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Yang CJ, Huang WL, Yang Y, Kuan CH, Tseng CL, Wang TW. Zwitterionic modified and freeze-thaw reinforced foldable hydrogel as intraocular lens for posterior capsule opacification prevention. Biomaterials 2024; 309:122593. [PMID: 38713971 DOI: 10.1016/j.biomaterials.2024.122593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/04/2024] [Accepted: 04/25/2024] [Indexed: 05/09/2024]
Abstract
Posterior capsule opacification (PCO) is a predominant postoperative complication, often leading to visual impairment due to the aberrant proliferation and adhesion of lens epithelial cells (LECs) and protein precipitates subsequent to intraocular lens (IOL) implantation. To address this clinical issue, a foldable and antifouling sharp-edged IOL implant based on naturally-derived cellulose hydrogel is synthesized. The mechanical strength and transparency of the hydrogel is enhanced via repeated freeze-thaw (FT) cycles. The incorporated zwitterionic modifications can remarkably prevent the incidence of PCO by exhibiting proteins repulsion and cell anti-adhesion properties. The graft of dopamine onto both the haptic and the periphery of the posterior surface ensures the adhesion of the hydrogel to the posterior capsule and impedes the migration of LECs without compromising transparency. In in vivo study, the zwitterionic modified foldable hydrogel exhibits uveal and capsular biocompatibility synchronously with no signs of inflammatory response and prevent PCO formation, better than that of commercialized and PEG-modified IOL. With foldability, endurability, antifouling effect, and adhesive to posterior capsule, the reported hydrogel featuring heterogeneous surface design displays great potential to eradicate PCO and attain post-operative efficacy after cataract surgery.
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Affiliation(s)
- Cheng-Jui Yang
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Wei-Lun Huang
- Department of Ophthalmology, National Taiwan University Hospital Hsin-Cchu Branch; Hsinchu, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University; Taipei, Taiwan
| | - Yu Yang
- Interdisciplinary Program of Life Science and Medicine, National Tsing Hua University, Hsinchu, Taiwan
| | - Chen-Hsiang Kuan
- Division of Plastic Surgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University; Taipei, Taiwan; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
| | - Ching-Li Tseng
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei, Taiwan
| | - Tzu-Wei Wang
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan.
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2
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Zhang Y, Zhang C, Chen S, Hu J, Shen L, Yu Y. Research Progress Concerning a Novel Intraocular Lens for the Prevention of Posterior Capsular Opacification. Pharmaceutics 2022; 14:pharmaceutics14071343. [PMID: 35890240 PMCID: PMC9318653 DOI: 10.3390/pharmaceutics14071343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/12/2022] [Accepted: 06/23/2022] [Indexed: 11/24/2022] Open
Abstract
Posterior capsular opacification (PCO) is the most common complication resulting from cataract surgery and limits the long-term postoperative visual outcome. Using Nd:YAG laser-assisted posterior capsulotomy for the clinical treatment of symptomatic PCO increases the risks of complications, such as glaucoma, retinal diseases, uveitis, and intraocular lens (IOL) pitting. Therefore, finding how to prevent PCO development is the subject of active investigations. As a replacement organ, the IOL is implanted into the lens capsule after cataract surgery, but it is also associated with the occurrence of PCO. Using IOL as a medium for PCO prophylaxis is a more facile and efficient method that has demonstrated various clinical application prospects. Thus, scientists have conducted a lot of research on new intraocular lens fabrication methods, such as optimizing IOL materials and design, and IOL surface modification (including plasma/ultraviolet/ozone treatment, chemical grafting, drug loading, coating modification, and layer-by-layer self-assembly methods). This paper summarizes the research progress for different types of intraocular lenses prepared by different surface modifications, including anti-biofouling IOLs, enhanced-adhesion IOLs, micro-patterned IOLs, photothermal IOLs, photodynamic IOLs, and drug-loading IOLs. These modified intraocular lenses inhibit PCO development by reducing the residual intraoperative lens epithelial cells or by regulating the cellular behavior of lens epithelial cells. In the future, more works are needed to improve the biosecurity and therapeutic efficacy of these modified IOLs.
