Fig. 1. Cell culture and identification. (A) Spindle-like PDLSCs crawling out from the tissue block, magnification: 4×. (B) Identification of PDLSC multidirectional differentiation: I: PDLSCs with no treatment, magnification: 4×; II: PDLSCs cultured in adipogenic induction medium for 14 days and tested by oil red O staining, magnification: 40×; III: PDLSCs cultured in osteogenic induction medium for 21 days and tested by Alizarin red S staining, magnification: 4×. (C) Identification of PDLSC surface markers: CD73, CD90, CD105, CD31, CD45.

International Journal of Stem Cells 2022;15:372-83 https://doi.org/10.15283/ijsc22024

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