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Yang J, Liu B, Wang Q, Yan H, Li G, Wang X, Shang Z, Ou T, Chen W. Carboxylated mesoporous silica nanoparticle-nucleic acid chimera conjugate-assisted delivery of siRNA and doxorubicin effectively treat drug-resistant bladder cancer. Biomed Pharmacother 2024; 178:117185. [PMID: 39053429 DOI: 10.1016/j.biopha.2024.117185] [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: 05/22/2024] [Revised: 07/16/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024] Open
Abstract
Chemotherapy is the main treatment for bladder cancer, but drug resistance and side effects limit its application and therapeutic effect. Herein, we constructed doxorubicin (DOX)/COOH-mesoporous silica nanoparticle/polyethylenimine (PEI)/nucleic acid chimeras (DOX/MSN/Chimeras) to reduce the toxicity of chemotherapy drugs and the resistance of bladder cancer cells. Transmission electron microscopy showed that PEI was coated on the DOX/MSN/BSA nanoparticles with a diameter of about 150 nm. DOX/MSN/PEI could control DOX release for over 48 h, and the sudden release rate was significantly lower than DOX/MSN. Immunohistochemical results showed that DOX/MSN/Chimera specifically bound to bladder cancer cells, and markedly inhibited PI3K expression and proliferation of DOX-resistant bladder cancer cells. DOX/MSN/Chimera promoted the apoptosis of drug-resistant bladder cancer cells, which was superior to DOX/MSN/Aptamer or DOX/MSN. We further carried out animal experiments and found that DOX/MSN/Chimera could reduce the volume of transplanted tumors in vivo. Compared with DOX/MSN/Aptamer group, the proliferation rate was significantly decreased and the proportion of apoptotic cells was highly increased. Through the histological observation of kidneys and lungs, we believed that DOX/MSN/Chimera can effectively reduce the damage of chemotherapy drugs to normal tissues. In conclusion, we constructed a COOH-MSN/nucleic acid chimera conjugate for the targeted delivery of siRNA and anti-cancer drugs. Our study provides a new method for personalized and targeted treatment of drug-resistant bladder cancer.
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Affiliation(s)
- Jintao Yang
- Department of Urology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Biao Liu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Qi Wang
- Department of Urology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Hao Yan
- Department of Urology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Guangping Li
- Department of Urology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Xu Wang
- Department of Urology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Zhenhua Shang
- Department of Urology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Tongwen Ou
- Department of Urology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
| | - Wen Chen
- Department of Pathology, The 8th Medical Center, Chinese PLA General Hospital, Beijing 100091, China.
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Wang D, Chen X, Chen S, Wang H, Yang J, He J, Liu X, Zhao Y, Zhang J. Enzyme-activated binary assembly for targeted, controlled delivery of anti-liver cancer compounds. Carbohydr Res 2024; 544:109229. [PMID: 39154417 DOI: 10.1016/j.carres.2024.109229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/28/2024] [Accepted: 08/05/2024] [Indexed: 08/20/2024]
Abstract
Liver cancer is the third leading cause of cancer deaths globally. The use of Hydroxycamptothecin (HCPT) as a first-line chemotherapeutic agent for liver, lung, and gastric cancers is often hampered by its low activity, limited targeting, and poor water solubility. This results in a low accumulation of HCPT in tumor cells, as well as the inability to maintain continuous treatment. Consequently, there is an urgent need to develop an accessory method that can enhance the therapeutic efficacy of HCPT while exhibiting good biocompatibility and targeted delivery ability. To address this critical issue, an enzyme-triggered supramolecular nanocarrier, refer as SCD/LCC SNCs, has been successfully developed, leveraging the aggregation of the negatively charged sulfate-modified β-CDs and positively charged lauroylcholine chloride (LCC). This nanocarrier demonstrates acetylcholinesterase (LCC) triggered decomposition behavior, making it a promising drug carrier for HCPT. The cellular assays conducted have demonstrated that HCPT loaded into these SCD/LCC SNCs exhibit reduced cytotoxicity towards normal cells while maintaining robust tumor inhibitory activity and inducing apoptosis. Therefore, this study offers a promising strategy for the effective use of HCPT in the treatment of liver cancer.
