Structure–activity studies of a series of dipyrazolo[3,4- b :3′,4′- d ]pyridin-3-ones binding to the immune regulatory protein B7.1
摘要:
The interaction of co-stimulatory molecules on T cells with 137 molecules on antigen presenting cells plays an important role in the activation of naive T cells. Consequently, agents that disrupt these interactions should have applications in treatment of transplant rejection as well as autoimmune diseases. To this end, specific small molecule inhibitors of human B7.1 were identified and characterized. Herein, we report the identification of potent small molecule inhibitors of the B7.1-CD28 interaction. In a high-throughput screen we identified several leads that prevented the interaction of B7.1 with CD28 with activities in the nanomolar to low micromolar range. One of these, the dihydrodipyrazolopyridinone 1, was subsequently shown to bind the V-like domain of human B7.1 at equimolar stoichiometry. With this as a starting point, we report here the synthesis and initial in vitro structure-activity relationships of a series of these compounds. (C) 2003 Elsevier Science Ltd. All rights reserved.
Structure–activity studies of a series of dipyrazolo[3,4- b :3′,4′- d ]pyridin-3-ones binding to the immune regulatory protein B7.1
摘要:
The interaction of co-stimulatory molecules on T cells with 137 molecules on antigen presenting cells plays an important role in the activation of naive T cells. Consequently, agents that disrupt these interactions should have applications in treatment of transplant rejection as well as autoimmune diseases. To this end, specific small molecule inhibitors of human B7.1 were identified and characterized. Herein, we report the identification of potent small molecule inhibitors of the B7.1-CD28 interaction. In a high-throughput screen we identified several leads that prevented the interaction of B7.1 with CD28 with activities in the nanomolar to low micromolar range. One of these, the dihydrodipyrazolopyridinone 1, was subsequently shown to bind the V-like domain of human B7.1 at equimolar stoichiometry. With this as a starting point, we report here the synthesis and initial in vitro structure-activity relationships of a series of these compounds. (C) 2003 Elsevier Science Ltd. All rights reserved.
The present invention provides a compound of formula I and the use thereof for the immunotherapeutic treatment of transplant rejection, autoimmune disease or graft vs. host disease.
1
本发明提供了一种I式化合物及其用于免疫治疗移植排斥、自身免疫疾病或移植物抗宿主病的用途。
Structure–activity studies of a series of dipyrazolo[3,4- b :3′,4′- d ]pyridin-3-ones binding to the immune regulatory protein B7.1
作者:Neal J. Green、Jason Xiang、Jing Chen、Lihren Chen、Audrey M. Davies、Dave Erbe、Steve Tam、James F. Tobin
DOI:10.1016/s0968-0896(03)00183-4
日期:2003.7
The interaction of co-stimulatory molecules on T cells with 137 molecules on antigen presenting cells plays an important role in the activation of naive T cells. Consequently, agents that disrupt these interactions should have applications in treatment of transplant rejection as well as autoimmune diseases. To this end, specific small molecule inhibitors of human B7.1 were identified and characterized. Herein, we report the identification of potent small molecule inhibitors of the B7.1-CD28 interaction. In a high-throughput screen we identified several leads that prevented the interaction of B7.1 with CD28 with activities in the nanomolar to low micromolar range. One of these, the dihydrodipyrazolopyridinone 1, was subsequently shown to bind the V-like domain of human B7.1 at equimolar stoichiometry. With this as a starting point, we report here the synthesis and initial in vitro structure-activity relationships of a series of these compounds. (C) 2003 Elsevier Science Ltd. All rights reserved.