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This review examines the roles of dendritic cell subsets in alopecia areata and their implications for therapy. It highlights the potential of DC-targeted approaches for restoring immune balance.

July 5, 2026

Dendritic cell subsets in alopecia areata: focus on plasmacytoid dendritic cells and Langerhans cells in immune imbalance and therapeutic implications

Key Points

This review examines the roles of dendritic cell subsets in alopecia areata and their implications for therapy. It highlights the potential of DC-targeted approaches for restoring immune balance.
Systematic review of studies from PubMed published until May 2026.
Analysis of the roles of dendritic cell subsets in immune regulation and therapeutic implications.
Evaluation of current therapies and emerging DC-targeted treatment strategies.
Findings suggest dendritic cells play critical roles in hair follicle immune privilege and autoimmune initiation.
DC-targeted therapies could offer more precise treatment options, enhancing immune homeostasis compared to traditional methods.
Emphasis on using single-cell multi-omics technologies for further understanding and developments in DC-targeted therapies.

Abstract

INTRODUCTION: T cells are well-established as the primary effector cells in AA, emerging evidence indicates that dendritic cells (DCs) play important upstream regulatory roles in disease initiation and progression. AREAS COVERED: This narrative review systematically synthesizes relevant studies from the PubMed database published up to May 2026, dissecting the dual roles of distinct DC subsets in maintaining hair follicle immune privilege and driving autoimmune cascade, along with core molecular pathways. It also analyses DC-related mechanisms of standard therapies and emerging DC-targeted therapeutic strategies. EXPERT OPINION: DCs play important roles in the complex immunopathological network of AA. DC-targeted precision therapies hold substantial potential to overcome the limitations of broad immunosuppression and restore long-term follicular immune homeostasis, with single-cell multi-omics technologies enabling further mechanistic and translational advances.

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