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Updated: Aug 9, 2026
10:31
Lymphocyte Isolation from Human Skin for Phenotypic Analysis and Ex Vivo Cell Culture
Published on: April 8, 2016
[Recent data and current studies of epidermal Langerhans cells]
1INSERM, Peau Humaine et Immunité, Hôpital Edouard-Herriot, Lyon, France.
Pathologie-Biologie
|December 1, 1995
Summary
Langerhans cells (LC) initiate skin immune responses by presenting antigens to lymphocytes. Research explores their role in immune reactions and potential as a key component in future vaccine strategies.
Area of Science:
- Immunology
- Dermatology
- Cell Biology
Context:
- Skin acts as both a target and initiator of self-immune reactions.
- Langerhans cells (LC), comprising 2-5% of epidermal cells, are crucial antigen-presenting cells (APCs).
- LCs process and present antigens to lymphocytes, initiating immune responses and playing a role in immuno-allergic reactions.
Purpose:
- To investigate the function and potential of Langerhans cells (LCs) in immune responses.
- To explore the role of TNF alpha and GM-CSF in LC generation from CD34+ precursors.
- To understand the maturation and migration of LCs from epithelia to lymph nodes.
Summary:
- Langerhans cells (LCs) originate from bone marrow, colonize epithelia, and function as APCs, migrating to lymph nodes to sensitize T cells.
- In vitro studies show LC maturation, mimicking in vivo migration and enhanced accessory function, a process potentially clarified by animal models.
- Despite purification challenges and lack of immortalized cell lines, LCs represent an ideal APC dendritic cell model.
Impact:
- LCs are pivotal in antigenic stimulations and immuno-allergic reactions.
- Understanding LC mechanisms could clarify immigration and emigration processes in epithelia for immune functions.
- LCs are anticipated to play a pivotal role in future vaccinal strategies.
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