nuclear export

Leptomycin B (LMB) is a potent inhibitor of the nuclear export of proteins and is a potent antifungal antibiotic blocking the eukaryotic cell cycle. Leptomycin B inactivates CRM1/exportin 1 by covalent modification at a cysteine residue.

KPT-251 is a selective nuclear export inhibitor.

GNF4877 is a small molecule inhibitor, a potent dual-specificity kinase inhibitor targeting DYRK1A (IC50=6 nM) and GSK3β (IC50=16 nM). This compound promotes β-cell proliferation by blocking NFATc nuclear export (EC50=0.66 μM for mouse R7T1 cells) and is primarily used for research on β-cell regeneration related to diabetes.

Eltanexor (ONO-7706) is an orally active exportin-1 (XPO1) inhibitor. It has effective anti-leukemic activity. Eltanexor inhibits XPO1-dependent nuclear export (EC50=60.9 nM) by directly targeting XPO1. Eltanexor causes caspase-dependent apoptosis in a panel of leukemic cell lines.

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.

CBS9106 (SL-801) is a reversible oral CRM1 inhibitor with CRM1 degrading and antitumor activity.CBS9106 inhibits CRM1-dependent nuclear export and reduces CRM1 protein levels.CBS9106 inhibits tumor growth and prolongs the survival of mice bearing tumor xenografts.CBS9106 is an inhibitor of CRM1-dependent nuclear export and reduces CRM1 protein levels.

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).

(E)-KPT330 is a CRM1-selective inhibitor of nuclear export. It inhibits protein trafficking from the nucleus and induces cell cycle arrest and apoptosis in mesothelioma cells.

Psammaplysene A is a FOXO1a nuclear export inhibitor.

Psammaplysene B is a FOXO1a nuclear export inhibitor.

(E)-Guggulsterone is an isomer of guggulsterone. As an FXR antagonist, it reduces blood lipids, induces heme oxygenase-1 expression, blocks DENV NS2B/3B activity, and inhibits DENV replication.

KPT276 (KPT 276) is an orally bioavailable selective inhibitor of nuclear export (SINE) that irreversibly bind to CRM1 and block the function of CRM1.

TTC-352 is an orally bioavailable selective human estrogen receptor alpha (ERalpha; ESR1; ERa) partial agonist (ShERPA), with potential antineoplastic activity. Upon administration, TTC-352 mimics the naturally-occurring 17beta-estradiol (E2) and targets and binds to ERa located in the nucleus. This causes translocation of ERa to extranuclear sites. Nuclear export of ERa prevents normal ER-mediated signaling and inhibits proliferation of ER-positive tumor cells.

CRM1-IN-1 (Compound KL1), a noncovalent inhibitor of CRM1, promotes nuclear degradation of CRM1 with an IC50 of 0.27 μM, inhibits CRM1-mediated nuclear export, suppresses cell proliferation, and induces apoptosis in colorectal cancer cells [1].

CRM1-IN-2 (Compound KL2) is a noncovalent inhibitor of CRM1, localizing it to the nuclear periphery, reducing its nuclear presence, and inhibiting its nuclear export function. It effectively inhibits the growth of colorectal cancer cells and induces apoptosis [1].

Anti-Influenza agent 5 (Compound IIB-2), a chalcone-like derivative, serves as an influenza nuclear export inhibitor, effectively inhibiting oseltamivir-resistant strains and hindering viral proliferation by obstructing the export of influenza virus nucleoprotein [1].