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Miar S, Gonzales G, Dion G, Ong JL, Malka R, Bizios R, Branski RC, Guda T. Electrospun composite-coated endotracheal tubes with controlled siRNA and drug delivery to lubricate and minimize upper airway injury. Biomaterials 2024; 309:122602. [PMID: 38768544 DOI: 10.1016/j.biomaterials.2024.122602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/25/2024] [Accepted: 05/02/2024] [Indexed: 05/22/2024]
Abstract
Endotracheal Tubes (ETTs) maintain and secure a patent airway; however, prolonged intubation often results in unintended injury to the mucosal epithelium and inflammatory sequelae which complicate recovery. ETT design and materials used have yet to adapt to address intubation associated complications. In this study, a composite coating of electrospun polycaprolactone (PCL) fibers embedded in a four-arm polyethylene glycol acrylate matrix (4APEGA) is developed to transform the ETT from a mechanical device to a dual-purpose device capable of delivering multiple therapeutics while preserving coating integrity. Further, the composite coating system (PCL-4APEGA) is capable of sustained delivery of dexamethasone from the PCL phase and small interfering RNA (siRNA) containing polyplexes from the 4APEGA phase. The siRNA is released rapidly and targets smad3 for immediate reduction in pro-fibrotic transforming growth factor-beta 1 (TGFϐ1) signaling in the upper airway mucosa as well as suppressing long-term sequelae in inflammation from prolonged intubation. A bioreactor was used to study mucosal adhesion to the composite PCL-4APEGA coated ETTs and investigate continued mucus secretory function in ex vivo epithelial samples. The addition of the 4APEGA coating and siRNA delivery to the dexamethasone delivery was then evaluated in a swine model of intubation injury and observed to restore mechanical function of the vocal folds and maintain epithelial thickness when observed over 14 days of intubation. This study demonstrated that increase in surface lubrication paired with surface stiffness reduction significantly decreased fibrotic behavior while reducing epithelial adhesion and abrasion.
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Affiliation(s)
- Solaleh Miar
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, USA; Department of Civil, Environmental, and Biomedical Engineering, University of Hartford, West Hartford, CT, USA.
| | - Gabriela Gonzales
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, USA.
| | - Gregory Dion
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Joo L Ong
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, USA.
| | - Ronit Malka
- Department of Otolaryngology - Head and Neck Surgery, Brooke Army Medical Center, JBSA, Fort Sam Houston, TX, 78234, USA.
| | - Rena Bizios
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, USA.
| | - Ryan C Branski
- Departments of Rehabilitation Medicine and Otolaryngology-Head and Neck Surgery, NYU Grossman School of Medicine, New York, NY, USA.
| | - Teja Guda
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, USA; Department of Cell Systems and Anatomy, University of Texas Health San Antonio, San Antonio, TX, USA.
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Cruz DRD, Zheng A, Debele T, Larson P, Dion GR, Park YC. Drug delivery systems for wound healing treatment of upper airway injury. Expert Opin Drug Deliv 2024; 21:573-591. [PMID: 38588553 DOI: 10.1080/17425247.2024.2340653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 04/04/2024] [Indexed: 04/10/2024]
Abstract
INTRODUCTION Endotracheal intubation is a common procedure to maintain an open airway with risks for traumatic injury. Pathological changes resulting from intubation can cause upper airway complications, including vocal fold scarring, laryngotracheal stenosis, and granulomas and present with symptoms such as dysphonia, dysphagia, and dyspnea. Current intubation-related laryngotracheal injury treatment approaches lack standardized guidelines, relying on individual clinician experience, and surgical and medical interventions have limitations and carry risks. AREAS COVERED The clinical and preclinical therapeutics for wound healing in the upper airway are described. This review discusses the current developments on local drug delivery systems in the upper airway utilizing particle-based delivery systems, including nanoparticles and microparticles, and bulk-based delivery systems, encompassing hydrogels and polymer-based approaches. EXPERT OPINION Complex laryngotracheal diseases pose challenges for effective treatment, struggling due to the intricate anatomy, limited access, and recurrence. Symptomatic management often requires invasive surgical procedures or medications that are unable to achieve lasting effects. Recent advances in nanotechnology and biocompatible materials provide potential solutions, enabling precise drug delivery, personalization, and extended treatment efficacy. Combining these technologies could lead to groundbreaking treatments for upper airways diseases, significantly improving patients' quality of life. Research and innovation in this field are crucial for further advancements.
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Affiliation(s)
- Denzel Ryan D Cruz
- Medical Scientist Training Program, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
- Biomedical Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
| | - Avery Zheng
- Chemical Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
| | - Tilahun Debele
- Chemical Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
| | - Peter Larson
- Department of Otolaryngology - Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Gregory R Dion
- Biomedical Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
- Department of Otolaryngology - Head and Neck Surgery, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Yoonjee C Park
- Biomedical Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
- Chemical Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
- Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
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3
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Dawud H, Edelstein-Pardo N, Mulamukkil K, Amir RJ, Abu Ammar A. Hydrogel Microneedles with Programmed Mesophase Transitions for Controlled Drug Delivery. ACS APPLIED BIO MATERIALS 2024; 7:1682-1693. [PMID: 38335540 PMCID: PMC10951948 DOI: 10.1021/acsabm.3c01133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/11/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024]
Abstract
Microneedle-based drug delivery offers an attractive and minimally invasive administration route to deliver therapeutic agents through the skin by bypassing the stratum corneum, the main skin barrier. Recently, hydrogel-based microneedles have gained prominence for their exceptional ability to precisely control the release of their drug cargo. In this study, we investigated the feasibility of fabricating microneedles from triblock amphiphiles with linear poly(ethylene glycol) (PEG) as the hydrophilic middle block and two dendritic side-blocks with enzyme-cleavable hydrophobic end-groups. Due to the poor formation and brittleness of microneedles made from the neat amphiphile, we added a sodium alginate base layer and tested different polymeric excipients to enhance the mechanical strength of the microneedles. Following optimization, microneedles based on triblock amphiphiles were successfully fabricated and exhibited favorable insertion efficiency and low height reduction percentage when tested in Parafilm as a skin-simulant model. When tested against static forces ranging from 50 to 1000 g (4.9-98 mN/needle), the microneedles showed adequate mechanical strength with no fractures or broken segments. In buffer solution, the solid microneedles swelled into a hydrogel within about 30 s, followed by their rapid disintegration into small hydrogel particles. These hydrogel particles could undergo slow enzymatic degradation to soluble polymers. In vitro release study of dexamethasone (DEX), as a steroid model drug, showed first-order drug release, with 90% released within 6 days. Eventually, DEX-loaded MNs were subjected to an insertion test using chicken skin and showed full penetration. This study demonstrates the feasibility of programming hydrogel-forming microneedles to undergo several mesophase transitions and their potential application as a delivery system for self-administration, increased patient compliance, improved efficacy, and sustained drug release.
