LncRNA-DQ786227-mediated cell malignant transformation induced by benzo(a)pyrene.
Toxicol Lett
; 223(2): 205-10, 2013 Nov 25.
Article
em En
| MEDLINE
| ID: mdl-24084393
ABSTRACT
It has recently been found that the new class of transcripts, long non-coding RNAs (lncRNAs), are pervasively transcribed in the genome. LncRNAs are a large family of non-coding RNAs and regulate many protein-coding genes. Growing evidence indicates that lncRNAs may play an important functional role in cancer biology. Emerging data have shown that lncRNAs are closely related to the occurrence and development of lung cancer. However, the function and mechanism of lncRNAs in lung cancer remain elusive. Here, we investigated the role of a novel lncRNA in transformed human bronchial epithelial cells induced by benzo(a)pyrene. After establishing the transformed cell model using the BEAS-2B cell line in vitro, we found that expression of lncRNA-DQ786227 was high and changed during the transformation of BEAS-2B cells. Silencing of lncRNA-DQ786227 expression in malignant transformed BEAS-2B cells led to inhibition of cell proliferation and colony formation, and increased apoptosis. LncRNA-DQ786227 dramatically promoted the ability of BEAS-2B-T cells to form colonies in vitro and develop tumors in nude mice. These findings revealed that lncRNA-DQ786227 acts as an oncogene in malignantly transformed BEAS-2B cells induced by benzo(a)pyrene. The identification of lncRNA could provide new insight into the molecular mechanisms of chemical carcinogenesis.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Benzo(a)pireno
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Transformação Celular Neoplásica
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RNA Longo não Codificante
Tipo de estudo:
Prognostic_studies
Limite:
Animals
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Humans
Idioma:
En
Revista:
Toxicol Lett
Ano de publicação:
2013
Tipo de documento:
Article