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?(Fig.4d,4d, k). NP-associated drugs THZ1 for 12?days. At the endpoint of this experiment, cells in SeedEZTM scaffold supplied with complete medium were stained with Texas Red?-X phalloidin (Invitrogen), followed by fluorescence imaging (Zeiss). Cell viability in 3D cultures was quantified by an alamarBlue assay (Bio-Rad). Generation of Sar-R HN8 cells Briefly, HN8 cells were treated with IC90 dose of saracatinib (20?M) and maintained in the medium containing IC50 dose of 2?M for 5 generations. The dose was gradually increased by 1?M every 2 or 3 3?weeks until the maximum tolerated dose of 5?M was reached. Solid-Phase Peptide Synthesis Synthesis of…