The correlation of EMT and p53 immunohistochemical markers with cisplatin resistance in muscle invasive bladder cancer patients: A single-centred study

Paramanantham, Yogaambikai and Said, Nur Akmarina B. M. and Mun, Kein Seong (2023) The correlation of EMT and p53 immunohistochemical markers with cisplatin resistance in muscle invasive bladder cancer patients: A single-centred study. Malaysian Journal of Pathology, 45 (1). pp. 19-29. ISSN 0126-8635,

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Official URL: https://www.mjpath.org.my/2023/v45n1/muscle-invasi...

Abstract

Introduction: Although epithelial-mesenchymal transition (EMT) and p53 have been established to play a pivotal role in the aggressiveness of muscle-invasive bladder cancer (MIBC), its pathological correlation to cisplatin treatment in the Malaysian patient cohort is lacking. This study aimed to evaluate the association of EMT markers, e-cadherin, vimentin and actin, as well as tumour suppressor gene, p53, in cisplatin-receiving MIBC patients. Materials and Methods: Formalin-fixed paraffinembedded (FFPE) blocks of muscle-invasive bladder cancer patients receiving cisplatin-based chemotherapy between January 2010 to December 2020 were traced. Immunohistochemistry staining was performed on traced blocks using antibodies to e-cadherin, vimentin and actin, and p53. Results: p53 and e-cadherin were stained positive in most cases (p=0.515 and 0.242 respectively), although e-cadherin showed stronger positive expression in pre-cisplatin receiving MIBC cases. All the cases stained negative for actin and vimentin except for faint staining observed in one pre-cisplatin case. Conclusion: Although this study does not show a significant correlation between EMT markers and p53 with cisplatin-responsiveness in MIBC patients, the results serve as preliminary findings on the heterogeneous outcomes of molecular staining in the Malaysian MIBC patient cohort.

Item Type: Article
Funders: Malaysian Ministry of Higher Education: Impact -Oriented Interdisciplinary Research Grant Programme IIRG (IIRG022A-2019), Malaysian Ministry of Higher Education: Fundamental Research Grant Scheme FRGS (10770) ; (FRGS/1/2016/SKK08/UM/02/22)
Uncontrolled Keywords: Muscle -invasive bladder cancer; epithelial-mesenchymal transition; cisplatin resistance
Subjects: R Medicine > R Medicine (General)
R Medicine > RB Pathology
Divisions: Faculty of Medicine > Pathology Department
Faculty of Pharmacy > Department of Pharmaceutical Life Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 22 Jul 2025 00:55
Last Modified: 22 Jul 2025 00:55
URI: http://eprints.um.edu.my/id/eprint/50836

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