[HTML][HTML] Isolation of human nasoseptal chondrogenic cells: a promise for cartilage engineering
RJFC do Amaral, C da SG Pedrosa, MCL Kochem… - Stem Cell Research, 2012 - Elsevier
Stem Cell Research, 2012•Elsevier
In cartilaginous tissues, perichondrium cambium layer may be the source of new cartilage.
Human nasal septal perichondrium is considered to be a homogeneous structure in which
some authors do not recognize the perichondrium internal zone or the cambium layer as a
layer distinct from adjacent cartilage surface. In the present study, we isolated a
chondrogenic cell population from human nasal septal cartilage surface zone. Nasoseptal
chondrogenic cells were positive for surface markers described for mesenchymal stem cells …
Human nasal septal perichondrium is considered to be a homogeneous structure in which
some authors do not recognize the perichondrium internal zone or the cambium layer as a
layer distinct from adjacent cartilage surface. In the present study, we isolated a
chondrogenic cell population from human nasal septal cartilage surface zone. Nasoseptal
chondrogenic cells were positive for surface markers described for mesenchymal stem cells …
In cartilaginous tissues, perichondrium cambium layer may be the source of new cartilage. Human nasal septal perichondrium is considered to be a homogeneous structure in which some authors do not recognize the perichondrium internal zone or the cambium layer as a layer distinct from adjacent cartilage surface. In the present study, we isolated a chondrogenic cell population from human nasal septal cartilage surface zone. Nasoseptal chondrogenic cells were positive for surface markers described for mesenchymal stem cells, with exception of CD146, a perivascular cell marker, which is consistent with their avascular niche in cartilage. Although only Sox-9 was constitutively expressed, they also revealed osteogenic and chondrogenic, but not adipogenic, potentials in vitro, suggesting a more restricted lineage potential compared to mesenchymal stem cells. Interestingly, even in absence of chondrogenic growth factors in the pellet culture system, nasoseptal chondrogenic cells had a capacity to synthesize sulfated glycosaminoglycans, large amounts of collagen type II and to a lesser extent collagen type I. The spontaneous chondrogenic potential of this population of cells indicates that they may be a possible source for cartilage tissue engineering. Besides, the pellet culture system using nasoseptal chondrogenic cells may also be a model for studies of chondrogenesis.
Elsevier
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