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Silva B, Marques EF, Gomes AC. Recent advances in in vitro models simulating the female genital tract toward more effective intravaginal therapeutic delivery. Expert Opin Drug Deliv 2024; 21:1007-1027. [PMID: 39001669 DOI: 10.1080/17425247.2024.2380338] [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: 02/21/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
INTRODUCTION Intravaginal drug delivery has emerged as a promising avenue for treating a spectrum of systemic and local female genital tract (FGT) conditions, using biomaterials as carriers or scaffolds for targeted and efficient administration. Much effort has been made to understand the natural barriers of this route and improve the delivery system to achieve an efficient therapeutic response. AREAS COVERED In this review, we conducted a comprehensive literature search using multiple databases (PubMed Scopus Web of Science Google Scholar), to discuss the potential of intravaginal therapeutic delivery, as well as the obstacles unique to this route. The in vitro cell models of the FGT and how they can be applied to probing intravaginal drug delivery are then analyzed. We further explore the limitations of the existing models and the possibilities to make them more promising for delivery studies or biomaterial validation. Complementary information is provided by in vitro acellular techniques that may shed light on mucus-drug interaction. EXPERT OPINION Advances in 3D models and cell cultures have enhanced our understanding of the FGT, but they still fail to replicate all variables. Future research should aim to use complementary methods, ensure stability, and develop consistent protocols to improve therapy evaluation and create better predictive in vitro models for women's health.
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Affiliation(s)
- Bruna Silva
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, Campus of Gualtar, University of Minho, Braga, Portugal
- CIQUP, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Eduardo F Marques
- CIQUP, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Andreia C Gomes
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, Campus of Gualtar, University of Minho, Braga, Portugal
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2
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Zhao Y, Xu C, Liu Q, Lei X, Deng L, Wang F, Yang J. pH-responsive interface conversion efficient oral drug delivery platform for alleviating inflammatory bowel disease. Front Chem 2024; 12:1365880. [PMID: 38532806 PMCID: PMC10963395 DOI: 10.3389/fchem.2024.1365880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 03/04/2024] [Indexed: 03/28/2024] Open
Abstract
A key challenge for the effective treatment of intestinal diseases, including inflammatory bowel disease (IBD), is to develop an oral drug delivery system that can resist gastric acid erosion and efficiently release drugs after rapid entry into the intestine. In the present work, we developed oral composite nanoparticles (MSZ@PRHS) consisting of a rough mesoporous silica (RHS) loaded with Mesalazine (MSZ) and a CAP polymer membrane for targeted relief of inflammation in colitis. At the pH values of the simulated stomach and small intestine, the release rate of MSZ from MSZ@PRHS was low, while at the pH values of the simulated colon, the release rate of MSZ was high. In dextran sulfate sodium salt (DSS)-induced acute colitis mouse model, compared with oral administration of the drug Mesalazine in the equivalent solution form, oral administration of PRHS loaded with drug-loaded nanoparticles can significantly alleviate the symptoms of inflammatory bowel disease, and improve the therapeutic effect. We propose that the intestinal microenvironment provides an interface for nanocomposites switch and a promising drug delivery platform for the management and treatment of many intestinal diseases, where controlled drug release and prolonged residence time are required.
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Affiliation(s)
- Yingying Zhao
- Department of Gastroenterology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong, China
| | - Changqing Xu
- Department of Gastroenterology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong, China
| | - Qing Liu
- Department of Clinical Laboratory, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, China
| | - Xiaofei Lei
- Department of Gastroenterology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong, China
| | - Li Deng
- Department of Gastroenterology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong, China
| | - Fengyan Wang
- Department of Gastroenterology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong, China
| | - Jing Yang
- Department of Gastroenterology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong, China
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Bahmani E, Banihashem S, Shirinzad S, Bybordi S, Shikhi-Abadi PG, Jazi FS, Irani M. Incorporation of doxorubicin and CoFe 2O 4 nanoparticles into the cellulose acetate phthalate / polyvinyl alcohol (core)/ polyurethane (shell) nanofibers against A549 human lung cancer during chemotherapy/hyperthermia combined method. Int J Pharm 2024; 649:123618. [PMID: 37977290 DOI: 10.1016/j.ijpharm.2023.123618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/08/2023] [Accepted: 11/15/2023] [Indexed: 11/19/2023]
Abstract
Cellulose acetate phthalate (CAP)/polyvinyl alcohol (PVA)/polyurethane (PU) nanofibers were synthesized by simple and coaxial electrospinning (ES) processes. Doxorubicin (DOX) and the CoFe2O4 nanoparticles were loaded into the nanofibers. The performance of the prepared nanofibers was investigated for the sustained release of DOX against A541 lung cancer cells under chemotherapy/external magnetic field (EMF) and alternating magnetic field (AMF, hyperthermia treatment) combined methods in both the in vitro and in vivo conditions. The sustained release of DOX from core-shell nanofibers containing 5 wt% cobalt ferrite was obtained within 300, 600 h, at pH of 5.5 and 7.4 without AMF and 168, 360 h, under an alternating magnetic field (AMF). More than 98.3 ± 0.2 % of A549 cancer cells were killed in the presence of core-shell nanofibers containing 100 μg DOX and 5 % cobalt ferrite nanoparticles in the presence of AMF. The flowcytometric results indicated that only 19.1 and 8.85 % cancer cells remained alive under EMF and AMF, respectively. The in vivo results revealed in stopping the growth of tumor volume and decrease in the relative tumor volume up to 0.5 were obtained using magnetic core-shell nanofibers containing 100 μg DOX and 5 % cobalt ferrite nanoparticles in the presence of EMF and AMF, respectively.
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Affiliation(s)
- Ehsan Bahmani
- Department of Chemical Engineering, Payam Noor University, Tehran, Iran
| | | | - Sara Shirinzad
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Sara Bybordi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | | | - Mohammad Irani
- Department of Pharmaceutics, Faculty of Pharmacy, Alborz University of Medical Sciences, Karaj, Iran.
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Mercante LA, Teodoro KBR, dos Santos DM, dos Santos FV, Ballesteros CAS, Ju T, Williams GR, Correa DS. Recent Progress in Stimuli-Responsive Antimicrobial Electrospun Nanofibers. Polymers (Basel) 2023; 15:4299. [PMID: 37959981 PMCID: PMC10647808 DOI: 10.3390/polym15214299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/17/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Electrospun nanofibrous membranes have garnered significant attention in antimicrobial applications, owing to their intricate three-dimensional network that confers an interconnected porous structure, high specific surface area, and tunable physicochemical properties, as well as their notable capacity for loading and sustained release of antimicrobial agents. Tailoring polymer or hybrid-based nanofibrous membranes with stimuli-responsive characteristics further enhances their versatility, enabling them to exhibit broad-spectrum or specific activity against diverse microorganisms. In this review, we elucidate the pivotal advancements achieved in the realm of stimuli-responsive antimicrobial electrospun nanofibers operating by light, temperature, pH, humidity, and electric field, among others. We provide a concise introduction to the strategies employed to design smart electrospun nanofibers with antimicrobial properties. The core section of our review spotlights recent progress in electrospun nanofiber-based systems triggered by single- and multi-stimuli. Within each stimulus category, we explore recent examples of nanofibers based on different polymers and antimicrobial agents. Finally, we delve into the constraints and future directions of stimuli-responsive nanofibrous materials, paving the way for their wider application spectrum and catalyzing progress toward industrial utilization.
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Affiliation(s)
- Luiza A. Mercante
- Institute of Chemistry, Federal University of Bahia (UFBA), Salvador 40170-280, BA, Brazil
| | - Kelcilene B. R. Teodoro
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, SP, Brazil; (K.B.R.T.); (D.M.d.S.); (F.V.d.S.)
| | - Danilo M. dos Santos
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, SP, Brazil; (K.B.R.T.); (D.M.d.S.); (F.V.d.S.)
| | - Francisco V. dos Santos
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, SP, Brazil; (K.B.R.T.); (D.M.d.S.); (F.V.d.S.)
- Department of Materials Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos 13563-120, SP, Brazil
| | - Camilo A. S. Ballesteros
- Bachelor in Natural Sciences and Environmental Education, Pedagogical and Technological University of Colombia (UPTC), Tunja 150003, Colombia;
| | - Tian Ju
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; (T.J.); (G.R.W.)
| | - Gareth R. Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; (T.J.); (G.R.W.)
| | - Daniel S. Correa
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, SP, Brazil; (K.B.R.T.); (D.M.d.S.); (F.V.d.S.)
- Department of Materials Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos 13563-120, SP, Brazil
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Atia GAN, Shalaby HK, Ali NG, Morsy SM, Ghobashy MM, Attia HAN, Barai P, Nady N, Kodous AS, Barai HR. New Challenges and Prospective Applications of Three-Dimensional Bioactive Polymeric Hydrogels in Oral and Craniofacial Tissue Engineering: A Narrative Review. Pharmaceuticals (Basel) 2023; 16:702. [PMID: 37242485 PMCID: PMC10224377 DOI: 10.3390/ph16050702] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/26/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Regenerative medicine, and dentistry offers enormous potential for enhancing treatment results and has been fueled by bioengineering breakthroughs over the previous few decades. Bioengineered tissues and constructing functional structures capable of healing, maintaining, and regenerating damaged tissues and organs have had a broad influence on medicine and dentistry. Approaches for combining bioinspired materials, cells, and therapeutic chemicals are critical in stimulating tissue regeneration or as medicinal systems. Because of its capacity to maintain an unique 3D form, offer physical stability for the cells in produced tissues, and replicate the native tissues, hydrogels have been utilized as one of the most frequent tissue engineering scaffolds during the last twenty years. Hydrogels' high water content can provide an excellent conditions for cell viability as well as an architecture that mimics real tissues, bone, and cartilage. Hydrogels have been used to enable cell immobilization and growth factor application. This paper summarizes the features, structure, synthesis and production methods, uses, new challenges, and future prospects of bioactive polymeric hydrogels in dental and osseous tissue engineering of clinical, exploring, systematical and scientific applications.
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Affiliation(s)
- Gamal Abdel Nasser Atia
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Hany K. Shalaby
- Department of Oral Medicine, Periodontology and Oral Diagnosis, Faculty of Dentistry, Suez University, Suez P.O. Box 43512, Egypt
| | - Naema Goda Ali
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Shaimaa Mohammed Morsy
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Mohamed Mohamady Ghobashy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo P.O. Box 13759, Egypt
| | - Hager Abdel Nasser Attia
- Department of Molecular Biology and Chemistry, Faculty of Science, Alexandria University, Alexandria P.O. Box 21526, Egypt
| | - Paritosh Barai
- Department of Biochemistry and Molecular Biology, Primeasia University, Dhaka 1213, Bangladesh
| | - Norhan Nady
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg Elarab, Alexandria P.O. Box 21934, Egypt
| | - Ahmad S. Kodous
- Department of Radiation Biology, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority (EAEA), Cairo P.O. Box 13759, Egypt
| | - Hasi Rani Barai
- Department of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Shapiro RL, DeLong K, Zulfiqar F, Carter D, Better M, Ensign LM. In vitro and ex vivo models for evaluating vaginal drug delivery systems. Adv Drug Deliv Rev 2022; 191:114543. [PMID: 36208729 PMCID: PMC9940824 DOI: 10.1016/j.addr.2022.114543] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 08/26/2022] [Accepted: 09/13/2022] [Indexed: 01/24/2023]
Abstract
Vaginal drug delivery systems are often preferred for treating a variety of diseases and conditions of the female reproductive tract (FRT), as delivery can be more targeted with less systemic side effects. However, there are many anatomical and biological barriers to effective treatment via the vaginal route. Further, biocompatibility with the local tissue and microbial microenvironment is desired. A variety of in vitro and ex vivo models are described herein for evaluating the physicochemical properties and toxicity profile of vaginal drug delivery systems. Deciding whether to utilize organoids in vitro or fresh human cervicovaginal mucus ex vivo requires careful consideration of the intended use and the formulation characteristics. Optimally, in vitro and ex vivo experimentation will inform or predict in vivo performance, and examples are given that describe utilization of a range of methods from in vitro to in vivo. Lastly, we highlight more advanced model systems for other mucosa as inspiration for the future in model development for the FRT.
