathway.In this study,recombinant adenoviral vectors that encode TRAIL gene from the hTERT/RGD promoter(AdTRAIL) was combined with drugs including gefitinib,elotinib,and cetuximab that inhibit EGFR and the EGF signaling pathway in non-small cell lung cancer(NSCLC) cell lines to investigate their antitumor activity.In vitro,compared to single reagent,AdTRAIL combined with EGFR inhibitors reduced proliferation and enhanced apoptosis in H460,A549,and SW1573 cell lines.Western blot results suggested that these effects were relative to up-regulation of pro-apoptosis protein BAX and down-regulation of p-AKT.In vivo,AdTRAIL combined with cetuximab resulted in a significant growth reduction in H460 xenografts without damage to the main organs of nude mice.Histological examination and TUNEL analyses of xenografts showed that cetuximab enhanced cell apoptosis induced by AdTRAIL.These results indicate that EGFR inhibitors enhanced AdTRAIL anti-tumor activity in NSCLC cell lines and that inhibiting the AKT pathway played an important role in this enhancement. 展开更多
关键词 肿瘤坏死因子相关凋亡诱导配体 细胞凋亡 TRAIL EGFR 抑制剂 肺癌细胞 表皮生长因子受体 非小细胞肺癌
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The effect of adenovirus expressing wild-type p53 on 5-fluorouracil chemosensitivity is related to p53 status in pancreatic cancer cell lines 被引量:14
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作者 Sven Eisold Michael Linnebacher +4 位作者 EduardRyschich DaliborAntolovic UlfHinz Ernst Klar Jan Schmidt 《World Journal of Gastroenterology》 SCIE CAS CSCD 2004年第24期3583-3589,共7页
AIM: There are conflicting data about p53 function on cellular sensitivity to the cytotoxic action of 5-fluorouracil (5-FU).Therefore the objective of this study was to determine the combined effects of adenovirus-med... AIM: There are conflicting data about p53 function on cellular sensitivity to the cytotoxic action of 5-fluorouracil (5-FU).Therefore the objective of this study was to determine the combined effects of adenovirus-mediated wild-type (wt) p53 gene transfer and 5-FU chemotherapy on pancreatic cancer cells with different p53 gene status.METHODS: Human pancreatic cancer cell lines Capan-1^p53mut,Capan-2^p53wt, FAMPAC^p53mut, PANG1^p53mut, and rat pancreatic cancer cell lines AS^p53wt and DSL6A^p53null were used for in vitro studies. Following infection with different ratios of Adp53-particles (MOI) in combination with 5-FU, proliferation of tumor cells