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Affiliation(s)
- Yidong Zhang
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China; (Y.Z.); (C.Z.); (S.C.); (J.H.); (L.S.)
| | - Chengshou Zhang
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China; (Y.Z.); (C.Z.); (S.C.); (J.H.); (L.S.)
| | - Silong Chen
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China; (Y.Z.); (C.Z.); (S.C.); (J.H.); (L.S.)
| | - Jianghua Hu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China; (Y.Z.); (C.Z.); (S.C.); (J.H.); (L.S.)
- Jiande Branch, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Lifang Shen
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China; (Y.Z.); (C.Z.); (S.C.); (J.H.); (L.S.)
| | - Yibo Yu
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China; (Y.Z.); (C.Z.); (S.C.); (J.H.); (L.S.)
- Correspondence:
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3
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Jaitli A, Roy J, Chatila A, Liao J, Tang L. Effect of time and temperature-dependent changes of IOL material properties on IOL: Lens capsule interactions. Exp Eye Res 2021; 211:108726. [PMID: 34403680 DOI: 10.1016/j.exer.2021.108726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 08/05/2021] [Accepted: 08/09/2021] [Indexed: 11/15/2022]
Abstract
Posterior Capsule Opacification (PCO) is the most common complication associated with Intraocular Lens (IOL) implantation. Based on the assumption that the interactions between an IOL and the lens capsule (LC) may influence the extent of PCO formation, a new in vitro model was developed to quantify the adhesion force of an IOL to simulated LC using a custom-designed micro-force tester. Using this system, we examined the influence of temperature (room temperature vs. body temperature) and incubation time (0 vs. 24 h) on the adhesion force between IOLs and LCs. The results show that, in line with clinical observations of PCO incidence, the adhesion force increased at body temperature and with increase in incubation time in the following order, Acrylic foldable IOLs > Silicone IOLs > PMMA IOLs. By examining the changes of surface properties as a function of temperature and incubation time, we found that acrylic foldable IOLs showed the largest increase in their hydrophilicity and reported the lowest surface roughness in comparison to other IOL groups. Coincidentally, using a newly established macromolecular dye imaging system to simulate cell migration between IOLs and LC, we observed that the amount of macromolecular dye infiltration between IOLs and LCs was in the following order: PMMA IOLs > Silicone IOLs > Acrylic foldable IOLs. These results support a new potential mechanism that body temperature, incubation time, surface hydrophilicity and smoothness of IOLs greatly contribute to their tight binding to LCs and such tight binding may lead to reduced IOL: LC space, cell infiltration, and thus PCO formation.
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Affiliation(s)
- Arjun Jaitli
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Joyita Roy
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Amjad Chatila
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Jun Liao
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, 76019, USA; Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
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4
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Xiang Y, Jin R, Zhang Y, Li K, Liu G, Song X, Wang Y, Nie Y. Foldable Glistening-Free Acrylic Intraocular Lens Biomaterials with Dual-Side Heterogeneous Surface Modification for Postoperative Endophthalmitis and Posterior Capsule Opacification Prophylaxis. Biomacromolecules 2021; 22:3510-3521. [PMID: 34288655 DOI: 10.1021/acs.biomac.1c00582] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Hydrophobic acrylic intraocular lenses (IOLs) are widely used in cataract treatment for posterior capsule opacification (PCO) prophylaxis. However, undesired glistening and postoperative endophthalmitis are two major potential risks. Hence, a series of poly(2-phenoxyethyl methacrylate-co-2-phenoxyethyl acrylate-co-2-ethylhexyl methacrylate) (PPPE) acrylic IOL materials were synthesized for "glistening-free" optimization. The selected PPPE with 2% 2-ethylhexyl methacrylate showed excellent optical, foldable, and thermomechanical properties. The anterior surface of PPPE was coated with polydopamine followed by gentamycin conjugation (PDA/GS). It inhibited bacterial adhesion by 74% and decreased the biofilm thickness by 87%. In inflammatory mimicking conditions, bacterial proliferation was restrained, with acidic-dependent GS release behavior. The surface of PPPE toward the posterior capsule remained hydrophobic. It was conducive to human lens epithelial cell adhesion, collagen IV and fibronectin adsorption, and the following "sealed sandwich structure" formation. In summary, the PPPE with a dual-side heterogeneous surface displayed good application prospects in postoperative endophthalmitis and PCO prevention.
