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Mulkutkar M, Damani M, Sawarkar S. Polymeric microneedles for the eye: An overview of advances and ocular applications for minimally invasive drug delivery. Eur J Pharm Biopharm 2024; 197:114209. [PMID: 38336234 DOI: 10.1016/j.ejpb.2024.114209] [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: 10/08/2023] [Revised: 01/29/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
Ocular drug delivery is challenging due to the presence of tissue barriers and clearance mechanisms. Most widely used topical formulations need frequent application because of poor permeability, short retention, and low bioavailability. Invasive intraocular injections and implants that deliver drugs at the target site are associated with infections, inflammation, and even vision loss post-use. These gaps can be addressed by a delivery platform that can efficiently deliver drug with minimal tissue damage. Microneedles were introduced as a delivery platform for overcoming dermal barriers with minimal tissue damage. After the successful clinical transition of microneedles in the transdermal drug delivery, they are now being extensively studied for ocular applications. The attributes of minimally invasive application and the capability to deliver a wide range of therapeutics make microneedles an attractive candidate for ocular drug delivery. The current manuscript provides a detailed overview of the recent advancements in the field of microneedles for ocular use. This paper reviews research focusing on polymeric microneedles and their pharmaceutical and biopharmaceutical properties. A brief discussion about their clinical translation and regulatory concerns is also covered. The multitude of research articles supports the fact that microneedles are a potential, minimally invasive drug delivery platform for ophthalmic use.
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Affiliation(s)
- Madhura Mulkutkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Mumbai, India
| | - Mansi Damani
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Mumbai, India
| | - Sujata Sawarkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Mumbai, India.
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Liu Y, Zhu Q, Jiang P, Yang Y, Wang M, Liang H, Peng Q, Zhang Q. Bibliometric and visualized analysis of DME from 2012 to 2022. Medicine (Baltimore) 2024; 103:e37347. [PMID: 38552080 PMCID: PMC10977560 DOI: 10.1097/md.0000000000037347] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/02/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Diabetic macular edema (DME) is the main cause of irreversible vision loss in patients with diabetes mellitus (DM), resulting in a certain burden to patients and society. With the increasing incidence of DME, more and more researchers are focusing on it. METHODS The papers related to DME between 2012 and 2022 from the Web of Science core Collection were searched in this study. Based on CiteSpace and VOS viewer, these publications were analyzed in terms of spatiotemporal distribution, author distribution, subject classification, topic distribution, and citations. RESULTS A total of 5165 publications on DME were included. The results showed that the research on DME is on a steady growth trend. The country with the highest number of published documents was the US. Wong Tien Yin from Tsinghua University was the author with the most published articles. The journal of Retina, the Journal of Retinal and Vitreous Diseases had a large number of publications. The article "Mechanisms of macular edema: Beyond the surface" was the highly cited literature and "Aflibercept, bevacizumab, or ranibizumab for diabetic macular edema" had the highest co-citation frequency. The treatment, diagnosis, pathogenesis, as well as etiology and epidemiological investigation of DME, have been the current research direction. Deep learning has been widely used in the medical field for its strong feature representation ability. CONCLUSIONS The study revealed the important authoritative literature, journals, institutions, scholars, countries, research hotspots, and development trends in in the field of DME. This indicates that communication and cooperation between disciplines, universities, and countries are crucial. It can advance research in DME and even ophthalmology.
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Affiliation(s)
- Yi Liu
- Department of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Qiuyan Zhu
- Clinical Laboratory Department, Longgang Sixth People’s Hospital, Shenzhen, China
| | - Pengfei Jiang
- Ophthalmology Department, Quzhou Hospital of Zhejiang Medical and Health Group, Quzhou, China
| | - Yang Yang
- Department of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Mingyun Wang
- Department of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Hao Liang
- Department of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Qinghua Peng
- Department of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Qiuyan Zhang
- Department of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
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Ahmed T, Islam MN, Monalisa R, Ehsan F, Huang SW. Polysaccharides polymers for glaucoma treatment-a review. Eur J Ophthalmol 2024; 34:338-356. [PMID: 37231538 DOI: 10.1177/11206721231178057] [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: 05/27/2023]
Abstract
One of the major challenges in preventing glaucoma progression is patient compliance with medication regimens. Since conventional ophthalmic dosage forms have numerous limitations, researchers have been intensively working on developing polymers-based delivery systems for glaucoma drugs. Specifically, research and development efforts have increased using polysaccharide polymers such as sodium alginate, cellulose, β-cyclodextrin, hyaluronic acid, chitosan, pectin, gellan gum, galactomannans for sustained release to the eye to overcome treatment challenges, showing promise in improving drug release and delivery, patient experience, and treatment compliance. In the recent past, multiple research groups have successfully designed sustained drug delivery systems, promoting the efficacy as well as the feasibility of glaucoma drugs with single/combinations of polysaccharides to eliminate the drawbacks associated with the glaucoma treatment. Naturally available polysaccharides, when used as drug vehicles can increase the retention time of eye drops on the ocular surface, leading to improved drug absorption and bioavailability. Additionally, some polysaccharides can form gels or matrices that can release drugs slowly over time, providing sustained drug delivery and reducing the need for frequent dosing. Thus, this review aims to provide an overview of the pre-clinical and clinical studies of polysaccharide polymers applied for glaucoma treatment along with their therapeutic outcomes.
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Affiliation(s)
- Tanvir Ahmed
- Food Engineering & Tea Technology, Shahjalal University of Science & Technology, Sylhet 3114, Bangladesh
| | - Md Nazmul Islam
- Deaprtment of Microbiology, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Rina Monalisa
- Deaprtment of Microbiology, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Feroz Ehsan
- Department of Medicine, Aziz Fatimah Hospital, Faisalabad 38000, Pakistan
| | - Shu-Wei Huang
- Department of Orthopedics, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
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Zueva MV, Neroeva NV, Zhuravleva AN, Bogolepova AN, Kotelin VV, Fadeev DV, Tsapenko IV. Fractal Phototherapy in Maximizing Retina and Brain Plasticity. ADVANCES IN NEUROBIOLOGY 2024; 36:585-637. [PMID: 38468055 DOI: 10.1007/978-3-031-47606-8_31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
The neuroplasticity potential is reduced with aging and impairs during neurodegenerative diseases and brain and visual system injuries. This limits the brain's capacity to repair the structure and dynamics of its activity after lesions. Maximization of neuroplasticity is necessary to provide the maximal CNS response to therapeutic intervention and adaptive reorganization of neuronal networks in patients with degenerative pathology and traumatic injury to restore the functional activity of the brain and retina.Considering the fractal geometry and dynamics of the healthy brain and the loss of fractality in neurodegenerative pathology, we suggest that the application of self-similar visual signals with a fractal temporal structure in the stimulation therapy can reactivate the adaptive neuroplasticity and enhance the effectiveness of neurorehabilitation. This proposition was tested in the recent studies. Patients with glaucoma had a statistically significant positive effect of fractal photic therapy on light sensitivity and the perimetric MD index, which shows that methods of fractal stimulation can be a novel nonpharmacological approach to neuroprotective therapy and neurorehabilitation. In healthy rabbits, it was demonstrated that a long-term course of photostimulation with fractal signals does not harm the electroretinogram (ERG) and retina structure. Rabbits with modeled retinal atrophy showed better dynamics of the ERG restoration during daily stimulation therapy for a week in comparison with the controls. Positive changes in the retinal function can indirectly suggest the activation of its adaptive plasticity and the high potential of stimulation therapy with fractal visual stimuli in a nonpharmacological neurorehabilitation, which requires further study.
