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Cell models and drug discovery for mitochondrial diseases 被引量:5
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作者 Shuang-yi HU Qian-qian zhuANG +2 位作者 Yue QIU xu-fen zhu Qing-feng YAN 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2019年第5期449-456,共8页
Mitochondrion is a semi-autonomous organelle,important for cell energy metabolism,apoptosis,the production of reactive oxygen species(ROS),and Ca2+homeostasis.Mitochondrial DNA(mtDNA)mutation is one of the primary fac... Mitochondrion is a semi-autonomous organelle,important for cell energy metabolism,apoptosis,the production of reactive oxygen species(ROS),and Ca2+homeostasis.Mitochondrial DNA(mtDNA)mutation is one of the primary factors in mitochondrial disorders.Though much progress has been made,there remain many difficulties in constructing cell models for mitochondrial diseases.This seriously restricts studies related to targeted drug discovery and the mechanism and therapy for such diseases.Here we summarize the characteristics of patient-specific immortalized lymphoblastoid cells,fibroblastoid cells,cytoplasmic hybrid(cybrid)cell lines,and induced pluripotent stem cells(iPSCs)-derived differentiation cells in the study of mitochondrial disorders,as well as offering discussion of roles and advances of these cell models,particularly in the screening of drugs. 展开更多
关键词 Mitochondrial diseases Mitochondrial DNA Cell model Drug discovery
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Notch信号通路介导血小板源生长因子AA诱导的血管平滑肌细胞增殖和迁移 被引量:6
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作者 王金祥 周芳 +6 位作者 朱光旭 刘菊芬 朱向情 康华莉 庞荣清 黄岚 潘兴华 《中国动脉硬化杂志》 CAS 北大核心 2016年第9期882-888,共7页
目的探讨Notch信号通路在血小板源生长因子AA(PDGF-AA)诱导血管平滑肌细胞(VSMC)增殖和迁移中的作用及机制。方法脱臼处死1~2月龄雄性SD大鼠,无菌取腹主动脉,剥弃外膜及去除内皮后,贴块法培养VSMC,α-SM-actin染色鉴定。实验分为... 目的探讨Notch信号通路在血小板源生长因子AA(PDGF-AA)诱导血管平滑肌细胞(VSMC)增殖和迁移中的作用及机制。方法脱臼处死1~2月龄雄性SD大鼠,无菌取腹主动脉,剥弃外膜及去除内皮后,贴块法培养VSMC,α-SM-actin染色鉴定。实验分为四组:对照组、γ-secretase抑制剂组(DAPT组)、PDGF-AA组和PDGFAA+γ-secretase抑制剂组(PDGF-AA+DAPT组)。实时荧光定量PCR(Real-time q PCR)检测Notch信号分子mRNA表达;Cell Titer96 Aqueous One Solution试剂盒检测细胞增殖活性;采用细胞划痕实验检测VSMC的迁移能力。结果腹主动脉VSMC表达Notch信号通路Jagged1、Jagged2、Notch1~3等几种主要的配体及受体;PDGF-AA刺激24h和48 h后分别导致Jagged2和Jagged1 mRNA表达显著增强(P〈0.01,n=4);与0 h相比,PDGF-AA刺激72 h后,Notch1、Notch3 mRNA表达显著增高(P〈0.01,n=4),而刺激24 h后Notch2 mRNA表达显著降低。PDGF-AA显著促进HES1(P〈0.05,n=4)、HEY2(P〈0.05,n=4)和转录因子Rbp-jКmRNA(P〈0.05,n=4)表达,DAPT抑制PDGF-AA介导的HES1、HEY2 mRNA表达增强(P〈0.01,n=4),但是进一步促进PDGF-AA诱导的Rbp-jКmRNA表达(P〈0.05,n=4);PDGF-AA刺激促进VSMC增殖(P〈0.01,n=5)和减少划痕余留面积(P〈0.01,n=4),两种效应均可被DAPT显著阻抑(P〈0.01,n=4)。结论 PDGF-AA调节了VSMC Notch信号分子表达,PDGF-AA部分通过激活Notch信号通路调节VSMC的增殖和迁移。 展开更多
关键词 NOTCH 血管平滑肌细胞 血小板源生长因子AA 细胞增殖 细胞迁移
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