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  • Title: Sjögren's syndrome: autoantibodies to cellular antigens. Clinical and molecular aspects.
    Author: Mavragani CP, Tzioufas AG, Moutsopoulos HM.
    Journal: Int Arch Allergy Immunol; 2000 Sep; 123(1):46-57. PubMed ID: 11014971.
    Abstract:
    Autoantibodies to cellular autoantigens are usually found in sera of patients with systemic autoimmune rheumatic diseases. Patients with Sjögren's syndrome (SS) frequently present autoantibodies to both organ and non-organ-specific autoantigens. The most commonly detected autoantibodies are those directed against the ribonucleoproteins Ro/SSA and La/SSB. The presence of the antibodies in SS is associated with early disease onset, longer disease duration, parotid gland enlargement, higher frequency of extraglandular manifestations and more intense lymphocytic infiltration of the minor salivary glands. Over the past several years, the structure and function of these autoantigens have been extensively studied. Several centers, using different techniques, have investigated the B cell epitopes on the protein components Ro 60 kD, Ro 52kD, and La 48 kD. Finally, increased evidence of direct involvement of anti-Ro/SSA and anti-La/SSB autoantibodies in the pathogenesis of tissue injury has been contributed by several studies.
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