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Назив: Potential dual immunomodulatory role of VEGF in ulcerative colitis and colorectal carcinoma
Аутори: Zdravković N.
Jovanovic I.
Radosavljevic, Gordana
Arsenijevic A.
Zdravković N.
Mitrovic B.
Arsenijevic, Nebojsa
Часопис: International Journal of Medical Sciences
Датум издавања: 2-јул-2014
Сажетак: Objective. Progression from ulcerative colitis (UC) toward colorectal carcinoma (CRC) is multistep process that includes gene alterations of tumor suppressor genes, such as p53 and p16. The aim of this study was to investigate the expression patterns of p16, p53 and VEGF in affected tissue and serum levels of cytokines TNF-α, IFN-γ, IL-4, IL-6, IL-10 and IL-17 in patients with UC and CRC, respectively. Matherials and methods. Serum levels of cytokine in patients with UC (n=24) and CRC (n=75) and in a healthy group (n=37) were analyzed by ELISA. Endoscopic biopsies specimens of UC and CRC were studied by immunohistochemical staining for p16, p53 and VEGF. Results. Patients with UC with presence of extraintestinal manifestations, complications, and positive staining of p16, p53 and VEGF respectively had higher serum levels of pro-inflammatory cytokines. Higher percentage of CRC patients had positive staining of p16, p53 and VEGF. CRC patients with positive staining of VEGF had decreased systemic values of pro-inflammatory IFN-γ and increased values of immunosuppressive IL-10. Conclusions. Relatively low IL-10 in patients with severe UC is insufficient to compensate IL-6 secretion and subsequently enhanced type 1/17 immune response. In UC patients, p16 and p53 induce enhanced VEGF expression and subsequent production of pro-inflammatory TNF-α and IL-6. In CRC patients VEGF seems to have immunosuppressive role. It appears that tumor suppressor gene-VEGF axis have dual role on immune response in inflammation of UC and tumor growth and progression of CRC. © Ivyspring International Publisher.
URI: https://scidar.kg.ac.rs/handle/123456789/9338
Тип: article
DOI: 10.7150/ijms.8277
ISSN: 14491907
SCOPUS: 84903900133
Налази се у колекцијама:Faculty of Medical Sciences, Kragujevac

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