1
|
Meng J, Han X, Wang W, Gong X, Li W, Xiong K, Li Y, Zhang X, Liang X, Huang J, Huang W. Analysis of Iris volume using swept-source optical coherence tomography in patients with type 2 diabetes mellitus. Acta Ophthalmol 2022; 100:e553-e559. [PMID: 34137171 DOI: 10.1111/aos.14931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 02/22/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE To evaluate iris volume before and after pupil dilation using swept-source anterior segment optical coherence tomography (SS-ASOCT) and investigate the associated factors of iris volume and iris volume change after pupil dilation in patients with type 2 diabetes mellitus (T2DM). METHODS A cross-sectional study was conducted in Zhongshan Ophthalmic Center among T2DM registered patients in the community of Guangzhou, China. Anterior chamber volume (ACV), iris volume, anterior chamber depth (ACD), angle opening distance at 500 μm (AOD 500) and pupil diameter were estimated using SS-ASOCT (CASIA; Tomey, Nagoya, Japan). Venous blood was taken for the measurement of glycosylated haemoglobin A1c (HbAlc). All biometric measurements were performed before and after pharmacologic pupil dilation. RESULTS A total of 117 subjects were included in the analysis. The mean age (±SD) was 64.96 ± 7.75 years, and 62.4% were females. After pupil dilation, iris volume decreased in all eyes. Shorter duration of diabetes (p = 0.035), longer axial length (p < 0.001) and smaller pupil diameter (p < 0.001) were associated with larger iris volume. The change in iris volume per millimetre change in pupil diameter was 1.35mm3 /mm. Smaller baseline iris volume (p = 0.002) and higher HbA1c level (p = 0.010) were associated with smaller change in iris volume per millimetre change in pupil diameter, after adjusting for other factors. CONCLUSION Iris volume can be estimated by SS-ASOCT. Diabetic duration was associated with static anatomy of iris volume, while HbA1c level indicated the dynamic response of iris volume. It is likely that diabetic duration and HbA1c level could affect the macroscopic and microscopic composition of the iris in the diabetic population.
Collapse
Affiliation(s)
- Jie Meng
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Xiao Han
- Seventh Affiliated Hospital Sun Yat‐sen University Shenzhen China
| | - Wei Wang
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Xia Gong
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Wangting Li
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Kun Xiong
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Yuting Li
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Xiulan Zhang
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Xiaoling Liang
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Jingjing Huang
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| | - Wenyong Huang
- State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat‐sen University Guangzhou China
| |
Collapse
|
2
|
Alapati T, Sagal KM, Gudiseva HV, Pistilli M, Pyfer M, Chavali VRM, O’Brien JM. Evaluating TNF-α and Interleukin-2 (IL-2) Levels in African American Primary Open-Angle Glaucoma Patients. Genes (Basel) 2021; 13:genes13010054. [PMID: 35052396 PMCID: PMC8774833 DOI: 10.3390/genes13010054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/19/2021] [Accepted: 12/23/2021] [Indexed: 12/30/2022] Open
Abstract
Purpose: To establish if SNPs in TNF-α and IL-2 genes are associated with Primary Open-Angle Glaucoma (POAG) in African Americans (AA). We also determined whether plasma TNF-α and IL-2 levels could serve as biomarkers for POAG in African Americans using sandwich enzyme-linked immunosorbent assay. Methods: A single SNP association analysis was performed to investigate the association between potential gene variants in TNF-α and IL-2 genes and POAG in the AA population. Plasma samples from 190 African Americans (72 from normal subjects and 118 POAG cases) were obtained for TNF- α studies and 367 samples (135 from normal subjects and 232 from POAG cases) were obtained for IL-2 studies. TNF-α levels and IL-2 levels were measured by sandwich enzyme-linked immunosorbent assays (ELISA) and analyzed to see if they reached significance in cases with POAG and endophenotypes when compared to normal subjects. Results: The SNP, rs1800630, in TNF-α gene was found to be marginally associated with POAG. SNPs in IL-2 gene were not associated with POAG in the case-control analysis. No significant difference was found between TNF-α levels and IL-2 levels in normal and POAG case subjects in our study. IL-2 levels were inversely correlated with high IOP in POAG cases. Conclusions: Although we found a marginal SNP association of TNF-α, assessing the expression levels of TNF-α and IL-2 may serve as promising biomarkers for African American POAG. Further investigation is needed to determine if POAG can be subdivided into more specified cohorts of the disease, which may affect plasma cytokine levels differently.
