Identification of bovine dendritic cell phenotype from bovine peripheral blood.
Dendritic cells (DCs) are professional antigen presenting cells, which initiate primary immune responses and also play an important role in the generation of peripheral tolerance. There is no reliable method established for the isolation of bovine peripheral blood DCs, and furthermore, the phenotypes and the functions of bovine DCs are still not fully clear. In the present study, we have attempted to identify bovine peripheral blood DCs by negative-selection. In bovine peripheral blood mononuclear cells (PBMC), we have newly characterized the phenotype of DCs, which is CD11c+/CD172a+. These cells display features of myeloid type DCs. In the thymic medulla, CD11c+/CD172a+ cells were also present and CD1+/CD172a+ cells were additionally detected as a population of DCs. The data suggest that one of the bovine DCs phenotypes from PBMC is derived from myeloid lineages lacking a CD1 molecule, which then drift to several tissues, and that they then may express a CD1 molecule upon their functional differentiation.
Miyazawa
Kohtaro
K
Laboratory of Functional Morphology, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, 981-8555 Sendai, Japan.
Aso
Hisashi
H
Honda
Masashi
M
Kido
Taketomo
T
Minashima
Takeshi
T
Kanaya
Takashi
T
Watanabe
Kouichi
K
Ohwada
Shyuichi
S
Rose
Michael T
MT
Yamaguchi
Takahiro
T
D000818:Animals; D018949:Antigens, CD1 / Q000032:analysis*; D002417:Cattle; D002454:Cell Differentiation; D003713:Dendritic Cells / Q000145:classification* / Q000276:immunology*; D007963:Leukocytes, Mononuclear; D010641:Phenotype
D018949:Antigens, CD1