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Updated: May 10, 2026
08:26
A Quantitative Cell Migration Assay for Murine Enteric Neural Progenitors
Published on: September 18, 2013
CCN4 regulates vascular smooth muscle cell migration and proliferation
Hao Liu1, Wenpeng Dong, Zhiqi Lin
1Department of Vascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China.
Molecules and Cells
|June 29, 2013
Summary
CCN4 promotes vascular smooth muscle cell (VSMC) migration and proliferation, key factors in atherosclerosis and restenosis. Inhibiting CCN4 may offer a new strategy to prevent restenosis after vascular procedures.
Area of Science:
- Cardiovascular Biology
- Cell Biology
- Molecular Medicine
Background:
- Vascular smooth muscle cell (VSMC) migration and proliferation are critical in atherosclerosis and restenosis.
- Extracellular matrix (ECM) proteins, including the CCN family, influence VSMC behavior.
- CCN4, a member of the CCN protein family, regulates cell development and survival.
Purpose of the Study:
- To investigate the role of CCN4 in VSMC migration and proliferation.
- To determine if CCN4 influences VSMC phenotype marker expression.
Main Methods:
- Experiments were conducted using cultured rat VSMCs.
- CCN4's effects on adhesion, migration, and proliferation were assessed.
- Integrin α5β1 involvement was tested using blocking antibodies.
- Tumor necrosis factor α (TNF-α) was used to modulate CCN4 expression.
- Small interfering RNA (siRNA) was used to knock down CCN4.
Main Results:
- CCN4 dose-dependently stimulated VSMC adhesion and migration, an effect blocked by anti-integrin α5β1 antibody.
- Pro-inflammatory TNF-α enhanced CCN4 expression.
- CCN4 knockdown significantly inhibited VSMC proliferation.
- CCN4 up-regulated VSMC phenotype marker proteins.
Conclusions:
- CCN4 plays a significant role in regulating VSMC migration and proliferation.
- CCN4 modulation affects VSMC phenotype.
- Targeting CCN4 presents a potential therapeutic strategy for preventing vascular restenosis.
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