MicroRNA-200a promotes proliferation and invasion of ovarian cancer cells by targeting PTEN.
Eur Rev Med Pharmacol Sci
; 22(19): 6260-6267, 2018 10.
Article
en En
| MEDLINE
| ID: mdl-30338796
ABSTRACT
OBJECTIVE:
We investigate whether microRNA-200a could regulate proliferation and invasion of ovarian cancer cells, thereby participating in the occurrence and development of ovarian cancer. We also explore the specific mechanism of microRNA-200a in regulating ovarian cancer. PATIENTS ANDMETHODS:
Expression level of microRNA-200a in ovarian cancer tissues and paracancerous tissues were detected by quantitative Real-time polymerase chain reaction (qRT-PCR). The regulatory effects of microRNA-200a on proliferation and invasion of ovarian cancer cells were examined by Cell counting kit-8 (CCK-8) and cell invasion assay, respectively. Dual-luciferase reporter gene assay was performed to confirm the binding relationship between microRNA-200a and PTEN (phosphatase and tensin homolog deleted on chromosome ten). The regulatory role of microRNA-200a in PTEN expression was accessed by Western blot. Rescue experiments were conducted to assess whether microRNA-200a regulated proliferation and invasion of ovarian cancer cells by inhibiting PTEN expression.RESULTS:
MicroRNA-200a expression in ovarian cancer tissues was significantly higher than that of paracancerous tissues. Besides, microRNA-200a was also overexpressed in ovarian cancer cell lines than that of normal ovarian cells. Overexpression of microRNA-200a promoted the proliferative and invasive abilities of SKOV3 and OVCAR3 cells. Dual-luciferase reporter gene assay showed that microRNA-200a could directly degrade PTEN. Overexpression of PTEN in SKOV3 and OVCAR3 cells partially reversed the increased cell proliferation and invasion induced by overexpressed microRNA-200a.CONCLUSIONS:
Overexpressed microRNA-200a promoted the proliferative and invasive abilities of ovarian cancer cells, which might be related to the targeted regulation of PTEN expression.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias Ováricas
/
Regulación hacia Arriba
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MicroARNs
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Fosfohidrolasa PTEN
Límite:
Female
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Humans
Idioma:
En
Revista:
Eur Rev Med Pharmacol Sci
Asunto de la revista:
FARMACOLOGIA
/
TOXICOLOGIA
Año:
2018
Tipo del documento:
Article
País de afiliación:
China