Expression data from a reversible dasatinib-resistant state in long-term dasatinib-treated c-KIT-mutated Kasumi-1 cell line

Long-term treatment of Kasumi-1 cells at clinically attained doses of dasatinib led to decreased drug-sensitivity by means of IC50 values (relative to treatment-naive cells). Changes were paralled by profound alterations in c-KIT expression and cell signaling signatures. Upon brief discontinuation of dasatinib treatment, these alterations reversed and drug sensitivity was restored.

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Herrmann MD, Lennerz JK, Bullinger L, Bartholomae S, Holzmann K, Westhoff MA, Corbacioglu S, Debatin KM