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Santana-Garrido Á, Durán-Lobato M, Mate A, Martín-Banderas L, Vázquez CM. Ophthalmic wild olive (ACEBUCHE) oil nanoemulsions exert oculoprotective effects against oxidative stress induced by arterial hypertension. Int J Pharm 2024; 649:123602. [PMID: 37967686 DOI: 10.1016/j.ijpharm.2023.123602] [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: 06/29/2023] [Revised: 11/07/2023] [Accepted: 11/11/2023] [Indexed: 11/17/2023]
Abstract
Oxidative stress plays a key role in several systemic and ocular diseases, including hypertensive eye diseases. In this context, we previously showed that oral administration of wild olive (acebuche, ACE) oil from Olea europaea var. sylvestris can counteract ocular damage secondary to arterial hypertension by modulating excess reactive oxygen species (ROS) produced by the enzyme nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. Therefore, this work describes the development of an ACE oil-based formulation for ocular administration as a local therapy to counteract hypertension-related oxidative damage. Specifically, ACE oil nanoemulsions (NEs) were successfully produced and characterized, exhibiting appropriate features for ophthalmic administration, including a nanometer size (<200 nm), moderate negative ZP, adequate osmolality and pH, and colloidal stability in biorelevant fluids. Likewise, the NEs presented a shear thinning behavior, especially convenient for ocular instillation. In vivo evaluation was performed through either intravitreal injection or topical ophthalmic administration in mice with hypertension induced via administration of Nω-nitro-L-arginine-methyl-ester (L-NAME). Both routes of administration reduced hypertensive morphological alterations and demonstrated a noticeable antioxidant effect thanks to the reduction of the activity/expression of NADPH oxidase in cornea and retina. Thus, an ACE oil ophthalmic formulation represent a promising therapy for ocular pathologies associated with arterial hypertension.
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Affiliation(s)
- Á Santana-Garrido
- Departamento de Fisiología, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain; Epidemiología Clínica y Riesgo Cardiovascular, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío - Consejo Superior de Investigaciones Científicas - Universidad de Sevilla. Avda. Manuel Siurot s/n, 41013 Sevilla, Spain
| | - M Durán-Lobato
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain
| | - A Mate
- Departamento de Fisiología, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain; Epidemiología Clínica y Riesgo Cardiovascular, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío - Consejo Superior de Investigaciones Científicas - Universidad de Sevilla. Avda. Manuel Siurot s/n, 41013 Sevilla, Spain.
| | - L Martín-Banderas
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain.
| | - C M Vázquez
- Departamento de Fisiología, Facultad de Farmacia, Universidad de Sevilla. CL Profesor García González 2, 41012 Sevilla, Spain; Epidemiología Clínica y Riesgo Cardiovascular, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío - Consejo Superior de Investigaciones Científicas - Universidad de Sevilla. Avda. Manuel Siurot s/n, 41013 Sevilla, Spain
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2
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Alcalde I, Sánchez-Fernández C, Del Olmo-Aguado S, Martín C, Olmiere C, Artime E, Quirós LM, Merayo-Lloves J. Synthetic Heparan Sulfate Mimetic Polymer Enhances Corneal Nerve Regeneration and Wound Healing after Experimental Laser Ablation Injury in Mice. Polymers (Basel) 2022; 14:polym14224921. [PMID: 36433048 PMCID: PMC9694493 DOI: 10.3390/polym14224921] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Abnormal corneal wound healing compromises visual acuity and can lead to neuropathic pain. Conventional treatments usually fail to restore the injured corneal tissue. In this study, we evaluated the effectiveness of a synthetic heparan sulfate mimetic polymer (HSmP) in a mouse model of corneal wound healing. (2) Methods: A surgical laser ablation affecting the central cornea and subbasal nerve plexus of mice was used as a model of the wound-healing assay. Topical treatment with HSmP was contrasted to its vehicle and a negative control (BSS). Corneal repair was studied using immunofluorescence to cell proliferation (Ki67), apoptosis (TUNEL assay), myofibroblast transformation (αSMA), assembly of epithelial cells (E-cadherin) and nerve regeneration (β-tubulin III). (3) Results: At the end of the treatment, normal epithelial cytoarchitecture and corneal thickness were achieved in HSmP-treated animals. HSmP treatment reduced myofibroblast occurrence compared to eyes irrigated with vehicle (p < 0.01) or BSS (p < 0.001). The HSmP group showed 50% more intraepithelial nerves than the BSS or vehicle groups. Only HSmP-treated corneas improved the visual quality to near transparent. (4) Conclusions: These results suggest that HSmP facilitates the regeneration of the corneal epithelium and innervation, as well as restoring transparency and reducing myofibroblast scarring after laser experimental injury.