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Affiliation(s)
- Marina V Zueva
- Department of Clinical Physiology of Vision, Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia
| | - Natalia V Neroeva
- Department of Pathology of the Retina and Optic Nerve, Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia
| | - Anastasia N Zhuravleva
- Department of Glaucoma, Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia
| | - Anna N Bogolepova
- Department of neurology, neurosurgery and medical genetics, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Vladislav V Kotelin
- Department of Clinical Physiology of Vision, Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia
| | - Denis V Fadeev
- Scientific Experimental Center Department, Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia
| | - Irina V Tsapenko
- Department of Clinical Physiology of Vision, Helmholtz National Medical Research Center of Eye Diseases, Moscow, Russia
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Rohilla M, Rishabh, Bansal S, Garg A, Dhiman S, Dhankhar S, Saini M, Chauhan S, Alsubaie N, Batiha GES, Albezrah NKA, Singh TG. Discussing pathologic mechanisms of Diabetic retinopathy & therapeutic potentials of curcumin and β-glucogallin in the management of Diabetic retinopathy. Biomed Pharmacother 2023; 169:115881. [PMID: 37989030 DOI: 10.1016/j.biopha.2023.115881] [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: 07/30/2023] [Revised: 11/04/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023] Open
Abstract
Diabetic retinopathy (DR) is a form of retinal microangiopathy that occurs as a result of long-term Diabetes mellitus (DM). Patients with Diabetes mellitus typically suffer from DR as a progression of the disease that may be due to initiation and dysregulation of pathways like the polyol, hexosamine, the AGE/RAGE, and the PKC pathway, which all have negative impacts on eye health and vision. In this review, various databases, including PubMed, Google Scholar, Web of Science, and Science Direct, were scoured for data relevant to the aforementioned title. The three most common therapies for DR today are retinal photocoagulation, anti-vascular endothelial growth factor (VEGF) therapy, and vitrectomy, however, there are a number of drawbacks and limits to these methods. So, it is of critical importance and profound interest to discover treatments that may successfully address the pathogenesis of DR. Curcumin and β-glucogallin are the two potent compounds of natural origin that are already being used in various nutraceutical formulations for several ailments. They have been shown potent antiapoptotic, anti-inflammatory, antioxidant, anticancer, and pro-vascular function benefits in animal experiments. Their parent plant species have been used for generations by practitioners of traditional herbal medicine for the treatment and prevention of various eye ailments. In this review, we will discuss about pathophysiology of Diabetic retinopathy and the therapeutic potentials of curcumin and β-glucogallin one of the principal compounds from Curcuma longa and Emblica officinalis in Diabetic retinopathy.
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Affiliation(s)
- Manni Rohilla
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India; Swami Vivekanand College of Pharmacy, Ram Nagar, Banur, Punjab 140601, India
| | - Rishabh
- M. M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India
| | - Seema Bansal
- M. M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India
| | - Anjali Garg
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India; Swami Devi Dyal College of Pharmacy, Golpura Barwala, Panchkula, Haryana 134118, India
| | - Sachin Dhiman
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India
| | - Sanchit Dhankhar
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India
| | - Monika Saini
- Swami Vivekanand College of Pharmacy, Ram Nagar, Banur, Punjab 140601, India; M. M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133207, India
| | - Samrat Chauhan
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India.
| | - Nawal Alsubaie
- Department of Pharmacy Practice, College of Pharmacy, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, AlBeheira, Egypt
| | - Nisreen Khalid Aref Albezrah
- Obstetric and Gynecology Department, Medicine College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
| | - Thakur Gurjeet Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab 140401, India.
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Wang X, Wang T, Lam E, Alvarez D, Sun Y. Ocular Vascular Diseases: From Retinal Immune Privilege to Inflammation. Int J Mol Sci 2023; 24:12090. [PMID: 37569464 PMCID: PMC10418793 DOI: 10.3390/ijms241512090] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The eye is an immune privileged tissue that insulates the visual system from local and systemic immune provocation to preserve homeostatic functions of highly specialized retinal neural cells. If immune privilege is breached, immune stimuli will invade the eye and subsequently trigger acute inflammatory responses. Local resident microglia become active and release numerous immunological factors to protect the integrity of retinal neural cells. Although acute inflammatory responses are necessary to control and eradicate insults to the eye, chronic inflammation can cause retinal tissue damage and cell dysfunction, leading to ocular disease and vision loss. In this review, we summarized features of immune privilege in the retina and the key inflammatory responses, factors, and intracellular pathways activated when retinal immune privilege fails, as well as a highlight of the recent clinical and research advances in ocular immunity and ocular vascular diseases including retinopathy of prematurity, age-related macular degeneration, and diabetic retinopathy.
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Affiliation(s)
- Xudong Wang
- Department of Ophthalmology, Harvard Medical School, Boston Children’s Hospital, Boston, MA 02115, USA; (X.W.)
| | - Tianxi Wang
- Department of Ophthalmology, Harvard Medical School, Boston Children’s Hospital, Boston, MA 02115, USA; (X.W.)
| | - Enton Lam
- Department of Ophthalmology, Harvard Medical School, Boston Children’s Hospital, Boston, MA 02115, USA; (X.W.)
| | - David Alvarez
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Ye Sun
- Department of Ophthalmology, Harvard Medical School, Boston Children’s Hospital, Boston, MA 02115, USA; (X.W.)
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7
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Li S, Chen L, Fu Y. Nanotechnology-based ocular drug delivery systems: recent advances and future prospects. J Nanobiotechnology 2023; 21:232. [PMID: 37480102 PMCID: PMC10362606 DOI: 10.1186/s12951-023-01992-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/09/2023] [Indexed: 07/23/2023] Open
Abstract
Ocular drug delivery has constantly challenged ophthalmologists and drug delivery scientists due to various anatomical and physiological barriers. Static and dynamic ocular barriers prevent the entry of exogenous substances and impede therapeutic agents' active absorption. This review elaborates on the anatomy of the eye and the associated constraints. Followed by an illustration of some common ocular diseases, including glaucoma and their current clinical therapies, emphasizing the significance of drug therapy in treating ocular diseases. Subsequently, advances in ocular drug delivery modalities, especially nanotechnology-based ocular drug delivery systems, are recommended, and some typical research is highlighted. Based on the related research, systematic and comprehensive characterizations of the nanocarriers are summarized, hoping to assist with future research. Besides, we summarize the nanotechnology-based ophthalmic drugs currently on the market or still in clinical trials and the recent patents of nanocarriers. Finally, inspired by current trends and therapeutic concepts, we provide an insight into the challenges faced by novel ocular drug delivery systems and further put forward directions for future research. We hope this review can provide inspiration and motivation for better design and development of novel ophthalmic formulations.
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Affiliation(s)
- Shiding Li
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China
| | - Liangbo Chen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China
| | - Yao Fu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, China.
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Nair VS, Srivastava V, Bhavana V, Yadav R, Rajana N, Singh SB, Mehra NK. Exploring Penetration Ability of Carbonic Anhydrase Inhibitor-Loaded Ultradeformable Bilosome for Effective Ocular Application. AAPS PharmSciTech 2023; 24:157. [PMID: 37470885 DOI: 10.1208/s12249-023-02617-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/01/2023] [Indexed: 07/21/2023] Open
Abstract
Brinzolamide is an effective carbonic anhydrase inhibitor widely used in glaucoma therapy but limits its application due to inadequate aqueous solubility and permeability. The aim of the present research work is the development and characterization of brinzolamide-loaded ultradeformable bilosomes to enhance the corneal permeation of the drug. These ultradeformable bilosomes were prepared by ethanol injection method and evaluated for physicochemical properties, particle size, morphology, drug release, ultra-deformability, corneal permeation, and irritation potential. The optimized formulation exhibited an average particle size of 205.4 ± 2.04 nm with mono-dispersity (0.109 ± 0.002) and showed entrapment efficiency of 75.02 ± 0.017%, deformability index of 3.91, and release the drug in a sustained manner. The brinzolamide-loaded ultradeformable bilosomes released 76.29 ± 3.77% of the drug in 10 h that is 2.25 times higher than the free drug solution. The bilosomes were found non-irritant to eyes with a potential irritancy score of 0 in Hen's egg-chorioallantoic membrane assay. Brinzolamide-loaded ultradeformable bilosomes showed 83.09 ± 5.1% of permeation in 6 h and trans-corneal permeability of 8.78 ± 0.14 cm/h during the ex vivo permeation study. The acquired findings clearly revealed that the brinzolamide-loaded ultradeformable bilosomes show promising output and are useful in glaucoma therapy.
