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PMID:1329576
| Citation |
Wilson, DB and Wyatt, DP (1992) Adrenocorticotropic cell distribution in adult and embryonic pituitaries of the little (lit) mutant mouse. Anat. Embryol. 186:347-53 |
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| Abstract |
Immunofluorescence and colloidal gold immunocytochemistry were used to analyze the regional distribution of adrenocorticotropic (ACTH) cells and their ultrastructural relationship with growth hormone (GH) cells in adult and 17-day embryonic little (lit/lit) mice that exhibit GH cell defects. Adult lit/lit pituitaries lack the distinctive regionalization of ACTH cells that characterizes normal pituitaries, although typical ultrastructural relationships occur between some ACTH and GH cells. In 17-day embryos, normal and lit/lit pituitaries show similar distributions of ACTH cells. However, in lit/lit pituitaries the pars distalis cells are more loosely arranged, with poorly defined clusters and cords, than in normal glands. The results indicate that whereas the lack of ACTH cell regionalization in adult glands may be a secondary effect of the GH cell defect, the differences in overall integrity of the 17-day embryonic glands suggest the possibility of a developmental disturbance during early stages of gestation in this mutant. |
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| Keywords |
Adrenocorticotropic Hormone/analysis; Animals; Immunohistochemistry; Male; Mice; Mice, Inbred C57BL; Mice, Mutant Strains; Microscopy, Electron; Pituitary Gland/chemistry; Pituitary Gland/cytology; Pituitary Gland/embryology; Pituitary Gland/growth & development |
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Significance
Annotations
| Gene product | Qualifier | GO ID | GO term name | Evidence Code | with/from | Aspect | Notes | Status |
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