3D TECA 1 4',6 diamidino 2 phenylindole 1 5 ethynyl 2' deoxyuridine 1 Article 1 Cellular senescence 1 Centella asiatica 1 Centella asiatica extract 1 DNA synthesis 1 Fibroblast migration 1 SA-β-gal TNF-α 1 beta galactosidase 1 cell aging 1 cell migration 1 cell proliferation 1 chromatin 1 chromatin condensation 1 controlled study 1 deoxyuridine derivative 1 drug design 1 drug effect 1 enzyme activity 1 fibroblast 1 fibroblast culture 1 fluorescent dye 1 histochemistry 1 human 1 human cell 1 hydrogel 1 in vitro study 1