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Affiliation(s)
- Dandan Wang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Xiangyu Chen
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Shuai Chen
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Hongxia Wang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Jianmei Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Junnan He
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Xiaoqing Liu
- Shenzhen Kewode Technology Co., Ltd, Shenzhen, 518028, People's Republic of China
| | - Yan Zhao
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, People's Republic of China.
| | - Jin Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, People's Republic of China.
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Song J, Meng H, Deng G, Lin H. Sustainable Release Selenium Laden with SiO 2 Restoring Peripheral Nerve Injury via Modulating PI3K/AKT Pathway Signaling Pathway. Int J Nanomedicine 2024; 19:7851-7870. [PMID: 39105098 PMCID: PMC11299799 DOI: 10.2147/ijn.s460397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 07/23/2024] [Indexed: 08/07/2024] Open
Abstract
Background Inhibiting ROS overproduction is considered a very effective strategy for the treatment of peripheral nerve injuries, and Se has a remarkable antioxidant effect; however, since the difference between the effective concentration of Se and the toxic dose is not large, we synthesized a nanomaterial that can release Se slowly so that it can be used more effectively. Methods Se@SiO2 NPs were synthesized using a mixture of Cu2-x Se nanocrystals, and the mechanism of action of Se@SiO2 NPs was initially explored by performing sequencing, immunofluorescence staining and Western blotting of cellular experiments. The mechanism of action of Se@SiO2 NPs was further determined by performing behavioral assays after animal experiments and by sampling the material for histological staining, immunofluorescence staining, and ELISA. The effects, mechanisms and biocompatibility of Se@SiO2 NPs for peripheral nerve regeneration were determined. Results Porous Se@SiO2 was successfully synthesized, had good particle properties, and could release Se slowly. CCK-8 experiments revealed that the optimal experimental doses were 100 μM H2O2 and 200 μg/mL Se@SiO2, and RNA-seq revealed that porous Se@SiO2 was associated with cell proliferation, apoptosis, and the PI3K/AKT pathway. WB showed that porous Se@SiO2 could increase the expression of cell proliferation antigens (PCNA and S100) and antiapoptotic proteins (Bcl-2), decrease the expression of proapoptotic proteins (Bax), and increase the expression of antioxidative stress proteins (Nrf2, HO-1, and SOD2). EdU cell proliferation and ROS fluorescence assays showed that porous Se@SiO2 promoted cell proliferation and reduced ROS levels. The therapeutic effect of LY294002 (a PI3K/AKT pathway inhibitor) was decreased significantly and its effect was lost when it was added simultaneously with porous Se@SiO2. Animal experiments revealed that the regenerated nerve fiber density, myelin thickness, axon area, gastrocnemius muscle wet-to-weight ratio, myofiber area, sciatic nerve function index (SFI), CMAP, apoptotic cell ratio, and levels of antioxidative stress proteins and anti-inflammatory factors were increased following the administration of porous Se@SiO2. The levels of oxidative stress proteins and anti-inflammatory factors were significantly greater in the Se@SiO2 group than in the PNI group, and the effect of LY294002 was decreased significantly and was lost when it was added simultaneously with porous Se@SiO2. Conclusion Se@SiO2 NPs are promising, economical and effective Se-releasing nanomaterials that can effectively reduce ROS production, inhibit apoptosis and promote cell proliferation after nerve injury via the PI3K/AKT pathway, ultimately accelerating nerve regeneration. These findings could be used to design new, promising drugs for the treatment of peripheral nerve injury.
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Affiliation(s)
- Jianguo Song
- Trauma Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, People's Republic of China
| | - Huanliang Meng
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, People's Republic of China
| | - Guoying Deng
- Trauma Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, People's Republic of China
| | - Haodong Lin
- Trauma Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, People's Republic of China
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Sanyal S, Ravula V. Mitigation of pesticide-mediated ocular toxicity via nanotechnology-based contact lenses: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:46602-46624. [PMID: 37542697 DOI: 10.1007/s11356-023-28904-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 07/17/2023] [Indexed: 08/07/2023]
Abstract
The xenobiotic stress exerted by pesticides leads to the deterioration of human and animal health including ocular health. Acute or prolonged exposure to these agricultural toxicants has been implicated in a number of pathological conditions of the eye such as irritation, epiphora or hyper-lacrimation, abrasions on the ocular surface, and decreased visual acuity. The issue is compounded by the fact that tissues of the eye absorb pesticides faster than other organs of the body and are more susceptible to damage as well. However, there is a lacuna in our knowledge regarding the ways by which pesticide exposure-mediated ocular insult might be counteracted. Topical instillation of drugs known to combat the pesticide induced toxicity has been explored to mitigate the detrimental impact of pesticide exposure. However, topical eye drop solutions exhibit very low bioavailability and limited drug residence duration in the tear film decreasing their efficacy. Contact lenses have been explored in this respect to increase bioavailability of ocular drugs, while nanoparticles have lately been utilized to increase drug bioavailability and increase drug residence duration in different tissues. The current review focuses on drug delivery and futuristic aspects of corneal protection from ocular toxicity using contact lenses.
