Thrombocytopenia associated with auranofin therapy: evidence for a gold-dependent immunologic mechanism. 1989

M P Kosty, and P K Hench, and P Tani, and R McMillan
Department of Internal Medicine (Hematology/Oncology Division), Naval Hospital, San Diego, CA 92134-5000.

Thrombocytopenia associated with gold therapy is thought to be due to an immune-mediated mechanism. Relatively few patients have been studied so far, and precise details of the pathophysiology of this disease remain undetermined. We report a patient with gold-induced thrombocytopenia resulting from auranofin therapy. The patient's plasma contained platelet-reactive antibodies detectable only in the presence of gold salts. Antibody binding occurred at gold concentrations ranging from 0.01 to 10,000 ng/ml. The binding occurred independently of gold salt used, suggesting that substitution of a different gold preparation in this patient would result in a similar thrombocytopenia. These data support a drug-dependent immune mechanism for platelet destruction.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001792 Blood Platelets Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation. Platelets,Thrombocytes,Blood Platelet,Platelet,Platelet, Blood,Platelets, Blood,Thrombocyte
D005260 Female Females
D006046 Gold A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000906 Antibodies Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).
D001310 Auranofin An oral chrysotherapeutic agent for the treatment of rheumatoid arthritis. Its exact mechanism of action is unknown, but it is believed to act via immunological mechanisms and alteration of lysosomal enzyme activity. Its efficacy is slightly less than that of injected gold salts, but it is better tolerated, and side effects which occur are potentially less serious. Crisinor,Ridaura,Ridauran,SK&F D 39162,SK&F-39162,SK&F 39162,SK&F39162
D001696 Biomechanical Phenomena The properties, processes, and behavior of biological systems under the action of mechanical forces. Biomechanics,Kinematics,Biomechanic Phenomena,Mechanobiological Phenomena,Biomechanic,Biomechanic Phenomenas,Phenomena, Biomechanic,Phenomena, Biomechanical,Phenomena, Mechanobiological,Phenomenas, Biomechanic
D013921 Thrombocytopenia A subnormal level of BLOOD PLATELETS. Thrombopenia,Thrombocytopenias,Thrombopenias

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