Related Experiment Video
Updated: Apr 17, 2026

Adoptive Immunotherapy of iNKT Cells in Glucose-6-Phosphate Isomerase G6PI-Induced RA Mice
Published on: January 31, 2020
P-glycoprotein in autoimmune rheumatic diseases.
M García-Carrasco1, C Mendoza-Pinto1, S Macias Díaz2
1Systemic Autoimmune Diseases Research Unit, Hospital General Regional No. 36, Instituto Mexicano del Seguro Social, Puebla, Mexico; Department of Immunology and Rheumatology, Medicine School, Benemérita Universidad Autónoma dePuebla, Puebla, Mexico.
P-glycoprotein (Pgp), a transporter protein, plays a role in drug resistance and autoimmune diseases. MDR-1 gene polymorphisms influence Pgp function, impacting conditions like inflammatory bowel disease and cancer.
Area of Science:
- Biochemistry
- Genetics
- Immunology
Background:
- P-glycoprotein (Pgp) is a 170 kD transmembrane protein encoded by the MDR-1 gene.
- Over 50 MDR-1 gene polymorphisms exist, some linked to diseases like inflammatory bowel disease, cancer, and Parkinson disease.
- Pgp is an ATP-binding cassette transporter superfamily member, functioning as an efflux pump for toxins and various substrates, including drugs.
Purpose of the Study:
- To review the role of P-glycoprotein in autoimmune diseases.
- To analyze Pgp's involvement in treatment failure in systemic lupus erythematosus, rheumatoid arthritis, and psoriantric arthritis.
Main Methods:
- Literature review analyzing the role of Pgp in autoimmune diseases.
- Discussion of Pgp structure, function, and polymorphisms.
- Mention of flow cytometry as a method to measure Pgp activity.
Main Results:
- MDR-1 gene polymorphisms are associated with various diseases.
- Cytokines like IL-2 and TNF-alpha can increase Pgp expression and activity.
- Pgp's role in drug resistance is significant in cancer and HIV treatment, and increasingly recognized in autoimmune diseases.
Conclusions:
- P-glycoprotein is a crucial factor in drug resistance and disease development.
- Understanding Pgp's role is vital for developing effective treatments for autoimmune diseases.
- Further research into Pgp modulation may offer new therapeutic strategies for autoimmune conditions.
Related Concept Videos
Autoimmune Disorders
Concept and Mechanism of Autoimmune Diseases
The immune...
Rheumatic Heart Disease I: Introduction
Genome-wide Association Studies-GWAS
GWAS does not require the identification of the target gene involved in...
Proteoglycans
Gastritis-II: Pathophysiology
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...

