“…Like with liposomes, the majority of these utilize APIs loaded into a lipophilic core, including pirfenidone (a drug used to treat pulmonary fibrosis) ( Singh et al, 2019 ), MDB5 (a novel form of Hedgehog (Hh) inhibitor GDC-0449) ( Kumar et al, 2019 ), salinomycin (an antibiotic with anti-cancer properties) ( Sousa et al, 2019 ), and doxorubicin (an anthracycline chemotherapeutic) ( Fang et al, 2014 ; Seifi-Najmi et al, 2016 ). Multiple formulations also make use of siRNA targeting genes along the EMT pathway ( Fang et al, 2014 ; Seifi-Najmi et al, 2016 ; Li et al, 2019 ; Suresh et al, 2019 ), including one directly conjugated to PEI to form a polyplex ( Ding et al, 2018 ; Wang Y. et al, 2019 ), as well as an inhibitor of CXCR4 ( Suresh et al, 2019 ), a chemokine receptor involved in the promotion of tumor migration and EMT ( Lin et al, 2018 ). These all resulted in the inhibition of key EMT-biomarkers, including PAI-1, TGF-β, VEGF, Hh, Vimentin, and N-Cadherin.…”