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Affiliation(s)
- Shalini Sanyal
- Laboratory of Self Assembled Biomaterials and Translational Science, Institute for Stem Cell Science and Regenerative Medicine (DBT-inStem), GKVK Post, Bellary Road, Bengaluru, 560065, Karnataka, India.
| | - Venkatesh Ravula
- Laboratory of Self Assembled Biomaterials and Translational Science, Institute for Stem Cell Science and Regenerative Medicine (DBT-inStem), GKVK Post, Bellary Road, Bengaluru, 560065, Karnataka, India
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Shean R, Yu N, Guntipally S, Nguyen V, He X, Duan S, Gokoffski K, Zhu Y, Xu B. Advances and Challenges in Wearable Glaucoma Diagnostics and Therapeutics. Bioengineering (Basel) 2024; 11:138. [PMID: 38391624 PMCID: PMC10886103 DOI: 10.3390/bioengineering11020138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
Glaucoma is a leading cause of irreversible blindness, and early detection and treatment are crucial for preventing vision loss. This review aims to provide an overview of current diagnostic and treatment standards, recent medical and technological advances, and current challenges and future outlook for wearable glaucoma diagnostics and therapeutics. Conventional diagnostic techniques, including the rebound tonometer and Goldmann Applanation Tonometer, provide reliable intraocular pressure (IOP) measurement data at single-interval visits. The Sensimed Triggerfish and other emerging contact lenses provide continuous IOP tracking, which can improve diagnostic IOP monitoring for glaucoma. Conventional therapeutic techniques include eye drops and laser therapies, while emerging drug-eluting contact lenses can solve patient noncompliance with eye medications. Theranostic platforms combine diagnostic and therapeutic capabilities into a single device. Advantages of these platforms include real-time monitoring and personalized medication dosing. While there are many challenges to the development of wearable glaucoma diagnostics and therapeutics, wearable technologies hold great potential for enhancing glaucoma management by providing continuous monitoring, improving medication adherence, and reducing the disease burden on patients and healthcare systems. Further research and development of these technologies will be essential to optimizing patient outcomes.
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Affiliation(s)
- Ryan Shean
- Keck School of Medicine, University of Southern California, 1975 Zonal Avenue, Los Angeles, CA 90033, USA
| | - Ning Yu
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Sourish Guntipally
- Terasaki Institute for Biomedical Innovation, 21100 Erwin Street, Los Angeles, CA 90064, USA
| | - Van Nguyen
- Roski Eye Institute, Keck School of Medicine, University of Southern California, 1450 San Pablo Street, Los Angeles, CA 90033, USA
| | - Ximin He
- Department of Materials Science and Engineering, University of California, 410 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Sidi Duan
- Department of Materials Science and Engineering, University of California, 410 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Kimberly Gokoffski
- Roski Eye Institute, Keck School of Medicine, University of Southern California, 1450 San Pablo Street, Los Angeles, CA 90033, USA
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, 21100 Erwin Street, Los Angeles, CA 90064, USA
| | - Benjamin Xu
- Roski Eye Institute, Keck School of Medicine, University of Southern California, 1450 San Pablo Street, Los Angeles, CA 90033, USA
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Kim JR, Kim SY, Kang H, Kim DI, Yoo HJ, Han SM, Lu P, Moon GD, Hyun DC. Contact Lens with pH Sensitivity for On-Demand Drug Release in Wearing Situation. ACS APPLIED BIO MATERIALS 2023; 6:5372-5384. [PMID: 37967413 DOI: 10.1021/acsabm.3c00637] [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] [Indexed: 11/17/2023]
Abstract
Drug-releasing contact lenses are emerging therapeutic systems for treating ocular diseases. However, their applicability is limited by the burst release of drugs during lens wear and premature drug leakage during packaging, rendering the precise control of release duration or dose difficult. Here, we introduce a pH-sensitive contact lens exhibiting on-demand drug release only during lens wear and negligible premature drug leakage during packaging and transportation, which is accomplished by incorporating drug-loaded mesoporous silica nanoparticles (MSNs) coated with a pH-sensitive polymer into the contact lens. The compositionally optimized pH-sensitive polymer has a lower critical solution temperature (LCST) at >45 °C at pH 7.4, whereas its LCST decreases to <35 °C under acidic conditions (pH ∼ 6.5). Consequently, the MSN-incorporated contact lens sustainably releases the loaded drugs only in the acidic state at 35 °C, which corresponds to lens-wear conditions, through the MSN pores that open because of the shrinkage of polymer chains. Conversely, negligible drug leakage is observed from the contact lens under low-temperature or neutral-pH conditions corresponding to packaging and transportation. Furthermore, compared with the plain contact lens, the pH-sensitive contact lens exhibits good biocompatibility and unchanged bulk characteristics, such as optical (transmittance in the visible-light region), mechanical (elastic modulus and tensile strength), and physical (surface roughness, oxygen permeability, and water content) properties. These findings suggest that the pH-sensitive contact lens can be potentially applied in ocular disease treatment.