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Affiliation(s)
- Yang Xiang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Rongrong Jin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Ying Zhang
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Kaijun Li
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Gongyan Liu
- The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Xu Song
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.,NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & Institute of Regulatory Science for Medical Devices & NMPA Research Base of Regulatory Science for Medical Devices, Sichuan University, Chengdu 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Yu Nie
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
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5
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Resveratrol-Loaded Hydrogel Contact Lenses with Antioxidant and Antibiofilm Performance. Pharmaceutics 2021; 13:pharmaceutics13040532. [PMID: 33920327 PMCID: PMC8069945 DOI: 10.3390/pharmaceutics13040532] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/03/2021] [Accepted: 04/06/2021] [Indexed: 01/16/2023] Open
Abstract
Contact lenses (CLs) are prone to biofilm formation, which may cause severe ocular infections. Since the use of antibiotics is associated with resistance concerns, here, two alternative strategies were evaluated to endow CLs with antibiofilm features: copolymerization with the antifouling monomer 2-methacryloyloxyethyl phosphorylcholine (MPC) and loading of the antioxidant resveratrol with known antibacterial activity. MPC has, so far, been used to increase water retention on the CL surface (Proclear® 1 day CLs). Both poly(hydroxyethyl methacrylate) (HEMA) and silicone hydrogels were prepared with MPC covering a wide range of concentrations (from 0 to 101 mM). All hydrogels showed physical properties adequate for CLs and successfully passed the hen’s egg-chorioallantoic membrane (HET-CAM) test. Silicone hydrogels had stronger affinity for resveratrol, with higher loading and a slower release rate. Ex vivo cornea and sclera permeability tests revealed that resveratrol released from the hydrogels readily accumulated in both tissues but did not cross through. The antibiofilm tests against Pseudomonas aeruginosa and Staphylococcus aureus evidenced that, in general, resveratrol decreased biofilm formation, which correlated with its concentration-dependent antibacterial capability. Preferential adsorption of lysozyme, compared to albumin, might also contribute to the antimicrobial activity. In addition, importantly, the loading of resveratrol in the hydrogels preserved the antioxidant activity, even against photodegradation. Overall, the designed hydrogels can host therapeutically relevant amounts of resveratrol to be sustainedly released on the eye, providing antibiofilm and antioxidant performance.
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Xiang Y, Zou M, Zhang Y, Jin R, Nie Y. Drug-loaded and Blue-ray Filtered Hydrogel as a Potential Intraocular Lens for Cataract Treatment. Pharm Nanotechnol 2020; 8:302-312. [PMID: 32167435 DOI: 10.2174/2211738508666200313144112] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/21/2020] [Accepted: 02/25/2020] [Indexed: 02/08/2023]
Abstract
Background:
Indomethacin (IND) is a class of non-steroidal, anti-inflammatory
drugs, which is used to treat various kinds of ocular inflammation, and has been reported to
prevent posterior capsule opacification (PCO) by inhibiting the mitosis and collagen synthesis
of human lens epithelial cells (LECs). In addition, the specific absorption spectrum of indomethacin
shows the effect of absorbing short-wavelength blue-violet light.
Objective:
We prepared an indomethacin-loaded hydrogel as a potential intraocular lens (IOLs)
material to prevent endophthalmitis, PCO and filter harmful blue light.
Methods:
Indomethacin prodrugs (HEMA-IND) (HI) were prepared by esterification of indomethacin
and 2-hydroxyethyl methacrylate (HEMA), and poly (HEMA-co-MAA-co-MMA-co-
HI) (HAMI) hydrogels were prepared by free-radical polymerization of 2-hydroxyethyl methacrylate
(HEMA), methyl methacrylate (MMA), methacrylic acid (MAA) and HI. The physical
and chemical properties of obtained hydrogel were detected, including optical, morphology,
thermomechanical and surface properties, equilibrium water content, drug release behaviors and
cytotoxicity.
Results:
HAMI hydrogels can filter harmful short-wavelength blue light and show other necessary
properties like visible light transparency, glass transition temperatures, mechanical
strength, and biocompatibility for making intraocular lenses. Meanwhile, MAA increases the
hydrophilicity of the hydrogels, resulting in a lower water contact angle and controllable drug
release from the hydrogels.
Conclusion:
In summary, HAMI hydrogels show a great potential as IOL biomaterials that can
maintain the sustained release of indomethacin and filter harmful blue light after cataract surgery.
