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Human osteoclasts, in contrast to mononuclear phagocytes, are known to express a well-defined restricted range of myeloid antigens. To determine whether these antigenic differences are present in other species, we examined the immunophenotype of chicken and rabbit osteoclasts, macrophages, macrophage polykaryons, and monocytes and compared them with similarly derived and cultured human cells. Human, rabbit, and avian osteoclasts reacted with monoclonal antibodies against human beta 1 integrins (CD29, CD49b, CD49d), beta 3 integrins (CD51, CD61), as well as human macrophage-associated antigen CD68. Avian osteoclasts also reacted for CD11a/18 and CD14 which are not present on human osteoclasts. Avian and mammalian monocytes, macrophages, and macrophage polykaryons expressed all the above antigens. Both avian and human macrophage polykaryons produced by culture of peritoneal macrophages reacted with anti-CD51 antibodies indicating that expression of the vitronectin receptor alone does not distinguish between these cells in vitro.

Original publication

DOI

10.1007/bf00296773

Type

Journal article

Journal

Calcified tissue international

Publication Date

05/1992

Volume

50

Pages

427 - 432

Addresses

Nuffield Department of Pathology, University of Oxford, John Radcliffe Hospital, Headington, U.K.

Keywords

Monocytes, Macrophages, Osteoclasts, Phagocytes, Animals, Chickens, Rabbits, Humans, Antigens, CD14, Integrins, Antigens, CD18, Antigens, CD, Antigens, CD11, Antigens, Differentiation, Myelomonocytic, Antibodies, Monoclonal, Immunophenotyping, Cell Communication, Species Specificity