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Affiliation(s)
- Rachel L Shapiro
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Chemical & Biomolecular Engineering, Johns Hopkins University, 3400 N Charles St., Baltimore, MD 21218, USA.
| | - Kevin DeLong
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA.
| | - Fareeha Zulfiqar
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA.
| | - Davell Carter
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, 725 N Wolfe St., Baltimore, MD 21287, USA.
| | - Marina Better
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, 725 N Wolfe St., Baltimore, MD 21287, USA.
| | - Laura M Ensign
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, 725 N Wolfe St., Baltimore, MD 21287, USA; Department of Chemical & Biomolecular Engineering, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA; Departments of Gynecology and Obstetrics, Infectious Diseases, and Oncology, Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA; Department of Biomedical Engineering, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA.
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7
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Application of Nano-Inspired Scaffolds-Based Biopolymer Hydrogel for Bone and Periodontal Tissue Regeneration. Polymers (Basel) 2022; 14:polym14183791. [PMID: 36145936 PMCID: PMC9504130 DOI: 10.3390/polym14183791] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
This review’s objectives are to provide an overview of the various kinds of biopolymer hydrogels that are currently used for bone tissue and periodontal tissue regeneration, to list the advantages and disadvantages of using them, to assess how well they might be used for nanoscale fabrication and biofunctionalization, and to describe their production processes and processes for functionalization with active biomolecules. They are applied in conjunction with other materials (such as microparticles (MPs) and nanoparticles (NPs)) and other novel techniques to replicate physiological bone generation more faithfully. Enhancing the biocompatibility of hydrogels created from blends of natural and synthetic biopolymers can result in the creation of the best scaffold match to the extracellular matrix (ECM) for bone and periodontal tissue regeneration. Additionally, adding various nanoparticles can increase the scaffold hydrogel stability and provide a number of biological effects. In this review, the research study of polysaccharide hydrogel as a scaffold will be critical in creating valuable materials for effective bone tissue regeneration, with a future impact predicted in repairing bone defects.
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Hernandez JL, Woodrow KA. Medical Applications of Porous Biomaterials: Features of Porosity and Tissue-Specific Implications for Biocompatibility. Adv Healthc Mater 2022; 11:e2102087. [PMID: 35137550 PMCID: PMC9081257 DOI: 10.1002/adhm.202102087] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/17/2021] [Indexed: 12/14/2022]
Abstract
Porosity is an important material feature commonly employed in implants and tissue scaffolds. The presence of material voids permits the infiltration of cells, mechanical compliance, and outward diffusion of pharmaceutical agents. Various studies have confirmed that porosity indeed promotes favorable tissue responses, including minimal fibrous encapsulation during the foreign body reaction (FBR). However, increased biofilm formation and calcification is also described to arise due to biomaterial porosity. Additionally, the relevance of host responses like the FBR, infection, calcification, and thrombosis are dependent on tissue location and specific tissue microenvironment. In this review, the features of porous materials and the implications of porosity in the context of medical devices is discussed. Common methods to create porous materials are also discussed, as well as the parameters that are used to tune pore features. Responses toward porous biomaterials are also reviewed, including the various stages of the FBR, hemocompatibility, biofilm formation, and calcification. Finally, these host responses are considered in tissue specific locations including the subcutis, bone, cardiovascular system, brain, eye, and female reproductive tract. The effects of porosity across the various tissues of the body is highlighted and the need to consider the tissue context when engineering biomaterials is emphasized.
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Affiliation(s)
- Jamie L Hernandez
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
| | - Kim A Woodrow
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
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Tan RYH, Lee CS, Pichika MR, Cheng SF, Lam KY. PH Responsive Polyurethane for the Advancement of Biomedical and Drug Delivery. Polymers (Basel) 2022; 14:polym14091672. [PMID: 35566843 PMCID: PMC9102459 DOI: 10.3390/polym14091672] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/11/2022] [Accepted: 04/17/2022] [Indexed: 02/01/2023] Open
Abstract
Due to the specific physiological pH throughout the human body, pH-responsive polymers have been considered for aiding drug delivery systems. Depending on the surrounding pH conditions, the polymers can undergo swelling or contraction behaviors, and a degradation mechanism can release incorporated substances. Additionally, polyurethane, a highly versatile polymer, has been reported for its biocompatibility properties, in which it demonstrates good biological response and sustainability in biomedical applications. In this review, we focus on summarizing the applications of pH-responsive polyurethane in the biomedical and drug delivery fields in recent years. In recent studies, there have been great developments in pH-responsive polyurethanes used as controlled drug delivery systems for oral administration, intravaginal administration, and targeted drug delivery systems for chemotherapy treatment. Other applications such as surface biomaterials, sensors, and optical imaging probes are also discussed in this review.
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Affiliation(s)
- Rachel Yie Hang Tan
- School of Postgraduate, International Medical University, Kuala Lumpur 57000, Malaysia; (R.Y.H.T.); (K.Y.L.)
| | - Choy Sin Lee
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia;
- Correspondence:
| | - Mallikarjuna Rao Pichika
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia;
- Centre for Bioactive Molecules and Drug Delivery, Institute for Research, Development and Innovation, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Sit Foon Cheng
- Unit of Research on Lipids (URL), Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Ki Yan Lam
- School of Postgraduate, International Medical University, Kuala Lumpur 57000, Malaysia; (R.Y.H.T.); (K.Y.L.)
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Gajić I, Stojanović S, Ristić I, Ilić-Stojanović S, Pilić B, Nešić A, Najman S, Dinić A, Stanojević L, Urošević M, Nikolić V, Nikolić L. Electrospun Poly(lactide) Fibers as Carriers for Controlled Release of Biochanin A. Pharmaceutics 2022; 14:528. [PMID: 35335904 PMCID: PMC8951644 DOI: 10.3390/pharmaceutics14030528] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 02/04/2023] Open
Abstract
The aim of this study is to investigate the possibility of using electrospun polylactide (PLA) fibers as a carrier of the phytoestrogen biochanin A. Polylactide fibers were prepared with different contents of biochanin A by using an electrospinning method at specific process parameters. The obtained electrospun polylactide fibers, as carriers of biochanin A, were characterized by means of different methods. The presented results showed that the mechanical properties of PLA have not changed significantly in the presence of biochanin A. Scanning electron microscopy showed that the fine fiber structure is retained without visible deformations and biochanin A crystals on the surface of the fibres. The analysis by infrared spectroscopy showed that there are no strong interactions between polylactide and biochanin A molecules, which is a good prerequisite for the diffusion release of biochanin A from PLA fibers.The release of biochanin A from PLA fibers in buffer solution pH 7.4 at 37 °C was monitored by applying the HPLC method. The rate and time of the release of biochanin A from PLA fibers is in correlation with the amount of the active ingredient in the matrix of the carrier and follows zero-order kinetics. PLA fibers with biochanin A exhibit concentration-dependent activity on proliferation and migration of L929 fibroblasts in direct culture system in vitro, and proved to be suitable for a potential formulation for use in wound healing.
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Affiliation(s)
- Ivana Gajić
- Faculty of Technology, University of Niš, Bulevar oslobodjenja 124, 16000 Leskovac, Serbia; (I.G.); (A.D.); (L.S.); (M.U.); (V.N.); (L.N.)
| | - Sanja Stojanović
- Department of Biology and Human Genetics, Faculty of Medicine, University of Niš, Blvd. Dr Zorana Djindjica 81, 18108 Niš, Serbia; (S.S.); (S.N.)
- Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, Blvd. Dr Zorana Djindjica 81, 18108 Niš, Serbia
| | - Ivan Ristić
- Faculty of Technology Novi Sad, University of Novi Sad, 18000 Novi Sad, Serbia; (I.R.); (B.P.); (A.N.)
| | - Snežana Ilić-Stojanović
- Faculty of Technology, University of Niš, Bulevar oslobodjenja 124, 16000 Leskovac, Serbia; (I.G.); (A.D.); (L.S.); (M.U.); (V.N.); (L.N.)
| | - Branka Pilić
- Faculty of Technology Novi Sad, University of Novi Sad, 18000 Novi Sad, Serbia; (I.R.); (B.P.); (A.N.)
| | - Aleksandra Nešić
- Faculty of Technology Novi Sad, University of Novi Sad, 18000 Novi Sad, Serbia; (I.R.); (B.P.); (A.N.)
| | - Stevo Najman
- Department of Biology and Human Genetics, Faculty of Medicine, University of Niš, Blvd. Dr Zorana Djindjica 81, 18108 Niš, Serbia; (S.S.); (S.N.)
- Department for Cell and Tissue Engineering, Faculty of Medicine, University of Niš, Blvd. Dr Zorana Djindjica 81, 18108 Niš, Serbia
| | - Ana Dinić
- Faculty of Technology, University of Niš, Bulevar oslobodjenja 124, 16000 Leskovac, Serbia; (I.G.); (A.D.); (L.S.); (M.U.); (V.N.); (L.N.)
| | - Ljiljana Stanojević
- Faculty of Technology, University of Niš, Bulevar oslobodjenja 124, 16000 Leskovac, Serbia; (I.G.); (A.D.); (L.S.); (M.U.); (V.N.); (L.N.)
| | - Maja Urošević
- Faculty of Technology, University of Niš, Bulevar oslobodjenja 124, 16000 Leskovac, Serbia; (I.G.); (A.D.); (L.S.); (M.U.); (V.N.); (L.N.)
| | - Vesna Nikolić
- Faculty of Technology, University of Niš, Bulevar oslobodjenja 124, 16000 Leskovac, Serbia; (I.G.); (A.D.); (L.S.); (M.U.); (V.N.); (L.N.)
| | - Ljubiša Nikolić
- Faculty of Technology, University of Niš, Bulevar oslobodjenja 124, 16000 Leskovac, Serbia; (I.G.); (A.D.); (L.S.); (M.U.); (V.N.); (L.N.)
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11
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Schoeller J, Itel F, Wuertz-Kozak K, Fortunato G, Rossi RM. pH-Responsive Electrospun Nanofibers and Their Applications. POLYM REV 2021. [DOI: 10.1080/15583724.2021.1939372] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jean Schoeller
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St.Gallen, Switzerland
- Department of Health Science and Technology, ETH Zürich, Zürich, Switzerland
| | - Fabian Itel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St.Gallen, Switzerland
| | - Karin Wuertz-Kozak
- Department of Health Science and Technology, ETH Zürich, Zürich, Switzerland
- Department of Biomedical Engineering, Rochester Institute of Technology (RIT), Rochester, New York, USA
| | - Giuseppino Fortunato
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St.Gallen, Switzerland
| | - René M. Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St.Gallen, Switzerland
- Department of Health Science and Technology, ETH Zürich, Zürich, Switzerland
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12
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Chandrashekhar P, Minooei F, Arreguin W, Masigol M, Steinbach-Rankins JM. Perspectives on Existing and Novel Alternative Intravaginal Probiotic Delivery Methods in the Context of Bacterial Vaginosis Infection. AAPS J 2021; 23:66. [PMID: 33973067 PMCID: PMC8356663 DOI: 10.1208/s12248-021-00602-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/27/2021] [Indexed: 12/17/2022] Open
Abstract
Bacterial vaginosis (BV) is one of the most common vaginal infections that affects hundreds of millions of women of reproductive age, worldwide. Traditional treatment strategies, such as oral and topical antibiotics, have shown efficacy against BV, but frequent recurrence of infection and the development of antibiotic-resistant bacteria remain as significant challenges. Alternatively, recent progress in understanding immune, microbiological, and metabolic interactions in the vaginal microbiota has prompted the consideration of administering probiotic organisms to restore and maintain vaginal health within the context of BV prevention and treatment. Given this, the objective of this review is to discuss existing and potential alternative approaches to deliver, and to potentially sustain the delivery of probiotics, to prevent and/or treat BV infections. First, a brief overview is provided regarding the probiotic species and combinatorial probiotic strategies that have shown promise in the treatment of BV and in restoring female reproductive health. Additionally, the advantages and challenges associated with current oral and intravaginal probiotic delivery platforms are discussed. Lastly, we present emerging and promising alternative dosage forms, such as electrospun fibers and 3D bioprinted scaffolds, that may be adapted as new strategies to intravaginally deliver probiotic organisms. Graphical abstract.
