1. β-Arrestin-1 expression and epithelial-to-mesenchymal transition in laryngeal carcinoma.
- Author
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Marioni G, Nicolè L, Cappellesso R, Marchese-Ragona R, Fasanaro E, Di Carlo R, La Torre FB, Nardello E, Sanavia T, Ottaviano G, and Fassina A
- Subjects
- Aged, Antigens, CD metabolism, Cadherins metabolism, Carcinoma, Squamous Cell metabolism, Female, Follow-Up Studies, Humans, Laryngeal Neoplasms metabolism, Male, Middle Aged, Prognosis, Survival Rate, Zinc Finger E-box Binding Homeobox 2 metabolism, Zinc Finger E-box-Binding Homeobox 1 metabolism, Biomarkers, Tumor metabolism, Carcinoma, Squamous Cell pathology, Epithelial-Mesenchymal Transition, Laryngeal Neoplasms pathology, beta-Arrestin 1 metabolism
- Abstract
Aim: The novel primary end-point of the present study was to ascertain β-arrestin-1 expression in a cohort of consecutive patients with laryngeal squamous cell carcinoma (LSCC) with information available on their cigarette-smoking habits. A secondary end-point was to conduct a preliminary clinical and pathological investigation into the possible role of β-arrestin-1 in the epithelial-to-mesenchymal transition (EMT), identified by testing for E-cadherin, Zeb1, and Zeb2 expression, in the setting of LSCC., Methods: The expression of β-arrestin-1, E-cadherin, zeb1, and zeb2 was ascertained in 20 consecutive LSCCs., Results: Statistical analysis showed no significant associations between β-arrestin-1 and EMT (based on the expression of E-cadherin, Zeb1, and Zeb2). The combined effect of nicotine and β-arrestin-1 was significantly associated with a shorter disease-free survival ( P=0.01) in our series of LSCC. This latter result was also confirmed in an independent, publicly available LSCC cohort ( P=0.047)., Conclusions: Further investigations on larger series (ideally in prospective settings) are needed before we can consider closer follow-up protocols and/or more aggressive treatments for patients with LSCC and a combination of nicotine exposure and β-arrestin-1 positivity in tumor cells at the time of their diagnosis. Further studies on how β-arrestin functions in cancer via different signaling pathways might reveal potential targets for the treatment of even advanced laryngeal malignancies.
- Published
- 2019
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