子痫前期是一种妊娠特异性疾病,是孕产妇和围生期死亡的主要原因。至今尚无任何一种假说可以彻底地解释子痫前期的病理变化,目前比较公认的特征是早期胎盘滋养细胞浸润和螺旋动脉重铸减少。ACVR2A(activin A receptor type 2A)是转化生...子痫前期是一种妊娠特异性疾病,是孕产妇和围生期死亡的主要原因。至今尚无任何一种假说可以彻底地解释子痫前期的病理变化,目前比较公认的特征是早期胎盘滋养细胞浸润和螺旋动脉重铸减少。ACVR2A(activin A receptor type 2A)是转化生长因子β(TGF-β)受体家族的成员,被认为是生殖功能的重要调节因子,尤其是在蜕膜化、滋养细胞浸润和胎盘形成过程中起重要作用。近些年的研究表明激活素A及其受体在子痫前期的发生、发展过程中有重要的调控作用。综述ACVR2A与子痫前期的关系,旨在为子痫前期的发病机制、早期诊断及治疗提供新的理论依据。展开更多
Activin A receptor,type II(Acvr2)is a member of the transforming growth factor beta receptor family and can function as a negative regulator of skeletal muscle mass.Acvr2 plays an important role in regulating muscle d...Activin A receptor,type II(Acvr2)is a member of the transforming growth factor beta receptor family and can function as a negative regulator of skeletal muscle mass.Acvr2 plays an important role in regulating muscle development that can inhibit skeletal muscle growth in mice.However,there is very little research reported on the function of acvr2 in muscle development of teleost.In this study,we analyzed the effect of acvr2aa and acvr2ba on muscle development in zebrafish.Growth rates of WT and acvr2a^(-/-b-/-)were measured from juvenile stage to adult stage.In addition,effects of acvr2 on skeletal muscle were tested in histological,protein and molecular levels.As a result,acvr2a^(-/-b-/-)exhibited a wider body trunk than WT and showed a significant increase in body weight and width from two months old.Histological analysis of skeletal muscle indicated that the size of muscle fiber in acvr2a^(-/-b-/-)(female:1809±123μm^(2);male:2261±130μm^(2))was larger than that in WT(709.8±49μm^(2);815±53μm^(2)).In addition,western blot of fast MyLc protein showed the protein synthesis of acvr2a^(-/-b-/-)are increased.Besides,Histological analysis of heart showed the ventricle area is aslo increased in acvr2a^(-/-b-/-).Our results demonstrated acvr2 attends the development of muscle fiber and will cause muscle hypertrophy when they were knocked out in zebrafish.In conclusion,acvr2 in zebrafish can control the development of muscle fibers during posthatch growth.展开更多
文摘子痫前期是一种妊娠特异性疾病,是孕产妇和围生期死亡的主要原因。至今尚无任何一种假说可以彻底地解释子痫前期的病理变化,目前比较公认的特征是早期胎盘滋养细胞浸润和螺旋动脉重铸减少。ACVR2A(activin A receptor type 2A)是转化生长因子β(TGF-β)受体家族的成员,被认为是生殖功能的重要调节因子,尤其是在蜕膜化、滋养细胞浸润和胎盘形成过程中起重要作用。近些年的研究表明激活素A及其受体在子痫前期的发生、发展过程中有重要的调控作用。综述ACVR2A与子痫前期的关系,旨在为子痫前期的发病机制、早期诊断及治疗提供新的理论依据。
基金the National Natural Science Foundation of China[31872546].
文摘Activin A receptor,type II(Acvr2)is a member of the transforming growth factor beta receptor family and can function as a negative regulator of skeletal muscle mass.Acvr2 plays an important role in regulating muscle development that can inhibit skeletal muscle growth in mice.However,there is very little research reported on the function of acvr2 in muscle development of teleost.In this study,we analyzed the effect of acvr2aa and acvr2ba on muscle development in zebrafish.Growth rates of WT and acvr2a^(-/-b-/-)were measured from juvenile stage to adult stage.In addition,effects of acvr2 on skeletal muscle were tested in histological,protein and molecular levels.As a result,acvr2a^(-/-b-/-)exhibited a wider body trunk than WT and showed a significant increase in body weight and width from two months old.Histological analysis of skeletal muscle indicated that the size of muscle fiber in acvr2a^(-/-b-/-)(female:1809±123μm^(2);male:2261±130μm^(2))was larger than that in WT(709.8±49μm^(2);815±53μm^(2)).In addition,western blot of fast MyLc protein showed the protein synthesis of acvr2a^(-/-b-/-)are increased.Besides,Histological analysis of heart showed the ventricle area is aslo increased in acvr2a^(-/-b-/-).Our results demonstrated acvr2 attends the development of muscle fiber and will cause muscle hypertrophy when they were knocked out in zebrafish.In conclusion,acvr2 in zebrafish can control the development of muscle fibers during posthatch growth.
