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Expressions of CYP and GST Isoenzymes in Human Gastric Tumor and Non-Tumor Tissues
- Publication Year :
- 2018
- Publisher :
- Akad Doktorlar Yayinevi, 2018.
-
Abstract
- In this study we investigated the immunohistochemical staining characteristics of cytochrome P450 1A1 (CYP1A1), CYPB1, CYP2E1 and glutathione S-transferase P1 (GSTP1), GSTT1, GSTO1, GSTK1 isoenzymes in gastric tumor and surrounding tumor free (normal) gastric tissues from 40 patients. For immunohistochemical studies, tissues were obtained from 40 patients with gastric adenocarcinoma. Tumor and non-tumoral control tissues of patients were compared according to their staining intensity. Relationships between CYP and GST isoenzyme expressions in adenocarcinoma tissues were examined by the Mann Whitney-U test, and the clinicopathological data were examined by the Spearman’!s Rank Correlation test. CYP1B1, GSTT1, GSTO1 and GSTK1 expressions in gastric cancer cells were significantly higher than those in gastric normal epithelial cells (p< 0.05). However, CYP1A1, CYP2E1 and GSTP1 expressions were not significantly higher in tumor epithelium than those in normal epithelium in human gastric adenocancer (p< 0.05). Among the studied CYPs and GSTs, there was not statistically significant association between the studied isoenzyme expressions and age, gender and tumor grade (p> 0.05). In patients with gastric adenocarcinoma, CYP1B1, GSTO1, GSTT1, and GSTK1 protein expressions are higher in tumor than normal gastric tissues. © 2018, UHOD - Uluslararasi Hematoloji Onkoloji Dergisi. All rights reserved. Bu çalışmada, 40 gastrik kanser hastasında, tümörlü ve tümör periferinde bulunan normal dokularında sitokrom P450 1A1 (CYP1A1), CYPB1, CYP2E1 ve glutatyon S-transferaz P1 (GSTP1), GSTT1, GSTO1, GSTK1 izozimlerinin immünohis¬tokimyasal boyanma özellikleri araştırılmıştır. İmmünohistokimyasal çalışmalar için dokular, gastrik adenokarsinomalı 40 hastadan elde edildi. Hastaların tümör ve normal kontrol dokuları boyama yoğunluğuna göre karşılaştırıldı. Adenokarsinoma dokularında CYP ve GST izoenzimlerinin ekspresyonları arasındaki ilişki Mann Whitney-U testi ile ve klinikopatolojik veriler Spearman korelasyon rank testi ile incelendi. Gastrik kanserli dokularda CYP1B1, GSTT1, GSTO1 ve GSTK1 ekspresyonlarının normal dokulara oranla daha fazla olduğu istatistiksel olarak anlamlı bulundu (p< 0.05). Fakat, CYP1A1, CYP2E1 ve GSTP1 ekspresyonlarının normal dokulara oranla daha az olduğu istatistiksel olarak anlamlı bulundu (p< 0.05). Çalışılan CYP ve GST izozimlerinin ekspresyonları ile yaş ve cinsiyet arasında istatistiksel olarak anlamlı bir ilişki bulunamadı (p> 0.05). Gastrik adenokarsinomalı hastalarda, CYP1B1, GSTO1, GSTT1 ve GSTK1 protein ekspresyonları tümörlü dokuda, normal gastrik dokulardan daha yüksektir.
- Subjects :
- 0301 basic medicine
Glutathione-S-transferase
Glutatyon-S-Transferaz
Gastric adenocarcinoma
business.industry
Hematology
Isozyme
Tumor tissue
Onkoloji
digestive system diseases
03 medical and health sciences
030104 developmental biology
0302 clinical medicine
Oncology
030220 oncology & carcinogenesis
Cytochrome P450 enzymes
Cancer research
Medicine
Gastric tumor
Gastrik Adenokarsinoma
business
Sitokrom P450 Enzimleri
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....33a1517abc0e953977e249a405bfc177