A different perspective to the tumor microenvironment in periampullary cancers: a neglected ring in tumorogenesis.

Year 2019, , 1 - 8, 25.01.2019

Mehmet Zengin

https://doi.org/10.32322/jhsm.453541

Abstract

Aim: There is increasing evidence that, tumor microenvironment plays an important role in the initiation and progression of the tumor and is not only a passive observer. In this study the immunohistochemical staining pattern of the stromal cells in tumor microenvironment which is rarely discussed in the literature, has been demonstrated by considering p53 and HSF1 which are important molecular proteins in tumorogenesis.

Material and Method: Sixty-nine pancreaticoduodenectomy specimens that performed between 2000 and 2012 were re-evaluated in terms of HSF1/P53 expressions in tumor microenvironment and tumoral cells. The findings were statistically analyzed.

Results: In our study, there was a significant difference between tumoral microenvironment and tumoral cells in terms of HSF1 staining (p<0.05). For P53, this difference was observed in pancreatic carcinomas (p<0.05), whereas were not observed in ampullary region carcinomas (p>0.05).

Conclusions: Significant staining of two well-known immunomarkers, such as P53 and HSF1, in stromal cells has further increased the importance of tumor microenvironment in tumorogenesis. 

Keywords

Tumor microenvironment, pancreas, ampullary, P53

Periampuller kanserlerde tümör mikroçevresine farklı bir bakış açısı: tümörojenezde ihmal edilmiş bir halka

Abstract

Amaç: Tümör
mikroçevresinin tümörün başlamasında ve ilerlemesinde önemli bir rol oynadığına
ve sadece pasif bir gözlemci olmadığına dair kanıtlar artmaktadır. Bu çalışmada
literatürde nadiren tartışılan tümör mikroçevresindeki stromal hücrelerin immünohistokimyasal
boyanma paterni, tümörogenezde önemli moleküler proteinler olan p53 ve HSF1 ele
alınarak gösterilmiştir.

Gereç ve Yöntem: 2000 ve 2012 yılları arasında yapılan 60 pankreatikoduodenektomi
spesmeni, tümör mikroçevresin ve tümöral hücrelerde HSF1/P53 ekspresyonu
açısından tekrar değerlendirildi. Bulgular istatistiksel olarak analiz edildi.

Bulgular:
Çalışmamızda, tümör mikroçevresi ve tümöral hücreler arasında HSF1 boyaması
açısından anlamlı bir fark vardı (p<0.05). P53 için bu fark pankreatik
karsinomlarda (p <0.05) gözlenirken, ampullar bölge karsinomlarında
gözlenmedi (p> 0.05).

Sonuçlar: P53 ve HSF1
gibi iki iyi bilinen immünmarkerın stromal hücrelerde de belirgin olarak boyanması,
tümör mikroçevresinin tümörogenezdeki önemini daha da artırmıştır.

Keywords

Tümör mikroçevresi, pankreas, ampullary, P53, HSF1

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