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High expression of P2X7R is an independent postoperative indicator of poor prognosis in colorectal cancer.
Qian, Fei; Xiao, Jianjia; Hu, Baoying; Sun, Naizhi; Yin, Wei; Zhu, Jianwei.
Afiliação
  • Qian F; Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China.
  • Xiao J; Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China.
  • Hu B; Basic Medical Research Centre, Medical College, Nantong University, Nantong, 226001, China.
  • Sun N; Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China.
  • Yin W; Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China.
  • Zhu J; Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China. Electronic address: usazhujianwei@aliyun.com.
Hum Pathol ; 64: 61-68, 2017 06.
Article em En | MEDLINE | ID: mdl-28412208
ABSTRACT
The purinergic P2X7 receptor (P2X7R) is a master regulator of inflammation and inflammation-related diseases. Recently, P2X7R has been reportedly involved in carcinogenesis and tumor progression. In this study, we investigated the expression pattern and prognostic merit of P2X7R in human colorectal cancer (CRC). The expression profile of P2X7R in 12 pairs of CRC and non-tumorous specimens was evaluated using Western blotting analysis. Additionally, we performed immunohistochemistry (IHC) on 116 paraffin-embedded CRC specimens, and evaluated the correlation between P2X7R expression and clinicopathological factors. P2X7R was overexpressed in CRC samples, compared with adjacent non-tumorous ones. High P2X7R expression significantly correlated with tumor size (P = .0177), Lymph node metastasis (P = .0128), and TNM stage (P = .0081). Furthermore, univariate and multivariate Cox regression analyses revealed that P2X7R expression could serve as an independent prognostic factor for poor overall survival (P = .0197). Treatment with P2X7R agonist BzATP led to the activation of Akt and NF-κB pathways. Consequently, we revealed that BzATP accelerated the proliferation of CRC cells, whereas co-incubation with PI3K/Akt inhibitor LY294002 significantly impaired BzATP-induced proliferation of CRC cells. Our findings implied that P2X7R may serve as a valuable prognostic indicator and promising therapeutic target of CRC.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias Colorretais / Biomarcadores Tumorais / Receptores Purinérgicos P2X7 Tipo de estudo: Etiology_studies / Prognostic_studies / Risk_factors_studies Limite: Female / Humans / Male / Middle aged Idioma: En Revista: Hum Pathol Assunto da revista: PATOLOGIA Ano de publicação: 2017 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias Colorretais / Biomarcadores Tumorais / Receptores Purinérgicos P2X7 Tipo de estudo: Etiology_studies / Prognostic_studies / Risk_factors_studies Limite: Female / Humans / Male / Middle aged Idioma: En Revista: Hum Pathol Assunto da revista: PATOLOGIA Ano de publicação: 2017 Tipo de documento: Article País de afiliação: China