and apoptosis were quantified by cell proliferation assay (WST-1) and FACS (PI-staining). In addition, DSL6A syngeneic pancreatic tumor cells were inoculated subcutaneously in to Lewis rats for in vivostudies.Tumor size, apoptosis (TUNEL) and survival were determined.RESULTS: Ad-p53 gene transfer combined with 5-FU significantly inhibited tumor cell proliferation and substantially enhanced apoptosis in all four cell lines with an alteration in the p53 gene compared to those two cell lines containing wt-p53. In vivo experiments showed the most effective tumor regression in animals treated with Ad-p53 plus 5-FU. Both in vitroand in vivoanalyses revealed that a sublethal dose of Ad-p53 augmented the apoptotic response induced by 5-FU.CONCLUSION: Our results suggest that Ad-p53 may synergistically enhance 5-FU-chemosensitivity most strikingly in pancreatic cancer cells lacking p53 function. These findings illustrate that the anticancer efficacy of this combination treatment is dependent on the p53 gene status of the target tumor cells. 展开更多
关键词 腺病毒表达 P53 5-氟尿嘧啶 化学敏感性 P53 胰腺癌细胞系统 肿瘤 消化系统
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乳腺癌细胞条件培养基对骨髓间充质干细胞生物学行为的影响
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作者 刘丹阳 李永涛 +3 位作者 张海燕 李林 刘洋 沈雷 《天津医药》 CAS 2024年第5期454-458,共5页
目的探讨MCF-7乳腺癌细胞条件培养基对骨髓间充质干细胞(BMSC)增殖、凋亡和迁移的影响及分子机制。方法正常环境下培养的BMSC为对照组,以MCF-7细胞条件培养基培养的BMSC为MCF-7条件培养基组,向MCF-7条件培养基组添加10 nmol/L GSK690693... 目的探讨MCF-7乳腺癌细胞条件培养基对骨髓间充质干细胞(BMSC)增殖、凋亡和迁移的影响及分子机制。方法正常环境下培养的BMSC为对照组,以MCF-7细胞条件培养基培养的BMSC为MCF-7条件培养基组,向MCF-7条件培养基组添加10 nmol/L GSK690693(Akt抑制剂)为Akt抑制剂组,向MCF-7条件培养基组添加10µmol/L Reparixin(CXCR1/2抑制剂)为CXCR1/2抑制剂组。MTT实验检测各组BMSC增殖情况,Annexin V-FITC/PI双标记流式细胞凋亡实验检测各组BMSC凋亡率,Transwell细胞迁移实验检测各组BMSC的迁移能力,酶联免疫吸附试验检测两种细胞培养上清液和MCF-7细胞条件培养基中白细胞介素(IL)-8蛋白含量,Western blot检测各组BMSC的蛋白激酶B(Akt)/磷酸化Akt(p-Akt)和哺乳动物雷帕霉素靶蛋白(mTOR)/磷酸化mTOR(p-mTOR)蛋白表达。结果与对照组相比,MCF-7条件培养基组BMSC的细胞增殖水平、迁移数目以及p-Akt和p-mTOR蛋白相对表达量均增高,细胞凋亡率降低(P<0.05);与MCF-7条件培养基组相比,CXCR1/2抑制剂组和Akt抑制剂组BMSC的细胞增殖水平、迁移数目以及p-Akt和p-mTOR蛋白相对表达量均降低,细胞凋亡率增加(P<0.05);MCF-7细胞条件培养基和MCF-7培养上清液中IL-8蛋白含量均较BMSC培养上清液中IL-8蛋白含量高(P<0.05)。结论MCF-7细胞条件培养基通过激活Akt-mTOR信号通路促进BMSC增殖和迁移,抑制BMSC凋亡,其中IL-8-CXCR1/2轴发挥关键作用。 展开更多
关键词 乳腺肿瘤 肿瘤微环境 细胞增殖 细胞凋亡 细胞运动 骨髓间充质干细胞
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miR-21低表达对垂体瘤细胞系RC-4BC增殖、凋亡的影响及与PTEN靶向关系
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作者 宋志远 任洪波 +1 位作者 韩晓正 牛国栋 《山东医药》 CAS 2024年第9期24-28,共5页
