eISSN: 1897-4309
ISSN: 1428-2526
Contemporary Oncology/Współczesna Onkologia
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6/2016
vol. 20
 
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abstract:
Original paper

Increased transforming growth factor β and interleukin 10 transcripts in peripheral blood mononuclear cells of colorectal cancer patients

Noyko S. Stanilov
,
Lyuba Miteva
,
Geo Cirovski
,
Spaska A. Stanilova

Contemp Oncol (Pozn) 2016; 20 (6): 458–462
Online publish date: 2017/01/30
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Aim of the study: The ability of immune cells in peripheral blood to produce certain cytokines affects tumour-elicited inflammation. The aim of this study was to investigate the gene expression of interleukin 12A (IL-12A), IL-12B, IL-23A, IL-10, IL-6, transforming growth factor β (TGF-β), HDAC3, and iNOS in peripheral blood mononuclear cells (PBMC) from colorectal cancer (CRC) patients.

Material and methods: The venous blood for PBMC isolation was collected preoperatively and 10 days after surgery, from CRC patients. After isolation of total RNA and synthesis of cDNA, quantitative real-time PCR assays were performed.

Results: Our results demonstrated that among investigated cytokine genes IL-10 and TGF-b were significantly upregulated in patients with CRC compared to the control group, while the expression of IL-23 mRNA was significantly decreased in CRC patients. We observed significantly increased mRNA levels in CRC patients’ PBMC before surgery for IL-10 and TGF-b compared to both postoperative and control groups. We also found a significant upregulation of iNOS in early compared to advanced CRC.

Conclusions: Based on the results we can assume that PBMC gene expression programming in CRC patients drives local differentiation of Th cells towards Treg instead of the Th1 anti-tumour subpopulation.
keywords:

mRNA, cytokine, qPCR, HDAC3, iNOS, Treg, CRC

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