Sonic hedgehog signaling enhanced the expression of histone demethylase, lysine-specific demethylase 8 in the head and neck squamous cell carcinoma cell line SCC-6 / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 77-80, 2013.
Article
Dans Chinois
| WPRIM
| ID: wpr-260172
ABSTRACT
<p><b>OBJECTIVE</b>To determine whether the sonic hedgehog (Shh) signaling could regulate the expression of histone demethylases in the head and neck squamous cell carcinoma(SCC).</p><p><b>METHODS</b>Human recombinant SHH-N protein or over-expression of the mutant 2 smoothened (M2-SMO) was applied to activate the Shh signaling in tongue squamous cell carcinoma cell line-SCC-6 in this study. Cyclopamine was used to block the Shh signaling in SCC-6. The real-time reverse transcription (RT)-PCR was used to detect the expression of histone demethylases at the mRNA level.</p><p><b>RESULTS</b>The data showed that activation of the Shh signaling up-regulated the expression of histone demethylase, lysine-specific demethylase 8 (KDM-8) at the mRNA level by human recombinant SHH-N protein (1.841 ∼ 3.591 fold compare with untreated group; P < 0.01), over-expression of the M2-SMO also increased the expression of KDM-8 (1.358 ∼ 3.013 fold compared with empty vector group; P < 0.05), and after the Shh signaling was blocked by Cyclopamine, the expression of KDM-8 was down regulated (decreased 25.6% ∼ 66.6% compared with control cells, P < 0.05).</p><p><b>CONCLUSIONS</b>Histone demethylase KDM-8 was downstream target gene of Shh signaling in head and neck squamous cell carcinoma cell line SCC-6, and its expression was positively regulated by the Shh signaling.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Pharmacologie
/
Alcaloïdes de Veratrum
/
Protéines recombinantes
/
ARN messager
/
Carcinome épidermoïde
/
Transduction du signal
/
Régulation de l'expression des gènes tumoraux
/
Lignée cellulaire tumorale
/
Récepteurs couplés aux protéines G
/
Protéines mutantes
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Chinese Journal of Stomatology
Année:
2013
Type:
Article
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