目的观察微小RNA-21(miR-21)低表达对垂体瘤细胞系RC-4BC增殖、凋亡的影响,并分析其与第10号染色体丢失的张力蛋白同源磷酸酶基因(PTEN)的靶向关系。方法取对数生长期的RC-4BC细胞分为两组,沉默组转染miR-21抑制物miR-21 inhibitor,阴... 目的观察微小RNA-21(miR-21)低表达对垂体瘤细胞系RC-4BC增殖、凋亡的影响,并分析其与第10号染色体丢失的张力蛋白同源磷酸酶基因(PTEN)的靶向关系。方法取对数生长期的RC-4BC细胞分为两组,沉默组转染miR-21抑制物miR-21 inhibitor,阴性对照组转染抑制物阴性对照NC-inhibitor,采用RT-PCR法检测miR-21、第10号染色体丢失的张力蛋白同源磷酸酶基因(PTEN)mRNA,采用CCK8实验观察两组细胞增殖能力(以OD值表示),采用平板克隆实验观察两组细胞集落形成能力(以集落形成数表示),采用流式细胞术观察两组细胞凋亡率并观察细胞周期分布情况。收集RC-4BC细胞制备单细胞悬液,分别将miR-21 mimics或NC-mimics与PTEN-WT或PTEN-MUT共转染至RC-4BC细胞,转染后细胞标记为miR-21 mimics+PTEN-WT组、NC-mimics+PTEN-WT组、miR-21 mimics+PTEN-MUT组、NC-mimics+PTEN-MUT组,采用双荧光素酶报告基因实验验证miR-21与PTEN的靶向关系。结果沉默组RC-4BC细胞中miR-21、PTEN mRNA相对表达量分别为0.30±0.08、2.89±0.14,阴性对照组RC-4BC细胞中miR-21、PTEN mRNA相对表达量分别为1.01±0.02、0.99±0.03,两组相比,P均<0.05。沉默组RC-4BC细胞24 h、48 h、72 h时OD值均低于阴性对照组(P均<0.05)。沉默组RC-4BC细胞集落形成数低于阴性对照组(P<0.05)。沉默组RC-4BC细胞凋亡率高于阴性对照组(P<0.05)。沉默组RC-4BC细胞G0/G1期占比65.65%±7.82%、S期占比19.25%±3.70%,阴性对照组RC-4BC细胞G0/G1期占比45.62%±5.03%、S期占比35.72%±4.67%,两组相比,P均<0.05。miR-21 mimics+PTEN-WT组、NC-mimics+PTEN-WT组、miR-21 mimics+PTEN-MUT组、NC-mimics+PTEN-MUT组细胞的相对荧光素酶活性分别为0.39±0.07、1.02±0.03、1.01±0.04、1.00±0.03,其中miR-21 mimics+PTEN-WT组相对荧光素酶活性与其他各组相比,P均<0.05。结论沉默miR-21能够移至垂体瘤细胞系RC-4BC的增殖、促进其凋亡,其机制可能与靶向调控PTEN基因有关。 展开更多
关键词 微小RNA-21 垂体瘤 RC-4BC细胞 第10号染色体丢失的张力蛋白同源磷酸酶基因 细胞增殖 细胞凋亡 细胞周期
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芒柄花素通过miR-1229/ZDHHC9分子轴对胶质瘤细胞增殖、活力及凋亡的影响
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作者 黄渊智 刘红玲 《世界中医药》 CAS 北大核心 2024年第3期329-335,341,共8页
目的:探讨芒柄花素对胶质瘤细胞增殖和凋亡的影响及其分子作用机制。方法:构建皮下移植瘤小鼠模型,灌胃给予5.72、14.31、22.9、31.49 mg/kg剂量的芒柄花素,观察肿瘤重量、体积变化;免疫组织化学法检测肿瘤组织增殖细胞核抗原(PCNA)表... 目的:探讨芒柄花素对胶质瘤细胞增殖和凋亡的影响及其分子作用机制。方法:构建皮下移植瘤小鼠模型,灌胃给予5.72、14.31、22.9、31.49 mg/kg剂量的芒柄花素,观察肿瘤重量、体积变化;免疫组织化学法检测肿瘤组织增殖细胞核抗原(PCNA)表达。用不同浓度(20、50、80、110μmol/L)的芒柄花素处理TJ905细胞,并将TJ905细胞分为空白对照组、110μmol/L芒柄花素组、110μmol/L芒柄花素+miR-1229组、110μmol/L芒柄花素+miR-1229+ZDHHC9组、miR-NC组、miR-1229 mimic组。用Edu实验、CCK-8实验检测细胞增殖能力,TUNEL实验检测细胞凋亡,实时荧光定量聚合酶链反应(RT-qPCR)实验检测miR-1229、ZDHHC9 mRNA表达水平,在线网站及双荧光素酶报告基因法验证miR-1229与ZDHHC9靶向结合。结果:与空白对照组比较,不同剂量的芒柄花素处理组肿瘤体积、重量及PCNA蛋白表达均显著降低(均P<0.05)。与对照组比较,不同浓度(20、50、80、110μmol/L)的芒柄花素处理后,细胞增殖率显著降低,凋亡率显著升高(均P<0.05);与110μmol/L芒柄花素组比较,110μmol/L芒柄花素+miR-1229组细胞增殖率、细胞活力均显著降低,凋亡率显著增加(均P<0.05);与110μmol/L芒柄花素+miR-1229组比较,110μmol/L芒柄花素+miR-1229+ZDHHC9组细胞增殖率、细胞活力均显著增加,凋亡率显著下降(均P<0.05);双荧光素酶报告基因实验验证miR-1229与ZDHHC9靶向结合。结论:芒柄花素可能通过miR-1229/ZDHHC9分子轴抑制胶质瘤细胞增殖,并诱导其凋亡。 展开更多
关键词 芒柄花素 胶质瘤 微小核糖核酸-1229 棕榈酰化转移酶9 细胞增殖 细胞凋亡 移植瘤 分子机制
