eISSN: 1644-4124
ISSN: 1426-3912
Central European Journal of Immunology
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4/2012
vol. 37
 
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abstract:

Clinical immunology
Glutamine abolishes the TLR4 gene expression levels in pancreatic cancer patients: a preliminary study

Sylwia Kędziora
,
Robert Słotwiński
,
Aleksandra Dąbrowska
,
Gustaw Lech
,
Maciej Słodkowski
,
Ireneusz W. Krasnodębski
,
Waldemar L. Olszewski

(Centr Eur J Immunol 2012; 37 (4): 350-354)
DOI: https://doi.org/10.5114/ceji.2012.32724
Online publish date: 2013/02/10
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Aim of the study: The purpose of the study was to investigate the effect of pancreatic cancer and preoperative enteral immune-enhancing diet (immunonutirtion) on the expression of TLR4 gene in leukocytes of the malnourished patients with pancreatic cancer.

Material and methods: Sixteen malnourished patients with pancreatic cancer received for 5 days preoperative enteral immune-enhancing diet containing glutamine (20 γ per day), antioxidative vitamins and trace elements (GlutaminePlus, Fresenius Kabi). The expression of TLR-4 gene in leukocytes of peripheral blood was measured in all patients twice before surgery (before and after immunonutrition) and ones after surgery. The control group comprised 15 healthy sex- and age-matched volunteers.

Results: The expression of TLR-4 gene in leukocytes of pancreatic cancer patients before surgery was significantly higher as compared to the healthy volunteers. Expression of TLR-4 gene significantly decreased after preoperative immunonutrition with glutamine. After surgery expression of TLR-4 gene in leukocytes decreased insignificantly as compared to expression at day before surgery but this decrease abolished the significant differences of TLR-4 gene expression between group of pancreatic cancer patients and control group.

Conclusions: The high expression level of TLR-4 gene in leukocytes of pancreatic cancer patients may reveal the up-regulation of the innate antibacterial response. This disorders may contribute to increased susceptibility to postoperative infectious and septic complications. Preoperative enteral supplementation of glutamine by decreasing TLR-4 expression may reduce of susceptibility to infectious and septic complications in pancreatic cancer patients.
keywords:

pancreatic cancer, glutamine, Toll-like receptor, gene expression
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