RT Journal Article
SR Electronic
T1 Claudin 10 Is a Glandular Epithelial Marker in the Chicken Model as Human Epithelial Ovarian Cancer
JF International Journal of Gynecologic Cancer
JO Int J Gynecol Cancer
FD BMJ Publishing Group Ltd
SP 1465
OP 1473
DO 10.1111/IGC.0b013e3181fb18e4
VO 20
IS 9
A1 Hee Won Seo
A1 Deivendran Rengaraj
A1 Jin Won Choi
A1 Suzie E. Ahn
A1 Yong Sang Song
A1 Gwonhwa Song
A1 Jae Yong Han
YR 2010
UL http://ijgc.bmj.com/content/20/9/1465.abstract
AB Introduction: The aim of this study was to investigate the expression profiles of claudin (CLDN) gene family members between normal and cancerous ovaries of White Leghorn hens.Methods: For the detection of ovarian cancer, 120-week-old White Leghorn hens (n = 40) that could not produce eggs for at least 2 months were humanely killed, and candidate cancerous ovaries were stained with hematoxylin and eosin. The existence of CLDN genes in normal and cancerous ovaries was confirmed by reverse transcription-polymerase chain reaction (RT-PCR) analysis. Quantitative real-time PCR was performed to investigate the fold change in CLDN1, CLDN5, and CLDN10 messenger RNA (mRNA) expression levels. In situ hybridization was performed to further confirm the localization of CLDN10 mRNA in normal and cancerous ovaries.Results: In total, we obtained 3 normal and 5 cancerous ovaries from the experimental hens. Among the claudin family genes, CLDN1, CLDN5, and CLDN10 were detected in normal and/or cancerous ovaries by RT-PCR analysis. According to quantitative real-time PCR analysis, CLDN1 and CLDN5 mRNA expression levels were not significantly different between normal and cancerous ovaries, whereas the CLDN10 mRNA expression level significantly increased in cancerous ovaries compared with normal ovaries. CLDN10 mRNA was specifically detected in cancerous ovaries.Conclusions: Our study indicates that CLDN10 is a novel biomarker for detecting ovarian cancer in the chicken. We provide new insight into using the chicken as a suitable animal model for investigating the effect and function of CLDN in human ovarian cancer.