Comparative Evaluation of Magnetic Cell Separation Systems Based on Cell Recovery and CD14 mRNA Enrichment
Abstract
Objective:
Efficient enrichment of CD14-expressing cell fractions is important for downstream applications such as in vitro differentiation and molecular analyses. However, selecting an optimal magnetic separation method can be challenging, particularly when both cell yield and enrichment efficiency must be considered. To address this challenge, we compared two magnetic separation platforms, MACS™ and MojoSort™, that use anti-CD14 antibody-conjugated beads for positive selection, focusing on cell recovery and CD14 mRNA enrichment.
Materials and Methods:
Peripheral blood mononuclear cells (PBMCs) were isolated from eight healthy pediatric donors using Ficoll gradient centrifugation. The performance of two immunomagnetic cell isolation methods utilizing antibody-conjugated magnetic particles, differing in separation format (column-based vs. column-free) was evaluated based on viable cell recovery and relative CD14 gene expression levels measured by RT-qPCR across input and output fractions, including PBMCs, CD14-enriched fractions, and flow-through fractions.
Results:
Column-based method demonstrated higher cell recovery and yielded fractions with significantly greater CD14 mRNA expression compared to column-free system. Both systems produced fractions with increased CD14transcript levels relative to input PBMCs and corresponding flow-through fractions. Cells derived from both methods exhibited comparable expression of macrophage-associated genes following in vitro differentiation.
Conclusion:
Under the tested conditions, Column-based separation system provided higher cell recovery and stronger enrichment of CD14 mRNA expression than the column-free system. These findings highlight differences in enrichment efficiency at the transcript level, while both systems generated cell fractions suitable for downstream molecular and functional applications.
Keywords:
Magnetic, cell, separation CD14, mRNA, enrichment column-free, magnetic, separation, system column-based, magnetic, separation, system RT-qPCRReferences
VOLUME
,
ISSUE
Correspondence
Received
Accepted
Published
Suggested Citation
DOI
License
