2016
Cancer stem cell markers in pediatric sarcomas: Sox2 is associated with tumorigenicity in immunodeficient mice
ŠKODA, Jan, Alena ŇUŇUKOVÁ, Tomáš LOJA, Iva ZAMBO, Jakub NERADIL et. al.Základní údaje
Originální název
Cancer stem cell markers in pediatric sarcomas: Sox2 is associated with tumorigenicity in immunodeficient mice
Autoři
ŠKODA, Jan (203 Česká republika, domácí), Alena ŇUŇUKOVÁ (703 Slovensko, domácí), Tomáš LOJA (703 Slovensko, domácí), Iva ZAMBO (203 Česká republika, domácí), Jakub NERADIL (203 Česká republika, domácí), Peter MÚDRY (203 Česká republika, domácí), Karel ZITTERBART (203 Česká republika, domácí), Markéta HERMANOVÁ (203 Česká republika, domácí), Aleš HAMPL (203 Česká republika, domácí), Jaroslav ŠTĚRBA (203 Česká republika, domácí) a Renata VESELSKÁ (203 Česká republika, garant, domácí)
Vydání
Tumor Biology, Dordrecht, Springer Netherlands, 2016, 1010-4283
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30209 Paediatrics
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 3.650
Kód RIV
RIV/00216224:14310/16:00088885
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000382174500105
Klíčová slova anglicky
cancer stem cells;pediatric sarcomas;markers;tumorigenicity;Sox2
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 11. 2016 14:26, Ing. Mgr. Věra Pospíšilíková
Anotace
V originále
The three most frequent pediatric sarcomas, i.e., Ewing's sarcoma, osteosarcoma, and rhabdomyosarcoma, were examined in this study: three cell lines derived from three primary tumor samples were analyzed from each of these tumor types. Detailed comparative analysis of the expression of three putative cancer stem cell markers related to sarcomas-ABCG2, CD133, and nestin-was performed on both primary tumor tissues and corresponding cell lines. The obtained results showed that the frequency of ABCG2-positive and CD133-positive cells was predominantly increased in the respective cell lines but that the high levels of nestin expression were reduced in both osteosarcomas and rhabdomyosarcomas under in vitro conditions. These findings suggest the selection advantage of cells expressing ABCG2 or CD133, but the functional tests in NOD/SCID gamma mice did not confirm the tumorigenic potential of cells harboring this phenotype. Subsequent analysis of the expression of common stem cell markers revealed an evident relationship between the expression of the transcription factor Sox2 and the tumorigenicity of the cell lines in immunodeficient mice: the Sox2 levels were highest in the two cell lines that were demonstrated as tumorigenic. Furthermore, Sox2-positive cells were found in the respective primary tumors and all xenograft tumors showed apparent accumulation of these cells. All of these findings support our conclusion that regardless of the expression of ABCG2, CD133 and nestin, only cells displaying increased Sox2 expression are directly involved in tumor initiation and growth; therefore, these cells fit the definition of the cancer stem cell phenotype.
Návaznosti
EE2.3.20.0183, projekt VaV |
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NT13443, projekt VaV |
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