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Effects of MicroRNA-206 on Osteosarcoma Cell Proliferation, Apoptosis, Migration and Invasion by Targeting ANXA2

Bao-Long Pan1, Zong-Wu Tong2, Ling Wu3

  • 1Department of Laboratory, People's Hospital of Yuxi City, Yuxi, China.

Cellular Physiology and Biochemistry : International Journal of Experimental Cellular Physiology, Biochemistry, and Pharmacology
|February 21, 2018
PubMed
Abstract

Insights

MicroRNA-206 (miR-206) inhibits osteosarcoma (OS) cell growth by targeting ANXA2, suppressing proliferation and invasion while promoting apoptosis via the AKT pathway.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Osteosarcoma (OS) is a primary bone malignancy with complex molecular underpinnings.
  • MicroRNAs (miRNAs) play crucial roles in cancer development and progression.
  • Dysregulation of miR-206 and its targets is implicated in various cancers.

Purpose of the Study:

  • To elucidate the mechanism of microRNA-206 (miR-206) in regulating osteosarcoma (OS) cell behavior.
  • To investigate the role of ANXA2 as a target of miR-206 in OS.
  • To determine the involvement of the AKT signaling pathway in miR-206-mediated OS cell modulation.

Main Methods:

  • Comparative analysis of miR-206 and ANXA2 expression in OS and osteochondroma tissues.
  • Dual-luciferase reporter assay to confirm the targeting relationship between miR-206 and ANXA2.
  • Quantitative real-time PCR and Western blotting to assess gene and protein expression.
  • In vitro functional assays including cell cycle analysis, apoptosis assays, wound-healing, and Transwell invasion assays.

Main Results:

  • Osteosarcoma tissues showed significantly lower miR-206 expression and higher ANXA2, AKT, and related protein expression compared to osteochondroma.
  • ANXA2 was validated as a direct target of miR-206.
  • miR-206 overexpression or ANXA2 knockdown inhibited OS cell proliferation, migration, and invasion, while promoting apoptosis.
  • These effects were mediated through the downregulation of the AKT signaling pathway.

Conclusions:

  • miR-206 functions as a tumor suppressor in osteosarcoma.
  • Overexpression of miR-206 inhibits OS cell proliferation, migration, and invasion by targeting ANXA2.
  • The mechanism involves the inhibition of the AKT signaling pathway, leading to increased apoptosis.
Keywords:
AKT signaling pathwayANXA2InvasionMicroRNA-206OsteosarcomaProliferation

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