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- 주제어 : Human colorectal adenocarcinoma cancer cell (검색결과 3 건)
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백화사설초 추출물의 인체 대장암 세포주에서 항암효능에 관한 연구
이수진,김희진,심지환,박현수,김병주,Lee, Soojin,Gim, Huijin,Shim, Ji Hwan,Park, Hyun Soo,Kim, Byung Joo 대한한의학방제학회 2015 大韓韓醫學方劑學會誌 Vol.23 No.1
Objectives : The purpose of this study was to investigate the anti-cancer effects of Oldenlandia diffusa extract on WiDr human colorectal adenocarcinoma cells. Methods : We examined cell death by (3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium bromide) MTT assay and the caspase 3 and 9 activity assay with Oldenlandia diffusa extract. To examine the inhibitory effects of Oldenlandia diffusa extract, we performed a cell cycle (sub-G1) analysis and mitochondrial membrane potential for the WiDr cells after 24 hours with Oldenlandia diffusa extract. Results : 1. Oldenlandia diffusa extract induced cell death in WiDr cells. 2. The sub-G1 peak was increased by Oldenlandia diffusa extract in WiDr cells. 3. Oldenlandia diffusa extract leads to increase the mitochondrial membrane depolarization in WiDr cells. 4. Oldenlandia diffusa extract increases caspase 3 and 9 activities in WiDr cells. 5. Oldenlandia diffusa extract combined with several anti-cancer drugs (paclitaxel, 5-fluorouracil, cisplatin, ectoposide, doxorubicin and docetaxel) markedly inhibited the growth of WiDr cells compared to Oldenlandia diffusa extract and anti-cancer drugs alone. Conclusions : Oldenlandia diffusa extract has an apoptotic role in human colorectal cancer cells and a potential role in developing therapeutic agents against colorectal cancer.
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이수진,심지환,김희진,박현수,김병주 대한약침학회 2016 Journal of pharmacopuncture Vol.19 No.1
Objectives: Oldenlandia diffusa is traditionally used to relieve the symptoms of and to treat various diseases, but its anti-cancer activity has not been well studied. In the present study, the authors investigated the anti-cancer effects of an ethanol extract of Oldenlandia diffusa (EOD) on HT-29 human adenocarcinoma cells. Methods: Cells were treated with different concentrations of an EOD, and cell death was assessed by using a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay. Analyses of the sub G1 peak, the caspase-3 and -9 activities, and the mitochondrial membrane depolarizations were conducted to confirm cell death by apoptosis. Also, intracellular reactive oxygen species (ROS) generation was determined using carboxy-H2DCFDA (5-(and-6)-carboxy-20,70-dichlorodihydrofluorescein diacetate). Results: EOD inhibited the proliferation of HT-29 cells for 24 hours by 78.6% ± 8.1% at 50 μg/mL, 74.4% ± 4.6% at 100 μg/mL, 65.9% ± 5.2% at 200 μg/mL, 51.4% ± 6.2% at 300 μg/mL, and by 41.7% ± 8.9% at 400 μg/mL, and treatment for 72 hours reduced the proliferation at the corresponding concentrations by 43.3% ± 8.8%, 24.3 ± 5.1 mV, 13.5 ± 3.2 mV, 6.5 ± 2.3 mV, and by 2.6 ± 2.3 mV. EOD increased the number of cells in the sub-G1 peak in a dose-dependent manner. The mitochondrial membrane depolarization was elevated by EOD. Also, caspase activities were dose-dependently elevated in the presence of EOD, and these activities were repressed by a pan-caspase inhibitor (zVAD-fmk). The ROS generation was significantly increased by EOD and N-acetyl-L-cysteine (NAC; a ROS scavenger) remarkably abolished EOD-induced cell death. In addition, a combination of sub-optimal doses of EOD and chemotherapeutic agents noticeably suppressed the growth of HT-29 cancer cells. Conclusion: These results indicate that EOD might be an effective chemotherapeutic for the treatment of human colorectal cancer.
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Lee, Soojin,Shim, Ji Hwan,Gim, Huijin,Park, Hyun Soo,Kim, Byung Joo KOREAN PHARMACOPUNCTURE INSTITUTE 2016 Journal of pharmacopuncture Vol.19 No.1
Objectives: Oldenlandia diffusa is traditionally used to relieve the symptoms of and to treat various diseases, but its anti-cancer activity has not been well studied. In the present study, the authors investigated the anti-cancer effects of an ethanol extract of Oldenlandia diffusa (EOD) on HT-29 human adenocarcinoma cells. Methods: Cells were treated with different concentrations of an EOD, and cell death was assessed by using a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay. Analyses of the sub G1 peak, the caspase-3 and -9 activities, and the mitochondrial membrane depolarizations were conducted to confirm cell death by apoptosis. Also, intracellular reactive oxygen species (ROS) generation was determined using carboxy-H2DCFDA (5-(and-6)-carboxy-20,70-dichlorodihydrofluorescein diacetate). Results: EOD inhibited the proliferation of HT-29 cells for 24 hours by $78.6%{\pm}8.1%$ at $50{\mu}g/mL$, $74.4%{\pm}4.6%$ at $100{\mu}g/mL$, $65.9%{\pm}5.2%$ at $200{\mu}g/mL$, $51.4%{\pm}6.2%$ at $300{\mu}g/mL$, and by $41.7%{\pm}8.9%$ at $400{\mu}g/mL$, and treatment for 72 hours reduced the proliferation at the corresponding concentrations by $43.3%{\pm}8.8%$, $24.3{\pm}5.1mV$, $13.5{\pm}3.2mV$, $6.5{\pm}2.3mV$, and by $2.6{\pm}2.3mV$. EOD increased the number of cells in the sub-G1 peak in a dose-dependent manner. The mitochondrial membrane depolarization was elevated by EOD. Also, caspase activities were dose-dependently elevated in the presence of EOD, and these activities were repressed by a pan-caspase inhibitor (zVAD-fmk). The ROS generation was significantly increased by EOD and N-acetyl-L-cysteine (NAC; a ROS scavenger) remarkably abolished EOD-induced cell death. In addition, a combination of sub-optimal doses of EOD and chemotherapeutic agents noticeably suppressed the growth of HT-29 cancer cells. Conclusion: These results indicate that EOD might be an effective chemotherapeutic for the treatment of human colorectal cancer.
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