LEIGC long non-coding RNA acts as a tumor suppressor in gastric carcinoma by inhibiting the epithelial-to-mesenchymal transition.
BMC Cancer
; 14: 932, 2014 Dec 11.
Article
em En
| MEDLINE
| ID: mdl-25496320
ABSTRACT
BACKGROUND:
Long non-coding RNAs have been shown to have critical regulatory roles in cancer biology. However, the contributions of lncRNAs to gastric cancer remain largely unknown.METHODS:
The differential expression of lncRNAs in gastric cancer and paired non-cancerous tissues were identified by microarray and validated using quantitative real-time PCR. Gastric samples from patients with gastric cancer were further analyzed for levels of a specifically downregulated lncRNA (termed as LEIGC).RESULTS:
We found that there were significantly lower levels of LEIGC expression in cancer tissue than in adjacent non-cancerous tissues in human gastric cancers (P < 0.01). Overexpression of LEIGC suppressed tumor growth and cell proliferation, and enhanced the sensitivity of gastric cancer cells to 5-fluorouracil (5-FU), whereas knockdown of LEIGC showed the opposite effect. We further demonstrated LEIGC functions by inhibiting the epithelial-to-mesenchymal transition (EMT) in gastric cancer.CONCLUSIONS:
Our data suggested that LEIGC is a tumor-suppressing lncRNA in gastric cancer, and led us to propose that lncRNAs may play important regulatory roles in cancer development and progression.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Gástricas
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Genes Supressores de Tumor
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Transição Epitelial-Mesenquimal
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RNA Longo não Codificante
Tipo de estudo:
Prognostic_studies
Limite:
Adult
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Aged
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Aged80
/
Animals
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article