EFFECTS OF INTRAVITREAL INJECTION OF BEVACIZUMAB ON INFLAMMATORY CYTOKINES IN THE VITREOUS WITH PROLIFERATIVE DIABETIC RETINOPATHY
- 1 January 2014
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Retina
- Vol. 34 (1), 165-171
- https://doi.org/10.1097/iae.0b013e3182979df6
Abstract
Background: To investigate the effects of preoperative intravitreal injection of bevacizumab (IVB) on the levels of 27 inflammatory cytokines, including interleukins (ILs) and vascular endothelial growth factor. Methods: From among 200 patients who had proliferative diabetic retinopathy and underwent vitrectomy in our department from September 2009 to October 2010, 8 study subjects met the enrollment criteria in which both eyes at nearly equivalent stages underwent vitrectomy. The first vitrectomy for each patient was performed without IVB (control group), whereas the second vitrectomy on the contralateral eye was performed with IVB treatment (1.25 mg/0.05 mL) 3 days before surgery (IVB group). Undiluted vitreous fluid was collected at the start of each vitrectomy. A multiplex assay was used to simultaneously determine the levels of 27 inflammatory cytokines and growth factors. Results: Mean vascular endothelial growth factor levels were significantly lower in the IVB group (519.69 pg/mL) than in the control group (11,807.44 pg/mL) (P = 0.012, Wilcoxon signed rank test). Moreover, the mean levels (IVB/control, pg/mL) of IL-1RA (38.50/62.31, P = 0.036), IL-5 (27.75/34.00, P = 0.018), IL-10 (433.63/1,995.94, P = 0.012), IL-12 (246.69/1,033.69, P = 0.012), IL-13 (707.50/1,450.38, P = 0.012), and interferon γ (71.13/84.69, P = 0.036) were significantly lower in the IVB group. No other significant differences were observed in the levels of the other 20 cytokines and growth factors between the 2 groups. Conclusion: Preoperative IVB reduced not only the intravitreal vascular endothelial growth factor level but also the intravitreal levels of other inflammatory cytokines, including IL-1RA, IL-5, IL-10, IL-12, IL-13, and interferon γ. These results indicate the interaction of some cytokines in the vitreous fluid of proliferative diabetic retinopathy patients and suggest the possibility that preoperative IVB may not only reduce vascular proliferation by its direct antivascular endothelial growth factor effect but also modulate the inflammatory response through putative cytokine networks. None of the other cytokines examined were elevated after IVB.Keywords
This publication has 38 references indexed in Scilit:
- Expression profiles of cytokines and chemokines in vitreous fluid in diabetic retinopathy and central retinal vein occlusionJapanese Journal of Ophthalmology, 2011
- Inflammatory and Angiogenic Factors in the Aqueous Humor and the Relationship to Diabetic RetinopathyCurrent Eye Research, 2010
- CORRELATION OF VASCULAR ENDOTHELIAL GROWTH FACTOR WITH CHEMOKINES IN THE VITREOUS IN DIABETIC RETINOPATHYRetina, 2010
- Comprehensive Analysis of Inflammatory Immune Mediators in Vitreoretinal DiseasesPLOS ONE, 2009
- PROINFLAMMATORY CYTOKINES AND ANGIOGENIC AND ANTI-ANGIOGENIC FACTORS IN VITREOUS OF PATIENTS WITH PROLIFERATIVE DIABETIC RETINOPATHY AND EALES’ DISEASERetina, 2008
- Vitreous and aqueous concentrations of proangiogenic, antiangiogenic factors and other cytokines in diabetic retinopathy patients with macular edema: Implications for structural differences in macular profilesExperimental Eye Research, 2006
- Vitreous Levels of Vascular Endothelial Growth Factor and Intercellular Adhesion Molecule 1 Are Related to Diabetic Macular EdemaOphthalmology, 2005
- Vitreous levels of interleukin-6 and vascular endothelial growth factor are related to diabetic macular edemaOphthalmology, 2003
- Unbalanced vitreous levels of pigment epithelium-derived factor and vascular endothelial growth factor in diabetic retinopathyAmerican Journal of Ophthalmology, 2002
- Vascular Endothelial Growth Factor in Ocular Fluid of Patients with Diabetic Retinopathy and Other Retinal DisordersNew England Journal of Medicine, 1994