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Key Documents

MAK161

Sigma-Aldrich

Multidrug Resistance Assay Kit

(Fluorometric MDR Assay)

Synonym(s):

MDR Assay

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About This Item

UNSPSC Code:
12161503
NACRES:
NA.84

usage

(Fluorometric MDR Assay)

application(s)

pharmaceutical

detection method

fluorometric

relevant disease(s)

cancer

storage temp.

−20°C

Gene Information

General description

Acquired resistance to chemotherapy drugs, multidrug resistance or MDR, is a major contributor to treatment failure for many types of cancers. MDR is typically associated with the increased expression of two ATP-dependent drug efflux pumps, P-Glycoprotein (P-gp or MDR1) and the Multidrug Resistance-Associated Protein (MRP1). These pumps actively expel chemotherapeutic agents, typically hydrophobic amphipathic natural products, from the cytoplasm to exterior of the cell.

This kit is utilizes a hydrophobic fluorescent dye molecule to assess MDR activity in cells. This dye rapidly penetrates cell membranes and becomes trapped resulting in an increase in fluorescence intensity (λex = 490/λem = 525 nm). In cells expressing MDR transporters, the dye is rapidly extruded by the transporters, resulting in decreased fluorescence intensity.

Features and Benefits

Compatible with high-throughput handling systems.

Suitability

This kit is suitable for the screening of MDR pump inhibitors or for identifying cell lines with high MDR activity.

Principle

This kit is utilizes a hydrophobic fluorescent dye molecule to assess MDR activity in cells. This dye rapidly penetrates cell membranes and becomes trapped resulting in an increase in fluorescence intensity (λEx = 490/λEm = 525 nm). In cells expressing MDR transporters, the dye is rapidly extruded by the transporters, resulting in decreased fluorescence intensity.

Storage Class Code

10 - Combustible liquids


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Drug resistance in cancer: an overview.
Housman G, et al.
Cancer, 6(3), 1769-1792 (2014)
Mechanisms and insights into drug resistance in cancer.
Zahreddine H and Katherine B
Frontiers in Pharmacology, 4, 28-28 (2013)
Non-coding polymorphisms in nucleotide binding domain 1 in ABCC1 gene associate with transcript level and survival of patients with breast cancer.
Kunicka T, et al.
PLoS ONE, 9(7), e101740-e101740 (2014)

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