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Updated: Nov 21, 2025

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

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SP1-induced long non-coding RNA SNHG6 facilitates the carcinogenesis of chondrosarcoma through inhibiting KLF6 by

Fei-Fei Pu1, De-Yao Shi1, Ting Chen1

  • 1Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022, Wuhan, Hubei Province, P.R. China.

Cell Death & Disease
|January 12, 2021
PubMed

Insights

Small nucleolar RNA host gene 6 (SNHG6) drives chondrosarcoma progression by promoting cell proliferation, migration, and invasion. This long non-coding RNA (lncRNA) creates a positive feedback loop with SP1, ultimately suppressing tumor suppressor KLF6.

Area of Science:

  • Oncology
  • Molecular Biology
  • Epigenetics

Background:

  • Small nucleolar RNA host gene 6 (SNHG6) is a long non-coding RNA (lncRNA) with largely unknown roles in chondrosarcoma.
  • Chondrosarcoma is a primary bone malignancy with limited therapeutic options.

Purpose of the Study:

  • To elucidate the regulatory mechanism and oncogenic function of SNHG6 in chondrosarcoma.
  • To investigate the molecular interactions involving SNHG6, EZH2, H3K27me3, KLF6, and SP1 in chondrosarcoma pathogenesis.

Main Methods:

  • Quantitative real-time PCR to assess SNHG6 expression.
  • Cell proliferation, migration, and invasion assays.
  • Chromatin immunoprecipitation (ChIP) assays to determine protein-DNA interactions.
  • Western blotting to analyze protein levels.

Main Results:

  • SNHG6 expression is upregulated in chondrosarcoma and correlates with tumor progression.
  • SNHG6 knockdown inhibits chondrosarcoma cell proliferation, migration, and invasion.
  • SNHG6 recruits EZH2 to repress KLF6 transcription via H3K27 trimethylation.
  • KLF6 suppresses SP1 transcription, while SP1 promotes SNHG6 transcription, forming a positive feedback loop.

Conclusions:

  • SNHG6 acts as an oncogene in chondrosarcoma by promoting cell aggressiveness.
  • The SP1-SNHG6 positive feedback loop, coupled with EZH2-mediated KLF6 suppression, drives chondrosarcoma carcinogenesis.
  • SNHG6 represents a potential therapeutic target for chondrosarcoma treatment.

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