Canine epidermal langerhans cells express alpha and gamma but not beta chains of high-affinity IgE receptor. 2005

M Bonkobara, and F Miyake, and H Yagihara, and O Yamada, and D Azakami, and T Washizu, and P D Cruz, and K Ariizumi
Department of Veterinary Clinical Pathology, Nippon Veterinary and Animal Science University, Musashino-shi, Tokyo 180-8602 Japan. bonkobara@nvau.ac.jp

Epidermal Langerhans cells (LC) express a high-affinity receptor for IgE (FcepsilonRI), consisting of two chains (alpha and gamma chains) in humans that allows LC to perform Fc receptor-mediated uptake of allergens. We found that canine LC express alpha and gamma chains but not beta chain of FcepsilonRI, identical to human but not to mouse LC, which do not express functional FcepsilonRI (only gamma chain is expressed). This finding indicates that canine LC have FcepsilonRI-mediated function similar to or identical to human LC, raising the possibility that canine species provides a better model than mouse to understand the pathogenesis of human atopic dermatitis and investigate the therapeutic effect of drugs.

UI MeSH Term Description Entries
D007801 Langerhans Cells Recirculating, dendritic, antigen-presenting cells containing characteristic racket-shaped granules (Birbeck granules). They are found principally in the stratum spinosum of the EPIDERMIS and are rich in Class II MAJOR HISTOCOMPATIBILITY COMPLEX molecules. Langerhans cells were the first dendritic cell to be described and have been a model of study for other dendritic cells (DCs), especially other migrating DCs such as dermal DCs and INTERSTITIAL DENDRITIC CELLS. Langerhans Cell,Dendritic Cells, Dermal,Dendritic Cells, Epidermal,Dendritic Cells, Skin,Dermal Dendritic Cells,Epidermal Dendritic Cells,Skin Dendritic Cells,Cell, Dermal Dendritic,Cell, Epidermal Dendritic,Cell, Langerhans,Cell, Skin Dendritic,Cells, Dermal Dendritic,Cells, Epidermal Dendritic,Cells, Langerhans,Cells, Skin Dendritic,Dendritic Cell, Dermal,Dendritic Cell, Epidermal,Dendritic Cell, Skin,Dermal Dendritic Cell,Epidermal Dendritic Cell,Skin Dendritic Cell
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D004817 Epidermis The external, nonvascular layer of the skin. It is made up, from within outward, of five layers of EPITHELIUM: (1) basal layer (stratum basale epidermidis); (2) spinous layer (stratum spinosum epidermidis); (3) granular layer (stratum granulosum epidermidis); (4) clear layer (stratum lucidum epidermidis); and (5) horny layer (stratum corneum epidermidis).
D000078404 Epidermal Cells Cells from the outermost, non-vascular layer (EPIDERMIS) of the skin. Epidermal Cell,Epidermic Cells,Cell, Epidermal,Cell, Epidermic,Cells, Epidermic,Epidermic Cell
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
D015870 Gene Expression The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION. Expression, Gene,Expressions, Gene,Gene Expressions
D017455 Receptors, IgE Specific molecular sites on the surface of B- and T-lymphocytes which combine with IgEs. Two subclasses exist: low affinity receptors (Fc epsilon RII) and high affinity receptors (Fc epsilon RI). Antigens, CD23,CD23 Antigens,Fc Receptors, epsilon,Fc epsilon Receptor,Fc epsilon Receptors,IgE Receptor,IgE Receptors,Receptors, Fc epsilon,epsilon Fc Receptor,epsilon Fc Receptors,CD 23 Antigens,CD23 Antigen,Fc epsilon RI,Fc epsilon RII,Immunoglobulin E Receptor,Antigen, CD23,Antigens, CD 23,Fc Receptor, epsilon,Receptor, Fc epsilon,Receptor, IgE,Receptor, Immunoglobulin E,Receptor, epsilon Fc,Receptors, epsilon Fc,epsilon RI, Fc,epsilon RII, Fc,epsilon Receptor, Fc,epsilon Receptors, Fc

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