[Evaluation of multidrug resistance phenotype on medullary specimens from patients with acute leukemia by determination of nuclear efflux of tetrahydropyranyl-doxorubicin. Approach by confocal laser microspectrofluorometry].

Abstract excerpt

Confocal microspectrofluorometry allows the analysis of fluorescent molecules such as anthracylines in isolated living cells. An optical microscope fitted with a phase-contrast 100 X water-immersion objective enables simultaneous observation of the sample, focusing of the laser beam on the selected cell fraction (nucleus) and collection of the fluorescence emitted from the sample. The resulting intranuclear...

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