Background:Growth differentiation factor 11(GDF11),a transforming growth factor-beta superfamily member,is a crucial protein involved in many differentiation processes in embryogenesis and morphogenesis,and it has bee...Background:Growth differentiation factor 11(GDF11),a transforming growth factor-beta superfamily member,is a crucial protein involved in many differentiation processes in embryogenesis and morphogenesis,and it has been extensively characterized due to its capacity to target poorly differentiated cells,including transformed or cancer cells.Aim:In the present work,we aimed to describe the effects on migration,proliferation,and metabolism in the T-cell acute lymphoblastic leukemia-derived cell line Jurkat.Methods:Based on previous evidence,we analyzed metabolic changes exerted by GDF11 and its relationship with the aggressive phenotype.Results:We found a profound impact on mitochondrial metabolism and reactive oxygen species content;these were related to a decrement in the expression of the transcription factor forkhead-box-protein P3(FOXP3),which is highly involved in aggressiveness in leukemia cells;this was verified by a decrement in invasion capacity exhibited by the Jurkat cells under the GDF11 treatment.Conclusion:The results position the GDF11 response as a good alternative in the search for new therapeutic options for these diseases.展开更多
目的检测哮喘小鼠与对照小鼠肺组织中Th1、Th2、Th17及Foxp3+Treg细胞占CD4+T细胞百分比,探讨哮喘小鼠中Foxp3+Treg/Th17比值变化及其在哮喘中的意义。方法将6周清洁级Balb/c小鼠随机分为对照组(control)和哮喘组(OVA),哮喘组给予OVA致...目的检测哮喘小鼠与对照小鼠肺组织中Th1、Th2、Th17及Foxp3+Treg细胞占CD4+T细胞百分比,探讨哮喘小鼠中Foxp3+Treg/Th17比值变化及其在哮喘中的意义。方法将6周清洁级Balb/c小鼠随机分为对照组(control)和哮喘组(OVA),哮喘组给予OVA致敏和激发,建立哮喘小鼠模型,对照组用PBS代替OVA。最后1次激发后24 h内检测支气管肺泡灌洗液(BALF)中细胞总数及细胞分类计数;HE染色制作肺组织病理切片,光镜下观察病理变化;小鼠肺功能仪检测小鼠气道高反应性;流式细胞术检测小鼠肺组织中Th1、Th2、Th17、Foxp3+Treg细胞占CD4+T细胞百分比。结果哮喘组BALF细胞总数、淋巴细胞、嗜酸性粒细胞及中性粒细胞比例显著高于对照组,肺部炎症反应与气道高反应显著高于对照组。哮喘组小鼠肺组织中Th2、Th17细胞百分比明显高于对照组[分别为(0.83±0.08)%vs(0.50±0.03)%;(1.74±0.17)%vs(1.07±0.07)%,P<0.01];而Th1、Foxp3+Treg细胞百分比显著低于对照组[分别为(1.39±0.14)%vs(2.56±0.18)%;(4.87±0.35)%vs(7.67±0.44)%,P<0.001];哮喘组Th1/Th2及Foxp3+Treg/Th17明显低于对照组(分别为1.66±0.17 vs 5.19±0.56;3.02±0.49 vs 7.38±0.71,P<0.001)。结论除Th1/Th2失衡外,Foxp3+Treg/Th17失衡在哮喘发病中亦有重要作用。展开更多
基金funded by a grant from the Consejo Nacional de humanidades Ciencia y Tecnología(Conahcyt).Fronteras de la Ciencia 1320,Infra-2017280788Universidad Autónoma Metropolitana-Iztapalapa.
文摘Background:Growth differentiation factor 11(GDF11),a transforming growth factor-beta superfamily member,is a crucial protein involved in many differentiation processes in embryogenesis and morphogenesis,and it has been extensively characterized due to its capacity to target poorly differentiated cells,including transformed or cancer cells.Aim:In the present work,we aimed to describe the effects on migration,proliferation,and metabolism in the T-cell acute lymphoblastic leukemia-derived cell line Jurkat.Methods:Based on previous evidence,we analyzed metabolic changes exerted by GDF11 and its relationship with the aggressive phenotype.Results:We found a profound impact on mitochondrial metabolism and reactive oxygen species content;these were related to a decrement in the expression of the transcription factor forkhead-box-protein P3(FOXP3),which is highly involved in aggressiveness in leukemia cells;this was verified by a decrement in invasion capacity exhibited by the Jurkat cells under the GDF11 treatment.Conclusion:The results position the GDF11 response as a good alternative in the search for new therapeutic options for these diseases.
文摘目的检测哮喘小鼠与对照小鼠肺组织中Th1、Th2、Th17及Foxp3+Treg细胞占CD4+T细胞百分比,探讨哮喘小鼠中Foxp3+Treg/Th17比值变化及其在哮喘中的意义。方法将6周清洁级Balb/c小鼠随机分为对照组(control)和哮喘组(OVA),哮喘组给予OVA致敏和激发,建立哮喘小鼠模型,对照组用PBS代替OVA。最后1次激发后24 h内检测支气管肺泡灌洗液(BALF)中细胞总数及细胞分类计数;HE染色制作肺组织病理切片,光镜下观察病理变化;小鼠肺功能仪检测小鼠气道高反应性;流式细胞术检测小鼠肺组织中Th1、Th2、Th17、Foxp3+Treg细胞占CD4+T细胞百分比。结果哮喘组BALF细胞总数、淋巴细胞、嗜酸性粒细胞及中性粒细胞比例显著高于对照组,肺部炎症反应与气道高反应显著高于对照组。哮喘组小鼠肺组织中Th2、Th17细胞百分比明显高于对照组[分别为(0.83±0.08)%vs(0.50±0.03)%;(1.74±0.17)%vs(1.07±0.07)%,P<0.01];而Th1、Foxp3+Treg细胞百分比显著低于对照组[分别为(1.39±0.14)%vs(2.56±0.18)%;(4.87±0.35)%vs(7.67±0.44)%,P<0.001];哮喘组Th1/Th2及Foxp3+Treg/Th17明显低于对照组(分别为1.66±0.17 vs 5.19±0.56;3.02±0.49 vs 7.38±0.71,P<0.001)。结论除Th1/Th2失衡外,Foxp3+Treg/Th17失衡在哮喘发病中亦有重要作用。