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Affiliation(s)
- Vishnumaya S Nair
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, Ministry of Chemical and Family Welfare, National Institute of Pharmaceutical Education and Research (NIPER), Telangana, 500 037, Hyderabad, India
| | - Vaibhavi Srivastava
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, Ministry of Chemical and Family Welfare, National Institute of Pharmaceutical Education and Research (NIPER), Telangana, 500 037, Hyderabad, India
| | - Valamla Bhavana
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, Ministry of Chemical and Family Welfare, National Institute of Pharmaceutical Education and Research (NIPER), Telangana, 500 037, Hyderabad, India
| | - Rati Yadav
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, Ministry of Chemical and Family Welfare, National Institute of Pharmaceutical Education and Research (NIPER), Telangana, 500 037, Hyderabad, India
| | - Naveen Rajana
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, Ministry of Chemical and Family Welfare, National Institute of Pharmaceutical Education and Research (NIPER), Telangana, 500 037, Hyderabad, India
| | - Shashi Bala Singh
- Department of Biological Science, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Neelesh Kumar Mehra
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, Ministry of Chemical and Family Welfare, National Institute of Pharmaceutical Education and Research (NIPER), Telangana, 500 037, Hyderabad, India.
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Hyderabad, Telangana, India.
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Raveendran R, Prabakaran L, Senthil R, Yesudhason BV, Dharmalingam S, Sathyaraj WV, Atchudan R. Current Innovations in Intraocular Pressure Monitoring Biosensors for Diagnosis and Treatment of Glaucoma-Novel Strategies and Future Perspectives. BIOSENSORS 2023; 13:663. [PMID: 37367028 DOI: 10.3390/bios13060663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/11/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023]
Abstract
Biosensors are devices that quantify biologically significant information required for diverse applications, such as disease diagnosis, food safety, drug discovery and detection of environmental pollutants. Recent advancements in microfluidics, nanotechnology and electronics have led to the development of novel implantable and wearable biosensors for the expedient monitoring of diseases such as diabetes, glaucoma and cancer. Glaucoma is an ocular disease which ranks as the second leading cause for loss of vision. It is characterized by the increase in intraocular pressure (IOP) in human eyes, which results in irreversible blindness. Currently, the reduction of IOP is the only treatment used to manage glaucoma. However, the success rate of medicines used to treat glaucoma is quite minimal due to their curbed bioavailability and reduced therapeutic efficacy. The drugs must pass through various barriers to reach the intraocular space, which in turn serves as a major challenge in glaucoma treatment. Rapid progress has been observed in nano-drug delivery systems for the early diagnosis and prompt therapy of ocular diseases. This review gives a deep insight into the current advancements in the field of nanotechnology for detecting and treating glaucoma, as well as for the continuous monitoring of IOP. Various nanotechnology-based achievements, such as nanoparticle/nanofiber-based contact lenses and biosensors that can efficiently monitor IOP for the efficient detection of glaucoma, are also discussed.
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Affiliation(s)
- Rubiya Raveendran
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam 603103, Tamil Nadu, India
| | - Lokesh Prabakaran
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam 603103, Tamil Nadu, India
| | - Rethinam Senthil
- Department of Pharmacology, Saveetha Dental College and Hospitals, SIMATS, Chennai 600077, Tamil Nadu, India
| | - Beryl Vedha Yesudhason
- Regeneration and Stem Cell Biology Lab, Centre for Molecular and Nanomedical Sciences, International Research Centre, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - Sankari Dharmalingam
- Department of Biotechnology, College of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Weslen Vedakumari Sathyaraj
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam 603103, Tamil Nadu, India
| | - Raji Atchudan
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, Tamil Nadu, India
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Akbari E, Imani R, Shokrollahi P, Jarchizadeh R, Heidari keshel S. Hydrogel-based formulations for drug delivery to the anterior segment of the eye. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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11
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Chen K, Li Y, Li Y, Pan W, Tan G. Silk Fibroin Combined with Electrospinning as a Promising Strategy for Tissue Regeneration. Macromol Biosci 2023; 23:e2200380. [PMID: 36409150 DOI: 10.1002/mabi.202200380] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/14/2022] [Indexed: 11/23/2022]
Abstract
The development of tissue engineering scaffolds is of great significance for the repair and regeneration of damaged tissues and organs. Silk fibroin (SF) is a natural protein polymer with good biocompatibility, biodegradability, excellent physical and mechanical properties and processability, making it an ideal universal tissue engineering scaffold material. Nanofibers prepared by electrospinning have attracted extensive attention in the field of tissue engineering due to their excellent mechanical properties, high specific surface area, and similar morphology as to extracellular matrix (ECM). The combination of silk fibroin and electrospinning is a promising strategy for the preparation of tissue engineering scaffolds. In this review, the research progress of electrospun silk fibroin nanofibers in the regeneration of skin, vascular, bone, neural, tendons, cardiac, periodontal, ocular and other tissues is discussed in detail.
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Affiliation(s)
- Kai Chen
- Hainan Provincial Key Laboratory of R&D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, P. R. China
| | - Yonghui Li
- Hainan Provincial Key Laboratory of R&D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, P. R. China
| | - Youbin Li
- Hainan Provincial Key Laboratory of R&D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, P. R. China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Guoxin Tan
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmacy, Hainan University, Haikou, 570228, P. R. China
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Kwon S, Lee S, Hur J, Ko K, Fei X, Jeong KW, Sishtla K, Muniyandi A, Bae M, Corson TW, Seo SY. Synthesis and Structure Revision of Naturally Occurring Homoisoflavane (+)-Dracaeconolide B. JOURNAL OF NATURAL PRODUCTS 2023; 86:149-156. [PMID: 36542352 DOI: 10.1021/acs.jnatprod.2c00859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Dracaeconolide B (1), a naturally occurring homoisoflavane, was isolated from the red resin of Dracaena cochinchinensis. Efforts have been made to elucidate the exact structure of compound 1 since it was confirmed that dracaeconolide B did not contain a 7-hydroxy-5,8-dimethoxy moiety. The structure of dracaeconolide B was revised by synthesis of three homoisoflavanes containing a 5,6,7-trioxygenated moiety each and analysis by NMR spectroscopy. The revised structure of dracaeconolide B was proposed as 3-(4-hydroxybenzyl)-7-hydroxy-5,6-dimethoxychromane. Noyori's Ru-catalyzed asymmetric transfer hydrogenation was used to synthesize (+)-dracaeconolide B. The absolute configuration of the compound was revised to S based on the results obtained by the electronic circular dichroism calculation. We examined the antiangiogenic activity of (S)- and (R)-dracaeconolide B and of synthetic 5,6,7- and 5,7,8-trioxygenated homoisoflavanes. The results can potentially help in the synthesis of related natural products and support drug discovery to treat neovascular eye diseases.
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Affiliation(s)
- Sangil Kwon
- College of Pharmacy, Gachon University, Incheon21936, Republic of Korea
| | - Sanha Lee
- College of Pharmacy, Gachon University, Incheon21936, Republic of Korea
| | - Joonseong Hur
- College of Pharmacy, Gachon University, Incheon21936, Republic of Korea
| | - Keebeom Ko
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul08826, Republic of Korea
| | - Xiang Fei
- College of Pharmacy, Gachon University, Incheon21936, Republic of Korea
| | - Kwang Won Jeong
- College of Pharmacy, Gachon University, Incheon21936, Republic of Korea
| | | | | | - Munhyung Bae
- College of Pharmacy, Gachon University, Incheon21936, Republic of Korea
| | | | - Seung-Yong Seo
- College of Pharmacy, Gachon University, Incheon21936, Republic of Korea
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13
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Theodoridis K, Gika H, Kotali A. Acylcarnitines in Ophthalmology: Promising Emerging Biomarkers. Int J Mol Sci 2022; 23:ijms232416183. [PMID: 36555822 PMCID: PMC9784861 DOI: 10.3390/ijms232416183] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Several common ocular diseases are leading causes of irreversible visual impairment. Over the last decade, various mainly untargeted metabolic studies have been performed to show that metabolic dysfunction plays an important role in the pathogenesis of ocular diseases. A number of metabolites in plasma/serum, aqueous or vitreous humor, or in tears have been found to differ between patients and controls; among them are L-carnitine and acylcarnitines, which are essential for mitochondrial fatty acid oxidation. The metabolic profile of carnitines regarding a variety of diseases has attracted researchers' interest. In this review, we present and discuss recent advances that have been made in the identification of carnitines as potential metabolic biomarkers in common ocular diseases, such as age-related macular degeneration, diabetic retinopathy, retinopathy of prematurity, central retinal vein occlusion, primary open-angle glaucoma, rhegmatogenous retinal detachment, and dry eye syndrome.
