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Updated: Mar 29, 2026

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
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Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma

Published on: April 12, 2019

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TIPE2 Mediates the Suppressive Effects of Shikonin on MMP13 in Osteosarcoma Cells

Biyong Deng, Youwei Feng, Bixiang Deng

    Cellular Physiology and Biochemistry : International Journal of Experimental Cellular Physiology, Biochemistry, and Pharmacology
    |December 10, 2015
    PubMed
    Abstract

    Insights

    Shikonin, a herb extract, inhibits osteosarcoma invasion by increasing TIPE2 levels, which suppresses MMP13. Lower TIPE2 in patients correlates with worse outcomes, suggesting TIPE2 as a therapeutic target.

    Area of Science:

    • Oncology
    • Molecular Biology
    • Pharmacology

    Background:

    • Osteosarcoma (OS) is a primary bone cancer known for metastasis.
    • Shikonin inhibits OS cell invasion by suppressing matrix metalloproteinase 13 (MMP13).
    • The precise mechanisms behind Shikonin's action on OS invasion are not fully understood.

    Purpose of the Study:

    • To investigate the role of tumor necrosis factor (TNF)-alpha-induced protein 8-like 2 (TIPE2) in Shikonin's anti-invasive effects on osteosarcoma.
    • To explore TIPE2 as a potential therapeutic target for osteosarcoma.

    Main Methods:

    • Studied TIPE2 levels in OS cells treated with Shikonin.
    • Manipulated TIPE2 expression in OS cell lines using gene transfection and shRNA.
    • Assessed MMP13 levels and cell invasiveness via RT-qPCR, Western blot, ELISA, and transwell assays.
    • Correlated TIPE2 levels in patient specimens with clinical outcomes.

    Main Results:

    • Shikonin decreased MMP13 and increased TIPE2 in OS cells.
    • TIPE2 overexpression suppressed MMP13 and invasiveness; TIPE2 depletion enhanced them.
    • OS tissues showed lower TIPE2 levels than normal bone.
    • Reduced TIPE2 correlated with increased metastasis and poorer survival.

    Conclusions:

    • TIPE2 mediates Shikonin's suppression of MMP13 in osteosarcoma.
    • TIPE2 plays a crucial role in regulating osteosarcoma cell invasion.
    • TIPE2 represents a potential novel therapeutic target for osteosarcoma treatment.

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