LY411575

γ-Secretase is a multi-subunit aspartyl protease that regulates signaling pathways by proteolytically cleaving substrates, abrogating or releasing signaling molecules. One well-known substrate of this enzyme is Notch, a transmembrane receptor that plays a key role in cell fate decisions including cell proliferation, differentiation, and apoptosis. LY411575 is a cell-permeable γ-secretase inhibitor (IC50 = 0.14 nM) that has been shown to block Notch activation in vitro at 500 µM. LY411575 can induce apoptosis in Kaposis sarcoma cells as well as promote intestinal goblet cell differentiation in...