PMID- 21600179 OWN - NLM STAT- MEDLINE DCOM- 20111205 LR - 20181201 IS - 0376-2491 (Print) IS - 0376-2491 (Linking) VI - 91 IP - 10 DP - 2011 Mar 15 TI - [Growth and migration of umbilical cord mesenchymal stem cells on polycarbonate membrane with different pore sizes]. PG - 699-702 AB - OBJECTIVE: To observe the growth and migration of human umbilical cord mesenchymal stem cells (hUCMSCs) on polycarbonate membrane with different pore sizes and explore the criteria of selecting optimal Transwell insert for indirect co-culture to induce the differentiation of hUCMSCs. METHODS: hUCMSCs were isolated in vitro and then expanded in culture medium. After the treatment of mitomycin C, the cells were seeded on porous membranes of 6-well-dish Transwell inserts with different pore sizes of 0.4, 3.0 and 8.0 microm respectively. After culturing for 7 days, the cells were observed and counted on the bottom of each porous membrane. Then the calculation of migration ratio was performed. The growth and migration of hUCMSCs on porous membranes were also examined under scanning electron microscope (SEM). RESULTS: The migration ratios of hUCMSCs on membranes of 0.4, 3.0 and 8.0 microm pore sizes were 0, 1.8% and 8.0% respectively. The migration ratio of cells on 0.4 microm pore size membrane was statistically different from that of the other two pore size groups (P < 0.01). Under SEM, a small portion of cells were growing on the bottoms of membranes and moving through the pores. But there was no cell movement through 0.4 microm pore size membrane. CONCLUSIONS: hUCMSCs can migrate through the polycarbonate membranes of 3.0 microm and 8.0 microm pore sizes but not through the 0.4 microm one. Thus both sides of polycarbonate membrane of 0.4 microm pore size may be used for close indirect co-culture to induce the differentiation of hUCMSCs. FAU - Li, Dong-jie AU - Li DJ AD - Department of Burns & Plastic Surgery, First Affiliated Hospital of PLA General Hospital, Beijing 100048, China. FAU - Chai, Jia-ke AU - Chai JK FAU - Han, Yan-fu AU - Han YF FAU - Sun, Tian-jun AU - Sun TJ FAU - Deng, Hu-ping AU - Deng HP FAU - Zhao, Jing-yu AU - Zhao JY FAU - Liu, Ling-ying AU - Liu LY LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Yi Xue Za Zhi JT - Zhonghua yi xue za zhi JID - 7511141 RN - 0 (Polycarboxylate Cement) RN - 25766-59-0 (polycarbonate) SB - IM MH - Cell Culture Techniques MH - *Cell Differentiation MH - Cell Movement MH - Cells, Cultured MH - Coculture Techniques MH - Humans MH - Mesenchymal Stem Cells/*cytology MH - *Polycarboxylate Cement MH - Umbilical Cord/cytology EDAT- 2011/05/24 06:00 MHDA- 2011/12/13 00:00 CRDT- 2011/05/24 06:00 PHST- 2011/05/24 06:00 [entrez] PHST- 2011/05/24 06:00 [pubmed] PHST- 2011/12/13 00:00 [medline] PST - ppublish SO - Zhonghua Yi Xue Za Zhi. 2011 Mar 15;91(10):699-702.