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Elevated levels of type II soluble tumor necrosis factor receptors in the bronchoalveolar lavage fluids of patients with sarcoidosis. 1997

T Hino, and H Nakamura, and Y Shibata, and S Abe, and S Kato, and H Tomoike
First Department of Internal Medicine, Yamagata University School of Medicine, Japan.

Since tumor necrosis factor (TNF) is known to be involved in granuloma formation in sarcoidosis, and soluble TNF receptors (sTNF-Rs) inhibit TNF action in vivo, we evaluated the levels of sTNF-Rs in the bronchoalveolar lavage fluids (BALF) of 31 subjects using an enzyme-linked immunosorbent assay. Our group consisted of 13 patients with sarcoidosis (7 sarcoidosis patients who received no treatment and 6 who received corticosteroid therapy) and 18 control subjects (11 healthy nonsmokers and 7 asymptomatic smokers). Type II (75-kDa), but not type I (55 kDa) sTNF-R in BALF was elevated significantly in patients with sarcoidosis compared with the healthy nonsmokers (type I: 126.7 +/- 17.6 pg/ml BALF vs 79.4 +/- 16.5 pg/ml BALF, p > 0.05; type II: 98.3 +/- 27.8 pg/ml BALF vs 26.7 +/- 4.9 pg/ml BALF, p < 0.05). Although levels of type I sTNF-R in BALF from sarcoidosis patients were not correlated with any cellular profiles of BALF, concentrations of type II correlated significantly with the numbers of lymphocytes in BALF. We concluded that sTNF-R is a normal constituent of the epithelial lining fluids and that levels of type II sTNF-R are elevated significantly in the BALF from individuals with sarcoidosis. This suggests that sTNF-Rs may influence the local bioactivity of TNF and may also contribute to the pathogenesis of sarcoidosis.

UI MeSH Term Description Entries
D008171 Lung Diseases Pathological processes involving any part of the LUNG. Pulmonary Diseases,Disease, Pulmonary,Diseases, Pulmonary,Pulmonary Disease,Disease, Lung,Diseases, Lung,Lung Disease
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001992 Bronchoalveolar Lavage Fluid Washing liquid obtained from irrigation of the lung, including the BRONCHI and the PULMONARY ALVEOLI. It is generally used to assess biochemical, inflammatory, or infection status of the lung. Alveolar Lavage Fluid,Bronchial Lavage Fluid,Lung Lavage Fluid,Bronchial Alveolar Lavage Fluid,Lavage Fluid, Bronchial,Lavage Fluid, Lung,Pulmonary Lavage Fluid,Alveolar Lavage Fluids,Bronchial Lavage Fluids,Bronchoalveolar Lavage Fluids,Lavage Fluid, Alveolar,Lavage Fluid, Bronchoalveolar,Lavage Fluid, Pulmonary,Lavage Fluids, Alveolar,Lavage Fluids, Bronchial,Lavage Fluids, Bronchoalveolar,Lavage Fluids, Lung,Lavage Fluids, Pulmonary,Lung Lavage Fluids,Pulmonary Lavage Fluids
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012507 Sarcoidosis An idiopathic systemic inflammatory granulomatous disorder comprised of epithelioid and multinucleated giant cells with little necrosis. It usually invades the lungs with fibrosis and may also involve lymph nodes, skin, liver, spleen, eyes, phalangeal bones, and parotid glands. Besnier-Boeck Disease,Boeck's Sarcoid,Besnier-Boeck-Schaumann Syndrome,Boeck Disease,Boeck's Disease,Schaumann Disease,Schaumann Syndrome,Schaumann's Syndrome,Besnier Boeck Disease,Besnier Boeck Schaumann Syndrome,Boeck Sarcoid,Boecks Disease,Boecks Sarcoid,Disease, Schaumann,Sarcoid, Boeck's,Sarcoidoses,Schaumann's Syndromes,Syndrome, Besnier-Boeck-Schaumann,Syndrome, Schaumann,Syndrome, Schaumann's
D015703 Antigens, CD Differentiation antigens residing on mammalian leukocytes. CD stands for cluster of differentiation, which refers to groups of monoclonal antibodies that show similar reactivity with certain subpopulations of antigens of a particular lineage or differentiation stage. The subpopulations of antigens are also known by the same CD designation. CD Antigen,Cluster of Differentiation Antigen,Cluster of Differentiation Marker,Differentiation Antigens, Leukocyte, Human,Leukocyte Differentiation Antigens, Human,Cluster of Differentiation Antigens,Cluster of Differentiation Markers,Antigen Cluster, Differentiation,Antigen, CD,CD Antigens,Differentiation Antigen Cluster,Differentiation Marker Cluster,Marker Cluster, Differentiation
D047889 Receptors, Tumor Necrosis Factor, Type II A tumor necrosis factor receptor subtype that is expressed primarily in IMMUNE SYSTEM cells. It has specificity for membrane-bound form of TUMOR NECROSIS FACTORS and mediates intracellular-signaling through TNF RECEPTOR ASSOCIATED FACTORS. Antigens, CD120b,CD120b Antigens,Receptors, Tumor Necrosis Factor, Member 1B,Tumor Necrosis Factor Receptor Superfamily, Member 1B,Tumor Necrosis Factor Receptor Type II,CD 120b Antigen,CD120b Antigen,TNF-R2,TNF-R75,TNF-RII,TNF-sR75,TNFR p75,TNFR p80,TNFR2,TNFRSF1B Receptor,Tumor Necrosis Factor Receptor 2,Tumor Necrosis Factor Receptor 75,Tumor Necrosis Factor Receptor Type 2,120b Antigen, CD,Antigen, CD 120b,Antigen, CD120b,Receptor, TNFRSF1B
D018124 Receptors, Tumor Necrosis Factor Cell surface receptors that bind TUMOR NECROSIS FACTORS and trigger changes which influence the behavior of cells. Cachectin Receptors,TNF Receptors,Tumor Necrosis Factor Receptors,Receptors, Cachectin,Receptors, TNF,TNF Receptor,Tumor Necrosis Factor Receptor,Receptor, TNF

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