Biomaterial Database

[Identification and isolation of human dental pulp stem cells]. 2005

Xue-chao Yang, and Ming-wen Fan

Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China.

OBJECTIVE To isolate and cultivate human dental pulp stem cells (DPSCs). METHODS Pulp tissue was removed from healthy young human teeth extracted for orthodontic purposes. The pulp was digested by Type I collagenase and dispase. Then single-cell suspensions were obtained by filter and cultivated. The clones were identified by expression of STRO-1. Under the conditions of inducement, clones were identified by activity of alkaline phosphatase (ALP), formation of mineralized nodule and expression of dentin sialoprotein (DSP), and by Oil Red-O dyeing and expressing of PPARr2. RESULTS The clones had positive expression of STRO-1. When stimulated to differentiation, these cells took on dramatically high activity of ALP, had the ability of mineralization and expressed DSP. These cells also had ability to trans-differentiate into adipocytes. CONCLUSIONS There are stem cells in human dental pulp tissues, which can be isolated and cultivated.

UI	MeSH Term	Description	Entries
D002454	Cell Differentiation	Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.	Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002469	Cell Separation	Techniques for separating distinct populations of cells.	Cell Isolation,Cell Segregation,Isolation, Cell,Cell Isolations,Cell Segregations,Cell Separations,Isolations, Cell,Segregation, Cell,Segregations, Cell,Separation, Cell,Separations, Cell
D002478	Cells, Cultured	Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.	Cultured Cells,Cell, Cultured,Cultured Cell
D003782	Dental Pulp	A richly vascularized and innervated connective tissue of mesodermal origin, contained in the central cavity of a tooth and delimited by the dentin, and having formative, nutritive, sensory, and protective functions. (Jablonski, Dictionary of Dentistry, 1992)	Dental Pulps,Pulp, Dental,Pulps, Dental
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D013234	Stem Cells	Relatively undifferentiated cells that retain the ability to divide and proliferate throughout postnatal life to provide progenitor cells that can differentiate into specialized cells.	Colony-Forming Units,Mother Cells,Progenitor Cells,Colony-Forming Unit,Cell, Mother,Cell, Progenitor,Cell, Stem,Cells, Mother,Cells, Progenitor,Cells, Stem,Colony Forming Unit,Colony Forming Units,Mother Cell,Progenitor Cell,Stem Cell
D055815	Young Adult	A person between 19 and 24 years of age.	Adult, Young,Adults, Young,Young Adults