title: Mechanisms of immune injury and heterogeneity of bone marrow hematopoietic cells island in patients with auto-immuno-related hematocytopenia.
abstract: Because of environmental pollution more and more people are suffered with auto-immuno-related hematocytopenia (AIRH). Serum IL-12, IL-17, and IFN-γ levels were detected by ELISA and lymphocyte subsets were analyzed by flow cytometry. Peroxidase (POX) and HLA-DR of immune cells were detected by cytochemical and immunochemical staining. Cells expressing anti-human IgG, FcγR II, MR, and other molecules in HI were detected by immunofluorescence. Serum IL-12, IL-17, and IFN-γ levels of patients were significantly higher than control group. Lymphocyte subsets of patients showed that the percentages of CD19+ B cells and CD3+ CD8+ T cell in peripheral blood were both significantly elevated. HI were mainly classified into three types, in these three types of hematopoietic cells island, peroxidase, and HLA-DR expression varied. Hematopoietic cells with pathological changes expressed anti-human IgG. The immunocytes with different levels of immunomolecules adhered captured and devoured abnormal hematopoietic cells. Immune cells expressed IL-12, IL-17A, and IL-17RA, leading to inflammatory injury of hematopoietic cells. HI destroys cells which connect auto-antibodies. Immune cells in HI express a variety of immune molecules, promote cell immune responses, and amplify the inflammatory reaction by ADCC effect or phagocytosis. These ultimately destruct directly and damage indirectly hematopoietic cells.
authors.affiliation: a Department of Tumor Research and Treatment Centricity , People's Liberation Army No. 148 Hospital , Zibo , Shandong Province , China.
authors.forename: LiFei
authors.initials: L
authors.lastname: Sun
authors.forename: QiangQiang
authors.initials: Q
authors.lastname: Wu
authors.forename: Bing
authors.initials: B
authors.lastname: Han
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: ZhiHong
authors.initials: Z
authors.lastname: Sun
authors.forename: JinBiao
authors.initials: J
authors.lastname: Zhang
authors.forename: LiCai
authors.initials: L
authors.lastname: An
mesh_terms: D000328:Adult; D000368:Aged; D001327:Autoimmune Diseases / Q000097:blood / Q000276:immunology / Q000473:pathology*; D005260:Female; D006412:Hematopoietic Stem Cells / Q000276:immunology* / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010198:Pancytopenia / Q000097:blood / Q000276:immunology* / Q000473:pathology*; D055815:Young Adult
keywords: FcγR II; auto-immuno-related hematocytopenia; hematopoietic cells island; lymphocyte subsets; mannose receptor