Lay Summary:
People with cataract surgery can be at high risk of postoperative complications,
such as PCO and postoperative endophthalmitis. Moreover, early IOLs allowed all ultraviolet
(UV) and visible light to pass through retina without restriction, thus to damage the retina and
the retinal pigment epithelium, which may lead to retinopathy and age-related macular degeneration
(AMD). Herein, we sought to design and prepare a kind of IOLs loaded with indomethacin
to mitigate those postoperative complications and filter harmful blue light to improve the
treatment prognosis.
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Affiliation(s)
- Yang Xiang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Mengwei Zou
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Ying Zhang
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| | - Rongrong Jin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yu Nie
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
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7
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Han Y, Tang J, Xia J, Wang R, Qin C, Liu S, Zhao X, Chen H, Lin Q. Anti-Adhesive And Antiproliferative Synergistic Surface Modification Of Intraocular Lens For Reduced Posterior Capsular Opacification. Int J Nanomedicine 2019; 14:9047-9061. [PMID: 31819418 PMCID: PMC6875265 DOI: 10.2147/ijn.s215802] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 10/30/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Posterior capsular opacification (PCO) is the main complication after intraocular lens (IOL) implantation in cataract surgery, which is the result of lens epithelial cell (LEC) adhesion, proliferation and migration on the IOL and at the lens capsule interface. Hydrophilic surface modification, such as surface heparinization, decreases the cell adhesion, which has been commercialized and used clinically. However, clinical long-term observation results show no significant difference between the pristine and heparinized IOLs. METHODS To prevent PCO over the long time span, we modified the IOLs with an antiproliferative drug-loaded hydrophilic coating. The antiproliferative drug doxorubicin (DOX)-incorporated chitosan (CHI) nanoparticle was fabricated by sodium tripolyphosphate (TPP) gelation. Such antiproliferative drug-loaded CHI-TPP-DOX nanoparticles (CTDNP) were used as one of the building blocks to prepare polyelectrolyte multilayer with heparin (HEP) via layer-by-layer assembly, obtaining (HEP/CTDNP)n multilayers. The assembly process was characterized by quartz crystal microbalance with dissipation (QCM-D). The drug release behavior of the coating was investigated by ultra-HPLC (UPLC). In vitro cell experiments were carried out to monitor the effects of multifunctional coatings on cellular adhesion, proliferation and migration. And the intraocular implantation was performed on rabbits to evaluate the in vivo PCO inhibitory effect of such surface-functionalized IOLs. RESULTS The positively charged CTDNP was successfully prepared by ionic gelation. The QCM-D results indicate the successful preparation of the (HEP/CTDNP)n multilayer film. Drug release profiles showed that surface-multifunctionalized IOL had drug-sustained release properties. In vitro cell culture results showed significant inhibition of adhesion, proliferation and migration of LECs after surface modification. The in vivo results showed that the IOLs with multifunctionalized surface can effectively reduce the posterior hyperplasia and Soemmering's ring (SR) formation. CONCLUSION These findings suggested that such multifunctionalized drug-eluting IOLs can effectively reduce the posterior hyperplasia and SR formation when intraocular implantation has a major impact on reducing PCO incidence. Thus they have a great potential in improving patient vision recovery and maintenance.
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Affiliation(s)
- Yuemei Han
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Junmei Tang
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Jiayi Xia
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Rui Wang
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Chen Qin
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Sihao Liu
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Xia Zhao
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou32500, People’s Republic of China
| | - Quankui Lin
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou325027, People’s Republic of China
- Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Sciences, Wenzhou32500, People’s Republic of China
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Qin Y, Zhu Y, Luo F, Chen C, Chen X, Wu M. Killing two birds with one stone: dual blockade of integrin and FGF signaling through targeting syndecan-4 in postoperative capsular opacification. Cell Death Dis 2017; 8:e2920. [PMID: 28703800 PMCID: PMC5550862 DOI: 10.1038/cddis.2017.315] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/03/2017] [Accepted: 06/05/2017] [Indexed: 12/12/2022]
Abstract
The most common complication after cataract surgery is postoperative capsular opacification, which includes anterior capsular opacification (ACO) and posterior capsular opacification (PCO). Increased adhesion of lens epithelial cells (LECs) to the intraocular lens material surface promotes ACO formation, whereas proliferation and migration of LECs to the posterior capsule lead to the development of PCO. Cell adhesion is mainly mediated by the binding of integrin to extracellular matrix proteins, while cell proliferation and migration are regulated by fibroblast growth factor (FGF). Syndecan-4 (SDC-4) is a co-receptor for both integrin and FGF signaling pathways. Therefore, SDC-4 may be an ideal therapeutic target for the prevention and treatment of postoperative capsular opacification. However, how SDC-4 contributes to FGF-mediated proliferation, migration, and integrin-mediated adhesion of LECs is unclear. Here, we found that downregulation of SDC-4 inhibited FGF signaling through the blockade of ERK1/2 and PI3K/Akt/mTOR activation, thus suppressing cell proliferation and migration. In addition, downregulation of SDC-4 suppressed integrin-mediated cell adhesion through inhibiting focal adhesion kinase (FAK) phosphorylation. Moreover, SDC-4 knockout mice exhibited normal lens morphology, but had significantly reduced capsular opacification after injury. Finally, SDC-4 expression level was increased in the anterior capsule LECs of age-related cataract patients. Taken together, we for the first time characterized the key regulatory role of SDC-4 in FGF and integrin signaling in human LECs, and provided the basis for future pharmacological interventions of capsular opacification.
