Isolation and culture of tumor stem cells from human brain glioma tissues / 中华肿瘤杂志
Chinese Journal of Oncology
; (12): 331-333, 2006.
Artigo
em Chinês
| WPRIM (Pacífico Ocidental)
| ID: wpr-236973
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To isolate and culture tumor stem cells from glioma tissues obtained at surgical operation and to study their biological characteristics.</p><p><b>METHODS</b>Glioma tissues obtained from surgically resected specimens of 8 patients were fully chopped, trypsinized, and filtered to prepare single cell suspensions. The cells were cultured in serum-free medium with EGF, LIF and bFGF. CD133(+) cells were purified by magnetic cell sorting, and cultured continuously in vitro to obtain tumor cell spheres. Tumor stem cells of the 5th passage were induced to differentiate with 10% FBS, and expression of cell differentiation markers such as Nestin, MAP2, GFAP was evaluated with immunocytochemistry techniques.</p><p><b>RESULTS</b>CD133(+) cells were successfully separated and cultured from one anasplastic mixed astrocyte-ependymocyte type glioma specimen. These cells maintained a sphere-like growth status in vitro (3 months, 14 passages), and can self-renew, proliferate and conditionally differentiate into MAP2(+) and GFAP(+) cells. However, CD133(-) cells did not possess these properties.</p><p><b>CONCLUSION</b>Glioma tissue contains tumor stem cells. Those cells can be cultured and passaged in vitro for a long term, and therefore to offer new approaches for studying cellular and molecular biology of glioma.</p>
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Peptídeos
/
Células-Tronco Neoplásicas
/
Neoplasias Encefálicas
/
Glicoproteínas
/
Antígenos CD
/
Diferenciação Celular
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Separação Celular
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Células Cultivadas
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Biologia Celular
Limite:
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Oncology
Ano de publicação:
2006
Tipo de documento:
Artigo