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Preparation of Myeloid Derived Suppressor Cells (MDSC) from Naive and Pancreatic Tumor-bearing Mice using Flow Cytometry and Automated Magnetic Activated Cell Sorting (AutoMACS)

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Myeloid-derived suppressor cells: a double-edged sword?

Agnieszka Pastuła¹, Janusz Marcinkiewicz

¹Department of Immunology, Jagiellonian University Medical College, Krakow, Poland. agnieszka.pastula@wp.pl

International Journal of Experimental Pathology

|February 15, 2011

Summary

Myeloid-derived suppressor cells (MDSCs) typically suppress immune responses. However, new research indicates these cells can also stimulate immunity, potentially impacting cancer immunity.

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Area of Science:

Immunology
Cell Biology
Cancer Research

Background:

Myeloid-derived suppressor cells (MDSCs) are recognized for their potent immunosuppressive functions.
Their role in regulating adaptive and innate immunity is well-established.
MDSCs are crucial in maintaining immune homeostasis and influencing disease pathogenesis.

Purpose of the Study:

To investigate the dual role of myeloid-derived suppressor cells (MDSCs).
To explore the potential immunostimulatory functions of MDSCs.
To re-evaluate the impact of MDSCs on antitumour immunity.

Main Methods:

Analysis of existing literature on MDSC functions.
Review of experimental data demonstrating varied MDSC activities.
Comparative analysis of immunosuppressive versus immunostimulatory contexts.

Main Results:

Emerging evidence suggests MDSCs exhibit context-dependent immunostimulatory properties.
This challenges the long-held view of MDSCs as solely suppressive.
The heterogeneous nature of MDSCs contributes to their diverse functions.

Conclusions:

Myeloid-derived suppressor cells (MDSCs) possess a more complex functional repertoire than previously understood.
Their potential immunostimulatory role offers new therapeutic avenues for enhancing antitumour immunity.
Further research is needed to harness MDSC plasticity for cancer treatment.