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Published on: September 15, 2023
Myeloid-derived suppressor cells in ovarian cancer: friend or foe?
Monika Walankiewicz1,2, Ewelina Grywalska1, Grzegorz Polak2
1Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, Poland.
Abstract:
Although previous decades contributed to major progress in targeted therapy of many malignancies, the treatment of gynaecological cancers remains a challenging task. In the evidence of rising cancer mortality, the search for new methods of treatment is a dire need. Exploring the mechanisms of interaction between tumour cells and host immune response may allow the introduction of new, effective therapies - not as toxic and far more efficient than conventional methods of cancer treatment. Epithelial ovarian cancer (EOC) is typically diagnosed at advanced stages. Its incidence and mortality rate is high. Powerful diagnostic tools for this kind of cancer are still under investigation. Multiple mechanisms existing in the ovarian tumour network create a specific immunosuppressive microenvironment, in which accumulation of myeloid-derived suppressor cells (MDSCs) may be a critical component for diagnosis and treatment. This review attempts to verify current knowledge on the role of MDSCs in EOC.
Insights
Myeloid-derived suppressor cells (MDSCs) play a critical role in the immunosuppressive microenvironment of epithelial ovarian cancer (EOC). Understanding MDSCs offers new diagnostic and therapeutic strategies for this challenging gynecological malignancy.
Area of Science:
- Gynecological Oncology
- Immunology
- Cancer Biology
Background:
- Gynaecological cancers, particularly epithelial ovarian cancer (EOC), present significant treatment challenges despite advances in targeted therapies.
- High incidence and mortality rates, coupled with late-stage diagnoses, underscore the urgent need for novel therapeutic approaches.
- The tumor microenvironment, especially its immune suppressive aspects, is crucial for understanding cancer progression and developing new treatments.
Purpose of the Study:
- To review current knowledge on the role of myeloid-derived suppressor cells (MDSCs) in epithelial ovarian cancer (EOC).
- To explore the potential of targeting MDSCs for improved diagnosis and treatment of EOC.
- To highlight the significance of immune interactions in overcoming treatment resistance in gynecological cancers.
Main Methods:
- Comprehensive literature review of studies investigating myeloid-derived suppressor cells (MDSCs) in epithelial ovarian cancer (EOC).
- Analysis of mechanisms by which MDSCs contribute to the immunosuppressive tumor microenvironment in EOC.
- Synthesis of evidence regarding the diagnostic and therapeutic implications of MDSCs in EOC.
Main Results:
- Accumulation of myeloid-derived suppressor cells (MDSCs) is a critical component of the immunosuppressive microenvironment in epithelial ovarian cancer (EOC).
- MDSCs contribute to immune evasion and treatment resistance in EOC by suppressing anti-tumor immune responses.
- The presence and activity of MDSCs may serve as potential biomarkers for diagnosis and prognostication in EOC.
Conclusions:
- Myeloid-derived suppressor cells (MDSCs) are significantly implicated in the pathogenesis and progression of epithelial ovarian cancer (EOC).
- Targeting MDSCs represents a promising strategy for developing novel immunotherapies and improving diagnostic tools for EOC.
- Further research into the complex interplay between MDSCs and the EOC tumor microenvironment is essential for advancing gynecological cancer treatment.
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