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Immunocytochemical analysis of HIF-1α protein in hPDLCs. (A) Immunocytochemical location of HIF-1α protein in hPDLCs incubated in a hypoxic atmosphere of 2% O2, 5% CO2, 94% N2 at 37°C. It showed that the expression of PLAP-1 was positive in cytoplasm and nucelus of hPDLCs (A). (B) There was no brown granule in the hPDLCs incubated in a normoxic atmosphere (B).
