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MicroRNA-432 Suppresses Invasion and Migration via E2F3 in Nasopharyngeal Carcinoma

Tingting Wang1, Mingyu Du1, Wenjun Zhang1

  • 1The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, People's Republic of China.

Oncotargets and Therapy
|January 8, 2020
PubMed
Abstract

Insights

MicroRNA-432 (miR-432) suppresses nasopharyngeal carcinoma (NPC) progression by targeting E2F transcription factor 3 (E2F3). This finding offers new avenues for NPC treatment and prognosis.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • E2F transcription factor 3 (E2F3) is oncogenic and dysregulated in various cancers.
  • MicroRNA (miRNA) and E2F3 networks are critical in tumorigenesis.
  • The roles of E2F3 and its target miRNAs in nasopharyngeal carcinoma (NPC) are understudied.

Purpose of the Study:

  • To investigate the role of E2F3 and its target miRNAs in NPC.
  • To elucidate the regulatory mechanism of E2F3 and miR-432 in NPC progression.

Main Methods:

  • Quantitative real-time PCR to detect E2F3 expression in NPC tissues and cell lines.
  • In vitro assays (cell counting kit-8, wound healing, Transwell invasion) to evaluate NPC cell behavior.
  • Dual-luciferase reporter assay and in vivo tumor xenograft models to confirm the E2F3-miR-432 interaction and function.

Main Results:

  • E2F3 was upregulated in NPC, promoting cell invasion and migration.
  • E2F3 was identified as a direct target of miR-432.
  • miR-432 suppressed NPC cell invasion and migration by modulating E2F3 expression both in vitro and in vivo.

Conclusions:

  • MicroRNA-432 (miR-432) inhibits the malignant biological behavior of NPC cells by targeting E2F3.
  • This study provides novel insights into NPC pathogenesis and potential therapeutic strategies.
Keywords:
E2F3invasionmiR-432migrationnasopharyngeal carcinoma

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