MITOTIC ACTIVITY, P53 AND BCL-2 PROTEIN IMMUNOREACTIVITY DIFFERENCE BETWEEN

Volume: 45 Number: 1 March 1, 2006
  • Yeşim Ertan
  • Saliha Soydan
  • Murat Tombuloğlu
  • Seçkin ÇAĞIRGAN Ayhan Dönmez
  • Güray Saydam
  • Mine Hekimgil
EN TR

MITOTIC ACTIVITY, P53 AND BCL-2 PROTEIN IMMUNOREACTIVITY DIFFERENCE BETWEEN

Abstract

The aim of this study is to assess the antiapoptotic bcl-2 gene protein and p53 tumor supressor gene protein immunoreactivity difference between the morphological variants and subtypes of diffuse large B cell lymphoma (DLBCL) and the relationship between the aforementioned proteins, mitotic activity and survival. In this retrospective study, we examined the pathologic material which were diagnosed as non-Hodkin lymphoma (NHL) from January 1995 to December 2001 in our pathology department. Among these lymphomas, 123 cases were diagnosed as DLBCL. Of 123 cases, we were able to analyze the morphological variants and subtype, mitotic activity and the expression of p53 and bcl-2 proteins in only 53 cases of which in 31 cases clinical data were available. We examined the relation of aforementioned parameters and survival of these 31 cases. The diagnosis of DLBCL was established according to the criteria referred in World Health Organization (WHO) classification. Of 53 cases, 22 (41.5%) were centroblastic, 13 (24.5%) anaplastic, 7 (13.3%) immunoblastic, 6 (11.3%) T cell rich B cell lymphoma (TCRBCL) and 5 (9.4%) primary mediastinal B cell lymphoma (PMBCL). We had no cases diagnosed as plasmablastic lymphoma and lymphomatoid granulomatosis. We found some relationships between the morphological variants and subtype of DLBCL and mitotic activity, the expression of p53 and bcl-2 proteins: The expression of p53 protein was observed more frequently in anaplastic lymphomas compared to TCRBCL (92.3% versus 16.7%, p< 0.0008). The expression of bcl-2 protein was observed more frequently in immunoblastic lymphoma compared to anaplastic lymphoma (85.7% versus 53.8%, p< 0.001). In centroblastic lymphoma, median mitotic activity was higher and mitotic figures higher than 20 were observed more frequently. In DLBCL, with or without subclassification, no correlation was found between survival and p53, bcl-2 expression and mitotic activity.

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Primary Language

Turkish

Subjects

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Journal Section

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Authors

Yeşim Ertan

Saliha Soydan

Murat Tombuloğlu

Seçkin ÇAĞIRGAN Ayhan Dönmez

Güray Saydam

Mine Hekimgil

Publication Date

March 1, 2006

Submission Date

March 1, 2006

Acceptance Date

-

Published in Issue

Year 2006 Volume: 45 Number: 1

Vancouver
1.Yeşim Ertan, Saliha Soydan, Murat Tombuloğlu, Seçkin ÇAĞIRGAN Ayhan Dönmez, Güray Saydam, Mine Hekimgil. DİFFÜZ BÜYÜK B HÜCRELİ LENFOMA MORFOLOJİK VARYANT VE ALTGRUPLARINDA MİTOTİK AKTİVİTE, P53 VE BCL-2 PROTEİN iMMUNREAKTİVİTE FARKLILIĞI. EJM [Internet]. 2006 Mar. 1;45(1):5-11. Available from: https://izlik.org/JA48HX37XX

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