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Related Experiment Video

Updated: May 29, 2026

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma

Published on: April 12, 2019

Vasodilator-stimulated phosphoprotein regulates osteosarcoma cell migration.

Gang Wu¹, Lei Wei, Aixi Yu

¹Department of Orthopedics, Zhongnan Hospital of Wuhan University, and Department of Pathology and Pathophysiology, Medical School of Wuhan University, Wuhan, Hubei 430071, PR China.

Oncology Reports

|August 30, 2011

Summary

Vasodilator-stimulated phosphoprotein (VASP) promotes osteosarcoma cell migration and metastasis. Targeting the VASP and Rac1 interaction could be a potential therapeutic strategy for osteosarcoma treatment.

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Published on: May 6, 2018

Area of Science:

Oncology
Molecular Biology
Cell Biology

Background:

Vasodilator-stimulated phosphoprotein (VASP) is implicated in cell migration and tumor metastasis.
VASP's role in osteosarcoma, a primary bone cancer, remains unexplored.

Purpose of the Study:

To investigate the function of VASP in osteosarcoma cell migration and metastasis.
To elucidate the signal transduction pathways involving VASP in osteosarcoma.

Main Methods:

Utilized two osteosarcoma cell lines (Mg-63 and Saos-2) with varying metastatic potentials.
Employed RNA interference (siRNA) to silence VASP expression.
Assessed VASP expression via RT-PCR and Western blot.
Evaluated cell migration using wound healing assays.
Analyzed VASP expression in 30 human osteosarcoma samples.
Investigated the role of Rac1 in VASP regulation.

Main Results:

Mg-63 cells exhibited significantly higher VASP expression (mRNA and protein) and migratory potential than Saos-2 cells.
VASP knockdown in Mg-63 cells reduced their migratory capacity.
Osteosarcoma samples from patients with metastases showed elevated VASP expression.
Rac1 knockdown inhibited VASP expression in osteosarcoma cells.

Conclusions:

VASP protein positively regulates osteosarcoma cell migration and metastasis.
The interaction between Rac1 and VASP represents a potential therapeutic target for osteosarcoma.