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Apoptosis inhibitor-5 overexpression is associated with tumor progression and poor prognosis in patients with cervical cancer.
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ABSTRACT: Background
The apoptosis inhibitor-5 (API5), anti-apoptosis protein, is considered a key molecule in the tumor progression and malignant phenotype of tumor cells. Here, we investigated API5 expression in cervical cancer, its clinical significance, and its relationship with phosphorylated extracellular signal-regulated kinase 1 and 2 (pERK1/2) in development and progression of cervical cancer.Methods
API5 effects on cell growth were assessed in cervical cancer cell lines. API5 and pERK1/2 immunohistochemical staining were performed on a cervical cancer tissue microarray consisting of 173 primary cervical cancers, 306 cervical intraepithelial neoplasias (CINs), and 429 matched normal tissues.Results
API5 overexpression promoted cell proliferation and colony formation in CaSki cells, whereas API5 knockdown inhibited the both properties in HeLa cells. Immunohistochemical staining showed that API5 expression increased during the normal to tumor transition of cervical carcinoma (P?ConclusionsAPI5 expression is associated with pERK1/2 in a subset of cervical cancer patients and its expression predicts poor overall survival, supporting that API5 may be a promising novel target for therapeutic interventions.
SUBMITTER: Cho H
PROVIDER: S-EPMC4125689 | biostudies-literature | 2014 Jul
REPOSITORIES: biostudies-literature
Publications
Apoptosis inhibitor-5 overexpression is associated with tumor progression and poor prognosis in patients with cervical cancer.
BMC cancer 20140728
<h4>Background</h4>The apoptosis inhibitor-5 (API5), anti-apoptosis protein, is considered a key molecule in the tumor progression and malignant phenotype of tumor cells. Here, we investigated API5 expression in cervical cancer, its clinical significance, and its relationship with phosphorylated extracellular signal-regulated kinase 1 and 2 (pERK1/2) in development and progression of cervical cancer.<h4>Methods</h4>API5 effects on cell growth were assessed in cervical cancer cell lines. API5 and ...[more]