1. Microgravity as a Tool to Investigate Cancer Induction in Pleura Mesothelial Cells
- Author
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Valentina Bonetto, Corinna Anais Pagano, Maurizio Sabbatini, Valeria Magnelli, Massimo Donadelli, Emilio Marengo, and Maria Angela Masini
- Subjects
MeT-5A cells ,BR95 cells ,mesothelioma ,focal contacts ,connexin-43 ,NANOG ,Biology (General) ,QH301-705.5 - Abstract
The present work shows that the exposure of mesothelial cells to simulated microgravity changes their cytoskeleton and adhesion proteins, leading to a cell switch from normal towards tumoral cells. Immunohistochemical and molecular data were obtained from both MeT-5A exposed to simulated microgravity and BR95 mesothelioma cell lines. Simulated microgravity was found to affect the expression of actin, vinculin, and connexin-43, altering their quantitative and spatial distribution pattern inside the cell. The analysis of the tumoral markers p27, CD44, Fibulin-3, and NANOG and the expression of genes related to cancer transformation such as NANOG, CDH-1, and Zeb-1 showed that the simulated microgravity environment led to expression patterns in MeT-5A cells similar to those observed in BR95 cells. The alteration in both quantitative expression and structural organization of the cytoskeleton and adhesion/communication proteins can thus be considered a pivotal mechanism involved in the cellular shift towards tumoral progression.
- Published
- 2024
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