Expression of myeloid cell triggering receptor-1 in monocytes at early post-burn stage.
- Author:
An-jie MIN
1
;
Pi-hong ZHANG
;
Mu-zhang XIAO
;
Li-cheng REN
;
Ming-hua ZHANG
;
Li-qing YUE
;
Xiao-yuan HUANG
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Burns; blood; Female; Humans; Interleukin-1; blood; Male; Membrane Glycoproteins; metabolism; Middle Aged; Monocytes; metabolism; Myeloid Cells; RNA, Messenger; metabolism; Receptors, Immunologic; metabolism; Triggering Receptor Expressed on Myeloid Cells-1; Tumor Necrosis Factor-alpha; blood
- From: Chinese Journal of Burns 2007;23(4):276-279
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the expression of triggering receptor expressed on myeloid cells (TREM-1) in monocytes of burn patients at early post-burn stage, and its significance.
METHODSThe monocytes of 8 healthy volunteers (A group), 29 patients with mild and moderate burn (B group), and 9 patients with severe and very serious burns (C group) were isolated from the blood, and the THEM-1 mRNA and protein expression were determined by semi-quantitative RT-PCR and flow cytometry, respectively. The plasma levels of TNF-alpha, IL-1beta were determined by ELISA method.
RESULTSThe value of TREM-1 mRNA expression in A, B and C groups were 0.74 +/- 0.13, 1.24 +/- 0.09, and 1.46 +/-0.07, respectively, and the expression rates on cell surface in the 3 groups were (9 +/- 4)%, (51 +/- 6)%, and (71 +/- 7)%, respectively, and there were significant differences among the three groups (P = 0.000). the plasma levels of TNF-alpha and IL-1beta in B and C groups were obviously higher than that in A group (P = 0.000), and they were positively correlated to TREM-1 expression (rs = 0.68, 0.72, P = 0.000).
CONCLUSIONIncreased expression of TREM-1 in monocytes of burn patients at early post-burn stage is correlated with the release of inflammatory factors, indicating that TREM-1 might contribute to the onset and development of acute inflammatory response after burns.
