目的研究骨成形蛋白-激活素膜结合阻断因子(BMP and activin membrane-bound inhibitor,BAMBI)与卵巢癌耐药性之间的关系。方法运用GEPIA在线工具分析BAMBI在正常卵巢组织与卵巢癌组织中的表达差异;基于GEO数据库分析BAMBI在顺铂敏感性...目的研究骨成形蛋白-激活素膜结合阻断因子(BMP and activin membrane-bound inhibitor,BAMBI)与卵巢癌耐药性之间的关系。方法运用GEPIA在线工具分析BAMBI在正常卵巢组织与卵巢癌组织中的表达差异;基于GEO数据库分析BAMBI在顺铂敏感性与顺铂耐药性的卵巢癌细胞株中的表达差异;CTRP数据库进行卵巢癌细胞BAMBI表达量与化疗药物敏感性相关性分析;综合运用基因互做分析、基因通路富集、基因相关性分析、文本挖掘、miRNA-mRNA相互作用分析等生物信息学方法进一步证明BAMBI调节卵巢癌耐药性及探索其内在机制。结果BAMBI在卵巢癌组织的表达显著低于正常卵巢,同时对顺铂耐药的卵巢癌细胞系中BAMBI表达量也显著低于对顺铂敏感的卵巢癌细胞系,与BAMBI高度关联性的基因大部分与卵巢癌耐药性有关;基因通路富集对与BAMBI相关联的基因分析发现,TGF-β(转化生长因子-β)信号通路、Hippo信号通路、细胞因子及其受体等通路的富集程度最高;TSPAN5与BAMBI高度相关,并且在卵巢癌和顺铂耐药的细胞株A2780中低表达;文本挖掘显示,细胞增殖、生长、凋亡过程以及信号转导等生物过程同时与BAMBI蛋白、卵巢癌、肿瘤耐药性具有显著的关联性;miRNA-mRNA互作分析发现,靶向于BAMBI的15个miRNA皆与卵巢癌耐药性或其他肿瘤耐药性相关。结论低表达BAMBI介导了卵巢癌的耐药性的发生。展开更多
BAMB I(bone morphogenetic prote in and activin m embrane-bound inh ib itor,BAMB I)是TGF-β信号转导通路的伪受体,与TGF-βⅠ型受体结构相似,但不具有同样的活性。它可以竞争性地与Ⅱ型受体结合,诱导配体———TGF-β超家族成员(T...BAMB I(bone morphogenetic prote in and activin m embrane-bound inh ib itor,BAMB I)是TGF-β信号转导通路的伪受体,与TGF-βⅠ型受体结构相似,但不具有同样的活性。它可以竞争性地与Ⅱ型受体结合,诱导配体———TGF-β超家族成员(TGF-β、骨形态发生蛋白、激活素等)形成配体受体复合物,使胞质区的SMAD蛋白无法被磷酸化而激活,从而阻断TGF-β家族的信号转导,影响一系列下游基因的表达。BAMB I因其结构上的特点而广泛参与TGF-β信号转导的调控,并由此在各组织器官的肿瘤与疾病的发生及演进中起重要的作用。展开更多
目的研究BAMBI基因在小鼠不同脂肪组织发育过程中的表达规律。方法利用RT-q PCR及Western blot技术检测BAMBI基因在小鼠不同类型脂肪组织、不同发育阶段(胚胎第18天、出生第0天、第21天、第8周和第6个月)及原代前体脂肪细胞分化过程中(...目的研究BAMBI基因在小鼠不同脂肪组织发育过程中的表达规律。方法利用RT-q PCR及Western blot技术检测BAMBI基因在小鼠不同类型脂肪组织、不同发育阶段(胚胎第18天、出生第0天、第21天、第8周和第6个月)及原代前体脂肪细胞分化过程中(分化第0、3、7、11天)的差异表达情况。结果随着脂肪组织的发育,BAMBI m RNA及蛋白的表达量逐渐降低;在发育的同一时间段,BAMBI m RNA在内脏白色脂肪组织较皮下白色脂肪组织表达量高,在棕色脂肪组织中表达量最低;在小鼠前体脂肪细胞诱导分化过程中,BAMBI m RNA表达量呈时间依赖性降低。结论提示BAMBI的差异表达规律与脂肪组织类型、发育阶段以及脂肪细胞分化程度密切相关,其在脂肪组织发育过程中起着重要的作用。展开更多
Objective:To investigate the effect of Kangquan Recipe(康泉方,KQR)on bone morphogenetic protein and activin membrane-bound inhibitor(BAMBI)expression and its mechanism in rats with benign prostatic hyperplasia(BPH).Me...Objective:To investigate the effect of Kangquan Recipe(康泉方,KQR)on bone morphogenetic protein and activin membrane-bound inhibitor(BAMBI)expression and its mechanism in rats with benign prostatic hyperplasia(BPH).Methods:Forty-eight male Sprague-Dawley rats were divided into 6 groups using a random number table,with 8 in each group:the normal group(normal saline 10 m L/kg),the model group(normal saline 10 m L/kg),the finasteride group(0.5 mg/kg),the low-dose KQR group(3.5 g/kg),the