Costimulation blockade alters germinal center responses and prevents antibody-mediated rejection.
Costimulation blockade alters germinal center responses and prevents antibody-mediated rejection.
复制标题
共刺激阻碍改变了生发中心的反应,并防止抗体介导的排斥反应。
DOI:
10.1111/ajt.12526
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发表时间:
2014-01
期刊:
影响因子:
--
通讯作者:
Knechtle SJ
中科院分区:
文献类型:
--
作者:
Kim EJ;Kwun J;Gibby AC;Hong JJ;Farris AB 3rd;Iwakoshi NN;Villinger F;Kirk AD;Knechtle SJ
De novo donor-specific antibody (DSA) after organ transplantation promotes antibody-mediated rejection (AMR) and causes late graft loss. Previously, we demonstrated that depletion using anti-CD3 immunotoxin (IT) combined with tacrolimus and alefacept (AMR regimen) reliably induced early DSA production with AMR in a nonhuman primate kidney transplant model. Five animals were assigned as positive AMR controls, four received additional belatacept, and four received additional anti-CD40 mAb (2C10R4R4). Notably, production of early de novo DSA was completely attenuated with additional belatacept or 2C10R4R4 treatment. In accordance with this, while positive controls experienced a decrease in peripheral IgM+ B cells, bela- and 2C10R4-added groups maintained a predominant population of IgM+ B cells, potentially indicating decreased isotype switching. Central memory T cells (CD4+CD28+CD95+) as well as PD1hiCD4+ T cells were decreased in both bela-added and 2C10R4-added groups. In analyzing germinal center (GC) reactions in situ, lymph nodes further revealed a reduction of B cell clonal expansion, GC-Tfh cells, and IL-21 production inside germinal centers with additional belatacept or 2C10R4 treatment. Here we provide evidence that belatacept and 2C10R4 selectively suppresses the humoral response via regulating follicular helper T cells and prevents AMR in this non-human primate model.
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DOI:
10.4049/jimmunol.1103138
发表时间:
2012-04-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Hong JJ;Amancha PK;Rogers K;Ansari AA;Villinger F
通讯作者:
Villinger F
影响因子:
7
作者:
McHeyzer-Williams LJ;Pelletier N;Mark L;Fazilleau N;McHeyzer-Williams MG
通讯作者:
McHeyzer-Williams MG
影响因子:
8.8
作者:
Hidalgo, L. G.;Campbell, P. M.;Halloran, P. F.
通讯作者:
Halloran, P. F.
影响因子:
3.8
作者:
Haggerty, Helen G.;Proctor, Stanley J.
通讯作者:
Proctor, Stanley J.
影响因子:
15.9
作者:
Petrovas, Constantinos;Yamamoto, Takuya;Koup, Richard A.
通讯作者:
Koup, Richard A.