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  • Title: Pro-opiomelanocortin mRNA and peptide co-expression in the developing rat pituitary.
    Author: Khachaturian H, Kwak SP, Schafer MK, Watson SJ.
    Journal: Brain Res Bull; 1991 Feb; 26(2):195-201. PubMed ID: 1849441.
    Abstract:
    Pro-opiomelanocortin (POMC) is synthesized in both the pituitary gland and the brain. Various peptide products of this precursor, namely beta-endorphin, ACTH and alpha-MSH are co-localized in the anterior lobe corticotrophs, all intermediate lobe cells and in hypothalamic neurons. Messenger RNA (mRNA) for POMC has further been shown to exist in these tissues. In this study, we have shown that POMC mRNA, and peptide accumulation as detected by in situ hybridization and immunocytochemistry, respectively, occur simultaneously within the rat pituitary gland during ontogeny and that their maturation occurs in parallel during prenatal and early postnatal development.
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