Spurred by better understanding of disease biology,improvements in molecular diagnostics,and the development of targeted therapies,the treatment of acute myeloid leukemia(AML)has undergone significant evolution in rec...Spurred by better understanding of disease biology,improvements in molecular diagnostics,and the development of targeted therapies,the treatment of acute myeloid leukemia(AML)has undergone significant evolution in recent years.Arguably,the most exciting shift has come from the success of treatment with the B-cell lymphoma-2 inhibitor venetoclax.When given in combination with a hypomethylating agent or low dose cytarabine,venetoclax demonstrates high response rates,some of which are durable.In spite of this,relapses after venetoclax treatment are common,and much interest exists in elucidating the mechanisms of resistance to the drug.Alterations in leukemic stem cell metabolism have been identified as a possible escape route,and clinical trials focusing on targeting metabolism in AML are ongoing.This review article highlights current research regarding venetoclax treatment and resistance in AML with a focus on cellular metabolism.展开更多
目的探讨脂多糖(LPS)作用于人牙髓细胞后,B细胞淋巴瘤-2(Bc1-2)蛋白、Bcl-2相关X蛋白(Bax)在正常人牙髓和炎症牙髓中的表达,探讨其在牙髓炎症过程中的作用机制。方法在体外用不同质量浓度LPS刺激人牙髓细胞后,采用免疫细胞化学染色方法...目的探讨脂多糖(LPS)作用于人牙髓细胞后,B细胞淋巴瘤-2(Bc1-2)蛋白、Bcl-2相关X蛋白(Bax)在正常人牙髓和炎症牙髓中的表达,探讨其在牙髓炎症过程中的作用机制。方法在体外用不同质量浓度LPS刺激人牙髓细胞后,采用免疫细胞化学染色方法在不同的时间点检测Bcl-2、Bax的表达,用图像分析系统Simple PCI version 5.1分析。结果正常人牙髓细胞中Bcl-2、Bax表达量不高,而在牙髓炎症过程中两者均增强,但是随着LPS质量浓度的增加,Bcl-2的表达量开始下降,而Bax的表达则持续增强。结论内毒素能使人牙髓细胞膜上的Bcl-2、Bax表达增强,但Bax的表达强于Bcl-2,内毒素可能通过两者介导的信号传导途径引起细胞凋亡。展开更多
文摘Spurred by better understanding of disease biology,improvements in molecular diagnostics,and the development of targeted therapies,the treatment of acute myeloid leukemia(AML)has undergone significant evolution in recent years.Arguably,the most exciting shift has come from the success of treatment with the B-cell lymphoma-2 inhibitor venetoclax.When given in combination with a hypomethylating agent or low dose cytarabine,venetoclax demonstrates high response rates,some of which are durable.In spite of this,relapses after venetoclax treatment are common,and much interest exists in elucidating the mechanisms of resistance to the drug.Alterations in leukemic stem cell metabolism have been identified as a possible escape route,and clinical trials focusing on targeting metabolism in AML are ongoing.This review article highlights current research regarding venetoclax treatment and resistance in AML with a focus on cellular metabolism.
文摘目的探讨脂多糖(LPS)作用于人牙髓细胞后,B细胞淋巴瘤-2(Bc1-2)蛋白、Bcl-2相关X蛋白(Bax)在正常人牙髓和炎症牙髓中的表达,探讨其在牙髓炎症过程中的作用机制。方法在体外用不同质量浓度LPS刺激人牙髓细胞后,采用免疫细胞化学染色方法在不同的时间点检测Bcl-2、Bax的表达,用图像分析系统Simple PCI version 5.1分析。结果正常人牙髓细胞中Bcl-2、Bax表达量不高,而在牙髓炎症过程中两者均增强,但是随着LPS质量浓度的增加,Bcl-2的表达量开始下降,而Bax的表达则持续增强。结论内毒素能使人牙髓细胞膜上的Bcl-2、Bax表达增强,但Bax的表达强于Bcl-2,内毒素可能通过两者介导的信号传导途径引起细胞凋亡。