title: [Flow cytometric measurement of C3b receptors (CR1) on human erythrocytes. II. E-CR1 levels in patients with various diseases and their correlation with B-CR1].
abstract: Using a novel technique previously described for measuring erythrocyte C3b receptors (E-CR1) by means of flow cytometry, we studied E-CR1 levels in patients with various diseases. We also measured C3b receptors of B cells (B-CR1) by flow cytometry, and studied the correlation between E-CR1 levels and B-CR1 levels. We have found; 1) Decreased E-CR1 levels were seen in patients with active SLE, acute leukemia, and congenital immunodeficiency syndrome. E-CR1 levels in patients with IgA nephropathy, membranoproliferative glomerulonephritis, anaphylactoid purpura, infectious mononucleosis, and viral pneumonia were statistically higher than those in normal controls. 2) Decreased E-CR1 levels in some patients with SLE were not thought to be inherited, but the E-CR1 levels of patients with diseases other than SLE appeared to be regulated in an autosomal co-dominant form of inheritance. 3) A negative correlation was observed between E-CR1 levels and B-CR1 levels in both patients with SLE and normal controls.
authors.forename: Y
authors.initials: Y
authors.lastname: Itoh
authors.forename: Y
authors.initials: Y
authors.lastname: Fukunaga
authors.forename: M
authors.initials: M
authors.lastname: Yamamoto
mesh_terms: D000293:Adolescent; D000328:Adult; D015551:Autoimmunity; D001402:B-Lymphocytes / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D004912:Erythrocytes / Q000032:analysis*; D005434:Flow Cytometry; D006801:Humans; D007223:Infant; D008180:Lupus Erythematosus, Systemic / Q000276:immunology; D008875:Middle Aged; D011951:Receptors, Complement / Q000097:blood*; D017463:Receptors, Complement 3b
chemical_list: D011951:Receptors, Complement; D017463:Receptors, Complement 3b