Assay for multi-drug resistance

Chemistry: analytical and immunological testing – Involving immune complex formed in liquid phase

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436546, 436800, 436808, 435975, G01N 33536, G01N 33533

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active

058720146

ABSTRACT:
The invention generally features a rapid, quantitative method of diagnosing multi-drug resistance in a patient. The method involves (a) exposing cells of a biological specimen to a calcein compound, the calcein compound becoming fluorescent in the cell; and (b) measuring calcein compound accumulating in the specimen cells relative to control cells, reduced calcein accumulation in specimen cells relative to control cells indicating the presence of multi-drug resistance in the biological specimen. The method is useful for diagnosing multi-drug resistance in patients undergoing drug therapy, e.g., chemotherapeutic or antibiotic therapy.

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