Effects of a lichen galactomannan and its vanadyl (IV) complex on peritoneal macrophages and leishmanicidal activity

被引：1

作者：

Guilhermina R. Noleto

Ana Lucia R. Mercê

Marcello Iacomini

Philip A.J. Gorin

Vanete Thomaz Soccol

Maria Benigna M. Oliveira

机构：

来源：

Molecular and Cellular Biochemistry | 2002年 / 233卷

关键词：

galactomannan; vanadyl ion; leishmanicidal activity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A galactomannan (GMPOLY) isolated from lichen Ramalina celastri was complexed with vanadyl ion (IV;VO) forming the complex GMPOLY-VO. Both GMPOLY and GMPOLY-VO diminished the superoxide anion production by macrophages triggered with PMA, the complex giving rise to this effect at concentrations 100 times lower than GMPOLY. Macrophages treated with GMPOLY enhanced the nitric oxide production (40%), this effect not being observed when interferon-γ ((IFN-γ) or IFN-γ plus lipopolysaccharide (LPS) were present. No effect on nitric oxide production was observed by treatment of macrophage with GMPOLY-VO. Both GMPOLY and GMPOLY-VO exhibited leishmanicidal effects on the amastigote form of Leishmania amazonesis, but only GMPOLY-VO inhibited the growth of promastigote form.

引用

页码：73 / 83

页数：10

共 199 条

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