Pegylated liposomalpaclitaxel induces ovarian cancer cell apoptosis via TNFinduced ERK/AKT signaling pathway.
Mol Med Rep
; 17(6): 7497-7504, 2018 Jun.
Article
em En
| MEDLINE
| ID: mdl-29620264
ABSTRACT
Ovarian cancer is one of the most common gynecological types of cancer and is characterized by a relatively high incidence and high mortality rate. Evidence has demonstrated that paclitaxel (PTX) is an effective therapeutic treatment for human ovarian cancer. In the present study, the inhibitory effects of pegylated liposomal (PL)PTX on the growth of ovarian cancer cells were investigated in vitro; a CAOV3bearing mouse model was established to investigate the in vivo effects of PLPTX on ovarian tumor growth. In the present study, the underlying mechanism of tumor necrosis factor (TNF)induced inhibition of extracellular signalregulated kinase (ERK)/protein kinase B (AKT) signaling pathway mediated by PLPTX was analyzed within ovarian cancer cells. The results of the present study revealed that PLPTX significantly inhibited the growth and aggressiveness of ovarian cancer cells in vitro and in vivo and apoptotic ability increased upon administration of PLPTX. The expression levels of caspase3/9 were significantly upregulated within PLPTXtreated ovarian cancer cells. The expression and phosphorylation levels of ERK and AKT were markedly increased in response to PLPTX treatment. In addition, the inhibitory effects of PLPTX on ovarian cancer cells were eliminated by neutralizing antibodies against TNF. The observations of the present study revealed that PLPTX induced ovarian cell apoptosis via the TNFdependent pathway, which was significantly inhibited with the employment of antibodies against TNF. In vivo analysis demonstrated that PLPTX treatment significantly inhibited ovarian tumor growth and prolonged the survival of tumor bearing mice. In conclusion, the findings of the present study have provided an insight into the potential mechanism of PLPTXinduced apoptosis of ovarian cancer cells. As PLPTX has been reported to induce ovarian tumor cell apoptosis via the TNFinduced ERK/AKT signaling pathway, PLPTX may serve as an efficient anticancer drug for the treatment of ovarian cancer.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polietilenoglicóis
/
Transdução de Sinais
/
Paclitaxel
/
Apoptose
/
MAP Quinases Reguladas por Sinal Extracelular
/
Proteínas Proto-Oncogênicas c-akt
/
Lipossomos
/
Antineoplásicos Fitogênicos
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Mol Med Rep
Ano de publicação:
2018
Tipo de documento:
Article