PMID- 21850157 OWN - NLM STAT- MEDLINE DCOM- 20111206 LR - 20220408 IS - 1090-0535 (Electronic) IS - 1090-0535 (Linking) VI - 17 DP - 2011 TI - High-mobility group box-1 and biomarkers of inflammation in the vitreous from patients with proliferative diabetic retinopathy. PG - 1829-38 AB - PURPOSE: To measure levels of high-mobility group box -1 (HMGB1) and soluble receptor for advanced glycation end products (sRAGE) in the vitreous fluid from patients with proliferative diabetic retinopathy (PDR) and to correlate their levels with clinical disease activity and the levels of the inflammatory biomarkers monocyte chemoattractant protein-1 (MCP-1), soluble intercellular adhesion molecule-1 (sICAM-1), interleukin-1beta (IL-1beta), and granulocyte macrophage colony-stimulating factor (GM-CSF). In addition, we examined the expression of HMGB1 in the retinas of diabetic mice. METHODS: Vitreous samples from 29 PDR and 17 nondiabetic patients were studied by enzyme-linked immunosorbent assay. Retinas of mice were examined by immunofluorescence analysis and western blotting. RESULTS: HMGB1 was detected in all vitreous samples and sRAGE was detected in 5 PDR samples. IL-1beta was detected in 3PDR samples and GM-CSF was not detected. Mean HMGB1 levels in PDR with active neovascularization were twofold and threefold higher than that in inactive PDR and nondiabetic patients, respectively. Mean HMGB1 levels in PDR patients with hemorrhage were significantly higher than those in PDR patients without hemorrhage and nondiabetic patients (p=0.0111). There were significant correlations between levels of HMGB1 and levels of MCP-1 (r=0.333, p=0.025) and sICAM-1 (r=0.548, p<0.001). HMGB1 expression was also upregulated in the retinas of diabetic mice. CONCLUSIONS: Subclinical chronic inflammation might contribute to the progression of PDR. FAU - El-Asrar, Ahmed M Abu AU - El-Asrar AM AD - Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia. abuasrar@KSU.edu.sa FAU - Nawaz, Mohd Imtiaz AU - Nawaz MI FAU - Kangave, Dustan AU - Kangave D FAU - Geboes, Karel AU - Geboes K FAU - Ola, Mohammad Shamsul AU - Ola MS FAU - Ahmad, Saif AU - Ahmad S FAU - Al-Shabrawey, Mohamed AU - Al-Shabrawey M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110706 PL - United States TA - Mol Vis JT - Molecular vision JID - 9605351 RN - 0 (Biomarkers) RN - 0 (Chemokine CCL2) RN - 0 (HMGB1 Protein) RN - 0 (Interleukin-1beta) RN - 0 (Receptor for Advanced Glycation End Products) RN - 0 (Receptors, Immunologic) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) SB - IM MH - Adult MH - Aged MH - Animals MH - Biomarkers/*analysis MH - Blotting, Western MH - Chemokine CCL2/analysis/biosynthesis MH - Diabetes Complications/*metabolism/pathology/surgery MH - Diabetes Mellitus/*metabolism/pathology/surgery MH - Diabetic Retinopathy/etiology/*metabolism/pathology/surgery MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - HMGB1 Protein/analysis/biosynthesis MH - Humans MH - Inflammation/*metabolism MH - Intercellular Adhesion Molecule-1/analysis/biosynthesis MH - Interleukin-1beta/analysis/biosynthesis MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Middle Aged MH - Receptor for Advanced Glycation End Products MH - Receptors, Immunologic/analysis/biosynthesis MH - Retina/*metabolism/pathology MH - Retinal Neovascularization/etiology/*metabolism/pathology/surgery MH - Vitrectomy MH - Vitreoretinopathy, Proliferative/etiology/*metabolism/pathology/surgery MH - Vitreous Body/*metabolism/pathology/surgery PMC - PMC3137555 EDAT- 2011/08/19 06:00 MHDA- 2011/12/13 00:00 PMCR- 2011/01/01 CRDT- 2011/08/19 06:00 PHST- 2011/03/09 00:00 [received] PHST- 2011/07/01 00:00 [accepted] PHST- 2011/08/19 06:00 [entrez] PHST- 2011/08/19 06:00 [pubmed] PHST- 2011/12/13 00:00 [medline] PHST- 2011/01/01 00:00 [pmc-release] AID - 200 [pii] AID - 2011MOLVIS0125 [pii] PST - ppublish SO - Mol Vis. 2011;17:1829-38. Epub 2011 Jul 6.