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Affiliation(s)
| | - Farnaz Minooei
- Department of Chemical Engineering, University of Louisville Speed School of Engineering, Louisville, Kentucky, USA
- Center for Predictive Medicine, University of Louisville, Louisville, Kentucky, USA
| | - Wenndy Arreguin
- Department of Bioengineering, University of Louisville Speed School of Engineering, 505 S. Hancock St., Room 623, Louisville, Kentucky, 40202, USA
| | - Mohammadali Masigol
- Center for Predictive Medicine, University of Louisville, Louisville, Kentucky, USA
- Department of Bioengineering, University of Louisville Speed School of Engineering, 505 S. Hancock St., Room 623, Louisville, Kentucky, 40202, USA
| | - Jill M Steinbach-Rankins
- Center for Predictive Medicine, University of Louisville, Louisville, Kentucky, USA.
- Department of Bioengineering, University of Louisville Speed School of Engineering, 505 S. Hancock St., Room 623, Louisville, Kentucky, 40202, USA.
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, USA.
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA.
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13
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Nunes R, Bogas S, Faria MJ, Gonçalves H, Lúcio M, Viseu T, Sarmento B, das Neves J. Electrospun fibers for vaginal administration of tenofovir disoproxil fumarate and emtricitabine in the context of topical pre-exposure prophylaxis. J Control Release 2021; 334:453-462. [PMID: 33961916 DOI: 10.1016/j.jconrel.2021.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/06/2021] [Accepted: 05/03/2021] [Indexed: 12/24/2022]
Abstract
Women are particularly vulnerable to sexual HIV-1 transmission. Oral pre-exposure prophylaxis (PrEP) with tenofovir disoproxil fumarate and emtricitabine (TDF/FTC) is highly effective in avoiding new infections in men, but protection has only been shown to be moderate in women. Such differences have been associated, at least partially, to poor drug penetration of the lower female genital tract and the need for strict adherence to continuous daily oral intake of TDF/FTC. On-demand topical microbicide products could help circumvent these limitations. We developed electrospun fibers based on polycaprolactone (PCL fibers) or liposomes associated to poly(vinyl alcohol) (liposomes-in-PVA fibers) for the vaginal co-delivery of TDF and FTC, and assessed their pharmacokinetics in mice. PCL fibers and liposomes-in-PVA fibers were tested for morphological and physicochemical properties using scanning electron microscopy, differential scanning calorimetry and X-ray diffractometry. Fibers featured organoleptic and mechanical properties compatible with their suitable handling and vaginal administration. Fluorescent quenching of mucin in vitro - used as a proxy for mucoadhesion - was intense for PCL fibers, but mild for liposomes-in-PVA fibers. Both fibers were shown safe in vitro and able to rapidly release drug content (15-30 min) under sink conditions. Liposomes-in-PVA fibers allowed increasing genital drug concentrations after a single intravaginal administration when compared to continuous daily treatment for five days with 25-times higher oral doses. For instance, the levels of tenofovir and FTC in vaginal lavage were around 4- and 29-fold higher, respectively. PCL fibers were also superior to oral treatment, although to a minor extent (approximately 2-fold higher drug concentrations in lavage). Vaginal tissue drug levels were generally low for all treatments, while systemic drug exposure was negligible in the case of fibers. These data suggest that proposed fibers may provide an interesting alternative or an ancillary option to oral PrEP in women.
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Affiliation(s)
- Rute Nunes
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra, Portugal
| | - Sarah Bogas
- CF-UM-UP - Centro de Física das Universidades do Minho e Porto, Departamento de Física, Universidade do Minho, Braga, Portugal
| | - Maria João Faria
- CF-UM-UP - Centro de Física das Universidades do Minho e Porto, Departamento de Física, Universidade do Minho, Braga, Portugal
| | | | - Marlene Lúcio
- CF-UM-UP - Centro de Física das Universidades do Minho e Porto, Departamento de Física, Universidade do Minho, Braga, Portugal; CBMA - Centro de Biologia Molecular e Ambiental, Universidade do Minho, Braga, Portugal.
| | - Teresa Viseu
- CF-UM-UP - Centro de Física das Universidades do Minho e Porto, Departamento de Física, Universidade do Minho, Braga, Portugal
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra, Portugal
| | - José das Neves
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra, Portugal.
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14
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Rostamitabar M, Abdelgawad AM, Jockenhoevel S, Ghazanfari S. Drug-Eluting Medical Textiles: From Fiber Production and Textile Fabrication to Drug Loading and Delivery. Macromol Biosci 2021; 21:e2100021. [PMID: 33951278 DOI: 10.1002/mabi.202100021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/30/2021] [Indexed: 12/16/2022]
Abstract
Drug-eluting medical textiles have recently gained great attention to be used in different applications due to their cost effectiveness and unique physical and chemical properties. Using various fiber production and textile fabrication technologies, fibrous constructs with the required properties for the target drug delivery systems can be designed and fabricated. This review summarizes the current advances in the fabrication of drug-eluting medical textiles. Different fiber production methods such as melt-, wet-, and electro-spinning, and textile fabrication techniques such as knitting and weaving are explained. Moreover, various loading processes of bioactive agents to obtain drug-loaded fibrous structures with required physicochemical and morphological properties, drug delivery mechanisms, and drug release kinetics are discussed. Finally, the current applications of drug-eluting fibrous systems in wound care, tissue engineering, and transdermal drug delivery are highlighted.
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Affiliation(s)
- Matin Rostamitabar
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen, 6167 RD, The Netherlands.,Department of Biohybrid and Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, 52074, Germany
| | - Abdelrahman M Abdelgawad
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen, 6167 RD, The Netherlands
| | - Stefan Jockenhoevel
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen, 6167 RD, The Netherlands.,Department of Biohybrid and Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, 52074, Germany
| | - Samaneh Ghazanfari
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Geleen, 6167 RD, The Netherlands.,Department of Biohybrid and Medical Textiles (BioTex), AME-Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, 52074, Germany
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15
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Minooei F, Fried JR, Fuqua JL, Palmer KE, Steinbach-Rankins JM. In vitro Study on Synergistic Interactions Between Free and Encapsulated Q-Griffithsin and Antiretrovirals Against HIV-1 Infection. Int J Nanomedicine 2021; 16:1189-1206. [PMID: 33623382 PMCID: PMC7894819 DOI: 10.2147/ijn.s287310] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 12/19/2020] [Indexed: 12/31/2022] Open
Abstract
Introduction Human immunodeficiency virus (HIV) remains a persistent global challenge, impacting 38 million people worldwide. Antiretrovirals (ARVs) including tenofovir (TFV), raltegravir (RAL), and dapivirine (DAP) have been developed to prevent and treat HIV-1 via different mechanisms of action. In parallel, a promising biological candidate, griffithsin (GRFT), has demonstrated outstanding preclinical safety and potency against HIV-1. While ARV co-administration has been shown to enhance virus inhibition, synergistic interactions between ARVs and the oxidation-resistant variant of GRFT (Q-GRFT) have not yet been explored. Here, we co-administered Q-GRFT with TFV, RAL, and DAP, in free and encapsulated forms, to identify unique protein-drug synergies. Methods Nanoparticles (NPs) were synthesized using a single or double-emulsion technique and release from each formulation was assessed in simulated vaginal fluid. Next, each ARV, in free and encapsulated forms, was co-administered with Q-GRFT or Q-GRFT NPs to evaluate the impact of co-administration in HIV-1 pseudovirus assays, and the combination indices were calculated to identify synergistic interactions. Using the most synergistic formulations, we investigated the effect of agent incorporation in NP-fiber composites on release properties. Finally, NP safety was assessed in vitro using MTT assay. Results All active agents were encapsulated in NPs with desirable encapsulation efficiency (15–100%), providing ~20% release over 2 weeks. The co-administration of free Q-GRFT with each free ARV resulted in strong synergistic interactions, relative to each agent alone. Similarly, Q-GRFT NP and ARV NP co-administration resulted in synergy across all formulations, with the most potent interactions between encapsulated Q-GRFT and DAP. Furthermore, the incorporation of Q-GRFT and DAP in NP-fiber composites resulted in burst release of DAP and Q-GRFT with a second phase of Q-GRFT release. Finally, all NP formulations exhibited safety in vitro. Conclusions This work suggests that Q-GRFT and ARV co-administration in free or encapsulated forms may improve efficacy in achieving prophylaxis.
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Affiliation(s)
- Farnaz Minooei
- Department of Chemical Engineering, University of Louisville Speed School of Engineering, Louisville, KY, USA
| | - Joel R Fried
- Department of Chemical Engineering, University of Louisville Speed School of Engineering, Louisville, KY, USA
| | - Joshua L Fuqua
- Department of Bioengineering, University of Louisville Speed School of Engineering, Louisville, KY, USA.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, USA.,Center for Predictive Medicine, University of Louisville, Louisville, KY, USA
| | - Kenneth E Palmer
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, USA.,Center for Predictive Medicine, University of Louisville, Louisville, KY, USA.,Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Jill M Steinbach-Rankins
- Department of Bioengineering, University of Louisville Speed School of Engineering, Louisville, KY, USA.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, USA.,Center for Predictive Medicine, University of Louisville, Louisville, KY, USA.,Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, KY, USA
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16
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Notario-Pérez F, Cazorla-Luna R, Martín-Illana A, Galante J, Ruiz-Caro R, Sarmento B, das Neves J, Veiga MD. Influence of Plasticizers on the pH-Dependent Drug Release and Cellular Interactions of Hydroxypropyl Methylcellulose/Zein Vaginal Anti-HIV Films Containing Tenofovir. Biomacromolecules 2021; 22:938-948. [PMID: 33405910 DOI: 10.1021/acs.biomac.0c01609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Vaginal films featuring the pH-dependent release of tenofovir (TFV) were developed for the prevention of sexual transmission of human immunodeficiency syndrome (HIV). Films based on hydroxypropyl methylcellulose and zein were prepared incorporating different plasticizers [oleic acid, lactic acid, glycerol, and polyethylene glycol 400 (PEG)] and evaluated for in vitro drug release in an acidic simulated vaginal fluid (pH 4.2) and a slightly alkaline mixture of simulated seminal and vaginal fluids (pH 7.5). Results revealed that optimal biphasic TFV release was possible with proper combination of plasticizers (PEG and oleic acid, 1:7 w/w) and by adjusting the plasticizer/matrix-forming material ratio. The films had similar or higher levels of TFV associated with genital epithelial cells (Ca Ski or HEC-1-A cells) but lower drug permeability compared to the free drug. These data confirm that films have the potential to achieve suitable mucosal levels of TFV with low systemic exposure. The films developed could protect women from HIV sexual transmission.