Collapse
|
3
|
Yong H, Qi H, Yan H, Wu Q, Zuo L. The correlation between cytokine levels in the aqueous humor and the prognostic value of anti-vascular endothelial growth factor therapy for treating macular edema resulting from retinal vein occlusion. Graefes Arch Clin Exp Ophthalmol 2021; 259:3243-3250. [PMID: 34059950 DOI: 10.1007/s00417-021-05211-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/11/2021] [Accepted: 04/19/2021] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To determine the correlation between aqueous humor cytokine levels and the prognostic value of anti-vascular endothelial growth factor (VEGF) therapy for treating macular edema resulting from retinal vein occlusion (RVO-ME). METHODS This prospective study included 47 RVO-ME and 32 senile cataract cases. Aqueous humor collection was performed in patients with RVO-ME before intravitreal injection of ranibizumab and in patients before cataract surgery. VEGF, monocyte chemotactic protein 1 (MCP-1), interleukin (IL)-8, IL-6, basic fibroblast growth factor (b-FGF), and tumor necrosis factor-α (TNF-α) levels were measured in the aqueous humor. Central retinal thickness (CRT) was measured before ranibizumab treatment and during each follow-up visit. The recovery rate following ranibizumab treatment was calculated as (CRTBT-CRTAT1W)/CRTBT, in which CRTBT was the CRT measured before treatment and CRTAT1W was measured 1 week after treatment. The recurrence time of RVO-ME was recorded. RESULTS VEGF, MCP-1, IL-8, and IL-6 levels in the aqueous humor of patients with RVO-ME were significantly higher compared with control and were positively correlated with the CRTBT. Ranibizumab significantly reduced CRT, and VEGF levels positively correlated with the recovery rate. The mean recurrence time of RVO-ME was 43.5 days. IL-6 levels negatively correlated with the recurrence time of ME. CONCLUSION VEGF, MCP-1, IL-8, and IL-6 levels were significantly increased in patients with RVO-ME and were positively correlated with ME. Higher VEGF levels were indicative of CRT recovery, and higher IL-6 levels were indicative of ME recurrence after ranibizumab treatment.
Collapse
Affiliation(s)
- Hongfang Yong
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, Changchun, Jilin, 130041, China
| | - Hui Qi
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, Changchun, Jilin, 130041, China
| | - Hongtao Yan
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, Changchun, Jilin, 130041, China
| | - Qianqian Wu
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, Changchun, Jilin, 130041, China
| | - Ling Zuo
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, Changchun, Jilin, 130041, China.
| |
Collapse
|
4
|
Sheng A, Lin L, Zhu J, Zhuang J, Li J, Chang L, Cheng H. Micro/nanodevices for assessment and treatment in stomatology and ophthalmology. MICROSYSTEMS & NANOENGINEERING 2021; 7:11. [PMID: 33532080 PMCID: PMC7844113 DOI: 10.1038/s41378-021-00238-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/19/2020] [Accepted: 12/09/2020] [Indexed: 05/09/2023]
Abstract
Micro/nanodevices have been widely applied for the real-time monitoring of intracellular activities and the delivery of exogenous substances in the past few years. This review focuses on miniaturized micro/nanodevices for assessment and treatment in stomatology and ophthalmology. We first summarize the recent progress in this field by examining the available materials and fabrication techniques, device design principles, mechanisms, and biosafety aspects of micro/nanodevices. Following a discussion of biochemical sensing technology from the cellular level to the tissue level for disease assessment, we then summarize the use of microneedles and other micro/nanodevices in the treatment of oral and ocular diseases and conditions, including oral cancer, eye wrinkles, keratitis, and infections. Along with the identified key challenges, this review concludes with future directions as a small fraction of vast opportunities, calling for joint efforts between clinicians and engineers with diverse backgrounds to help facilitate the rapid development of this burgeoning field in stomatology and ophthalmology.
