Immunohistochemical Expression of Aquaporin-1 in Fluoro-Edenite-Induced Malignant Mesothelioma: A Preliminary Report

International Journal of Molecular Sciences
Giuseppe AngelicoVenerando Rapisarda

Abstract

The immunohistochemical expression of aquaporin-1 (AQP1) in asbestos-related malignant pleural mesothelioma (MPM) is emerging as a useful prognostic indicator of improved survival. A significantly increased incidence of MPM in a small town in southern Italy was ascribed to exposure to fluoro-edenite (FE), a naturally occurring asbestos fiber. We investigated the immunohistochemical expression of AQP1 in patients affected by FE-related MPM; taking into consideration its suggested independent prognostic role, its possible correlation with clinicopathological parameters and patient outcome was also evaluated. Ten patients were selected for this study, as neoplastic tissue blocks, clinical and follow-up data were available. The immunohistochemical overexpression of AQP1 was defined as ≥50% of tumor cells showing membranous staining. Six cases showed AQP1 expression in ≥50% of tumor cells; in this group, a significant association of AQP1 overexpression with an increased median overall survival (OS) of 26.3 months was observed. By contrast, four patients exhibited an AQP1 score of <50% of stained cells, with a shorter median OS of 8.9 months. The present study represents further confirmation of the hypothesized prognostic role of AQP...Continue Reading

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Citations

Jun 27, 2019·Biomarkers in Medicine·Caterina LeddaVenerando Rapisarda
Mar 31, 2019·Pathology Oncology Research : POR·Mahdieh-Sadat Moosavi, Yalda Elham
Jul 3, 2021·International Journal of Environmental Research and Public Health·Giuseppe BroggiRosario Caltabiano
Oct 6, 2020·Thoracic Surgery Clinics·Harvey I PassChandra M Goparaju

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