Endocrine Abstracts

The mechanism by which the thionamide antithyroid drugs produce long-term remission of Graves’ hyperthyroidism is unknown. We wished to explore the hypothesis that methimazole (MMI) could induce a structural change in thyroid peroxidase (TPO), such that its major (immunodominant) epitope(s) was no longer recognised by circulating anti-TPO antibodies.An enzymatically active membrane preparation of a CHO cell-line stably transfected with human TPO was...