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Xiong X, Jiang H, Liao Y, Du Y, Zhang Y, Wang Z, Zheng M, Du Z. Liposome-trimethyl chitosan nanoparticles codeliver insulin and siVEGF to treat corneal alkali burns by inhibiting ferroptosis. Bioeng Transl Med 2023; 8:e10499. [PMID: 36925675 PMCID: PMC10013822 DOI: 10.1002/btm2.10499] [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: 08/03/2022] [Revised: 01/05/2023] [Accepted: 01/27/2023] [Indexed: 02/11/2023] Open
Abstract
Alkali burns are potentially blinding corneal injuries. Due to the lack of available effective therapies, the prognosis is poor. Thus, effective treatment methods for corneal alkali burns are urgently needed. Codelivery nanoparticles (NPs) with characteristics such as high bioavailability and few side effects have been considered effective therapeutic agents for ocular diseases. In this study, we designed a new combination therapy using liposomes and trimethyl chitosan (TMC) for the codelivery of insulin (INS) and vascular endothelial growth factor small interfering RNA (siVEGF) to treat alkali-burned corneas. We describe the preparation and characterization of siVEGF-TMC-INS-liposome (siVEGF-TIL), drug release characteristics, intraocular tracing, pharmacodynamics, and biosafety. We found that siVEGF-TIL could inhibit oxidative stress, inflammation, and the expression of VEGF in vitro and effectively maintained corneal transparency, accelerated epithelialization, and inhibited corneal neovascularization (CNV) in vivo. Morever, we found that the therapeutic mechanism of siVEGF-TIL is possibly relevant to the inhibition of the ferroptosis signaling pathway by metabolomic analysis. In general, siVEGF-TIL NPs could be a safe and effective therapy for corneal alkali burn.
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Affiliation(s)
- Xiaojing Xiong
- Department of Ophthalmology Second Affiliated Hospital of Chongqing Medical University Chongqing China.,Chongqing Key Laboratory of Ultrasound Molecular Imaging Second Affiliated Hospital of Chongqing Medical University Chongqing China.,State Key Laboratory of Ultrasound in Medicine and Engineering Second Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Huiting Jiang
- Department of Ophthalmology Second Affiliated Hospital of Chongqing Medical University Chongqing China.,Chongqing Key Laboratory of Ultrasound Molecular Imaging Second Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Yukun Liao
- Department of Ophthalmology Second Affiliated Hospital of Chongqing Medical University Chongqing China.,Chongqing Key Laboratory of Ultrasound Molecular Imaging Second Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Yangrui Du
- Department of Ophthalmology Second Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Yu Zhang
- Department of Ophthalmology Second Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Zhigang Wang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging Second Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Minming Zheng
- Department of Ophthalmology Second Affiliated Hospital of Chongqing Medical University Chongqing China
| | - Zhiyu Du
- Department of Ophthalmology Second Affiliated Hospital of Chongqing Medical University Chongqing China
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2
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Shi X, Zhou T, Huang S, Yao Y, Xu P, Hu S, Tu C, Yin W, Gao C, Ye J. An electrospun scaffold functionalized with a ROS-scavenging hydrogel stimulates ocular wound healing. Acta Biomater 2023; 158:266-280. [PMID: 36638943 DOI: 10.1016/j.actbio.2023.01.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 12/18/2022] [Accepted: 01/05/2023] [Indexed: 01/12/2023]
Abstract
Ocular alkali burn is a serious ophthalmic emergency. Highly penetrative alkalis cause strong inflammatory responses leading to persistent epithelial defects, acute corneal perforation and severe scarring, and thereby persistent pain, loss of vision and cicatricial sequelae. Early and effective anti-inflammation management is vital in reducing the severity of injury. In this study, a double network biomaterial was prepared by compounding electrospinning nanofibres of thioketal-containing polyurethane (PUTK) with a reactive oxygen species (ROS)-scavenging hydrogel (RH) fabricated by crosslinking poly(poly(ethylene glycol) methyl ether methacrylate-co-glycidyl methacrylate) with thioketal diamine and 3,3'-dithiobis(propionohydrazide). The developed PUTK/RH patch exhibited good transparency, high tensile strength and increased hydrophilicity. Most importantly, it demonstrated strong antioxidant activity against H2O2 and 2,2-di(4-tert-octylphenyl)-1-picryl-hydrazyl (DPPH). Next, a rat corneal alkali burn model was established, and the PUTK/RH patch was transplanted on the injured cornea. Reduced inflammatory cell infiltration was revealed by confocal microscopy, and lower expression levels of genes relative to inflammation, vascularization and scarring were identified by qRT-PCR and western blot. Fluorescein sodium dyeing, hematoxylin and eosin (H&E) staining and immunohistochemical staining confirmed that the PUTK/RH patch could accelerate corneal wound healing by inhibiting inflammation, promoting epithelial regeneration and decreasing scar formation. STATEMENT OF SIGNIFICANCE: Ocular alkali burn is a serious ophthalmic emergency, characterized with persistent inflammation and irreversible vision loss. Oxidative stress is the main pathological process at the acute inflammatory stage, during which combined use of glucocorticoids and amniotic membrane transplantation is the most widely accepted treatment. In this study, we fabricated a polyurethane electrospun nanofiber membrane functionalized with a ROS-scavenging hydrogel. This composite patch could be a promising amniotic membrane substitute, possessing with a transparent appearance, elasticity and anti-inflammation effect. It could be easily transplanted onto the alkali-burned corneas, resulting in a significant inhibition of stromal inflammation and accelerating the recovery of corneal transparency. The conception of ROS-scavenging wound patch may offer a new way for ocular alkali burn.