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Affiliation(s)
- Hala Dawud
- Department
of Pharmaceutical Engineering, Azrieli College
of Engineering Jerusalem, Jerusalem 9103501, Israel
| | - Nicole Edelstein-Pardo
- School
of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Nanoscience and Nanotechnology, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Keerthana Mulamukkil
- School
of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Nanoscience and Nanotechnology, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Roey J. Amir
- School
of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Nanoscience and Nanotechnology, Tel-Aviv University, Tel-Aviv 6997801, Israel
- ADAMA
Center for Novel Delivery Systems in Crop Protection, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Aiman Abu Ammar
- Department
of Pharmaceutical Engineering, Azrieli College
of Engineering Jerusalem, Jerusalem 9103501, Israel
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Gonzales G, Malka R, Marinelli L, Lee CM, Miar S, Cook S, Dion GR, Guda T. Endotracheal tubes with dexamethasone eluting electrospun coating improve tissue mechanical function after upper airway injury. Sci Rep 2024; 14:2821. [PMID: 38308093 PMCID: PMC10837152 DOI: 10.1038/s41598-024-53328-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 01/31/2024] [Indexed: 02/04/2024] Open
Abstract
Corticosteroid-eluting endotracheal tubes (ETTs) were developed and employed in a swine laryngotracheal injury model to maintain airway patency and provide localized drug delivery to inhibit fibrotic scarring. Polycaprolactone (PCL) fibers with or without dexamethasone were electrospun onto the ETT surface PCL-only coated ETTs and placed in native airways of 18 Yorkshire swine. Regular and dexamethasone-PCL coated ETTs were placed in airways of another 18 swine injured by inner laryngeal mucosal abrasion. All groups were evaluated after 3, 7 and 14 days (n = 3/treatment/time). Larynges were bisected and localized stiffness determined by normal indentation, then sequentially matched with histological assessment. In the native airway, tissue stiffness with PCL-only ETT placement increased significantly from 3 to 7 days (p = 0.0016) and 3 to 14 days (p < 0.0001) while dexamethasone-PCL ETT placement resulted in stiffness decreasing from 7 to 14 days (p = 0.031). In the injured airway, localized stiffness at 14 days was significantly greater after regular ETT placement (23.1 ± 0.725 N/m) versus dexamethasone-PCL ETTs (17.10 ± 0.930 N/m, p < 0.0001). Dexamethasone-loaded ETTs were found to reduce laryngotracheal tissue stiffening after simulated intubation injury compared to regular ETTs, supported by a trend of reduced collagen in the basement membrane in injured swine over time. Findings suggest localized corticosteroid delivery allows for tissue stiffness control and potential use as an approach for prevention and treatment of scarring caused by intubation injury.
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Affiliation(s)
- Gabriela Gonzales
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX, 78249, USA
| | - Ronit Malka
- Department of Otolaryngology - Head and Neck Surgery, Brooke Army Medical Center, JBSA, Fort Sam Houston, TX, 78234, USA
| | - Lisa Marinelli
- Department of Pathology and Area Laboratory Services, Brooke Army Medical Center, JBSA, Fort Sam Houston, TX, 78234, USA
| | - Christine M Lee
- Department of Pathology and Area Laboratory Services, Brooke Army Medical Center, JBSA, Fort Sam Houston, TX, 78234, USA
| | - Solaleh Miar
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX, 78249, USA
- Department of Civil, Environmental, and Biomedical Engineering, University of Hartford, West Hartford, CT, 06117, USA
| | - Stacy Cook
- Department of Otolaryngology - Head and Neck Surgery, Brooke Army Medical Center, JBSA, Fort Sam Houston, TX, 78234, USA
| | - Gregory R Dion
- Department of Otolaryngology - Head and Neck Surgery, University of Cincinnati College of Medicine, University of Cincinnati Medical Center, 231 Albert Sabin Way, Cincinnati, OH, 45267, USA.
| | - Teja Guda
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX, 78249, USA.
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Bakshi S, Pandey P, Mohammed Y, Wang J, Sailor MJ, Popat A, Parekh HS, Kumeria T. Porous silicon embedded in a thermoresponsive hydrogel for intranasal delivery of lipophilic drugs to treat rhinosinusitis. J Control Release 2023; 363:452-463. [PMID: 37769816 DOI: 10.1016/j.jconrel.2023.09.045] [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: 05/11/2023] [Revised: 09/09/2023] [Accepted: 09/25/2023] [Indexed: 10/03/2023]
Abstract
Intranasal delivery is the most preferred route of drug administration for treatment of a range of nasal conditions including chronic rhinosinusitis (CRS), caused by an infection and inflammation of the nasal mucosa. However, localised delivery of lipophilic drugs for persistent nasal inflammation is a challenge especially with traditional topical nasal sprays. In this study, a composite thermoresponsive hydrogel is developed and tuned to obtain desired rheological and physiochemical properties suitable for intranasal administration of lipophilic drugs. The composite is comprised of drug-loaded porous silicon (pSi) particles embedded in a poloxamer 407 (P407) hydrogel matrix. Mometasone Furoate (MF), a lipophilic corticosteroid (log P of 4.11), is used as the drug, which is loaded onto pSi particles at a loading capacity of 28 wt%. The MF-loaded pSi particles (MF@pSi) are incorporated into the P407-based thermoresponsive hydrogel (HG) matrix to form the composite hydrogel (MF@pSi-HG) with a final drug content ranging between 0.1 wt% to 0.5 wt%. Rheomechanical studies indicate that the MF@pSi component exerts a minimal impact on gelation temperature or strength of the hydrogel host. The in-vitro release of the MF payload from MF@pSi-HG shows a pronounced increase in the amount of drug released over 8 h (4.5 to 21-fold) in comparison to controls consisting of pure MF incorporated in hydrogel (MF@HG), indicating an improvement in kinetic solubility of MF upon loading into pSi. Ex-vivo toxicity studies conducted on human nasal mucosal tissue show no adverse effect from exposure to either pure HG or the MF@pSi-HG formulation, even at the highest drug content of 0.5 wt%. Experiments on human nasal mucosal tissue show the MF@pSi-HG formulation deposits a quantity of MF into the tissues within 8 h that is >19 times greater than the MF@HG control (194 ± 7 μg of MF/g of tissue vs. <10 μg of MF/g of tissue, respectively).