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Affiliation(s)
- Yingyan Qin
- State key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Yi Zhu
- State key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.,Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Furong Luo
- State key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Chuan Chen
- State key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.,Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Xiaoyun Chen
- State key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Mingxing Wu
- State key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
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9
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Huang X, Luo C, Lin L, Zhang L, Li H, Yao K, Xu Z. UV-assisted treatment on hydrophobic acrylic IOLs anterior surface with methacryloyloxyethyl phosphorylcholine: Reducing inflammation and maintaining low posterior capsular opacification properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:1289-1298. [DOI: 10.1016/j.msec.2017.03.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/29/2017] [Accepted: 03/03/2017] [Indexed: 01/05/2023]
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10
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Tan X, Zhan J, Zhu Y, Cao J, Wang L, Liu S, Wang Y, Liu Z, Qin Y, Wu M, Liu Y, Ren L. Improvement of Uveal and Capsular Biocompatibility of Hydrophobic Acrylic Intraocular Lens by Surface Grafting with 2-Methacryloyloxyethyl Phosphorylcholine-Methacrylic Acid Copolymer. Sci Rep 2017; 7:40462. [PMID: 28084469 PMCID: PMC5234006 DOI: 10.1038/srep40462] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 12/06/2016] [Indexed: 11/17/2022] Open
Abstract
Biocompatibility of intraocular lens (IOL) is critical to vision reconstruction after cataract surgery. Foldable hydrophobic acrylic IOL is vulnerable to the adhesion of extracellular matrix proteins and cells, leading to increased incidence of postoperative inflammation and capsule opacification. To increase IOL biocompatibility, we synthesized a hydrophilic copolymer P(MPC-MAA) and grafted the copolymer onto the surface of IOL through air plasma treatment. X-ray photoelectron spectroscopy, atomic force microscopy and static water contact angle were used to characterize chemical changes, topography and hydrophilicity of the IOL surface, respectively. Quartz crystal microbalance with dissipation (QCM-D) showed that P(MPC-MAA) modified IOLs were resistant to protein adsorption. Moreover, P(MPC-MAA) modification inhibited adhesion and proliferation of lens epithelial cells (LECs) in vitro. To analyze uveal and capsular biocompatibility in vivo, we implanted the P(MPC-MAA) modified IOLs into rabbits after phacoemulsification. P(MPC-MAA) modification significantly reduced postoperative inflammation and anterior capsule opacification (ACO), and did not affect posterior capsule opacification (PCO). Collectively, our study suggests that surface modification by P(MPC-MAA) can significantly improve uveal and capsular biocompatibility of hydrophobic acrylic IOL, which could potentially benefit patients with blood-aqueous barrier damage.
