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Interleukin 4-induced neuroprotection and regulation of microglia activation as a therapeutic approach in the MPTP model of Parkinson's disease 被引量:2
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作者 Bjorn Spittau 《Neural Regeneration Research》 SCIE CAS CSCD 2017年第9期1433-1434,共2页
Parkinson's disease (PD) has been described as one of the most common neurodegenerative diseases affecting up to 2% of the worldwide population over 60 years of age. The hallmarks of PD are progressive loss of midb... Parkinson's disease (PD) has been described as one of the most common neurodegenerative diseases affecting up to 2% of the worldwide population over 60 years of age. The hallmarks of PD are progressive loss of midbrain dopaminergic (mDA) neurons and a decrease in striatal dopamine levels, which result in typ- ical clinical motor symptoms such as akinesia, resting tremor, rigidity, and gait impairments. Although the causes for PD are only partially understood and seem to be very heterogeneous, one of the common phenomenons observed in toxin-based an- imal models of PD as well as PD patients is a microglia-driven neuroinflammatory response, 展开更多
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Transforming growth factor β1-mediated anti-inflammation slows progression of midbrain dopaminergic neurodegeneration in Parkinson's disease?
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作者 Björn Spittau 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第10期1578-1580,共3页
Parkinson’s disease(PD)is characterized by the progressive loss of midbrain dopaminergic(m DA)neurons and a subsequent decrease in striatal dopamine levels,which cause the typical clinical motor symptoms such as ... Parkinson’s disease(PD)is characterized by the progressive loss of midbrain dopaminergic(m DA)neurons and a subsequent decrease in striatal dopamine levels,which cause the typical clinical motor symptoms such as muscle rigidity,bradykinesia and tremor. 展开更多
关键词 Transforming growth factor mediated anti-inflammation slows progression of midbrain dopaminergic neurodegeneration in Parkinson’s disease TGF
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电碳酸氢钠协同转运蛋白1(NBCe1)在小鼠皮质星形胶质细胞中的功能性表达依赖于S255-257并受mTOR调节
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作者 Khakipoor S Giannaki M +6 位作者 Theparambil SM Zecha J Küster B Heermann S Deitmer JW Roussa E 杜一星(编译) 《神经损伤与功能重建》 2019年第7期F0003-F0003,共1页
电碳酸氢钠协同转运蛋白1,NBCe1(SLC4A4)是星形胶质细胞中表达的主要碳酸氢根转运蛋白。它对碳酸氢根高度敏感,并且是细胞内、细胞外和突触pH值的主要调节剂,从而调节神经元兴奋性。尽管已知NBCe1的这些基本功能,然而NBCe1介导的星形胶... 电碳酸氢钠协同转运蛋白1,NBCe1(SLC4A4)是星形胶质细胞中表达的主要碳酸氢根转运蛋白。它对碳酸氢根高度敏感,并且是细胞内、细胞外和突触pH值的主要调节剂,从而调节神经元兴奋性。尽管已知NBCe1的这些基本功能,然而NBCe1介导的星形胶质细胞对细胞外pH值变化反应的分子机制尚不明确。使用原代小鼠皮质星形胶质细胞培养,本研究探索长期细胞外代谢碱中毒对NBCe1调节的影响;并通过免疫印迹,表面蛋白的生物素化,使用H+敏感染料2,7-双(羧乙基)-5-(6)-羧基荧光素记录细胞内H+,和磷酸化蛋白质组学分析阐明该调节作用潜在的分子机制。结果显示代谢性碱中毒后NBCe1活性显著下调,而NBCe1的蛋白质丰度或表面表达并不受影响。在碱中毒期间,NBCe1活性下调时细胞内H+变化的速率在野生型星形胶质细胞中降低,但在NBCe1缺陷小鼠的皮质星形胶质细胞中不变。激活mTOR信号传导能够拯救碱中毒诱导的NBCe1活性降低。此外,质谱分析揭示S255-257的组成型磷酸化,而突变分析揭示这些残基对NBCe1转运活性至关重要。本研究证明了一种通过调节NBCe1的功能表达而实现的新的mTOR调节机制。该种机制不仅适用于星形胶质细胞,也适用于上皮细胞中的NBCe1。 展开更多
关键词 星形胶质细胞 癫痫 生长因子 PH值
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Trichostatin A在体内对鸡胚翅芽发生中基因表达模式的作用 被引量:1
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作者 赵望泓 戴方平 +1 位作者 Beate Brand-Saberi 王建林 《中国科学(C辑)》 CSCD 北大核心 2007年第6期641-651,共11页
表观遗传和染色质重塑参与了胚胎形成及肿瘤发生,乙酰化作用是调控基因转录的关键修饰之一,组蛋白去乙酰基酶抑制剂被视为肿瘤治疗中最有前景的药物开发目标.然而哪些基因在体内对乙酰化作用修饰更敏感?这些基本问题仍未完全知晓.以鸡... 表观遗传和染色质重塑参与了胚胎形成及肿瘤发生,乙酰化作用是调控基因转录的关键修饰之一,组蛋白去乙酰基酶抑制剂被视为肿瘤治疗中最有前景的药物开发目标.然而哪些基因在体内对乙酰化作用修饰更敏感?这些基本问题仍未完全知晓.以鸡胚翅芽作为实验模型,用HDAC抑制剂trichostatin A(TSA)处理翅芽,研究翅芽发生中一系列基因对TSA的反应.结果显示,TSA(75μmol/L)能够改变某些对翅芽发育具有重要功能的基因的表达水平,其中SF/HGF和Twist1基因的表达被上调;FGF8,Shh,TCF4,Myf5及MyoD基因的表达被下调;与此不同,Pax3,Paraxis,CREB和PCNA基因的表达水平不受TSA作用的影响.结果提示,发育的鸡胚翅芽能够作为一个便利的、供体内研究HDACs抑制剂对基因表达作用的模型,有助于提高对染色质重塑和表观遗传对基因表达的调控作用,以及对正在开发的抗癌药物的认识. 展开更多
关键词 去乙酰化酶抑制剂 基因表达 翅芽发育 TRICHOSTATIN A 鸡胚
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Hippocampal stem cells:so they are multipotent!
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作者 Verdon Taylor 《Journal of Molecular Cell Biology》 SCIE CAS CSCD 北大核心 2011年第5期270-272,共3页
Although neurogenesis continues throughout life in the mammalian brain,the issue of whether the stem cells that drive the process in vivo are self-renewing and multipotent remains unclear.In a recent landmark paper by... Although neurogenesis continues throughout life in the mammalian brain,the issue of whether the stem cells that drive the process in vivo are self-renewing and multipotent remains unclear.In a recent landmark paper by Bonaguidi et al.(2011)published in Cell,the authors provide clonal evidence that neural stem cells in the dentate gyrus of the adult hippocampus are indeed multipotent and undergo symmetric cell divisions. 展开更多
关键词 al. POTENT STEM
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