Cited by 120Histiocytic Disorders and TreatmentsImmunotherapy and Immune ResponsesImmune responses and vaccinations

Langerhans cell origin and regulation

Open access
Collin, Matthew, Milne, Paul·2016·Current Opinion in Hematology

Abstract

PURPOSE OF REVIEW: This article summarizes recent research on the ontogeny of Langerhans cells and regulation of their homeostasis in quiescent and inflamed conditions. RECENT FINDINGS: Langerhans cells originate prenatally and may endure throughout life, independently of bone marrow-derived precursors. Fate-mapping experiments have recently resolved the relative contribution of primitive yolk sac and fetal liver hematopoiesis to the initial formation of Langerhans cells. In postnatal life, local self-renewal restores Langerhans cell numbers following chronic or low-grade inflammatory insults. However, severe inflammation recruits de-novo bone marrow-derived precursors in two waves; a transient population of classical monocytes followed by uncharacterized myeloid precursors that form a stable self-renewing Langerhans cell network as inflammation subsides. Human CD1c⁺ dendritic cells have Langerhans cell potential in vitro, raising the possibility that dendritic cell progenitors provide the second wave. Langerhans cell development depends upon transforming growth factor beta receptor signaling with distinct pathways active during differentiation and homeostasis. Langerhans cell survival is mediated by multiple pathways including mechanistic target of rapamycin and extracellular signal-regulated kinase signaling, mechanisms that become highly relevant in Langerhans cell neoplasia. SUMMARY: The study of Langerhans cells continues to provide novel and unexpected insights into the origin and regulation of myeloid cell populations. The melding of macrophage and dendritic cell biology, shaped by a unique habitat, is a special feature of Langerhans cells.

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Crossref · 10.1097/moh.0000000000000202

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65 of 65 references verified0 citation errors · 0 not checkable

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  • Langerhans cells are a unique cell population to the skin organ, where fate-mapping of macrophages demonstrates in situ proliferation to Langerhans cells in the skin during embryonic development.

    “Langerhans cells are a unique cell population to the skin organ, where fate‐mapping of macrophages demonstrates in situ proliferation to Langerhans cells in the skin during embryonic development.[ 78 , 79 , 80 , 81 ]”

    From Coordinated Development of Immune Cell Populations in Vascularized Skin Organoids from Human Induced Pluripotent Stem Cells (2025) · cites this paper as [78]

    The section “A primitive origin of LCs from yolk sac macrophages” says fate-mapping experiments showed primitive macrophages proliferating in situ and giving rise to Langerhans cells. But the Introduction says Langerhans cells also reside in the corneal, buccal, gingival and genital mucosae, so they are not unique to the skin. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Langerhans cell development is mechanistically driven by interleukin-34 release via macrophage-colony stimulating factor receptor.

    “Mechanistically, this is driven by interleukin‐34 release via macrophage‐colony stimulating factor receptor.[ 78 ]”
  • Mature human SKOs resemble human fetal craniofacial skin at 18-week of gestation.

    “Notably, this observation aligns with previous studies that mature human SKOs resemble human fetal craniofacial skin at 18‐week of gestation.[ 26 , 78 ]”

    From Coordinated Development of Immune Cell Populations in Vascularized Skin Organoids from Human Induced Pluripotent Stem Cells (2025) · cites this paper as [78]

    The ‘Bone marrow independence of human LCs’ section says human Langerhans cells are fully formed at around 18–24 weeks of gestation. It does not compare mature human SKOs with fetal craniofacial skin. Searches for skin organoids, craniofacial skin, and the 18-week comparison found no passage addressing that claim; page numbers were not available in our copy. (LLM, conf=0.76)

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Research works printed but not linked: 1

  1. [60]MacDonald KPA Munster D Clark G Vuckovic S Hart DNJ Mason D Peripheral blood dendritic cell subset analysis Leucocyte Typing VII 2002 315 319 Oxford University Press

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Authors
Collin, M., & Milne, P.
Affiliations
Newcastle University (GB)
Corresponding author
Collin, Matthew
Venue
Current Opinion in Hematology
Published
2016-01
Volume
23
Issue
1
Pages
28-35
ISSN
1065-6251 (ISSN-L)
OpenAlex
W2409593987
Cited by
120
References
65
Citations by year
2026: 8 · 2025: 10 · 2024: 10 · 2023: 8 · 2022: 12 · 2021: 16 · 2020: 14 · 2019: 13 · 2018: 12 · 2017: 10 · 2016: 6
FWCI
1.15
Type
journal article
Language
en
Open access
Locations
  • Current Opinion in Hematology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Newcastle University ePrints (Newcastle Univesity)
Funders
  • Histiocytosis Association
  • Wellcome Trust
Topics
  • Health Sciences › Medicine › Physiology › Histiocytic Disorders and Treatments
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
Langerhans cells, fetal liver hematopoiesis, yolk sac hematopoiesis, self-renewal, inflammation, classical monocytes, myeloid precursors, CD1c+ dendritic cells, dendritic cell progenitors, mTOR signaling, ERK signaling, myeloid cell development
MeSH terms
Cell Self Renewal, Animals, Cell Differentiation, Fetus, Histiocytosis, Langerhans-Cell, Homeostasis, Humans, Inflammation, Langerhans Cells, Liver, Macrophages, Monocytes, Stem Cells, Yolk Sac, Cell Lineage

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