Objective:To study the inhibitory effects on colorectal cancer(CRC)and the underlying mechanism of the petroleum ether extract of Aegiceras corniculatum leaves(PACL).Materials and Methods:The effect of PACL on the pro...Objective:To study the inhibitory effects on colorectal cancer(CRC)and the underlying mechanism of the petroleum ether extract of Aegiceras corniculatum leaves(PACL).Materials and Methods:The effect of PACL on the proliferation of CRC cell lines DLD-1,HT-29,and SW480was measured by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium assay and colony-forming assay.And then,a wound-healing assay was used to measure the migration ability of three CRC cells.The cell cycle and apoptosis of three CRC cells were measured by PI/RNase staining and annexin V-FITC/double staining,respectively,and the intrinsic apoptosis pathway was studied by the Western blot.The anti-CRC effect of PACL in vivo was evaluated by HT-29 xenograft zebrafish embryos.Results:PACL inhibited cell viability and proliferation in DLD-1,HT-29,and SW480 cells in a dose-and time-dependent manner.PACL can inhibit cell migration in DLD-1and SW480 cells but not in the less mobile phenotype cell HT-29.PACL treatment resulted in cell cycle arrest of DLD-1 and HT-29 cells in the G2/M phase.Moreover,PACL can induce apoptosis in all three CRC cells,which may be achieved by regulating the intrinsic apoptosis pathway mediated by mitochondria and the endoplasmic reticulum.Interestingly,the tumor sizes were decreased after treatment with PACL and PACL combined with fluorouracil in HT-29 xenograft zebrafish embryos.Conclusions:These findings suggested that PACL may exert its anti-CRC effect by inducing apoptosis through the intrinsic apoptosis pathway and show a significant anti-CRC effect in vitro and in vivo,so it might be potentially developed as an anti-CRC agent.展开更多
Since March 28,2022,Shanghai has become the new COVID-19 epicenter in China,with more than 500,000 COVID-19 cases until May 5th,2022,of which more than 90%are asymptomatic.More than 12,000 children in Shanghai were in...Since March 28,2022,Shanghai has become the new COVID-19 epicenter in China,with more than 500,000 COVID-19 cases until May 5th,2022,of which more than 90%are asymptomatic.More than 12,000 children in Shanghai were infected with COVID-19 during the current Omicron wave,which was characterized by family clustering.Because an increasing number of symptomatic children are required to be hospitalized,four major pediatric medical centers in Shanghai and other general hospitals were designated for admitting symptomatic pediatric COVID-19 cases in the early April.There were approximately 3,500 pediatric cases admitted from April 1st until May 5th,2022.展开更多
基金the Guangxi Science and Technology Plan Project(No.GKH15104001-11,No.GKAD19110155,No.2018AD09008,19-050-39)the Guangxi Innovation Driven Development Project(No.GUIKEAA18242040)。
文摘Objective:To study the inhibitory effects on colorectal cancer(CRC)and the underlying mechanism of the petroleum ether extract of Aegiceras corniculatum leaves(PACL).Materials and Methods:The effect of PACL on the proliferation of CRC cell lines DLD-1,HT-29,and SW480was measured by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium assay and colony-forming assay.And then,a wound-healing assay was used to measure the migration ability of three CRC cells.The cell cycle and apoptosis of three CRC cells were measured by PI/RNase staining and annexin V-FITC/double staining,respectively,and the intrinsic apoptosis pathway was studied by the Western blot.The anti-CRC effect of PACL in vivo was evaluated by HT-29 xenograft zebrafish embryos.Results:PACL inhibited cell viability and proliferation in DLD-1,HT-29,and SW480 cells in a dose-and time-dependent manner.PACL can inhibit cell migration in DLD-1and SW480 cells but not in the less mobile phenotype cell HT-29.PACL treatment resulted in cell cycle arrest of DLD-1 and HT-29 cells in the G2/M phase.Moreover,PACL can induce apoptosis in all three CRC cells,which may be achieved by regulating the intrinsic apoptosis pathway mediated by mitochondria and the endoplasmic reticulum.Interestingly,the tumor sizes were decreased after treatment with PACL and PACL combined with fluorouracil in HT-29 xenograft zebrafish embryos.Conclusions:These findings suggested that PACL may exert its anti-CRC effect by inducing apoptosis through the intrinsic apoptosis pathway and show a significant anti-CRC effect in vitro and in vivo,so it might be potentially developed as an anti-CRC agent.
基金study was funded by the National Key Research and Development Program of China(2021YFC2701800,2021YFC2701801)Shanghai Municipal Science and Technology Major Project(ZD2021CY001)。
文摘Since March 28,2022,Shanghai has become the new COVID-19 epicenter in China,with more than 500,000 COVID-19 cases until May 5th,2022,of which more than 90%are asymptomatic.More than 12,000 children in Shanghai were infected with COVID-19 during the current Omicron wave,which was characterized by family clustering.Because an increasing number of symptomatic children are required to be hospitalized,four major pediatric medical centers in Shanghai and other general hospitals were designated for admitting symptomatic pediatric COVID-19 cases in the early April.There were approximately 3,500 pediatric cases admitted from April 1st until May 5th,2022.