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基于Wnt/β-连环蛋白通路探究金天格对肿瘤坏死因子-α诱导的小鼠MC3T3E1细胞生物学功能的影响实验研究
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作者 张婷 刘丹 +1 位作者 贠丹丹 耿男 《陕西医学杂志》 CAS 2024年第6期744-747,753,共5页
目的:探讨金天格通过调节Wnt/β-连环蛋白(Wnt/β-catenin)通路对肿瘤坏死因子-α(TNF-α)诱导的小鼠成骨细胞(MC3T3E1)细胞生物学功能的影响。方法:体外培养MC3T3E1细胞,分为对照组、TNF-α组(50 ng/ml TNF-α)、L-金天格组(50 ng/ml T... 目的:探讨金天格通过调节Wnt/β-连环蛋白(Wnt/β-catenin)通路对肿瘤坏死因子-α(TNF-α)诱导的小鼠成骨细胞(MC3T3E1)细胞生物学功能的影响。方法:体外培养MC3T3E1细胞,分为对照组、TNF-α组(50 ng/ml TNF-α)、L-金天格组(50 ng/ml TNF-α+10^(-6) g/L金天格)、M-金天格组(50 ng/ml TNF-α+10-5 g/L金天格)、H-金天格组(50 ng/ml TNF-α+10^(-4) g/L金天格)、Dickkopf-1(DKK-1)组(50 ng/ml TNF-α+10 ng/ml Wnt/β-catenin通路抑制剂DKK-1)、H-金天格+LiCl组(50 ng/ml TNF-α+10^(-4) g/L金天格+20μmol/L Wnt/β-catenin通路激活剂LiCl)。用CCK-8试剂盒对细胞活性进行检测,用流式细胞仪对细胞凋亡情况进行检测,用酶联免疫吸附试验对细胞白细胞介素-1β(IL-1β)和IL-6水平进行检测,用Western blot对细胞凋亡相关蛋白及Wnt/β-catenin信号通路蛋白表达情况进行检测。结果:与对照组比较,TNF-α组细胞活性、B淋巴细胞瘤-2(Bcl-2)、细胞程序性死亡配体-1(PD-L1)蛋白表达降低,细胞凋亡率、IL-1β、IL-6水平以及B细胞淋巴瘤(Bax)、β-catenin、转录因子7样2(TCF7L2)、细胞周期蛋白D1(Cyclin D1)蛋白表达升高(均P<0.05)。与TNF-α组比较,L-金天格组、M-金天格组、H-金天格组、DKK-1组细胞活性及Bcl-2、PD-L1蛋白表达升高,细胞凋亡率、IL-1β、IL-6水平以及Bax、β-catenin、TCF7L2、Cyclin D1蛋白表达降低(均P<0.05)。与H-金天格组比较,H-金天格+LiCl组细胞活性及Bcl-2、PD-L1蛋白表达降低,细胞凋亡率、IL-1β、IL-6水平以及Bax、β-catenin、TCF7L2、Cyclin D1蛋白表达升高(均P<0.05)。结论:金天格可能通过抑制Wnt/β-catenin通路减轻TNF-α诱导的MC3T3E1细胞损伤。 展开更多
关键词 金天格 肿瘤坏死因子-Α MC3T3E1细胞 WNT/Β-CATENIN通路 细胞增殖 细胞凋亡 小鼠
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靶向调控PTEN和PI3K对肾母细胞瘤细胞增殖和凋亡的影响
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作者 耿耿 鹿洪亭 +1 位作者 李庆浩 明明 《精准医学杂志》 2024年第2期114-119,共6页
目的探讨靶向调控张力蛋白同源物(PTEN)和磷脂酰肌醇激酶(PI3K)对肾母细胞瘤细胞增殖和凋亡的影响及其机制。方法选取15例肾母细胞瘤患儿的术后肿瘤组织及癌旁正常组织,采用免疫印迹实验及实时荧光定量PCR方法检测组织中PTEN和PI3K蛋白... 目的探讨靶向调控张力蛋白同源物(PTEN)和磷脂酰肌醇激酶(PI3K)对肾母细胞瘤细胞增殖和凋亡的影响及其机制。方法选取15例肾母细胞瘤患儿的术后肿瘤组织及癌旁正常组织,采用免疫印迹实验及实时荧光定量PCR方法检测组织中PTEN和PI3K蛋白及mRNA的表达水平;将肾母细胞瘤SK-NEP-1细胞分为对照组(A组,转染NC siRNA及Flag空载体)、PTEN过表达组(B组,转染NC siRNA及Flag-PTEN表达载体)、PI3K敲低组(C组,转染siPI3K及Flag空载体)、联合靶向组(D组,转染siPI3K及Flag-PTEN)。采用免疫印迹实验检测各组转染24 h后SK-NEP-1细胞中PI3K、蛋白激酶A(AKT)及磷酸化蛋白激酶A(p-AKT)的表达水平;采用CCK-8实验检测干预第24、48、72小时时SK-NEP-1细胞增殖情况;采用流式细胞术分析各组SK-NEP-1细胞转染24 h后细胞凋亡率及细胞周期。结果与癌旁正常组织相比,肾母细胞瘤肿瘤组织中PI3K蛋白及mRNA表达水平均显著升高(t=22.862、7.098,P<0.05),PTEN蛋白及mRNA表达水平均显著降低(t=25.634、8.379,P<0.05);体外细胞实验结果显示,B、C、D组SK-NEP-1细胞中p-AKT蛋白水平明显低于A组(t=8.386~11.900,P<0.05);CCK-8实验显示,干预第48、72小时时,B、C、D组SK-NEP-1细胞吸光度值明显低于A组(t=5.163~8.647,P<0.05),干预第72小时时,D组SK-NEP-1细胞吸光度值明显低于B、C组(t=3.982、4.021,P<0.05);B、C、D组SK-NEP-1细胞早期凋亡率和晚期凋亡率均明显高于A组(t=4.673~9.563,P<0.05),D组SK-NEP-1细胞早期凋亡率和晚期凋亡率明显高于B、C组(t=5.829~8.075,P<0.05);B、C、D组SK-NEP-1细胞G 1期细胞比例明显高于A组(t=7.518~14.747,P<0.05),S期细胞比例明显低于A组(t=8.029~13.451,P<0.05),D组SK-NEP-1细胞G 1期细胞比例明显高于B、C组(t=9.930、9.732,P<0.05),S期细胞比例明显低于B、C组(t=10.281、9.927,P<0.05)。结论相比于单一靶向PTEN或PI3K,联合靶向调控PTEN和PI3K可更显著抑制肾母细胞瘤细胞生长,促进肾母细胞瘤细胞凋亡,其作用机制可能与其抑制PI3K/AKT信号通路、阻断细胞周期有关。 展开更多
