nampt inhibitorlinker 2

NAMPT inhibitor-linker 2, a drug-linker conjugate for antibody-drug conjugates (ADCs), comprises an NAMPT inhibitor payload and a linker. When combined with an anti-c-Kit monoclonal antibody to form ADC-4, it demonstrates potent efficacy against c-Kit expressing cell lines, including GIST-T1 and NCI-H526, with IC50 values of <7 pM and 40 pM, respectively.

Nampt degrader-2, a fluorescent PROTAC, exhibits efficient degradation of NAMPT at an IC50 of 41.9 nM. It operates by binding to both NAMPT and VHL, initiating the formation of a ternary complex that triggers NAMPT degradation through the ubiquitin-proteasome system (UPS). This activity significantly lowers NAD+ levels and displays potent antitumor effects [1].