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Affiliation(s)
- Ignacio Alcalde
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Correspondence:
| | - Cristina Sánchez-Fernández
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Susana Del Olmo-Aguado
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Carla Martín
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain
| | - Céline Olmiere
- Laboratoires Thea S.A.S., 63000 Clermont-Ferrand, France
| | - Enol Artime
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Luis M. Quirós
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain
| | - Jesús Merayo-Lloves
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
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3
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Kaiser P, Wächter J, Windbergs M. Therapy of infected wounds: overcoming clinical challenges by advanced drug delivery systems. Drug Deliv Transl Res 2021; 11:1545-1567. [PMID: 33611768 PMCID: PMC8236057 DOI: 10.1007/s13346-021-00932-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2021] [Indexed: 12/12/2022]
Abstract
In recent years, the incidence of infected wounds is steadily increasing, and so is the clinical as well as economic interest in effective therapies. These combine reduction of pathogen load in the wound with general wound management to facilitate the healing process. The success of current therapies is challenged by harsh conditions in the wound microenvironment, chronicity, and biofilm formation, thus impeding adequate concentrations of active antimicrobials at the site of infection. Inadequate dosing accuracy of systemically and topically applied antibiotics is prone to promote development of antibiotic resistance, while in the case of antiseptics, cytotoxicity is a major problem. Advanced drug delivery systems have the potential to enable the tailor-made application of antimicrobials to the side of action, resulting in an effective treatment with negligible side effects. This review provides a comprehensive overview of the current state of treatment options for the therapy of infected wounds. In this context, a special focus is set on delivery systems for antimicrobials ranging from semi-solid and liquid formulations over wound dressings to more advanced carriers such as nano-sized particulate systems, vesicular systems, electrospun fibers, and microneedles, which are discussed regarding their potential for effective therapy of wound infections. Further, established and novel models and analytical techniques for preclinical testing are introduced and a future perspective is provided.
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Affiliation(s)
- Pia Kaiser
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, 60438, Frankfurt am Main, Germany
| | - Jana Wächter
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, 60438, Frankfurt am Main, Germany
| | - Maike Windbergs
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, 60438, Frankfurt am Main, Germany.
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Carboxymethyl-β-glucan/chitosan nanoparticles: new thermostable and efficient carriers for antigen delivery. Drug Deliv Transl Res 2021; 11:1689-1702. [PMID: 33797035 PMCID: PMC8015750 DOI: 10.1007/s13346-021-00968-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2021] [Indexed: 12/18/2022]
Abstract
In the last few decades, nanotechnology has emerged as an important tool aimed at enhancing the immune response against modern antigens. Nanocarriers designed specifically for this purpose have been shown to provide protection, stability, and controlled release properties to proteins, peptides, and polynucleotide-based antigens. Polysaccharides are particularly interesting biomaterials for the construction of these nanocarriers given their wide distribution among pathogens, which facilitates their recognition by antigen-presenting cells (APCs). In this work, we focused on an immunostimulant beta-glucan derivative, carboxymethyl-β-glucan, to prepare a novel nanocarrier in combination with chitosan. The resulting carboxymethyl-β-glucan/chitosan nanoparticles exhibited adequate physicochemical properties and an important protein association efficiency, with ovalbumin as a model compound. Moreover, thermostability was achieved through the optimization of a lyophilized form of the antigen-loaded nanoparticles, which remained stable for up to 1 month at 40 ºC. Biodistribution studies in mice showed an efficient drainage of the nanoparticles to the nearest lymph node following subcutaneous injection, and a significant co-localization with dendritic cells. Additionally, subcutaneous immunization of mice with a single dose of the ovalbumin-loaded nanoparticles led to induced T cell proliferation and antibody responses, comparable to those achieved with alum-adsorbed ovalbumin. These results illustrate the potential of these novel nanocarriers in vaccination.
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Karabasz A, Bzowska M, Szczepanowicz K. Biomedical Applications of Multifunctional Polymeric Nanocarriers: A Review of Current Literature. Int J Nanomedicine 2020; 15:8673-8696. [PMID: 33192061 PMCID: PMC7654520 DOI: 10.2147/ijn.s231477] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/06/2020] [Indexed: 12/14/2022] Open
Abstract
Polymeric nanomaterials have become a prominent area of research in the field of drug delivery. Their application in nanomedicine can improve bioavailability, pharmacokinetics, and, therefore, the effectiveness of various therapeutics or contrast agents. There are many studies for developing new polymeric nanocarriers; however, their clinical application is somewhat limited. In this review, we present new complex and multifunctional polymeric nanocarriers as promising and innovative diagnostic or therapeutic systems. Their multifunctionality, resulting from the unique chemical and biological properties of the polymers used, ensures better delivery, and a controlled, sequential release of many different therapeutics to the diseased tissue. We present a brief introduction of the classical formulation techniques and describe examples of multifunctional nanocarriers, whose biological assessment has been carried out at least in vitro. Most of them, however, also underwent evaluation in vivo on animal models. Selected polymeric nanocarriers were grouped depending on their medical application: anti-cancer drug nanocarriers, nanomaterials delivering compounds for cancer immunotherapy or regenerative medicine, components of vaccines nanomaterials used for topical application, and lifestyle diseases, ie, diabetes.
