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Deissler HL, Busch C, Wolf A, Rehak M. Beovu, but not Lucentis impairs the function of the barrier formed by retinal endothelial cells in vitro. Sci Rep 2022; 12:12493. [PMID: 35864147 PMCID: PMC9304347 DOI: 10.1038/s41598-022-16770-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 07/15/2022] [Indexed: 11/09/2022] Open
Abstract
Because rare, but severe adverse effects, i.e. retinal vasculitis or retinal vein occlusion, have been observed after repetitive intravitreal injections of VEGF-A-binding single-chain variable fragment brolucizumab (Beovu), we investigated its possible impact on the barrier formed by immortalized bovine retinal endothelial cells (iBREC) in comparison to that of the VEGF-A-binding Fab fragment ranibizumab (Lucentis). As a measure of stability of the barrier formed by a confluent monolayer of iBREC, we determined the cell index over seven days by continuous electric cell-substrate impedance measurements: Beovu but not Lucentis indeed significantly lowered the cell index, evident about 1.5 days after its addition, pointing to barrier impairment. Early after addition of Beovu, amounts of the integrins α5 and β1-subunits of the fibronectin receptor-had changed in opposite ways, suggesting an effect on cell adhesion due to hindered dimer formation. After exposure for eight days to Beovu, levels of claudin-1-an essential part of the iBREC barrier-were significantly lower, less claudin-1 was located at the plasma membrane after exposure to the VEGF-A antagonist for five days. Beovu did not induce secretion of inflammatory cytokines or VEGF-A. Interestingly, polysorbate-80-component of Beovu-but not polysorbate-20-in Lucentis-slightly, but significantly lowered the cell index, also associated with reduced claudin-1 expression. In summary, our results indicate that Beovu changes the behavior of retinal endothelial cells, thus providing an alternative "non-immunological" explanation for the most relevant of observed side effects.
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Affiliation(s)
- Heidrun L Deissler
- Department of Ophthalmology, Ulm University Medical Center, Ulm, Germany. .,Department of Ophthalmology, Justus-Liebig-University Giessen, Friedrichstrasse 18, 35392, Giessen, Germany.
| | - Catharina Busch
- Department of Ophthalmology, University Hospital Leipzig, Leipzig, Germany
| | - Armin Wolf
- Department of Ophthalmology, Ulm University Medical Center, Ulm, Germany
| | - Matus Rehak
- Department of Ophthalmology, University Hospital Leipzig, Leipzig, Germany.,Department of Ophthalmology, Justus-Liebig-University Giessen, Friedrichstrasse 18, 35392, Giessen, Germany
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Nogueira NC, de Sá LLF, de Carvalho ALM. Nanostructured Lipid Carriers as a Novel Strategy for Topical Antifungal Therapy. AAPS PharmSciTech 2021; 23:32. [PMID: 34931256 DOI: 10.1208/s12249-021-02181-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/15/2021] [Indexed: 11/30/2022] Open
Abstract
Nanostructured lipid carriers (NLC) were developed as an alternative carrier system optimizing limitations found in topical treatments for superficial fungal infections, such as limited permeation through the skin. However, few published studies are focused on standardization and characterization of determinant variables of these lipid nanosystems' quality. Thus, this systematic review aims to compile information regarding the selection of lipids, surfactants, and preparation method that intimately relates to the final quality of this nanotechnology. For this, the search was carried with the following descriptors: 'nanostructured lipid carriers', 'topical', 'antifungal' separated by the Boolean operators 'and', present in the titles of the databases: Science Direct, Scopus and Pubmed. The review included experimental articles focused on the development of nanostructured lipid carriers targeted for topical application with antifungal activity, published from 2015 to 2021. Review articles, clinical studies, and studies on the development of other nanocarriers intended for other routes of administration were excluded from the study. The research included 26 articles, of which 58% were developed in India and Brazil, 53% published in the years 2019 and 2020. As for the selection of antifungal drugs incorporated into NLCs, the azole class had a preference over other classes, voriconazole being incorporated into 5 of the 26 developed NLC studied. It was also observed a predominance of medium chain triglycerides (MCT) as a liquid lipid and polysorbate 80 as a surfactant. Among other results, this review compiles the influences of each of the variables discussed in the quality parameters of NLCs, in order to guide future research involving the development of this technology. Graphical Abstract.
