Neutralization and clearance of GM-CSF by autoantibodies in pulmonary alveolar proteinosis.
Neutralization and clearance of GM-CSF by autoantibodies in pulmonary alveolar proteinosis.
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DOI:
10.1038/ncomms8375
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发表时间:
2015-06-16
影响因子:
16.6
通讯作者:
Lanzavecchia, Antonio
中科院分区:
文献类型:
--
作者:
Piccoli, Luca;Campo, Ilaria;Fregni, Chiara Silacci;Rodriguez, Blanca Maria Fernandez;Minola, Andrea;Sallusto, Federica;Luisetti, Maurizio;Corti, Davide;Lanzavecchia, Antonio
Pulmonary alveolar proteinosis (PAP) is a severe autoimmune disease caused by autoantibodies that neutralize GM-CSF resulting in impaired function of alveolar macrophages. In this study, we characterize 21 GM-CSF autoantibodies from PAP patients and find that somatic mutations critically determine their specificity for the self-antigen. Individual antibodies only partially neutralize GM-CSF activity using an in vitro bioassay, depending on the experimental conditions, while, when injected in mice together with human GM-CSF, they lead to the accumulation of a large pool of circulating GM-CSF that remains partially bioavailable. In contrast, a combination of three non-cross-competing antibodies completely neutralizes GM-CSF activity in vitro by sequestering the cytokine in high-molecular-weight complexes, and in vivo promotes the rapid degradation of GM-CSF-containing immune complexes in an Fc-dependent manner. Taken together, these findings provide a plausible explanation for the severe phenotype of PAP patients and for the safety of treatments based on single anti-GM-CSF monoclonal antibodies. Autoimmune pulmonary alveolar proteinosis is caused by autoantibodies to GM-CSF. Here the authors show that the individual autoantibodies only partially neutralize GM-CSF and that antibodies to at least three different epitopes are required to block GM-CSF bioavailability.
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影响因子:
27.4
作者:
Behrens F;Tak PP;Østergaard M;Stoilov R;Wiland P;Huizinga TW;Berenfus VY;Vladeva S;Rech J;Rubbert-Roth A;Korkosz M;Rekalov D;Zupanets IA;Ejbjerg BJ;Geiseler J;Fresenius J;Korolkiewicz RP;Schottelius AJ;Burkhardt H
通讯作者:
Burkhardt H
DOI:
10.1164/ajrccm.162.2.9910032
发表时间:
2000-08-01
影响因子:
24.7
作者:
Kitamura, T;Uchida, K;Nakata, K
通讯作者:
Nakata, K
影响因子:
32.4
作者:
Shibata, Y;Berclaz, PY;Trapnell, BC
通讯作者:
Trapnell, BC
影响因子:
15.3
作者:
Puel, Anne;Doeffinger, Rainer;Casanova, Jean-Laurent
通讯作者:
Casanova, Jean-Laurent
DOI:
10.1089/jir.1994.14.301
发表时间:
1994-10-01
期刊:
JOURNAL OF INTERFERON RESEARCH
影响因子:
--
作者:
MONTEROJULIAN, FA;GAUTHEROT, E;BRAILLY, H
通讯作者:
BRAILLY, H