Objective:To assess the nuclear factor-erythroid 2-related factor-2(Nrf2)modulatory effect of caffeic acid and protocatechuic acid and determine the anti-tumor activity of these phenolic compounds against Ehrlich asci...Objective:To assess the nuclear factor-erythroid 2-related factor-2(Nrf2)modulatory effect of caffeic acid and protocatechuic acid and determine the anti-tumor activity of these phenolic compounds against Ehrlich ascites carcinoma growth in mice.Methods:Antioxidant activity of protocatechuic acid and caffeic acid was assessed using ferric reducing antioxidant power(FRAP)and 2,2-diphenyl-1-picrylhydrazyl(DPPH).Nrf2 activation potential of phenolic compounds was tested by quantitative realtime polymerase chain reaction,and luciferase complementation reporter assays.In vivo efficacy was tested using the Ehrlich ascites carcinoma model.Results:FRAP and DPPH radical scavenging assays showed that caffeic acid and protocatechuic acid were more potent compared with cinnamic acid and benzoic acid.Luciferase complementation reporter assays identified caffeic acid and protocatechuic acid as the activators of Nrf2.Both caffeic acid and protocatechuic acid upregulated the expression of Nrf2 target genes heme oxygenase-1(HO-1),glutamate-cysteine ligase catalytic subunit(GCLC),and glutamate-cysteine ligase modifier subunit(GCLM)and the activity of NAD(P)H:quinone oxidoreductase 1(NQO1)when tested on HCT-116 cells using a cell-based assay system at 9 h.In addition,intraperitoneal administration of caffeic acid and protocatechuic acid to Ehrlich ascites carcinoma bearing mice suppressed tumor growth and angiogenesis.Conclusions:Caffeic acid and protocatechuic acid can modulate Nrf2 and inhibit Ehrlich ascites carcinoma cells.展开更多
Aim:This study was conducted to assess the in vivo and in vitro anti-tumor effects of diallyl disulfi de(DADS)against Ehrlich ascites carcinoma(EAC)and to suggest its probable mechanism of action.Methods:EAC was induc...Aim:This study was conducted to assess the in vivo and in vitro anti-tumor effects of diallyl disulfi de(DADS)against Ehrlich ascites carcinoma(EAC)and to suggest its probable mechanism of action.Methods:EAC was induced in female mice by intraperitoneal injection of EAC-cells from stock mice.EAC-bearing mice were orally treated with 100 mg/kg body weight for 2 weeks beginning from the 1st day of EAC intraperitoneal transplantation.Cytotoxicity effects of DADS against EAC-cells in vitro were investigated at different concentrations(0,6.25,12.5,25,50,and 100μg/mL)of DADS using trypan blue exclusion assay.Results:Data from this study exhibited a signifi cant decrease in EAC-aliquot volume as well as total and alive EAC-cell number and a marked increase in dead EAC-cell number and percent in EAC-bearing mice treated with DADS as compared with EAC-bearing control.These changes were consistent with increased number of cells which exhibited phenotypic apoptotic signs marked by a decrease in the expression of anti-apoptotic protein Bcl-2,an increase of pro-apoptotic and cell cycle arrest mediator p53 and an elevation of DNA fragmenting indicator terminal deoxynucleotidyl transferase in EAC-bearing mice treated with DADS.In addition,the tumor marker sialic acid level was markedly decreased in plasma and Ehrlich ascites in EAC-bearing mice treated with DADS.In vitro,DADS also produced anti-proliferative and anti-tumor cytotoxic potentials against EAC.Conclusion:DADS may have anti-cancer effects which may be mediated via modulation of apoptosis and cell cycle arrest.展开更多
