Related Experiment Video
Updated: Aug 10, 2026
A Detailed Protocol for Characterizing the Murine C1498 Cell Line and its Associated Leukemia Mouse Model
Published on: October 14, 2016
Immunophenotypic characterization of feline Langerhans cells
I Saint-André Marchal1, C Dezutter-Dambuyant, B J Willett
1Département Pathologie et Clinique des Carnivores Domestiques, Ecole Nationale Vétérinaire de Lyon, Marcy l'Etoile, France.
Insights
Researchers characterized feline Langerhans cells (LC) using monoclonal antibodies. Feline LC share key features with human Langerhans cells, enabling potential animal models for diseases like feline immunodeficiency virus (FIV).
Area of Science:
- Immunology
- Cell Biology
- Veterinary Science
Background:
- Langerhans cells (LC) are critical immune cells in the skin.
- Previous characterization of feline LC was limited.
- Understanding feline LC is important for comparative immunology and disease modeling.
Purpose of the Study:
- To immunophenotypically and ultrastructurally characterize feline Langerhans cells (LC).
- To compare feline LC with human and other animal LC.
- To establish a basis for using feline models in studying immune-related diseases.
Main Methods:
- Utilized a panel of 52 monoclonal antibodies (MAb) against leukocyte antigens.
- Performed immunolabeling on frozen feline skin and lip sections (light microscopy).
- Conducted immunogold labeling on epidermal cell suspensions (electron microscopy).
Main Results:
- Six MAb successfully labeled dendritic cells in feline epidermis and lip epithelium.
- Labeled cells lacked desmosomes and melanosomes but possessed Birbeck granules (BG).
- Feline LC were identified as CD18+, MHC Class II+, CD1a+, vpg5+, and CD4+.
Conclusions:
- Feline LC share significant immunophenotypic and ultrastructural characteristics with human LC.
- This characterization supports the use of feline models for studying diseases like Feline Immunodeficiency Virus (FIV).
- Feline LC research can contribute to developing animal models for human AIDS research.
Abstract:
To carry out the characterization of feline Langerhans cells (LC), first described in 1994, we used a panel of monoclonal antibodies (MAb) known to react with human, canine and feline leukocyte membrane antigens (Ag). The immunolabeling was performed, at light microscope level, on frozen sections of feline skin and labial mucosa using an avidin-biotin-peroxidase technique, and at electron microscope level on epidermal cell suspensions using an immunogold technique. Out of the 52 MAb tested, six labeled basal or suprabasal DC cells in the frozen sections, either in epidermis or lip epithelium: MHM23 (anti-human CD18), CVS20 and vpg3 (respectively anti-canine and feline-major histocompatibility complex class II molecules), vpg5 (anti-feline leukocytes), vpg39 (anti-feline CD4) and Fel5F4 (anti-feline CD1a). These six MAb were used on suspensions, and labeled cells which showed no desmosomes or melanosomes, but contained 'zipper-like' structures similar to Birbeck granules (BG) in their cytoplasm, revealing they were LC. Consequently, feline LC are CD18-positive (CD18+), major histocompatibility complex class II-positive (Class II+), CD1a-positive (CD1a+), vpg5-positive (vg5+) and CD4-positive (CD4+). This immunophenotypic and ultrastructural characterization demonstrates that feline LC share many characteristics with their human counterparts, a fact that will allow us to study the role of feline LC in certain feline diseases such as Feline Immunodeficiency Virus (FIV) infection, since it has been shown that human LC cells are HIV-permissive, and to establish an animal model for human AIDS.