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Affiliation(s)
- Konstantinos Theodoridis
- Laboratory of Organic Chemistry, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Laboratory of Forensic Medicine and Toxicology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Correspondence:
| | - Helen Gika
- Laboratory of Forensic Medicine and Toxicology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center B1.4, 57001 Thessaloniki, Greece
| | - Antigoni Kotali
- Laboratory of Organic Chemistry, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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14
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Sakpal D, Gharat S, Momin M. Recent advancements in polymeric nanofibers for ophthalmic drug delivery and ophthalmic tissue engineering. BIOMATERIALS ADVANCES 2022; 141:213124. [PMID: 36148709 DOI: 10.1016/j.bioadv.2022.213124] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/10/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Nanofibers due to their unique properties such as high surface-to-volume ratio, porous structure, mechanical strength, flexibility and their resemblance to the extracellular matrix, have been researched extensively in the field of ocular drug delivery and tissue engineering. Further, different modifications considering the formulation and process parameters have been carried out to alter the drug release profile and its interaction with the surrounding biological environment. Electrospinning is the most commonly used technique for preparing nanofibers with industrial scalability. Advanced techniques such as co-axial electrospinning and combined system such as embedding nanoparticles in nanofiber provide an alternative approach to enhance the performance of the scaffold. Electrospun nanofibers offers a matrix like structure for cell regeneration. Nanofibers have been used for ocular delivery of various drugs like antibiotics, anti-inflammatory and various proteins. In addition, lens-coated medical devices provide new insights into the clinical use of nanofibers. Through fabricating the nanofibers researchers have overcome the issues of low bioavailability and compatibility with ocular tissue. Therefore, nanofibers have great potential in ocular drug delivery and tissue engineering and have the capacity to revolutionize these therapeutic areas in the field of ophthalmology. This review is mainly focused on the recent advances in the preparation of nanofibers and their applications in ocular drug delivery and tissue engineering. The authors have attempted to emphasize the processing challenges and future perspectives along with an overview of the safety and toxicity aspects of nanofibers.
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Affiliation(s)
- Darshana Sakpal
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Maharashtra, India.
| | - Sankalp Gharat
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Maharashtra, India.
| | - Munira Momin
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Maharashtra, India; SVKM's Shri C B Patel Research Center for Chemistry and Biological Sciences, Mumbai, Maharashtra, India.
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15
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Ocular Drug Delivery: Advancements and Innovations. Pharmaceutics 2022; 14:pharmaceutics14091931. [PMID: 36145679 PMCID: PMC9506479 DOI: 10.3390/pharmaceutics14091931] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/24/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Ocular drug delivery has been significantly advanced for not only pharmaceutical compounds, such as steroids, nonsteroidal anti-inflammatory drugs, immune modulators, antibiotics, and so forth, but also for the rapidly progressed gene therapy products. For conventional non-gene therapy drugs, appropriate surgical approaches and releasing systems are the main deliberation to achieve adequate treatment outcomes, whereas the scope of “drug delivery” for gene therapy drugs further expands to transgene construct optimization, vector selection, and vector engineering. The eye is the particularly well-suited organ as the gene therapy target, owing to multiple advantages. In this review, we will delve into three main aspects of ocular drug delivery for both conventional drugs and adeno-associated virus (AAV)-based gene therapy products: (1) the development of AAV vector systems for ocular gene therapy, (2) the innovative carriers of medication, and (3) administration routes progression.
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16
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Fabre M, Mateo L, Lamaa D, Baillif S, Pagès G, Demange L, Ronco C, Benhida R. Recent Advances in Age-Related Macular Degeneration Therapies. Molecules 2022; 27:molecules27165089. [PMID: 36014339 PMCID: PMC9414333 DOI: 10.3390/molecules27165089] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Age-related macular degeneration (AMD) was described for the first time in the 1840s and is currently the leading cause of blindness for patients over 65 years in Western Countries. This disease impacts the eye’s posterior segment and damages the macula, a retina section with high levels of photoreceptor cells and responsible for the central vision. Advanced AMD stages are divided into the atrophic (dry) form and the exudative (wet) form. Atrophic AMD consists in the progressive atrophy of the retinal pigment epithelium (RPE) and the outer retinal layers, while the exudative form results in the anarchic invasion by choroidal neo-vessels of RPE and the retina. This invasion is responsible for fluid accumulation in the intra/sub-retinal spaces and for a progressive dysfunction of the photoreceptor cells. To date, the few existing anti-AMD therapies may only delay or suspend its progression, without providing cure to patients. However, in the last decade, an outstanding number of research programs targeting its different aspects have been initiated by academics and industrials. This review aims to bring together the most recent advances and insights into the mechanisms underlying AMD pathogenicity and disease evolution, and to highlight the current hypotheses towards the development of new treatments, i.e., symptomatic vs. curative. The therapeutic options and drugs proposed to tackle these mechanisms are analyzed and critically compared. A particular emphasis has been given to the therapeutic agents currently tested in clinical trials, whose results have been carefully collected and discussed whenever possible.
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Affiliation(s)
- Marie Fabre
- Institut de Chimie de Nice UMR 7272, Université Côte d’Azur, CNRS, 06108 Nice, France
| | - Lou Mateo
- Institut de Chimie de Nice UMR 7272, Université Côte d’Azur, CNRS, 06108 Nice, France
| | - Diana Lamaa
- CiTCoM, UMR 8038 CNRS, Faculté de Pharmacie, Université de Paris Cité, 4, Avenue de l’Observatoire, 75006 Paris, France
| | - Stéphanie Baillif
- Ophthalmology Department, University Hospital of Nice, 30 Avenue De La Voie Romaine, 06000 Nice, France
| | - Gilles Pagès
- Institute for Research on Cancer and Aging (IRCAN), UMR 7284 and INSERM U 1081, Université Côte d’Azur, CNRS 28 Avenue de Valombrose, 06107 Nice, France
| | - Luc Demange
- Institut de Chimie de Nice UMR 7272, Université Côte d’Azur, CNRS, 06108 Nice, France
- CiTCoM, UMR 8038 CNRS, Faculté de Pharmacie, Université de Paris Cité, 4, Avenue de l’Observatoire, 75006 Paris, France
- Correspondence: (L.D.); (C.R.); (R.B.)
| | - Cyril Ronco
- Institut de Chimie de Nice UMR 7272, Université Côte d’Azur, CNRS, 06108 Nice, France
- Correspondence: (L.D.); (C.R.); (R.B.)
| | - Rachid Benhida
- Institut de Chimie de Nice UMR 7272, Université Côte d’Azur, CNRS, 06108 Nice, France
- Department of Chemical and Biochemical Sciences-Green Process Engineering (CBS-GPE), Mohamed VI Polytechnic University (UM6P), Benguerir 43150, Morocco
- Correspondence: (L.D.); (C.R.); (R.B.)
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17
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Shao Z, Chwa M, Atilano SR, Park J, Karageozian H, Karageozian V, Kenney MC. The Transcriptome Profile of Retinal Pigment Epithelium and Müller Cell Lines Protected by Risuteganib Against Hydrogen Peroxide Stress. J Ocul Pharmacol Ther 2022; 38:513-526. [PMID: 35731128 PMCID: PMC9508878 DOI: 10.1089/jop.2022.0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Purpose: Oxidative stress contributes to the pathogenesis of vision-impairing diseases. In the retina, retinal pigment epithelium (RPE) and Müller cells support neuronal homeostasis, but also contribute to pathological development under stressed conditions. Recent studies found that the investigational drug risuteganib (RSG) has a good safety profile, provided protection in experimental models, and improved visual acuity in patients. The present in vitro study evaluated the effects of RSG in RPE and Müller cell lines stressed with the oxidant hydrogen peroxide (H2O2). Methods: Human RPE (ARPE-19) and Müller (MIO-M1) cell lines were treated with various combinations of RSG and H2O2. Trypan blue assay was used to investigate the effect of compounds on cell viability. Gene expression was measured using RNA sequencing to identify regulated genes and the biological processes and pathways involved. Results: Trypan blue assay found RSG pre-treatment significantly protected against H2O2-induced cell death in ARPE-19 and MIO-M1 cells. Transcriptome analysis found H2O2 regulated genes in several disease-relevant biological processes, including cell adhesion, migration, death, and proliferation; ECM organization; angiogenesis; metabolism; and immune system processes. RSG pre-treatment modulated these gene expression profiles in the opposite direction of H2O2. Pathway analysis found genes in integrin, AP-1, and syndecan signaling pathways were regulated. Expression of selected RSG-regulated genes was validated using qRT-PCR. Conclusions: RSG protected cultured human RPE and Müller cell lines against H2O2-induced cell death and mitigated the associated transcriptome changes in biological processes and pathways relevant to the pathogenesis of retinal diseases. These results demonstrate RSG reduced oxidative stress-induced toxicity in two retinal cell lines with potential relevance to the treatment of human diseases.