Objective: To evaluate in-vitro antioxidant, anti-inflammatory and antitumor abilities against human breast adenocarcinoma(MCF7) and human prostate cancer(PC3) as well as the suppressor effect of bacterial exopolysacc...Objective: To evaluate in-vitro antioxidant, anti-inflammatory and antitumor abilities against human breast adenocarcinoma(MCF7) and human prostate cancer(PC3) as well as the suppressor effect of bacterial exopolysaccharide(BAEPS) on Ehrlich ascites carcinoma(EAC). Methods: In-vitro antioxidants characters of BAEPS were determined using various methods, while anti-inflammatory activity was estimated against cyclooxygenase(COX-1 and COX-2). In-vitro study, anticancer against MCF7 and PC3 were assessed by the mitochondrial dependent reduction of yellow MTT. In in-vivo study against EAC progression, mice were inoculated with EAC cells and then were orally administered BAEPS at 200 mg/kg after 24 h(equals to 0.10 of determined LD50)/10 d. Results: BAEPS was acidic exopolysaccharide contained uronic acid(12.3%) and sulfate(22.8%) with constitution of glucose, galactose and glucuronic acid in a molar ratio1.6: 1.0: 0.9, respectively, with a molecular mass of 3.76伊104 g/mol. BAEPS appeared potent antioxidant characters as free radical scavenging, oxygen reactive species scavenging and metal chelation, while its reducing power was low. BAEPS showed selective anti-inflammatory activity against COX-2 than COX-1, COX-2 selective. BAEPS exhibited potent and selective effect to breast cell cancer MCF7, the death percentage was 65.20% with IC_(50)=70 μg/m L and IC_(90)=127.40 μg/m L. BAEPS decreased counted viable EAC cells and induced non-viable cells. BAEPS improved all assessed hematological parameters. These improvements were reflected in the increasing median survival time and significant increment(P<0.05) in life span. Conclusions: BAEPS has anti-tumor activity with a good margin of safety. The anti-tumor activity of BAEPS may be due to its content from sulfated groups and uronic acids and they have antioxidant and anti-inflammatory properties.展开更多
Cancer is a pathogenic condition due to abnormal growth of cells,which is one of the leading reasons for the death of majority of the population throughout the world.Pharmacotherapy associated with the majority of the...Cancer is a pathogenic condition due to abnormal growth of cells,which is one of the leading reasons for the death of majority of the population throughout the world.Pharmacotherapy associated with the majority of the adverse effects such as cardiotoxicity,hepatotoxicity,nephrotoxicity that suggests identifying new drug which would be safer than well-established chemotherapy.There is a need to get a promising line for research over various diseases including cancer.Gloriosa superba Linn has a long history of use in folk medicine including wounds,hemorrhoids,kidney problems,and tumors.The present study explores the ethanolic extract of Gloriosa superba Linn as the anti-cancer agent using in vitro MTT assay and in vivo Ehrlich’s ascites carcinoma(EAC)bearing Balb/c mice models.Further,the study reports the IC50 value of the DPPH was 1.21μg/mL,and the IC50 of MTT assay against Hela and MCF7 was found to be 148.50μg/mL and 147.23μg/mL respectively.For,in vivo study,animals were divided into five groups(n=6)experimented for 14 days.The tumor was induced by intraperitoneal transplantation of Ehrlich’s ascites carcinoma cells in Balb/c mice.The normal and control group received normal saline.After 24 hours of Ehrlich’s Ascites Carcinoma transplantation,treatment was started by injecting Cyclophosphamide(50 mg/kg)intraperitoneal whereas Gloriosa superba Linn extract(5 mg/kg&10 mg/kg)was administrated orally.On the 15th day,mice were sacrificed to estimate hematology,biochemical estimation,and histopathology.The extract showed a significant decrease(P<0.001)in body weight in the treatment group compare to the control group further there was amelioration in hematology,biochemical estimation,and histopathology.From the result,it was concluded that the extract has a potent antitumor activity.展开更多