关键词 WILMS瘤 细胞增殖 细胞凋亡 细胞周期 PTEN磷酸水解酶 磷酸肌醇3-激酶类
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STAT3抑制剂stattic对小鼠结肠癌CT26细胞增殖和凋亡的影响
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作者 张瑾宬 缪心怡 +3 位作者 操蓉 黎敏 张儒雅 刘丽娜 《贵州医科大学学报》 CAS 2024年第4期522-528,560,共8页
目的探讨信号转导和转录激活因子3(STAT3)抑制剂盐酸萘替芬(stattic)对小鼠结肠癌CT26细胞增殖和凋亡的影响和作用机制。方法采用0μmol/L、1μmol/L、5μmol/L、10μmol/L stattic溶液处理小鼠结肠癌CT26细胞,通过CCK-8实验、细胞克隆... 目的探讨信号转导和转录激活因子3(STAT3)抑制剂盐酸萘替芬(stattic)对小鼠结肠癌CT26细胞增殖和凋亡的影响和作用机制。方法采用0μmol/L、1μmol/L、5μmol/L、10μmol/L stattic溶液处理小鼠结肠癌CT26细胞,通过CCK-8实验、细胞克隆形成实验、细胞划痕实验、Transwell侵袭实验以及流式细胞术检测细胞活力、增殖、迁移、侵袭、周期和凋亡情况;利用Western blot法检测stattic对小鼠结肠癌细胞磷酸化STAT3(p-STAT3)表达的影响;通过实时荧光定量多聚核苷酶链式反应(RT-qPCR)检测stattic作用后CT26细胞B淋巴细胞瘤-2(Bcl-2)和人跨膜受体蛋白Notch-1(Notch-1)的表达。结果与0μmol/L组相比,stattic溶液组CT26细胞的活力及增殖能力降低(P<0.001)、迁移率和侵袭率降低(P<0.001),细胞凋亡率随浓度增加而增加(P<0.0001);stattic能将CT26细胞周期阻断于G1期,进而阻止CT26细胞的增殖;Western blot结果显示stattic抑制CT26细胞p-STAT3的表达(P<0.05);RT-qPCR检测结果表明stattic下调CT26细胞Bcl-2和Notch1的表达(P<0.05)。结论stattic通过阻断STAT3信号,抑制p-STAT3蛋白的表达,下调下游抗凋亡分子Bcl-2和Notch1信号分子的表达从而抑制CT26细胞增殖促进细胞凋亡。 展开更多
关键词 小鼠结肠癌 STAT3抑制剂stattic 细胞增殖 细胞凋亡 细胞迁移 肿瘤治疗
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Photoinduced Carbene for Effective Photodynamic Therapy Against Hypoxic Cancer Cells 被引量:1
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作者 Zhanghua Sun Yuncong Chen +4 位作者 Shankun Yao Hao Yuan Dongfan Song Zijian Guo Weijiang He 《CCS Chemistry》 CSCD 2023年第9期2078-2087,共10页
Photodynamic therapy(PDT)has attracted much attention because of its advantages over chemotherapy,such as broad spectrum,high selectivity,and low drug resistance.However,most photosensitizers(PSs)used in PDT are O_(2)... Photodynamic therapy(PDT)has attracted much attention because of its advantages over chemotherapy,such as broad spectrum,high selectivity,and low drug resistance.However,most photosensitizers(PSs)used in PDT are O_(2)-dependent and show limited therapeutic efficacy toward hypoxic solid tumors.Therefore,developing PSs that produce reactive oxygen species(ROS)in an O_(2)-independent manner is highly demanded.Herein,we