Annexin A2 binds to endosomes following organelle destabilization by particulate wear debris.
Annexin A2 binds to endosomes following organelle destabilization by particulate wear debris.
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DOI:
10.1038/ncomms1754
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发表时间:
2012-03-27
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
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Endosomal functions are contingent on the integrity of the organelle-limiting membrane, whose disruption induces inflammation and cell death. Here we show that phagocytosis of ultrahigh molecular weight polyethylene particles induces damage to the endosomal-limiting membrane and results in the leakage of cathepsins into the cytosol and NLRP3-inflammasome activation. Annexin A2 recruitment to damaged organelles is shown by two-dimensional DIGE protein profiling, endosomal fractionation, confocal analysis of endogenous and annexin A2–GFP transfected cells, and immunogold labelling. Binding experiments, using fluorescent liposomes, confirms annexin A2 recruitment to endosomes containing phagocytosed polyethylene particles. Finally, an increase in cytosolic cathepsins, NLRP3-inflammasome activation, and IL-1 production is seen in dendritic cells from annexin A2-null mice, following exposure to polyethylene particles. Together, the results indicate a functional role of annexin A2 binding to endosomal membranes following organelle destabilization.
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影响因子:
3.8
作者:
Ditaranto-Desimone, K;Saito, M;Yang, AJ
通讯作者:
Yang, AJ
影响因子:
3
作者:
Kremer, JR;Mastronarde, DN;McIntosh, JR
通讯作者:
McIntosh, JR
影响因子:
30.5
作者:
通讯作者:
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DOI:
10.4049/jimmunol.181.7.5035
发表时间:
2008-10-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Babbin BA;Laukoetter MG;Nava P;Koch S;Lee WY;Capaldo CT;Peatman E;Severson EA;Flower RJ;Perretti M;Parkos CA;Nusrat A
通讯作者:
Nusrat A
影响因子:
5.4
作者:
Hornung, Veit;Latz, Eicke
通讯作者:
Latz, Eicke