Fig. 4

The colony-forming unit-fibroblast (CFU-F) assay of human fallopian tube mesenchymal stem cells (hFTMSCs) and human fallopian tube mucosa mesenchymal stem cells (hFMMSCs). a The cells were plated at a density of 1,000 cells per well and cultured for 15 days in six-well plates. b The cells were stained with crystal violet dye (0.1 %), and cell colonies with more than 40 cells were counted (×100). c The cells were plated at a density of 1,000 per well, and the percentage plating efficiency ([number of colonies counted/number of cells plated] ×100 %) of hFMMSCs was higher compared with hFTMSCs