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Quinolinic acid

Quinolinic acid

产品编号 T4096   CAS 89-00-9
别名: 喹啉酸, pyridine-2,3-dicarboxylic acid, QUIN

Quinolinic acid (QUIN) 是一种内源性 N-甲基-D-天冬氨酸 (NMDA) 受体激动剂,由 L-色氨酸通过犬尿氨酸途径合成,具有调节 NMDA 神经元损伤和功能障碍的潜力。

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Quinolinic acid Chemical Structure
Quinolinic acid, CAS 89-00-9
规格 价格/CNY 货期 数量
500 mg ¥ 331 现货
1 g ¥ 415 现货
1 mL * 10 mM (in DMSO) ¥ 415 现货
千万补贴 助力科研
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产品目录号及名称: Quinolinic acid (T4096)
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纯度: 99.93%
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参考文献
产品描述 Quinolinic acid (QUIN) is an endogenous N-methyl-D-aspartate (NMDA) receptor agonist synthesized from L-tryptophan via the kynurenine pathway.
体外活性 QUIN has an uptake system, its neuronal degradation enzyme is rapidly saturated, and the rest of the extracellular QUIN can continue stimulating the NMDA receptor. QUIN (10?μM) prevents of glutamate-induced excitotoxicity in primary cultures of rat cerebellar granule neurons, nevertheless mature organotypic cultures of rat corticostriatal system or caudate nucleus chronically exposed to 100?nM QUIN for up to 7 weeks show focal degeneration characterized by the presence of vacuoles in neuropil, swollen dendrites, occasional swollen post-synaptic elements, and degenerated neurons. In vitro QUIN treatment of human primary fetal neurons leads to a substantial increase of tau phosphorylation at multiple positions. The increase in QUIN-induced phosphorylation of tau is attributed to a decrease in the expression and activity of the major tau phosphatases. QUIN can inhibit B monoamine oxidase (MAO-B) in human brain synaptosomal mitochondria and also can be a potent inhibitor of phosphoenolpyruvate carboxykinase (EC 4.1.1.32) from rat liver cytoplasm, an important enzyme in the gluconeogenesis pathway that converts oxaloacetate to phosphoenolpyruvate. QUIN can increase free radical production by inducing NOS activity in astrocytes and neurons, leading to oxidative stress, increasing both poly(ADP-ribose) polymerase (PARP) activity and extracellular lactate dehydrogenase (LDH) activity [1].
体内活性 Quinolinic acid (QUIN), a neuroactive metabolite of the kynurenine pathway, is normally presented in nanomolar concentrations in human brain and cerebrospinal fluid (CSF) and is often implicated in the pathogenesis of a variety of human neurological diseases. The concentration of QUIN varies among different brain regions, with the cerebral cortex containing approximately 1.8?nmol/g wet weight; almost 2-fold than that found in the hippocampus (1?nmol/g wet weight). Intraarterial administration of either micromolar or millimolar concentrations of QUIN results in only negligible accumulations of this metabolite in the brain, suggesting that the central nervous system (CNS) appears to be well protected by the blood-brain barrier (BBB) from peripheral QUIN. QUIN can also increase glutamate release and inhibit its reuptake by astrocytes, thus increasing its concentration in the microenvironments, causing neurotoxicity and also limiting glutamate to glutamine recycling in astrocytes by decreasing glutamine synthetase activity. Intrastriatal injection of QUIN provokes a decrease in cellular respiration and ATP levels [1].
别名 喹啉酸, pyridine-2,3-dicarboxylic acid, QUIN
分子量 167.12
分子式 C7H5NO4
CAS No. 89-00-9

存储

Powder: -20°C for 3 years | In solvent: -80°C for 1 year

溶解度

DMSO: 50 mg/mL (299.19 mM)

溶液配制表

可选溶剂 浓度 体积 质量 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 5.9837 mL 29.9186 mL 59.8372 mL 149.5931 mL
5 mM 1.1967 mL 5.9837 mL 11.9674 mL 29.9186 mL
10 mM 0.5984 mL 2.9919 mL 5.9837 mL 14.9593 mL
20 mM 0.2992 mL 1.4959 mL 2.9919 mL 7.4797 mL
50 mM 0.1197 mL 0.5984 mL 1.1967 mL 2.9919 mL
100 mM 0.0598 mL 0.2992 mL 0.5984 mL 1.4959 mL

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TargetMol Library Books参考文献

1. Lugohuitrón R, et al. Quinolinic acid: an endogenous neurotoxin with multiple targets.[J]. Oxidative Medicine and Cellular Longevity,2013,(22013-9-5), 2013, 2013:104024. 2. Latif-Hernandez A, et al. Quinolinic acid injection in mouse medial prefrontal cortex affects reversal learning abilities, cortical connectivity and hippocampal synaptic plasticity[J]. Scientific Reports, 2016, 6:36489.
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相关化合物库

该产品包含在如下化合物库中:
烟草单体化合物库 人内源代谢化合物库 微生物天然产物库 膜蛋白靶向化合物库 神经退行性疾病化合物库 神经信号分子库 已知活性化合物库 离子通道库 抗帕金森病化合物库 抗衰老化合物库

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Keywords

Quinolinic acid 89-00-9 Membrane transporter/Ion channel Metabolism Neuroscience Endogenous Metabolite NMDAR iGluR 喹啉酸 pyridine-2,3-dicarboxylic acid Inhibitor Ionotropic glutamate receptors inhibit QUIN inhibitor

 

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