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A Novel lncRNA HOXC-AS3 Acts as a miR-3922-5p Sponge to Promote Breast Cancer Metastasis.
Cancer Invest ; 38(1): 1-12, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31797701
ABSTRACT

PURPOSE:

The function of long noncoding RNAs (lncRNA) in breast cancer metastasis remains largely unknown. In this work, the role of HOXC-AS3 in breast cancer progression was investigated.

METHODS:

By using Cancer Genome Atlas (TCGA) Database, we investigated the expression of HOXC-AS3 in breast cancer and explored the association between HOXC-AS3 expression and prognosis. Then, we studied the biological function of HOXC-AS3 in cell migration and invasion both in vitro and in vivo. Furthermore, the target miRNA of HOXC-AS3, and the target mRNA of miR-3922-5p were proved.

RESULTS:

HOXC-AS3 is aberrantly overexpressed in breast cancers especially the HER2+ type. Moreover, high expression of HOXC-AS3 has a relationship with poor clinical outcomes of breast cancer. In addition, HOXC-AS3 regulates cell Invasion and migration both in vitro and in vivo. Our results demonstrated that miR-3922-5p was a direct target of HOXC-AS3, and PPP1R1A was a target of miR-3922-5p in breast cancer.

CONCLUSIONS:

The novel lncRNA HOXC-AS3 acts as a miR-3922-5p sponge to upregulate PPP1R1A protein expression, and thus results in promoting breast cancer metastasis. HOXC-AS3 could be a novel therapeutic target for breast cancer therapeutics.

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Aspecto clínico: Prognóstico Idioma: Inglês Revista: Cancer Invest Ano de publicação: 2020 Tipo de documento: Artigo