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Affiliation(s)
- Xin Shi
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou 310009, China
| | - Tong Zhou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Shenyu Huang
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou 310009, China
| | - Yuejun Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Peifang Xu
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou 310009, China
| | - Shaodan Hu
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou 310009, China
| | - Chenxi Tu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wei Yin
- Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Juan Ye
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou 310009, China.
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3
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Retracted: An Immunohistochemical Study of the Increase in Antioxidant Capacity of Corneal Epithelial Cells by Molecular Hydrogen, Leading to the Suppression of Alkali-Induced Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9831406. [PMID: 35585882 PMCID: PMC9110204 DOI: 10.1155/2022/9831406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 11/18/2022]
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4
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Retracted: Molecular Hydrogen Effectively Heals Alkali-Injured Cornea via Suppression of Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9846572. [PMID: 35585887 PMCID: PMC9110205 DOI: 10.1155/2022/9846572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 11/18/2022]
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5
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Wang K, Jiang L, Zhong Y, Zhang Y, Yin Q, Li S, Zhang X, Han H, Yao K. Ferrostatin-1-loaded liposome for treatment of corneal alkali burn via targeting ferroptosis. Bioeng Transl Med 2022; 7:e10276. [PMID: 35600640 PMCID: PMC9115688 DOI: 10.1002/btm2.10276] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/12/2021] [Accepted: 11/23/2021] [Indexed: 12/23/2022] Open
Abstract
Alkali burn is a potentially blinding corneal injury. During the progression of alkali burn-induced injury, overwhelmed oxidative stress in the cornea triggers cell damage, including oxidative changes in cellular macromolecules and lipid peroxidation in membranes, leading to impaired corneal transparency, decreased vision, or even blindness. In this study, we identified that ferroptosis, a type of lipid peroxidation-dependent cell death, mediated alkali burn-induced corneal injury. Ferroptosis-targeting therapy protected the cornea from cell damage and neovascularization. However, the specific ferroptosis inhibitor ferrostatin-1 (Fer-1) is hydrophobic and cannot be directly applied in the clinic. Therefore, we developed Fer-1-loaded liposomes (Fer-1-NPs) to improve the bioavailability of Fer-1. Our study demonstrated that Fer-1-NPs exerted remarkable curative effects regarding corneal opacity and neovascularization in vivo. The efficacy was comparable to that of dexamethasone, but without appreciable side effects. The significant suppression of ferroptosis (induced by lipid peroxidation and mitochondria disruption), inflammation, and neovascularization might be the mechanisms underlying the therapeutic effect of Fer-1-NPs. Moreover, the Fer-1-NPs treatment showed no signs of cytotoxicity, hematologic toxicity, or visceral organ damage, which further confirmed the biocompatibility. Overall, Fer-1-NPs provide a new prospect for safe and effective therapy for corneal alkali burn.