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Park HS, Byun Y, Byeon SH, Kim SS, Kim YJ, Lee CS. Retinal Hemorrhage after SARS-CoV-2 Vaccination. J Clin Med 2021; 10:5705. [PMID: 34884407 PMCID: PMC8658415 DOI: 10.3390/jcm10235705] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/01/2021] [Accepted: 12/03/2021] [Indexed: 01/08/2023] Open
Abstract
To report retinal vein occlusion (RVO) and age-related macular degeneration (AMD)-related submacular hemorrhage developing after administration of SARS-CoV-2 vaccines, a single-center, retrospective observational case series was conducted. Clinical data including fundus photographs and optical coherence tomography (OCT) scans were reviewed. Twenty-three eyes of 21 patients were included with the median age at symptom presentation being 77 years (range: 51-85 years). Twelve eyes (52.2%) had submacular hemorrhage and 11 (47.8%) had RVO. Twelve patients (60.9%) had been vaccinated with the Pfizer vaccine (BNT162b2) and 8 with the AstraZeneca (ChAdOx1) vaccine. Sixteen patients (76.2%) experienced ocular disease exacerbation after the first vaccination and 4 (19.0%) after the second vaccination. The median visual acuity (logarithm of the minimal angle of resolution; logMAR) before symptom development was 0.76 (interquartile range: 0.27-1.23); the median logMAR at symptom presentation was 1.40 (interquartile range 0.52-1.70). The median time between vaccination and symptom exacerbation was 2.0 days (interquartile range: 1.0-3.0 days). Five patients (23.8%) underwent tests for hematological abnormalities, including the presence of anti-PF4 antibodies; all were negative. Further studies with larger patient group for evaluation of effect of SARS-CoV-2 vaccination on retinal hemorrhage are necessary.
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Affiliation(s)
- Hyo Song Park
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul 03772, Korea; (H.S.P.); (S.H.B.); (S.S.K.)
| | | | - Suk Ho Byeon
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul 03772, Korea; (H.S.P.); (S.H.B.); (S.S.K.)
| | - Sung Soo Kim
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul 03772, Korea; (H.S.P.); (S.H.B.); (S.S.K.)
| | - Yong Joon Kim
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul 03772, Korea; (H.S.P.); (S.H.B.); (S.S.K.)
| | - Christopher Seungkyu Lee
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul 03772, Korea; (H.S.P.); (S.H.B.); (S.S.K.)
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Postay LF, Cabral DS, Heringer OA, Vieira LV, de Moraes LR, Freitas G, Gomes LC. The effectiveness of surfactants applied with essential oil of Lippia alba in the anesthesia of Nile tilapia (Oreochromis niloticus) and their toxicity assessment for fish and mammals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10224-10233. [PMID: 33174173 DOI: 10.1007/s11356-020-11483-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
The Lippia alba essential oil (EO) is a fish anesthetic immiscible in water and commonly used diluted in ethanol. We evaluated the effectiveness of surfactant use with Lippia alba EO in the anesthesia of Oreochromis niloticus, as well as its toxicity in fish and mammals. The EO was extracted by hydrodistillation and the fish were exposed to anesthesia at the concentration of 250 μL/L for 10 min with the surfactants polysorbate 20 (T20), polysorbate 80 (T80), polyethylene glycol (PEG), and ethanol. We also evaluated fish recovery and anesthetic safety margin after exposure for 10, 20, and 30 min. To assess the surfactants' toxicity in mammals, Mus musculus (mice) received the same treatments by gavage. The main constituents of the Lippia alba EO were linalool (42.36%), geraniol (12.46%), neral (10.7%), and limonene (7.45%). Deeper anesthesia was faster in the T20 (60 ± 2.9 s) and T80 (272 ± 21 s) treatment groups, while recovery time for T80 was longer (596 ± 47 s). All treatments showed a good safety margin, without mortality. The genotoxic effects caused by surfactants in mammals and fish were at similar levels to those found in the ethanol treatment. Therefore, this study demonstrated that the use of surfactants T20 and T80 in Oreochromis niloticus anesthesia presented neither a reduction nor a considerable increase of the toxicity when compared to the commonly used ethanol; however, an increase in anesthetic effectiveness was observed throughout the experiment.