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Affiliation(s)
- Alicja Karabasz
- Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Monika Bzowska
- Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Krzysztof Szczepanowicz
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Kraków, Poland
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Anitua E, de la Fuente M, Alcalde I, Sanchez C, Merayo-Lloves J, Muruzabal F. Development and Optimization of Freeze-Dried Eye Drops Derived From Plasma Rich in Growth Factors Technology. Transl Vis Sci Technol 2020; 9:35. [PMID: 32832240 PMCID: PMC7414653 DOI: 10.1167/tvst.9.7.35] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 05/02/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose To investigate whether plasma rich in growth factors (PRGF) eye drops maintain their biological potential after a freeze drying process. The addition of a lyoprotectant like trehalose was also evaluated. Methods Blood from three healthy donors was collected to obtain eye drops by PRGF technology. The resultant eye drops were divided in four groups: PRGF, freeze-dried PRGF (PRGF lyo), and PRGF lyophilized mixed with 2,5% trehalose (PRGF lyo+2.5T) or 5% trehalose (PRGF lyof+5T). Chemical and biological characteristics were evaluated. Photorefractive keratectomy was performed on C57BL/6 mice which were divided in three treatment groups: control, PRGF, and PRGF lyo. Corneal wound healing and haze formation were evaluated macroscopically. Eyes were collected at 1, 2, 3, and 7 days after surgery, and were processed for histologic studies. Results The pH values of PRGF samples increased significantly after the lyophilization process. Osmolarity levels increased significantly in PRGF samples mixed with trehalose in comparison with PRGF samples without protectants. The freeze drying process maintained growth factors levels as well as the biological properties of PRGF eye drops even without the use of lyoprotectants. PRGF lyo treatment significantly decreased the re-epithelialization time and haze formation in photorefractive keratectomy-treated corneas regarding PRGF and control groups. Furthermore, the PRGF lyo group significantly decreased the number of smooth muscle actin-positive cells in comparison with the control group at each time of the study and at days 2 and 3 in the PRGF group. Conclusions The freeze drying process preserves the protein and growth factor content as well as the biological properties of PRGF eye drops, even without the use of protectants. Freeze-dried PRGF eye drops accelerate corneal tissue regeneration after photorefractive keratectomy in comparison with the control group. Translational Relevance Our study shows the feasibility to preserve the biological capability of PRGF eye drops as freeze-dried formulation, avoiding the addition of protectants.
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Affiliation(s)
- Eduardo Anitua
- Biotechnology Institute (BTI), Vitoria, Spain.,University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
| | - María de la Fuente
- Biotechnology Institute (BTI), Vitoria, Spain.,University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
| | - Ignacio Alcalde
- Instituto Oftalmológico Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Oviedo, Spain
| | - Cristina Sanchez
- Instituto Oftalmológico Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Oviedo, Spain
| | - Jesús Merayo-Lloves
- Instituto Oftalmológico Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Oviedo, Spain
| | - Francisco Muruzabal
- Biotechnology Institute (BTI), Vitoria, Spain.,University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
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7
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Robla S, Alonso MJ, Csaba NS. Polyaminoacid-based nanocarriers: a review of the latest candidates for oral drug delivery. Expert Opin Drug Deliv 2020; 17:1081-1092. [DOI: 10.1080/17425247.2020.1776698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sandra Robla
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - Maria José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - Noemi S. Csaba
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
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8
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Topical antimicrobial peptide formulations for wound healing: Current developments and future prospects. Acta Biomater 2020; 103:52-67. [PMID: 31874224 DOI: 10.1016/j.actbio.2019.12.025] [Citation(s) in RCA: 194] [Impact Index Per Article: 48.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/16/2019] [Accepted: 12/18/2019] [Indexed: 12/20/2022]
Abstract
Antimicrobial peptides (AMPs) are the natural antibiotics recognized for their potent antibacterial and wound healing properties. Bare AMPs have limited activity following topical application attributable to their susceptibility to environment (hydrolysis, oxidation, photolysis), and wound (alkaline pH, proteolysis) related factors as well as minimal residence time. Therefore, the formulation of AMPs is essential to enhance stability, prolong delivery, and optimize effectiveness at the wound site. Different topical formulations of AMPs have been developed so far including nanoparticles, hydrogels, creams, ointments, and wafers to aid in controlling bacterial infection and enhance wound healing process in vivo. Herein, an overview is provided of the AMPs and current understanding of their formulations for topical wound healing applications along with suitable examples. Furthermore, future prospects for the development of effective combination AMP formulations are discussed. STATEMENT OF SIGNIFICANCE: Chronic wound infection and subsequent development of antibiotic resistance are serious clinical problems affecting millions of people worldwide. Antimicrobial peptides (AMPs) possess great potential in effectively killing the bacteria with minimal risk of resistance development. However, AMPs susceptibility to degradation following topical application limits their antimicrobial and wound healing effects. Therefore, development of an optimized topical formulation with high peptide stability and sustained AMP delivery is necessary to maximize the antimicrobial and wound healing effects. The present review provides an overview of the state-of-art in the field of topical AMP formulations for wound healing. Current developments in the field of topical AMP formulations are reviewed and future prospects for the development of effective combination AMP formulations are discussed.
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9
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Wang Z, Shan W, Li H, Feng J, Lu S, Ou B, Ma M, Ma Y. The PACAP-derived peptide MPAPO facilitates corneal wound healing by promoting corneal epithelial cell proliferation and trigeminal ganglion cell axon regeneration. Int J Biol Sci 2019; 15:2676-2691. [PMID: 31754339 PMCID: PMC6854382 DOI: 10.7150/ijbs.35630] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 08/12/2019] [Indexed: 01/08/2023] Open
Abstract
It is well known that the cornea plays an important role in providing protection to the eye, but it is fragile and vulnerable. To clarify the biological effects and molecular mechanisms of the pituitary adenylate cyclase activating polypeptide (PACAP)-derived peptide MPAPO (named MPAPO) to promote corneal wound healing, we applied a mechanical method to establish a corneal injury model and analyzed the repair effects of MPAPO on corneal injury. MPAPO significantly promoted corneal wound repair in C57BL/6 mice. In addition, we established injury models of epithelial cells and trigeminal ganglion cells with H2O2. The results show that when the concentration of MPAPO is 1 μM, it can significantly promote the repair of injured corneal epithelial cells and the regeneration of trigeminal ganglion cell axons. MPAPO repairs epithelial cells through the promotion of GSK3β phosphorylation by binding to PAC1 and activating AKT. β-catenin escapes the phosphorylation of GSK3β and enters the nucleus to promote the expression of cyclin D1, accelerate cell cycle progression and promote cell proliferation. MPAPO promotes axonal regeneration by binding to the PAC1 receptor and activating adenylate cyclase activity, followed by the cAMP activation of protein kinase A activity and the promotion of CREB phosphorylation. Phosphorylated CREB promotes Bcl2 expression and axonal regeneration. In conclusion, our data support the role of MPAPO to facilitate corneal wound healing by promoting corneal epithelial cell proliferation and trigeminal ganglion cell axon regeneration.