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Affiliation(s)
- Xuhua Tan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Jiezhao Zhan
- National Engineering Research Center for Human Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong, 510006, China.,School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China
| | - Yi Zhu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Ji Cao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China.,EYEGOOD Medicals Co., Ltd, Zhuhai, Guangdong, 519085, China
| | - Lin Wang
- National Engineering Research Center for Human Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong, 510006, China.,School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China
| | - Sa Liu
- National Engineering Research Center for Human Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong, 510006, China.,School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China
| | - Yingjun Wang
- National Engineering Research Center for Human Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong, 510006, China.,School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China
| | - Zhenzhen Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Yingyan Qin
- Zhongshan Ophthalmic Center, Sun Yat-sen University 54 South Xianlie Rd, Guangzhou, China
| | - Mingxing Wu
- Department of Cataract, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Yizhi Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510060, China
| | - Li Ren
- National Engineering Research Center for Human Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong, 510006, China.,School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China
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Opacificación capsular posterior en lentes intraoculares hidrofílicos en comparación con lentes intraoculares hidrofóbicos usando imágenes de Scheimpflug. REVISTA MEXICANA DE OFTALMOLOGÍA 2016. [DOI: 10.1016/j.mexoft.2015.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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12
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Lin Q, Xu X, Wang B, Shen C, Tang J, Han Y, Chen H. Hydrated polysaccharide multilayer as an intraocular lens surface coating for biocompatibility improvements. J Mater Chem B 2015; 3:3695-3703. [PMID: 32262844 DOI: 10.1039/c5tb00111k] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A swollen polysaccharide multilayer was coated on an IOL to inhibit LEC adhesion and proliferation, thus decreasing PCO incidence after implantation.
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Affiliation(s)
- Quankui Lin
- School of Ophthalmology & Optometry
- Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- China
| | - Xu Xu
- School of Ophthalmology & Optometry
- Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- China
| | - Bailiang Wang
- School of Ophthalmology & Optometry
- Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- China
| | - Chenghui Shen
- Wenzhou Institute of Biomaterials and Engineering
- Wenzhou
- China
| | - Junmei Tang
- School of Ophthalmology & Optometry
- Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- China
| | - Yuemei Han
- School of Ophthalmology & Optometry
- Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- China
| | - Hao Chen
- School of Ophthalmology & Optometry
- Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- China
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Pintwala R, Postnikoff C, Molladavoodi S, Gorbet M. Coculture with intraocular lens material-activated macrophages induces an inflammatory phenotype in lens epithelial cells. J Biomater Appl 2014; 29:1119-32. [PMID: 25281645 DOI: 10.1177/0885328214552711] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cataracts are the leading cause of blindness worldwide, requiring surgical implantation of an intraocular lens. Despite evidence of leukocyte ingress into the postoperative lens, few studies have investigated the leukocyte response to intraocular lens materials. A novel coculture model was developed to examine macrophage activation by hydrophilic acrylic (poly(2-hydroxyethyl methacrylate)) and hydrophobic acrylic (polymethylmethacrylate) commercial intraocular lens. The human monocytic cell line THP-1 was differentiated into macrophages and cocultured with human lens epithelial cell line (HLE-B3) with or without an intraocular lens for one, two, four, or six days. Using flow cytometry and confocal microscopy, expression of the macrophage activation marker CD54 (intercellular adhesion molecule-1) and production of reactive oxygen species via the fluorogenic probe 2',7'-dichlorodihydrofluorescein diacetate were examined in macrophages. α-Smooth muscle actin, a transdifferentiation marker, was characterized in lens epithelial cells. The poly(2-hydroxyethyl methacrylate) intraocular lens prevented adhesion but induced significant macrophage activation (p < 0.03) versus control (no intraocular lens), while the polymethylmethacrylate intraocular lens enabled adhesion and multinucleated fusion, but induced no significant activation. Coculture with either intraocular lens increased reactive oxygen species production in macrophages after one day (p < 0.03) and increased expression of α-smooth muscle actin in HLE B-3 after six days, although only poly(2-hydroxyethyl methacrylate) induced a significant difference versus control (p < 0.01). Our results imply that-contrary to prior uveal biocompatibility understanding-macrophage adherence is not necessary for a strong inflammatory response to an intraocular lens, with hydrophilic surfaces inducing higher activation than hydrophobic surfaces. These findings provide a new method of inquiry into uveal biocompatibility, specifically through the quantification of cell-surface markers of leukocyte activation.