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Affiliation(s)
- Fernando Notario-Pérez
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Raúl Cazorla-Luna
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Araceli Martín-Illana
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Joana Galante
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Roberto Ruiz-Caro
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Bruno Sarmento
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal
| | - José das Neves
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.,CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal
| | - María-Dolores Veiga
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
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17
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Luo H, Jie T, Zheng L, Huang C, Chen G, Cui W. Electrospun Nanofibers for Cancer Therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1295:163-190. [PMID: 33543460 DOI: 10.1007/978-3-030-58174-9_8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Lately, a remarkable progress has been recorded in the field of electrospinning for the preparation of numerous types of nanofiber scaffolds. These scaffolds present some remarkable features including high loading capacity and encapsulation efficiency, superficial area and porosity, potential for modification, structure for the co-delivery of various therapies, and cost-effectiveness. Their present and future applications for cancer diagnosis and treatment are promising and pioneering. In this chapter we provide a comprehensive overview of electrospun nanofibers (ESNFs) applications in cancer diagnosis and treatment, covering diverse types of drug-loaded electrospun nanofibers.
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Affiliation(s)
- Huanhuan Luo
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Tianyang Jie
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Zheng
- The central laboratory, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Chenglong Huang
- Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Gang Chen
- Jiaxing Key Laboratory of Basic Research and Clinical Translation on Orthopedic Biomaterials, Department of Orthopaedics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Wenguo Cui
- Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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18
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Yadavalli T, Mallick S, Patel P, Koganti R, Shukla D, Date AA. Pharmaceutically Acceptable Carboxylic Acid-Terminated Polymers Show Activity and Selectivity against HSV-1 and HSV-2 and Synergy with Antiviral Drugs. ACS Infect Dis 2020; 6:2926-2937. [PMID: 33078609 DOI: 10.1021/acsinfecdis.0c00368] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Polyanionic macromolecules including carboxylate-terminated polymers (polycarboxylates) are capable of inhibiting sexually transmitted viruses such as human immunodeficiency virus (HIV) and herpes simplex virus (HSV). Cellulose acetate phthalate (CAP), a pharmaceutically acceptable pH-sensitive polycarboxylate polymer, showed promising prophylactic activity against HIV and HSV, but the instability of CAP in an aqueous environment prevented its clinical development. Interestingly, several pharmaceutically acceptable polycarboxylates have features similar to CAP with an aqueous stability significantly higher than that of CAP. However, their activity against sexually transmitted viruses remains unexplored. Here, we evaluate the activity of various polycarboxylates such as polyvinyl acetate phthalate (PVAP), various grades of hydroxypropyl methylcellulose phthalate (HPMCP-50, HPMCP-55, and HPMCP-55S), and various grades of methacrylic acid copolymers (Eudragit L100-55, Eudragit L100, Eudragit S100, and Kollicoat MAE 100P) against HSV. We, for the first time, demonstrate that PVAP, HPMCP-55S, and Eudragit S100 have activity and selectivity against HSV-1 and HSV-2. Further, we report that polycarboxylates can be easily transformed into nanoparticles (NPs) and in the nanoparticulate form, they show similar or enhanced activity against HSV. Finally, using PVAP NPs, as a model, we demonstrate using in vitro HSV therapy studies that polycarboxylate NPs are capable of synergizing with antiviral drugs such as acyclovir (ACV), tenofovir, and tenofovir disoproxil fumarate. Thus, pharmaceutically acceptable carboxylic acid-terminated polymers and their NPs have the potential to be developed into topical formulations for the prevention and treatment of HSV infection.
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Affiliation(s)
- Tejabhiram Yadavalli
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Sudipta Mallick
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawaii Hilo, Hilo, Hawaii 96720, United States
| | - Pratikkumar Patel
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawaii Hilo, Hilo, Hawaii 96720, United States
| | - Raghuram Koganti
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Deepak Shukla
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, Illinois 60612, United States
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, Illinois 60612, United States
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Abhijit A. Date
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawaii Hilo, Hilo, Hawaii 96720, United States
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Rehman A, Jafari SM, Tong Q, Riaz T, Assadpour E, Aadil RM, Niazi S, Khan IM, Shehzad Q, Ali A, Khan S. Drug nanodelivery systems based on natural polysaccharides against different diseases. Adv Colloid Interface Sci 2020; 284:102251. [PMID: 32949812 DOI: 10.1016/j.cis.2020.102251] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 12/14/2022]
Abstract
Drug nanodelivery systems (DNDSs) are fascinated cargos to achieve outstanding therapeutic results of various drugs or natural bioactive compounds owing to their unique structures. The efficiency of several pharmaceutical drugs or natural bioactive ingredients is restricted because of their week bioavailability, poor bioaccessibility and pharmacokinetics after orally pathways. In order to handle such constraints, usage of native/natural polysaccharides (NPLS) in fabrication of DNDSs has gained more popularity in the arena of nanotechnology for controlled drug delivery to enhance safety, biocompatibility, better retention time, bioavailability, lower toxicity and enhanced permeability. The main commonly used NPLS in nanoencapsulation systems include chitosan, pectin, alginates, cellulose, starches, and gums recognized as potential materials for fabrication of cargos. Herein, this review is centered on different polysaccharide-based nanocarriers including nanoemulsions, nanohydrogels, nanoliposomes, nanoparticles and nanofibers, which have already served as encouraging candidates for entrapment of therapeutic drugs as well as for their sustained controlled release. Furthermore, the current article explicitly offers comprehensive details regarding application of NPLS-based nanocarriers encapsulating several drugs intended for the handling of numerous disorders, including diabetes, cancer, HIV, malaria, cardiovascular and respiratory as well as skin diseases.
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Affiliation(s)
- Abdur Rehman
- State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, Wuxi, China
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.
| | - Qunyi Tong
- State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, Wuxi, China.
| | - Tahreem Riaz
- State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, Wuxi, China
| | - Elham Assadpour
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology, Faculty of Food Nutrition and Home Sciences, University of Agriculture, Faisalabad 38000, Pakistan
| | - Sobia Niazi
- State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, Wuxi, China
| | - Imran Mahmood Khan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, Wuxi, China
| | - Qayyum Shehzad
- State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, Wuxi, China
| | - Ahmad Ali
- State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, Wuxi, China
| | - Sohail Khan
- National Institute of Food Science and Technology, Faculty of Food Nutrition and Home Sciences, University of Agriculture, Faisalabad 38000, Pakistan
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20
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Rapid-Release Griffithsin Fibers for Dual Prevention of HSV-2 and HIV-1 Infections. Antimicrob Agents Chemother 2020; 64:AAC.02139-19. [PMID: 32229493 DOI: 10.1128/aac.02139-19] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 03/21/2020] [Indexed: 12/18/2022] Open
Abstract
The biologic griffithsin (GRFT) has recently emerged as a candidate to safely prevent sexually transmitted infections (STIs), including human immunodeficiency virus type 1 (HIV-1) and herpes simplex virus 2 (HSV-2). However, to date, there are few delivery platforms that are available to effectively deliver biologics to the female reproductive tract (FRT). The goal of this work was to evaluate rapid-release polyethylene oxide (PEO), polyvinyl alcohol (PVA), and polyvinylpyrrolidone (PVP) fibers that incorporate GRFT in in vitro (HIV-1 and HSV-2) and in vivo (HSV-2) infection models. GRFT loading was determined via enzyme-linked immunosorbent assay (ELISA), and the bioactivity of GRFT fibers was assessed using in vitro HIV-1 pseudovirus and HSV-2 plaque assays. Afterwards, the efficacy of GRFT fibers was assessed in a murine model of lethal HSV-2 infection. Finally, murine reproductive tracts and vaginal lavage samples were evaluated for histology and cytokine expression, 24 and 72 h after fiber administration, to determine safety. All rapid-release formulations achieved high levels of GRFT incorporation and were completely efficacious against in vitro HIV-1 and HSV-2 infections. Importantly, all rapid-release GRFT fibers provided potent protection in a murine model of HSV-2 infection. Moreover, histology and cytokine levels, evaluated from collected murine reproductive tissues and vaginal lavage samples treated with blank fibers, showed no increased cytokine production or histological aberrations, demonstrating the preliminary safety of rapid-release GRFT fibers in vaginal tissue.
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Parham S, Kharazi AZ, Bakhsheshi-Rad HR, Ghayour H, Ismail AF, Nur H, Berto F. Electrospun Nano-Fibers for Biomedical and Tissue Engineering Applications: A Comprehensive Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2153. [PMID: 32384813 PMCID: PMC7254207 DOI: 10.3390/ma13092153] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 01/03/2023]
Abstract
Pharmaceutical nano-fibers have attracted widespread attention from researchers for reasons such as adaptability of the electro-spinning process and ease of production. As a flexible method for fabricating nano-fibers, electro-spinning is extensively used. An electro-spinning unit is composed of a pump or syringe, a high voltage current supplier, a metal plate collector and a spinneret. Optimization of the attained nano-fibers is undertaken through manipulation of the variables of the process and formulation, including concentration, viscosity, molecular mass, and physical phenomenon, as well as the environmental parameters including temperature and humidity. The nano-fibers achieved by electro-spinning can be utilized for drug loading. The mixing of two or more medicines can be performed via electro-spinning. Facilitation or inhibition of the burst release of a drug can be achieved by the use of the electro-spinning approach. This potential is anticipated to facilitate progression in applications of drug release modification and tissue engineering (TE). The present review aims to focus on electro-spinning, optimization parameters, pharmacological applications, biological characteristics, and in vivo analyses of the electro-spun nano-fibers. Furthermore, current developments and upcoming investigation directions are outlined for the advancement of electro-spun nano-fibers for TE. Moreover, the possible applications, complications and future developments of these nano-fibers are summarized in detail.
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Affiliation(s)
- Shokoh Parham
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Medical Technology, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran; (S.P.); (A.Z.K.)
| | - Anousheh Zargar Kharazi
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Medical Technology, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran; (S.P.); (A.Z.K.)
| | - Hamid Reza Bakhsheshi-Rad
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;
| | - Hamid Ghayour
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran;
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Center (AMTEC), Universiti Teknologi Malaysia, Skudai, Johor Bahru, Johor 81310, Malaysia;
| | - Hadi Nur
- Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, UTM Skudai, Johor 81310, Malaysia;
- Central Laboratory of Minerals and Advanced Materials, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Malang 65145, Indonesia
| | - Filippo Berto
- Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
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Miranda CS, Ribeiro ARM, Homem NC, Felgueiras HP. Spun Biotextiles in Tissue Engineering and Biomolecules Delivery Systems. Antibiotics (Basel) 2020; 9:E174. [PMID: 32290536 PMCID: PMC7235791 DOI: 10.3390/antibiotics9040174] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/03/2020] [Accepted: 04/10/2020] [Indexed: 11/24/2022] Open
Abstract
Nowadays, tissue engineering is described as an interdisciplinary field that combines engineering principles and life sciences to generate implantable devices to repair, restore and/or improve functions of injured tissues. Such devices are designed to induce the interaction and integration of tissue and cells within the implantable matrices and are manufactured to meet the appropriate physical, mechanical and physiological local demands. Biodegradable constructs based on polymeric fibers are desirable for tissue engineering due to their large surface area, interconnectivity, open pore structure, and controlled mechanical strength. Additionally, biodegradable constructs are also very sought-out for biomolecule delivery systems with a target-directed action. In the present review, we explore the properties of some of the most common biodegradable polymers used in tissue engineering applications and biomolecule delivery systems and highlight their most important uses.
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Affiliation(s)
| | | | | | - Helena P. Felgueiras
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal; (C.S.M.); (A.R.M.R.); (N.C.H.)
