Figure 4. Immunofluorescence study. Renal proximal tubular epithelial cells (RPTECs) were incubated under normoxic conditions (A), hypoxic conditions (B), CoCl2 (C), or polyIC treatment (D) for 6 h. Hypoxia and CoCl2 resulted in HIF1α migration into the nucleus. The fluorescence was weaker than the others, but similar results were obtained with polyIC treatment.