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Affiliation(s)
- Zixian Wang
- Institute of Biomedicine, Department of Cellular Biology, Jinan University.,National engineering research center of genetic Medicine, Key laboratory of Bioengineering Medicine of Guangdong Province, Jinan University
| | - Wailan Shan
- Institute of Biomedicine, Department of Cellular Biology, Jinan University.,National engineering research center of genetic Medicine, Key laboratory of Bioengineering Medicine of Guangdong Province, Jinan University
| | - Huixian Li
- Institute of Biomedicine, Department of Cellular Biology, Jinan University.,National engineering research center of genetic Medicine, Key laboratory of Bioengineering Medicine of Guangdong Province, Jinan University
| | - Jia Feng
- Institute of Biomedicine, Department of Cellular Biology, Jinan University.,National engineering research center of genetic Medicine, Key laboratory of Bioengineering Medicine of Guangdong Province, Jinan University
| | - Shiyin Lu
- Institute of Biomedicine, Department of Cellular Biology, Jinan University.,National engineering research center of genetic Medicine, Key laboratory of Bioengineering Medicine of Guangdong Province, Jinan University
| | - Biqian Ou
- Institute of Biomedicine, Department of Cellular Biology, Jinan University.,National engineering research center of genetic Medicine, Key laboratory of Bioengineering Medicine of Guangdong Province, Jinan University
| | - Min Ma
- College of traditional Chinese Medicine, Jinan University
| | - Yi Ma
- Institute of Biomedicine, Department of Cellular Biology, Jinan University.,National engineering research center of genetic Medicine, Key laboratory of Bioengineering Medicine of Guangdong Province, Jinan University
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10
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Reimondez-Troitiño S, González-Aramundiz JV, Ruiz-Bañobre J, López-López R, Alonso MJ, Csaba N, de la Fuente M. Versatile protamine nanocapsules to restore miR-145 levels and interfere tumor growth in colorectal cancer cells. Eur J Pharm Biopharm 2019; 142:449-459. [PMID: 31326581 DOI: 10.1016/j.ejpb.2019.07.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/28/2019] [Accepted: 07/15/2019] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) play a key role on gene expression regulation contributing to cell homeostasis, and they are highly dysregulated in cancer. Consequently, miRNA-based therapies are an attractive approach to develop novel anticancer strategies. The main objective of this work was to explore the full potential of protamine nanocapsules (Pr NCs) to develop an anticancer therapy based on the restoration of oncosuppressor miR-145, downregulated in colorectal cancer cells. The composition of Pr NCs was defined based on the selection of surfactants, and protamine that would enable an efficient association and intracellular delivery of miRNA mimics according to the layer-by-layer approach, and the encapsulation of curcumin within the oily core. After exposure of colorectal cancer cells with (i) miR-145 and (ii) curcumin-loaded Pr NCs, a strong increase in the intracellular levels of miR-145, which translated into a decreased cell proliferation rate and migration capacity of the treated cells, was observed. The potential of exploiting Pr NCs for the co-delivery of both biomolecules, miRNAs and curcumin, has also been proved. All together, here we evaluate the possibility to use Pr NCs to efficiently increase the intracellular levels of the oncosuppressor miR-145.
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Affiliation(s)
- Sonia Reimondez-Troitiño
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela, Spain; Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - José V González-Aramundiz
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain; Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, 7820436 Santiago, Chile
| | - Juan Ruiz-Bañobre
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela, Spain
| | - Rafael López-López
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela, Spain
| | - María J Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - Noemi Csaba
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain.
| | - María de la Fuente
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela, Spain.
