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Hormones common to the neuroendocrine and immune systems.

Considerable progress is now being made in studies of the interactions between the immune and neuroendocrine systems, and the relevance of the results to many disease processes is increasingly recognised. Recent published, and hitherto unpublished, work on one aspect of this topic--the production and function of neuroendocrine hormone by cells of the immune system--is herein summarised by a foremost investigator and his colleagues. Evidence is presented that several peptide hormones (ACTH, endorphins, thyrotropin, chorionic gonadotropin, growth hormone) are produced constitutionally, or in response to stimulation, by cells of the immune system, and there is speculation as to their roles in local immune response, endotoxic shock, antibody production, pregnancy, and in the diagnosis of specific psychiatric and neuroendocrine disorders. The review and commentary contribute to fuller understanding of the underlying molecular biology, from which new opportunities in rational drug design will undoubtedly emerge.