PMID- 32990222 OWN - NLM STAT- MEDLINE DCOM- 20201118 LR - 20201118 IS - 1673-4254 (Print) IS - 2663-0842 (Electronic) IS - 1673-4254 (Linking) VI - 40 IP - 9 DP - 2020 Sep 30 TI - [Human umbilical cord mesenchymal stem cells differentiate into neuron-like cells after induction with B27-supplemented serum-free medium]. PG - 1340-1345 LID - 10.12122/j.issn.1673-4254.2020.09.18 [doi] AB - OBJECTIVE: To evaluate the capacity and efficiency of human umbilical cord mesenchymal stem cells (HUCMSCs) to differentiate into neuron- like cells after induction with B27- supplemented serum- free medium. METHODS: HUCMSCs at passage 4 were cultured for 14 days with serum-containing medium (SCM) (group A), SCM supplemented with 20 ng/mL nerve growth factor (NGF) and 10 ng/mL basic fibroblast growth factor (bFGF) (group B), serum-free medium (SFM) (group C), or SFM supplemented with 20 ng/mL NGF and 10 ng/mL bFGF. The culture medium were changed every 3 days and the growth of the neurospheres was observed using an inverted microscope. The cell markers were analyzed with flow cytometry and the expressions of nestin, neuron- specific enolase (NSE), neurofilament heavy polypeptide (NEFH), and glial fibrillary acidic protein (GFAP) were quantified by quantitative real-time PCR (qRT-PCR) and Western blotting. RESULTS: Before induction, HUCMSCs expressed abundant mesenchymal stem cell surface markers including CD29 (99.5%), CD44 (49.6%) and CD105 (77.7%). Neuron-like cells were observed in the cultures on days 7, 10, and 14, and the cell differentiation was the best in group D, followed by groups C, B and A. In all the 4 groups, the cellular expressions of nestin and GFAP gradually lowered while those of NEFH and NSE increased progressively. The expressions of GFAP, NEFH, nestin and NSE were significantly different between group A and the other 3 groups (P < 0.001 or 0.05). CONCLUSIONS: B27-supplemented SFM effectively induces the differentiation of HUCMSCs into neuron- like cells, and the supplementation with cytokines (NGF and bFGF) strongly promotes the cell differentiation. FAU - Li, Yunyi AU - Li Y AD - First Affiliated Hospital of Jinan University, Guangzhou 510632, China. FAU - Yang, Jinpei AU - Yang J AD - First Affiliated Hospital of Jinan University, Guangzhou 510632, China. FAU - Fu, Guo AU - Fu G AD - First Affiliated Hospital of Jinan University, Guangzhou 510632, China. FAU - Zhou, Pan AU - Zhou P AD - First Affiliated Hospital of Jinan University, Guangzhou 510632, China. FAU - Liu, Yang AU - Liu Y AD - First Affiliated Hospital of Jinan University, Guangzhou 510632, China. FAU - Li, Zhizhong AU - Li Z AD - Shenhe Hospital Affiliated to Jinan University, Heyuan 517000, China. FAU - Jiao, Genlong AU - Jiao G AD - First Affiliated Hospital of Jinan University, Guangzhou 510632, China. LA - chi PT - Journal Article PL - China TA - Nan Fang Yi Ke Da Xue Xue Bao JT - Nan fang yi ke da xue xue bao = Journal of Southern Medical University JID - 101266132 SB - IM MH - Cells, Cultured MH - Dietary Supplements MH - Humans MH - *Mesenchymal Stem Cells MH - Neurons MH - Umbilical Cord PMC - PMC7544586 OTO - NOTNLM OT - differentiation OT - human umbilical cord mesenchymal stem cells OT - neuron-like cells OT - serum-free medium EDAT- 2020/09/30 06:00 MHDA- 2020/11/20 06:00 PMCR- 2020/09/20 CRDT- 2020/09/29 09:20 PHST- 2020/09/29 09:20 [entrez] PHST- 2020/09/30 06:00 [pubmed] PHST- 2020/11/20 06:00 [medline] PHST- 2020/09/20 00:00 [pmc-release] AID - nfykdxxb-40-9-1340 [pii] AID - 10.12122/j.issn.1673-4254.2020.09.18 [doi] PST - ppublish SO - Nan Fang Yi Ke Da Xue Xue Bao. 2020 Sep 30;40(9):1340-1345. doi: 10.12122/j.issn.1673-4254.2020.09.18.