Heat Shock Cognate 70 kDa Protein Is the Target of Tetradecyl 2,3-Dihydroxybenzoate for Neuritogenic Effect in PC12 Cells.

Heat Shock Cognate 70 kDa Protein Is the Target of Tetradecyl 2,3-Dihydroxybenzoate for Neuritogenic Effect in PC12 Cells.
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热休克同源 70 kDa 蛋白是 2,3-二羟基苯甲酸十四酯在 PC12 细胞中发挥神经突致作用的靶标

DOI:
10.3390/biomedicines9101483
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发表时间:
2021-10-16
期刊:
影响因子:
4.7
通讯作者:
Qi J
Qi J
中科院分区:
工程技术3区
文献类型:
--
作者:
Cheng L;Wang Y;Xiang L;Qi J

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2,3-二羟基苯甲酸十四烷基酯(ABG-001)是龙胆皂苷衍生的先导化合物,具有显著的神经元生成活性。然而,迄今为止,ABG-001的目标尚未确定。在本研究中,通过基于活性的蛋白质谱(ABPP)分析研究了ABG-001的潜在靶标,ABPP分析是一种使用化学探针进行靶标鉴定的化学蛋白质组学方法。结果表明,ABG-001的潜在靶蛋白是热休克同源70 kDa蛋白(Hsc 70)、78 kDa葡萄糖调节蛋白(GRP 78)和14-3-3 θ蛋白。然后,通过使用抑制剂、细胞热位移试验(CETSA)和小干扰RNA(siRNA)分析来确认ABG-001的潜在靶点。Hsc 70抑制剂和siRNA显著降低ABG-001诱导的神经突生长。此外,ABG-001诱导的神经突起生长被针对Hsc 70的siRNA减少,并且CETSA的结果表明,Hsc 70在ABG-001处理后显示出显著的热稳定性偏移效应。这些结果表明Hsc 70是ABG-001在PC 12细胞中的靶蛋白。
Tetradecyl 2,3-dihydroxybenzoate (ABG-001) is a lead compound derived from gentisides with a remarkable neuritogenic activity. However, the target of ABG-001 is yet to be defined to date. In this study, the potential target of ABG-001 was investigated via an activity-based protein profiling (ABPP) analysis, which is a chemical proteomic method for target identification by using chemical probes. Results indicated that the potential target proteins of ABG-001 were heat shock cognate 70 kDa protein (Hsc70), 78 kDa glucose-regulated protein (GRP78), and 14-3-3 theta protein. Then, the potential target of ABG-001 was confirmed by using inhibitors, the cellular thermal shift assay (CETSA) and small-interfering RNA (siRNA) analysis. The inhibitor of Hsc70 and siRNA significantly decreased the neurite outgrowth induced by ABG-001. Furthermore, ABG-001 induced neurite outgrowth was reduced by siRNA against Hsc70, and the results of CETSA suggested that Hsc70 showed a significant thermal stability-shifted effect upon ABG-001 treatment. These results indicated that Hsc70 is the target protein of ABG-001 in PC12 cells.
2,3-二羟基苯甲酸十四酯通过调节胰岛素和脂联素信号通路改善糖尿病小鼠的症状
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