Plasmin immunization preferentially induces potentially prothrombotic IgG anticardiolipin antibodies in MRL/MpJ mice.
Plasmin immunization preferentially induces potentially prothrombotic IgG anticardiolipin antibodies in MRL/MpJ mice.
复制标题
纤溶酶免疫优先在 MRL/MpJ 小鼠中诱导潜在的促血栓形成 IgG 抗心磷脂抗体。
DOI:
10.1002/art.24818
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发表时间:
2009
影响因子:
--
通讯作者:
Chen,PojenP
中科院分区:
文献类型:
--
作者:
Ede,Kaleo;Hwang,Kwan-Ki;Wu,Chen-Ching;Wu,Meifang;Yang,Yao-Hsu;Lin,Wei-Shiang;Chien,Daniel;Chen,Pei-Chih;Tsao,BettyP;McCurdy,DeborahK;Chen,PojenP
ObjectiveTo test the hypothesis, utilizing 2 experimental mouse models, that plasmin is an important autoantigen that drives the production of certain IgG anticardiolipin (aCL) antibodies in patients with the antiphospholipid syndrome.MethodsBALB/cJ and MRL/MpJ mice were immunized with Freund's complete adjuvant in the presence or absence of human plasmin. The mouse sera were analyzed for production of IgG antiplasmin, IgG aCL, and IgG anti–β2‐glycoprotein I (anti‐β2GPI) antibodies. IgG monoclonal antibodies (mAb) were generated from the plasmin‐immunized MRL/MpJ mice with high titers of aCL, and these 10 mAb were studied for their binding properties and functional activity in vitro.ResultsPlasmin‐immunized BALB/cJ mice produced high titers of IgG antiplasmin only, while plasmin‐immunized MRL/MpJ mice produced high titers of IgG antiplasmin, IgG aCL, and IgG anti‐β2GPI. Both strains of mice immunized with the adjuvant alone did not develop IgG antiplasmin or IgG aCL. All 10 of the IgG mAb bound to human plasmin and cardiolipin, while 4 of 10 bound to β2GPI, 3 of 10 bound to thrombin, and 4 of 10 bound to the activated coagulation factor X (FXa). Functionally, 4 of the 10 IgG mAb inhibited plasmin activity, 1 of 10 hindered inactivation of thrombin by antithrombin III, and 2 of 10 inhibited inactivation of FXa by antithrombin III.ConclusionPlasmin immunization leads to production of IgG antiplasmin, aCL, and anti‐β2GPI in MRL/MpJ mice, but leads to production of only IgG antiplasmin in BALB/cJ mice. IgG mAb generated from plasmin‐immunized MRL/MpJ mice bind to various antigens and exhibit procoagulant activity in vitro. These results suggest that plasmin may drive potentially prothrombotic aCL in genetically susceptible individuals.
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影响因子:
3.5
作者:
E. Harris;S. Pierangeli;David Birch
通讯作者:
David Birch
影响因子:
3.2
作者:
P. D. de Groot;R. Derksen
通讯作者:
R. Derksen
DOI:
10.4049/jimmunol.177.11.8219
发表时间:
2006-12
期刊:
The Journal of Immunology
影响因子:
--
作者:
Yao-Hsu Yang;K. Hwang;J. Fitzgerald;J. Grossman;Mihaela B. Taylor;B. Hahn;Pojen P. Chen
通讯作者:
Yao-Hsu Yang;K. Hwang;J. Fitzgerald;J. Grossman;Mihaela B. Taylor;B. Hahn;Pojen P. Chen
DOI:
--
发表时间:
1997
期刊:
The Lancet
影响因子:
--
作者:
R. Roubey;M. Hoffman
通讯作者:
M. Hoffman
影响因子:
4.4
作者:
A. Tincani;L. Spatola;E. Prati;F. Allegri;P. Ferremi;R. Cattaneo;P. Meroni;G. Balestrieri
通讯作者:
G. Balestrieri