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23
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Tyo KM, Lasnik AB, Zhang L, Mahmoud M, Jenson AB, Fuqua JL, Palmer KE, Steinbach-Rankins JM. Sustained-release Griffithsin nanoparticle-fiber composites against HIV-1 and HSV-2 infections. J Control Release 2020; 321:84-99. [PMID: 32035194 DOI: 10.1016/j.jconrel.2020.02.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 02/01/2020] [Accepted: 02/03/2020] [Indexed: 02/07/2023]
Abstract
Human immunodeficiency virus (HIV-1) and herpes simplex virus 2 (HSV-2) affect hundreds of millions of people worldwide. The antiviral lectin, Griffithsin (GRFT), has been shown to be both safe and efficacious against HSV-2 and HIV-1 infections in vivo. The goal of this work was to develop a multilayered nanoparticle (NP)-electrospun fiber (EF) composite to provide sustained-release of GRFT, and to examine its safety and efficacy in a murine model of lethal HSV-2 infection. Composites were fabricated from polycaprolactone (PCL) fibers surrounding polyethylene oxide (PEO) fibers that incorporated methoxy poly(ethylene glycol)-b-poly(lactide-co-glycolide) (mPEG-PLGA) GRFT NPs. GRFT loading and release were determined via ELISA, showing that NP-EF composites achieved high GRFT loading, and provided sustained-release of GRFT for up to 90 d. The in vitro efficacy of GRFT NP-EFs was assessed using HIV-1 pseudovirus assays, demonstrating complete in vitro protection against HIV-1 infection. Additionally, sustained-release NP-EFs, administered 24 h prior to infection, prevented against a lethal dose of HSV-2 infection in a murine model. In parallel, histology and cytokine expression from murine reproductive tracts and vaginal lavages collected 24 and 72 h post-administration were similar to untreated mice, suggesting that NP-EF composites may be a promising and safe sustained-delivery platform to prevent HSV-2 infection. Future work will evaluate the ability to provide prolonged protection against multiple virus challenges, and different administration times with respect to infection.
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Affiliation(s)
- Kevin M Tyo
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Amanda B Lasnik
- Center for Predictive Medicine, Louisville, KY, United States
| | - Longyun Zhang
- Center for Predictive Medicine, Louisville, KY, United States; Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States
| | - Mohamed Mahmoud
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Alfred B Jenson
- James Graham Brown Cancer Center, University of Louisville School of Medicine, University of Louisville, Louisville, KY, United States
| | - Joshua L Fuqua
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Kenneth E Palmer
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States; James Graham Brown Cancer Center, University of Louisville School of Medicine, University of Louisville, Louisville, KY, United States; Department of Microbiology and Immunology, School of Medicine, University of Louisville, KY, United States
| | - Jill M Steinbach-Rankins
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States; James Graham Brown Cancer Center, University of Louisville School of Medicine, University of Louisville, Louisville, KY, United States; Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States; Department of Microbiology and Immunology, School of Medicine, University of Louisville, KY, United States.
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24
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Jaymand M. Chemically Modified Natural Polymer-Based Theranostic Nanomedicines: Are They the Golden Gate toward a de Novo Clinical Approach against Cancer? ACS Biomater Sci Eng 2019; 6:134-166. [DOI: 10.1021/acsbiomaterials.9b00802] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6715847141, Iran
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25
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In vitro release testing methods for drug-releasing vaginal rings. J Control Release 2019; 313:54-69. [PMID: 31626862 DOI: 10.1016/j.jconrel.2019.10.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 10/05/2019] [Accepted: 10/08/2019] [Indexed: 12/28/2022]
Abstract
Drug-releasing vaginal rings are torus-shaped devices, generally fabricated from thermoplastic polymers or silicone elastomers, used to administer pharmaceutical drugs to the human vagina for periods typically ranging from three weeks to twelve months. One of the most important product performance tests for vaginal rings is the in vitro release test. Although it has been fifty years since a vaginal ring device was first described in the scientific literature, and despite seven drug-releasing vaginal rings having been approved for market, there is no universally accepted method for testing in vitro drug release, and only one non-compendial shaking incubator method (for the estradiol-releasing ring Estring®) is described in the US Food and Drug Administration's Dissolution Methods Database. Here, for the first time, we critically review the diverse range of test methods that have been described in the scientific literature for testing in vitro release of drug-releasing vaginal rings. Issues around in vitro-in vivo correlation and modelling of in vitro release data are also discussed.
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Nangare S, Jadhav N, Ghagare P, Muthane T. Pharmaceutical applications of electrospinning. ANNALES PHARMACEUTIQUES FRANÇAISES 2019; 78:1-11. [PMID: 31564424 DOI: 10.1016/j.pharma.2019.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 07/06/2019] [Accepted: 07/08/2019] [Indexed: 12/20/2022]
Abstract
Development of tailor-made pharmaceutical nanofibers has gained vital prominence due to ease of fabrication and versatility of electrospinning (ES). ES is one of the flexible and, wonderful strategies for the fabrication of nanofibers. ES unit comprises a supplier of high voltage current, a syringe (pump), spinneret and a metal plate collector. The obtained nanofibers are optimized by manipulating process and formulation variables Viz: polymer/drug resolution (viscosity, concentration, physical phenomenon, molecular mass) and the environmental conditions (humidity, temperature). The electrospun nanofibers can be used for loading of the drug, amorphization of a crystalline API and an increase in its physical storage stability. ES technique enables mixing of two or more API and may facilitate or inhibit the burst release of a drug, along with attainment of modified release. Additionally, nanofibers demonstrate a reduction in overall dose needed for the therapeutic activity, by improving dissolution and bioavailability of the drugs. The current review is an attempt to focus on ES method, the optimization parameters, and pharmaceutical applications of the electrospun nanofibers.
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Affiliation(s)
- Sopan Nangare
- Department of Pharmaceutics, Bharati Vidyapeeth College of Pharmacy, 127 SOC. NO. 1. R. K. Nagar, 416013 Kolhapur, India
| | - Namdeo Jadhav
- Department of Pharmaceutics, Bharati Vidyapeeth College of Pharmacy, 127 SOC. NO. 1. R. K. Nagar, 416013 Kolhapur, India.
| | - Pravin Ghagare
- Department of Pharmaceutics, Bharati Vidyapeeth College of Pharmacy, 127 SOC. NO. 1. R. K. Nagar, 416013 Kolhapur, India
| | - Tejashwini Muthane
- Department of Pharmaceutics, Bharati Vidyapeeth College of Pharmacy, 127 SOC. NO. 1. R. K. Nagar, 416013 Kolhapur, India
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27
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Hart CW, Joanis C, Hartmann M, Milford C, Smit J, Beksinska M, Rambally-Greener L, Pienaar J, Mabude Z, Butterworth GAM, Sokal D, Jenkins D. Acceptability and performance of a nonwoven device for vaginal drug delivery among women and their male partners in KwaZulu-Natal, South Africa. EUR J CONTRACEP REPR 2019; 24:390-398. [PMID: 31517545 DOI: 10.1080/13625187.2019.1656188] [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: 12/29/2022]
Abstract
Background: Multipurpose prevention technologies are needed to provide protection against HIV and sexually transmitted infections. Gel-based vaginal microbicides inserted via an applicator are prone to leakage. A novel device for vaginal drug delivery was developed to contain gel-based formulations, aiming to improve gel retention and reduce leakage. The objectives of this study were to assess acceptability and performance of a nonwoven vaginal delivery device. Methods: A nonwoven vaginal delivery device was prepared, pre-saturated with a commercially available water-based lubricant, with a finger pocket for insertion and string for removal. Quantitative and qualitative methods were used to collect data from interviews with 40 women and 10 male partners recruited from a sexual and reproductive health clinic in Durban, KwaZulu-Natal, South Africa. Women wore one device in the clinic and one device overnight or with their partner during intercourse. The primary endpoint was acceptability including comfort, ease of insertion and removal, and opinions on device attributes. Results: Most women said the device was 'easy' to insert and remove. Six women reported leakage after insertion and 34 reported having sexual intercourse while wearing the device. One woman was lost-to-follow-up and five women only wore the device overnight because their partners did not agree to intercourse with the inserted device. The best-liked attribute was the device's lubrication (22 women, 7 men); the least-liked was the removal string (9 women, 8 men). Conclusions: Data are promising for further development of this nonwoven device for vaginal drug delivery. Plain English summary Multipurpose prevention technologies (MPTs) that protect against HIV and sexually transmitted infections (STIs) are urgently needed. A variety of vaginal gel-based products are actively being researched; however, these products can often have challenges with vaginal leakage and retention. This research investigates the acceptability and performance of a nonwoven device to deliver vaginal gel formulations. The gel used in this study was a currently available marketed personal lubricant. In South Africa, 40 women (and 10 male partners) were recruited and given the opportunity to comment on various device attributes after insertion, overnight wear and sexual intercourse with their male partners. Generally, participants found the device easy to use and acceptable, where many factors possibly contributed to the device's acceptability (i.e., similarity to tampons, saturation with lubricant, minimal leakage, ease of insertion, comfort during intercourse and the male partners' willingness to have vaginal intercourse with the device in place). Further studies of the vaginal delivery device for acceptability, safety and efficacy using a gel-based formulation with an active ingredient are warranted.
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Affiliation(s)
- Catherine W Hart
- Clinical Sciences and Product Quality and Compliance Department, FHI 360 , Durham , NC , USA
| | | | - Miriam Hartmann
- Women's Global Health Imperative, RTI International , San Francisco , CA , USA
| | - Cecilia Milford
- Maternal, Adolescent and Child Health Research Unit (MRU), Department of Obstetics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand , Durban , South Africa
| | - Jennifer Smit
- Maternal, Adolescent and Child Health Research Unit (MRU), Department of Obstetics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand , Durban , South Africa
| | - Mags Beksinska
- Maternal, Adolescent and Child Health Research Unit (MRU), Department of Obstetics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand , Durban , South Africa
| | - Letitia Rambally-Greener
- Maternal, Adolescent and Child Health Research Unit (MRU), Department of Obstetics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand , Durban , South Africa
| | - Jacqui Pienaar
- Maternal, Adolescent and Child Health Research Unit (MRU), Department of Obstetics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand , Durban , South Africa
| | - Zonke Mabude
- Maternal, Adolescent and Child Health Research Unit (MRU), Department of Obstetics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand , Durban , South Africa
| | | | - David Sokal
- Clinical Sciences and Product Quality and Compliance Department, FHI 360 , Durham , NC , USA
| | - David Jenkins
- Clinical Sciences and Product Quality and Compliance Department, FHI 360 , Durham , NC , USA
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28
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Effect on in-vitro release of individual and dual contraceptive drug loading from gelatin electrospun fibers. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.03.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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29
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Tyo KM, Minooei F, Curry KC, NeCamp SM, Graves DL, Fried JR, Steinbach-Rankins JM. Relating Advanced Electrospun Fiber Architectures to the Temporal Release of Active Agents to Meet the Needs of Next-Generation Intravaginal Delivery Applications. Pharmaceutics 2019; 11:E160. [PMID: 30987206 PMCID: PMC6523330 DOI: 10.3390/pharmaceutics11040160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 02/07/2023] Open
Abstract
Electrospun fibers have emerged as a relatively new delivery platform to improve active agent retention and delivery for intravaginal applications. While uniaxial fibers have been explored in a variety of applications including intravaginal delivery, the consideration of more advanced fiber architectures may offer new options to improve delivery to the female reproductive tract. In this review, we summarize the advancements of electrospun coaxial, multilayered, and nanoparticle-fiber architectures utilized in other applications and discuss how different material combinations within these architectures provide varied durations of release, here categorized as either transient (within 24 h), short-term (24 h to one week), or sustained (beyond one week). We seek to systematically relate material type and fiber architecture to active agent release kinetics. Last, we explore how lessons derived from these architectures may be applied to address the needs of future intravaginal delivery platforms for a given prophylactic or therapeutic application. The overall goal of this review is to provide a summary of different fiber architectures that have been useful for active agent delivery and to provide guidelines for the development of new formulations that exhibit release kinetics relevant to the time frames and the diversity of active agents needed in next-generation multipurpose applications.
