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2023-03-22 17:42:01

Acetylcysteine (Synonyms: 乙酰半胱氨酸; N-Acetylcysteine; N-Acetyl-L-cysteine; NAC)

Acetylcysteine (N-Acetylcysteine) 是一种粘液溶解剂 (mucolytic agent),可用于减少粘液的厚度。Acetylcysteine 是一种 ROS 抑制剂。Acetylcysteine 是半胱氨酸前体,通过中和花生四烯酸依赖的5-脂氧合酶活性所产生的毒性脂质来防止血红素诱导的铁中毒 (ferroptosis)。Acetylcysteine 可以诱导细胞凋亡 (apoptosis),并具有抗流感病毒活性。Acetylcysteine Chemical Structure

生物活性

Acetylcysteine (N-Acetylcysteine) is a mucolytic agent which reduces the thickness of the mucus. Acetylcysteine is a ROS inhibitor[1]. Acetylcysteine is a cysteine precursor, prevents hemin-induced ferroptosis by neutralizing toxic lipids generated by arachidonate-dependent activity of 5-lipoxygenases[5]. Acetylcysteine induces cell apoptosis[2][3]. Acetylcysteine also has anti-influenza virus activities[7].

IC50 & TargetHuman Endogenous Metabolite
体外研究
(In Vitro)

Acetylcysteine prevents apoptotic DNA fragmentation and maintains long-term survival in the absence of other trophic support in serum-deprived PC12 cells. Acetylcysteine also prevents death of PC12 cells and sympathetic neurons[2].
Acetylcysteine causes dose-dependent reductions in viability in rat and human aortic smooth muscle cells[3].
Acetylcysteine activates the Ras-extracellular signal-regulated kinase (ERK) pathway in PC12 cells. Acetylcysteine protects neuronal cells from death evoked by withdrawal of trophic support. Acetylcysteine increases nitric oxide (NO) release from protein-bound stores in vascular tissue. Acetylcysteine pretreatment of PC12 cells interferes with NGF-dependent signaling and neurite outgrowth, and it is suggested that Acetylcysteine interferes with redox-sensitive steps in the NGF mechanism[4].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究
(In Vivo)

Acetylcysteine (150, 300 mg/kg) treatment significantly reduces liver transaminases in all groups of treatment, mostly in group Acetylcysteine 300. Lung glutathione peroxidase is significantly increases in group Acetylcysteine 300 (P=0.04), while the other oxidation biomarkers show no significant differences[6].
Acetylcysteine improves cognition of 12-month-old SAMP8 mice in both the T-maze footshock avoidance paradigm and the lever press appetitive task without inducing non-specific effects on motor activity, motivation to avoid shock, or body weight[5].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial

NCT NumberSponsorConditionStart DatePhaseNCT00247507Far Eastern Memorial HospitalAnemia|Atherosclerosis|End-Stage Renal Disease|Oxidative Stress|Pro-InflammationSeptember 2005Phase 4NCT03493178Baylor College of Medicine|The Methodist Hospital Research InstituteMild Cognitive ImpairmentApril 14, 2018Early Phase 1NCT02249546National Taiwan University HospitalHelicobacter Pylori InfectionSeptember 2014Phase 4

分子量

163.19

性状

Solid

Formula

C5H9NO3S

CAS 号

616-91-1

中文名称

乙酰半胱氨酸

结构分类
  • Ketones, Aldehydes, Acids

运输条件


储存方式

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

溶解性数据

In Vitro: 

H2O : 163 mg/mL (998.84 mM; ultrasonic and adjust pH to 7 with NaOH)

DMSO : ≥ 100 mg/mL (612.78 mM)

* "≥" means soluble, but saturation unknown.

配制储备液

浓度溶剂体积质量1 mg5 mg10 mg1 mM6.1278 mL30.6391 mL61.2783 mL5 mM1.2256 mL6.1278 mL12.2557 mL10 mM0.6128 mL3.0639 mL6.1278 mL

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (protect from light)。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

参考文献


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