Background:

IC87114 is a PI(3)Kδ selective inhibitor with IC50 of 50 nM.

It has been reported that IC87114 reduced FMLP-induced PIP3 synthesis and chemotaxis in neutrophils[1]. IC87114 also blocked TNF1α-stimulated elastase exocytosis from neutrophils in a mouse model of inflammation. A role for PI3Kδ in TNFα-induced signaling was demonstrated by a reduction in Akt-phosphorylation and PDK1 enzyme activity upon treatment of this cell type with IC87114 [2]. In human memory T cells, IC87114 largely inhibited T-cell receptor-induced PI(3)K signaling by both naive and effector. Cytokine production in memory T cells was blocked by IC87114 from healthy and allergic donors, or from inflammatory arthritis patients [3].

参考文献:
[1]. Workman P, van Montfort RL. PI(3) kinases: revealing the delta lady. Nat Chem Biol. 2010 Feb;6(2):82-3.
[2]. Puri KD, Doggett TA, Douangpanya J, Hou Y, Tino WT, Wilson T, Graf T, Clayton E, Turner M, Hayflick JS, Diacovo TG. Mechanisms and implications of phosphoinositide 3-kinase delta in promoting neutrophil trafficking into inflamed tissue. Blood. 2004 May 1;103(9):3448-56.
[3]. Soond DR, Bj?rgo E, Moltu K, Dale VQ, Patton DT, Torgersen KM, Galleway F, Twomey B, Clark J, Gaston JS, Taskén K, Bunyard P, Okkenhaug K. PI3K p110delta regulates T-cell cytokine production during primary and secondary immune responses in mice and humans. Blood. 2010 Mar 18;115(11):2203-13.