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Affiliation(s)
- Zixuan Shao
- Allegro Ophthalmics, LLC, San Juan Capistrano, California, USA
| | - Marilyn Chwa
- Gavin Herbert Eye Institute, University of California Irvine, Irvine, California, USA
| | - Shari R Atilano
- Gavin Herbert Eye Institute, University of California Irvine, Irvine, California, USA
| | - John Park
- Allegro Ophthalmics, LLC, San Juan Capistrano, California, USA
| | | | | | - M Cristina Kenney
- Gavin Herbert Eye Institute, University of California Irvine, Irvine, California, USA.,Department of Pathology and Laboratory Medicine, University of California Irvine, Irvine, California, USA
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18
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Extracellular Vesicles in Corneal Fibrosis/Scarring. Int J Mol Sci 2022; 23:ijms23115921. [PMID: 35682600 PMCID: PMC9180085 DOI: 10.3390/ijms23115921] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/21/2022] [Accepted: 05/23/2022] [Indexed: 11/24/2022] Open
Abstract
Communication between cells and the microenvironment is a complex, yet crucial, element in the development and progression of varied physiological and pathological processes. Accumulating evidence in different disease models highlights roles of extracellular vesicles (EVs), either in modulating cell signaling paracrine mechanism(s) or harnessing their therapeutic moiety. Of interest, the human cornea functions as a refractive and transparent barrier that protects the intraocular elements from the external environment. Corneal trauma at the ocular surface may lead to diminished corneal clarity and detrimental effects on visual acuity. The aberrant activation of corneal stromal cells, which leads to myofibroblast differentiation and a disorganized extracellular matrix is a central biological process that may result in corneal fibrosis/scarring. In recent years, understanding the pathological and therapeutic EV mechanism(s) of action in the context of corneal biology has been a topic of increasing interest. In this review, we describe the clinical relevance of corneal fibrosis/scarring and how corneal stromal cells contribute to wound repair and their generation of the stromal haze. Furthermore, we will delve into EV characterization, their subtypes, and the pathological and therapeutic roles they play in corneal scarring/fibrosis.
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19
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Fardous J, Inoue Y, Yoshida K, Ono F, Higuchi A, Ijima H. Delivery of Hydrophobic Drugs to the Posterior Ocular Region by Gel-in-Water Nanoemulsion. Transl Vis Sci Technol 2022; 11:16. [PMID: 35576213 PMCID: PMC9123518 DOI: 10.1167/tvst.11.5.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Purpose The aim of this study was to develop a nanogel emulsion as a minimally invasive, safe, and effective treatment alternative for posterior ocular diseases. Methods A gel-in-water (G/W) nanoemulsion was developed by ultrasonication using beeswax as an organogelator. Different physicochemical properties were evaluated along with particle size analysis by dynamic light scattering. In vitro biocompatibility of G/W nanoemulsion using rat hepatocytes and human umbilical vein endothelial cells (HUVECs) and in vivo corneal permeability as eye drops were investigated. Results The nanogel emulsion was monodispersed with a polydispersity index and particle diameter of approximately 0.2 and 200 nm, respectively. The zeta potential value of −8.1 mV suggested enhanced stability and improved retinal permeability of nanoparticles. The prepared nanoemulsion was found to be biocompatible with hepatocytes and HUVECs in vitro. Moreover, in vivo study demonstrated high permeability of G/W nanoemulsion to the retinal layer with no ocular irritation. Conclusions G/W nanoemulsions have the potential for topical drug delivery in the posterior eye segment with maximum therapeutic efficacy. Translational Relevance Organogel nanodispersion is a new concept to deliver hydrophobic drugs to the posterior segment of eyes as a novel drug delivery system.
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Affiliation(s)
- Jannatul Fardous
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, Fukuoka, Japan.,Department of Pharmacy, Faculty of Science, Comilla University, Cumilla, Bangladesh
| | - Yuuta Inoue
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, Fukuoka, Japan
| | - Kozue Yoshida
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, Fukuoka, Japan
| | - Fumiyasu Ono
- Global Innovation Center, Kyushu University, Fukuoka Industry-Academia Symphonicity, Kyudai-Shinmachi, Nishi-ku, Fukuoka, Japan
| | - Akihiro Higuchi
- Frontier Science and Social Co-creation Initiative, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, Japan
| | - Hiroyuki Ijima
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, Fukuoka, Japan
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20
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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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21
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Bhattacharyya N, Singh S, Mukherjee D, Das N, Chatterjee A, Adhikari A, Mondal S, Mondal P, Mallick AK, Pal SK. Picosecond-resolved fluorescence resonance energy transfer (FRET) in diffuse reflectance spectroscopy explores biologically relevant hidden molecular contacts in a non-invasive way. Phys Chem Chem Phys 2022; 24:6176-6184. [PMID: 35229087 DOI: 10.1039/d1cp05159h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potentiality of Förster resonance energy transfer (FRET) for studying molecular interactions inside biological tissues with improved spatial (Angström) and temporal (picosecond) resolution is well established. On the other hand, the efficacy of diffuse reflectance spectroscopy (DRS) that uses optical radiation in order to determine physiological parameters including haemoglobin, and oxygen saturation is well known. Here we have made an attempt to combine diffuse reflectance spectroscopy (DRS) with picosecond-resolved FRET in order to show improvement in the exploration of molecular contacts in biological tissue models. We define the technique as ultrafast time-resolved diffuse reflectance spectroscopy (UTRDRS). The illuminated photon of the fluorophore from the surface of the tissue-mimicking layers carries the hidden information of the molecular contact. In order to investigate the validation of the Kubelka-Munk (KM) formulism for the developed UTRDRS technique in tissue phantoms, we have studied the propagation of incandescent and picosecond-laser light through several layers of cellulose membranes. While picosecond-resolved FRET in the diffuse reflected light confirms the hidden nano-contact (4.6 nm) of two different dye layers (8-anilino-1-naphthalenesulfonic acid and Nile blue), high-resolution optical microscopy on the cross-section of the layers reveals the proximity and contacts of the layers with limited spatial resolution (∼300 nm). We have also investigated two biologically relevant molecules, namely carboxyfluorescein and haemoglobin, in tissue phantom layers in order to show the efficacy of the UTRDRS technique. Overall, our studies based on UTRDRS in tissue mimicking layers may have potential applications in non-invasive biomedical diagnosis for patients suffering from skin diseases.
