Inhibition of lncRNA KCNQ1OT1 Improves Apoptosis and Chemotherapy Drug Response in Small Cell Lung Cancer by TGF-ß1 Mediated Epithelial-to-Mesenchymal Transition.
Cancer Res Treat
; 53(4): 1042-1056, 2021 Oct.
Article
em En
| MEDLINE
| ID: mdl-33705625
ABSTRACT
PURPOSE:
Drug resistance is one of the main causes of chemotherapy failure in patients with small cell lung cancer (SCLC), and extensive biological studies into chemotherapy drug resistance are required. MATERIALS ANDMETHODS:
In this study, we performed lncRNA microarray, in vitro functional assays, in vivo models and cDNA microarray to evaluate the impact of lncRNA in SCLC chemoresistance.RESULTS:
The results showed that KCNQ1OT1 expression was upregulated in SCLC tissues and was a poor prognostic factor for patients with SCLC. Knockdown of KCNQ1OT1 inhibited cell proliferation, migration, chemoresistance and promoted apoptosis of SCLC cells. Mechanistic investigation showed that KCNQ1OT1 can activate transforming growth factor-ß1 mediated epithelial-to-mesenchymal transition in SCLC cells.CONCLUSION:
Taken together, our study revealed the role of KCNQ1OT1 in the progression and chemoresistance of SCLC, and suggested KCNQ1OT1 as a potential diagnostic and prognostic biomarker in SCLC clinical management.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Protocolos de Quimioterapia Combinada Antineoplásica
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Regulação Neoplásica da Expressão Gênica
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Resistencia a Medicamentos Antineoplásicos
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Fator de Crescimento Transformador beta1
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Carcinoma de Pequenas Células do Pulmão
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Transição Epitelial-Mesenquimal
Tipo de estudo:
Observational_studies
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Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Cancer Res Treat
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China