TY - JOUR
T1 - Establishment of immortal multipotent rat salivary progenitor cell line toward salivary gland regeneration
AU - Yaniv, Adi
AU - Neumann, Yoav
AU - David, Ran
AU - Stiubea-Cohen, Raluca
AU - Orbach, Yoav
AU - Lang, Stephan
AU - Rotter, Nicole
AU - Dvir-Ginzberg, Mona
AU - Aframian, Doron J.
AU - Palmon, Aaron
PY - 2011/1
Y1 - 2011/1
N2 - Adult salivary gland stem cells are promising candidates for cell therapy and tissue regeneration in cases of irreversible damage to salivary glands in head and neck cancer patients undergoing irradiation therapy. At present, the major restriction in handling such cells is their relatively limited life span during in vitro cultivation, resulting in an inadequate experimental platform to explore the salivary gland-originated stem cells as candidates for future clinical application in therapy. We established a spontaneous immortal integrin α6β1-expressing cell line of adult salivary progenitor cells from rats (rat salivary clone [RSC]) and investigated their ability to sustain cellular properties. This line was able to propagate for more than 400 doublings without loss of differentiation potential. RSC could differentiate in vitro to both acinar- and ductal-like structures and could be further manipulated upon culturing on a 3D scaffolds with different media supplements. Moreover, RSC expressed salivary-specific mRNAs and proteins as well as epithelial stem cell markers, and upon differentiation process their expression was changed. These results suggest RSC as a good model for further studies exploring cellular senescence, differentiation, and in vitro tissue engineering features as a crucial step toward reengineering irradiation-impaired salivary glands.
AB - Adult salivary gland stem cells are promising candidates for cell therapy and tissue regeneration in cases of irreversible damage to salivary glands in head and neck cancer patients undergoing irradiation therapy. At present, the major restriction in handling such cells is their relatively limited life span during in vitro cultivation, resulting in an inadequate experimental platform to explore the salivary gland-originated stem cells as candidates for future clinical application in therapy. We established a spontaneous immortal integrin α6β1-expressing cell line of adult salivary progenitor cells from rats (rat salivary clone [RSC]) and investigated their ability to sustain cellular properties. This line was able to propagate for more than 400 doublings without loss of differentiation potential. RSC could differentiate in vitro to both acinar- and ductal-like structures and could be further manipulated upon culturing on a 3D scaffolds with different media supplements. Moreover, RSC expressed salivary-specific mRNAs and proteins as well as epithelial stem cell markers, and upon differentiation process their expression was changed. These results suggest RSC as a good model for further studies exploring cellular senescence, differentiation, and in vitro tissue engineering features as a crucial step toward reengineering irradiation-impaired salivary glands.
UR - http://www.scopus.com/inward/record.url?scp=78650893032&partnerID=8YFLogxK
U2 - 10.1089/ten.tec.2010.0228
DO - 10.1089/ten.tec.2010.0228
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C2 - 20673137
AN - SCOPUS:78650893032
SN - 1937-3384
VL - 17
SP - 69
EP - 78
JO - Tissue Engineering - Part C: Methods
JF - Tissue Engineering - Part C: Methods
IS - 1
ER -
