Spermine (Neuridine) 是人体内源性多胺类物质,作为一个直接的自由基清除剂,具有抗病毒作用,能够保护 DNA 免受自由基的攻击,同时也是细胞增殖、分化、凋亡的关键调控因子。Spermine 能够抑制某些细菌,尤其是金黄色葡萄球菌菌株。Spermine 剂量依赖性地引起纹状体神经毒性。Spermine 可逆地抑制小鼠脾细胞原代培养中的 DNA 合成反应、混合淋巴细胞反应和溶细胞淋巴细胞反应的诱导。
GS-441524tris-isobutyryl ester is a prodrug form of the antiviral nucleoside analog and remdesivir metabolite GS-441524 .1It reduces the cytopathic effect of respiratory syncytial virus (RSV) in infected HEp-2 cells with an EC50value of 0.26 μM.
1.Mackman, R.L., Hui, H.C., Perron, M., et al.Prodrugs of a 1’-CN-4-aza-7,9-dideazaadenosine C-nucleoside leading to the discovery of remdesivir (GS-5734) as a potent inhibitor of respiratory syncytial virus with efficacy in the african green monkey model of RSVJ. Med. Chem.64(8)5001-5017(2021)
GM 1489 is a broad-spectrum inhibitor of matrix metalloproteinases (MMPs) with Ki values of 0.002, 0.1, 0.5, 0.2, and 20 μM for MMP-1, MMP-8, MMP-2, MMP-9, and MMP-3, respectively. It reduces 5-aza-2'-deoxycytidine-induced increases in MMP-1, MMP-2, MMP-3, MMP-7, MMP-9, and MMP-14 expression as well as cell invasion in AsPC-1, BxPC-3, Hs766T, MiaPaCa2, and PANC-1 cancer cells. Topical administration of GM 1489 (100 μg) inhibits increases in ear thickness and epidermal hyperplasia induced by phorbol 12-myristate 13-acetate and phorbol dibutyrate (PdiBu) in mice.