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Dev Biol. 1985 Aug;110(2):382-91.

A pituitary-salivary mixed gland induced by tissue recombination of embryonic pituitary epithelium and embryonic submandibular gland mesenchyme in mice.


Renal subcapsular syngrafts of Day 9 to 11 mouse embryonic pituitary epithelium with Day 14 mouse embryonic submandibular gland mesenchyme produced mixed organs that include residual cleft structure surrounded by anterior pituitary cells some which are stained by anti-ACTH antiserum and submandibular gland-like structure with differentiated acinar cells which are stained by anti-alpha-amylase antiserum. However, when Day 8.5 or 12 embryonic pituitary epithelium was recombined with submandibular gland mesenchyme and syngrafted, development of submandibular gland-like or anterior pituitary tissues resulted, respectively. Thus, during organogenesis of the mouse anterior pituitary, there exists a developmental stage (Day 8.5-11 in utero), when prospective pituitary epithelium can respond to heterotypic submandibular gland mesenchyme with the development of a submandibular gland-like tissue.

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