Collapse
Affiliation(s)
- An’an Sheng
- The Institute of Single Cell Engineering, Beijing Advanced Innovation Center for Biomedical Engineering; School of Biological Science and Medical Engineering, Beihang University, 100191 Beijing, China
- Department of Stomatology, Xiang’An Hospital of Xiamen University, 361100 Xiamen, China
- School of Stomatology, North China University of Science and Technology, 063210 Tangshan, China
| | - Long Lin
- The Institute of Single Cell Engineering, Beijing Advanced Innovation Center for Biomedical Engineering; School of Biological Science and Medical Engineering, Beihang University, 100191 Beijing, China
- Institute of Plastic Machinery and Plastic Engineering, School of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Jia Zhu
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802 USA
| | - Jian Zhuang
- Institute of Plastic Machinery and Plastic Engineering, School of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Jian Li
- Department of Stomatology, Xiang’An Hospital of Xiamen University, 361100 Xiamen, China
| | - Lingqian Chang
- The Institute of Single Cell Engineering, Beijing Advanced Innovation Center for Biomedical Engineering; School of Biological Science and Medical Engineering, Beihang University, 100191 Beijing, China
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Medical University, 230032 Hefei, China
| | - Huanyu Cheng
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802 USA
| |
Collapse
|
5
|
Vascular Endothelial Growth Factor, Basic Fibroblast Growth Factor, and Pigment Epithelium-Derived Factor Expression in the Neovascular Iris in Retinal Diseases. J Ophthalmol 2018; 2018:8025951. [PMID: 29850214 PMCID: PMC5925170 DOI: 10.1155/2018/8025951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 02/07/2018] [Accepted: 03/13/2018] [Indexed: 11/18/2022] Open
Abstract
Objective To determine the expression of cytokines in the iris of patients with neovascular glaucoma (NVG). Methods Patients with NVG associated with proliferative diabetic retinopathy (PDR, group 1) or central retinal vein occlusion (CRVO, group 2) who had undergone surgical treatment were enrolled. Patients with primary open-angle glaucoma requiring surgical treatment were included in the control group (group 3). All iris specimens were obtained during trabeculectomy, 7 days after intravitreal injections of ranibizumab. The messenger RNA (mRNA) and protein levels of three target cytokines—vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), and pigment epithelium-derived factor (PEDF)—in the iris were analyzed and compared. Results We included 39 eyes from 39 patients (12, 15, and 12 in groups 1, 2, and 3, resp.). The protein and mRNA levels of PEDF were higher in two NVG groups. The protein levels, but not mRNA level, of bFGF were higher in the two NVG groups. The protein and mRNA levels of VEGF were similar in the three groups. Conclusions The protein level of bFGF increased in the irises of the NVG patients was not expressed by the iris itself, whereas PEDF may be expressed by the iris tissue in these patients.
Collapse
|
6
|
Zeng HL, Shi JM. The role of microglia in the progression of glaucomatous neurodegeneration- a review. Int J Ophthalmol 2018; 11:143-149. [PMID: 29376003 DOI: 10.18240/ijo.2018.01.22] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 08/28/2017] [Indexed: 12/11/2022] Open
Abstract
Glaucoma is a serious leading cause of irreversible blindness worldwide. Reducing intraocular pressure (IOP) does not always stop glaucomatous neurodegeneration and the optic nerve may continue to be damaged in the normal IOP. Microglial activity has been recognized to play essential roles in pathogenesis of the central nervous system (CNS) as well as retinal ganglion cell (RGC) survival. The relationship between the neurodegeneration and the microglia cells in glaucoma is very complicated and still remains unclear. In the present review, we summarize the recent studies of mechanisms of microglia in glaucoma neurodegeneration, which might provide new ways to treat glaucoma.