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Affiliation(s)
- Shrishty Bakshi
- School of Pharmacy, The University of Queensland, Queensland 4102, Australia
| | - Preeti Pandey
- School of Pharmacy, The University of Queensland, Queensland 4102, Australia
| | - Yousuf Mohammed
- Therapeutics Research Group, Diamantina Institute, University of Queensland, Brisbane, Queensland 4102, Australia
| | - Joanna Wang
- Department of Radiology, School of Medicine, Stanford University, Stanford, CA 94305, United States of America
| | - Michael J Sailor
- Department of Chemistry and Biochemistry, University of California-San Diego, La Jolla, CA 92093, United States of America
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, Queensland 4102, Australia.
| | - Harendra S Parekh
- School of Pharmacy, The University of Queensland, Queensland 4102, Australia.
| | - Tushar Kumeria
- School of Pharmacy, The University of Queensland, Queensland 4102, Australia; School of Materials Science and Engineering, The University of New South Wales, New South Wales 2052, Australia; Australian Centre for Nanomedicine, The University of New South Wales, New South Wales 2052, Australia.
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6
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Malka R, Gonzales G, Detar W, Marinelli L, Lee CM, Isaac A, Miar S, Cook S, Guda T, Dion GR. Effect of continuous local dexamethasone on tissue biomechanics and histology after inhalational burn in a preclinical model. Laryngoscope Investig Otolaryngol 2023; 8:939-945. [PMID: 37621281 PMCID: PMC10446272 DOI: 10.1002/lio2.1093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 05/26/2023] [Indexed: 08/26/2023] Open
Abstract
Objective Inhalational burns frequently lead to dysphonia and airway stenosis. We hypothesize local dexamethasone delivery via a novel drug-eluting electrospun polymer-mesh endotracheal tube (ETT) reduces biomechanical and histologic changes in the vocal folds in inhalational burn. Methods Dexamethasone-loaded polymer mesh was electrospun onto ETTs trimmed to transglottic endolaryngeal segments and secured in nine Yorkshire Crossbreed swine with directed 150°C inhalation burns. Uncoated ETTs were implanted in nine additional swine with identical burns. ETT segments were maintained for 3 and 7 days. Vocal fold (VF) structural stiffness was measured using automated-indentation mapping and compared across groups and to four uninjured controls, and matched histologic assessment performed. Statistical analysis was conducted using two-way ANOVA with Tukey's post hoc test and Wilcoxon rank-sum test. Results VF stiffness after burn decreased with longer intubation, from 19.4 (7.6) mN/mm at 3 days to 11.3 (5.2) mN/mm at 7 days (p < .0001). Stiffness similarly decreased with local dexamethasone, from 25.9 (17.2) mN/mm at 3 days to 18.1 (13.0) mN/mm at 7 days (p < .0001). VF stiffness in the dexamethasone group was increased compared to tissues without local dexamethasone (p = .0002), and all groups with ETT placement had higher tissue stiffness at 3 days (p < .001). No significant change in histologic evidence of epithelial ulceration or fibrosis was noted, while an increased degree of inflammation was noted in the dexamethasone group (p = .04). Conclusion Local dexamethasone delivery increases VF stiffness and degree of inflammation compared to uncoated ETTs in an acute laryngeal burn model, reflected in early biomechanical and histologic changes in an inhalational burn model.
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Affiliation(s)
- Ronit Malka
- Department of Biomedical Engineering and Chemical EngineeringUniversity of Texas at San AntonioSan AntonioTexasUSA
| | - Gabriela Gonzales
- Department of Otolaryngology—Head and Neck SurgeryBrooke Army Medical Center, JBSA Fort Sam HoustonHoustonTexasUSA
| | - Will Detar
- Department of Biomedical Engineering and Chemical EngineeringUniversity of Texas at San AntonioSan AntonioTexasUSA
| | - Lisa Marinelli
- Department of Pathology and Area Laboratory ServicesBrooke Army Medical Center, JBSA Fort Sam HoustonHoustonTexasUSA
| | - Christine M. Lee
- Department of Pathology and Area Laboratory ServicesBrooke Army Medical Center, JBSA Fort Sam HoustonHoustonTexasUSA
| | - Alisa Isaac
- Department of Otolaryngology—Head and Neck SurgeryBrooke Army Medical Center, JBSA Fort Sam HoustonHoustonTexasUSA
- Department of Cell Systems and AnatomyUniversity of Texas Health San AntonioSan AntonioTexasUSA
| | - Solaleh Miar
- Department of Otolaryngology—Head and Neck SurgeryBrooke Army Medical Center, JBSA Fort Sam HoustonHoustonTexasUSA
- Department of Civil, Environmental, and Biomedical EngineeringUniversity of HartfordWest HartfordConnecticutUSA
| | - Stacy Cook
- Department of Biomedical Engineering and Chemical EngineeringUniversity of Texas at San AntonioSan AntonioTexasUSA
| | - Teja Guda
- Department of Otolaryngology—Head and Neck SurgeryBrooke Army Medical Center, JBSA Fort Sam HoustonHoustonTexasUSA
- Department of Cell Systems and AnatomyUniversity of Texas Health San AntonioSan AntonioTexasUSA
| | - Gregory R. Dion
- Department of Otolaryngology—Head and Neck SurgeryUniversity of CincinnatiCincinnatiOhioUSA
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Amaya S, Murillo M, Gutiérrez Pérez ML, Cervera HS, Andrade MJ, Zuñiga MA, Barreto N, Daza MI, Carvajal LF, Alarcón CM, Aponte L, Olbrecht VA. The role of local inflammation in complications associated with intubation in pediatric patients: A narrative review. Paediatr Anaesth 2023; 33:427-434. [PMID: 36719267 DOI: 10.1111/pan.14643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 02/01/2023]
Abstract
Although the most important primary local inflammatory response factor to intubation is not yet clear, it is known that it may be directly attributed to the presence of trauma during intubation or the response of oral bacterial flora present in the trachea. It is known that prolonged intubation is associated with worse outcomes, but other underlying systemic issues, such as sepsis and trauma, are also associated with this result. Likewise, patients who require advanced airway management and excessive manipulation are more likely to experience complications. There are various inflammatory mediators that are generated during orotracheal intubation, many of which can be considered targets for therapies to help reduce inflammation caused by intubation. However, there is little evidence on the management of the inflammatory response induced by orotracheal intubation in pediatric patients. Therefore, the aim of this narrative review is to highlight the intubation associated complications that can arise from poorly controlled inflammation in intubated pediatric patients, review the proposed pathophysiology behind this, and discuss the current treatments that exist. Finally, taking into account the discussion on pathophysiology, we describe the current therapies being developed and future directions that can be taken in order to create more treatment options within this patient population.
