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Systemic sclerosis in German uranium miners under special consideration of autoantibody subsets and HLA class II alleles. 1996

X Baur, and H P Rihs, and P Altmeyer, and P Degens, and K Conrad, and J Mehlhorn, and K Weber, and V Wiebe
Berufsgenossenschaftliches, Forschungsinstitut für Arbeitsmedizin, Ruhr-Universität Bochum, Deutschland.

Systemic sclerosis (scleroderma) is a connective tissue disease with a wide range of clinical manifestations, with high or low degrees of skin and internal organ involvement together with different antinuclear antibody (ANA) specificities. Several studies provide evidence that males, who are rarely affected by systemic sclerosis, have an increased risk when working in mines. Therefore we reinvestigated 21 male subjects and 6 cases of deceased male patients who had been engaged in East German uranium mines and had shown evidence of this disease in medical examinations. Dermatological investigations, evaluation of chest X-rays and autoantibody estimation were performed. PCR-sequence-specific oligonucleotide typing was used to study the genetic association of HLA-D alleles with autoantibodies typical for scleroderma in these uranium miners suffering from systemic sclerosis and in patients with idiopathic systemic sclerosis. The determined HLA phenotype frequencies and the following statistical analysis (Fisher's exact test (2-sided)) revealed that in comparison with randomly selected controls, alleles DRB1*0300 (DR3) and DQB1*0201 (DQ2) were distinctly increased in the group of affected uranium miners, especially in those with anti-Scl-70 positivity. In contrast, we did not observe significant differences between affected and unaffected miners. Comparing anti-Scl-70-positive affected uranium miners with anti-Scl-70-positive idiopathic systemic sclerosis cases. DRB1*0300 as well as DQB1*0201 were also significantly enhanced in the former group. ACA-positive systemic sclerosis miners had significantly elevated frequencies in DRB1*0100 (DR1) and DRB1*0800 (DR8) only in comparison with unaffected miners and unexposed controls. Our genetic and immunological data lead to the assumption that a different set of HLA-D alleles in combination with exogenous factors is involved in the induction of anti-Scl-70 antibodies in uranium miners that might influence their susceptibility to the disease, whereas the same occupational exposure seems to have no influence on the induction of ACA antibodies.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008906 Mining The process of extracting mineral deposits from the earth.
D009784 Occupational Diseases Diseases caused by factors involved in one's employment. Diseases, Occupational,Occupational Illnesses,Disease, Occupational,Illnesse, Occupational,Illnesses, Occupational,Occupational Disease,Occupational Illnesse
D004198 Disease Susceptibility A constitution or condition of the body which makes the tissues react in special ways to certain extrinsic stimuli and thus tends to make the individual more than usually susceptible to certain diseases. Diathesis,Susceptibility, Disease,Diatheses,Disease Susceptibilities,Susceptibilities, Disease
D005260 Female Females
D006681 HLA-D Antigens Human immune-response or Class II antigens found mainly, but not exclusively, on B-lymphocytes and produced from genes of the HLA-D locus. They are extremely polymorphic families of glycopeptides, each consisting of two chains, alpha and beta. This group of antigens includes the -DR, -DQ and -DP designations, of which HLA-DR is most studied; some of these glycoproteins are associated with certain diseases, possibly of immune etiology. Antigens, HLA-D,Class II Human Antigens,HLA-Dw Antigens,Human Class II Antigens,Ia-Like Antigens, Human,Immune Response-Associated Antigens, Human,Immune-Associated Antigens, Human,Immune-Response Antigens, Human,HLA-D,HLA-Dw,Immune Response Associated Antigens, Human,Antigens, HLA D,Antigens, HLA-Dw,Antigens, Human Ia-Like,Antigens, Human Immune-Associated,Antigens, Human Immune-Response,HLA D Antigens,HLA Dw Antigens,Human Ia-Like Antigens,Human Immune-Associated Antigens,Human Immune-Response Antigens,Ia Like Antigens, Human,Immune Associated Antigens, Human,Immune Response Antigens, Human
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
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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