[Retracted] ACE2 Promotes the Synthesis of Pulmonary Surfactant to Improve AT II Cell Injury via SIRT1/eNOS Pathway

Figure 1

Differentiation of hUC-MSCs to AT II cells in vitro. (a): qRT-PCR was applied to detect the mRNA levels of AT II cell markers (CK-8, KGF) and PS (SP-A, SP-B, SP-C, and SP-D) at different time points. (b) The cell morphology image was captured in white-light vision, with a scale bar of 50 μm. (c) IF images showed the AT II cell markers including SP-C (red), CK-8 (green), and nuclear (blue), with a scale bar of 50 μm. (d) ICC on differentiated cells was shown to be strongly positive for SP-A (brown), with a scale bar of 50 μm. ; .

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