constructed a novel O_(2)-independent PS(TPA-N)based onα-diazo-aryl acetate,which could generate reactive carbene under visible light irradiation.Photoinduced carbene could react with biosubstrates and cause significant carbene stress and ROS,effectively killing tumor cells even under hypoxic conditions.TPA-N showed much less O_(2)dependence compared with traditional PDT reagent protoporphyrin IX.A mechanistic study suggested that TPAN could induce mitochondrial membrane potential collapse and upregulate apoptosis-related proteins upon light irradiation.This work provided a reliable strategy for developing O_(2)-independent PSs against hypoxic tumor cells through photoinduced carbene. 展开更多
关键词 CARBENE apoptosis HYPOXIC photodynamic therapy tumor cells
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欣力康胶囊对血液性肿瘤细胞的增殖抑制作用研究
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作者 唐欣欣 胡小蓓 +2 位作者 苏明波 张丽娜 钟利 《中南药学》 CAS 2024年第6期1558-1565,共8页
目的 探索欣力康胶囊在血液肿瘤上应用的可能性,以拓展欣力康胶囊的应用范围。方法 采用MTS比色法检测欣力康胶囊对8株人血液性肿瘤细胞的增殖抑制作用;采用流式细胞术检测欣力康胶囊对急性髓系白血病MV-4-11细胞周期阻滞和凋亡促进的作... 目的 探索欣力康胶囊在血液肿瘤上应用的可能性,以拓展欣力康胶囊的应用范围。方法 采用MTS比色法检测欣力康胶囊对8株人血液性肿瘤细胞的增殖抑制作用;采用流式细胞术检测欣力康胶囊对急性髓系白血病MV-4-11细胞周期阻滞和凋亡促进的作用;采用蛋白免疫印迹法检测欣力康胶囊对MV-4-11细胞内pro-Caspase 3、cleaved-Caspase 3以及NF-κB p65蛋白水平的影响;依托MV-4-11皮下移植瘤裸小鼠模型,考察欣力康胶囊对荷瘤小鼠肿瘤生长的影响。结果 欣力康胶囊对MV-4-11、RS4;11、MM.1S、RPMI-8226、Mino、Jeko-1、OCI-LY10和TMD8细胞增殖抑制的IC_(50)值分别为(54.05±6.33)、(125.33±2.46)、(655.87±7.95)、(153.33±8.50)、(188.70±9.11)、(180.87±7.31)、(186.10±6.55)、(253.53±8.88)μg·mL^(-1);欣力康胶囊可促进MV-4-11细胞凋亡,且具有浓度依赖性,当质量浓度达到500 μg·mL^(-1)时凋亡率为(99.41±0.36)%(P<0.001),而对细胞周期影响较弱;欣力康胶囊可促进MV-4-11细胞中凋亡相关蛋白pro-Caspase 3的剪切,下调NF-κB p65,且呈一定的浓度依赖性;临床用药浓度(1000 mg·kg^(-1))的欣力康胶囊能够显著抑制荷MV-4-11皮下移植瘤小鼠的肿瘤生长,其抑瘤率为57.28%。结论 欣力康胶囊对8种血液性肿瘤细胞株的增殖均有一定的抑制作用,其中对人急性髓性白血病MV-4-11细胞的增殖抑制作用最优,其机制主要是抑制NF-κB通路以及促进细胞凋亡,且在体内药效上,临床用药浓度的欣力康胶囊可显著抑制荷MV-4-11皮下移植瘤小鼠肿瘤的生长。以上结果提示欣力康胶囊可用于血液性肿瘤的辅助治疗。 展开更多
关键词 欣力康胶囊 血液性肿瘤 增殖抑制 细胞周期 凋亡
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Function of apoptosis and expression of the proteins Bcl-2,p53 and C-myc in the development of gastric cancer 被引量:91
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作者 An Gao Xu Shao Guang Li Ji Hong Liu Ai Hua Gan Research Laboratory of Digestive Disease,Huizhou Central People’s Hospital,Huizhou 516001,Guangdong Province,ChinaDr.An Gao Xu graduated from Guangdong Medical College in 1984.He is an associate physician-in-chief,specializing in the research and treatment of gastrointestinal and liver tumors.He has published 24 papers and 1 book. 《World Journal of Gastroenterology》 SCIE CAS CSCD 2001年第3期403-406,共4页
INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 a... INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 and C-myc protein expression in the development of gastric cancer . 展开更多
关键词 stomach neoplasms/drug therapy apoptosis PRECANCEROUS conditions PROLIFERATING cell nuclear antigen immunohistochemistry protein P53 fiuorouracil MITOMYCINS CYTOMETRY
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重组慢病毒LV-hTERT-tumstatin-dNK对黑色素瘤细胞A-375增殖和凋亡的影响研究 被引量:1
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作者 董晓申 郑新宇 《中国美容整形外科杂志》 CAS 2018年第5期301-303,共3页
目的构建重组慢病毒LV-hTERT-tumstatin-dNK,探讨其对黑色素瘤A-375细胞增殖和凋亡的影响。方法用不同病毒感染复数(MOI)感染黑色素瘤细胞A-375及人正常皮肤细胞HFF;以MTT法检测细胞增殖情况;并以流式细胞术检测细胞凋亡情况,同时设空... 目的构建重组慢病毒LV-hTERT-tumstatin-dNK,探讨其对黑色素瘤A-375细胞增殖和凋亡的影响。方法用不同病毒感染复数(MOI)感染黑色素瘤细胞A-375及人正常皮肤细胞HFF;以MTT法检测细胞增殖情况;并以流式细胞术检测细胞凋亡情况,同时设空白对照组。结果重组慢病毒LV-hTERT-tumstatin-dNK转染后在黑色素瘤细胞A-375中呈特异表达,在人正常皮肤细胞HFF中无表达。黑色素瘤细胞A-375的增殖随MOI增加而逐渐受到抑制,HFF细胞的增殖无明显变化。慢病毒治疗组A-375细胞凋亡明显优于对照组,而对HFF细胞无明显作用。结论重组慢病毒LV-hTERT-tumstatin-dNK可靶向促进黑色素瘤细胞A-375的细胞凋亡,并抑制其增殖。 展开更多
关键词 重组慢病毒 黑色素瘤 细胞增殖 细胞凋亡 Dm-dNK 肿瘤抑制
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Advance in Research on Anti-tumor Pharmacological Mechanism of Cryptotanshinone
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作者 Jiaru WANG Lingqi MENG +9 位作者 Yi ZHANG Hao WANG Wanting XU Yang LIU Yu ZHANG Tong ZHANG Shinong WANG Yuqing ZHAI Yinghua LUO Chenghao JIN 《Medicinal Plant》 CAS 2018年第6期11-14,共4页
Cryptotanshinone is a natural active ingredient extracted from traditional Chinese medicine Radix Salviae Miltiorrhizae.It has a variety of pharmacological effects,in addition to preventing and treating ischemic disea... Cryptotanshinone is a natural active ingredient extracted from traditional Chinese medicine Radix Salviae Miltiorrhizae.It has a variety of pharmacological effects,in addition to preventing and treating ischemic diseases,coronary artery disease Alzheimer's disease and fighting tumors.The anti-tumor effects are exerted through inhibiting tumor cell proliferation,inducing tumor cell apoptosis,inhibiting tumor metastasis and invasion,inhibiting angiogenesis and regulating reactive oxygen species levels.The studies on the anti-tumor activity and action mechanism of cryptotanshinone in recent years are reviewed in this article. 展开更多
