PMID- 22410147 OWN - NLM STAT- MEDLINE DCOM- 20121130 LR - 20151119 IS - 1879-1506 (Electronic) IS - 0003-9969 (Linking) VI - 57 IP - 9 DP - 2012 Sep TI - Application of eGFP to label human periodontal ligament stem cells in periodontal tissue engineering. PG - 1241-50 LID - 10.1016/j.archoralbio.2012.02.017 [doi] AB - OBJECTIVES: To establish human periodontal ligament stem cells (hPDLSC) with high and stable expression of enhanced green fluorescent protein (eGFP) and to obtain an ideal vector expression system that suitable for gene therapy in periodontal tissue engineering. METHODS: hPDLSCs were transfected with eGFP for 48h via different MOI (25, 50, 100, 200 and 400) by lentiviral vector, the transfection efficiency was evaluated by fluorescent microscopy and flow cytometry, and transfected hPDLSCs proliferation was evaluated by MTT. Pluripotent, differentiation capacity and ALP expression status were determined further. Osteoblast-associated genes expressions for osteogenesis were evaluated by quantitative-PCR. In addition, rat molar periodontal fenestration defect model was used for evaluating periodontal tissue engineering. RESULTS: The transfection efficiency after 48h were 44.7%, 60.9%, 71.7%, 85.8%, and 86.9% respectively. There was no significant effect of transfection (at different MOI levels of 25, 50, 100, and 200) on the proliferation of hPDLSCs (designated as eGFP-hPDLSCs) compared with hPDLSCs (P>0.05). However, proliferation of eGFP hPDLSCs at MOI 400 became slower (P<0.05). Both eGFP hPDLSCs and hPDLSCs were able to differentiate into osteocytes and adipocytes under certain conditioned media. At 7 days, expression levels of COL-1, RUNX2 in hPDLSCS were higher than those in eGFP hPDLSCs (P<0.05); expression levels of ALP and OPN in eGFP hPDLSCs were similar to those in hPDLSCs (P>0.05). Newly regenerated bone formation was observed in the defect model used. CONCLUSIONS: Among the transfection conditions, 48h transfection at MOI 200 is optimal for labelling hPDLSCs with eGFP in a lentiviral vector. There is no change in capability of the eGFP hPDLSCs osteogenesis. The lentiviral vector with eGFP is an appropriate expression vector system and hPDLSCs are ideal seeding cells for gene therapy in periodontal tissue engineering. CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved. FAU - Wen, Yong AU - Wen Y AD - School of Stomatology, Shandong University, No. 44-1 Wenhua Xi Road, Jinan, Shandong, PR China. wenyongsdu@yahoo.com.cn FAU - Lan, Jing AU - Lan J FAU - Huang, Haiyun AU - Huang H FAU - Yu, Meijiao AU - Yu M FAU - Cui, Jun AU - Cui J FAU - Liang, Jin AU - Liang J FAU - Jiang, Baoqi AU - Jiang B FAU - Xu, Xin AU - Xu X LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120310 PL - England TA - Arch Oral Biol JT - Archives of oral biology JID - 0116711 RN - 0 (Collagen Type I) RN - 0 (Core Binding Factor Alpha 1 Subunit) RN - 0 (Fluorescent Dyes) RN - 0 (Osteoprotegerin) RN - 0 (RUNX2 protein, human) RN - 0 (TNFRSF11B protein, human) RN - 0 (enhanced green fluorescent protein) RN - 147336-22-9 (Green Fluorescent Proteins) RN - EC 3.1.3.1 (Alkaline Phosphatase) SB - IM MH - Adipocytes/physiology MH - Adipogenesis/physiology MH - Alkaline Phosphatase/analysis MH - Alveolar Bone Loss/surgery MH - Animals MH - Bone Regeneration/physiology MH - Cell Culture Techniques MH - Cell Differentiation/physiology MH - Cell Proliferation MH - Collagen Type I/analysis MH - Core Binding Factor Alpha 1 Subunit/analysis MH - Disease Models, Animal MH - *Fluorescent Dyes MH - *Genetic Therapy MH - Genetic Vectors/genetics MH - *Green Fluorescent Proteins MH - Humans MH - Lentivirus/genetics MH - Osteoblasts/cytology MH - Osteocytes/physiology MH - Osteogenesis/physiology MH - Osteoprotegerin MH - Periodontal Ligament/*cytology MH - Pluripotent Stem Cells/cytology MH - Rats MH - Rats, Sprague-Dawley MH - Stem Cells/*cytology MH - *Tissue Engineering MH - Transfection EDAT- 2012/03/14 06:00 MHDA- 2012/12/10 06:00 CRDT- 2012/03/14 06:00 PHST- 2011/11/04 00:00 [received] PHST- 2012/02/07 00:00 [revised] PHST- 2012/02/13 00:00 [accepted] PHST- 2012/03/14 06:00 [entrez] PHST- 2012/03/14 06:00 [pubmed] PHST- 2012/12/10 06:00 [medline] AID - S0003-9969(12)00065-9 [pii] AID - 10.1016/j.archoralbio.2012.02.017 [doi] PST - ppublish SO - Arch Oral Biol. 2012 Sep;57(9):1241-50. doi: 10.1016/j.archoralbio.2012.02.017. Epub 2012 Mar 10.