Objective:To study the in vitro cytotoxic activities of methanol extract of Portieria hornemannii(P.hornemannii)and Spyridia fusiformis(S.fusiformis)using Dalton’s lymphoma ascite and Ehrlich ascite carcinoma cell li...Objective:To study the in vitro cytotoxic activities of methanol extract of Portieria hornemannii(P.hornemannii)and Spyridia fusiformis(S.fusiformis)using Dalton’s lymphoma ascite and Ehrlich ascite carcinoma cell lines.Methods:The effect of cytotoxicity of P.hornemannii and S.fusiformis was evaluated with the concentrations(100 to 200μg/mL)and assessed for the antitumour activity vs.the selected cell lines using Trypan blue assay.Results:The methanol extracts of P.hornemannii and S.fusiformis showed potent cytotoxic activity with IC_(50)values of(209.00±0.05)μg/mL and(190.00±0.05)μg/mL against the Dalton’s lymphoma ascite cell line and IC_(50)values of(190.00±0.05)μg/mL and(182.00±0.05)μg/mL against the Ehrlich ascite carcinoma cell line respectively.In vitro cytotoxicity against the tested cancer cell lines showed strong activity by the abnormal activities of algal residue in the normal cells.Conclusions:The methanol solvent residue of red algae(P.hornemannii and S.fusiformis)could be a good candidate.It would be a novel marine resource as a antitumor medicine demonstrated by cytotoxic studies that the above marine algae can be a potential candidate sources as antitumor drugs.展开更多
Objective:To study the anticancer activities of three schiff bases viz.vanillin thiosemicarbazone,benzophenone thiosemicarbazone and acetophenone thiosemicarbazone against Ehrlich ascites carcinoma(EAC)cells in Swiss ...Objective:To study the anticancer activities of three schiff bases viz.vanillin thiosemicarbazone,benzophenone thiosemicarbazone and acetophenone thiosemicarbazone against Ehrlich ascites carcinoma(EAC)cells in Swiss albino mice.Methods:Synthesized compounds have administrated into the intraperitoneal cavity of the EAC inoculated mice at two doses.The anticancer activities have studied by monitoring the parameters such as cell growth inhibition,tumor weight measurement,survival time of EAC bearing mice as well as the changes in depleted hematological parameters due to tumorgenesis.All such data have been compared with those of a known standard drug bleomycin at the dose of 0.3 mg/kg(i.p.).Results:It has been found that these bases enhanced life span,reduced average tumor weight and inhibited tumor cell growth of EAC cell bearing mice remarkably.The results were similar in potency to those obtained with bleomycin.It was also found that the depleted hematological parameters(red blood count,white blood count and haemoglobin content)were found to be restored gradually towards normal within few weeks after ceasing the treatment.Conclusions:The compounds can be primarily considered more or less as potent anticancer agents.展开更多
文摘Objective:To assess the nuclear factor-erythroid 2-related factor-2(Nrf2)modulatory effect of caffeic acid and protocatechuic acid and determine the anti-tumor activity of these phenolic compounds against Ehrlich ascites carcinoma growth in mice.Methods:Antioxidant activity of protocatechuic acid and caffeic acid was assessed using ferric reducing antioxidant power(FRAP)and 2,2-diphenyl-1-picrylhydrazyl(DPPH).Nrf2 activation potential of phenolic compounds was tested by quantitative realtime polymerase chain reaction,and luciferase complementation reporter assays.In vivo efficacy was tested using the Ehrlich ascites carcinoma model.Results:FRAP and DPPH radical scavenging assays showed that caffeic acid and protocatechuic acid were more potent compared with cinnamic acid and benzoic acid.Luciferase complementation reporter assays identified caffeic acid and protocatechuic acid as the activators of Nrf2.Both caffeic acid and protocatechuic acid upregulated the expression of Nrf2 target genes heme oxygenase-1(HO-1),glutamate-cysteine ligase catalytic subunit(GCLC),and glutamate-cysteine ligase modifier subunit(GCLM)and the activity of NAD(P)H:quinone oxidoreductase 1(NQO1)when tested on HCT-116 cells using a cell-based assay system at 9 h.In addition,intraperitoneal administration of caffeic acid and protocatechuic acid to Ehrlich ascites carcinoma bearing mice suppressed tumor growth and angiogenesis.Conclusions:Caffeic acid and protocatechuic acid can modulate Nrf2 and inhibit Ehrlich ascites carcinoma cells.
