The role of hydroxyl radicals and calcium ions in the priming of a respiratory burst in neutrophils and the increase in luminol-dependent blood chemiluminescence on exposure to combined magnetic fields with a very weak low-frequency alternating component

被引：0
作者：
Novikov V.V. [1 ]
Yablokova E.V. [1 ]
Fesenko E.E. [1 ]
机构：
[1] Institute of Cell Biophysics, Russian Academy of Sciences, ul. Institutskaya 3, Pushchino, Moscow oblast
来源：
Biophysics | 2017年 / 62卷 / 3期
基金：
俄罗斯基础研究基金会;
关键词：
calcium ions; chemiluminescence; free radicals; magnetic field; neutrophils; reactive oxygen species;
D O I：
10.1134/S0006350917030149
中图分类号：
学科分类号：
摘要：
The intracellular calcium chelator 1,2-bis(2-aminophenoxy)ethane N,N,N′,N′-tetraacetic acid acetoxymethyl ester (BAPTA AM) used at low concentrations (1.0 and 2.5 μM) was shown to block the priming effect of weak combined static (42 μT) and low-frequency collinear alternating (1.0, 4.4, and 16.5 Hz; 0.86 μT) magnetic fields. This blockage was inferred from a greater increase in chemiluminescence observed for a mouse neutrophil suspension exposed to combined magnetic fields in response to the bacterial peptide N-formyl–Met–Leu–Phe added in the presence of luminol. Similar results were obtained for the effect of BAPTA AM on luminol-dependent chemiluminescence of whole blood. The priming effect of weak combined magnetic fields on the respiratory burst in neutrophils did not depend on the presence of extracellular Ca2+ and was not affected by the hydroxyl radical scavenger dimethyl sulfoxide used at 0.025–1.0 mM. © 2017, Pleiades Publishing, Inc.
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页码：440 / 443
页数：3
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