SPARC Knockdown Reduces Glutamate-Induced HT22 Hippocampal Nerve Cell Damage by Regulating Autophagy.

SPARC Knockdown Reduces Glutamate-Induced HT22 Hippocampal Nerve Cell Damage by Regulating Autophagy.
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SPARC 敲低通过调节自噬减少谷氨酸诱导的 HT22 海马神经细胞损伤

DOI:
10.3389/fnins.2020.581441
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发表时间:
2020
影响因子:
4.3
通讯作者:
Li Q
Li Q
中科院分区:
医学2区
文献类型:
--
作者:
Chen S;Zou Q;Guo Q;Chen Y;Kuang X;Zhang Y;Liu Y;Wu W;Li G;Tu L;Tong J;Li S;Ma L;Li Q

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富含半胱氨酸的分泌蛋白(Secreted protein,CYP)是中枢神经系统(CNS)神经发育过程中参与细胞外基质和细胞间相互作用的一种基质细胞蛋白。氧化性谷氨酸毒性涉及CNS疾病,包括癫痫、阿尔茨海默病和缺血性中风。然而,在中枢神经系统疾病中,神经损伤的分子机制尚未完全了解。本研究采用谷氨酸诱导的神经损伤模型,探讨谷氨酸诱导神经损伤的分子机制。在谷氨酸诱导的HT 22海马神经损伤中,自噬和自噬水平增加。综上所述,本研究证实了谷氨酸调节HT22海马神经细胞的自噬,并且其敲低通过抑制自噬来减轻谷氨酸诱导的HT22海马神经损伤。这些结果表明,在中枢神经系统疾病的神经损伤中起着至关重要的作用。
Secreted protein acidic and rich in cysteine (SPARC) is a matricellular protein involved in the extracellular matrix and interactions between cells during neural development of the central nervous system (CNS). Oxidative glutamate toxicity is involved in CNS diseases, including epilepsy, Alzheimer’s disease, and ischemic stroke. However, the molecular mechanism of nerve injury is not fully understood in CNS diseases. Herein, the glutamate-induced nerve damage model was used to explore the molecular mechanisms affecting nerve damage. The levels of SPARC and autophagy were increased in glutamate-induced HT22 hippocampal nerve injury. In summary, the current study confirmed that SPARC regulates autophagy in HT22 hippocampal nerve cells, and its knockdown reduces the glutamate-induced HT22 hippocampal nerve injury by inhibiting autophagy. These findings suggested that SPARC plays a crucial role in nerve injury of CNS diseases.
DOI: 10.1155/2014/321209
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