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KLF16 suppresses human glioma cell proliferation and tumourigenicity by targeting TFAM

Xiangrong Chen1, Shun Li2, Yumin Ke3

  • 1a Department of Neurosurgery , The Second Affiliated Hospital, Fujian Medical University , Quanzhou , PR China.

Artificial Cells, Nanomedicine, and Biotechnology
|January 30, 2018
PubMed
Abstract

Insights

Krüppel-like factor 16 (KLF16) suppresses glioma cell proliferation by targeting Mitochondrial transcription factor A (TFAM). Reduced KLF16 levels correlate with increased tumor growth, highlighting KLF16 as a potential therapeutic target.

Area of Science:

  • Molecular Biology
  • Oncology
  • Gene Regulation

Background:

  • Glioma is a complex brain tumor with poorly understood regulatory mechanisms.
  • Identifying novel regulators of glioma cell proliferation is crucial for developing effective treatments.

Purpose of the Study:

  • To investigate the role of Krüppel-like factor 16 (KLF16) in regulating gene expression within glioma.
  • To elucidate the specific mechanisms by which KLF16 influences glioma cell proliferation.

Main Methods:

  • Utilized lentiviral transfection of KLF16 or KLF16-siRNA in U87MG cells.
  • Assessed cell proliferation, viability, apoptosis, and cell cycle using colony formation, MTT, TUNEL, and flow cytometry assays.
  • Confirmed the direct regulatory relationship between KLF16 and Mitochondrial transcription factor A (TFAM) via luciferase and chromatin immunoprecipitation assays.

Main Results:

  • KLF16 expression was significantly decreased in glioma cells and tissues.
  • KLF16 overexpression suppressed glioma cell proliferation both in vitro and in vivo.
  • KLF16 directly targeted the TFAM gene promoter, inhibiting TFAM expression and downstream proliferation pathways.

Conclusions:

  • KLF16 acts as a tumor suppressor in glioma by directly inhibiting TFAM.
  • KLF16 represents a promising therapeutic target for glioma treatment.
Keywords:
KLF16TFAMcell cycleglioma cellproliferation

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