文摘Aim:This study was conducted to assess the in vivo and in vitro anti-tumor effects of diallyl disulfi de(DADS)against Ehrlich ascites carcinoma(EAC)and to suggest its probable mechanism of action.Methods:EAC was induced in female mice by intraperitoneal injection of EAC-cells from stock mice.EAC-bearing mice were orally treated with 100 mg/kg body weight for 2 weeks beginning from the 1st day of EAC intraperitoneal transplantation.Cytotoxicity effects of DADS against EAC-cells in vitro were investigated at different concentrations(0,6.25,12.5,25,50,and 100μg/mL)of DADS using trypan blue exclusion assay.Results:Data from this study exhibited a signifi cant decrease in EAC-aliquot volume as well as total and alive EAC-cell number and a marked increase in dead EAC-cell number and percent in EAC-bearing mice treated with DADS as compared with EAC-bearing control.These changes were consistent with increased number of cells which exhibited phenotypic apoptotic signs marked by a decrease in the expression of anti-apoptotic protein Bcl-2,an increase of pro-apoptotic and cell cycle arrest mediator p53 and an elevation of DNA fragmenting indicator terminal deoxynucleotidyl transferase in EAC-bearing mice treated with DADS.In addition,the tumor marker sialic acid level was markedly decreased in plasma and Ehrlich ascites in EAC-bearing mice treated with DADS.In vitro,DADS also produced anti-proliferative and anti-tumor cytotoxic potentials against EAC.Conclusion:DADS may have anti-cancer effects which may be mediated via modulation of apoptosis and cell cycle arrest.
基金financially supported from National Research Centre,Egypt,through the Project No.10010103(2013-2016)
文摘Objective: To evaluate in-vitro antioxidant, anti-inflammatory and antitumor abilities against human breast adenocarcinoma(MCF7) and human prostate cancer(PC3) as well as the suppressor effect of bacterial exopolysaccharide(BAEPS) on Ehrlich ascites carcinoma(EAC). Methods: In-vitro antioxidants characters of BAEPS were determined using various methods, while anti-inflammatory activity was estimated against cyclooxygenase(COX-1 and COX-2). In-vitro study, anticancer against MCF7 and PC3 were assessed by the mitochondrial dependent reduction of yellow MTT. In in-vivo study against EAC progression, mice were inoculated with EAC cells and then were orally administered BAEPS at 200 mg/kg after 24 h(equals to 0.10 of determined LD50)/10 d. Results: BAEPS was acidic exopolysaccharide contained uronic acid(12.3%) and sulfate(22.8%) with constitution of glucose, galactose and glucuronic acid in a molar ratio1.6: 1.0: 0.9, respectively, with a molecular mass of 3.76伊104 g/mol. BAEPS appeared potent antioxidant characters as free radical scavenging, oxygen reactive species scavenging and metal chelation, while its reducing power was low. BAEPS showed selective anti-inflammatory activity against COX-2 than COX-1, COX-2 selective. BAEPS exhibited potent and selective effect to breast cell cancer MCF7, the death percentage was 65.20% with IC_(50)=70 μg/m L and IC_(90)=127.40 μg/m L. BAEPS decreased counted viable EAC cells and induced non-viable cells. BAEPS improved all assessed hematological parameters. These improvements were reflected in the increasing median survival time and significant increment(P<0.05) in life span. Conclusions: BAEPS has anti-tumor activity with a good margin of safety. The anti-tumor activity of BAEPS may be due to its content from sulfated groups and uronic acids and they have antioxidant and anti-inflammatory properties.
