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Published on: August 9, 2019
Myeloid-Derived Suppressor Cells in Sepsis.
Irene T Schrijver1, Charlotte Théroude1, Thierry Roger1
1Infectious Diseases Service, Department of Medicine, Lausanne University Hospital, Epalinges, Switzerland.
Myeloid-derived suppressor cells (MDSCs) are key players in sepsis. High MDSC levels correlate with worse outcomes, making them promising targets for new sepsis treatments.
Area of Science:
- Immunology
- Cell Biology
- Pathogenesis
Background:
- Myeloid-derived suppressor cells (MDSCs) are immature myeloid cells with potent immunosuppressive functions.
- MDSCs accumulate during inflammatory conditions, including cancer, infectious diseases, and sepsis.
Purpose of the Study:
- To review the mechanisms of MDSC expansion and immunosuppression.
- To discuss the role of MDSCs in sepsis pathogenesis.
- To evaluate MDSCs as biomarkers and therapeutic targets for sepsis.
Main Methods:
- Review of preclinical and clinical studies on MDSCs in sepsis.
- Analysis of mechanisms underlying MDSC function and expansion.
- Correlation of MDSC levels with clinical outcomes in sepsis patients.
Main Results:
- MDSC expansion is linked to sepsis pathogenesis.
- Elevated blood MDSC proportions in patients correlate with clinical worsening, increased nosocomial infections, and mortality.
- MDSCs are rarely detected in healthy individuals.
Conclusions:
- MDSCs represent attractive biomarkers for sepsis prognosis.
- Targeting MDSC-mediated immunosuppression or depleting MDSCs may improve sepsis outcomes.
- Further research into MDSC biology is crucial for developing personalized sepsis therapies and precision immunotherapy.
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