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Production of intracellular and extracellular interleukin-1 alpha and interleukin-1 beta by peripheral blood monocytes from patients with connective tissue diseases. 1991

S Aotsuka, and K Nakamura, and T Nakano, and M Kawakami, and M Goto, and M Okawa-Takatsuji, and M Kinoshita, and R Yokohari
Clinical Research Institute, National Medical Center, Tokyo, Japan.

An enzyme linked immunosorbent assay (ELISA) was used to estimate the production of intracellular and extracellular interleukin-1 (IL-1) alpha and beta by peripheral blood monocytes from 26 patients with various connective tissue diseases (CTD), including 19 with systemic lupus erythematosus, four with progressive systemic sclerosis, two with mixed connective tissue disease, and one with Sjögren's syndrome. Monocytes obtained from patients with CTD with serum antibodies to nuclear ribonucleoprotein (nRNP) released significantly higher concentrations of extracellular IL-1 alpha and IL-1 beta, whereas intracellular IL-1 alpha and IL-1 beta production was similar to that by monocytes from patients with CTD without antibodies to nRNP. Furthermore, the concentrations of extracellular IL-1 alpha correlated significantly with those of extracellular IL-1 beta. There was no significant correlation between the concentrations of extracellular and intracellular IL-1 alpha, and those of extracellular and intracellular IL-1 beta, indicating that synthesis and secretion of IL-1 by human monocytes may be two distinct biological events. It seems that enhanced extracellular release of both IL-1 alpha and IL-1 beta contributes to the excessive anti-nRNP production in CTD.

UI MeSH Term Description Entries
D007375 Interleukin-1 A soluble factor produced by MONOCYTES; MACROPHAGES, and other cells which activates T-lymphocytes and potentiates their response to mitogens or antigens. Interleukin-1 is a general term refers to either of the two distinct proteins, INTERLEUKIN-1ALPHA and INTERLEUKIN-1BETA. The biological effects of IL-1 include the ability to replace macrophage requirements for T-cell activation. IL-1,Lymphocyte-Activating Factor,Epidermal Cell Derived Thymocyte-Activating Factor,Interleukin I,Macrophage Cell Factor,T Helper Factor,Epidermal Cell Derived Thymocyte Activating Factor,Interleukin 1,Lymphocyte Activating Factor
D008180 Lupus Erythematosus, Systemic A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterized principally by involvement of the skin, joints, kidneys, and serosal membranes. It is of unknown etiology, but is thought to represent a failure of the regulatory mechanisms of the autoimmune system. The disease is marked by a wide range of system dysfunctions, an elevated erythrocyte sedimentation rate, and the formation of LE cells in the blood or bone marrow. Libman-Sacks Disease,Lupus Erythematosus Disseminatus,Systemic Lupus Erythematosus,Disease, Libman-Sacks,Libman Sacks Disease
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009000 Monocytes Large, phagocytic mononuclear leukocytes produced in the vertebrate BONE MARROW and released into the BLOOD; contain a large, oval or somewhat indented nucleus surrounded by voluminous cytoplasm and numerous organelles. Monocyte
D003240 Connective Tissue Diseases A heterogeneous group of disorders, some hereditary, others acquired, characterized by abnormal structure or function of one or more of the elements of connective tissue, i.e., collagen, elastin, or the mucopolysaccharides. Connective Tissue Disease,Disease, Connective Tissue,Diseases, Connective Tissue
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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