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11
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Villamizar-Sarmiento MG, Moreno-Villoslada I, Martínez S, Giacaman A, Miranda V, Vidal A, Orellana SL, Concha M, Pavicic F, Lisoni JG, Leyton L, Oyarzun-Ampuero FA. Ionic Nanocomplexes of Hyaluronic Acid and Polyarginine to Form Solid Materials: A Green Methodology to Obtain Sponges with Biomedical Potential. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E944. [PMID: 31261871 PMCID: PMC6669755 DOI: 10.3390/nano9070944] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 02/06/2023]
Abstract
We report on the design, development, characterization, and a preliminary cellular evaluation of a novel solid material. This material is composed of low-molecular-weight hyaluronic acid (LMWHA) and polyarginine (PArg), which generate aqueous ionic nanocomplexes (INC) that are then freeze-dried to create the final product. Different ratios of LMWHA/PArg were selected to elaborate INC, the size and zeta potential of which ranged from 100 to 200 nm and +25 to -43 mV, respectively. Turbidimetry and nanoparticle concentration analyses demonstrated the high capacity of the INC to interact with increasing concentrations of LMWHA, improving the yield of production of the nanostructures. Interestingly, once the selected formulations of INC were freeze-dried, only those comprising a larger excess of LMWHA could form reproducible sponge formulations, as seen with the naked eye. This optical behavior was consistent with the scanning transmission electron microscopy (STEM) images, which showed a tendency of the particles to agglomerate when an excess of LMWHA was present. Mechanical characterization evidenced low stiffness in the materials, attributed to the low density and high porosity. A preliminary cellular evaluation in a fibroblast cell line (RMF-EG) evidenced the concentration range where swollen formulations did not affect cell proliferation (93-464 µM) at 24, 48, or 72 h. Considering that the reproducible sponge formulations were elaborated following inexpensive and non-contaminant methods and comprised bioactive components, we postulate them with potential for biomedical purposes. Additionally, this systematic study provides important information to design reproducible porous solid materials using ionic nanocomplexes.
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Affiliation(s)
- María Gabriela Villamizar-Sarmiento
- Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile
| | - Ignacio Moreno-Villoslada
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja, Casilla 567, Valdivia 5090000, Chile
| | - Samuel Martínez
- Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile
| | - Annesi Giacaman
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia 5090000, Chile
- Jeffrey Modell Center of Diagnosis and Research in Primary Immunodeficiencies. Faculty of Medicine, University of La Frontera, Temuco 4780000, Chile
| | - Victor Miranda
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile
| | - Alejandra Vidal
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Sandra L Orellana
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja, Casilla 567, Valdivia 5090000, Chile
| | - Miguel Concha
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Francisca Pavicic
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Judit G Lisoni
- NM MultiMat, Instituto de Ciencias Físicas y Matemáticas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Lisette Leyton
- Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile.
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile.
| | - Felipe A Oyarzun-Ampuero
- Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile.
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile.
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Mobaraki M, Abbasi R, Omidian Vandchali S, Ghaffari M, Moztarzadeh F, Mozafari M. Corneal Repair and Regeneration: Current Concepts and Future Directions. Front Bioeng Biotechnol 2019; 7:135. [PMID: 31245365 PMCID: PMC6579817 DOI: 10.3389/fbioe.2019.00135] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 05/20/2019] [Indexed: 12/13/2022] Open
Abstract
The cornea is a unique tissue and the most powerful focusing element of the eye, known as a window to the eye. Infectious or non-infectious diseases might cause severe visual impairments that need medical intervention to restore patients' vision. The most prominent characteristics of the cornea are its mechanical strength and transparency, which are indeed the most important criteria considerations when reconstructing the injured cornea. Corneal strength comes from about 200 collagen lamellae which criss-cross the cornea in different directions and comprise nearly 90% of the thickness of the cornea. Regarding corneal transparency, the specific characteristics of the cornea include its immune and angiogenic privilege besides its limbus zone. On the other hand, angiogenic privilege involves several active cascades in which anti-angiogenic factors are produced to compensate for the enhanced production of proangiogenic factors after wound healing. Limbus of the cornea forms a border between the corneal and conjunctival epithelium, and its limbal stem cells (LSCs) are essential in maintenance and repair of the adult cornea through its support of corneal epithelial tissue repair and regeneration. As a result, the main factors which threaten the corneal clarity are inflammatory reactions, neovascularization, and limbal deficiency. In fact, the influx of inflammatory cells causes scar formation and destruction of the limbus zone. Current studies about wound healing treatment focus on corneal characteristics such as the immune response, angiogenesis, and cell signaling. In this review, studied topics related to wound healing and new approaches in cornea regeneration, which are mostly related to the criteria mentioned above, will be discussed.
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Affiliation(s)
- Mohammadmahdi Mobaraki
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Reza Abbasi
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Sajjad Omidian Vandchali
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Maryam Ghaffari
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Fathollah Moztarzadeh
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Masoud Mozafari
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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Bech F, González-González O, Artime E, Serrano J, Alcalde I, Gallar J, Merayo-Lloves J, Belmonte C. Functional and Morphologic Alterations in Mechanical, Polymodal, and Cold Sensory Nerve Fibers of the Cornea Following Photorefractive Keratectomy. Invest Ophthalmol Vis Sci 2019; 59:2281-2292. [PMID: 29847633 DOI: 10.1167/iovs.18-24007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To define the characteristics and time course of the morphologic and functional changes experienced by corneal sensory nerves after photorefractive keratectomy (PRK). Methods Unilateral corneal excimer laser photoablation was performed in 54 anesthetized 3- to 6-month-old mice; 11 naïve animals served as control. Mice were killed 0, 3, 7, 15, and 30 days after PRK. Excised eyes were placed in a recording chamber superfused at 34°C. Electrical nerve impulse activity of single sensory terminals was recorded with a micropipette applied onto the corneal surface. Spontaneous and stimulus-evoked (cold, heat, mechanical, and chemical stimuli) nerve terminal impulse (NTI) activity was analyzed. Corneas were fixed and stained with anti-β-Tubulin III antibody to measure nerve density and number of epithelial nerve penetration points of regenerating subbasal leashes. Results Nerve fibers and NTI activity were absent in the injured area between 0 and 7 days after PRK, when sparse regenerating nerve sprouts appear. On day 15, subbasal nerve density reached half the control value and abnormally responding cold-sensitive terminals were recorded inside the lesion. Thirty days after PRK, nerve density was almost restored, active cold thermoreceptors were abundant, and polymodal nociceptor activity first reappeared. Conclusions Morphologic regeneration of subbasal corneal nerves started shortly after PRK ablation and was substantially completed 30 days later. Functional recovery appears faster in cold terminals than polymodal terminals, possibly reflecting an incomplete damage of the more extensively branched cold-sensitive axon terminals. Evolution of postsurgical discomfort sensations quality may be associated with the variable regeneration pattern of each fiber type.
