Journal Article

Enhancing immunotherapy response in melanoma: myeloid-derived suppressor cells as a therapeutic target

Lasser, Samantha, Ozbay Kurt, Feyza Gul, Utikal, Jochen, Arkhypov, Ihor, Umansky, Viktor

2023

Overview

Despite the remarkable success of immune checkpoint inhibitors (ICIs) in melanoma treatment, resistance to them remains a substantial clinical challenge. Myeloid-derived suppressor cells (MDSCs) represent a heterogeneous population of myeloid cells that can suppress antitumor immune responses mediated by T and natural killer cells and promote tumor growth. They are major contributors to ICI resistance and play a crucial role in creating an immunosuppressive tumor microenvironment. Therefore, targeting MDSCs is considered a promising strategy to improve the therapeutic efficacy of ICIs. This Review describes the mechanism of MDSC-mediated immune suppression, preclinical and clinical studies on MDSC targeting, and potential strategies for inhibiting MDSC functions to improve melanoma immunotherapy.

• Publisher: American Society for Clinical Investigation
• Subject: Antitumor activity / Apoptosis / Biomedical research / Chemokines / Cytokines / Development and progression / Drug resistance / Drug therapy / Granulocytes / Growth factors / Health aspects / Humans / Hypoxia / Immune checkpoint inhibitors / Immune response / Immunotherapy / Killer Cells, Natural - pathology / Kinases / Melanoma / Melanoma - drug therapy / Melanoma - pathology / MicroRNAs / Myeloid cells / Myeloid-Derived Suppressor Cells / Natural killer cells / Neutrophils / Physiological aspects / Proteins / Recruitment / Review / Skin cancer / Suppressor cells / Therapeutic targets / Transcription factors / Treatment resistance / Tumor Microenvironment / Tumors