文摘Cancer is a pathogenic condition due to abnormal growth of cells,which is one of the leading reasons for the death of majority of the population throughout the world.Pharmacotherapy associated with the majority of the adverse effects such as cardiotoxicity,hepatotoxicity,nephrotoxicity that suggests identifying new drug which would be safer than well-established chemotherapy.There is a need to get a promising line for research over various diseases including cancer.Gloriosa superba Linn has a long history of use in folk medicine including wounds,hemorrhoids,kidney problems,and tumors.The present study explores the ethanolic extract of Gloriosa superba Linn as the anti-cancer agent using in vitro MTT assay and in vivo Ehrlich’s ascites carcinoma(EAC)bearing Balb/c mice models.Further,the study reports the IC50 value of the DPPH was 1.21μg/mL,and the IC50 of MTT assay against Hela and MCF7 was found to be 148.50μg/mL and 147.23μg/mL respectively.For,in vivo study,animals were divided into five groups(n=6)experimented for 14 days.The tumor was induced by intraperitoneal transplantation of Ehrlich’s ascites carcinoma cells in Balb/c mice.The normal and control group received normal saline.After 24 hours of Ehrlich’s Ascites Carcinoma transplantation,treatment was started by injecting Cyclophosphamide(50 mg/kg)intraperitoneal whereas Gloriosa superba Linn extract(5 mg/kg&10 mg/kg)was administrated orally.On the 15th day,mice were sacrificed to estimate hematology,biochemical estimation,and histopathology.The extract showed a significant decrease(P<0.001)in body weight in the treatment group compare to the control group further there was amelioration in hematology,biochemical estimation,and histopathology.From the result,it was concluded that the extract has a potent antitumor activity.
基金Supported by University Grants Commission,New Delhi(Grant No.F1-17.1/2011-12/RGNF-SC-TAM-5342/(SA-III/Website)).
文摘Objective:To study the in vitro cytotoxic activities of methanol extract of Portieria hornemannii(P.hornemannii)and Spyridia fusiformis(S.fusiformis)using Dalton’s lymphoma ascite and Ehrlich ascite carcinoma cell lines.Methods:The effect of cytotoxicity of P.hornemannii and S.fusiformis was evaluated with the concentrations(100 to 200μg/mL)and assessed for the antitumour activity vs.the selected cell lines using Trypan blue assay.Results:The methanol extracts of P.hornemannii and S.fusiformis showed potent cytotoxic activity with IC_(50)values of(209.00±0.05)μg/mL and(190.00±0.05)μg/mL against the Dalton’s lymphoma ascite cell line and IC_(50)values of(190.00±0.05)μg/mL and(182.00±0.05)μg/mL against the Ehrlich ascite carcinoma cell line respectively.In vitro cytotoxicity against the tested cancer cell lines showed strong activity by the abnormal activities of algal residue in the normal cells.Conclusions:The methanol solvent residue of red algae(P.hornemannii and S.fusiformis)could be a good candidate.It would be a novel marine resource as a antitumor medicine demonstrated by cytotoxic studies that the above marine algae can be a potential candidate sources as antitumor drugs.
基金Supported by the Ministry of National Science,Information and Communication Technology(NSICT)of People’s Republic of Bangladesh(Grant No.:39.012.002.01.03.015.2011-271(64)dated-04-10-2011).
文摘Objective:To study the anticancer activities of three schiff bases viz.vanillin thiosemicarbazone,benzophenone thiosemicarbazone and acetophenone thiosemicarbazone against Ehrlich ascites carcinoma(EAC)cells in Swiss albino mice.Methods:Synthesized compounds have administrated into the intraperitoneal cavity of the EAC inoculated mice at two doses.The anticancer activities have studied by monitoring the parameters such as cell growth inhibition,tumor weight measurement,survival time of EAC bearing mice as well as the changes in depleted hematological parameters due to tumorgenesis.All such data have been compared with those of a known standard drug bleomycin at the dose of 0.3 mg/kg(i.p.).Results:It has been found that these bases enhanced life span,reduced average tumor weight and inhibited tumor cell growth of EAC cell bearing mice remarkably.The results were similar in potency to those obtained with bleomycin.It was also found that the depleted hematological parameters(red blood count,white blood count and haemoglobin content)were found to be restored gradually towards normal within few weeks after ceasing the treatment.Conclusions:The compounds can be primarily considered more or less as potent anticancer agents.
