Étude cytologique et immunocytologique de l'organisation du lobe intermediaire de l'hypophyse de la Perche Perca fluviatilis L

Follenius, E; Dubois, M. P.

doi:10.1016/0016-6480(76)90116-7

Cited by 11 publications

(3 citation statements)

References 40 publications

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“…Teleostean MSH cells, as found in the M. yellowtail, are characterized by small secretory granules in the Golgi area and variably sized, round secretory granules of varying electron density and content appearance dispersed throughout the cytoplasm (Leatherland, 1970b;Benjamin, 1974;Thornton and Howe, 1974;Batten et al, 1975;Follénius and Dubois, 1976;van Eys, 1980;Quesada et al, 1988). A few rod-shaped secretory granules were found in P. latipinna (Batten et al, 1975).…”

Section: Discussionmentioning

confidence: 99%

“…A few rod-shaped secretory granules were found in P. latipinna (Batten et al, 1975). The variable electron density of the secretory granules of MSH cells has been attributed to cell activity variations, to fixation conditions (Thornton and Howe, 1974), and to the granule maturation process (Follénius and Dubois, 1976).…”

Section: Discussionmentioning

confidence: 99%

“…However, although the ultrastructure of the putative MSH and ACTH cells has been described in a number of teleost species (Benjamin, 1974;Leatherland et al, 1974;Thornton and Howe, 1974;Batten et al, 1975;Follénius and Dubois, 1976;van Eys, 1980;Quesada et al, 1988), only a few immunocytochemical ultrastructural studies have been performed (van Eys, 1980;Batten, 1986).…”

mentioning

confidence: 99%

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Immunocytochemical and ultrastructural characterization of melanotropin and adrenocorticotropin cells from the mediterranean yellowtail (Seriola dumerilii, Risso 1810)

et al. 1997

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Immunocytochemical and ultrastructural characterization of melanotropin and adrenocorticotropin cells from the mediterranean yellowtail (Seriola dumerilii, Risso 1810)

et al. 1997

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Immunocytological study of the differentiation of chick and quail adenohypophysis epithelial rudiments, grafted or cultivated in vitro: Evidence for polypeptidic hormones

Ferrand

Frémont

Dubois³

1980

Am. J. Anat.

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Epithelial rudiments of adenohypohysis were removed from chick and quail embryos between days 3 and 5 of development. Chick rudiments were grafted for 11--13 days onto the chorioallantoic membrane of decapitated chick embryo hosts. Quail rudiments were cultivated in vitro for 6 days. Both grafted and cultivated Rathke's pouches differentiated into adenohypophyseal tissue. The adenohypophyseal tissue cultured on chorio-allantoic membrane exhibited cells reacting with the following immune sera: anti-beta-(1--24)ACTH, anti-alpha-(17--39)-ACTH, anti-alpha-endorphin, anti-beta-endorphin and anti-beta-LPH, which also gave a positive reaction when applied to adenohypophysis of corresponding age which had differentiated in situ. In situ, corticotrophs were located exclusively in the cephalic lobe of adenohypophysis. Therefore, the differentiation of corticotrophs in the whole graft, i.e., from both cephalic and caudal lobes of Rathke's pouch, showed that the cells of the caudal lobe, or at least some of them, were uncommitted when the rudiment was removed. In vitro, tissue derived from Rathke's pouch contained cells reacting with antibodies to beta-(1--24)-ACTH, alpha-(17--39)-ACTH, and beta-LPH, as did adenohypophysis from quail embryos of corresponding age (9--10 days), differentiated in situ. The differentiation of quail Rathke's pouch in vitro corroborates that differentiation can occur without influence from hypothalamus and, moreover, shows that at least some kinds of cells can differentiate without influence exerted by any other encephalic factors, and in the absence of mesenchyme. The question arises whether fibroblastic cells derived from Rathke's pouch cells act as feeder-cells and/or secrete some factors promoting differentiation.

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Immunocytochemical Demonstration of Melanotropic and Adrenocorticotropic Cells from the Gilthead Sea Bream (Sparus aurata L., Teleostei) by Light and Electron Microscopy: An Ontogenic Study

Villaplana

Ayala

Agulleiro

2002

General and Comparative Endocrinology

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Étude cytologique et immunocytologique de l'organisation du lobe intermediaire de l'hypophyse de la Perche Perca fluviatilis L

Cited by 11 publications

References 40 publications

Immunocytochemical and ultrastructural characterization of melanotropin and adrenocorticotropin cells from the mediterranean yellowtail (Seriola dumerilii, Risso 1810)

Immunocytochemical and ultrastructural characterization of melanotropin and adrenocorticotropin cells from the mediterranean yellowtail (Seriola dumerilii, Risso 1810)

Immunocytological study of the differentiation of chick and quail adenohypophysis epithelial rudiments, grafted or cultivated in vitro: Evidence for polypeptidic hormones

Immunocytochemical Demonstration of Melanotropic and Adrenocorticotropic Cells from the Gilthead Sea Bream (Sparus aurata L., Teleostei) by Light and Electron Microscopy: An Ontogenic Study

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