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Affiliation(s)
- Robert Pintwala
- Faculty of Engineering, Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Cameron Postnikoff
- Faculty of Engineering, Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Sara Molladavoodi
- Faculty of Engineering, Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Maud Gorbet
- Faculty of Engineering, Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada
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14
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Hydrophobic modification of polymethyl methacrylate as intraocular lenses material to improve the cytocompatibility. J Colloid Interface Sci 2014; 431:1-7. [DOI: 10.1016/j.jcis.2014.05.056] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 05/25/2014] [Accepted: 05/27/2014] [Indexed: 11/19/2022]
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15
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Wang B, Lin Q, Shen C, Han Y, Tang J, Chen H. Synthesis of MA POSS–PMMA as an intraocular lens material with high light transmittance and good cytocompatibility. RSC Adv 2014. [DOI: 10.1039/c4ra08060b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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16
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McCanna DJ, Barthod-Malat AV, Gorbet MB. In vitro methods of assessing ocular biocompatibility using THP-1-derived macrophages. Cutan Ocul Toxicol 2014; 34:89-100. [PMID: 24738714 DOI: 10.3109/15569527.2014.908205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Macrophages play an important role in the elimination of infections, the removal of debris and in tissue repair after infection and trauma. In vitro models that assess ocular biomaterials for toxicity typically focus on the effects of these materials on epithelial or fibroblast cells. This investigation evaluated known ocular toxins deposited on model materials for their effects on the viability and activation of macrophages. THP-1-derived macrophages were cultured onto silicone films (used as a base biomaterial) deposited with chemical toxins (benzalkonium chloride (BAK), zinc diethyldithiocarbamate (ZDEC) and lipopolysaccharide (LPS)). Utilizing three fluorescent dyes calcein, ethidium homodimer-1 (EthD-1) and annexin V, the viability of macrophages attached to the biomaterial was determined using confocal microscopy. Propidium iodide (PI) staining and alamarBlue® (resazurin) reduction were used to assess cell death and metabolic activity. CD14, CD16, CD33, CD45, and CD54 expression of adherent macrophages, were also evaluated to detect LPS activation of macrophages using flow cytometry. The sensitivity of this test battery was demonstrated as significant toxicity from treated surfaces with ZDEC (0.001-0.01%), and BAK (0.001%-0.1%) was detected. Also, macrophage activation could be detected by measuring CD54 expression after exposure to adsorbed LPS. These in vitro methods will be helpful in determining the toxicity potential of new ocular biomaterials.
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Affiliation(s)
- David Joseph McCanna
- School of Optometry and Vision Science, Centre for Contact Lens Research, University of Waterloo , Waterloo, Ontario , Canada and
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Huang XD, Li HY, Lin L, Yao K. Reduced Silicone Oil Adherence to Silicone Intraocular Lens by Surface Modification with 2-Methacryloyloxyethyl Phosphoryl-Choline. Curr Eye Res 2012; 38:91-6. [DOI: 10.3109/02713683.2012.704477] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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18
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González-Guijarro JJ, Tamés Haye I, Valdivia Pérez A. [Phacoemulsification and acrylic intraocular lens in uveitis: a comparative study]. ARCHIVOS DE LA SOCIEDAD ESPANOLA DE OFTALMOLOGIA 2012; 87:9-16. [PMID: 22248652 DOI: 10.1016/j.oftal.2011.06.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 03/24/2011] [Accepted: 06/29/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To describe the outcomes of phacoemulsification with the implant of an acrylic intraocular lens (IOL) in cataracts of adult patients with and without uveitis METHODS Descriptive retrospective comparative study of 35 patients (45 eyes) with uveitis (group 1) and 38 (44 eyes) control patients (group 2), who were operated on by the same surgeon, and were homogeneous as regards sex, surgical technique, IOL (hydrophobic or hydrophilic) and follow-up. The pre-surgical characteristics of risk, the difficulties and intra-surgical and postsurgical complications, the date of posterior capsulotomy (PC) and the pre- and post-surgical visual acuity (VA), were analysed. RESULTS In both groups the coaxial phacoemulsification was used in 75% of the eyes, bimanual microincision cataract surgery (MICS) in 20% and micro-coaxial in the rest. The pre-surgical risk factors (P = .002, OR 6.83), the surgical difficulties and complications (P = .001, OR 7.54) and postsurgical complications (P = .069, OR 3.42) were more frequent in the uveitis group. In both 93% and 91% respectively of eyes improved 2 or more lines of VA. After an average follow-up of 4.9 years in both groups, 22.7% and 32% eyes (log-rank P = .357) needed PC. The hydrophilic IOLs needed PC earlier than the hydrophobic ones (log rank P = .001), neither the location nor the uveitis course influenced the PC rate. CONCLUSIONS The consequences because of previous ocular inflammation make cataract surgery in uveitis more difficult, but with postsurgical complications, visual results and need of PC similar to our patients without inflammation.
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