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Affiliation(s)
- Laís Frigini Postay
- Universidade Vila Velha, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil
| | - Dandara Silva Cabral
- Universidade Vila Velha, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil
| | | | - Luiza Valli Vieira
- Universidade Federal de Espírito Santo, Avenida Fernando Ferrari 514, Goiabeiras, Vitória, ES, 29075-910, Brazil
| | - Lauro Roger de Moraes
- Universidade Vila Velha, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil
| | - Gabrieli Freitas
- Universidade Vila Velha, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil
| | - Levy Carvalho Gomes
- Universidade Vila Velha, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil.
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Tassew NG, Laing ST, Aaronson J, de Jong I, Schuetz C, Lorget F. Tolerability Assessment of Formulation pH in New Zealand White Rabbits Following Intravitreal Administration. Toxicol Pathol 2020; 49:605-609. [PMID: 33252028 DOI: 10.1177/0192623320969667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Development of intravitreal drugs presents several challenges due to the delicate ocular environment and volume constraints of what can be safely administered in the eye. Formulation development of intravitreally administered drugs may necessitate the use of nonphysiological pH in order to accommodate manufacturing processes or achieve favorable drug properties. Clinical and nonclinical data show that intravitreal drugs formulated in the pH 5.5 to 7.4 range are well tolerated. The aim of this study was to provide ocular toxicity data for formulations in the pH 4.0 to 5.5 range following intravitreal administration in New Zealand White rabbits. This range was evaluated as part of formulation development for an intravitreal drug that necessitated the use of pH outside the available tolerability data for formulations. Toxicity was assessed by ophthalmic examinations, intraocular pressure (IOP) measurement, clinical observations, body weights, and microscopic analysis of ocular tissue. Histidine chloride pH 5.0 to 5.5 and acetate chloride pH 4.0 to 5.0 solutions were well tolerated, and no test article-related ocular inflammation, IOP changes, or gross or microscopic findings were observed in any eye. The data presented here add to the knowledge of pH ranges that can be explored for intravitreal drug formulation development.
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Affiliation(s)
- Nardos G Tassew
- Safety Assessment, 7412Genentech, South San Francisco, CA, USA
| | - Steven T Laing
- Safety Assessment, 7412Genentech, South San Francisco, CA, USA
| | | | - Isabella de Jong
- Pharm Dev, Genentech, South San Francisco, CA, USA. Lorget is now with Sangamo Therapeutics, Brisbane, CA, USA. Aaronson is now with 99373Ascendis Pharma A/S, Palo Alto, CA, USA
| | - Chris Schuetz
- Safety Assessment, 7412Genentech, South San Francisco, CA, USA
| | - Florence Lorget
- Safety Assessment, 7412Genentech, South San Francisco, CA, USA
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Durmaz Engin C, Cilaker Miçili S, Yilmaz O, Bağriyanik HA, Ergür BU, Önen F, Saatci AO. Ocular toxicity of intravitreal golimumab in a rabbit model. Turk J Med Sci 2020; 50:1111-1122. [PMID: 32151118 PMCID: PMC7379407 DOI: 10.3906/sag-1911-11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 03/05/2020] [Indexed: 01/13/2023] Open
Abstract
Background/aim To investigate the effect of intravitreal golimumab on rabbit retina histopathology. Materials and methods Sixteen albino New Zealand rabbits were divided into three groups. The right eye of each rabbit in groups I, II, and III received a single intravitreal injection of 5 mg/0.05 mL (6 eyes), 10 mg/0.1 mL (6 eyes), or 20 mg/0.2 mL (4 eyes) golimumab, while left eyes served as controls with the same volume of a balanced salt solution injection. All animals were examined using slit-lamp biomicroscopy and indirect ophthalmoscopy before and after intravitreal injection and at days 1 and 7. Animals were euthanized on day 7 and the eyes were enucleated for immunohistochemistry evaluation and electron microscopic examination of the retinas. Results For groups I, II, and III, the number of cells in the outer nuclear layer and the inner nuclear layer was decreased compared to those in the control groups. In group I, the percentage of caspase-3 staining of the outer nuclear layer was significantly higher than that in the control. For groups II and III, TUNEL and caspase-3 staining percentages in the outer and inner nuclear layers were found to be significantly higher than those for the control groups. In the ganglion cell layer, for groups I, II, and III, neither TUNEL nor caspase-3 staining percentages showed any significant difference between two groups. No significant dose-dependent relationship was found for increasing doses of golimumab in all layers. Myelin figures and karyorrhexis in the photoreceptor cells were prominent in electron microscopy of the golimumab-injected eyes. Conclusion Golimumab caused apoptosis in both photoreceptors and bipolar cells of the rabbit retina. Potential retinal toxicity of intravitreal golimumab should be considered if an intravitreal administration is planned.