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Affiliation(s)
- Sebastian Amaya
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Marcelino Murillo
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Martha L Gutiérrez Pérez
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
- Otorhinolaryngology Interest Group, Universidad El Bosque, Bogotá, Colombia
| | - Hector S Cervera
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
| | - María J Andrade
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
| | - María A Zuñiga
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
| | - Natalia Barreto
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
| | - María I Daza
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
| | - Luisa F Carvajal
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
| | - Catalina M Alarcón
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
| | - Laura Aponte
- Anesthesiology and Critical Care Interest Group, Universidad El Bosque, Bogotá, Colombia
- Colombian School of Medicine, Universidad El Bosque, Bogotá, Colombia
| | - Vanessa A Olbrecht
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, Ohio, USA
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Burruss CP, Kacker A. The current status of nanotechnological approaches to therapy and drug delivery in otolaryngology: A contemporary review. Laryngoscope Investig Otolaryngol 2022; 7:1762-1772. [PMID: 36544970 PMCID: PMC9764775 DOI: 10.1002/lio2.952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/06/2022] [Accepted: 10/09/2022] [Indexed: 12/24/2022] Open
Abstract
Objectives/Hypothesis To summarize the current standing of nanomedicine-based technology, particularly nanoparticles (NPs), for drug delivery and diagnostic mechanisms in otolaryngology and the otolaryngology subspecialties. Methods Literature searches were performed using PubMed and Ovid MEDLINE from 2010 to 2022. The search focused on original articles describing developments and applications of nanotechnology and drug delivery in otology, neurotology, cranial base surgery, head and neck oncology, laryngology, bronchoesophagology, and rhinology. Keyword searches and cross-referencing were also performed. No statistical analysis was performed. Results The PubMed search yielded 29 articles, and two Ovid MEDLINE searches both yielded 7 and 26 articles, respectively. Cross-referencing and keyword searches in PubMed and Google Scholar yielded numerous articles. The results indicate that currently, NPs are the most thoroughly studied nanotechnology for drug delivery and therapy in otolaryngology. Organic NPs have been utilized for drug delivery in otology and head and neck oncology due to their high biocompatibility. Inorganic NPs have similarly been utilized for drug delivery. However, inorganic NPs seem to be studied less extensively in these fields, likely due to an increased risk for heavy metal toxicity. Due to their magnetic properties, inorganic NPs have been utilized for magnetic-guided delivery in otology and thermoradiation and magnetic resonance imaging in head and neck oncology. Applications of nanotechnology to the fields of laryngology, bronchoesophagology, and rhinology have been studied less compared with otology and head and neck oncology. However, researchers have primarily employed NPs and other nanotechnologies such as nanofibers and nanoclusters for drug elution at mucosal surfaces to reduce airway and nasal inflammation. Conclusions Nanomedicine offers potential benefits in the treatment of patients in the field of otolaryngology due to enhanced control over drug release, cell-specific targeting, and the potential to reduce drug toxicity. Future work is needed to ensure the safety of these therapies to integrate this field of research into human therapies.
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Affiliation(s)
| | - Ashutosh Kacker
- Department of Otolaryngology–Head and Neck SurgeryWeill Cornell MedicineNew YorkNew YorkUSA
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Abu-Much A, Darawshi R, Dawud H, Kasem H, Abu Ammar A. Preparation and characterization of flexible furosemide-loaded biodegradable microneedles for intradermal drug delivery. Biomater Sci 2022; 10:6486-6499. [PMID: 36178014 DOI: 10.1039/d2bm01143c] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transdermal drug delivery systems are a useful and minimally invasive alternative to other drug administration routes. Biodegradable polymeric microneedles (MNs) are widely used in controlled-release drug delivery due to their tunable properties and ease of patient self-administration. Polylactic-co-glycolic acid (PLGA) is often used for sustained drug release owing to special intrinsic properties including biocompatibility and biodegradability, which offer excellent applicability in preparing MNs. Congestive heart failure (CHF) is characterized by fluid overload during acute exacerbation, necessitating frequent patient hospitalization for continuous intravenous (i.v.) diuretic therapy. In the present study, we incorporated furosemide (FUR) as a model drug into flexible PLGA MN skin patches for potential intradermal delivery to overcome the limitations associated with i.v. diuresis. The MNs were fabricated by a casting-mold technique and consisted of two main parts, PLGA needle tips loaded with varying concentrations of FUR and a flexible backing layer comprising sodium alginate and glycerol. MN formulations were characterized by SEM and exhibited a uniform pyramidal shape. The measured surface pH of all samples suggested that no skin irritation is expected upon application. High encapsulation efficiency was obtained for FUR-MN formulations in which a decrease was noted as the FUR/PLGA ratio decreased. Drug loading content ranged from 19.1 ± 1% to 28.9 ± 1.4%. Successful insertion of MNs into a Parafilm® skin simulant model suggested that MNs will easily penetrate the skin's outermost layer, the stratum corneum, and will permit intradermal delivery of FUR. The MNs were further characterized by analytical methods. Finally, the MNs exhibited an initial burst release followed by a sustained release of FUR. Self-administered FUR-MNs can open new avenues to overcome i.v. drip limitations and increase patient compliance.
