Isolation and differentiation of nestin positive cells from rat oral mucosal lamina propria.
Despite successes in the isolation and characterization of stem cells from the oral mucosal epithelium, there have been few studies on progenitor cells from the oral mucosal lamina propria. In this study, we isolate rat oral mucosal lamina propria cells (OMLPC) using nestin as a marker in an immunomagnetic sorting technique. The OMLPCs was negative for cytokeratin. Nestin and vimentin were expressed in the OMLPCs. And CD44 and STRO-1 were expressed in a subset of the OMLPCs, which suggest that the nestin positive OMLPCs be heterogeneous. Otherwise, OMLPCs express Oct4, which is a critical gene for pluripotency. The OMLPCs proliferated actively in vitro. A colony forming study demonstrated that OMLPCs exhibited colony-generating capacity. When cultured in defined medium, OMLPCs generated cells characteristic of osteoblast, adipocyte and astrocyte-like cells. In addition, OMLPCs seeded into three dimensional scaffolds form bone-like structures in vivo after 8 weeks. All of the results demonstrate that OMLPCs are a population of mesenchymal progenitor cells existing in rat oral mucosal lamina propria. Nestin is shown to be a useful molecular marker for these cells. In certain environments, OMLPCs can form hard tissue. Thus, OMLPCs may serve as a suitable source of cells for future bone or tooth tissue engineering applications.
Dong
Rui
R
Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, Hubei 430079, China.
Liu
Xiaoliang
X
Fan
Mingwen
M
Yang
Ling
L
Peng
Lin
L
Zhang
Lu
L
D017667:Adipocytes / Q000378:metabolism; D000818:Animals; D001253:Astrocytes / Q000378:metabolism; D015415:Biomarkers / Q000378:metabolism; D002454:Cell Differentiation / Q000502:physiology*; D019070:Cell Lineage; D002469:Cell Separation; D002478:Cells, Cultured; D007124:Immunoenzyme Techniques; D018189:Immunomagnetic Separation; D007381:Intermediate Filament Proteins / Q000378:metabolism*; D007633:Keratins / Q000378:metabolism; D059630:Mesenchymal Stem Cells / Q000378:metabolism*; D009061:Mouth Mucosa / Q000166:cytology* / Q000378:metabolism; D009419:Nerve Tissue Proteins / Q000378:metabolism*; D064231:Nestin; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D051381:Rats; D017207:Rats, Sprague-Dawley; D020133:Reverse Transcriptase Polymerase Chain Reaction; D014746:Vimentin / Q000378:metabolism
D015415:Biomarkers; D007381:Intermediate Filament Proteins; D009419:Nerve Tissue Proteins; C577486:Nes protein, rat; D064231:Nestin; D012333:RNA, Messenger; D014746:Vimentin; D007633:Keratins