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Affiliation(s)
- Ceren Durmaz Engin
- Department of Ophthalmology, Karadeniz Ereğli State Hospital, Zonguldak, Turkey
| | - Serap Cilaker Miçili
- Department of Histology and Embryology, School of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Osman Yilmaz
- Department of Laboratory Animals Science, School of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Hüsnü Alper Bağriyanik
- Department of Histology and Embryology, School of Medicine, Dokuz Eylül University, İzmir, Turkey,İzmir Biomedicine and Genome Center (iBG), İzmir, Turkey
| | - Bekir Uğur Ergür
- Department of Histology and Embryology, School of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Fatoş Önen
- Department of Internal Medicine, Division of Rheumatology, School of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Ali Osman Saatci
- Department of Ophthalmology, School of Medicine, Dokuz Eylül University, İzmir, Turkey
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Jairam RK, Mallurwar SR, Gabani BB, Zakkula A, Kiran V, Dittakavi S, Sulochana SP, Mohd Z, Srinivas NR, Mullangi R. Uptake and pharmacokinetics of cefuroxime in rabbits after intravitreal, intracameral, and topical dosing: relevance to human ocular injection of cefuroxime. Xenobiotica 2019; 50:339-345. [PMID: 31144563 DOI: 10.1080/00498254.2019.1624872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cefuroxime is one of the widely used antibiotics. The objective of this study was to determine pharmacokinetics and disposition in various ocular tissues following topical (TOP), intracameral (IC) and intravitreal (IVT) administration of cefuroxime to rabbits.Following TOP, IC and IVT dosing plasma and various ocular tissues (aqueous humor (AH), vitreous humor (VH), conjunctiva, trabecular mesh (TM), lens and retina-choroid (RC)) were collected and analyzed to understand the disposition of cefuroxime. Postintravenous administration plasma samples were collected to determine the systemic pharmacokinetics.Post-TOP dosing cefuroxime concentrations were observed only in conjunctiva up to 48 h. IC administration showed cefuroxime concentrations in AH up to 8 h; in conjunctiva, TM and plasma, the concentration lasted up to 4 h and in RC and VH till 1 h. IVT administration of cefuroxime showed concentrations in all ocular tissues (up to 8 h) and lasted up to 48 h except in conjunctiva and RC.There was evidence that the mechanism(s) of cefuroxime entry into the eye by via IVT, IC and TOP routes is clearly different. The present ocular tissue data may aid clinicians for considering appropriate choice in the treatment of post-operative ocular complications due to bacterial infections including endophthalmitis.
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Affiliation(s)
- Ravi Kumar Jairam
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
| | - Sadanand R Mallurwar
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
| | - Bhavesh B Gabani
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
| | - Ashok Zakkula
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
| | - Vinay Kiran
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
| | - Sreekanth Dittakavi
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
| | - Suresh P Sulochana
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
| | - Zainuddin Mohd
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
| | | | - Ramesh Mullangi
- Drug Metabolism and Pharmacokinetics, Industrial Suburb, Yeshwanthpur, Bangalore, India
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