| 1 | ATP11B deficiency leads to impairment of hippocampal synaptic plasticity显示文摘Synaptic plasticity is known to regulate and support signal transduction between neurons, while synaptic dysfunction contributes to multiple neurological and other brain disorders;however, the specific mechanism underlying this process remains unclear. In the present study, abnormal neural and dendritic morphology was observed in the hippocampus following knockout of Atpllb both in vitro and in vivo. Moreover, ATP11B modified synaptic ultrastructure and promoted spine remodeling via the asymmetrical distribution of phosphatidylserine and enhancement of glutamate release, glutamate receptor expression, and intracellular Ca^2+ concentration. Fuithermoe experimental results also indicate that ATP11B regulated synaptic plasticity in hippocampal neurons through the MAPK14 signaling pathway. In conclusion, our data shed light on the possible mechanisms underlying the regulation of synaptic plasticity and lay the foundation for the exploration of proteins involved in signal transduction during this process. | Jiao Wang Weihao Li Fangfang Zhou Ruili Feng Fushuai Wang Shibo Zhang Jie Li Qian Li Yajiang Wang Jiang Xie Tieqiao Wen | 2019 | Journal of Molecular Cell Biology2019，11，8： | 2 |
| 2 | 人ATP11A和ATP11B克隆、表达及鉴定显示文摘目的构建人P4型磷脂转移酶11A或11B(ATP11A或ATP11B)表达载体,并检测其上调ATP11A或ATP11B的效果。方法根据ATP11A或ATP11B序列设计引物,克隆到克隆载体(EZ-T^(TM)Cloning Vector)上,通过酶切鉴定,并经测序验证。分别将ATP11A和ATP11B序列酶切、定向连接到表达载体pLVX-IRES-mCherry、pLVX-IRES-RFP上。然后利用脂质体将重组带有免疫荧光蛋白的表达质粒转染至HEK-293T,最后通过测序、荧光显微镜检、流式细胞测量术分析、免疫印迹对重组细胞株进行表达验证。结果通过电泳及酶切鉴定证实了ATP11A、ATP11B表达载体的成功构建,荧光显微镜定性观察质粒转染效率,流式细胞测量术检测转染效率分别为38.9%、41.9%,免疫印迹法只检测到转染表达质粒的细胞有标签蛋白而对照组均无蛋白表达。结论成功构建了人ATP11A、ATP11B的表达载体,并可有效上调其表达水平,为将来应用ATP11A或ATP11B进行机制研究奠定了基础。 | 韩甜甜 曾靖 尹婕 李晓莹 金滢 李艳 潘凌亚 | 2022 | 基础医学与临床2022，42，5： | 0 |
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