Related Experiment Video

Updated: Aug 27, 2025

LINE-1 Methylation Analysis in Mesenchymal Stem Cells Treated with Osteosarcoma-Derived Extracellular Vesicles
12:18

LINE-1 Methylation Analysis in Mesenchymal Stem Cells Treated with Osteosarcoma-Derived Extracellular Vesicles

Published on: February 1, 2020

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TIPE1 inhibits osteosarcoma tumorigenesis and progression by regulating PRMT1 mediated STAT3 arginine methylation

Minghao Yang1, Yuzhu Zhang2, Guangping Liu2

  • 1Department of Radiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, PR China.

Cell Death & Disease
|September 23, 2022
PubMed

Insights

TIPE1 suppresses osteosarcoma (bone cancer) development and metastasis. This protein inhibits the PRMT1-STAT3 pathway, offering a potential therapeutic target and early diagnostic biomarker for osteosarcoma.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Osteosarcoma (OS) is a primary bone cancer with high mortality and metastasis rates.
  • Effective therapeutic targets and early diagnostic biomarkers for OS are urgently needed.

Purpose of the Study:

  • To investigate the role of TIPE1 in osteosarcoma progression.
  • To elucidate the molecular mechanism underlying TIPE1's function in OS.

Main Methods:

  • Analysis of TIPE1 expression in osteosarcoma tissues.
  • In vivo and in vitro functional assays to assess TIPE1's impact on OS carcinogenesis and metastasis.
  • Investigation of the STAT3 signaling pathway and PRMT1-mediated methylation.

Main Results:

  • TIPE1 expression is decreased in OS tissues and correlates negatively with tumor stage and size.
  • TIPE1 overexpression inhibits osteosarcoma cell growth and metastasis.
  • TIPE1 suppresses osteosarcoma malignancy by inhibiting PRMT1-mediated STAT3 methylation at arginine 688, reducing STAT3 transactivation and expression.

Conclusions:

  • TIPE1 acts as a tumor suppressor in osteosarcoma.
  • The TIPE1/PRMT1/STAT3 pathway is crucial in regulating OS malignancy.
  • TIPE1 represents a potential therapeutic target and early diagnostic biomarker for osteosarcoma.

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