What question did this study set out to answer?

Visualize and monitor the intracellular patterns of doxorubicin-induced oxidative stress in living cardiac myocytes using laser-scanning confocal microscopy.

November 1, 1996AJP Heart and Circulatory Physiology

Visualization of doxorubicin-induced oxidative stress in isolated cardiac myocytes

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Visualize and monitor the intracellular patterns of doxorubicin-induced oxidative stress in living cardiac myocytes using laser-scanning confocal microscopy.
Isolated adult rat cardiomyocytes were preloaded with 2',7'-dichlorofluorescin, an oxidant-sensitive fluorescent probe, and exposed to 40–160 µM doxorubicin.
Live-cell dual-channel laser-scanning confocal microscopy simultaneously recorded oxidized dichlorofluorescein emission (515–530 nm) and doxorubicin fluorescence (>610 nm).
Exposure to 40–160 µM doxorubicin triggered noticeable intracellular oxidation adjacent to mitochondria within 20 minutes.
Simultaneous imaging confirmed an oxidative mechanism of doxorubicin cardiotoxicity and validated dual-channel confocal imaging for tracking live cardiomyocyte oxidation.

Structured PICO

Population

Isolated cells from adult rat hearts preloaded with 2',7'-dichlorofluorescin

Intervention

Exposure to 40-160 microM doxorubicin for 20 min

Outcome

Intracellular oxidation and intracellular distribution of doxorubicin visualized by laser-scanning confocal microscopysurrogate

The study confirms an oxidative mechanism of doxorubicin cardiotoxicity using a novel confocal microscopy technique in living cardiomyocytes.

Discussion

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Implication

Supports oxidative mechanism of doxorubicin cardiotoxicity in rat myocytes; leaves open clinical translation and cardioprotective strategies.

Cite This Study

Narine Sarvazyan (1996) studied this question.

synapsesocial.com/papers/6a70a6aa35aa2c282ce1f9dc https://doi.org/10.1152/ajpheart.1996.271.5.h2079

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Implication

Supports oxidative mechanism of doxorubicin cardiotoxicity in rat myocytes; leaves open clinical translation and cardioprotective strategies.

Visualization of doxorubicin-induced oxidative stress in isolated cardiac myocytes

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Visualization of doxorubicin-induced oxidative stress in isolated cardiac myocytes

Key Points

Structured PICO

Discussion

Implication

Cite This Study

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