Work

NK cells link immune-checkpoint blockade immunotherapy and response in melanoma brain metastases

Year: 2025

Type: article

Abstract: Melanoma brain metastases (BMs) pose a significant clinical challenge. This commentary highlights the emerging understanding of the mechanisms behind immune-checkpoint blockade (ICB) efficacy in melanoma BMs. Specifically, we focus on a recent study by Fife et al, which revealed a non-canonical role for natural killer (NK) cells in shaping the tumor microenvironment following ICB therapy against melanoma BMs. Instead of direct tumor cell killing, this study demonstrates that ICB triggers NK cell chemokine release, CD8 T cell recruitment and enhanced antitumor immunity. The findings from this study highlight that the ICB mechanisms of action are complex and extend beyond the direct interference of inhibitor receptor–ligand interactions between cytotoxic CD8 T cells and tumor cells.

Source: Journal for ImmunoTherapy of Cancer

DOI: 10.1136/jitc-2025-011581

Authors: Gary Kohanbash, Stephen C. Frederico, Itay Raphael

Institution: University of Pittsburgh

Language: English

Topic: Cancer Immunotherapy and Biomarkers

Subfield: Oncology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,490