Collapse
Affiliation(s)
- Hui-Lan Zeng
- Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China
| | - Jing-Ming Shi
- Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China
| |
Collapse
|
7
|
Yoshida S, Kobayashi Y, Nakao S, Sassa Y, Hisatomi T, Ikeda Y, Oshima Y, Kono T, Ishibashi T, Sonoda KH. Differential association of elevated inflammatory cytokines with postoperative fibrous proliferation and neovascularization after unsuccessful vitrectomy in eyes with proliferative diabetic retinopathy. Clin Ophthalmol 2017; 11:1697-1705. [PMID: 29033535 PMCID: PMC5614779 DOI: 10.2147/opth.s141821] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Pars plana vitrectomy is the only treatment for advanced proliferative diabetic retinopathy (PDR). However, vitrectomy is not always successful despite current progress in vitreoretinal surgical techniques. The aim of our study was to investigate whether the vitreal concentrations of MCP-1, IL-6, IL-8, and VEGF are elevated after unsuccessful vitrectomy in patients with PDR and to investigate whether the altered levels of these cytokines are associated with the cause for the reoperation. PATIENTS AND METHODS Vitreous samples were collected from 263 eyes of 233 patients: PDR (n=129 eyes), proliferative vitreoretinopathy (PVR; n=24 eyes) and nondiabetic controls (n=110 eyes) prior to vitrectomy. Vitreous samples were also collected from 14 eyes of 14 patients with PDR before vitrectomy and from the same 14 eyes before a second vitrectomy for reoperation. The levels of MCP-1, IL-6, IL-8, and VEGF were measured by flow cytometry using a cytometric bead array (CBA) assay. RESULTS The mean concentrations of vitreal MCP-1, IL-6, IL-8, and VEGF were significantly higher in patients with PDR and PVR (P<0.01). There were significantly high correlations among the concentrations of MCP-1, IL-6, and IL-8, whereas the correlation of VEGF with the other 3 cytokines was lower. Among the 14 patients who required reoperation, the mean vitreal concentrations of MCP-1, IL-6, and IL-8 were higher than that at the time of the initial vitrectomy (P<0.01). At the time of the reoperation vitrectomy, the mean vitreous level of MCP-1, IL-6, and IL-8 in eyes with fibrous proliferation was higher than in those without fibrous proliferation (P<0.05). In contrast, VEGF in eyes with neovascular glaucoma (NVG) or anterior hyaloidal fibrovascular proliferation (AHFVP) was higher than in the eyes without NVG and AHFVP (P<0.05). CONCLUSION The elevated levels of MCP-1, IL-6, and IL-8 may be the cause of the postoperative fibrous proliferation. In contrast, VEGF may be the cause of the neovascularization after unsuccessful vitrectomy in the eyes of PDR patients.
