Localization of dichlorofluorescin in cardiac myocytes: implications for assessment of oxidative stress.
Localization of dichlorofluorescin in cardiac myocytes: implications for assessment of oxidative stress.
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二氯荧光素在心肌细胞中的定位:对氧化应激评估的影响。
DOI:
10.1152/ajpheart.2000.278.3.h982
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
Sarvazyan,N
中科院分区:
文献类型:
--
作者:
Swift,LM;Sarvazyan,N
Localization and staining features of the oxidant-sensitive fluorescent probe 2′7′-dichlorofluorescin (DCFH) were evaluated in isolated cardiac muscle cells. Cardiomyocytes rapidly accumulated the probe and retained steady levels of DCFH and its highly fluorescent oxidized product dichlorofluorescein (DCF) in probe-free medium for 1.5 h. DCF was associated with mitochondria and was released by the proton ionophore carbonyl cyanidem-chlorophenylhydrazone but not by saponin, which permeabilizes the plasma membrane. A mitochondrial distribution of DCF was also suggested by experiments with the mitochondrial marker MitoTracker Red, in which quenching was observed between DCF and MitoTracker Red in live cells. Isolated cardiac mitochondria rapidly accumulated DCF, and high micromolar concentrations of the probe inhibited ADP-stimulated respiration rate. The study provides an information base essential for the interpretation and design of experiments with DCF as a marker of oxidative stress in cardiac muscle and reveals preferential localization of the probe in mitochondria.
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影响因子:
5.4
作者:
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通讯作者:
G. Todaro
影响因子:
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作者:
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影响因子:
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作者:
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通讯作者:
S. Oroszlan
DOI:
10.1073/pnas.80.3.731
发表时间:
1983-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
DEVARE, SG;REDDY, EP;AARONSON, SA
通讯作者:
AARONSON, SA
DOI:
10.1101/087969132.10c.785
发表时间:
1982
期刊:
Cold Spring Harbor Monograph Archive
影响因子:
--
作者:
N. Teich;J. Wyke;T. Mak;A. Bernstein;W. Hardy
通讯作者:
W. Hardy