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. 2020 Nov 23;8:603577. doi: 10.3389/fchem.2020.603577

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Copyright © 2020 Liang, Shi, Xu, Chai and Xu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Cellular behavior on different scaffolds. (A) Cell adhesion activity of PGS-P and L-PGS-P scaffolds illustrated in a 40x magnification picture. (B) The proliferation rate of the two kinds of adhered cells on day 1, 3, and 7 was tested using an MTT assay. (C) Cell infiltration was observed by DAPI staining. L-PGS-P scaffold supports cell infiltration of HUVECs in vitro; 20x magnification picture was captured at cross section. (D) Representative images of tube formation for 6 h with different medium from scaffolds soak liquid (soak for 7 days). **P < 0.01, compare with control group at different time point.