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Affiliation(s)
- Arsalan Abu-Much
- Leviev Heart Center, Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel
| | - Raya Darawshi
- Department of Pharmaceutical Engineering, Azrieli College of Engineering Jerusalem, 26 Yaakov Shreibom Street, Ramat Beit Hakerem, Jerusalem 9103501, Israel.
| | - Hala Dawud
- Department of Pharmaceutical Engineering, Azrieli College of Engineering Jerusalem, 26 Yaakov Shreibom Street, Ramat Beit Hakerem, Jerusalem 9103501, Israel.
| | - Haytam Kasem
- Department of Mechanical Engineering, Azrieli College of Engineering Jerusalem, Jerusalem, Israel
| | - Aiman Abu Ammar
- Department of Pharmaceutical Engineering, Azrieli College of Engineering Jerusalem, 26 Yaakov Shreibom Street, Ramat Beit Hakerem, Jerusalem 9103501, Israel.
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10
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Abu Ammar A, Abdel-Haq M, Abd-Rbo K, Kasem H. Developing Novel Poly(Lactic-Co-Glycolic Acid) (PLGA) Films with Enhanced Adhesion Capacity by Biomimetic Mushroom-Shaped Microstructures. BIOTRIBOLOGY 2021; 27:100184. [DOI: 10.1016/j.biotri.2021.100184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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11
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Aronson MR, Ali Akbari Ghavimi S, Gehret PM, Jacobs IN, Gottardi R. Drug-Eluting Endotracheal Tubes for Preventing Bacterial Inflammation in Subglottic Stenosis. Laryngoscope 2021; 132:1356-1363. [PMID: 34319583 DOI: 10.1002/lary.29769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/10/2021] [Accepted: 07/13/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES/HYPOTHESIS Subglottic stenosis (SGS) results from dysregulated extracellular matrix deposition by laryngotracheal fibroblasts causing scar tissue formation following intubation. Recent work has highlighted a relationship between this inflammatory state and imbalances in the upper airway microbiome. Herein, we engineer novel drug-eluting endotracheal (ET) tubes to deliver a model antimicrobial peptide Lasioglossin-III (Lasio) for the local modulation of the microbiome during intubation. STUDY DESIGN Controlled in vitro study. METHODS ET tubes were coated with a water-in-oil (w/o) emulsion of Lasio in poly(d,l-lactide-co-glycolide) (PLGA) by dipping thrice. Peptide release was quantified over 2 weeks via fluorometric peptide assays. The antibacterial activity was tested against airway microbes (Staphylococcus epidermidis, Streptococcus pneumoniae, and pooled human microbiome samples) by placing Lasio/PLGA-coated tubes and appropriate controls in 48 well plates with diluted bacteria. Bacterial inhibition and tube adhesion were tested by measuring optical density and colony formation after tube culture, respectively. Biocompatibility was tested against laryngotracheal fibroblasts and lung epithelial cells. RESULTS We achieved a homogeneous coating of ET tubes with Lasio in a PLGA matrix that yields a prolonged, linear release over 1 week (typical timeframe before the ET tube is changed). We observed significant antibacterial activity against S. epidermidis, S. pneumoniae, and human microbiome samples, and prevention of bacterial adherence to the tube. Additionally, the released Lasio did not cause any cytotoxicity toward laryngotracheal fibroblasts or lung epithelial cells in vitro. CONCLUSION Overall, we demonstrate the design of an effective-eluting ET tube to modulate upper-airway bacterial infections during intubation which could be deployed to help prevent SGS. LEVEL OF EVIDENCE N/A Laryngoscope, 2021.
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Affiliation(s)
- Matthew R Aronson
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A.,Department of Surgery, Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, U.S.A
| | - Soheila Ali Akbari Ghavimi
- Department of Surgery, Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, U.S.A
| | - Paul M Gehret
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A.,Department of Surgery, Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, U.S.A
| | - Ian N Jacobs
- Department of Surgery, Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, U.S.A.,Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Riccardo Gottardi
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A.,Department of Surgery, Division of Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, U.S.A.,Department of Pediatrics, Division of Pulmonary Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, U.S.A.,Ri.MED Foundation, Palermo, Italy
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12
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Ali Akbari Ghavimi S, Gehret PM, Aronson MR, Schipani R, Smith KW, Borek RC, Germiller JA, Jacobs IN, Zur KB, Gottardi R. Drug delivery to the pediatric upper airway. Adv Drug Deliv Rev 2021; 174:168-189. [PMID: 33845038 DOI: 10.1016/j.addr.2021.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 03/22/2021] [Accepted: 04/06/2021] [Indexed: 11/25/2022]
Abstract
Pediatric upper airway disorders are frequently life-threatening and require precise assessment and intervention. Targeting these pathologies remains a challenge for clinicians due to the high complexity of pediatric upper airway anatomy and numerous potential etiologies; the most common treatments include systemic delivery of high dose steroids and antibiotics or complex and invasive surgeries. Furthermore, the majority of innovative airway management technologies are only designed and tested for adults, limiting their widespread implementation in the pediatric population. Here, we provide a comprehensive review of the most recent challenges of managing common pediatric upper airway disorders, describe the limitations of current clinical treatments, and elaborate on how to circumvent those limitations via local controlled drug delivery. Furthermore, we propose future advancements in the field of drug-eluting technologies to improve pediatric upper airway management outcomes.
