9-cis-UAB30 is a rexinoid agonist. 9-cis-UAB30 significantly decreases the proliferation, viability, and motility of both patient-derived xenografts (PDXs). 9-cis-UAB30 induced cell-cycle arrest as demonstrated by the significant increase in the percentage of cells in G1 and a decrease in the percentage of cells in S phase by downregulating SKP2 and/or 20S proteasome activity, which leads to increased p27kip1 protein stability. 9-cis-UAB30 downregulates the abundance of stem cell marker mRNAs (Oct4, Nanog, Sox2, nestin) and upregulates the abundance of differentiation marker mRNAs (β3-tubulin, NSE, HOXC9, GAP43). 9-cis-UAB30 has no adverse effects on the central nervous system and cardiovascular system at the tested dose. 9-cis-UAB30 can be used for the study of neuroblastoma, cutaneous T-cell lymphomas, and breast cancer.