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Affiliation(s)
- Neha Bhattacharyya
- Department of Radio Physics and Electronics, University of Calcutta, Kolkata 700009, India.,Technical Research Centre, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India.
| | - Soumendra Singh
- Technical Research Centre, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India.
| | - Dipanjan Mukherjee
- Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Nairit Das
- Department of Electrical Engineering, Indian Institute of Technology, Kharagpur 721302, India
| | - Arka Chatterjee
- Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Aniruddha Adhikari
- Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Susmita Mondal
- Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Pulak Mondal
- Department of Radio Physics and Electronics, University of Calcutta, Kolkata 700009, India
| | - Asim Kumar Mallick
- Department of Paediatrics, Nil Ratan Sircar Medical College and Hospital, Kolkata 700014, India
| | - Samir Kumar Pal
- Technical Research Centre, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India. .,Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
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22
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Chauhan A, Khan T. Prodrugs - Current development and applications in ocular drug delivery. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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23
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Pu Q, Ma Q, Li J, Li G, Li XY. Soft substrate stiffness modifies corneal epithelial stem cell phenotype through hippo-YAP/notch pathway crosstalk. Med Hypotheses 2021; 156:110687. [PMID: 34627046 DOI: 10.1016/j.mehy.2021.110687] [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: 06/03/2021] [Revised: 08/23/2021] [Accepted: 09/17/2021] [Indexed: 11/16/2022]
Abstract
Corneal disease remains to be one of the leading causes of blindness in the world and limbal stem cell (LSC) therapy is a promising therapy for LSC deficiency, which is associated with the diseased corneal epithelium repair. Soft substrate could effectively promote the stemness maintenance of LSC and thus modification of cell culture substrate would help in the potential LSC deficiency therapy. Both Hippo-Yes-associated protein (YAP) and Notch pathway have been reported to affect the LSC function, however, the detailed mechanisms remain unclear. Instead of some soft but biologically toxic substrates, we present a hypothesis on the application of soft substrate generated by HA/PTX3, an FDA approved nontoxic drug, on the LSC culture in this current study. Soft substrate could help in the stemness maintenance and thus promote the LSC deficiency treatment. In more detailed mechanism detection, we hypothesize that soft substrate would block the activation of Hippo-YAP pathway and thus decrease the activity of Notch pathway. This proposed hypothesis should be evaluated by both a series of in-vitro experiments based on soft and stiff substrates and in-vivo treatment with LSC cultured in different conditions. Advanced experiments on related cellular behaviors and detailed molecular mechanisms would provide us more knowledge on the molecular mechanism detection as well as cell transplantation therapy.
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Affiliation(s)
- Qi Pu
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Qian Ma
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Jing Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Guigang Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Xin-Yu Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China.
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24
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Marchesi N, Fahmideh F, Boschi F, Pascale A, Barbieri A. Ocular Neurodegenerative Diseases: Interconnection between Retina and Cortical Areas. Cells 2021; 10:2394. [PMID: 34572041 PMCID: PMC8469605 DOI: 10.3390/cells10092394] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 12/13/2022] Open
Abstract
The possible interconnection between the eye and central nervous system (CNS) has been a topic of discussion for several years just based on fact that the eye is properly considered an extension of the brain. Both organs consist of neurons and derived from a neural tube. The visual process involves photoreceptors that receive light stimulus from the external environment and send it to retinal ganglionic cells (RGC), one of the cell types of which the retina is composed. The retina, the internal visual membrane of the eye, processes the visual stimuli in electric stimuli to transfer it to the brain, through the optic nerve. Retinal chronic progressive neurodegeneration, which may occur among the elderly, can lead to different disorders of the eye such as glaucoma, age-related macular degeneration (AMD), and diabetic retinopathy (DR). Mainly in the elderly population, but also among younger people, such ocular pathologies are the cause of irreversible blindness or impaired, reduced vision. Typical neurodegenerative diseases of the CSN are a group of pathologies with common characteristics and etiology not fully understood; some risk factors have been identified, but they are not enough to justify all the cases observed. Furthermore, several studies have shown that also ocular disorders present characteristics of neurodegenerative diseases and, on the other hand, CNS pathologies, i.e., Alzheimer disease (AD) and Parkinson disease (PD), which are causes of morbidity and mortality worldwide, show peculiar alterations at the ocular level. The knowledge of possible correlations could help to understand the mechanisms of onset. Moreover, the underlying mechanisms of these heterogeneous disorders are still debated. This review discusses the characteristics of the ocular illnesses, focusing on the relationship between the eye and the brain. A better comprehension could help in future new therapies, thus reducing or avoiding loss of vision and improve quality of life.
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Affiliation(s)
| | | | | | | | - Annalisa Barbieri
- Department of Drug Sciences, Pharmacology Section, University of Pavia, Viale Taramelli 14, 27100 Pavia, Italy; (N.M.); (F.F.); (F.B.); (A.P.)
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Hsu TJ, Nepali K, Tsai CH, Imtiyaz Z, Lin FL, Hsiao G, Lai MJ, Cheng YW. The HDAC/HSP90 Inhibitor G570 Attenuated Blue Light-Induced Cell Migration in RPE Cells and Neovascularization in Mice through Decreased VEGF Production. Molecules 2021; 26:4359. [PMID: 34299636 PMCID: PMC8305912 DOI: 10.3390/molecules26144359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/11/2021] [Accepted: 07/16/2021] [Indexed: 11/16/2022] Open
Abstract
Age-related macular degeneration (AMD) occurs due to an abnormality of retinal pigment epithelium (RPE) cells that leads to gradual degeneration of the macula. Currently, AMD drug pipelines are endowed with limited options, and anti-VEGF agents stand as the dominantly employed therapy. Despite the proven efficacy of such agents, the evidenced side effects associated with their use underscore the need to elucidate other mechanisms involved and identify additional molecular targets for the sake of therapy improvement. The previous literature provided us with a solid rationale to preliminarily explore the potential of selective HDAC6 and HSP90 inhibitors to treat wet AMD. Rather than furnishing single-target agents (either HDAC6 or HSP90 inhibitor), this study recruited scaffolds endowed with the ability to concomitantly modulate both targets (HDAC6 and HSP90) for exploration. This plan was anticipated to accomplish the important goal of extracting amplified benefits via dual inhibition (HDAC6/HSP90) in wet AMD. As a result, G570 (indoline-based hydroxamate), a dual selective HDAC6-HSP90 inhibitor exerting its effects at micromolar concentrations, was pinpointed in the present endeavor to attenuate blue light-induced cell migration and retinal neovascularization by inhibiting VEGF production. In addition to the identification of a potential chemical tool (G570), the outcome of this study validates the candidate HDAC6-HSP90 as a compelling target for the development of futuristic therapeutics for wet AMD.
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Affiliation(s)
- Tai-Ju Hsu
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
| | - Kunal Nepali
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
| | - Chi-Hao Tsai
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
- Department of Ophthalmology, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Zuha Imtiyaz
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
| | - Fan-Li Lin
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 100301, Taiwan; (F.-L.L.); (G.H.)
| | - George Hsiao
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 100301, Taiwan; (F.-L.L.); (G.H.)
| | - Mei-Jung Lai
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan
- Biomedical Commercialization Center, Taipei Medical University, Taipei 100301, Taiwan
| | - Yu-Wen Cheng
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan; (T.-J.H.); (K.N.); (C.-H.T.); (Z.I.)
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 100301, Taiwan
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Zhang Z, Ma X, Xia T, Wu Y, Shi S, Lei L, Li X, Chen H, Lin D. A Novel Indomethacin-Tripeptide Hydrogel for Inhibiting Ocular Inflammation. J Biomed Nanotechnol 2021; 17:1417-1425. [PMID: 34446144 DOI: 10.1166/jbn.2021.3118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A highly efficient method for constructing indomethacin-peptide conjugates was developed using the natural amino acid tyrosine (Y) as the anchor for indomethacin (Idm). With pH = 6, Idm-YEE conjugate self-assembled in a low critical micelle concentration (CMC, 0.037 mg/mL) and formed a transparent hydrogel (0.4 wt%). The formed Idm-YEE hydrogel presented sustained drug release of indomethacin with a maximum of 40% during first 24 hours, which was superior to the reported Idm-containing supramolecular hydrogel systems. As kept at 4 °C, the Idm-YEE hydrogel showed good storage stability up to 30 days without obvious hydrolysis. As shown by MTT assay, the Idm-YEE hydrogel exhibited good cell compatibility against retinal pigment epithelial cells (ARPE-19) and Human corneal epithelial cells (HCEC). Ocular irritation test (i.e., clinical observations, fluorescein staining and H&E histological analysis) results showed good integrity of corneal architecture and no edema after Idm-YEE hydrogel treatment, which proved its good ocular biocompatibility. Besides, the LPS-stimulated levels of key inflammatory mediators, including NO, PGE₂ and IL-6, were greatly reduced by Idm-YEE hydrogel even in a low concentration (50 μM) in Raw264.7 cells, which indicated its comparable in vitro anti-inflammatory activity to indomethacin. Furthermore, the therapeutic efficacy of Idm-YEE hydrogel was evaluated in endotoxin-induced uveitis (EIU) rabbit model. By treating with dm-YEE hydrogel, the rabbit eyes had significantly lowered inflammation and exudation in the anterior chamber. The results of histological analysis, clinical score, inflammatory cell counts, aqueous protein concentration and immunohistochemical staining also demonstrated its good in vivo therapeutic activity towards ocular inflammation. Therefore, with good ocular biocompatibility and comparable anti-inflammatory effect towards ocular inflammation, the novel indomethacin-tripeptide hydrogel (Idm-YEE) developed in this work provides a potential treatment for anterior uveitis.