Collapse
Affiliation(s)
- Shigeo Yoshida
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Yoshiyuki Kobayashi
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Shintaro Nakao
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Yukio Sassa
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka.,Fukuoka University Chikushi Hospital, Chikushino, Japan
| | - Toshio Hisatomi
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Yasuhiro Ikeda
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Yuji Oshima
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | | | - Tatsuro Ishibashi
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka
| | - Koh-Hei Sonoda
- Department of Ophthalmology, Kyushu University Graduate School of Medical Sciences, Fukuoka
| |
Collapse
|
8
|
Tong Y, Zhou YL, Zheng Y, Biswal M, Zhao PQ, Wang ZY. Analyzing cytokines as biomarkers to evaluate severity of glaucoma. Int J Ophthalmol 2017; 10:925-930. [PMID: 28730084 DOI: 10.18240/ijo.2017.06.15] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 02/06/2017] [Indexed: 11/23/2022] Open
Abstract
AIM To analyze cytokines as biomarkers for evaluation of severity of glaucoma. METHODS This was a prospective case-control study including 29 eyes with glaucoma. Besides, 28 eyes with senile cataract were used as control. Patients were classified into four groups: acute angle closure glaucoma (AACG), chronic angle closure glaucoma (CACG), primary open angle glaucoma (POAG) and senile cataract. Undiluted vitreous samples were collected, then vitreous concentrations of 9 types of cytokines were determined by cytometric bead assay system: γ-interferon (IFNg), interleukin (IL)-10, IL-2, IL-4, IL-5, interferon-γ-inducible protein (IP)-10, monocyte chemoattractant protein (MCP)-1, tumor necrosis factor (TNF)-α, and vascular endothelial growth factor (VEGF). We also recorded the intraocular pressure (IOP) of patients in each group and Pearson correlated analysis was performed to analysis the correlation between each type of cytokine with IOP. RESULTS Vitreous levels of IL-2, IL-5, MCP-1, TNF-α and IP-10 were significantly higher (P<0.05) in AACG group. Patients with AACG, CACG and POAG have higher IOP than senile cataract, but we didn't find any significant correlation between IOP with any type of the cytokines. CONCLUSION Inflammation and immune reaction have a strong link with the pathology of glaucoma especially AACG. Some cytokines may act as biomarkers to evaluate the severity of glaucoma. Anti-inflammatory treatments and controlling of IOP are necessary for the therapy of glaucoma.
Collapse
Affiliation(s)
- Yao Tong
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China.,Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Ya-Li Zhou
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Yan Zheng
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China.,Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Chongming Branch, Shanghai 202150, China
| | - Manas Biswal
- Department of Molecular Genetics, University of Florida, Gainesville, Florida 32610, USA
| | - Pei-Quan Zhao
- Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Zhao-Yang Wang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| |
Collapse
|
9
|
Abstract
To evaluate the prevalence and risk factors of neovascular glaucoma (NVG) after vitrectomy in patients with vitreous hemorrhage associated with proliferative diabetic retinopathy (PDR). This retrospective, noncomparative, observational study included 127 eyes of 127 patients with PDR who received vitrectomy with a follow-up period of at least 6 months. The prevalence of NVG and associated risk factors were assessed including sex, age, previous panretinal photocoagulation, baseline intraocular pressure, combined phacovitrectomy, and pretreatment with intravitreal bevacizumab (IVB) before vitrectomy for the treatment of vitreous hemorrhage. NVG developed in 15 (11.8%) of 127 patients. Of the 15 eyes with NVG, 11 cases (73.3%) postoperatively developed NVG within 6 months. Postoperative NVG was associated with preoperative IVB treatment (odds ratio, 4.43; P = 0.019). The prevalence of NVG after vitrectomy was 11.8%, and an associated risk factor for NVG was preoperative IVB for the treatment of vitreous hemorrhage.
