Oridonin, a diterpenoid isolated from Rabdosia rubescens, has been proven to possess various pharmacological and physiological effects such as anti-inflammation, anti-bacterial, and anti-neoplastic, although in recent...Oridonin, a diterpenoid isolated from Rabdosia rubescens, has been proven to possess various pharmacological and physiological effects such as anti-inflammation, anti-bacterial, and anti-neoplastic, although in recent years, more attention has been paid to its anti-neoplastic effects. For example, oridonin can trigger cell cycle arrest, apoptosis, and autophagy in different neoplastic cell lines. This review summarizes the considerable knowledge about the action mechanisms of oridonin that has been studied in recent years. The present observations reveal the novel anti-neoplastic effects of oridonin, suggesting that it may be effective as a potent alternative or adjunct drug to conventional chemotherapy.展开更多
Objective To study the inhibitory effects of melatonin and its inhibitory mechanism on the growth of human bladder carcinoma T24. Methods The inhibitory effects of melatonin with various concentrations on the human ...Objective To study the inhibitory effects of melatonin and its inhibitory mechanism on the growth of human bladder carcinoma T24. Methods The inhibitory effects of melatonin with various concentrations on the human bladder carcinoma T24 lines in vitro were determined by MTT assay. The mechanism of the inhibition was observed by flow cytometry (FCM) and transmission electron microscopy (TEM). Results The 30% inhibition concentration (IC 30) value was 0.71 mmol·L -1 and the 50% inhibition concentration (IC 50) value was 1.20 mmol·L -1. The population doubling time of T24 cells treated with melatonin at 0.71 mmol·L -1 was 43.2 hours, which was significant different from that of 34.6 hours of the control group. Using FCM, we found that the cell percentage increased during the G 1 phase, but decreased during the S stage. The degenerated ultra-structure of the cell treated with melatonin was also observed by TEM. Conclusion The results suggest that melatonin can inhibit the growth of human bladder carcinoma T24. The inhibitory effects of melatonin might be the prolonging of the staging from G 1 to S in the cell cycle.展开更多
目的体外研究抗雄激素条件下癌相关成纤维细胞(cancer associated fibroblasts,CAFs)对雄激素依赖性前列腺癌LNCaP细胞增殖能力的影响。方法体外原代培养源于人前列腺癌基质的CAFs,并用抗雄激素制剂氟他胺(Flutamide)进行处理,制备出条...目的体外研究抗雄激素条件下癌相关成纤维细胞(cancer associated fibroblasts,CAFs)对雄激素依赖性前列腺癌LNCaP细胞增殖能力的影响。方法体外原代培养源于人前列腺癌基质的CAFs,并用抗雄激素制剂氟他胺(Flutamide)进行处理,制备出条件培养液CAFs-Flu-CM。CAFs原代培养液制备出另一条件培养液CAFs-CM作为对照研究。观察LNCaP细胞在RPMI-1640培养液、CAFs-CM培养液和CAFs-Flu-CM培养液中的生长增殖能力和差异性。结果与RPMI-1640培养液培养的LNCaP细胞相比,10-6mol/L Flutamide可抑制其生长(76.55±7.1 vs 114.51±9.8,P<0.05);浓度为0.75g/L的CAFs-CM却可显著提高LNCaP细胞的增殖能力(237.26±18.3 vs 114.51±9.8,P<0.05)。经10-6mol/L Flutamide处理后,CAFs-Flu-CM刺激LNCaP细胞增殖的能力明显减弱(32.73±5.6 vs 237.26±18.3,P<0.05)。结论源于人前列腺癌基质的CAFs可提高LNCaP细胞的增殖能力,但经抗雄制剂处理后,CAFs功能受到干扰,刺激LNCaP细胞增殖的能力明显减弱。联合靶向CAFs的肿瘤治疗策略可能会提高前列腺癌内分泌治疗的有效性,可作为临床治疗前列腺癌新的靶点。展开更多
基金Supported by National Natural Science Foundation of China (No.81274142,No.30300139)Natural Science Foundation of Science and Technology Commission of Shanghai Municipality (No.11ZR1423400)Key Project of Shanghai Municipal Education Commission(No.07zz43)
文摘Oridonin, a diterpenoid isolated from Rabdosia rubescens, has been proven to possess various pharmacological and physiological effects such as anti-inflammation, anti-bacterial, and anti-neoplastic, although in recent years, more attention has been paid to its anti-neoplastic effects. For example, oridonin can trigger cell cycle arrest, apoptosis, and autophagy in different neoplastic cell lines. This review summarizes the considerable knowledge about the action mechanisms of oridonin that has been studied in recent years. The present observations reveal the novel anti-neoplastic effects of oridonin, suggesting that it may be effective as a potent alternative or adjunct drug to conventional chemotherapy.
文摘Objective To study the inhibitory effects of melatonin and its inhibitory mechanism on the growth of human bladder carcinoma T24. Methods The inhibitory effects of melatonin with various concentrations on the human bladder carcinoma T24 lines in vitro were determined by MTT assay. The mechanism of the inhibition was observed by flow cytometry (FCM) and transmission electron microscopy (TEM). Results The 30% inhibition concentration (IC 30) value was 0.71 mmol·L -1 and the 50% inhibition concentration (IC 50) value was 1.20 mmol·L -1. The population doubling time of T24 cells treated with melatonin at 0.71 mmol·L -1 was 43.2 hours, which was significant different from that of 34.6 hours of the control group. Using FCM, we found that the cell percentage increased during the G 1 phase, but decreased during the S stage. The degenerated ultra-structure of the cell treated with melatonin was also observed by TEM. Conclusion The results suggest that melatonin can inhibit the growth of human bladder carcinoma T24. The inhibitory effects of melatonin might be the prolonging of the staging from G 1 to S in the cell cycle.
文摘目的体外研究抗雄激素条件下癌相关成纤维细胞(cancer associated fibroblasts,CAFs)对雄激素依赖性前列腺癌LNCaP细胞增殖能力的影响。方法体外原代培养源于人前列腺癌基质的CAFs,并用抗雄激素制剂氟他胺(Flutamide)进行处理,制备出条件培养液CAFs-Flu-CM。CAFs原代培养液制备出另一条件培养液CAFs-CM作为对照研究。观察LNCaP细胞在RPMI-1640培养液、CAFs-CM培养液和CAFs-Flu-CM培养液中的生长增殖能力和差异性。结果与RPMI-1640培养液培养的LNCaP细胞相比,10-6mol/L Flutamide可抑制其生长(76.55±7.1 vs 114.51±9.8,P<0.05);浓度为0.75g/L的CAFs-CM却可显著提高LNCaP细胞的增殖能力(237.26±18.3 vs 114.51±9.8,P<0.05)。经10-6mol/L Flutamide处理后,CAFs-Flu-CM刺激LNCaP细胞增殖的能力明显减弱(32.73±5.6 vs 237.26±18.3,P<0.05)。结论源于人前列腺癌基质的CAFs可提高LNCaP细胞的增殖能力,但经抗雄制剂处理后,CAFs功能受到干扰,刺激LNCaP细胞增殖的能力明显减弱。联合靶向CAFs的肿瘤治疗策略可能会提高前列腺癌内分泌治疗的有效性,可作为临床治疗前列腺癌新的靶点。
