Long non-coding RNA THOR promotes human osteosarcoma cell growth in vitro and in vivo.
Biochem Biophys Res Commun
; 499(4): 913-919, 2018 05 23.
Article
em En
| MEDLINE
| ID: mdl-29626476
ABSTRACT
Long non-coding RNA (LncRNA) dysregulation is associated with human osteosarcoma (OS) cell progression. Recent studies have characterized a novel but ultra-conserved LncRNA THOR ("Lnc-THOR") as a cancer-specific LncRNA, mediating cell growth. In the current study, we show that Lnc-THOR is expressed in established and primary human OS cells. It is also detected in human OS tissues, but not in the surrounding normal bone tissues. siRNA-induced knockdown or CRSIPR/Cas9-mediated knockout Lnc-THOR significantly inhibited human OS cell survival and proliferation. Insulin-like growth factor 2 mRNA-binding protein 1 (IGF2BP1) target mRNAs, including IGF2, GLI1 and CD44, were downregulated in Lnc-THOR-silenced OS cells as well. Conversely, forced over-expression of Lnc-THOR enhanced IGF2BP1 target mRNA expression, promoting OS cell survival and proliferation. In vivo, xenograft tumors of Lnc-THOR-knockout U2OS cells grew significantly slower than the control U2OS tumors. Together, these results show that Lnc-THOR expression is essential for human OS cell growth. Lnc-THOR could be a novel therapeutic target and/or diagnosis marker for human OS.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Osteossarcoma
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RNA Longo não Codificante
Limite:
Animals
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Humans
Idioma:
En
Revista:
Biochem Biophys Res Commun
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
China