Nexpovio (Selinexor) - Oral Exportin 1 (XPO1) Inhibitor

NEXPOVIO is a first-in-class, oral exportin 1 (XPO1) inhibitor. XPO1 is a nuclear exporter protein that transport from the nucleus to the cytoplasm several proteins, including tumor suppressors, oncogenes, and proteins involved in governing cell growth; it is often overexpressed, and its function mis-regulated in several types of cancers. By inhibiting the XPO1 protein, tumor suppressors proteins buildup in the nucleus of malignant cells and reduce levels of oncogene products which drive cell proliferation. This ultimately leads to cell cycle arrest and death of cancer cells by apoptosis.