title: Preliminary report of expression of bax in oral cavity pathologies.
abstract: Bax is considered one of major effectors of apoptosis--programmed cell death. Immunohistochemical analysis of in vitro patterns of bax expression was mostly investigated in mammalian cell lines and tissues. The present study is the first in vivo molecular analysis of bax expression in oral cavity pathologies. The study population consisted of 45 patients with hyperplasia, neoplasm in situ malignancy, and carcinoma. Biopsies were taken from incision line, tumour section, and healthy tissue. bax expression was investigated depending on the site of biopsy material sampling and final histopathology result. No statistically significant difference was demonstrated in bax expression between four hyperplasia subgroups. However, statistically significant differences in bax expression were found between the three basic study groups (P = 0.001). Statistically significant differences in bax expression were demonstrated depending on tissue collection site (P = 0.0002). We conclude that differences in bax expression may play a role in the pathogenesis of neoplastic disease.
authors.affiliation: Department of Maxillofacial Surgery, Medical University of Silesia, Katowice, Poland. stomgab@wp.pl
authors.forename: I
authors.initials: I
authors.lastname: Niedzielska
authors.forename: Z
authors.initials: Z
authors.lastname: Niedzielski
authors.forename: D
authors.initials: D
authors.lastname: Sypniewski
authors.forename: U
authors.initials: U
authors.lastname: Mazurek
authors.forename: T
authors.initials: T
authors.lastname: Wilczok
authors.forename: J
authors.initials: J
authors.lastname: Dabek
mesh_terms: D050398:Adamantinoma / Q000378:metabolism* / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000473:pathology; D006101:Granuloma, Giant Cell / Q000378:metabolism* / Q000473:pathology; D006801:Humans; D009062:Mouth Neoplasms / Q000378:metabolism* / Q000473:pathology; D009232:Myxoma / Q000378:metabolism* / Q000473:pathology; D012333:RNA, Messenger / Q000096:biosynthesis; D020133:Reverse Transcriptase Polymerase Chain Reaction; D051028:bcl-2-Associated X Protein / Q000235:genetics / Q000378:metabolism*
chemical_list: C494826:BAX protein, human; D012333:RNA, Messenger; D051028:bcl-2-Associated X Protein