A combination of 2D and 3D cell cultures for a smart and effective identification and characterization of anti-hypoxic candidates

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Hypoxia is a prominent feature of different solid tumor types. A central component of hypoxic adaptation is the stabilization of hypoxia-inducible factor-1 (HIF-1), a key transcriptional regulator of hypoxia that orchestrates the transcriptional regulation of genes involved in a plethora of cellular processes. Considering the multiple roles of HIF-1 in cancer, interest in novel small-molecule inhibitors of the HIF-1 pathway has steadily increased over the past 10 years. However, despite extensive research, no specific inhibitor of HIF-1 has been brought to the market, making the field still ripe for further exploration. The goal of the present work is to utilize the potential of a combination of 2D and 3D cellular models for identification and characterization of inhibitors of HIF-1 and/or HIF-1 pathway by screening in 2D cultures, and lightsheet microscopy and mass spectrometry studies in spheroid cultures.