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. 2011:2011:692858.
doi: 10.5402/2011/692858. Epub 2010 Oct 7.

Regulatory Effect of Peptidoglycan on the Expression of Toll-Like Receptor 2 mRNA and Proteins in Trophoblast Cell Line TEV-1 Cells

Yi Wang  1 , Xi-Ping Luo, Chi Eung Danforn Lim, Wu Shun Felix Wong, Gang Zhong
Affiliations

Regulatory Effect of Peptidoglycan on the Expression of Toll-Like Receptor 2 mRNA and Proteins in Trophoblast Cell Line TEV-1 Cells

Yi Wang et al. ISRN Obstet Gynecol. 2011.

Abstract

Objective. To investigate the regulatory effect of peptidoglycan on the expression of human Toll-like receptors 2 (TLR2) mRNA and proteins in the human extravillous trophoblast cell line (TEV-1). Methods. TEV-1 cells were incubated with different doses of peptidoglycan. The expression of TLR2 mRNA and protein was detected by reverse transcriptase-polymerase chain reaction (RT-PCR) and immunocytochemistry SP staining. Results. TLR2 was expressed in TEV-1 cells and localized to both the cytoplasm and plasma membrane. Compared with the untreated control, TEV-1 cells incubated with 30 μg/ml peptidoglycan significantly upregulated the expression of TLR2 mRNA and protein after 12 hours of treatment (P < .01). However, the expression of TLR2 mRNA and protein was decreased but had no significant difference compared with the control (P > .05) after 24 hours of treatment. On the other hand, 10 μg/ml peptidoglycan did not seem to have regulatory effect on mRNA and protein expression of TLR2 (P > .05). Conclusion. Peptidoglycan has a role in regulating the expression of TLR2 mRNA and protein in TEV-1 cells. It suggests that the trophoblast cells may play important role in the immune response at the fetal-maternal interface and affect the result of pregnancy by expressing TLR2.

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Figures

Figure 1
Figure 1
The expression of TLR2 mRNA in TEV-1 cells.
Figure 2
Figure 2
The expression of TLR2 protein in TEV-1 cells (immunocytochemistry SP × 200).
See this image and copyright information in PMC

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