CD133, OCT4, and NANOG in ulcerative colitis-associated colorectal cancer

被引：24

作者：

Yasuda, Hiromi ^{[1
]}

Tanaka, Koji ^{[1
]}

Okita, Yoshiki ^{[1
]}

Araki, Toshimitsu ^{[1
]}

Saigusa, Susumu ^{[1
]}

Toiyama, Yuji ^{[1
]}

Yokoe, Takeshi ^{[1
]}

Yoshiyama, Shigeyuki ^{[1
]}

Kawamoto, Aya ^{[1
]}

Inoue, Yasuhiro ^{[1
]}

Miki, Chikao ^{[1
]}

Kusunoki, Masato ^{[1
,2
]}

机构：

[1] Mie Univ, Grad Sch Med, Dept Gastrointestinal & Pediat Surg, Div Reparat Med,Inst Life Sci, Tsu, Mie 5148507, Japan

[2] Mie Univ, Grad Sch Med, Dept Innovat Surg, Div Reparat Med,Inst Life Sci, Tsu, Mie 5148507, Japan

来源：

ONCOLOGY LETTERS | 2011年 / 2卷 / 06期

关键词：

CD133; OCT4; NANOG; ulcerative colitis-associated colorectal cancer; ulcerative colitis; STEM-CELLS; EXPRESSION; GENE; MUTATIONS; MARKER; RISK; INFLAMMATION; PROGRESSION; NEOPLASIA;

D O I：

10.3892/ol.2011.415

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Stem cells are thought to contribute to tissue regeneration as well as carcinogenesis. Ulcerative colitis-associated colorectal cancer (UC-CRC) has shown distinct characteristics compared with those of sporadic CRC. The aim of this study was to evaluate the expression of stem cell markers CD133, OCT4 and NANOG in UC-CRC and the inflamed colonic epithelium of UC patients. Total RNAs of UC-CRC (n=6), inflamed colonic epithelium (n=24), sporadic CRC (n=37) and adjacent normal colonic epithelium (n=37) were isolated from formal in-fixed, paraffin-embedded specimens using microdissection techniques in order to purify colonic epithelial cells. Relative mRNA levels of CD133 (PROM), OCT4 (POU5F1) and NANOG were measured using real-time reverse transcription polymerase chain reaction. Three stem cell markers were also investigated immunohistochemically. PROM, POU5F1 and NANOG levels were found to be significantly lower in UC-CRC than in inflamed colonic epithelium of UC patients. By contrast, sporadic CRC showed a significantly higher expression of PROM, POU5F1 and NANOG compared with adjacent normal colonic epithelium. POU5F1 and NANOG levels were significantly lower in UC-CRC than in sporadic CRC. PROM and NANOG levels in inflamed colonic epithelium were significantly higher among younger UC patients (P<0.05). Longer disease duration was significantly associated with lower PROM expression (P=0.0117). No significant difference was found in PROM levels between UC-CRC and inflamed colonic epithelium in patients with longer disease duration. UC-CRC showed different expression profiles of stem cell markers compared with sporadic CRC. Decreases in PROM expression of inflamed colonic epithelium may identify UC patients at high risk for the development of UC-CRC.

引用

页码：1065 / 1071

页数：7

共 25 条

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