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1. Proopiomelanocortin (POMC) mRNA and POMC-derived peptides immunolocalization in the skin of Protopterus annectens, an African lungfish.

Author

Masini MA, Sturla M, Pestarino M, Facchinetti F, Gallinelli A, and Uva BM

Subjects
Adrenocorticotropic Hormone analysis, Africa, Animals, Immunohistochemistry, In Situ Hybridization, Pro-Opiomelanocortin genetics, Pro-Opiomelanocortin immunology, RNA, Messenger analysis, RNA, Messenger biosynthesis, Skin cytology, Skin metabolism, alpha-MSH analysis, beta-Endorphin analysis, Fishes metabolism, Pro-Opiomelanocortin analysis, Skin chemistry
Abstract

Antisera against adrenocorticotropic hormone (ACTH), alpha-melanocyte stimulating hormone (alpha-MSH) and beta-endorphin were used to localize, by immunohistochemistry, proopiomelanocortin (POMC)-derived peptides in the skin excised from different regions of the African lungfish Protopterus annectens. Immunoreactivity was observed in the epidermis mainly in the germinal layer. Using human POMC cDNA as hybridization probe, POMC-like mRNA was identified in situ in epidermal cells. The demonstration in the same cells of POMC mRNA and POMC-related peptides immunoreactivity indicates a local production of opiate hormones.

Published
1999
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