Patients with endocrine ophthalmopathy not associated with overt thyroid disease have multiple thyroid immunological abnormalities

M. Salvi, Z. G. Zhang, D. Haegert, M. Woo, A. Liberman, L. Cadarso, J. R. Wall

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Abstract

Twenty-two apparently euthyroid patients with endocrine ophthalmopathy not associated with goiter, antithyroid microsomal or antithyroglobulin antibodies, or overt thyroid disease (so-called ophthalmic Graves' disease) were tested for subclinical hyperthyroidism or hypothyroidism. We measured 131I uptake and scan, serum T3 (by RIA), and serum TSH using a sensitive (by immunoradiometric assay) assay. Three patients were found to be hyperthyroid, and 1 was hypothyroid. The remaining 18 patients, who remained euthyroid throughout the study period, were investigated for evidence for antibody-mediated immunity against thyroid antigens. We measured antibody-dependent cell-mediated cytotoxicity against fresh thyroid cells using a 51chromium release assay, thyroid membrane-reactive antibodies in an enzyme-linked immunosorbent assay incorporating solubilized thyroid membranes, and TSH receptor-binding antibodies using a RRA and carried out sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and Western blotting with patient sera for antibodies reactive with 64 and 110 kDa (thyroid peroxidase) membrane proteins. Bands were demonstrated, on SDS-PAGE, at 64 or 110 kDa in 13 patients, antibody-dependent cell-mediated cytotoxicity tests were positive in 7 patients, and enzyme-linked immunosorbent assay was positive in 4 of the 17 patients tested. In addition, TSH receptor antibody tests were positive in 5 patients, none of whom had other evidence for hyperthyroidism. Finally, significant lymphocyte infiltration was demonstrated on aspiration biopsy in 3 patients. All 18 patients had positive tests in at least 1 of the immunological assays. We believe that these data support the hypothesis that endocrine ophthalmopathy always occurs in patients with overt or subclinical Graves' hyperthyroidism, Hashimoto's thyroiditis, or thyroid immunological abnormalities. Those patients previously described as having euthyroid Graves' disease should, thus, be considered to have associated thyroid immunological abnormalities even though histological confirmation (from aspiration needle biopsy) may be obtained in only a minority of the patients. The possibility that the mechanism for this close association is cross-reactivity of cytotoxic antibodies against a thyroid/eye muscle cell surface shared antigen is discussed in the context of recent evidence from the authors' laboratory.

Original languageEnglish
Pages (from-to)89-94
Number of pages6
JournalJournal of Clinical Endocrinology and Metabolism
Volume70
Issue number1
Publication statusPublished - 1990

Fingerprint

Thyroid Diseases
Thyroid Gland
Assays
Antibodies
Immunosorbents
Biopsy
Hyperthyroidism
Cytotoxicity
Electrophoresis
Sodium Dodecyl Sulfate
Needle Biopsy
Antibody-Dependent Cell Cytotoxicity
Membranes
Antigens
Thyrotropin Receptors
Iodide Peroxidase
Graves Disease
Lymphocytes
Enzymes
Infiltration

ASJC Scopus subject areas

  • Biochemistry
  • Endocrinology, Diabetes and Metabolism

Cite this

Patients with endocrine ophthalmopathy not associated with overt thyroid disease have multiple thyroid immunological abnormalities. / Salvi, M.; Zhang, Z. G.; Haegert, D.; Woo, M.; Liberman, A.; Cadarso, L.; Wall, J. R.

In: Journal of Clinical Endocrinology and Metabolism, Vol. 70, No. 1, 1990, p. 89-94.

Research output: Contribution to journalArticle

Salvi, M. ; Zhang, Z. G. ; Haegert, D. ; Woo, M. ; Liberman, A. ; Cadarso, L. ; Wall, J. R. / Patients with endocrine ophthalmopathy not associated with overt thyroid disease have multiple thyroid immunological abnormalities. In: Journal of Clinical Endocrinology and Metabolism. 1990 ; Vol. 70, No. 1. pp. 89-94.
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AU - Cadarso, L.

AU - Wall, J. R.

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