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Affiliation(s)
- Kevin M Tyo
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
- Center for Predictive Medicine, Louisville, KY 40202, USA.
| | - Farnaz Minooei
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Keegan C Curry
- Department of Biology, University of Louisville, Louisville, KY 40292, USA.
| | - Sarah M NeCamp
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Danielle L Graves
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Joel R Fried
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Jill M Steinbach-Rankins
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
- Center for Predictive Medicine, Louisville, KY 40202, USA.
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
- Department of Microbiology and Immunology, School of Medicine, University of Louisville, Louisville, KY 40292, USA.
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30
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Mesquita L, Galante J, Nunes R, Sarmento B, das Neves J. Pharmaceutical Vehicles for Vaginal and Rectal Administration of Anti-HIV Microbicide Nanosystems. Pharmaceutics 2019; 11:pharmaceutics11030145. [PMID: 30917532 PMCID: PMC6472048 DOI: 10.3390/pharmaceutics11030145] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/18/2019] [Accepted: 03/22/2019] [Indexed: 12/27/2022] Open
Abstract
Prevention strategies play a key role in the fight against HIV/AIDS. Vaginal and rectal microbicides hold great promise in tackling sexual transmission of HIV-1, but effective and safe products are yet to be approved and made available to those in need. While most efforts have been placed in finding and testing suitable active drug candidates to be used in microbicide development, the last decade also saw considerable advances in the design of adequate carrier systems and formulations that could lead to products presenting enhanced performance in protecting from infection. One strategy demonstrating great potential encompasses the use of nanosystems, either with intrinsic antiviral activity or acting as carriers for promising microbicide drug candidates. Polymeric nanoparticles, in particular, have been shown to be able to enhance mucosal distribution and retention of promising antiretroviral compounds. One important aspect in the development of nanotechnology-based microbicides relates to the design of pharmaceutical vehicles that allow not only convenient vaginal and/or rectal administration, but also preserve or even enhance the performance of nanosystems. In this manuscript, we revise relevant work concerning the selection of vaginal/rectal dosage forms and vehicle formulation development for the administration of microbicide nanosystems. We also pinpoint major gaps in the field and provide pertinent hints for future work.
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Affiliation(s)
- Letícia Mesquita
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal.
| | - Joana Galante
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal.
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal.
| | - Rute Nunes
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal.
| | - Bruno Sarmento
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal.
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, 4585-116 Gandra, Portugal.
| | - José das Neves
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.
- INEB-Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal.
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, 4585-116 Gandra, Portugal.
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Liu Z, Ma W, Zhang M, Zhang Q, Xiong R, Huang C. Fabrication of superhydrophobic electrospun polyimide nanofibers modified with polydopamine and polytetrafluoroethylene nanoparticles for oil–water separation. J Appl Polym Sci 2019. [DOI: 10.1002/app.47638] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Zhongche Liu
- College of Chemical Engineering, Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agroforest Biomass, Jiangsu Key Laboratory of Biomass‐Based Green Fuels and ChemicalsNanjing Forestry University Nanjing 210037 People's Republic of China
| | - Wenjing Ma
- College of Chemical Engineering, Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agroforest Biomass, Jiangsu Key Laboratory of Biomass‐Based Green Fuels and ChemicalsNanjing Forestry University Nanjing 210037 People's Republic of China
| | - Mengjie Zhang
- College of Chemical Engineering, Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agroforest Biomass, Jiangsu Key Laboratory of Biomass‐Based Green Fuels and ChemicalsNanjing Forestry University Nanjing 210037 People's Republic of China
| | - Qilu Zhang
- School of Materials Science and EngineeringXi'an Jiaotong University Xi'an 710049 People's Republic of China
| | - Ranhua Xiong
- Lab General Biochemistry and Physical Pharmacy, Department of PharmaceuticsGhent University Belgium
| | - Chaobo Huang
- College of Chemical Engineering, Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agroforest Biomass, Jiangsu Key Laboratory of Biomass‐Based Green Fuels and ChemicalsNanjing Forestry University Nanjing 210037 People's Republic of China
- Laboratory of Biopolymer‐Based Functional Materials, Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing Forestry University Nanjing 210037 People's Republic of China
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32
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Abstract
Paramyxoviruses, including human parainfluenza virus type 3, are internalized into host cells by fusion between viral and target cell membranes. The receptor binding protein, hemagglutinin-neuraminidase (HN), and the fusion protein (F) facilitate viral fusion and entry into cells through a process involving HN activation by receptor binding, which triggers conformational changes in F to activate it to reach its fusion-competent state. Interfering with this process through premature activation of the F protein may be an effective antiviral strategy in vitro. We identified and optimized small compounds that implement this antiviral strategy through an interaction with HN, causing HN to activate F in an untimely fashion. To address that mechanism, we produced novel anti-HPIV3 F conformation-specific antibodies that can be used to assess the functionality of compounds designed to induce F activation. Both the novel antiviral compounds that we present and these newly characterized postfusion antibodies are novel tools for the exploration and development of antiviral approaches. Paramyxoviruses, specifically, the childhood pathogen human parainfluenza virus type 3, are internalized into host cells following fusion between the viral and target cell membranes. The receptor binding protein, hemagglutinin (HA)-neuraminidase (HN), and the fusion protein (F) facilitate viral fusion and entry into the cell through a coordinated process involving HN activation by receptor binding, which triggers conformational changes in the F protein to activate it to reach its fusion-competent state. Interfering with this process through premature activation of the F protein has been shown to be an effective antiviral strategy in vitro. Conformational changes in the F protein leading to adoption of the postfusion form of the protein—prior to receptor engagement of HN at the host cell membrane—render the virus noninfectious. We previously identified a small compound (CSC11) that implements this antiviral strategy through an interaction with HN, causing HN to activate F in an untimely process. To assess the functionality of such compounds, it is necessary to verify that the postfusion state of F has been achieved. As demonstrated by Melero and colleagues, soluble forms of the recombinant postfusion pneumovirus F proteins and of their six helix bundle (6HB) motifs can be used to generate postfusion-specific antibodies. We produced novel anti-HPIV3 F conformation-specific antibodies that can be used to assess the functionality of compounds designed to induce F activation. In this study, using systematic chemical modifications of CSC11, we synthesized a more potent derivative of this compound, CM9. Much like CSC11, CM9 causes premature triggering of the F protein through an interaction with HN prior to receptor engagement, thereby preventing fusion and subsequent infection. In addition to validating the potency of CM9 using plaque reduction, fusion inhibition, and binding avidity assays, we confirmed the transition to a postfusion conformation of F in the presence of CM9 using our novel anti-HPIV3 conformation-specific antibodies. We present both CM9 and these newly characterized postfusion antibodies as novel tools to explore and develop antiviral approaches. In turn, these advances in both our molecular toolset and our understanding of HN-F interaction will support development of more-effective antivirals. Combining the findings described here with our recently described physiologically relevant ex vivo system, we have the potential to inform the development of therapeutics to block viral infection.
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Rasouli R, Barhoum A, Bechelany M, Dufresne A. Nanofibers for Biomedical and Healthcare Applications. Macromol Biosci 2018; 19:e1800256. [DOI: 10.1002/mabi.201800256] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 10/30/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Rahimeh Rasouli
- Department of Medical NanotechnologyTehran University of Medical Sciences—International Campus 14177‐43373 Tehran Iran
| | - Ahmed Barhoum
- Faculty of ScienceChemistry DepartmentHelwan University 11795 Helwan Cairo Egypt
- Institut Européen des Membranes (IEM UMR 5635)ENSCMCNRSUniversity of Montpellier 34090 Montpellier France
| | - Mikhael Bechelany
- Institut Européen des Membranes (IEM UMR 5635)ENSCMCNRSUniversity of Montpellier 34090 Montpellier France
| | - Alain Dufresne
- LGP2, Grenoble INP, CNRSUniversité Grenoble Alpes F‐38000 Grenoble France
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Rasouli R, Barhoum A, Uludag H. A review of nanostructured surfaces and materials for dental implants: surface coating, patterning and functionalization for improved performance. Biomater Sci 2018; 6:1312-1338. [PMID: 29744496 DOI: 10.1039/c8bm00021b] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The emerging field of nanostructured implants has enormous scope in the areas of medical science and dental implants. Surface nanofeatures provide significant potential solutions to medical problems by the introduction of better biomaterials, improved implant design, and surface engineering techniques such as coating, patterning, functionalization and molecular grafting at the nanoscale. This review is of an interdisciplinary nature, addressing the history and development of dental implants and the emerging area of nanotechnology in dental implants. After a brief introduction to nanotechnology in dental implants and the main classes of dental implants, an overview of different types of nanomaterials (i.e. metals, metal oxides, ceramics, polymers and hydrides) used in dental implant together with their unique properties, the influence of elemental compositions, and surface morphologies and possible applications are presented from a chemical point of view. In the core of this review, the dental implant materials, physical and chemical fabrication techniques and the role of nanotechnology in achieving ideal dental implants have been discussed. Finally, the critical parameters in dental implant design and available data on the current dental implant surfaces that use nanotopography in clinical dentistry have been discussed.
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Affiliation(s)
- Rahimeh Rasouli
- Department of Medical Nanotechnology, International Campus, Tehran University of Medical Sciences, Tehran, Iran.
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Khoshnevisan K, Maleki H, Samadian H, Shahsavari S, Sarrafzadeh MH, Larijani B, Dorkoosh FA, Haghpanah V, Khorramizadeh MR. Cellulose acetate electrospun nanofibers for drug delivery systems: Applications and recent advances. Carbohydr Polym 2018; 198:131-141. [DOI: 10.1016/j.carbpol.2018.06.072] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/16/2018] [Accepted: 06/14/2018] [Indexed: 01/31/2023]
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Abstract
Efforts in developing an effective vaccine for human immunodeficiency virus (HIV) has been challenging as HIV strains are highly variable and exhibit extraordinary mutability. Despite condom usage and pre-exposure prophylaxis as excellent prevention strategies, lack of accessibility in some developing countries and low adherence due to sociocultural factors continue to act as barriers in reducing the HIV epidemic. Microbicides are topical therapies developed to prevent HIV and other sexually transmitted infections during intercourse. Microbicides applied vaginally or rectally are intended to prevent HIV infection at the site of transmission by either inhibiting its entry into immune cells or prevent viral replication. This review will summarize some of the current state-of-the-art microbicide formulations that are in preclinical and clinical stages of development and discuss some of the challenges associated with microbicide development.
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Affiliation(s)
- Yannick L Traore
- Laboratory for Drug Delivery and Biomaterials, School of Pharmacy, University of Waterloo, Kitchener, Ontatio, Canada
| | - Yufei Chen
- Laboratory for Drug Delivery and Biomaterials, School of Pharmacy, University of Waterloo, Kitchener, Ontatio, Canada
| | - Emmanuel A Ho
- Laboratory for Drug Delivery and Biomaterials, School of Pharmacy, University of Waterloo, Kitchener, Ontatio, Canada
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Blakney AK, Jiang Y, Woodrow KA. Application of electrospun fibers for female reproductive health. Drug Deliv Transl Res 2018; 7:796-804. [PMID: 28497376 DOI: 10.1007/s13346-017-0386-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Here, we present the current challenges in women's reproductive health and the current state-of-the-art treatment and prevention options for STI prevention, contraception, and treatment of infections. We discuss how the versatile platform of electrospun fibers can be applied to each challenge, and postulate at how these technologies could be improved. The void of approved electrospun fiber-based products yields the potential to apply this useful technology to a number of medical applications, many of which are relevant to women's reproductive health. Given the ability to tune drug delivery characteristics and three-dimensional geometry, there are many opportunities to pursue new product designs and routes of administration for electrospun fibers. For each application, we provide an overview of the versatility of electrospun fibers as a novel dosage form and summarize their advantages in clinical applications. We also provide a perspective on why electrospun fibers are well-suited for a variety of applications within women's reproductive health and identify areas that could greatly benefit from innovations with electrospun fiber-based approaches.