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Affiliation(s)
- Federico Bech
- Instituto Universitario Fernández-Vega, Universidad de Oviedo & Fundación de Investigación Oftalmológica, Oviedo, Spain
| | - Omar González-González
- Instituto Universitario Fernández-Vega, Universidad de Oviedo & Fundación de Investigación Oftalmológica, Oviedo, Spain
| | - Enol Artime
- Instituto Universitario Fernández-Vega, Universidad de Oviedo & Fundación de Investigación Oftalmológica, Oviedo, Spain
| | - Joana Serrano
- Instituto Universitario Fernández-Vega, Universidad de Oviedo & Fundación de Investigación Oftalmológica, Oviedo, Spain
| | - Ignacio Alcalde
- Instituto Universitario Fernández-Vega, Universidad de Oviedo & Fundación de Investigación Oftalmológica, Oviedo, Spain
| | - Juana Gallar
- Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, San Juan de Alicante, Spain
| | - Jesús Merayo-Lloves
- Instituto Universitario Fernández-Vega, Universidad de Oviedo & Fundación de Investigación Oftalmológica, Oviedo, Spain
| | - Carlos Belmonte
- Instituto Universitario Fernández-Vega, Universidad de Oviedo & Fundación de Investigación Oftalmológica, Oviedo, Spain.,Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, San Juan de Alicante, Spain
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Cordeiro AS, Crecente-Campo J, Bouzo BL, González SF, de la Fuente M, Alonso MJ. Engineering polymeric nanocapsules for an efficient drainage and biodistribution in the lymphatic system. J Drug Target 2019; 27:646-658. [DOI: 10.1080/1061186x.2018.1561886] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ana Sara Cordeiro
- Center for Research in Molecular Medicine & Chronic Diseases (CIMUS) Health Research Institute of Santiago de Compostela (IDIS), School of Pharmacy, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - José Crecente-Campo
- Center for Research in Molecular Medicine & Chronic Diseases (CIMUS) Health Research Institute of Santiago de Compostela (IDIS), School of Pharmacy, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - Belén L. Bouzo
- Center for Research in Molecular Medicine & Chronic Diseases (CIMUS) Health Research Institute of Santiago de Compostela (IDIS), School of Pharmacy, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela, Spain
| | - Santiago F. González
- Institute for Research in Biomedicine, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - María de la Fuente
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela, Spain
| | - María José Alonso
- Center for Research in Molecular Medicine & Chronic Diseases (CIMUS) Health Research Institute of Santiago de Compostela (IDIS), School of Pharmacy, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
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Ledo AM, Sasso MS, Bronte V, Marigo I, Boyd BJ, Garcia-Fuentes M, Alonso MJ. Co-delivery of RNAi and chemokine by polyarginine nanocapsules enables the modulation of myeloid-derived suppressor cells. J Control Release 2018; 295:60-73. [PMID: 30593832 DOI: 10.1016/j.jconrel.2018.12.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 12/05/2018] [Accepted: 12/23/2018] [Indexed: 12/13/2022]
Abstract
Myeloid-Derived Suppressor Cells (MDSCs), immunosuppressive cells that promote tumor growth, represent an attractive target in cancer immunotherapy. However, the clinical success of this strategy is limited by the lack of efficient drug delivery vehicles targeting this cell compartment. The objective of this work was to develop a delivery carrier, multilayer polymer nanocapsules, with the capacity to co-encapsulate two types of immunomodulatory drugs, a chemokine and an RNAi sequence, aimed at reverting MDSC-mediated immunosuppression. The chemokine CCL2, intended to attract monocyte-macrophage MDSCs, was encapsulated within the L2 inverse micellar aqueous domains of the lipid core of these nanocapsules. On the other hand, two different RNAi sequences that modulate the CCAAT/enhancer-binding protein beta (C/EBPβ) pathway, shC/EBPβ and miR 142-3p, were successfully associated to their polymer shell. These RNAi sequences were covered by subsequent layers of polyarginine and hyaluronic acid, thereby creating multi-layered assemblies that protected them and facilitated their targeted delivery. The in vitro studies performed in primary MDSCs cultures showed the capacity of miR 142-3p-loaded nanocapsules to reduce the highly immunosuppressive monocyte-macrophage subset. Additionally, the encapsulation of CCL2 within the nanocapsules induced a potent monocyte-macrophage chemoattraction that could be used to direct the therapy to these cell subsets. Finally, in vitro and in vivo studies showed the capacity of shC/EBPβ-loaded nanocapsules to downregulate C/EBPβ levels in MDSCs and to reduce monocyte differentiation into tumor-associated macrophages in an MCA-203 fibrosarcoma mice model. In conclusion, the multilayer polymer nanocapsules described here are efficient vehicles for the co-delivery of proteins and RNA, and are potential candidates as nanomedicines for the modulation of MDSCs.