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13
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Jahshan F, Abu Ammar A, Ertracht O, Eisenbach N, Daoud A, Sela E, Atar S, Zussman E, Fichtman B, Harel A, Gruber M. Local Delivery of Mometasone Furoate from an Eluting Endotracheal Tube Reduces Airway Morbidity Following Long-Term Animal Intubation. ACS APPLIED BIO MATERIALS 2021; 4:4131-4139. [PMID: 35006827 DOI: 10.1021/acsabm.0c01526] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND upper airway complications are common sequelae of endotracheal tube (ETT) intubation, and systemic corticosteroids are considered a mainstay treatment for this problem. Drug-eluting ETT may present an attractive option for topical steroid delivery while avoiding systemic side effects and improving the therapeutic outcome. The objective of the present study is to evaluate the reduction of tube-related tracheal morbidity via a self-designed steroid-eluting ETT with controlled sustained release properties in an animal model. METHODS steroid-eluting ETTs were coated by poly(lactic-co-glycolic acid) -electrospun nanofibers loaded with mometasone furoate (MF) as a model drug. Animals were randomly assigned into three equal groups: non-intubated, blank-ETT, and loaded-ETT. The intubation interval was 1 week. Specimens were analyzed by histology, specific fibrosis staining, and scanning electron microscopy (SEM). RESULTS the blank-ETT group exhibited a significant increase in tracheal mucosal thickness compared to the loaded-ETT and control groups. Average tracheal mucosal thickness was 112 ± 34, 242 ± 49, and 113 ± 43 μm in the control, blank-ETT, and loaded-ETT groups, respectively. The blank-ETT group exhibited a significant increase in tracheal fibrosis compared to the loaded-ETT and control groups. Relative fibrosis values were 0.07 ± 0.05, 0.154 ± 0.1, and 0.0984 ± 0.084% for the control, blank-ETT, and loaded-ETT groups, respectively. While SEM imaging showed normal surface structures in the control group, intubated blank-ETT rats showed severe surface structural damage, whereas only mild damage was observed in the loaded-ETT group. CONCLUSIONS local sustained release of MF via a self-designed drug-eluting ETT is a potential therapeutic approach which may significantly reduce tube-related upper airway morbidity.
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Affiliation(s)
- Forsan Jahshan
- Department of Otolaryngology-Head and Neck Surgery, Galilee Medical Center, Nahariya 2210001, Israel
| | - Aiman Abu Ammar
- Department of Pharmaceutical Engineering, Azrieli College of Engineering Jerusalem, Jerusalem 9103501, Israel
| | - Offir Ertracht
- Eliachar Research Laboratory, Galilee Medical Center, Nahariya 2210001, Israel
| | - Netanel Eisenbach
- Department of Otolaryngology-Head and Neck Surgery, Galilee Medical Center, Nahariya 2210001, Israel
| | - Amani Daoud
- Department of Otolaryngology-Head and Neck Surgery, Galilee Medical Center, Nahariya 2210001, Israel
| | - Eyal Sela
- Department of Otolaryngology-Head and Neck Surgery, Galilee Medical Center, Nahariya 2210001, Israel
| | - Shaul Atar
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Eyal Zussman
- NanoEngineering Group, Department of Mechanical Engineering, Technion, Israel Institute of Technology, Haifa 3200003, Israel
| | - Boris Fichtman
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Amnon Harel
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Maayan Gruber
- Department of Otolaryngology-Head and Neck Surgery, Galilee Medical Center, Nahariya 2210001, Israel.,Eliachar Research Laboratory, Galilee Medical Center, Nahariya 2210001, Israel.,Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
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14
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Abdel-Haq M, Alyan R, Abd-Rbo K, Kasem H, Abu Ammar A. Biomimetic clotrimazole-loaded PLGA films with enhanced adhesiveness for controlled drug release. Int J Pharm 2021; 601:120578. [PMID: 33839222 DOI: 10.1016/j.ijpharm.2021.120578] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/20/2021] [Accepted: 04/04/2021] [Indexed: 10/21/2022]
Abstract
Biomimetic adhesive surfaces have a number of potential applications in the pharmaceutical and biomedical fields. Fabrication techniques must be adapted to biocompatible and biodegradable materials required for controlled drug release applications. In this study biomimetic adhesive poly(lactic-co-glycolic acid) (PLGA) films loaded with different concentrations of clotrimazole (CTZ) were prepared without combining other adhesive excipients as a controlled release system for potential local oral drug delivery. The films were fully characterized from morphological point of view, and CTZ-loaded biomimetic films exhibited adequate surface pH values, high drug encapsulation efficiency, and loading content. The adhesion strength of the obtained films was significantly higher compared to a flat film reference under different contact conditions. Thermal analysis indicated a decrease of drug crystallinity upon incorporation into PLGA films. The in vitro release of CTZ from PLGA biomimetic films was tested in simulated saliva, and it exhibited an initial burst release, accompanied by a sustained release phase over 10 days. Finally, the mucoadhesive properties of the obtained films was studied using agar/mucin plate as a representative mucosal substrate, and the results demonstrated superior mucoadhesion potential of CTZ-loaded biomimetic film in comparison to its flat counterpart. Having demonstrated the ability to load CTZ into PLGA biomimetic films with enhanced adhesion capacity, the potential use in local oral drug delivery applications warrants further in vitro and in vivo investigations.
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Affiliation(s)
- Muhammad Abdel-Haq
- Department of Pharmaceutical Engineering, Azrieli College of Engineering, Jerusalem, Jerusalem 9103501, Israel
| | - Rayan Alyan
- Department of Pharmaceutical Engineering, Azrieli College of Engineering, Jerusalem, Jerusalem 9103501, Israel
| | - Kareem Abd-Rbo
- Department of Mechanical Engineering, Azrieli College of Engineering Jerusalem, Jerusalem 9103501, Israel
| | - Haytam Kasem
- Department of Mechanical Engineering, Azrieli College of Engineering Jerusalem, Jerusalem 9103501, Israel
| | - Aiman Abu Ammar
- Department of Pharmaceutical Engineering, Azrieli College of Engineering, Jerusalem, Jerusalem 9103501, Israel.
