PMID- 15910622 OWN - NLM STAT- MEDLINE DCOM- 20050801 LR - 20220330 IS - 0742-3071 (Print) IS - 0742-3071 (Linking) VI - 22 IP - 6 DP - 2005 Jun TI - Interleukin-8, monocyte chemoattractant protein-1 and IL-10 in the vitreous fluid of patients with proliferative diabetic retinopathy. PG - 719-22 AB - AIMS: To determine the intra-vitreous levels of two pro-inflammatory cytokines [interleukin-8 (IL-8), monocyte chemoattractant protein-1 (MCP-1)] and the anti-inflammatory cytokine interleukin-10 (IL-10) in patients with proliferative diabetic retinopathy (PDR). In addition, the relationship between the profile of cytokines and PDR activity has also been evaluated. PATIENTS AND METHODS: The study included 22 consecutive diabetic patients with PDR (4 Type 1 and 18 Type 2) on whom a vitrectomy was performed. Sixteen age-matched non-diabetic patients with other conditions requiring vitrectomy, but in which the retina was not directly affected by neovascularization served as a control group. IL-8, MCP-1 and IL-10 were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS: The vitreal levels of both IL-8 and MCP-1 were strikingly higher in diabetic patients with PDR in comparison with the control group [173.5 (64-1670) vs. 49 pg/ml (25-145), P < 0.001, and 2171 (388-6155) vs. 438 pg/ml (207-1344), P < 0.001, respectively]. In addition, the vitreous concentrations of IL-8 and MCP-1 were higher in patients with active PDR than in those patients with quiescent PDR [324.5 (80-1670) vs. 173.5 pg/ml (64-487), P = 0.06 and 3596 (1670-6155) vs. 1143 pg/ml (388-2500), P = 0.01, respectively]. However, vitreal levels of IL-10 in diabetic patients were similar to that obtained in the control group [2.89 (1.55-5.50) vs. 2.46 pg/ml (2.2-5.41), P = NS]. CONCLUSIONS: The pro-inflammatory cytokines IL-8 and MCP-1 are increased in the vitreous fluid of PDR patients without an increase in the anti-inflammatory cytokine IL-10. In addition, both IL-8 and MCP-1 intra-vitreous levels correlated with PDR activity, thus suggesting that these cytokines may be pathogenically important in PDR. FAU - Hernandez, C AU - Hernandez C AD - Diabetes Research Unit (Division of Endocrinology), Hospital Universitari Vall d'Hebron, Barcelona, Spain. FAU - Segura, R M AU - Segura RM FAU - Fonollosa, A AU - Fonollosa A FAU - Carrasco, E AU - Carrasco E FAU - Francisco, G AU - Francisco G FAU - Simo, R AU - Simo R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Diabet Med JT - Diabetic medicine : a journal of the British Diabetic Association JID - 8500858 RN - 0 (Chemokine CCL2) RN - 0 (Interleukin-8) RN - 130068-27-8 (Interleukin-10) SB - IM MH - Aged MH - Chemokine CCL2/*metabolism MH - Diabetes Mellitus, Type 1/metabolism MH - Diabetes Mellitus, Type 2/metabolism MH - Diabetic Retinopathy/*metabolism MH - Enzyme-Linked Immunosorbent Assay/methods MH - Female MH - Humans MH - Interleukin-10/*metabolism MH - Interleukin-8/*metabolism MH - Male MH - Middle Aged MH - Vitreous Body/*chemistry EDAT- 2005/05/25 09:00 MHDA- 2005/08/02 09:00 CRDT- 2005/05/25 09:00 PHST- 2005/05/25 09:00 [pubmed] PHST- 2005/08/02 09:00 [medline] PHST- 2005/05/25 09:00 [entrez] AID - DME1538 [pii] AID - 10.1111/j.1464-5491.2005.01538.x [doi] PST - ppublish SO - Diabet Med. 2005 Jun;22(6):719-22. doi: 10.1111/j.1464-5491.2005.01538.x.