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Affiliation(s)
- Anna K Blakney
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Yonghou Jiang
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Kim A Woodrow
- Department of Bioengineering, University of Washington, Seattle, WA, USA.
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Abstract
Sexual intercourse (vaginal and anal) is the predominant mode of human immunodeficiency virus (HIV) transmission. Topical microbicides used in an on-demand format (i.e., immediately before or after sex) can be part of an effective tool kit utilized to prevent sexual transmission of HIV. The effectiveness of prevention products is positively correlated with adherence, which is likely to depend on user acceptability of the product. The development of an efficacious and acceptable product is therefore paramount for the success of an on-demand product. Acceptability of on-demand products (e.g., gels, films, and tablets) and their attributes is influenced by a multitude of user-specific factors that span behavioral, lifestyle, socio-economic, and cultural aspects. In addition, physicochemical properties of the drug, anatomical and physiological aspects of anorectal and vaginal compartments, issues relating to large-scale production, and cost can impact product development. These factors together with user preferences determine the design space of an effective, acceptable, and feasible on-demand product. In this review, we summarize the interacting factors that together determine product choice and its target product profile.
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Affiliation(s)
- Sravan Kumar Patel
- School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15213, USA.,Magee-Womens Research Institute, Pittsburgh, PA, 15213, USA
| | - Lisa Cencia Rohan
- School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15213, USA. .,Magee-Womens Research Institute, Pittsburgh, PA, 15213, USA.
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Tyo KM, Duan J, Kollipara P, Dela Cerna MVC, Lee D, Palmer KE, Steinbach-Rankins JM. pH-responsive delivery of Griffithsin from electrospun fibers. Eur J Pharm Biopharm 2018; 138:64-74. [PMID: 29698714 DOI: 10.1016/j.ejpb.2018.04.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/05/2018] [Accepted: 04/15/2018] [Indexed: 10/17/2022]
Abstract
Human immunodeficiency virus (HIV-1) affects over 36 million people globally. Current prevention strategies utilize antiretrovirals that have demonstrated protection, but result in antiviral resistance, adverse toxicity, and require frequent administration. A novel biologic, griffithsin (GRFT), has demonstrated outstanding safety and efficacy against laboratory and primary HIV isolates and against intravaginal murine herpes simplex virus 2 (HSV-2) challenge, making it a promising microbicide candidate. However, transient activity and instability remain concerns surrounding biologic delivery, particularly in the harsh environment of the female reproductive tract (FRT). Recently, electrospun fibers (EFs) have demonstrated promise for intravaginal delivery, with the potential to conserve active agent until release is needed. The goal of this study was to fabricate and characterize pH-responsive fibers comprised of poly(lactic-co-glycolic acid) (PLGA) or methoxypolyethylene glycol-b-PLGA (mPEG-PLGA) with varying ratios of poly(n-butyl acrylate-co-acrylic acid) (PBA-co-PAA), to selectively release GRFT under pH-conditions that mimic semen introduction. Fibers comprised of mPEG-PLGA:PBA-co-PAA (90:10 w/w) demonstrated high GRFT loading that was maintained within simulated vaginal fluid (SVF), and pH-dependent release upon exposure to buffered and SVF:simulated semen solutions. Moreover, GRFT fibers demonstrated potent in vitro efficacy against HIV-1 and safety in vaginal epithelial cells, suggesting their future potential for efficacious biologic delivery to the FRT.
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Affiliation(s)
- Kevin M Tyo
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Jinghua Duan
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Pravallika Kollipara
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States
| | - Mark Vincent C Dela Cerna
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Louisville, Louisville, KY, United States
| | - Donghan Lee
- Department of Medicine, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, United States
| | - Kenneth E Palmer
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Jill M Steinbach-Rankins
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States; Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Department of Microbiology and Immunology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States.
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Abstract
This article reviews stimuli-responsive and biostable polyurethanes (PUs) and discusses biomedical applications of smart PUs with a particular focus on long-term implantable PU biomaterials such as PU generated artificial blood vessels, artificial intervertebral discs (IVDs), and intravaginal rings (IVRs). Recently, smart PUs have been actively researched to enhance bioactivity, biocompatibility, and reduce drug side effects. Although biodegradability is important in regenerative medicine, biostability of PU plays a key role for long-term implantable biomaterials. This article reviews recent publications of research and inventions of stimuli-responsive and biostable PUs. Applications of smart PUs in long-term implantable biomaterials are discussed and linked to the future outlook of smart biostable PU biomaterials.
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Affiliation(s)
- Seungil Kim
- Biomedical Engineering, Faculty of Engineering, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Song Liu
- Biomedical Engineering, Faculty of Engineering, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.,Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.,Department of Medical Microbiology, Rady Faculty of Health Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
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Halwes ME, Tyo KM, Steinbach-Rankins JM, Frieboes HB. Computational Modeling of Antiviral Drug Diffusion from Poly(lactic- co-glycolic-acid) Fibers and Multicompartment Pharmacokinetics for Application to the Female Reproductive Tract. Mol Pharm 2018; 15:1534-1547. [PMID: 29481088 DOI: 10.1021/acs.molpharmaceut.7b01089] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The need for more versatile technologies to deliver antiviral agents to the female reproductive tract (FRT) has spurred the development of on-demand and sustained-release platforms. Electrospun fibers (EFs), in particular, have recently been applied to FRT delivery, resulting in an alternative dosage form with the potential to provide protection and therapeutic effect against a variety of infection types. However, a multitude of fabrication parameters, as well as the resulting complexities of solvent-drug, drug-polymer, and solvent-polymer interactions, are known to significantly impact the loading and release of incorporated agents. Numerous processing parameters, in addition to their combined interactions, can hinder the iterative development of fiber formulations to achieve optimal release for particular durations, doses, and polymer-drug types. The experimental effort to design and develop EFs could benefit from mathematical analysis and computational simulation that predictively evaluate combinations of parameters to meet product design needs. Here, existing modeling efforts are leveraged to develop a simulation platform that correlates and predicts the delivery of relevant small molecule antivirals from EFs that have been recently applied to target sexually transmitted infections (STIs). A pair of mathematical models is coupled to simulate the release of two structurally similar small molecule antiretroviral reverse transcriptase inhibitors, Tenofovir (TFV) and Tenofovir disoproxil fumarate (TDF), from poly(lactic- co-glycolic acid) (PLGA) EFs, and to evaluate how changes in the system parameters affect the distribution of encapsulated agent in a three-compartment model of the vaginal epithelium. The results indicate that factors such as fiber diameter, mesh thickness, antiviral diffusivity, and fiber geometry can be simulated to create an accurate model that distinguishes the different release patterns of TFV and TDF from EFs, and that enables detailed evaluation of the associated pharmacokinetics. This simulation platform offers a basis with which to further study EF parameters and their effect on antiviral release and pharmacokinetics in the FRT.
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Affiliation(s)
- Michael E Halwes
- Department of Bioengineering , University of Louisville , Louisville , Kentucky 40292 , United States
| | | | - Jill M Steinbach-Rankins
- Department of Bioengineering , University of Louisville , Louisville , Kentucky 40292 , United States
| | - Hermann B Frieboes
- Department of Bioengineering , University of Louisville , Louisville , Kentucky 40292 , United States
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Wu TJ, Chiu HY, Yu J, Cautela MP, Sarmento B, das Neves J, Catala C, Pazos-Perez N, Guerrini L, Alvarez-Puebla RA, Vranješ-Đurić S, Ignjatović NL. Nanotechnologies for early diagnosis, in situ disease monitoring, and prevention. NANOTECHNOLOGIES IN PREVENTIVE AND REGENERATIVE MEDICINE 2018. [PMCID: PMC7156018 DOI: 10.1016/b978-0-323-48063-5.00001-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nanotechnology is an enabling technology with great potential for applications in stem cell research and regenerative medicine. Fluorescent nanodiamond (FND), an inherently biocompatible and nontoxic nanoparticle, is well suited for such applications. We had developed a prospective isolation method using CD157, CD45, and CD54 to obtain lung stem cells. Labeling of CD45−CD54+CD157+ cells with FNDs did not eliminate their abilities for self-renewal and differentiation. The FND labeling in combination with cell sorting, fluorescence lifetime imaging microscopy, and immunostaining identified transplanted stem cells allowed tracking of their engraftment and regenerative capabilities with single-cell resolution. Time-gated fluorescence (TGF) imaging in mouse tissue sections indicated that they reside preferentially at the bronchoalveolar junctions of lungs, especially in naphthalene-injured mice. Our results presented in Subchapter 1.1 demonstrate not only the remarkable homing capacity and regenerative potential of the isolated stem cells, but also the ability of finding rare lung stem cells in vivo using FNDs. The topical use of antiretroviral-based microbicides, namely of a dapivirine ring, has been recently shown to partially prevent transmission of HIV through the vaginal route. Among different formulation approaches, nanotechnology tools and principles have been used for the development of tentative vaginal and rectal microbicide products. Subchapter 1.2 provides an overview of antiretroviral drug nanocarriers as novel microbicide candidates and discusses recent and relevant research on the topic. Furthermore, advances in developing vaginal delivery platforms for the administration of promising antiretroviral drug nanocarriers are reviewed. Although mostly dedicated to the discussion of nanosystems for vaginal use, the development of rectal nanomicrobicides is also addressed. Infectious diseases are currently responsible for over 8 million deaths per year. Efficient treatments require accurate recognition of pathogens at low concentrations, which in the case of blood infection (septicemia) can go as low as 1 mL–1. Detecting and quantifying bacteria at such low concentrations is challenging and typically demands cultures of large samples of blood (∼1 mL) extending over 24–72 h. This delay seriously compromises the health of patients and is largely responsible for the death toll of bacterial infections. Recent advances in nanoscience, spectroscopy, plasmonics, and microfluidics allow for the development of optical devices capable of monitoring minute amounts of analytes in liquid samples. In Subchapter 1.3 we critically discuss these recent developments that will, in the future, enable the multiplex identification and quantification of microorganisms directly on their biological matrix with unprecedented speed, low cost, and sensitivity. Radiolabeled nanoparticles (NPs) are finding an increasing interest in a broad range of biomedical applications. They may be used to detect and characterize diseases, to deliver relevant therapeutics, and to study the pharmacokinetic/pharmacodynamic parameters of nanomaterials. The use of radiotracer techniques in the research of novel NPs offers many advantages, but there are still some limitations. The binding of radionuclides to NPs has to be irreversible to prevent their escape to other tissues or organs. Due to the short half-lives of radionuclides, the manufacturing process is time limited and difficult, and there is also a risk of contamination. Subchapter 1.4 presents the main selection criteria for radionuclides and applicable radiolabeling procedures used for the radiolabeling of various NPs. Also, an overview of different types of NPs that have so far been labeled with radionuclides is presented.