middle-dose KQR group(7 g/kg),and the high-dose KQR group(14 g/kg).The 40 rats were subcutaneously injected with testosterone propionate after castration for 30 days to establish the BPH rat model except for those in the normal group.At the same time,the corresponding drugs were administered by gavage for 30 consecutive days.The effects of different doses of KQR on the protate wet weight,prostate volume and prostate index(PI)were observed.The changes in histopathology were monitored with hematoxylin-eosin staining.BAMBI protein and m RNA expression contents were determined by Western blot and quantitative real-time polymerase chain reaction,respectively.Results:All doses of KQR could decrease prostatic epithelial tissue proliferation.Compared to the model group,the high and middle-dose KQR significantly reduced prostate wet weight,prostate volume and PI;increased BAMBI protein expression in the hypothalamus,pituitary and prostate tissue;all doses of KQR up-regulated BAMBI m RNA expression in serum,prostatic fluid and prostate tissue(P<0.05 or P<0.01).Conclusions:KQR could inhibit the proliferation of rat prostatic tissue,promote BAMBI protein expression in the hypothalamic-pituitary-prostate of rats with BPH;and increase BAMBI m RNA expression in the blood,prostatic fluid and prostate tissue of rats with BPH,showing a dose-effect relationship.KQR can be used as a potential drug for the treatment of BPH.展开更多
文摘目的研究骨成形蛋白-激活素膜结合阻断因子(BMP and activin membrane-bound inhibitor,BAMBI)与卵巢癌耐药性之间的关系。方法运用GEPIA在线工具分析BAMBI在正常卵巢组织与卵巢癌组织中的表达差异;基于GEO数据库分析BAMBI在顺铂敏感性与顺铂耐药性的卵巢癌细胞株中的表达差异;CTRP数据库进行卵巢癌细胞BAMBI表达量与化疗药物敏感性相关性分析;综合运用基因互做分析、基因通路富集、基因相关性分析、文本挖掘、miRNA-mRNA相互作用分析等生物信息学方法进一步证明BAMBI调节卵巢癌耐药性及探索其内在机制。结果BAMBI在卵巢癌组织的表达显著低于正常卵巢,同时对顺铂耐药的卵巢癌细胞系中BAMBI表达量也显著低于对顺铂敏感的卵巢癌细胞系,与BAMBI高度关联性的基因大部分与卵巢癌耐药性有关;基因通路富集对与BAMBI相关联的基因分析发现,TGF-β(转化生长因子-β)信号通路、Hippo信号通路、细胞因子及其受体等通路的富集程度最高;TSPAN5与BAMBI高度相关,并且在卵巢癌和顺铂耐药的细胞株A2780中低表达;文本挖掘显示,细胞增殖、生长、凋亡过程以及信号转导等生物过程同时与BAMBI蛋白、卵巢癌、肿瘤耐药性具有显著的关联性;miRNA-mRNA互作分析发现,靶向于BAMBI的15个miRNA皆与卵巢癌耐药性或其他肿瘤耐药性相关。结论低表达BAMBI介导了卵巢癌的耐药性的发生。
文摘BAMB I(bone morphogenetic prote in and activin m embrane-bound inh ib itor,BAMB I)是TGF-β信号转导通路的伪受体,与TGF-βⅠ型受体结构相似,但不具有同样的活性。它可以竞争性地与Ⅱ型受体结合,诱导配体———TGF-β超家族成员(TGF-β、骨形态发生蛋白、激活素等)形成配体受体复合物,使胞质区的SMAD蛋白无法被磷酸化而激活,从而阻断TGF-β家族的信号转导,影响一系列下游基因的表达。BAMB I因其结构上的特点而广泛参与TGF-β信号转导的调控,并由此在各组织器官的肿瘤与疾病的发生及演进中起重要的作用。