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Affiliation(s)
- Kai Wang
- Eye Center, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Li Jiang
- Department of Biochemistry and Molecular Biology, School of Basic Medical SciencesHangzhou Normal UniversityHangzhouChina
| | - Yueyang Zhong
- Eye Center, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Yin Zhang
- Eye Center, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Qichuan Yin
- Eye Center, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Su Li
- Eye Center, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Xiaobo Zhang
- Eye Center, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Haijie Han
- Eye Center, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Ke Yao
- Eye Center, The Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouChina
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6
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Abstract
Molecular hydrogen exerts biological effects on nearly all organs. It has anti-oxidative, anti-inflammatory, and anti-aging effects and contributes to the regulation of autophagy and cell death. As the primary organ for gas exchange, the lungs are constantly exposed to various harmful environmental irritants. Short- or long-term exposure to these harmful substances often results in lung injury, causing respiratory and lung diseases. Acute and chronic respiratory diseases have high rates of morbidity and mortality and have become a major public health concern worldwide. For example, coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a global pandemic. An increasing number of studies have revealed that hydrogen may protect the lungs from diverse diseases, including acute lung injury, chronic obstructive pulmonary disease, asthma, lung cancer, pulmonary arterial hypertension, and pulmonary fibrosis. In this review, we highlight the multiple functions of hydrogen and the mechanisms underlying its protective effects in various lung diseases, with a focus on its roles in disease pathogenesis and clinical significance.
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Affiliation(s)
- Zhiling Fu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Jin Zhang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
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7
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Sajjad F, Yan YJ, Margetić D, Chen ZL. Synthesis and in vitro PDT evaluation of red emission polymer dots (R-CPDs) and pyropheophorbide-α conjugates. Sci Rep 2021; 11:10013. [PMID: 33976236 PMCID: PMC8113465 DOI: 10.1038/s41598-021-89081-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 04/19/2021] [Indexed: 11/09/2022] Open
Abstract
Carbon based polymer dots have piqued attention of researchers because of excellent biocompatibility, and good solubility. Most of the p-dots are able to generate ROS which is effective for photodynamic therapy for the treatment of cancer while some photosensitizers such as porphyrins possess some drawbacks such as hydrophobicity, and dark toxicity. Therefore in this study we conjugated red emission carbon based polymer with pyropheophorbide-α through amide condensation and π-π stacking. One pot synthesis of the conjugate was successfully achieved. Their photophysiological properties were studied and structures were characterized by FT-IR, TEM and 1HNMR. pH- sensitivity of the conjugates was confirmed using fluorescence and UV-vis spectroscopy. Photo toxicity and dark toxicity of the prepared conjugates were evaluated in human esophageal cancer cell line (Eca-109). Hemocompatibility of the synthesized conjugates was evaluated and proved that the conjugates are safe to use for the treatment of tumor. Our results showed the PS doped p-dots had less dark toxicity and increased light toxicity as well as ROS generation was high as compared to precursor drug. Therefore, incorporation of p-dots to porphyrin improved biocompatibility and enhanced the photodynamic effect.
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Affiliation(s)
- Faiza Sajjad
- Department of Pharmaceutical Science & Technology, College of Chemistry and Biology, DongHua University, Shanghai, 201620, China
| | - Yi-Jia Yan
- Shanghai Xianhui Pharmaceutical Co., Ltd, Shanghai, 200433, China.
| | - Davor Margetić
- Division of Organic Chemistry and Biochemistry, RuđerBošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia.
| | - Zhi-Long Chen
- Department of Pharmaceutical Science & Technology, College of Chemistry and Biology, DongHua University, Shanghai, 201620, China.
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8
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Cejka C, Kossl J, Hermankova B, Holan V, Kubinova S, Zhang JH, Cejkova J. Retraction Note: Therapeutic effect of molecular hydrogen in corneal UVB-induced oxidative stress and corneal photodamage. Sci Rep 2021; 11:9257. [PMID: 33893385 PMCID: PMC8065168 DOI: 10.1038/s41598-021-89085-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Cestmir Cejka
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220, Prague 4, Czech Republic
| | - Jan Kossl
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220, Prague 4, Czech Republic.,Faculty of Natural Science, Charles University, Vinicna 7, 12843, Prague 2, Czech Republic
| | - Barbora Hermankova
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220, Prague 4, Czech Republic.,Faculty of Natural Science, Charles University, Vinicna 7, 12843, Prague 2, Czech Republic
| | - Vladimir Holan
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220, Prague 4, Czech Republic.,Faculty of Natural Science, Charles University, Vinicna 7, 12843, Prague 2, Czech Republic
| | - Sarka Kubinova
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220, Prague 4, Czech Republic
| | - John H Zhang
- Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA
| | - Jitka Cejkova
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220, Prague 4, Czech Republic.
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