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Affiliation(s)
- Zhiyong Zhang
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| | - Xiaofang Ma
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| | - Tian Xia
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| | - Yuqin Wu
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| | - Shuai Shi
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| | - Lei Lei
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| | - Xingyi Li
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| | - Hao Chen
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
| | - Deqing Lin
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, P. R. China
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Corelli F. Has a "Chemical Magic" Opened up New Prospects for Glaucoma? J Med Chem 2021; 64:8101-8103. [PMID: 34019766 DOI: 10.1021/acs.jmedchem.1c00843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chemical modification of the prototype CB1R ago-PAM, GAT211, yielded new CB1R allosteric modulators (-)-(S,R)-13 and (+)-(R,S)-14, which showed significant bias for CB1R signaling pathways, as supported by docking studies. Compound 14 efficiently lowered elevated intraocular pressure when it is due to an increase in endocannabinoid tone. This article may open new avenues to meet the therapeutic needs presented by glaucoma.
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Affiliation(s)
- Federico Corelli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
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28
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Mincione F, Nocentini A, Supuran CT. Advances in the discovery of novel agents for the treatment of glaucoma. Expert Opin Drug Discov 2021; 16:1209-1225. [PMID: 33914670 DOI: 10.1080/17460441.2021.1922384] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Glaucoma, a neuropathy characterized by increased intraocular pressure (IOP), is the major cause of blindness worldwide and its treatment aims at reducing IOP. AREAS COVERED The authors review the design of the main classes of anti-glaucoma agents. Drugs which interfere with the aqueous humor secretion (adrenergic agonists/antagonists, carbonic anhydrase inhibitors) and with its outflow, by means of both conventional and non-conventional pathways (prostaglandin (PG) analogs, rho kinase inhibitors, nitric oxide (NO) donors) as well as new agents (adenosine receptors modulators, melatonin - fatty acid amide hydrolase hybrids, tyrosine kinase activators, natriuretic peptide analogs) are considered. EXPERT OPINION The anti-glaucoma drug field has undergone several developments in recent years with the approval of at least three new drugs belonging to novel pharmacological classes, the rho kinase inhibitors ripasudil and netarsudil, and the PG-NO donor hybrid latanoprostene bunod. Eye drops with combinations of two different drugs are also available, allowing for effective IOP control, with once daily administration for some of them, which assures a better patient compliance and ease of administration. Overall, after more than a decade without new anti-glaucoma drugs, the last year afforded interesting new pharmacological opportunities for the management of this disease.
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Affiliation(s)
- Francesco Mincione
- U.O. Oculistica Az. USL 3, Val Di Nievole, Ospedale Di Pescia, Pescia, Italy
| | - Alessio Nocentini
- Università Degli Studi Di Firenze, NEUROFARBA Department, Sezione Di Scienze Farmaceutiche E Nutraceutiche, Sesto Fiorentino (Firenze), Italy
| | - Claudiu T Supuran
- Università Degli Studi Di Firenze, NEUROFARBA Department, Sezione Di Scienze Farmaceutiche E Nutraceutiche, Sesto Fiorentino (Firenze), Italy
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29
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Lorenzo-Veiga B, Alvarez-Lorenzo C, Loftsson T, Sigurdsson HH. Age-related ocular conditions: Current treatments and role of cyclodextrin-based nanotherapies. Int J Pharm 2021; 603:120707. [PMID: 33991594 DOI: 10.1016/j.ijpharm.2021.120707] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 02/03/2023]
Abstract
Age-related eye disorders are chronic diseases that affect millions of people worldwide. They cause visual impairment and, in some cases, irreversible blindness. Drug targeting to the retina is still a challenge due to the difficulties with drug distribution, crossing eye barriers, and reaching intraocular tissues in an effective therapeutic concentration. Although intravitreal injections can directly deliver drugs to the posterior segment of the eye, it remains an invasive technique and leads to several side effects. Conventional formulations such as emulsions, suspensions, or ointments have been related to frequent instillation and inability to reach intraocular tissues. New drug delivery systems and medical devices have also been designed. Nevertheless, these treatments are not always effective and sometimes require the presence of a specialist for the administration of the dose. Therefore, treatments for age-related ocular diseases remain as one of the major unmet clinical needs to manage these widespread eye conditions. Nanotechnology may become the adequate tool for developing effective and non-invasive therapies suitable for self-administration. In this review, we discuss emerging therapeutic options based on nanoengineering of cyclodextrin nanocarriers for the treatment of age-related eye disorders, including their pathophysiology, pharmacological options, and feasibility of clinical translation.
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Affiliation(s)
- Blanca Lorenzo-Veiga
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland.
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D-Farma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Thorsteinn Loftsson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland.
| | - Hakon Hrafn Sigurdsson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland.
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30
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Sabnis RW. Novel Heterobicyclic Carboxamides for Treating Eye Diseases. ACS Med Chem Lett 2021; 12:692-693. [PMID: 34055212 DOI: 10.1021/acsmedchemlett.1c00207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Indexed: 11/29/2022] Open
Affiliation(s)
- Ram W. Sabnis
- Smith, Gambrell & Russell LLP, 1230 Peachtree Street NE, Suite 3100, Atlanta, Georgia 30309, United States
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31
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Kim D, Choi SW, Cho J, Been JH, Choi K, Jiang W, Han J, Oh J, Park C, Choi S, Seo S, Kim KL, Suh W, Lee SK, Kim S. Discovery of Novel Small-Molecule Antiangiogenesis Agents to Treat Diabetic Retinopathy. J Med Chem 2021; 64:5535-5550. [PMID: 33902285 DOI: 10.1021/acs.jmedchem.0c01965] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Diabetic retinopathy is the leading cause of blindness which is associated with excessive angiogenesis. Using the structure of wondonin marine natural products, we previously created a scaffold to develop a novel type of antiangiogenesis agent that possesses minimized cytotoxicity. To overcome its poor pharmaceutical properties, we further modified the structure. A new scaffold was derived in which the stereogenic carbon was changed to nitrogen and the 1,2,3-triazole ring was replaced by an alkyl chain. By comparing the bioactivity versus cytotoxicity, compound 31 was selected, which has improved aqueous solubility and an enhanced selectivity index. Mechanistically, 31 suppressed angiopoietin-2 (ANGPT2) expression induced by high glucose in retinal cells and exhibited in vivo antiangiogenic activity in choroidal neovascularization and oxygen-induced retinopathy mouse models. These results suggest the potential of 31 as a lead to develop antiangiogenic small-molecule drugs to treat diabetic retinopathy and as a chemical tool to elucidate new mechanisms of angiogenesis.
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Affiliation(s)
- Donghwa Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Sang Won Choi
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jihee Cho
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jae-Hui Been
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Kyoungsun Choi
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Wenzhe Jiang
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jaeho Han
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Jedo Oh
- Hana Pharmaceutical Co., Pangyo 13486, Korea
| | | | | | - Songyi Seo
- Department of Global Innovative Drug, Graduate School of Chung-Ang University, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Koung Li Kim
- Department of Global Innovative Drug, Graduate School of Chung-Ang University, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Wonhee Suh
- Department of Global Innovative Drug, Graduate School of Chung-Ang University, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Sang Kook Lee
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
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Peptidomimetics Therapeutics for Retinal Disease. Biomolecules 2021; 11:biom11030339. [PMID: 33668179 PMCID: PMC7995992 DOI: 10.3390/biom11030339] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/11/2021] [Accepted: 02/20/2021] [Indexed: 12/28/2022] Open
Abstract
Ocular disorders originating in the retina can result in a partial or total loss of vision, making drug delivery to the retina of vital importance. However, effectively delivering drugs to the retina remains a challenge for ophthalmologists due to various anatomical and physicochemical barriers in the eye. This review introduces diverse administration routes and the accordant pharmacokinetic profiles of ocular drugs to aid in the development of safe and efficient drug delivery systems to the retina with a focus on peptidomimetics as a growing class of retinal drugs, which have great therapeutic potential and a high degree of specificity. We also discuss the pharmacokinetic profiles of small molecule drugs due to their structural similarity to small peptidomimetics. Lastly, various formulation strategies are suggested to overcome pharmacokinetic hurdles such as solubility, retention time, enzymatic degradation, tissue targeting, and membrane permeability. This knowledge can be used to help design ocular delivery platforms for peptidomimetics, not only for the treatment of various retinal diseases, but also for the selection of potential peptidomimetic drug targets.