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Affiliation(s)
- Adriana M Ledo
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, CIMUS Research Institute, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Maria S Sasso
- Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy; Institute for Molecular Engineering, The University of Chicago, Chicago, IL, USA
| | - Vincenzo Bronte
- Department of Medicine, Verona University Hospital, 37134 Verona, Italy
| | - Ilaria Marigo
- Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Ben J Boyd
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Marcos Garcia-Fuentes
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, CIMUS Research Institute, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - María J Alonso
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, CIMUS Research Institute, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Alvarez-Figueroa MJ, Abarca-Riquelme JM, González-Aramundiz JV. Influence of protamine shell on nanoemulsions as a carrier for cyclosporine-A skin delivery. Pharm Dev Technol 2018; 24:630-638. [DOI: 10.1080/10837450.2018.1550789] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - José María Abarca-Riquelme
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - José Vicente González-Aramundiz
- Departamento de Farmacia, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
- Centro de Investigación en Nanotecnología y Materiales Avanzados “CIEN-UC”, Pontificia Universidad Católica de Chile, Santiago, Chile
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González-Aramundiz JV, Peleteiro M, González-Fernández Á, Alonso MJ, Csaba NS. Protamine Nanocapsules for the Development of Thermostable Adjuvanted Nanovaccines. Mol Pharm 2018; 15:5653-5664. [PMID: 30375877 DOI: 10.1021/acs.molpharmaceut.8b00852] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
One of the main challenges in the development of vaccine has been to improve their stability at room temperature and eliminate the limitations associated with the cold chain storage. In this paper, we describe the development and optimization of thermostable nanocarriers consisting of an oily core with immunostimulating activity, containing squalene or α tocopherol surrounded by a protamine shell. The results showed that these nanocapsules can efficiently associate the recombinant hepatitis B surface antigen (rHBsAg) without compromising its antigenicity. Furthermore, the freeze-dried protamine nanocapsules were able to preserve the integrity and bioactivity of the associated antigen upon storage for at least 12 months at room temperature. In vitro studies evidenced the high internalization of the nanocapsules by immunocompetent cells, followed by cytokine secretion and complement activation. In vivo studies showed the capacity of rHBsAg-loaded nanocapsules to elicit protective levels upon intramuscular or intranasal administration to mice. Overall, our data indicate that protamine nanocapsules are an innovative thermostable nanovaccine platform for improved antigen delivery.
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Affiliation(s)
- José Vicente González-Aramundiz
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy , University of Santiago de Compostela , 15782 Santiago de Compostela , Spain.,Departamento de Farmacia, Facultad de Química , Pontificia Universidad Católica de Chile , Santiago , Chile
| | - Mercedes Peleteiro
- Inmunologı́a, Centro de Investigaciones Biomédicas (CINBIO) (Centro Singular de Investigación de Galicia) , Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo , Vigo , Spain
| | - África González-Fernández
- Inmunologı́a, Centro de Investigaciones Biomédicas (CINBIO) (Centro Singular de Investigación de Galicia) , Instituto de Investigación Sanitaria Galicia Sur, Universidade de Vigo , Vigo , Spain
| | - María José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy , University of Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - Noemi Stefánia Csaba
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy , University of Santiago de Compostela , 15782 Santiago de Compostela , Spain
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Crecente-Campo J, Lorenzo-Abalde S, Mora A, Marzoa J, Csaba N, Blanco J, González-Fernández Á, Alonso MJ. Bilayer polymeric nanocapsules: A formulation approach for a thermostable and adjuvanted E. coli antigen vaccine. J Control Release 2018; 286:20-32. [PMID: 30017722 DOI: 10.1016/j.jconrel.2018.07.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/26/2018] [Accepted: 07/10/2018] [Indexed: 11/17/2022]
Abstract
One of the strategies used to improve the immunogenicity of purified protein antigens has relied on their association with synthetic nanocarriers, which, in general, have functioned as simple antigen containers. Here, we present a more advanced strategy based on the design of an antigen nanocarrier at the molecular level. The nanocarrier is composed of a vitamin E oily core, surrounded by two layers: a first layer of chitosan and a second of dextran sulphate. The selected antigen, IutA protein from Escherichia coli, was harboured between the two polymeric layers. The final bilayer nanocapsules had a nanometric size (≈ 200 nm), a negative zeta potential (< -40 mV) and a good antigen association efficiency (≈ 70%). The bilayer architecture led to an improvement on the formulation stability and the controlled release of the associated antigen. Remarkably, after being administered to mice, bilayer nanocapsules elicited higher IgG levels than those obtained with antigen precipitated with Alum. Moreover, freeze-dried nanocapsules were stable at room temperature for, at least, 3 months. These promising data, in addition to their contribution to the development of an uropathogenic E. coli vaccine, has allowed us to validate these novel bilayer nanocapsules as adequate platforms for the delivery of protein antigens.
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Affiliation(s)
- José Crecente-Campo
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Silvia Lorenzo-Abalde
- Centro de Investigaciones Biomédicas (CINBIO) (Centro Singular de Investigación de Galicia), Instituto de Investigación Sanitaria Galicia Sur (IISGS), Campus Universitario, Universidade de Vigo, Vigo, 36310, Spain
| | - Azucena Mora
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Juan Marzoa
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Noemi Csaba
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Jorge Blanco
- Laboratorio de Referencia de E. coli (LREC), Departamento de Microbioloxía e Parasitoloxía, Facultade de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - África González-Fernández
- Centro de Investigaciones Biomédicas (CINBIO) (Centro Singular de Investigación de Galicia), Instituto de Investigación Sanitaria Galicia Sur (IISGS), Campus Universitario, Universidade de Vigo, Vigo, 36310, Spain
| | - María José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain.