关键词 CRYPTOTANSHINONE ANTI-tumor cell proliferation apoptosis
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Study on Anti-tumor Activity and Mechanism of Isoorientin
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作者 Tong ZHANG Yu ZHANG +3 位作者 Shinong WANG Jiaru WANG Yinghua LUO Chenghao JIN 《Medicinal Plant》 CAS 2019年第1期7-9,共3页
Isoorientin can play an anti-tumor effect through interfering with tumor cell proliferation, inducing tumor cell apoptosis, regulating reactive oxygen species level, inducing tumor cell autophagy, blocking tumor cell ... Isoorientin can play an anti-tumor effect through interfering with tumor cell proliferation, inducing tumor cell apoptosis, regulating reactive oxygen species level, inducing tumor cell autophagy, blocking tumor cell infiltration and metastasis, inhibiting tumor neovascularization and other pathways. This paper reviews the research progress of anti-tumor activity and mechanism of isoorientin in recent years. 展开更多
关键词 Isoorientin ANTI-tumor apoptosis AUTOPHAGY cell proliferation
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一种新型α-甲基查尔酮的制备、抗宫颈癌活性及对Akt-MDM2-p53信号通路的影响 被引量:1
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作者 艾孜提艾力·艾海提 艾克拜尔·买买提 木合布力·阿布力孜 《中国药理学通报》 CAS CSCD 北大核心 2023年第7期1399-1400,共2页
课题组前期实验中发现,新疆胀果甘草中的微量特殊成分甘草查尔酮A(LicoA)具有较强的体外抗宫颈癌活性并对多种肿瘤干细胞标记物具有显著的下调作用,但是因其在胀果甘草中含量极低(约0.36%)^([1])并且合成制备成本昂贵,制约其开发利用。... 课题组前期实验中发现,新疆胀果甘草中的微量特殊成分甘草查尔酮A(LicoA)具有较强的体外抗宫颈癌活性并对多种肿瘤干细胞标记物具有显著的下调作用,但是因其在胀果甘草中含量极低(约0.36%)^([1])并且合成制备成本昂贵,制约其开发利用。因此,本文旨在对LicoA进行结构修饰,合成一种具有替代LicoA潜力的新型查尔酮类化合物并研究其抗宫颈癌活性。 展开更多
关键词 α-甲基查尔酮衍生物 宫颈癌 癌细胞增殖抑制 促进细胞凋亡 肿瘤干细胞标记物 作用机制
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灵芝破壁孢子粉的抗肿瘤活性研究 被引量:1
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作者 顾越峰 顾峣 +1 位作者 何创龙 周小军 《海峡药学》 2023年第1期15-21,共7页
目的研究灵芝破壁孢子粉对乳腺癌和口腔癌生长的抑制作用。方法采用灵芝破壁孢子粉乙醇提取物处理乳腺癌MCF-7细胞、口腔癌KB细胞和宫颈癌HeLa细胞,检测三种细胞的增殖情况。构建裸鼠乳腺癌MCF-7移植瘤和口腔癌KB移植瘤模型,评价灵芝破... 目的研究灵芝破壁孢子粉对乳腺癌和口腔癌生长的抑制作用。方法采用灵芝破壁孢子粉乙醇提取物处理乳腺癌MCF-7细胞、口腔癌KB细胞和宫颈癌HeLa细胞,检测三种细胞的增殖情况。构建裸鼠乳腺癌MCF-7移植瘤和口腔癌KB移植瘤模型,评价灵芝破壁孢子粉进行灌胃治疗后的肿瘤生长抑制情况。结果灵芝破壁孢子粉乙醇提取物显著抑制MCF-7、KB和HeLa细胞的增殖,且该抑制效应呈剂量依赖性。在MCF-7移植瘤模型中,低、中、高3组灵芝破壁孢子粉给药剂量均有显著的肿瘤生长抑制作用,肿瘤抑制率分别为50.35%、65.72%和80.55%;但在KB移植瘤模型中,低剂量组没有显示显著的肿瘤生长抑制作用,而中剂量组和高剂量组表现出明显的抗肿瘤作用,3组肿瘤抑制率分别为4.03%、37.63%和40.59%。结论灵芝破壁孢子粉能够抑制MCF-7乳腺癌和KB口腔癌荷瘤裸鼠肿瘤的生长。 展开更多
关键词 灵芝破壁孢子粉 细胞增殖 细胞凋亡 抗肿瘤
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