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Updated: Jan 25, 2026
Matrix-assisted Autologous Chondrocyte Transplantation for Remodeling and Repair of Chondral Defects in a Rabbit Model
Published on: May 21, 2013
Does Nimodipine, a Selective Calcium Channel Blocker, Impair Chondrocyte Proliferation or Damage Extracellular Matrix
Necati Kaplan1, Ibrahim Yilmaz2, Numan Karaarslan3
1Department of Neurosurgery, Corlu Reyap Hospital, Istanbul Rumeli University, 59680, Tekirdag, Turkey.
Background:
The study aimed to investigate the effects of the active ingredient, nimodipine, on chondrocyte proliferation and extracellular matrix (ECM) structures in cartilage tissue cells.
Methods:
Chondrocyte cultures were prepared from tissues resected via surgical operations. Nimodipine was then applied to these cultures and molecular analysis was performed. The data obtained were statistically calculated.
Results:
Both, the results of the (3-(4,5 dimethylthiazol2-yl)-2,5-diphenyltetrazolium (MTT) assay and the fluorescence microscope analysis [a membrane permeability test carried out with acridine orange/ propidium iodide staining (AO/PI)] confirmed that the active ingredient, nimodipine, negatively affects the cell cultures.
Conclusion:
Nimodipine was reported to suppress cellular proliferation; chondroadherin (CHAD) and hypoxia-inducible factor-1 alpha (HIF-1α) expression thus decreased by 2.4 and 1.7 times, respectively, at 24 hrs when compared to the control group (p < 0.05). Furthermore, type II collagen (COL2A1) expression was not detected (p < 0.05). The risk that a drug prescribed by a clinician in an innocuous manner to treat a patient by relieving the symptoms of a disease may affect the proliferation, differentiation, and viability of other cells and/or tissues at the molecular level, beyond its known side effects or adverse events, should not be forgotten.
Insights
Nimodipine negatively impacts cartilage cells, suppressing proliferation and altering extracellular matrix components. This highlights potential risks of unintended molecular effects on chondrocytes beyond known side effects.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Investigating the effects of nimodipine on chondrocyte proliferation and extracellular matrix (ECM) structures.
- Focus on cartilage tissue cells and their response to nimodipine.
Purpose of the Study:
- To determine the impact of nimodipine on chondrocyte viability and ECM.
- To analyze molecular changes in cartilage cells treated with nimodipine.
Main Methods:
- Chondrocyte cultures prepared from surgically resected tissues.
- Application of nimodipine to cultures followed by molecular analysis.
- Statistical analysis of obtained data.
Main Results:
- Nimodipine negatively affects chondrocyte cultures, confirmed by MTT assay and AO/PI staining.
- Suppressed cellular proliferation observed.
- Decreased expression of chondroadherin (CHAD) and hypoxia-inducible factor-1 alpha (HIF-1α).
Conclusions:
- Nimodipine significantly reduces CHAD and HIF-1α expression.
- Type II collagen (COL2A1) expression was undetectable post-nimodipine treatment.
- Potential for nimodipine to affect chondrocyte proliferation, differentiation, and viability at the molecular level warrants consideration.
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