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15
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Lu J, Tian W, Cui L, Cai B, Zhang T, Huang N, Lu L, Zhu T. Lidocaine-eluting endotracheal tube effectively attenuates intubation related airway response. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:871. [PMID: 34164505 PMCID: PMC8184491 DOI: 10.21037/atm-21-1930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background Lidocaine (LDC) is a local anesthetic widely used to relieve intubation-related airway responses. However, low drug concentration and short effective duration of LDC is inadequate to provide a satisfactory anesthetic effect on the surface of the airway. The present study sought to develop a LDC-delivery endotracheal tube (ETT) to achieve high local drug concentration and sustained drug release with the aim of attenuating an intubation-related airway response. Methods ETTs and polyvinyl chloride (PVC) discs were coated with different molecular weight (MW) poly lactic-co-glycolic acid (PLGA: 50/50; MW: 3,000, 6,000, and 10,000) loaded with LDC by airbrush spray. The morphology of LDC-eluting coatings was analyzed using scanning electron microscopy. In vitro drug release was determined by ultraviolet spectrophotometer. An in vivo study was performed to investigate the differences in plasma LDC concentration, intubation tolerance, and tracheal tissue injury in rabbits undergoing intubation of blank, LDC-spray, or LDC-coated ETTs. Results Approximate 5 mg/cm2 coatings (containing 2.5 mg/cm2 LDC) were deposited onto the PVC discs and ETTs. While even distribution and smooth surfaces were generated in PLGA3000 + LDC and PLGA6000 + LDC coatings, PLGA10000 + LDC formed uneven and gullied coatings. Burst release within the first 4 h and sustained release for at least 5 days was achieved in vitro in PLGA + LDC coatings and the in vivo study demonstrated higher plasma LDC concentration and longer drug release duration in LDC-coated ETTs compared with LDC-spray. LDC-coated ETTs significantly improved intubation tolerance in rabbits, as measured by less general anesthetic consumption and longer tube tolerance duration in contrast to blank ETTs with or without LDC spray. Histology assessment showed less mucosal edema area in the PLGA3000 + LDC and PLGA6000 + LDC groups compared to the control, LDC-spray, and PLGA10000 + LDC groups. Among the different MW PLGAs, PLGA6000 presented optimal morphological characteristics, drug release, and anesthetic effect. Conclusions ETTs coated with PLGA + LDC effectively attenuate an intubation-related airway response via increasing local drug concentration and extending drug action duration, which demonstrates a potential therapeutic benefit for patients undergoing intubation.
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Affiliation(s)
- Jing Lu
- Department of Anesthesiology, Laboratory of Anesthesia & Critical Care Medicine, Translational Neuroscience Center, West China Hospital of Sichuan University, Chengdu, China.,Department of Anesthesiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Wenjie Tian
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China.,Department of Cardiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Linxian Cui
- Department of Cardiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Bing Cai
- Department of Anesthesiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Tingting Zhang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Nan Huang
- Key Lab of Advanced Technology for Materials of Education Ministry, School of Materials, Southwest Jiaotong University, Chengdu, China
| | - Lei Lu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Tao Zhu
- Department of Anesthesiology, Laboratory of Anesthesia & Critical Care Medicine, Translational Neuroscience Center, West China Hospital of Sichuan University, Chengdu, China
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16
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Schilling AL, Kulahci Y, Moore J, Wang EW, Lee SE, Little SR. A thermoresponsive hydrogel system for long-acting corticosteroid delivery into the paranasal sinuses. J Control Release 2020; 330:889-897. [PMID: 33157189 DOI: 10.1016/j.jconrel.2020.10.062] [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] [Received: 05/09/2020] [Revised: 10/26/2020] [Accepted: 10/29/2020] [Indexed: 12/16/2022]
Abstract
Delivering localized treatment to the paranasal sinuses for diseases such as chronic rhinosinusitis (CRS) is particularly challenging because of the small natural openings leading from the sinuses that can be further obstructed by presence of inflammation. As such, oral steroids, topical nasal sprays or irrigation, and surgery can be utilized to treat persistent sinonasal inflammation, but there exists a need for post-operative options for long-term steroid delivery to prevent disease recurrence. In the present study, a Thermogel, Extended-release Microsphere-based-delivery to the Paranasal Sinuses (TEMPS) is developed with the corticosteroid mometasone furoate. Specifically, the bioactive steroid is released for 4 weeks from poly(lactic-co-glycolic acid) (PLGA) microspheres embedded in a poly(N-isopropylacrylamide) (p-NIPAAm)-based hydrogel. The temperature-responsive system undergoes a reversible sol-gel transition at 34-35 °C such that it can be applied as a liquid at ambient temperature, conforming to the sinonasal epithelium as it gels. In a rabbit model of CRS, TEMPS was maintained in rabbit sinuses and effectively reduced sinonasal inflammation as characterized by micro-computed tomography and histopathology analysis. Ultimately, the combination of controlled release microspheres with a thermoresponsive hydrogel provides flexibility for encapsulating therapeutics in a reversible and conforming system for localized delivery to the sinuses.
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Affiliation(s)
- Andrea L Schilling
- Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA, 15213, United States of America
| | - Yalcin Kulahci
- Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA, 15213, United States of America
| | - John Moore
- Department of Otolaryngology-Head and Neck Surgery, University of Pittsburgh Medical Center, 1400 Locust Street, Suite 2100, Pittsburgh, PA 15219, United States of America
| | - Eric W Wang
- Department of Otolaryngology-Head and Neck Surgery, University of Pittsburgh Medical Center, 1400 Locust Street, Suite 2100, Pittsburgh, PA 15219, United States of America
| | - Stella E Lee
- Department of Otolaryngology-Head and Neck Surgery, University of Pittsburgh Medical Center, 1400 Locust Street, Suite 2100, Pittsburgh, PA 15219, United States of America
| | - Steven R Little
- Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA, 15213, United States of America; Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15213, United States of America; Department of Clinical and Translational Science, University of Pittsburgh, Forbes Tower, Suite 7057, Pittsburgh, PA 15213, United States of America; McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, United States of America; Department of Immunology, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, United States of America; Department of Pharmaceutical Science, University of Pittsburgh, 3501 Terrace Street, Pittsburgh, PA 15213, United States of America.
