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Author Spotlight: RNA FISH for Locating lncRNA-SNHG6 in Osteosarcoma Cells
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Author Spotlight: RNA FISH for Locating lncRNA-SNHG6 in Osteosarcoma Cells

Published on: June 16, 2023

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Long non-coding RNA CDKN2B-AS1 promotes osteosarcoma by increasing the expression of MAP3K3 via sponging miR-4458

Daokun Gui1, Hanqi Cao2

  • 1Department of Orthopaedics, Lianshui County People's Hospital, No. 6, Hongri Avenue, Lianshui County, Jiangsu Province, 223400, China.

In Vitro Cellular & Developmental Biology. Animal
|January 18, 2020
PubMed

Insights

The long non-coding RNA CDKN2B-AS1 promotes osteosarcoma (OS) progression by interacting with miR-4458 and increasing MAP3K3 expression. This finding offers new avenues for OS diagnosis and therapy.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Osteosarcoma (OS) is a prevalent primary bone malignancy.
  • Long non-coding RNA CDKN2B-AS1 is implicated in various cancers, but its role in OS is unclear.

Purpose of the Study:

  • To investigate the function and mechanism of CDKN2B-AS1 in osteosarcoma development.
  • To elucidate the regulatory pathway involving CDKN2B-AS1, miR-4458, and MAP3K3 in OS.

Main Methods:

  • Assessed CDKN2B-AS1 expression in OS tissues and cells.
  • Performed knockdown experiments to evaluate the effects of CDKN2B-AS1 on OS cell behavior.
  • Investigated the interaction between CDKN2B-AS1, miR-4458, and MAP3K3 using molecular assays.
  • Conducted in vivo experiments to validate findings.

Main Results:

  • CDKN2B-AS1 expression was significantly upregulated in OS tissues and cells.
  • Knockdown of CDKN2B-AS1 inhibited OS cell proliferation, migration, and epithelial-mesenchymal transition (EMT).
  • CDKN2B-AS1 acted as a sponge for miR-4458, and MAP3K3 was identified as a downstream target of miR-4458.
  • MAP3K3 overexpression partially reversed the inhibitory effects of CDKN2B-AS1 knockdown.
  • In vivo studies confirmed that CDKN2B-AS1 accelerates tumor growth in OS.

Conclusions:

  • CDKN2B-AS1 promotes osteosarcoma progression by sponging miR-4458, leading to increased MAP3K3 expression.
  • The CDKN2B-AS1/miR-4458/MAP3K3 axis represents a potential therapeutic target for osteosarcoma.
  • This study provides novel insights for improving diagnostic and therapeutic strategies for OS patients.
Keywords:
CDKN2B-AS1MAP3K3OsteosarcomamiR-4458

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