Abstract
Several studies have reported conflicting results regarding correlations of the loss of Fhit expression with clinicopathological parameters in gastric cancer. We investigated the immunohistochemical expression of Fhit in 362 cases of sporadic advanced gastric adenocarcinoma. The series included 64 cases with microsatellite instability associated with defective mismatch repair genes. Fhit expression resulted absent in 72% of the tumors analyzed. Absence of Fhit expression was more frequent in cases with diffuse and mixed histotype compared to the intestinal histotype (P=0.009). Absence of Fhit expression also correlated with tumor stage (P<0.001), lymph node involvement (P<0.001), presence of distant metastasis (P=0.033), and increasing histological grade (P=0.005). Retained Fhit expression also correlated with microsatellite instability as 61% of instable tumors had lost Fhit expression compared to 74% of microsatellite stable cancers (P=0.050). While loss of Fhit correlates with poorer survival in univariate analysis, it is not an independent prognostic factor in multivariate analysis and is thus not of clinical utility.
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Acknowledgements
Emma Bragantini and Stefano Barbi contributed equally. This work was supported by: Fondazione Cassa di Risparmio di Verona (Bando 2004) to P.S. Moore; Associazione Italiana Ricerca sul Cancro (AIRC), Milan, Italy to G. de Manzoni; CNR and MIUR, Rome, Italy to Aldo Scarpa and Franco Rovielle.
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Bragantini, E., Barbi, S., Beghelli, S. et al. Loss of Fhit expression is associated with poorer survival in gastric cancer but is not an independent prognostic marker. J Cancer Res Clin Oncol 132, 45–50 (2006). https://doi.org/10.1007/s00432-005-0045-9
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DOI: https://doi.org/10.1007/s00432-005-0045-9