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33
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Spinozzi E, Baldassarri C, Acquaticci L, Del Bello F, Grifantini M, Cappellacci L, Riccardo P. Adenosine receptors as promising targets for the management of ocular diseases. Med Chem Res 2021; 30:353-370. [PMID: 33519168 PMCID: PMC7829661 DOI: 10.1007/s00044-021-02704-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 12/01/2020] [Indexed: 12/15/2022]
Abstract
The ocular drug discovery arena has undergone a significant improvement in the last few years culminating in the FDA approvals of 8 new drugs. However, despite a large number of drugs, generics, and combination products available, it remains an urgent need to find breakthrough strategies and therapies for tackling ocular diseases. Targeting the adenosinergic system may represent an innovative strategy for discovering new ocular therapeutics. This review focused on the recent advance in the field and described the numerous nucleoside and non-nucleoside modulators of the four adenosine receptors (ARs) used as potential tools or clinical drug candidates.
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Affiliation(s)
- Eleonora Spinozzi
- School of Pharmacy Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy
| | - Cecilia Baldassarri
- School of Pharmacy Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy
| | - Laura Acquaticci
- School of Pharmacy Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy
| | - Fabio Del Bello
- School of Pharmacy Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy
| | - Mario Grifantini
- School of Pharmacy Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy
| | - Loredana Cappellacci
- School of Pharmacy Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy
| | - Petrelli Riccardo
- School of Pharmacy Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy
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Mobaraki M, Soltani M, Zare Harofte S, L. Zoudani E, Daliri R, Aghamirsalim M, Raahemifar K. Biodegradable Nanoparticle for Cornea Drug Delivery: Focus Review. Pharmaceutics 2020; 12:E1232. [PMID: 33353013 PMCID: PMC7765989 DOI: 10.3390/pharmaceutics12121232] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 11/25/2020] [Accepted: 12/04/2020] [Indexed: 12/15/2022] Open
Abstract
During recent decades, researchers all around the world have focused on the characteristic pros and cons of the different drug delivery systems for cornea tissue change for sense organs. The delivery of various drugs for cornea tissue is one of the most attractive and challenging activities for researchers in biomaterials, pharmacology, and ophthalmology. This method is so important for cornea wound healing because of the controllable release rate and enhancement in drug bioavailability. It should be noted that the delivery of various kinds of drugs into the different parts of the eye, especially the cornea, is so difficult because of the unique anatomy and various barriers in the eye. Nanoparticles are investigated to improve drug delivery systems for corneal disease. Biodegradable nanocarriers for repeated corneal drug delivery is one of the most attractive and challenging methods for corneal drug delivery because they have shown acceptable ability for this purpose. On the other hand, by using these kinds of nanoparticles, a drug could reside in various part of the cornea for longer. In this review, we summarized all approaches for corneal drug delivery with emphasis on the biodegradable nanoparticles, such as liposomes, dendrimers, polymeric nanoparticles, niosomes, microemulsions, nanosuspensions, and hydrogels. Moreover, we discuss the anatomy of the cornea at first and gene therapy at the end.
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Affiliation(s)
- Mohammadmahdi Mobaraki
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran 15875‐4413, Iran;
- Translational Ophthalmology Research Center, Tehran University of Medical Science, Tehran 1417614411, Iran;
| | - Madjid Soltani
- Department of Electrical and Computer Engineering, Faculty of Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
- Faculty of Science, School of Optometry and Vision Science, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran 19967-15433, Iran; (S.Z.H.); (E.L.Z.); (R.D.)
- Centre for Biotechnology and Bioengineering (CBB), University of Waterloo, Waterloo, ON N2L 3G1, Canada
- Advanced Bioengineering Initiative Center, K. N. Toosi University of Technology, Tehran 1417614411, Iran
- Computational Medicine Center, K. N. Toosi University of Technology, Tehran 1417614411, Iran
| | - Samaneh Zare Harofte
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran 19967-15433, Iran; (S.Z.H.); (E.L.Z.); (R.D.)
| | - Elham L. Zoudani
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran 19967-15433, Iran; (S.Z.H.); (E.L.Z.); (R.D.)
| | - Roshanak Daliri
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran 19967-15433, Iran; (S.Z.H.); (E.L.Z.); (R.D.)
| | - Mohamadreza Aghamirsalim
- Translational Ophthalmology Research Center, Tehran University of Medical Science, Tehran 1417614411, Iran;
| | - Kaamran Raahemifar
- Faculty of Science, School of Optometry and Vision Science, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
- Data Science and Artificial Intelligence Program, College of Information Sciences and Technology (IST), Penn State University, State College, Pennsylvania, PA 16801, USA
- Department of Chemical Engineering, Faculty of Engineering, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, Canada
- Electrical and Computer Engineering Department, Sultan Qaboos University, Al-Khoud, Muscat 123, Oman
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35
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Gorantla S, Rapalli VK, Waghule T, Singh PP, Dubey SK, Saha RN, Singhvi G. Nanocarriers for ocular drug delivery: current status and translational opportunity. RSC Adv 2020; 10:27835-27855. [PMID: 35516960 PMCID: PMC9055630 DOI: 10.1039/d0ra04971a] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 07/07/2020] [Indexed: 12/13/2022] Open
Abstract
Ocular diseases have a significant effect on vision and quality of life. Drug delivery to ocular tissues is a challenge to formulation scientists. The major barriers to delivering drugs to the anterior and posterior segments include physiological barriers (nasolacrimal drainage, blinking), anatomical barriers (static and dynamic), efflux pumps and metabolic barriers. The static barriers comprise the different layers of the cornea, sclera, and blood–aqueous barriers whereas dynamic barriers involve conjunctival blood flow, lymphatic clearance and tear drainage. The tight junctions of the blood–retinal barrier (BRB) restrict systemically administered drugs from entering the retina. Nanocarriers have been found to be effective at overcoming the issues associated with conventional ophthalmic dosage forms. Various nanocarriers, including nanodispersion systems, nanomicelles, lipidic nanocarriers, polymeric nanoparticles, liposomes, niosomes, and dendrimers, have been investigated for improved permeation and effective targeted drug delivery to various ophthalmic sites. In this review, various nanomedicines and their application for ophthalmic delivery of therapeutics are discussed. Additionally, scale-up and clinical status are also addressed to understand the current scenario for ophthalmic drug delivery. Ocular diseases have a significant effect on vision and quality of life.![]()
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Affiliation(s)
- Srividya Gorantla
- Industrial Research Laboratory
- Department of Pharmacy
- Birla Institute of Technology and Science (BITS)
- India
| | - Vamshi Krishna Rapalli
- Industrial Research Laboratory
- Department of Pharmacy
- Birla Institute of Technology and Science (BITS)
- India
| | - Tejashree Waghule
- Industrial Research Laboratory
- Department of Pharmacy
- Birla Institute of Technology and Science (BITS)
- India
| | | | - Sunil Kumar Dubey
- Industrial Research Laboratory
- Department of Pharmacy
- Birla Institute of Technology and Science (BITS)
- India
| | - Ranendra N. Saha
- Industrial Research Laboratory
- Department of Pharmacy
- Birla Institute of Technology and Science (BITS)
- India
- Birla Institute of Technology & Science (BITS)
| | - Gautam Singhvi
- Industrial Research Laboratory
- Department of Pharmacy
- Birla Institute of Technology and Science (BITS)
- India
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