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Affiliation(s)
- Jong Ryeol Kim
- Department of Polymer Science and Engineering, Polymeric Nano-Materials Laboratory, Kyungpook National University, Daegu 41566, South Korea
| | - So Young Kim
- Department of Polymer Science and Engineering, Polymeric Nano-Materials Laboratory, Kyungpook National University, Daegu 41566, South Korea
| | - Hosu Kang
- Department of Polymer Science and Engineering, Polymeric Nano-Materials Laboratory, Kyungpook National University, Daegu 41566, South Korea
| | - Da In Kim
- Department of Polymer Science and Engineering, Polymeric Nano-Materials Laboratory, Kyungpook National University, Daegu 41566, South Korea
| | - Hye Jin Yoo
- Department of Polymer Science and Engineering, Polymeric Nano-Materials Laboratory, Kyungpook National University, Daegu 41566, South Korea
| | - Sung Mi Han
- Optical Convergence Technology Center, Daegu Catholic University, Gyeongsan-si, Gyeongbuk 38430, Korea
| | - Ping Lu
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Geon Dae Moon
- Dongnam Regional Division, Korea Institute of Industrial Technology, Busan 46938, Korea
| | - Dong Choon Hyun
- Department of Polymer Science and Engineering, Polymeric Nano-Materials Laboratory, Kyungpook National University, Daegu 41566, South Korea
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Baghban R, Talebnejad MR, Meshksar A, Heydari M, Khalili MR. Recent advancements in nanomaterial-laden contact lenses for diagnosis and treatment of glaucoma, review and update. J Nanobiotechnology 2023; 21:402. [PMID: 37919748 PMCID: PMC10621182 DOI: 10.1186/s12951-023-02166-w] [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: 08/12/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023] Open
Abstract
Despite the existence of numerous eye drops in the market, most of them are not sufficiently effective because of quick clearance and the barriers within the eye. To increase the delivery of the drugs to the eye, various new formulations have been explored in recent decades. These formulations aim to enhance drug retention and penetration, while enabling sustained drug release over extended periods. One such innovative approach is the utilization of contact lenses, which were originally designed for cosmetic purposes and vision correction. Contact lenses have appeared as a promising formulation for ocular drug delivery, as they can increase the bioavailability of drugs in the eye and diminish unwanted side effects. They are specifically appropriate for treating chronic eye conditions, making them an area of interest for researchers in the field of ophthalmology. This review outlines the promising potential of nanomaterial-laden contact lenses for diagnosis and treatment of glaucoma. It classifies therapeutic approaches based on nanomaterial type, summarizes diagnostic advances, discusses improvement of contact lenses properties, covers marketing perspectives, and acknowledges the challenges of these innovative contact lenses for glaucoma management.
