4.4 Article

Association of subcellular localization of TEAD transcription factors with outcome and progression in pancreatic ductal adenocarcinoma

Journal

PANCREATOLOGY
Volume 21, Issue 1, Pages 170-179

Publisher

ELSEVIER
DOI: 10.1016/j.pan.2020.12.003

Keywords

TEAD; PDAC; Metastasis; Prognosis; Transcription factor

Funding

  1. Guenter Haenisch Foundation

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The study highlights the importance of TEAD transcription factors in PDAC, as nuclear localization was found to be associated with metastatic disease and an unfavorable prognosis after surgical resection.
Background: Transcriptional enhanced associated domain (TEAD) transcription factors are nuclear effectors of several oncogenic signalling pathways including Hippo, WNT, TGF-beta and EGFR pathways that interact with various cancer genes. The subcellular localization of TEAD regulates the functional output of these pathways affecting tumour progression and patient outcome. However, the impact of the TEAD family on pancreatic ductal adenocarcinoma (PDAC) and its clinical progression remain elusive. Methods: A cohort of 81 PDAC patients who had undergone surgery was established. Cytoplasmic and nuclear localization of TEAD1, TEAD2, TEAD3 and TEAD4 was evaluated with the immunoreactive score (IRS) by immunohistochemistry (IHC) using paraffin-embedded tissue. Results were correlated with clinicopathological data, disease-free and overall survival. Results: Nuclear staining of all four TEADs was increased in pancreatic cancer tissue. Patients suffering from metastatic disease at time of surgery showed a strong nuclear staining of TEAD2 and TEAD3 (p < 0.05). Furthermore, a nuclear > cytoplasmic ratio of TEAD2 and TEAD3 was associated with a shorter overall survival and TEAD2 emerged as an independent prognostic factor for disease-free survival. Conclusion: Our study underlines the importance of TEAD transcription factors in PDAC as a nuclear localization was found to be associated with metastatic disease and an unfavourable prognosis after surgical resection. (C) 2020 Published by Elsevier B.V. on behalf of IAP and EPC.Y

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