文摘目的研究BAMBI基因在小鼠不同脂肪组织发育过程中的表达规律。方法利用RT-q PCR及Western blot技术检测BAMBI基因在小鼠不同类型脂肪组织、不同发育阶段(胚胎第18天、出生第0天、第21天、第8周和第6个月)及原代前体脂肪细胞分化过程中(分化第0、3、7、11天)的差异表达情况。结果随着脂肪组织的发育,BAMBI m RNA及蛋白的表达量逐渐降低;在发育的同一时间段,BAMBI m RNA在内脏白色脂肪组织较皮下白色脂肪组织表达量高,在棕色脂肪组织中表达量最低;在小鼠前体脂肪细胞诱导分化过程中,BAMBI m RNA表达量呈时间依赖性降低。结论提示BAMBI的差异表达规律与脂肪组织类型、发育阶段以及脂肪细胞分化程度密切相关,其在脂肪组织发育过程中起着重要的作用。
基金Supported by the National Natural Science Foundation of China(No.81674041)the Foundation of Science and Technology Department of Xiamen(No.3502Z20164013)the Natural Science Foundation of Fujian Province(No.2018J01395)。
文摘Objective:To investigate the effect of Kangquan Recipe(康泉方,KQR)on bone morphogenetic protein and activin membrane-bound inhibitor(BAMBI)expression and its mechanism in rats with benign prostatic hyperplasia(BPH).Methods:Forty-eight male Sprague-Dawley rats were divided into 6 groups using a random number table,with 8 in each group:the normal group(normal saline 10 m L/kg),the model group(normal saline 10 m L/kg),the finasteride group(0.5 mg/kg),the low-dose KQR group(3.5 g/kg),the middle-dose KQR group(7 g/kg),and the high-dose KQR group(14 g/kg).The 40 rats were subcutaneously injected with testosterone propionate after castration for 30 days to establish the BPH rat model except for those in the normal group.At the same time,the corresponding drugs were administered by gavage for 30 consecutive days.The effects of different doses of KQR on the protate wet weight,prostate volume and prostate index(PI)were observed.The changes in histopathology were monitored with hematoxylin-eosin staining.BAMBI protein and m RNA expression contents were determined by Western blot and quantitative real-time polymerase chain reaction,respectively.Results:All doses of KQR could decrease prostatic epithelial tissue proliferation.Compared to the model group,the high and middle-dose KQR significantly reduced prostate wet weight,prostate volume and PI;increased BAMBI protein expression in the hypothalamus,pituitary and prostate tissue;all doses of KQR up-regulated BAMBI m RNA expression in serum,prostatic fluid and prostate tissue(P<0.05 or P<0.01).Conclusions:KQR could inhibit the proliferation of rat prostatic tissue,promote BAMBI protein expression in the hypothalamic-pituitary-prostate of rats with BPH;and increase BAMBI m RNA expression in the blood,prostatic fluid and prostate tissue of rats with BPH,showing a dose-effect relationship.KQR can be used as a potential drug for the treatment of BPH.
