SKF 96365 hydrochloride is an orally active TRP-channel/store-operated Ca²⁺ entry (SOCE) inhibitor that blocks TRPC channels, voltage-gated Ca²⁺ channels and multiple K⁺ channels, and suppresses STIM1-mediated Ca²⁺ signaling[1][2]. SKF 96365 hydrochloride is commonly used to investigate calcium homeostasis, cardiac arrhythmias and anti-tumor mechanisms[3].
In vitro, SKF 96365 hydrochloride (5-20µM; 48h) suppressed cell proliferation, arrested cells in G0/G1, reduced CD69/CD25 expression, collapsed mitochondrial membrane potential, opened the permeability-transition pore and markedly decreased IFN-γ, TNF-α and IL-10 secretion in mouse lymphocytes[4]. SKF 96365 hydrochloride (1-10µM; 6min) blocks native cardiac INa in rat ventricular myocytes with IC50=1.36µM (0.5Hz), shifts inactivation by -9.5mV, accelerates closed-state inactivation and slows recovery[5].
In vivo, SKF 96365 hydrochloride (100µg in 20µL; 5min; s.c.) reversed melittin-induced persistent spontaneous nociception, thermal hyperalgesia and mechanical hypersensitivity in the ipsilateral hindpaw of adult Sprague–Dawley rats[6]. SKF 96365 hydrochloride (20mg/kg/day; i.p.; 14 days) markedly reduced HCT116 xenograft tumor volume and weight, decreased p-CaMKIIγ/p-AKT and PCNA, and increased cleaved caspase-3/caspase-9 and LC3-II in BALB/c nude mice[7].
References:
[1] Liu H, Yang L, Chen KH, et al. SKF-96365 blocks human ether-à-go-go-related gene potassium channels stably expressed in HEK 293 cells. Pharmacol Res. 2016;104:61-69.
[2] Chen T, Zhu J, Zhang C, Huo K, Fei Z, Jiang XF. Protective effects of SKF-96365, a non-specific inhibitor of SOCE, against MPP+-induced cytotoxicity in PC12 cells: potential role of Homer1. PLoS One. 2013;8(1):e55601.
[3] Chen YF, Shen MR. The Important Role of Ion Transport System in Cervical Cancer. Int J Mol Sci. 2021;23(1):333.
[4] Ye Y, Zhang Y, Lu X, et al. The anti-inflammatory effect of the SOCC blocker SK&F 96365 on mouse lymphocytes after stimulation by Con A or PMA/ionomycin. Immunobiology. 2011;216(9):1044-1053.
[5] Chen KH, Liu H, Yang L, Jin MW, Li GR. SKF-96365 strongly inhibits voltage-gated sodium current in rat ventricular myocytes. Pflugers Arch. 2015;467(6):1227-1236.
[6] Ding J, Zhang JR, Wang Y, et al. Effects of a non-selective TRPC channel blocker, SKF-96365, on melittin-induced spontaneous persistent nociception and inflammatory pain hypersensitivity. Neurosci Bull. 2012;28(2):173-181.
[7] Jing Z, Sui X, Yao J, et al. SKF-96365 activates cytoprotective autophagy to delay apoptosis in colorectal cancer cells through inhibition of the calcium/CaMKIIγ/AKT-mediated pathway. Cancer Lett. 2016;372(2):226-238.
SKF 96365 hydrochloride是一种具有口服活性的TRP通道/钙库操控性钙内流(SOCE)抑制剂,可阻断TRPC通道、电压门控钙通道及多种钾通道,并抑制STIM1介导的钙信号[1][2]。SKF 96365 hydrochloride常用于研究钙稳态、心律失常及抗肿瘤机制[3]。
体外实验中,SKF 96365 hydrochloride(5-20µM;48h)可抑制小鼠淋巴细胞增殖,诱导G0/G1期阻滞,降低CD69/CD25表达,破坏线粒体膜电位,开放通透性转换孔,并显著减少IFN-γ、TNF-α和IL-10的分泌[4]。SKF 96365 hydrochloride(1-10µM;6min)可阻断大鼠心室肌细胞中的原生心脏INa,IC50为1.36µM(0.5Hz),使失活电位负移9.5mV,加速关闭态失活并延缓恢复[5]。
体内实验中,SKF 96365 hydrochloride(100µg in 20µL;5min;皮下注射)可逆转成年Sprague-Dawley大鼠同侧后爪中蜂毒肽诱导的持续自发性痛觉、热痛觉过敏和机械性过敏[6]。SKF 96365 hydrochloride(20mg/kg/天;腹腔注射;14天)显著减少BALB/c裸鼠中HCT116异种移植瘤的体积和重量,降低p-CaMKIIγ/p-AKT和PCNA表达,并增加cleaved caspase-3/caspase-9和LC3-II表达 [7]。
















