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  • Title: The preliminary estimation of bcl-2, bcl-X(L) and p53 genes expression in locally advanced non-small cell lung cancer.
    Author: Karczmarek-Borowska B, Filip A, Zdunek M, Korobowicz E, Wojcierowski J, Korszeń-Pilecka I, Furmanik F.
    Journal: Ann Univ Mariae Curie Sklodowska Med; 2003; 58(1):124-31. PubMed ID: 15314971.
    Abstract:
    Cell neoplastic transformation results from disturbances in expression of genes regulating its basic functions like cell cycle and apoptosis. Our paper presents preliminary estimation of expression of protooncogenes: bcl-2 and bcl-X(L) as well as of p53 suppressor gene in (NSCLC) non-small-cell lung cancer patients. The study comprised 16 NSCLC patients subjected to chemotherapy before operative procedure. Gene expression was evaluated on paraffin embedded specimens using in situ hybridization assay and immunohistochemical method. In the majority of examined patients, high expression of bcl-X(L) gene both at mRNA and protein level was ascertained. In the case of 10 patients (62.5%), higher p53 gene expression at mRNA level was observed, whereas higher level of P53 protein was determined only in four subjects (25%). In two of 16 cases (12.5%), protein product of bcl-2 gene was found, while in eight subjects (50%)--mRNA expression of the gene.
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