title: A novel tumor suppressor gene in basal cell carcinoma: inhibition of growth factor-2.
abstract: In loss of heterozygosity (LOH) studies at the chromosome 4q22-35 region, it was shown that the amount of deletion was high in basal cell carcinoma (BCC). It has been proposed that genes located in this chromosomal region could be tumor suppressor genes in BCC. It has been thought that deletions in the ING2 gene located in the same region can play a role in the pathophysiology of BCC and that deletions occurring in this region may influence the level of ING2 expression in BCC. Tumoral and non-tumoral tissues from 75 patients with BCC (45 men and 30 women) were included to the study. Lesions were excised by a surgical margin of 0.5 cm. After excision, RNA was isolated from tumoral and non-tumoral tissue samples. ING2 messenger RNA (mRNA) expression level was determined in tumoral and non-tumoral tissues by the real-time polymerase chain reaction (RT-PCR). It was detected that ING2 mRNA expression level decreased in tumoral tissues when compared to non-tumoral tissues from BCC patients (p = 0.0001). It was found that expression levels of this gene were comparable among patients with primary, recurrent, or multiple BCC. It is thought that ING2 gene expression level could contribute to the development of BCC but not be associated with the stage and the prognosis of the tumor.
authors.affiliation: Department of Plastic and Reconstructive Surgery, School of Medicine, Mustafa Kemal University, Hatay, Turkey, drmetintemel@hotmail.com.
authors.forename: Metin
authors.initials: M
authors.lastname: Temel
authors.forename: Arif
authors.initials: A
authors.lastname: Turkmen
authors.forename: Recep
authors.initials: R
authors.lastname: Dokuyucu
authors.forename: Cengiz
authors.initials: C
authors.lastname: Cevik
authors.forename: Serdar
authors.initials: S
authors.lastname: Oztuzcu
authors.forename: Beyhan
authors.initials: B
authors.lastname: Cengiz
authors.forename: Mehmet
authors.initials: M
authors.lastname: Mutaf
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002280:Basal Cell Carcinoma / Q000235:genetics* / Q000473:pathology; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D016147:Genes, Tumor Suppressor; D018398:Homeodomain Proteins / Q000096:biosynthesis* / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012333:RNA, Messenger / Q000096:biosynthesis; D018160:Receptors, Cytoplasmic and Nuclear / Q000096:biosynthesis* / Q000235:genetics; D012878:Skin Neoplasms / Q000235:genetics* / Q000473:pathology; D025521:Tumor Suppressor Proteins / Q000096:biosynthesis* / Q000235:genetics; D014466:Ultraviolet Rays
chemical_list: D018398:Homeodomain Proteins; C444654:ING2 protein, human; D012333:RNA, Messenger; D018160:Receptors, Cytoplasmic and Nuclear; D025521:Tumor Suppressor Proteins