» Articles » PMID: 38285792

Phenotypic Analysis of Circulating Myeloid Derived Suppressor Cells and Their Subpopulations in Egyptian Females with Breast Cancer: A Single-Centre Case-Control Study

Overview
Specialty Oncology
Date 2024 Jan 29
PMID 38285792
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Myeloid-derived suppressor cells (MDSC) are immature myeloid cells with suppressive function that has been thoroughly documented in the setting of cancer. Our purpose was to evaluate levels of MDSC and their subsets in a cohort of Egyptian patients with breast cancer.

Methods: Evaluation of peripheral blood total MDSC and its subset was done using multicolor flowcytometry in 30 malignant, 10 benign breast tumor patients and 10 healthy control females.

Results: BC patients had higher total MDSC levels compared to controls (p= 0.01) particularly the Monocytic MDSC (M-MDSC) and abnormal MDSC subsets (p = 0.001 and p <0.001, respectively). A tumor size > 2 cm exhibited significantly higher granulocytic MDSCs (G-MDSCs) compared to tumor size < 2 cm (p= 0.02) whereas abnormal MDSCs were significantly higher in patients with a tumor size < 2 cm (p = 0.037).

Conclusion: MDSC and its subsets can be used as a prognostic marker of tumor size as well as a potential targets for treatment in breast cancer patients.

References
1.
Salemme V, Centonze G, Cavallo F, Defilippi P, Conti L . The Crosstalk Between Tumor Cells and the Immune Microenvironment in Breast Cancer: Implications for Immunotherapy. Front Oncol. 2021; 11:610303. PMC: 7991834. DOI: 10.3389/fonc.2021.610303. View

2.
Andersen M . Comment on "Myeloid-derived suppressor cells suppress antitumor immune responses through IDO expression and correlate with lymph node metastasis in patients with breast cancer". J Immunol. 2013; 190(11):5341. DOI: 10.4049/jimmunol.1390023. View

3.
De Cicco P, Ercolano G, Ianaro A . The New Era of Cancer Immunotherapy: Targeting Myeloid-Derived Suppressor Cells to Overcome Immune Evasion. Front Immunol. 2020; 11:1680. PMC: 7406792. DOI: 10.3389/fimmu.2020.01680. View

4.
Ostrand-Rosenberg S, Fenselau C . Myeloid-Derived Suppressor Cells: Immune-Suppressive Cells That Impair Antitumor Immunity and Are Sculpted by Their Environment. J Immunol. 2018; 200(2):422-431. PMC: 5765878. DOI: 10.4049/jimmunol.1701019. View

5.
Hu M, Yao J, Cai L, Bachman K, van den Brule F, Velculescu V . Distinct epigenetic changes in the stromal cells of breast cancers. Nat Genet. 2005; 37(8):899-905. DOI: 10.1038/ng1596. View