Collapse
|
10
|
Rezar-Dreindl S, Eibenberger K, Pollreisz A, Bühl W, Georgopoulos M, Krall C, Dunavölgyi R, Weigert G, Kroh ME, Schmidt-Erfurth U, Sacu S. Effect of intravitreal dexamethasone implant on intra-ocular cytokines and chemokines in eyes with retinal vein occlusion. Acta Ophthalmol 2017; 95:e119-e127. [PMID: 27417275 DOI: 10.1111/aos.13152] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/04/2016] [Indexed: 12/27/2022]
Abstract
PURPOSE To investigate the influence of intravitreal dexamethasone implant on inflammatory and angiogenic cytokine levels in the aqueous of patients with retinal vein occlusion (RVO). METHODS Forty eyes of 40 consecutive patients with macular oedema (ME) due to branch and central retinal vein occlusion (BRVO/CRVO) were treated with an intravitreal dexamethasone implant (Ozurdex® ) at baseline and evaluated until month 6. Retreatment was performed in case of recurrent ME earliest 4 months after the baseline treatment. Aqueous humour samples were taken at baseline, months 1, 3, 6 and at the time of each retreatment. Concentrations of 29 different cytokines were measured by Luminex® bead assays. The control group comprised healthy patients undergoing cataract surgery. RESULTS At baseline concentrations of interleukin (IL)-8, angiopoietin (ANG)-2 and intercellular adhesion molecule (ICAM)-1 were highly elevated in patients with CRVO compared with controls (p = 0.006; p = 0.02; p = 0.03). Vascular endothelial growth factor (VEGF) concentrations were upregulated in patients with BRVO and CRVO (p = 0.003; p = 0.001). Retreatment with a dexamethasone implant was necessary after 4 months in 14/8 (BRVO/CRVO) patients, 5 months in 5/3 patients and 6 months in one patient (BRVO). After the initial treatment, macrophage chemo-attractant protein (MCP)-1 and IL17-E concentrations decreased in BRVO (p < 0.001; p = 0.01) and MCP-1 and IL1-α in CRVO (p = 0.01; p = 0.003). Vascular endothelial growth factor (VEGF) concentrations did not change during treatment in either group (p = 0.3). A mixed-effect model showed that cytokine concentrations positively correlated with central retinal thickness changes. CONCLUSIONS Intravitreal dexamethasone treatment resulted in alterations in the concentrations of pro-inflammatory cytokines MCP-1 and IL17-E in patients with BRVO and MCP-1 and IL1-α in patients with CRVO. These data highlight the important role of inflammatory mediators involved in ME due to RVO.
Collapse
Affiliation(s)
| | | | - Andreas Pollreisz
- Department of Ophthalmology; Medical University of Vienna; Vienna VIE Austria
| | - Wolf Bühl
- Department of Ophthalmology; Medical University of Vienna; Vienna VIE Austria
| | | | - Christoph Krall
- Department of Medical Statistics; Medical University of Vienna; Vienna VIE Austria
| | - Roman Dunavölgyi
- Department of Ophthalmology; Medical University of Vienna; Vienna VIE Austria
| | - Günther Weigert
- Department of Ophthalmology; Medical University of Vienna; Vienna VIE Austria
| | | | | | - Stefan Sacu
- Department of Ophthalmology; Medical University of Vienna; Vienna VIE Austria
| |
Collapse
|
11
|
Affiliation(s)
- Hassan Ghasemi
- Department of Ophthalmology, Shahed University, Tehran, Iran
| |
Collapse
|
12
|
Ramachandran PS, Lee V, Wei Z, Song JY, Casal G, Cronin T, Willett K, Huckfeldt R, Morgan JIW, Aleman TS, Maguire AM, Bennett J. Evaluation of Dose and Safety of AAV7m8 and AAV8BP2 in the Non-Human Primate Retina. Hum Gene Ther 2016; 28:154-167. [PMID: 27750461 DOI: 10.1089/hum.2016.111] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Within the next decade, we will see many gene therapy clinical trials for eye diseases, which may lead to treatments for thousands of visually impaired people around the world. To target retinal diseases that affect specific cell types, several recombinant adeno-associated virus (AAV) serotypes have been generated and used successfully in preclinical mouse studies. Because there are numerous anatomic and physiologic differences between the eyes of mice and "men" and because surgical delivery approaches and immunologic responses also differ between these species, this study evaluated the transduction characteristics of two promising new serotypes, AAV7m8 and AAV8BP2, in the retinas of animals that are most similar to those of humans: non-human primates (NHPs). We report that while AAV7m8 efficiently targets a variety of cell types by subretinal injection in NHPs, transduction after intravitreal delivery was mostly restricted to the inner retina at lower doses that did not induce an immune response. AAV8BP2 targets the cone photoreceptors efficiently but bipolar cells inefficiently by subretinal injection. Additionally, transduction by both serotypes in the anterior chamber of the eye and the optic pathway of the brain was observed post-intravitreal delivery. Finally, we assessed immunogenicity, keeping in mind that these AAV capsids may be used in future clinical trials. We found that AAV8BP2 had a better safety profile compared with AAV7m8, even at the highest doses administered. These studies underscore the differences in AAV transduction between mice and primates, highlighting the importance of careful evaluation of therapeutic vectors in NHPs prior to moving to clinical trials.
