Journals / Turkish Journal of Gastroenterology / 2006 / Cilt: 17 - Sayı: 1

C-erb B-2, nm23, bcl-2 ve p53 protein belirteçlerinin kolorektal kanser üzerine olan etkileri

Influence of the c-erb B-2, nm23, bcl-2 and p53 protein markers on colorectal cancer

Pages
13–19
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In the patients with tumors expressing c-erb B-2 and p53, recurrences often occurred and both disease-free survival (DFS) and overall survival (OS) in the first two years after surgery were shorter than of the patients with tumors expressing nm23 and bcl-2.

📌 3 Key Takeaways

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Objective & Hypothesis:Background/aims: Under stringent intra-laboratory conditions we evaluated the relationship between the expression of four protein markers and clinicopathologic characteristics of colorectal tumors.
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Key Findings & Data:Methods: 124 patients with colorectal cancer from 1999 to 2002 were assessed.
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Conclusion & Impact:In the patients with tumors expressing c-erb B-2 and p53, recurrences often occurred and both disease-free survival (DFS) and overall survival (OS) in the first two years after surgery were shorter than of the patients with tumors expressing nm23 and bcl-2.
🔬Design:Research Article
📍Scope:2002 Verileri
⚙️Variables:Kolorektal neoplazmlar · Genler · p53

Abstract

Background/aims: Under stringent intra-laboratory conditions we evaluated the relationship between the expression of four protein markers and clinicopathologic characteristics of colorectal tumors. Methods: 124 patients with colorectal cancer from 1999 to 2002 were assessed. Results: The expression of cerb B-2, nm23 and p53 was mostly determined in tumors located in the rectum. However, about 20% of the rectal lesions had bcl-2 expression. p53 and c-erb B-2 expression was significantly demonstrated in the lesions with vascular and lymph node involvement. However, the difference between the markers and staging was not statistically significant (p=0.388, p=0.301). Cerb B-2 and p53 were more frequently expressed in the patients with large tumors (more than 5 cm) with moderate and poor differentiation grade. About half of the tumors expressing c- erb B- 2 and p53 had vascular invasion and more than 70% had N1 and N2 lymphatic invasion as well. In the patients with tumors expressing c-erb B-2 and p53, recurrences often occurred and both disease-free survival (DFS) and overall survival (OS) in the first two years after surgery were shorter than of the patients with tumors expressing nm23 and bcl-2. Conclusion: In this study, c-erb B-2 and p53 were frequently expressed in the Astler- Coller stage C large tumors located in the rectum and a high degree of vascular and lymphatic invasion was observed. In the patients with tumors expressing c-erb B-2 and p53, recurrences were determined more frequently and DFS and OS were shorter than in patients with tumors expressing nm23 and bcl-2. Thus, two different protein markers should be taken into consideration when evaluating the clinical outcome of patients with colorectal cancer.

Özet

Amaç: Kolorektal kanserli hastalarda prognostik değeri olan belirli klinikopatolojik özellikler ile c-erb B-2, nm23, bcl-2 ve p53 protein belirteçleri uygun laboratuvar şartları altında karşılaştırıldı. Yöntem: 1999-2002 tarihleri arasında 124 kolorektal kanserli hasta çalışmaya alındı. Bulgular: C-erb B-2, nm23, p53 varlığı gösteren tümörlerin sıklıkla rektumda yerleşim gösterenler olduğu görüldü. Ama rektal lezyonların ancak %20 sinde bcl-2 görülmüştü. p53 ve c-erb B-2, damarsal ve lenfatik nod yayılımı gösteren tümörlerde daha fazla bulundu. Bu protein belirteçler ile tumor evreleri arasında bulunan fark ise istatistiksel olarak anlamlı değildi (p=0.388, p=0.301). C-erb B2 ve p 53 sıklıkla hem 5 cm’den büyük hemde orta ve kötü diferansiyasyon derecesi gösteren tümörlerde gösterildi. C-erb b-2 ve p53 gösteren tümörlerin yaklaşık yarısı damarsal yayılım gösterirken bunların %70’inden fazlası ise lenfatik yayılım göstermekteydi. Aynı zamanda bu belirteçleri gösteren tümörlerde rekürrens sık olarak gözlenirken, 2 yıllık hastalıksız yaşam ve tüm yaşam süreleri oransal olarak daha kısa bulundu. Sonuç: Çalışmada c-erb B-2 ve p53 ün sıklıkla Astler-Coller evrelemesine göre C evresinde bulunan, rektumda yerleşmiş ve diferansiyasyon derecesi orta ve kötü olan büyük tümörlerde bulunmaktadır ve bu tümörler de belirgin damarsal ve lenfatik yayılım göstermektedir. Bu durum aynı özellikli tümörlerde, rekürrensin ilk iki yıl içerisinde istatistiki olarak belirgin olmasa da görece sık olarak karşımıza çıkmasına ve hastalıksız yaşamın daha kısa olmasına neden olan bir etmen olarak belirmektedir.

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Cite This Article

DEMİRBAŞ, S., SÜCÜLLÜ, İ., YILDIRIM, Ş., ÇELENK, T. (2006). C-erb B-2, nm23, bcl-2 ve p53 protein belirteçlerinin kolorektal kanser üzerine olan etkileri. Turkish Journal of Gastroenterology, Cilt: 17 - Sayı: 1, 13–19. https://ajindex.com/articles/409971

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