A novel in vivo regulatory role of P-glycoprotein in alloimmunity.
A novel in vivo regulatory role of P-glycoprotein in alloimmunity.
复制标题
DOI:
10.1016/j.bbrc.2010.03.040
复制
发表时间:
2010-04-09
影响因子:
3.1
通讯作者:
Frank, Markus H.
中科院分区:
文献类型:
--
作者:
Izawa, Atsushi;Schatton, Tobias;Frank, Natasha Y.;Ueno, Takuya;Yamaura, Kazuhiro;Pendse, Shona S.;Margaryan, Armen;Grimm, Martin;Gasser, Martin;Waaga-Gasser, Ana Maria;Sayegh, Mohamed H.;Frank, Markus H.
P-glycoprotein (P-gp) is required for adaptive immunity through defined functions in T cell activation and antigen presenting cell (APC) maturation. The potential role of P-gp as an in vivo regulator of alloimmunity is currently unknown. Here we show that P-gp blockade prolongs graft survival in a murine heterotopic cardiac allotransplantation model through in vivo inhibition of the T helper 1 (Th1) cytokine IFN-γ and the Th2 product IL-4, and via downregulation of the APC-expressed positive costimulatory molecule CD80. In vitro, the P-gp antagonist PSC833, a non-calcineurin-inhibitory cyclosporine A analogue, specifically inhibited cellular efflux of the P-gp substrate rhodamine-123 in wild-type CD3+ T cells and MHC class II+ APCs but not their P-gp knockout counterparts that lacked rhodamine-123 efflux capacity. Additionally, P-gp blockade significantly inhibited murine alloimmune T cell activation in a dose-dependent fashion. In vivo, P-gp blockade significantly prolonged graft survival in Balb/c recipients of C57BL/6 cardiac allografts from 8.5±0.5 to 11.7±0.5 days (P<0.01), similar in magnitude to the effects of monotherapy with cyclosporine A. Moreover, P-gp blockade, compared to controls, attenuated intragraft expression of CD3 and CD80, but not CD86, and inhibited IFN-γ and IL-4 production (P<0.05). In the setting of systemic CD86 inhibition, P-gp blockade suppressed IFN-γ and IL-4 production significantly further (to 98%and 89% inhibition, respectively) compared to either P-gp or anti-CD86 blockade alone, and markedly prolonged allograft survival compared to anti-CD86 blockade alone (40.5±4.6 vs. 22.5±2.6 days, respectively, P<0.01). Our findings define a novel in vivo regulatory role of P-gp in alloimmunity and identify P-gp as a potential therapeutic target in allotransplantation.
登录
查看更多内容
DOI:
10.1084/jem.181.5.1869
发表时间:
1995-05-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Sayegh MH;Akalin E;Hancock WW;Russell ME;Carpenter CB;Linsley PS;Turka LA
通讯作者:
Turka LA
影响因子:
11.2
作者:
Schatton T;Schütte U;Frank NY;Zhan Q;Hoerning A;Robles SC;Zhou J;Hodi FS;Spagnoli GC;Murphy GF;Frank MH
通讯作者:
Frank MH
影响因子:
4.8
作者:
Frank, NY;Pendse, SS;Frank, MH
通讯作者:
Frank, MH
影响因子:
20.3
作者:
Drach, J;Gsur, A;Huber, H
通讯作者:
Huber, H
影响因子:
11.2
作者:
Frank, NY;Margaryan, A;Frank, MH
通讯作者:
Frank, MH