Leptomycin A, a metabolite derived from Streptomyces, acts as an inhibitor of CRM1 (exportin 1) and effectively suppresses HIV-1 replication. Compared to Leptomycin B, it exhibits lesser potency. Leptomycin A hampers the interaction between CRM1 and nuclear export signals, effectively hindering the nuclear export of a wide array of proteins.
PKF050-638 inhibits the CRM1-mediated Rev nuclear export by disrupting CRM1-NES interaction. PKF050-638 is an effective and selective inhibitor of HIV-1 Rev (IC50=0.04 μM).
Eltanexor Z-isomer exhibits different inhibitory effects on Z138, MM15, 3T3 cell lines, with IC50s of 100 nM-50 μM, < 100 nM, > 30 μM, respectively.Eltanexor Z-isomer is the less active isomer of KPT-8602. KPT-8602 is a potent CRM1 inhibitor.