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Updated: Jun 25, 2026

Expression, Detergent Solubilization, and Purification of a Membrane Transporter, the MexB Multidrug Resistance Protein
Published on: December 3, 2010
Multidrug resistance 1 gene (P-glycoprotein 170): an important determinant in gastrointestinal disease?
G-T Ho1, F M Moodie, J Satsangi
1University Department of Medical Sciences, Western General Hospital, Edinburgh, UK. gho@ed.ac.uk
Abstract:
The interface between luminal contents and intestinal epithelium constitutes the largest area of interaction between the host and the environment. There is now strong evidence that the gene product of the multidrug resistant pump (MDR) plays a critical role in host-bacterial interactions in the gastrointestinal tract and maintenance of intestinal homeostasis. This review highlights the efflux mechanism in the intestinal epithelium which is mediated by the multidrug resistant pump, also known as P-glycoprotein 170. Current studies promise to provide further insights into the contribution of the MDR1 gene in the pathogenesis of inflammatory and malignant disorders of the gastrointestinal tract.
Insights
The multidrug resistant (MDR) pump, or P-glycoprotein 170, is crucial for gut health and host-bacterial interactions. Understanding its role in the intestinal epithelium may reveal insights into gastrointestinal diseases.
Area of Science:
- Gastroenterology
- Molecular Biology
- Immunology
Background:
- The intestinal epithelium is a key interface for host-environment interactions.
- The multidrug resistant (MDR) pump, also known as P-glycoprotein 170, is implicated in host-bacterial interactions and gut homeostasis.
Purpose of the Study:
- To review the efflux mechanism mediated by the MDR pump in the intestinal epithelium.
- To highlight the role of the MDR1 gene in gastrointestinal tract pathogenesis.
Main Methods:
- Literature review of current studies on MDR pump function in the gastrointestinal tract.
- Analysis of the MDR1 gene's contribution to intestinal homeostasis and disease.
Main Results:
- The MDR pump facilitates efflux mechanisms within the intestinal epithelium.
- Evidence suggests the MDR1 gene product is critical for host-bacterial interactions and maintaining intestinal balance.
Conclusions:
- The MDR pump plays a significant role in intestinal homeostasis.
- Further research into the MDR1 gene may offer insights into inflammatory and malignant gastrointestinal disorders.
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