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Affiliation(s)
- Tsai-Jung Wu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital, Kuei Shang, Taiwan
| | - Hsiao-Yu Chiu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital, Kuei Shang, Taiwan,China Medical University, Taichung, Taiwan
| | - John Yu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital, Kuei Shang, Taiwan,Institute of Cellular and Organismic Biology, Taipei, Taiwan
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Salama A, Mohamed A, Aboamera NM, Osman T, Khattab A. Characterization and mechanical properties of cellulose acetate/carbon nanotube composite nanofibers. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21919] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ahmed Salama
- Production Engineering and Printing Technology Department; Akhbar El Yom Academy; Giza Egypt
| | - Alaa Mohamed
- Production Engineering and Printing Technology Department; Akhbar El Yom Academy; Giza Egypt
- Egypt Nanotechnology Center; EGNC; Cairo University; Giza Egypt
| | - Nada M. Aboamera
- Production Engineering and Printing Technology Department; Akhbar El Yom Academy; Giza Egypt
| | - Tarek Osman
- Mechanical Design and Production Engineering Department; Cairo University; Giza Egypt
| | - Aly Khattab
- Mechanical Design and Production Engineering Department; Cairo University; Giza Egypt
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45
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Vuong HR, Tyo KM, Steinbach-Rankins JM. Fabrication and Characterization of Griffithsin-modified Fiber Scaffolds for Prevention of Sexually Transmitted Infections. J Vis Exp 2017. [PMID: 29155732 DOI: 10.3791/56492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Electrospun fibers (EFs) have been widely used in a variety of therapeutic applications; however, they have only recently been applied as a technology to prevent and treat sexually transmitted infections (STIs). Moreover, many EF technologies focus on encapsulating the active agent, relative to utilizing the surface to impart biofunctionality. Here we describe a method to fabricate and surface-modify poly(lactic-co-glycolic) acid (PLGA) electrospun fibers, with the potent antiviral lectin Griffithsin (GRFT). PLGA is an FDA-approved polymer that has been widely used in drug delivery due to its outstanding chemical and biocompatible properties. GRFT is a natural, potent, and safe lectin that possesses broad activity against numerous viruses including human immunodeficiency virus type 1 (HIV-1). When combined, GRFT-modified fibers have demonstrated potent inactivation of HIV-1 in vitro. This manuscript describes the methods to fabricate and characterize GRFT-modified EFs. First, PLGA is electrospun to create a fiber scaffold. Fibers are subsequently surface-modified with GRFT using 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) and N-hydroxysuccinimide (NHS)chemistry. Scanning electron microscopy (SEM) was used to assess the size and morphology of surface-modified formulations. Additionally, a gp120 or hemagglutinin (HA)-based ELISA may be used to quantify the amount of GRFT conjugated to, as well as GRFT desorption from the fiber surface. This protocol can be more widely applied to fabricate fibers that are surface-modified with a variety of different proteins.
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Affiliation(s)
- Hung R Vuong
- Department of Chemistry, University of Louisville
| | - Kevin M Tyo
- Department of Pharmacology and Toxicology, University of Louisville; Center for Predictive Medicine, University of Louisville
| | - Jill M Steinbach-Rankins
- Department of Pharmacology and Toxicology, University of Louisville; Center for Predictive Medicine, University of Louisville; Department of Microbiology and Immunology, University of Louisville; Department of Bioengineering, University of Louisville;
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Papa A, Guarino V, Cirillo V, Oliviero O, Ambrosio L. Optimization of Bicomponent Electrospun Fibers for Therapeutic Use: Post-Treatments to Improve Chemical and Biological Stability. J Funct Biomater 2017; 8:jfb8040047. [PMID: 29035303 PMCID: PMC5748554 DOI: 10.3390/jfb8040047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/10/2017] [Accepted: 10/10/2017] [Indexed: 11/16/2022] Open
Abstract
Bicomponent electrospun nanofibers based on the combination of synthetic (i.e., aliphatic polyesters such as polycaprolactone (PCL)) and natural proteins (i.e., gelatin) have been extensively investigated as temporary platforms to instruct cells by the release of molecular/pharmaceutical signals for the regeneration of several tissues. Here, water soluble proteins (i.e., gelatin), strictly embedded to PCL, act as carriers of bioactive molecules, thus improving bioavailability and supporting cell activities during in vitro regeneration. However, these proteins are rapidly digested by enzymes, locally produced by many different cell types, both in vitro and in vivo, with significant drawbacks in the control of molecular release. Hence, we have investigated three post-processing strategies based on the use of different crosslinking agents-(1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride) (EDC), glyceraldehyde (GC), and 1,4-butanediol diglycidyl ether (BDDGE)-to delay the dissolution time of gelatin macromolecules from bicomponent fibers. All of the qualitative (i.e., SEM, TGA) and quantitative (i.e., Trinitrobenzene sulfonate (TNBS) and bicinchoninic acid (BCA) assays) morphological/chemical analyses as well as biocompatibility assays indicate that EDC crosslinking improves the chemical stability of bicomponent fibers at 37 °C and provides a more efficient encapsulation and controlled sustained release of drug, thus resulting in the best post-treatment to design bio-inspired fibrous platforms for the extended in vitro release of drugs.
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Affiliation(s)
- Antonio Papa
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
- IMAST Scarl, P.za Bovio 22, 80133 Naples, Italy.
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Valentina Cirillo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Olimpia Oliviero
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
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Mandal S, Khandalavala K, Pham R, Bruck P, Varghese M, Kochvar A, Monaco A, Prathipati PK, Destache C, Shibata A. Cellulose Acetate Phthalate and Antiretroviral Nanoparticle Fabrications for HIV Pre-Exposure Prophylaxis. Polymers (Basel) 2017; 9. [PMID: 30450244 PMCID: PMC6239201 DOI: 10.3390/polym9090423] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
To adequately reduce new HIV infections, development of highly effective pre-exposure prophylaxis (PrEP) against HIV infection in women is necessary. Cellulose acetate phthalate (CAP) is a pH sensitive polymer with HIV-1 entry inhibitory properties. Dolutegravir (DTG) is an integrase strand transfer inhibitor with potent antiretroviral activity. DTG delivered in combination with CAP may significantly improve current PrEP against HIV. In the present study, the development of DTG-loaded CAP nanoparticles incorporated in thermosensitive (TMS) gel at vaginal pH 4.2 and seminal fluid pH 7.4 is presented as proof-of-concept for improved PrEP. Water–oil–in–water homogenization was used to fabricate DTG-loaded CAP nanoparticles (DTG–CAP–NPs). Size, polydispersity, and morphological analyses illustrate that DTG–CAP–NPs were smooth and spherical, ≤200 nm in size, and monodispersed with a polydispersity index PDI ≤ 0.2. The drug encapsulation (EE%) and release profile of DTG–CAP–NPs was determined by HPLC analysis. The EE% of DTG in DTG–CAP–NPs was evaluated to be ~70%. The thermal sensitivity of the TMS gel was optimized and the pH dependency was evaluated by rheological analysis. DTG release studies in TMS gel revealed that DTG–CAP–NPs were stable in TMS gel at pH 4.2 while DTG–CAP–NPs in TMS gel at pH 7.4 rapidly release DTG (≥80% release within 1 h). Cytotoxicity studies using vaginal cell lines revealed that DTG–CAP–NPs were relatively non-cytotoxic at concentration <1 µg/mL. Confocal microscopic studies illustrate that ≥98% cells retained DTG–CAP–NPs intracellularly over seven days. Antiretroviral drug loaded nanocellulose fabrications in TMS gel delivered intravaginally may enhance both microbicidal and antiretroviral drug efficacy and may present a novel option for female PrEP against HIV.
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Affiliation(s)
- Subhra Mandal
- School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (S.M.); (P.K.P.); (C.D.)
| | - Karl Khandalavala
- Department of Biology, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (K.K.); (R.P.); (M.V.); (A.K.); (A.M.)
| | - Rachel Pham
- Department of Biology, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (K.K.); (R.P.); (M.V.); (A.K.); (A.M.)
| | - Patrick Bruck
- Dana-Farber Cancer Institute, Harvard University, Boston, MA 02215, USA;
| | - Marisa Varghese
- Department of Biology, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (K.K.); (R.P.); (M.V.); (A.K.); (A.M.)
| | - Andrew Kochvar
- Department of Biology, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (K.K.); (R.P.); (M.V.); (A.K.); (A.M.)
| | - Ashley Monaco
- Department of Biology, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (K.K.); (R.P.); (M.V.); (A.K.); (A.M.)
| | - Pavan Kumar Prathipati
- School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (S.M.); (P.K.P.); (C.D.)
| | - Christopher Destache
- School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (S.M.); (P.K.P.); (C.D.)
| | - Annemarie Shibata
- Department of Biology, Creighton University, 2500 California Plaza, Omaha, NE 68178, USA; (K.K.); (R.P.); (M.V.); (A.K.); (A.M.)
- Correspondence: ; Tel.: +1-402-280-3588
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Tyo KM, Vuong HR, Malik DA, Sims LB, Alatassi H, Duan J, Watson WH, Steinbach-Rankins JM. Multipurpose tenofovir disoproxil fumarate electrospun fibers for the prevention of HIV-1 and HSV-2 infections in vitro. Int J Pharm 2017; 531:118-133. [PMID: 28797967 DOI: 10.1016/j.ijpharm.2017.08.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/27/2017] [Accepted: 08/02/2017] [Indexed: 12/31/2022]
Abstract
Sexually transmitted infections affect hundreds of millions of people worldwide. Both human immunodeficiency virus (HIV-1 and -2) and herpes simplex virus-2 (HSV-2) remain incurable, urging the development of new prevention strategies. While current prophylactic technologies are dependent on strict user adherence to achieve efficacy, there is a dearth of delivery vehicles that provide discreet and convenient administration, combined with prolonged-delivery of active agents. To address these needs, we created electrospun fibers (EFs) comprised of FDA-approved polymers, poly(lactic-co-glycolic acid) (PLGA) and poly(DL-lactide-co-ε-caprolactone) (PLCL), to provide sustained-release and in vitro protection against HIV-1 and HSV-2. PLGA and PLCL EFs, incorporating the antiretroviral, tenofovir disoproxil fumarate (TDF), exhibited sustained-release for up to 4 weeks, and provided complete in vitro protection against HSV-2 and HIV-1 for 24h and 1 wk, respectively, based on the doses tested. In vitro cell culture and EpiVaginal tissue tests confirmed the safety of fibers in vaginal and cervical cells, highlighting the potential of PLGA and PLCL EFs as multipurpose next-generation drug delivery vehicles.
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Affiliation(s)
- Kevin M Tyo
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Hung R Vuong
- Department of Biochemistry, School of Medicine, University of Louisville, KY, United States
| | - Danial A Malik
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States
| | - Lee B Sims
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States
| | - Houda Alatassi
- Department of Pathology, University of Louisville, Louisville, KY, United States
| | - Jinghua Duan
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Walter H Watson
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, School of Medicine, University of Louisville, KY, United States
| | - Jill M Steinbach-Rankins
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States; Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Department of Microbiology and Immunology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States.
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Lembo D, Donalisio M, Civra A, Argenziano M, Cavalli R. Nanomedicine formulations for the delivery of antiviral drugs: a promising solution for the treatment of viral infections. Expert Opin Drug Deliv 2017; 15:93-114. [DOI: 10.1080/17425247.2017.1360863] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- David Lembo
- Department of Clinical and Biological Sciences, University of Torino, S. Luigi Gonzaga Hospital, Torino, Italy
| | - Manuela Donalisio
- Department of Clinical and Biological Sciences, University of Torino, S. Luigi Gonzaga Hospital, Torino, Italy
| | - Andrea Civra
- Department of Clinical and Biological Sciences, University of Torino, S. Luigi Gonzaga Hospital, Torino, Italy
| | - Monica Argenziano
- Department of Drug Science and Technology, University of Torino, Turin, Italy
| | - Roberta Cavalli
- Department of Drug Science and Technology, University of Torino, Turin, Italy
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Fabrication of Sustained-release CA-PU Coaxial Electrospun Fiber Membranes for Plant Grafting Application. Carbohydr Polym 2017; 169:198-205. [DOI: 10.1016/j.carbpol.2017.04.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/05/2017] [Accepted: 04/10/2017] [Indexed: 11/18/2022]
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