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17
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Chakhalian D, Shultz RB, Miles CE, Kohn J. Opportunities for biomaterials to address the challenges of COVID-19. J Biomed Mater Res A 2020; 108:1974-1990. [PMID: 32662571 PMCID: PMC7405498 DOI: 10.1002/jbm.a.37059] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 07/10/2020] [Indexed: 12/19/2022]
Abstract
The coronavirus disease 2019 (COVID‐19) pandemic has revealed major shortcomings in our ability to mitigate transmission of infectious viral disease and provide treatment to patients, resulting in a public health crisis. Within months of the first reported case in China, the virus has spread worldwide at an unprecedented rate. COVID‐19 illustrates that the biomaterials community was engaged in significant research efforts against bacteria and fungi with relatively little effort devoted to viruses. Accordingly, biomaterials scientists and engineers will have to participate in multidisciplinary antiviral research over the coming years. Although tissue engineering and regenerative medicine have historically dominated the field of biomaterials, current research holds promise for providing transformative solutions to viral outbreaks. To facilitate collaboration, it is imperative to establish a mutual language and adequate understanding between clinicians, industry partners, and research scientists. In this article, clinical perspectives are shared to clearly define emerging healthcare needs that can be met by biomaterials solutions. Strategies and opportunities for novel biomaterials intervention spanning diagnostics, treatment strategies, vaccines, and virus‐deactivating surface coatings are discussed. Ultimately this review serves as a call for the biomaterials community to become a leading contributor to the prevention and management of the current and future viral outbreaks.
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Affiliation(s)
- Daniel Chakhalian
- Department of Chemistry and Chemical Biology, Rutgers - The State University of New Jersey, Piscataway, New Jersey, USA
| | - Robert B Shultz
- Department of Chemistry and Chemical Biology, Rutgers - The State University of New Jersey, Piscataway, New Jersey, USA.,Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Catherine E Miles
- Department of Chemistry and Chemical Biology, Rutgers - The State University of New Jersey, Piscataway, New Jersey, USA
| | - Joachim Kohn
- Department of Chemistry and Chemical Biology, Rutgers - The State University of New Jersey, Piscataway, New Jersey, USA
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18
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Recent advances in the implant-based drug delivery in otorhinolaryngology. Acta Biomater 2020; 108:46-55. [PMID: 32289495 DOI: 10.1016/j.actbio.2020.04.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/31/2020] [Accepted: 04/03/2020] [Indexed: 12/13/2022]
Abstract
The surgical implant is an interdisciplinary therapeutic modality that offers unique advantages in the daily practice of otorhinolaryngology. Some well-known examples include cochlear implants, bone-anchored hearing aids, sinus stents, and tracheostomy tubes. Neuroprotective, osteogenic, anti-inflammatory, and antimicrobial effects are among their established or pursued functions. Implant-based drug delivery affords an efficient and potent approach to enhancing these therapeutic functions. Recent innovations have infiltrated all four elements of a drug-eluting implant. The purpose of this pre-clinical, biotechnology-oriented review is to discuss these developments in terms of the implant biomaterial, loaded medication, delivery pattern, and system fabrication. Cell-mediated neurotrophin release, fabrication of a hydroxyapatite-supported system, biodegradable polymer-based implants, and multiclass and multidrug delivery are some representative advancements. The ultimate goal here is to bridge the gap between biotechnology advances and clinical needs. The review is concluded with a perspective regarding the future opportunities and challenges in this popular and rapidly developing subject of research. STATEMENT OF SIGNIFICANCE: Surgical implants and local drug delivery are representative modern modalities of surgical treatment and medical treatment, respectively. Their synergy offers unique therapeutic advantages, such as minimal systemic side effects, proximity-related high efficiency, and potential absorbability. The applications of implant-based drug delivery have infiltrated otorhinolaryngology and head & neck surgery, which is well known for its related tissue diversity and surgical complexity. Examples discussed here include cochlear implants, bone-anchored hearing aids, sinus stents, and airway tubes. This timely review focuses primarily on the four fundamental components of an implant-based drug delivery system, namely implant biomaterial, loaded medication, delivery pattern, and system fabrication. A particular emphasis is placed upon the in vitro cellular and in vivo animal studies that demonstrate pre-clinical potentials.
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19
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Far J, Abdel-Haq M, Gruber M, Abu Ammar A. Developing Biodegradable Nanoparticles Loaded with Mometasone Furoate for Potential Nasal Drug Delivery. ACS OMEGA 2020; 5:7432-7439. [PMID: 32280885 PMCID: PMC7144157 DOI: 10.1021/acsomega.0c00111] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/16/2020] [Indexed: 05/30/2023]
Abstract
Intranasal drug administration is considered a routine in the treatment of many nasal conditions including chronic rhinosinusitis (CRS), which is a common disease involving long-term inflammation of the nasal mucosa. Topical nasal steroid treatment is safe and easy to use and plays a basic role in both nonsurgical and surgical treatments for CRS. Intranasal steroid therapy for various time intervals is commonly used before and after endoscopic CRS nasal surgeries to reduce inflammation and edema and to improve mucosal healing. The medication is currently administered via conventional nasal sprays; therefore, there is an incentive to develop more efficient drug delivery systems for the controlled release of topical steroids into the sinonasal cavities over a prolonged period of time. In this study, poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) loaded with mometasone furoate (MF) were generated using the nanoprecipitation method and characterized physicochemically and morphologically. MF NPs exhibited adequate physicochemical properties and high drug encapsulation efficiency and loading content. MF exhibited sustained release from NPs over 7 days in vitro with an initial burst release; various mathematical models were applied to determine the kinetics of drug release. Having demonstrated the ability to load MF in PLGA-NPs using the nanoprecipitation method for the first time, these NPs urge the need for additional investigations to demonstrate their therapeutic potential in nasal delivery applications.
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Affiliation(s)
- Jumana Far
- Department
of Pharmaceutical Engineering, Azrieli College
of Engineering Jerusalem, Jerusalem 9103501, Israel
| | - Muhammad Abdel-Haq
- Department
of Pharmaceutical Engineering, Azrieli College
of Engineering Jerusalem, Jerusalem 9103501, Israel
| | - Maayan Gruber
- Department
of Otolaryngology−Head and Neck Surgery, Galilee Medical Center, Nahariya 2210001, Israel
- Faculty
of Medicine in the Galilee, Bar-Ilan University, Safed 1311502, Israel
| | - Aiman Abu Ammar
- Department
of Pharmaceutical Engineering, Azrieli College
of Engineering Jerusalem, Jerusalem 9103501, Israel
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