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Affiliation(s)
- Roghayyeh Baghban
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Talebnejad
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Aidin Meshksar
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mojtaba Heydari
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Khalili
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Wu KY, Brister D, Bélanger P, Tran SD. Exploring the Potential of Nanoporous Materials for Advancing Ophthalmic Treatments. Int J Mol Sci 2023; 24:15599. [PMID: 37958583 PMCID: PMC10650608 DOI: 10.3390/ijms242115599] [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: 09/28/2023] [Revised: 10/23/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
The landscape of ophthalmology is undergoing significant transformations, driven by technological advancements and innovations in materials science. One of the advancements in this evolution is the application of nanoporous materials, endowed with unique physicochemical properties ideal for a variety of ophthalmological applications. Characterized by their high surface area, tunable porosity, and functional versatility, these materials have the potential to improve drug delivery systems and ocular devices. This review, anchored by a comprehensive literature focusing on studies published within the last five years, examines the applications of nanoporous materials in ocular drug delivery systems (DDS), contact lenses, and intraocular lenses. By consolidating the most current research, this review aims to serve as a resource for clinicians, researchers, and material scientists engaged in the rapidly evolving field of ophthalmology.
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Affiliation(s)
- Kevin Y. Wu
- Department of Surgery—Division of Ophthalmology, University of Sherbrooke, Sherbrooke, QC J1G 2E8, Canada; (K.Y.W.)
| | - Danielle Brister
- College of Public Health, National Taiwan University (NTU), Taipei 106319, Taiwan
| | - Paul Bélanger
- Department of Surgery—Division of Ophthalmology, University of Sherbrooke, Sherbrooke, QC J1G 2E8, Canada; (K.Y.W.)
| | - Simon D. Tran
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC H3A 1G1, Canada
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Yuan W, Zhao F, Liu X, Xu J. Development of corneal contact lens materials and current clinical application of contact lenses: A review. Biointerphases 2023; 18:050801. [PMID: 37756594 DOI: 10.1116/6.0002618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
Unlike conventional glasses, corneal contact lenses (CLs) can directly contact the surface of the tear film through the application of biopolymer materials, to achieve therapeutic and cosmetic purposes. Since the advent of polymethylmethacrylate, a material that has gained widespread use and attention, statistically, there are now more than 150 × 106 people around the world who wear corneal contact lenses. However, the associated complications caused by the interaction of contact lenses with the ocular surface, tear film, endogenous and environmental microorganisms, and components of the solution affect nearly one-third of the wearer population. The application of corneal contact lenses in correcting vision and myopia control has been widely recognized. With the development of related materials, corneal contact lenses are applied to the treatment of ocular surface diseases, including corneal bandage lenses, drug-loaded corneal contact lenses, biosensors, and other new products, while minimizing the side effects associated with CL wear. This paper summarized the development history and material properties of CLs, focused on the current main clinical applications and mechanisms, as well as clarified the possible complications in wearing therapeutic contact lenses and the direction for improvement in the future.
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Affiliation(s)
- Weichen Yuan
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110005, China
| | - Fangkun Zhao
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110005, China
| | - Xiaoyu Liu
- Department of Ophthalmology, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian 116033, China
| | - Jun Xu
- Department of Ophthalmology, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian 116033, China
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Lai CF, Shiau FJ. Hydrogel Contact Lenses Embedded with Amine-Functionalized Large-Pore Mesoporous Silica Nanoparticles with Extended Hyaluronic Acid Release. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2441. [PMID: 37686949 PMCID: PMC10490223 DOI: 10.3390/nano13172441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 08/23/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023]
Abstract
Contact lenses (CLs) have emerged as an effective method for delivering ophthalmic drugs. In this research, we designed hydrogel CLs capable of extended release, utilizing large-pore mesoporous silica nanoparticles (LPMSNs) to deliver hyaluronic acid (HA) for treating dry eye syndrome. LPMSNs were functionalized with amine groups (LPMSN-amine) to enhance HA loading and release capacity. In vitro release studies demonstrated that LPMSN-amine CLs exhibited superior slower HA release than LPMSN-siloxane and standard CLs. Within 120 h, the cumulative amount of HA released from LPMSN-amine CLs reached approximately 275.58 µg, marking a 12.6-fold improvement compared to standard CLs, when loaded from 0.1 wt% HA solutions. Furthermore, LPMSN-amine CLs effectively maintained moisture, mitigating ocular surface dehydration, making them a promising solution for dry eye management. This study successfully developed LPMSN-amine CLs for extended HA release, identifying the optimal functional groups and loading conditions to achieve sustained release.
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Affiliation(s)
- Chun-Feng Lai
- Department of Photonics, Feng Chia University, Taichung 407, Taiwan
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