Related Experiment Video

Updated: Oct 5, 2026

Expression, Detergent Solubilization, and Purification of a Membrane Transporter, the MexB Multidrug Resistance Protein
10:43

Expression, Detergent Solubilization, and Purification of a Membrane Transporter, the MexB Multidrug Resistance Protein

Published on: December 3, 2010

Molecular genetic analysis and biochemical characterization of mammalian P-glycoproteins involved in multidrug

C A Hrycyna1

  • 1Department of Chemistry, Purdue University, 1393 Brown Building, West Lafayette, IN 47907-1393, USA. hrycyna@purdue.edu

Seminars in Cell & Developmental Biology
|June 29, 2001
PubMed

Insights

Multidrug resistance in human cancers is often caused by P-glycoprotein, an ATP-dependent pump. Understanding its function through structure-function analysis is key to developing new cancer treatments.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Many human cancers exhibit intrinsic or acquired resistance to conventional chemotherapy.
  • Overexpression of P-glycoprotein, a 170 kDa plasma membrane ATP-dependent pump, is a primary mechanism driving this multidrug resistance.
  • P-glycoprotein belongs to the ATP binding cassette (ABC) superfamily of membrane transporters.

Purpose of the Study:

  • To review the application of structure-function analyses in understanding the mechanism of action of mammalian P-glycoproteins.
  • To highlight the importance of elucidating P-glycoprotein's function for developing novel cancer therapies.

Main Methods:

  • Focus on structure-function analyses of mammalian P-glycoproteins.
  • Review of existing literature on P-glycoprotein mechanisms.

Main Results:

  • Structure-function analyses provide insights into the operational mechanism of P-glycoprotein.
  • Detailed understanding of P-glycoprotein's role in multidrug resistance.

Conclusions:

  • Elucidating the precise mechanism of P-glycoprotein is crucial for overcoming drug resistance in cancer.
  • This knowledge is essential for designing innovative therapeutic strategies against human cancers.

More Related Videos

Small-Scale Plasma Membrane Preparation for the Analysis of Candida albicans Cdr1-mGFPHis09:44

Small-Scale Plasma Membrane Preparation for the Analysis of Candida albicans Cdr1-mGFPHis

Published on: June 13, 2021

Related Concept Videos

Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters01:16

Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters

The pharmacogenetics of drug transporters is increasingly recognized as a critical factor influencing interindividual variability in drug absorption, distribution, and elimination. These membrane-bound proteins regulate drugs' movement across cellular barriers by actively pumping them out (efflux) or facilitating their uptake (influx). Among the major transporter families, ATP-binding cassette (ABC) and solute carrier (SLC) transporters play particularly prominent roles. Genetic polymorphisms...
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...