635324-58-2Relevant articles and documents
Synthesis and Structure-Affinity Relationship of Small Molecules for Imaging Human CD80 by Positron Emission Tomography
Taddio, Marco F.,Mu, Linjing,Castro Jaramillo, Claudia A.,Bollmann, Tanja,Schmid, Dominik M.,Muskalla, Lukas P.,Gruene, Tim,Chiotellis, Aristeidis,Ametamey, Simon M.,Schibli, Roger,Kr?mer, Stefanie D.
, p. 8090 - 8100 (2019/10/11)
The costimulatory molecule CD80 is an early marker for immune activation. It is upregulated on activated antigen-presenting cells. We aimed at developing a tracer for imaging CD80 by positron emission tomography (PET). Novel CD80 ligands were synthesized
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
Green, Neal J.,Xiang, Jason,Chen, Jing,Chen, Lihren,Davies, Audrey M.,Erbe, Dave,Tam, Steve,Tobin, James F.
, p. 2991 - 3013 (2007/10/03)
The interaction of co-stimulatory molecules on T cells with B7 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.