PENG Yong, et al. Expression of Toll like receptor 4 and MD-2 gene and protein in Kupffer cellsfollowing ischemia-reperfusion injury in rat liver transplant[J]. Journal of Chongqing Medical University, 2004,(6):711-714.
PENG Yong, et al. Expression of Toll like receptor 4 and MD-2 gene and protein in Kupffer cellsfollowing ischemia-reperfusion injury in rat liver transplant[J]. Journal of Chongqing Medical University, 2004,(6):711-714. DOI: 10.13406/j.cnki.cyxb.2004.06.002.
Objective:To study the expression of Toll like receptor 4(TLR4) and MD-2 gene and protein in Kupffer cells and its role in ischemia-reperfusion injury (IRI) on rat liver graft.Methods:The Kupffer cells were isolated at 0(control group)
2
12
24h (IR group)following IR.The mRNA and protein expressions of TLR4 and MD-2 were detected by RT-PCR and flow cytometry (FCM)
respectively.The TNF-α level in supernatant was measured by ELISA.Then the isolated KCs were incubated with anti-TLR4 polyclonal antibody (anti-TLR4 group)
and the TNF-α level were measured again.Results: The mRNA and protein expressions of TLR4/MD-2 and the level of TNF-α in IR group increased significantly following IR compared with those in control group( P <0.01).The TNF-α production was greatly inhibted after anti-TLR4 antibody treatment (compared with IR group
P <0.01).Conclusion:TLR4 and its partner molecule MD-2 may take an important part in the Kupffer cell activation and IRI.
关键词
肝移植缺血再灌注损伤Toll样受体4Kupffer细胞
Keywords
liver transplantationischemia-reperfusion injuryToll like receptor 4Kupffer cell