J Korean Ophthalmol Soc.  2009 Sep;50(9):1404-1408. 10.3341/jkos.2009.50.9.1404.

Effect of Bevacizumab on Survival and Production of Nitric Oxide in Trabecular Meshwork Cells

  • 1Department of Ophthalmology, Catholic University of Daegu College of Medicine, Daegu, Korea. jwkim@cu.ac.kr


To investigate the effect of bevacizumab, a monoclonal antibody against vascular endothelial growth factor (VEGF), on the survival and production of nitric oxide (NO) in human trabecular meshwork cells (HTMC). METHODS: Primarily cultured HTMC were exposed to 0, 0.25, 1.0, and 2.5 mg/ml bevacizumab for 24 hours. Cellular survival and production of NO were assessed by MTT assay and Griess assay, respectively. RESULTS: Bevacizumab did not affect the cellular survival at low concentrations but decreased cellular survival significantly at high concentrations (>1.0 mg/ml) accompanied with increased NO production. CONCLUSIONS: High concentrations of bevacizumab may be toxic to HTMC.


Bevacizumab; Nitric oxide; Trabecular meshwork cells

MeSH Terms

Antibodies, Monoclonal, Humanized
Nitric Oxide
Trabecular Meshwork
Vascular Endothelial Growth Factor A
Antibodies, Monoclonal, Humanized
Nitric Oxide
Vascular Endothelial Growth Factor A


  • Figure 1. Bevacizumab decreased survival of trabecular meshwork cells significantly from 0.5 mg/ml and decreased markedly from 1.0 mg/ml of concentration. (∗ p<0.05)

  • Figure 2. Effect of L-NAME on the bevacizumab-induced decreased survival of trabecular meshwork cells. 0.5 mM L-NAME did not affect the survival significantly at high concentration. (∗ p<0.05)

  • Figure 3. Bevacizumab decreased NO production at lower concentrations but significantly increased at high concentrations in trabecular meshwork cells. (∗ p<0.05)

  • Figure 4. 0.5 mM L-NAME did not affect the bevacizumab-induced production of nitric oxide significantly at high concentrations in trabecular meshwork cells. (∗ p<0.05)

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