Cytokine Levels in Human Vitreous in Proliferative Diabetic Retinopathy

In this study, we compare the vitreous cytokine profile in patients with proliferative diabetic retinopathy (PDR) to that of patients without PDR. The identification of novel cytokines involved in the pathogenesis of PDR provides candidate therapeutic targets that may stand alone or work synergistic...

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Main Authors: Dean F. Loporchio, Emily K. Tam, Jane Cho, Jaeyoon Chung, Gyungah R. Jun, Weiming Xia, Marissa G. Fiorello, Nicole H. Siegel, Steven Ness, Thor D. Stein, Manju L. Subramanian
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Cells
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Online Access:https://www.mdpi.com/2073-4409/10/5/1069
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author Dean F. Loporchio
Emily K. Tam
Jane Cho
Jaeyoon Chung
Gyungah R. Jun
Weiming Xia
Marissa G. Fiorello
Nicole H. Siegel
Steven Ness
Thor D. Stein
Manju L. Subramanian
author_facet Dean F. Loporchio
Emily K. Tam
Jane Cho
Jaeyoon Chung
Gyungah R. Jun
Weiming Xia
Marissa G. Fiorello
Nicole H. Siegel
Steven Ness
Thor D. Stein
Manju L. Subramanian
author_sort Dean F. Loporchio
collection DOAJ
description In this study, we compare the vitreous cytokine profile in patients with proliferative diabetic retinopathy (PDR) to that of patients without PDR. The identification of novel cytokines involved in the pathogenesis of PDR provides candidate therapeutic targets that may stand alone or work synergistically with current therapies in the management of diabetic retinopathy. Undiluted vitreous humor specimens were collected from 74 patients undergoing vitrectomy for various vitreoretinal disorders. Quantitative immunoassay was performed for a panel of 36 neuroinflammatory cytokines in each specimen and assessed to identify differences between PDR (<i>n</i> = 35) and non-PDR (<i>n</i> = 39) patients. Levels of interleukin-8 (IL-8), IL-15, IL-16, vascular endothelial growth factor (VEGF), VEGF-D, c-reactive protein (CRP), serum amyloid-A (SAA), and intracellular adhesion molecule-1 (ICAM1) were significantly increased in the vitreous of PDR patients compared to non-PDR patients (<i>p</i> < 0.05). We report novel increases in IL-15 and IL-16, in addition to the expected VEGF, in the human vitreous humor of patients with PDR. Additionally, we confirm the elevation of ICAM-1, VCAM-1, SAA, IL-8 and CRP in the vitreous of patients with PDR, which has previously been described.
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spelling doaj.art-8f48d3d97b7942bb9152e9be872456032023-11-21T17:59:20ZengMDPI AGCells2073-44092021-04-01105106910.3390/cells10051069Cytokine Levels in Human Vitreous in Proliferative Diabetic RetinopathyDean F. Loporchio0Emily K. Tam1Jane Cho2Jaeyoon Chung3Gyungah R. Jun4Weiming Xia5Marissa G. Fiorello6Nicole H. Siegel7Steven Ness8Thor D. Stein9Manju L. Subramanian10Department of Ophthalmology, Boston University School of Medicine & Boston Medical Center, Boston, MA 02118, USADepartment of Ophthalmology, Boston University School of Medicine & Boston Medical Center, Boston, MA 02118, USADepartment of Ophthalmology, Boston University School of Medicine & Boston Medical Center, Boston, MA 02118, USADepartment of Medicine (Biomedical Genetics), Boston University School of Medicine, 72 East Concord Street, Boston, MA 02118, USADepartment of Medicine (Biomedical Genetics), Boston University School of Medicine, 72 East Concord Street, Boston, MA 02118, USADepartment of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA 02118, USADepartment of Ophthalmology, Boston University School of Medicine & Boston Medical Center, Boston, MA 02118, USADepartment of Ophthalmology, Boston University School of Medicine & Boston Medical Center, Boston, MA 02118, USADepartment of Ophthalmology, Boston University School of Medicine & Boston Medical Center, Boston, MA 02118, USALaboratory Medicine, Department of Pathology, Boston University School of Medicine, Boston, MA 02118, USADepartment of Ophthalmology, Boston University School of Medicine & Boston Medical Center, Boston, MA 02118, USAIn this study, we compare the vitreous cytokine profile in patients with proliferative diabetic retinopathy (PDR) to that of patients without PDR. The identification of novel cytokines involved in the pathogenesis of PDR provides candidate therapeutic targets that may stand alone or work synergistically with current therapies in the management of diabetic retinopathy. Undiluted vitreous humor specimens were collected from 74 patients undergoing vitrectomy for various vitreoretinal disorders. Quantitative immunoassay was performed for a panel of 36 neuroinflammatory cytokines in each specimen and assessed to identify differences between PDR (<i>n</i> = 35) and non-PDR (<i>n</i> = 39) patients. Levels of interleukin-8 (IL-8), IL-15, IL-16, vascular endothelial growth factor (VEGF), VEGF-D, c-reactive protein (CRP), serum amyloid-A (SAA), and intracellular adhesion molecule-1 (ICAM1) were significantly increased in the vitreous of PDR patients compared to non-PDR patients (<i>p</i> < 0.05). We report novel increases in IL-15 and IL-16, in addition to the expected VEGF, in the human vitreous humor of patients with PDR. Additionally, we confirm the elevation of ICAM-1, VCAM-1, SAA, IL-8 and CRP in the vitreous of patients with PDR, which has previously been described.https://www.mdpi.com/2073-4409/10/5/1069diabetic retinopathyvitreous cytokinesquantitative immunoassayneuroinflammatory markersvascular endothelial growth factorinterleukin-8
spellingShingle Dean F. Loporchio
Emily K. Tam
Jane Cho
Jaeyoon Chung
Gyungah R. Jun
Weiming Xia
Marissa G. Fiorello
Nicole H. Siegel
Steven Ness
Thor D. Stein
Manju L. Subramanian
Cytokine Levels in Human Vitreous in Proliferative Diabetic Retinopathy
Cells
diabetic retinopathy
vitreous cytokines
quantitative immunoassay
neuroinflammatory markers
vascular endothelial growth factor
interleukin-8
title Cytokine Levels in Human Vitreous in Proliferative Diabetic Retinopathy
title_full Cytokine Levels in Human Vitreous in Proliferative Diabetic Retinopathy
title_fullStr Cytokine Levels in Human Vitreous in Proliferative Diabetic Retinopathy
title_full_unstemmed Cytokine Levels in Human Vitreous in Proliferative Diabetic Retinopathy
title_short Cytokine Levels in Human Vitreous in Proliferative Diabetic Retinopathy
title_sort cytokine levels in human vitreous in proliferative diabetic retinopathy
topic diabetic retinopathy
vitreous cytokines
quantitative immunoassay
neuroinflammatory markers
vascular endothelial growth factor
interleukin-8
url https://www.mdpi.com/2073-4409/10/5/1069
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