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‹ Mon · 8 Jun 2026
Promising but preliminary

Heterogeneity of macrophages in PD-1/PD-L1 inhibitor therapy: a single-cell perspective

Understanding immune cell diversity in checkpoint inhibitor therapy reveals why some patients respond better, pointing toward smarter ways to enhance cancer immunotherapy.

This single-cell perspective review comprehensively synthesizes macrophage subpopulation heterogeneity in the context of checkpoint inhibitor therapy, identifying macrophage diversity as a key determinant of both anti-tumor efficacy and immune toxicity. The review provides a mechanistic framework for macrophage-targeting approaches to improve immunotherapy outcomes.

What the study was

Study design
Narrative review (scRNA-seq data synthesis)
Category
Treatment Innovation
Maturity
Exploratory
Journal
Cellular & Molecular Biology Letters

Why it surfaced

scRNA-seq-based macrophage heterogeneity review with actionable mechanistic insight for immunotherapy optimization. Review design limits score; no primary clinical data.

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