title: Virus-associated deficiencies in the mitogen reactivity in celebes black macaques (Macaca nigra).
abstract: Celebes black macaques (Macaca nigra) with a history of diabetes mellitus, recurrent bacterial and protozoal infections, diarrhea, anemia, weight loss, anorexia, and a high mortality were studied to determine their immune status. Two groups of monkeys, healthy and unhealthy, were formed on the basis of a clinical assessment. The proliferative response and the pokeweed-mitogen-induced polyclonal IgG response of peripheral blood mononuclear cells of unhealthy monkeys were significantly less than the responses of healthy monkeys. The percentage of HLA-DR+ cells varied greatly in unhealthy monkeys. The OKT4/OKT8 ratios of unhealthy monkeys were generally greater than the ratios of healthy monkeys. Unhealthy monkeys usually had smaller percentages of OKT8+ cells than did healthy monkeys. The two groups of monkeys were examined for the presence of a syncytial forming retrovirus by a coculture assay involving Raji cells, a human B lymphoblastoid cell line. A type D retrovirus was detected in the unhealthy group but not in the healthy group. Retroperitoneal fibromatosis was detected in several monkeys in the unhealthy group.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000209:etiology / Q000276:immunology / Q000662:veterinary; D000818:Animals; D000911:Antibodies, Monoclonal; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000032:analysis; D007074:Immunoglobulin G / Q000096:biosynthesis; D007153:Immunologic Deficiency Syndromes / Q000209:etiology / Q000276:immunology / Q000662:veterinary*; D008213:Lymphocyte Activation; D008251:Macaca / Q000276:immunology*; D008934:Mitogens / Q000494:pharmacology; D008992:Monkey Diseases / Q000209:etiology* / Q000276:immunology; D012190:Retroviridae / Q000302:isolation & purification; D012192:Retroviridae Infections / Q000276:immunology / Q000662:veterinary; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
chemical_list: D000911:Antibodies, Monoclonal; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II; D007074:Immunoglobulin G; D008934:Mitogens