Evidence for FSH-like material in ACTH granules of certain corticotropic cells in the pituitary of the pig |
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Authors: | Françoise Dacheux |
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Affiliation: | (1) Laboratoire de Physiologie Comparée, Faculté des Sciences, Tours, France I.N.R.A. — Station de Physiologie de la Reproduction, Nouzilly, France;(2) I.N.R.A., Physiologie de la Reproduction, 37380 Nouzilly, France |
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Abstract: | Summary The ultrastructural immunocytochemical peroxidase-antiperoxidase technique used on serial sections reveals that certain corticotropic cells contain both ACTH and FSH, but not LH (ACTH/FSH cells). To determine the specificity of the anti-FSH staining in these cells, immunocytochemical absorption experiments were performed. The results indicate that (1) anti-FSH and -ACTH antisera are bound to different antigens in the corticotropic cell, and (2) anti-FSH staining is specific for a FSH-like antigen. In the ACTH/FSH cells both hormones are stored in the same secretory granules, distributed among other granules that contain only ACTH. |
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Keywords: | Anterior pituitary, porcine ACTH FSH Electron-microscopic immunocytochemistry |
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