Collapse
Affiliation(s)
- Pavitra S Ramachandran
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Vivian Lee
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Zhangyong Wei
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Ji Yun Song
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Giulia Casal
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Therese Cronin
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Keirnan Willett
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Rachel Huckfeldt
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Jessica I W Morgan
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Tomas S Aleman
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Albert M Maguire
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Jean Bennett
- Center for Advanced Retinal and Ocular Therapeutics (CAROT) and F.M. Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| |
Collapse
|
13
|
Masuzzo A, Dinet V, Cavanagh C, Mascarelli F, Krantic S. Amyloidosis in Retinal Neurodegenerative Diseases. Front Neurol 2016; 7:127. [PMID: 27551275 PMCID: PMC4976396 DOI: 10.3389/fneur.2016.00127] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 07/27/2016] [Indexed: 01/18/2023] Open
Abstract
As a part of the central nervous system, the retina may reflect both physiological processes and abnormalities related to pathologies that affect the brain. Amyloidosis due to the accumulation of amyloid-beta (Aβ) was initially regarded as a specific and exclusive characteristic of neurodegenerative alterations seen in the brain of Alzheimer's disease (AD) patients. More recently, it was discovered that amyloidosis-related alterations, similar to those seen in the brain of Alzheimer's patients, also occur in the retina. Remarkably, these alterations were identified not only in primary retinal pathologies, such as age-related macular degeneration (AMD) and glaucoma, but also in the retinas of Alzheimer's patients. In this review, we first briefly discuss the biogenesis of Aβ, a peptide involved in amyloidosis. We then discuss some pathological aspects (synaptic dysfunction, mitochondrial failure, glial activation, and vascular abnormalities) related to the neurotoxic effects of Aβ. We finally highlight common features shared by AD, AMD, and glaucoma in the context of Aβ amyloidosis and further discuss why the retina, due to the transparency of the eye, can be considered as a "window" to the brain.
Collapse
Affiliation(s)
- Ambra Masuzzo
- Centre de Recherche des Cordeliers, Institut national de la santé et de la recherche médicale (INSERM), Université Paris Descartes, Sorbonne Paris Cité, UMR_S 1138, Université Pierre et Marie Curie Université Paris 06, Sorbonne Universités , Paris , France
| | - Virginie Dinet
- Centre de Recherche des Cordeliers, Institut national de la santé et de la recherche médicale (INSERM), Université Paris Descartes, Sorbonne Paris Cité, UMR_S 1138, Université Pierre et Marie Curie Université Paris 06, Sorbonne Universités , Paris , France
| | - Chelsea Cavanagh
- Department of Neuroscience, Douglas Hospital Research Center , Montreal, QC , Canada
| | - Frederic Mascarelli
- Centre de Recherche des Cordeliers, Institut national de la santé et de la recherche médicale (INSERM), Université Paris Descartes, Sorbonne Paris Cité, UMR_S 1138, Université Pierre et Marie Curie Université Paris 06, Sorbonne Universités , Paris , France
| | - Slavica Krantic
- Centre de Recherche des Cordeliers, Institut national de la santé et de la recherche médicale (INSERM), Université Paris Descartes, Sorbonne Paris Cité, UMR_S 1138, Université Pierre et Marie Curie Université Paris 06, Sorbonne Universités , Paris , France
| |
Collapse
|