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Updated: Jun 28, 2026
Characterization of Human Monocyte Subsets by Whole Blood Flow Cytometry Analysis
Published on: October 17, 2018
Detection of ABCC2, CYP2B6 and CYP3A4 in human peripheral blood mononuclear cells using flow cytometry
N J Liptrott1, S H Khoo, D J Back
1Department of Pharmacology and Therapeutics, The University of Liverpool, 70 Pembroke Place, Liverpool, L69 3GF, UK. neill.liptrott@liv.ac.uk
Abstract:
ABCC2 has a wide tissue distribution and can mediate the efflux of a number of therapeutic compounds from cells and contribute to potential treatment failure. Its diverse expression and ability to efflux a number of substrates imply a number of physiological and pharmacological roles. CYP2B6 and CYP3A4 are responsible for the metabolism of a number of therapeutic compounds. Reports on the expression of these proteins in various cells and tissues have been contradictory mainly due to differences in experimental approach and cell type studied. With the advances in commercially available antibodies we describe here a simplified technique for the detection of ABCC2, CYP2B6 and CYP3A4 in human peripheral blood mononuclear cells (PBMC) by flow cytometry. Results are expressed as mean increase in fluorescence compared to isotypically matched controls. Using these assays we confirmed the expression of these proteins in human PBMC. These methods are rapid and reproducible and have potential use for both in vitro and clinical applications.
Insights
This study presents a simplified flow cytometry method to detect ABCC2, CYP2B6, and CYP3A4 proteins in human peripheral blood mononuclear cells (PBMC). This technique aids in understanding drug transport and metabolism, potentially improving treatment outcomes.
Area of Science:
- Pharmacology
- Cell Biology
- Biochemistry
Background:
- ABCC2 mediates drug efflux, potentially causing treatment failure.
- CYP2B6 and CYP3A4 are key drug-metabolizing enzymes.
- Previous studies on their expression in cells have yielded conflicting results.
Purpose of the Study:
- To develop a simplified flow cytometry technique for detecting ABCC2, CYP2B6, and CYP3A4 in human peripheral blood mononuclear cells (PBMC).
- To confirm the expression of these proteins in human PBMC using the developed assay.
Main Methods:
- Utilized advances in commercially available antibodies for protein detection.
- Employed flow cytometry for analyzing protein expression in human PBMC.
- Quantified protein levels by measuring the mean increase in fluorescence compared to controls.
Main Results:
- Successfully established a simplified and reproducible flow cytometry assay for ABCC2, CYP2B6, and CYP3A4 detection.
- Confirmed the expression of these proteins in human PBMC.
- The developed method is rapid and suitable for various applications.
Conclusions:
- The developed flow cytometry method provides a reliable way to detect ABCC2, CYP2B6, and CYP3A4 in human PBMC.
- This technique has potential applications in both in vitro research and clinical settings.
- Improved understanding of drug transporter and metabolizing enzyme expression in PBMC.
