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  • Title: Frequent high expression of bax pro-apoptotic protein in non-small cell lung cancer.
    Author: Caputi M, Groeger AM, Esposito V, De Luca A, Murabito M, Tahir T, Giordano GG, Baldi F, Giordano A, Wolner E.
    Journal: Anticancer Res; 1999; 19(1B):825-7. PubMed ID: 10216500.
    Abstract:
    Bax, bcl-2 and their homologues regulate a distal step in an evolutionary very well conserved pathway of apoptotic cell death. It plays a crucial role in the balance between proliferation rate and cell viability. Thus in the last years the attention of the scientific community towards these proteins has remarkably increased, in particular in the oncologic field. We developed an immunohistochemical assay allowing us to evaluate the bax expression in formalin fixed and paraffin embedded lung cancer tissues to investigate bax expression in a cohort of 55 patients affected by non-small cell lung cancer. We detected high expression of bax in 72.7% of our patients. When we statistically analyzed our data we did not find any correlation between bax expression and any clinicopathologic parameters (sex, age, TNM status, tumor grade, histological type). In conclusion, our study shows the frequent overexpression of bax, and this highlights the "apoptotic tendency" of cells during the neoplastic proliferation. But, the role of bax in non-small cell lung cancer pathogenesis still remains unclear and further studies of large numbers of patients, including different stage groups, are needed to better define the involvement of this protein in the complex mechanism of lung carcinogenesis.
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