Journals / Kulak Burun Boğaz Klinikleri / 2000 / Cilt: 2 - Sayı: 3

Prognostic importance of p53 tumor suppressor gene and c-erbB-2 oncogene in laryngeal cancers

Larenks kanserlerinde p53 tümör supresör geni ve c-erbB-2 onkogeninin prognostik önemi

Pages
169–173
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: The findings of this study suggest that p53 overexpression may be a good prognostic factor in laryngeal cancers and that c-erbB-2 expression is probably unrelated to the biological aggressiveness of these tumours.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: The aim of this study was to investigate the prognostic significance of p53 tumor suppression gene and c-erbB-2 proto-oncogene expressions in laryngeal carcinomas.
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Key Findings & Data:Patients and Methods: Paraffin-embedded tissue sections of 37 patients (35 men, 2 women; mean age 60.1 years; range 43-77 years) who underwent surgery for laryngeal squamous cell carcinoma were examined for p53 and c-erbB-2 expression by immunohistochemistry.
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Conclusion & Impact:Conclusion: The findings of this study suggest that p53 overexpression may be a good prognostic factor in laryngeal cancers and that c-erbB-2 expression is probably unrelated to the biological aggressiveness of these tumours.
🔬Design:Research Article
📍Scope:28 specimens
⚙️Variables:Genler · p53 · Proto-onkogen proteinleri

Abstract

Objectives: The aim of this study was to investigate the prognostic significance of p53 tumor suppression gene and c-erbB-2 proto-oncogene expressions in laryngeal carcinomas. Patients and Methods: Paraffin-embedded tissue sections of 37 patients (35 men, 2 women; mean age 60.1 years; range 43-77 years) who underwent surgery for laryngeal squamous cell carcinoma were examined for p53 and c-erbB-2 expression by immunohistochemistry. Results: Overexpression of the p53 protein was found in 70% of patients. This finding was strongly correlated with lymph node status and histological grade (Kruskal Wallis test, p<0.05). On the other hand, c-erbB-2 overexpression was detected in 28 specimens (78%). However, c-erbB-2 immunoreactivity did not show a statistically significant correlation with clinicopathological parameters. Conclusion: The findings of this study suggest that p53 overexpression may be a good prognostic factor in laryngeal cancers and that c-erbB-2 expression is probably unrelated to the biological aggressiveness of these tumours.

Özet

Amaç: Bu çalışmada, p53 tümör supresör geni ve c-erbB-2 onkogen ekspresyonunun larenks karsinomlarında prognostik önemi araştırıldı. Hastalar ve Yöntemler: Larenks karsinomu tanısıyla cerrahi tedavi uygulanan 37 hastanın (35 erkek, 2 kadın; ort. yaş 60.1; dağılım 43-77) parafine gömülü doku kesitlerinde immünhistokimyasal yöntemle p53 ve c-erbB-2 expresyonu incelendi. Bulgular: Olguların %70'inde p53 aşırı ekspresyonu saptandı. p53 pozitifliği ile histolojik derece ve lenf nodu metastazı arasında istatistiksel olarak anlamlı ilişki gözlendi (Kruskal Wallis testi, p<0.05). c-erbB-2 pozitifliği ise 28 olguda (%78) saptandı, c-erbB-2 pozitifliği ile klinik ve histopatolojik parametreler arasında anlamlı ilişki bulunmadı. Sonuç: p53 ekspresyonunun larenks karsinomlarında iyi bir prognostik faktör olabileceği sonucuna varıldı. c-erbB-2 onkogeninin ise, larenks tümörlerinin biyolojik davranışı üzerinde, diğer prognostik faktörlerden bağımsız bir faktör olarak etkili olabileceği düşünüldü.

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Cite This Article

ÇALLI, Ç., ÇALLI, A., AKYILDIZ, S., ŞAHİN, L., TATAR, B., ÖZTÜRK, S. (2000). Prognostic importance of p53 tumor suppressor gene and c-erbB-2 oncogene in laryngeal cancers. Kulak Burun Boğaz Klinikleri, Cilt: 2 - Sayı: 3, 169–173. https://ajindex.com/articles/343402