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- 저자 : Kuo-Shyang (검색결과 3 건)
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Lipopeptides Extract from Bacillus Amyloliquefaciens Induce Human Oral Squamous Cancer Cell Death
Kuo, Chen-Hui,Lin, Yun-Wei,Chen, Ruey-Shyang Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.1
A lipopeptide extract of Bacillus amyloliquefaciens BACY1 (BLE) was found to induce cell death in human oral squamous cell carcinoma (OSCC) cell lines, SCC4 and SCC25, in this study. The results of MTT assay showed that BLE inhibited OSCC cell proliferation in a dose-dependent manner. BLE was also effective in increasing the sub-G1 phases. Furthermore, when membrane damage in SCC4 cells treated with BLE was monitored by LDH assay, release of LDH was significantly increased. The protein and mRNA levels of pro-apoptotic Bax, and caspase-3 were up-regulated by BLE. Taken together, these results suggest that BLE induces apoptosis and then inhibits the cell proliferation of human OSCC cells.
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Mei-Chen Lo,Jia-Yin Chen,Yung-Ting Kuo,Wei-Lu Chen,Horng-Mo Lee,Shyang-Guang Wang 대한약학회 2019 Archives of Pharmacal Research Vol.42 No.8
Caloric restriction activates sirtuin 1 (SIRT1)and induces a variety of metabolic effects that are beneficialfor preventing age-related disease. The present studyscreened a commercially available used drug library todevelop small molecule activators of SIRT1 as therapeuticsfor treatment of metabolic disorders. Using an in vitrofluorescence assay, the cancer therapeutic camptothecinincreased SIRT1 enzymatic activity by 5.5-fold, indicatingit to be a potent SIRT1 activator. Camptothecin also elevatedthe nicotinamide adenine dinucleotide (NAD)?/NADH ratio and increased SIRT1 protein levels in differentiatedC2C12 myogenic cells. Treatment of C2C12 myotubeswith camptothecin increased phosphorylation ofAMP-dependent kinase (AMPK) and acetyl-coenzyme Acarboxylase, caused nuclear translocation and deacetylationof forkhead box O1 (FoxO1), increased transcriptionand protein expression of adipose triglyceride lipase(ATGL), decreased the amount of intracellular oil droplets,and significantly increased b-oxidation of fatty acids. These in vitro data were confirmed in vivo as camptothecintreatment of C57BL/6J mice reduced fat and plasmatriglyceride levels. All of the above camptothecin-inducedalterations were attenuated by the SIRT1-specific inhibitornicotinamide and/or 6-[4-(2-piperidin-1-ylethoxy) phenyl]-3-pyridin-4-ylpyrazolo [1,5-a]pyrimidin (compound C). Thus, camptothecin activation of SIRT1 promotes lipidcatabolism through AMPK/FoxO1/ATGL signaling.
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Tsai, Huang-Wen,Hsieh, Fu-Chien,Chang, Chih-Chun,Su, Ming-Jang,Chu, Fang-Yeh,Chen, Kuo-Hsin,Jeng, Kuo-Shyang,Chen, Yun Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.17
Background: Orthotopic organ transplantation, a treatment option for irreversible organ dysfunction according to organ failure, severe damaged organ or malignancy in situ, was usually accompanied with massive blood loss thus transfusion was required. We aimed to evaluate the adverse impact of blood transfusion on solid organ transplantation. Materials and Methods: From January, 2009 to December, 2014, patients who received orthotopic organ transplantation at Far Eastern Memorial Hospital medical center were enrolled. Clinical data regarding anemia status and red blood cell (RBC) transfusion before, during and after operation, as well as patient outcomes were collected for further univariate analysis. Results: A total of 105 patients who underwent orthotopic transplantation, including liver, kidney and small intestine were registered. The mean hemoglobin (Hb) level upon admission and before operation were $11.6{\pm}1.8g/dL$ and $11.7{\pm}1.7g/dL$, respectively; and the nadir Hb level post operation and the final Hb level before discharge were $8.3{\pm}1.6g/dL$ and $10.2{\pm}1.6g/dL$, respectively. The median units (interquartile range) of RBC transfusion in pre-operative, peri-operative and post-operative periods were 0 (0-0), 2 (0-12), and 2 (0-6) units, respectively. Furthermore, the median (interquartile range) length of hospital stay (LHS) from admission to discharge and from operation to discharge were 28 (17-44) and 24 (16-37) days, respectively. Both peri-operative and post-operative RBC transfusion were associated with longer LHS from admission to discharge and from operation to discharge. Furthermore, it increased the risk of post-operative septicemia. While peri-operative RBC transfusion elevated the risk of acute graft rejection in patients who received orthotopic transplantation. Conclusions: Worse outcome could be anticipated in those who had received massive RBC transfusion in transplantation operation. Hence, peri-operative RBC transfusion should be avoided as much as possible.
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