Inhibition of Bromodomain and Extra Terminal (BET) Domain Activity Modulates the IL-23R/IL-17 Axis and Suppresses Acute Graft-Versus-Host Disease.
Inhibition of Bromodomain and Extra Terminal (BET) Domain Activity Modulates the IL-23R/IL-17 Axis and Suppresses Acute Graft-Versus-Host Disease.
复制标题
DOI:
10.3389/fonc.2021.760789
复制
发表时间:
2021
影响因子:
4.7
通讯作者:
Ranganathan P
中科院分区:
文献类型:
--
作者:
Snyder KJ;Choe HK;Gao Y;Sell NE;Braunreiter KM;Zitzer NC;Neidemire-Colley L;Kalyan S;Dorrance AM;Keller A;Mihaylova MM;Singh S;Sehgal L;Bollag G;Ma Y;Powell B;Devine SM;Ranganathan P
Acute graft-versus-host disease (GVHD) is the leading cause of non-relapse mortality following allogeneic hematopoietic cell transplantation. The majority of patients non-responsive to front line treatment with steroids have an estimated overall 2-year survival rate of only 10%. Bromodomain and extra-terminal domain (BET) proteins influence inflammatory gene transcription, and therefore represent a potential target to mitigate inflammation central to acute GVHD pathogenesis. Using potent and selective BET inhibitors Plexxikon-51107 and -2853 (PLX51107 and PLX2853), we show that BET inhibition significantly improves survival and reduces disease progression in murine models of acute GVHD without sacrificing the beneficial graft-versus-leukemia response. BET inhibition reduces T cell alloreactive proliferation, decreases inflammatory cytokine production, and impairs dendritic cell maturation both in vitro and in vivo. RNA sequencing studies in human T cells revealed that BET inhibition impacts inflammatory IL-17 and IL-12 gene expression signatures, and Chromatin Immunoprecipitation (ChIP)-sequencing revealed that BRD4 binds directly to the IL-23R gene locus. BET inhibition results in decreased IL-23R expression and function as demonstrated by decreased phosphorylation of STAT3 in response to IL-23 stimulation in human T cells in vitro as well as in mouse donor T cells in vivo. Furthermore, PLX2853 significantly reduced IL-23R+ and pathogenic CD4+ IFNγ+ IL-17+ double positive T cell infiltration in gastrointestinal tissues in an acute GVHD murine model. Our findings identify a role for BET proteins in regulating the IL-23R/STAT3/IL-17 pathway. Based on our preclinical data presented here, PLX51107 will enter clinical trial for refractory acute GVHD in a Phase 1 safety, biological efficacy trial.
登录
查看更多内容
影响因子:
8
作者:
Jeschke JC;Mayne CG;Ziegelbauer J;DeCiantis CL;Singh S;Kumar SN;Suchi M;Iwakura Y;Drobyski WR;Salzman NH;Williams CB
通讯作者:
Williams CB
影响因子:
7.3
作者:
Ghimire S;Weber D;Mavin E;Wang XN;Dickinson AM;Holler E
通讯作者:
Holler E
影响因子:
8.8
作者:
Bolden JE;Tasdemir N;Dow LE;van Es JH;Wilkinson JE;Zhao Z;Clevers H;Lowe SW
通讯作者:
Lowe SW
影响因子:
2.7
作者:
Benjamini, Yoav;Krieger, Abba M.;Yekutieli, Daniel
通讯作者:
Yekutieli, Daniel
影响因子:
4.3
作者:
Erkes, Dan A.;Field, Conroy O.;Aplin, Andrew E.
通讯作者:
Aplin, Andrew E.