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ORIGINAL ARTICLE
Year : 2015  |  Volume : 63  |  Issue : 12  |  Page : 905-911

Intraocular cytokines in retinal vein occlusion and its relation to the efficiency of anti-vascular endothelial growth factor therapy


1 S.N. Fyodorov Federal State Institution, Intersectoral Research and Technology Complex, Ministry of Health of Russian Federation, Novosibirsk; Federal State Budgetary Educational Institution "Irkutsk State Medical University" of Ministry of Health of Russian Federation, Novosibirsk, Russia
2 S.N. Fyodorov Federal State Institution, Intersectoral Research and Technology Complex, Ministry of Health of Russian Federation, Novosibirsk; Federal State Budgetary Educational Institution "Irkutsk State Medical Academy of Postgraduate Education" of Ministry of Health of Russian Federation, Novosibirsk, Russia
3 Federal State Budgetary Educational Institution "Research Institute of Fundamental and Clinical Immunology", Novosibirsk, Russia
4 Federal State Budgetary Educational Institution "Irkutsk State Medical Academy of Postgraduate Education" of Ministry of Health of Russian Federation, Novosibirsk, Russia

Correspondence Address:
Dr. Igor V Zlobin
337 Lermontova Street, 664033 Irkutsk
Russia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.176031

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Purpose: To analyze the change in the concentration of intraocular cytokines (ICs) in patients with retinal vein occlusion (RVO) before and after intravitreal ranibizumab therapy (IVR), and to find the correlations of IC with clinical activity of RVO and efficiency of treatment. Materials and Methods: Forty-four patients aged 46–79 years old (mean age: 60.7 ± 7.5 years old) with RVO and macular edema (18 patients – with central RVO, 26 – with branch RVO) treated with IVR were included into the study. The concentrations of 27 cytokines were simultaneously measured in aqueous humor by flow fluorometry using Bio-Plex Pro Human Cytokine Panel, 27-Plex (Bio-Rad Laboratories, USA) at baseline and after the first IVR. Control group consisted of 20 age-matched patients. Results: The levels of 11 cytokines (vascular endothelial growth factor [VEGF], receptor antagonist interleukin-1, interleukin-6 [IL-6], IL-8, IL-9, IL-10, IL-12r70, IL-13, IL-15, monocyte chemotactic protein-1 [MCP-1], regulated on activation, normal T expressed and secreted) were significantly (P < 0.05) different compared to control and significantly (P < 0.05) changed after IVR both in central and branch RVO. The patients were divided into two groups: the first -"effective" and the second - "partially effective" therapy. The second group characterized by the higher concentrations of VEGF, IL-8, IL-10, IL-17, and MCP-1 at baseline compared to the first group. Conclusion: The patients with RVO were characterized by the increased levels of VEGF and other pro- and anti-inflammatory cytokines and chemokines. Aqueous concentration of cytokines were different in patients with central and branch RVO and significantly changed after IVR. Insufficient response to IVR was associated with activation of immune-inflammatory processes.


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