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Singh A, Abd AJ, Al-Mashahedah A, Kanwar JR. Corneal Haze, Refractive Surgery, and Implications for Choroidal Neovascularization. DRUG DELIVERY FOR THE RETINA AND POSTERIOR SEGMENT DISEASE 2018:439-477. [DOI: 10.1007/978-3-319-95807-1_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Zeppieri M, Salvetat ML, Beltrami A, Cesselli D, Russo R, Alcalde I, Merayo-Lloves J, Brusini P, Parodi PC. Adipose Derived Stem Cells for Corneal Wound Healing after Laser Induced Corneal Lesions in Mice. J Clin Med 2017; 6:jcm6120115. [PMID: 29206194 PMCID: PMC5742804 DOI: 10.3390/jcm6120115] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/24/2017] [Accepted: 11/30/2017] [Indexed: 02/05/2023] Open
Abstract
The aim of our study was to assess the clinical effectiveness of topical adipose derived stem cell (ADSC) treatment in laser induced corneal wounds in mice by comparing epithelial repair, inflammation, and histological analysis between treatment arms. Corneal lesions were performed on both eyes of 40 mice by laser induced photorefractive keratectomy. All eyes were treated with topical azythromycin bid for three days. Mice were divided in three treatment groups (n = 20), which included: control, stem cells and basic serum; which received topical treatment three times daily for five consecutive days. Biomicroscope assessments and digital imaging were performed by two masked graders at 30, 54, 78, 100, and 172 h to analyze extent of fluorescein positive epithelial defect, corneal inflammation, etc. Immunohistochemical techniques were used in fixed eyes to assess corneal repair markers Ki67, α Smooth Muscle Actin (α-SMA) and E-Cadherin. The fluorescein positive corneal lesion areas were significantly smaller in the stem cells group on days 1 (p < 0.05), 2 (p < 0.02) and 3. The stem cell treated group had slightly better and faster re-epithelization than the serum treated group in the initial phases. Comparative histological data showed signs of earlier and better corneal repair in epithelium and stromal layers in stem cell treated eyes, which showed more epithelial layers and enhanced wound healing performance of Ki67, E-Cadherin, and α-SMA. Our study shows the potential clinical and histological advantages in the topical ADSC treatment for corneal lesions in mice.
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Affiliation(s)
- Marco Zeppieri
- Department of Ophthalmology, Azienda Ospedaliero Universitaria Santa Maria della Misericordia, Udine 33100, Italy.
| | - Maria Letizia Salvetat
- Department of Ophthalmology, Azienda Ospedaliero Universitaria Santa Maria della Misericordia, Udine 33100, Italy.
| | - Antonio Beltrami
- Department of Pathology, University of Udine, Azienda Ospedaliero Universitaria Santa Maria della Misericordia, Udine 33100, Italy.
| | - Daniela Cesselli
- Department of Pathology, University of Udine, Azienda Ospedaliero Universitaria Santa Maria della Misericordia, Udine 33100, Italy.
| | - Rossella Russo
- Department of Pharmacobiology, University of Calabria, Cosenza 87036, Italy.
| | - Ignacio Alcalde
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, Oviedo 33006, Spain.
| | - Jesús Merayo-Lloves
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, Oviedo 33006, Spain.
| | - Paolo Brusini
- Department of Ophthalmology, Azienda Ospedaliero Universitaria Santa Maria della Misericordia, Udine 33100, Italy.
| | - Pier Camillo Parodi
- Department of Plastic Surgery, University of Udine, Azienda Ospedaliero Universitaria Santa Maria della Misericordia, Udine 33100, Italy.
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Saraiva SM, Castro-López V, Pañeda C, Alonso MJ. Synthetic nanocarriers for the delivery of polynucleotides to the eye. Eur J Pharm Sci 2017; 103:5-18. [PMID: 28263915 DOI: 10.1016/j.ejps.2017.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 02/07/2023]
Abstract
This review is a comprehensive analysis of the progress made so far on the delivery of polynucleotide-based therapeutics to the eye, using synthetic nanocarriers. Attention has been addressed to the capacity of different nanocarriers for the specific delivery of polynucleotides to both, the anterior and posterior segments of the eye, with emphasis on their ability to (i) improve the transport of polynucleotides across the different eye barriers; (ii) promote their intracellular penetration into the target cells; (iii) protect them against degradation and, (iv) deliver them in a long-term fashion way. Overall, the conclusion is that despite the advantages that nanotechnology may offer to the area of ocular polynucleotide-based therapies (especially AS-ODN and siRNA delivery), the knowledge disclosed so far is still limited. This fact underlines the necessity of more fundamental and product-oriented research for making the way of the said nanotherapies towards clinical translation.
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Affiliation(s)
- Sofia M Saraiva
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Av. Barcelona s/n, Campus Vida, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Vanessa Castro-López
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Av. Barcelona s/n, Campus Vida, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Covadonga Pañeda
- Sylentis, R&D Department, c/Santiago Grisolía 2, 28760 Tres Cantos, Madrid, Spain
| | - María José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Av. Barcelona s/n, Campus Vida, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain; Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain.
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