Naslov
Expression of growth hormone receptor in actinic keratosis and squamous cell carcinoma of the skin

Autori
Stanimirović, Andrija ; Čupić, Hrvoje ; Bošnjak, Berislav ; Krušlin, Božo ; Tomas, Davor ; Belicza, Mladen

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
14th Ljudevit Jurak International Symposium on Comparative Pathology, Book of Abstracts / Krušlin, Božo ; Belicza, Mladen - Zagreb : Birotisak, 2003, 8-10

Skup
14th Ljudevit Jurak International Symposium on Comparative Pathology

Mjesto i datum
Zagreb, Hrvatska, 06.06.2003. - 07.06.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
hipertrofična aktinična keratoza ; p53 ; bcl-2 ; receptor hormona rasta ; imunohistokemija

Sažetak
According to novel investigations, actinic keratosis (AK) is not a premalignant lesion but is a malignant lesion in the evolution to invasive squamous cell carcinoma (SCC). Thus, we analyzed p53, bcl-2 and growth hormone receptor (GHR) expression in hypertrophic type AK (HAK) to determine the relative importance of these protooncogenes in the biological behavior of HAK. Expression of p53, bcl-2 and GHR was determined by immunohistochemistry in 33 HAK specimens and surrounding perilesional normal skin (PNS). The relative proportions of immunoreactive cells were determined. Of the 33 HAK specimens, 30 (91%) showed immunopositive staining for p53, 33 (100%) for bcl-2 and 12 (36%) for GHR. Highly positive p53 expression in HAK lesions could indicate that p53 mutation is an early and crucial event in lesion development. The detected pattern of the p53/bcl-2 ratio in HAK suggests an important role for another gene: the proapoptotic gene bax. Our findings indicate that GHR expression could be a biological marker of progression of HAK to SCC.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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