Immunohistochemical expression of insulin-like growth factor 1 and its receptor in normal and neoplastic human adrenal cortex
1995 (English)In: Anticancer Research, ISSN 0250-7005, Vol. 15, no 6B, 2453-2459 p.Article in journal (Refereed) Published
Insulin-like growth factor 1 (IGF-1) may influence cellular growth, differentiation and secretion.
MATERIAL AND METHODS:
Cryosectioned normal human adrenal glands (n = 6), cortical adenoma (n = 21), and carcinoma (n = 17) were stained immunohistochemically for IGF-1 and its receptor, and human adrenocortical cancer cells expressing the receptor were analysed for influences on proliferation.
Normal cortical parenchyma generally displayed faint IGF-1 reactivity and intracellular receptor staining. Similar labelling encompassed the adenomas, but only 6 of them were receptor reactive. IGF-1 expression was conspicuous in 11 carcinomas, and 6 of them displayed cell surface receptor reactivity. All aldosterone producing lesions were receptor antibody unreactive. Recombinant IGF-1 dose-dependently stimulated the cell proliferation, and this effect was reversed by the receptor antibody.
IGF-1 may interact with function and proliferation of the human adrenal cortex with particular reference to cortical carcinomas lacking discernible aldosterone excess.
Place, publisher, year, edition, pages
1995. Vol. 15, no 6B, 2453-2459 p.
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-55293PubMedID: 8669808OAI: oai:DiVA.org:uu-55293DiVA: diva2:83201