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Chang W, Chen L, Chen K. The bioengineering application of hyaluronic acid in tissue regeneration and repair. Int J Biol Macromol 2024; 270:132454. [PMID: 38763255 DOI: 10.1016/j.ijbiomac.2024.132454] [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: 01/16/2024] [Revised: 05/04/2024] [Accepted: 05/15/2024] [Indexed: 05/21/2024]
Abstract
The multifaceted role of hyaluronic acid (HA) across diverse biomedical disciplines underscores its versatility in tissue regeneration and repair. HA hydrogels employ different crosslinking including chemical (chitosan, collagen), photo- initiation (riboflavin, LAP), enzymatic (HRP/H2O2), and physical interactions (hydrogen bonds, metal coordination). In biophysics and biochemistry, HA's signaling pathways, primarily through CD44 and RHAMM receptors, modulate cell behavior (cell migration; internalization of HA), inflammation, and wound healing. Particularly, smaller HA fragments stimulate inflammatory responses through toll-like receptors, impacting macrophages and cytokine expression. HA's implications in oncology highlight its involvement in tumor progression, metastasis, and treatment. Elevated HA in tumor stroma impacts apoptosis resistance and promotes tumor growth, presenting potential therapeutic targets to halt tumor progression. In orthopedics, HA's presence in synovial fluid aids in osteoarthritis management, as its supplementation alleviates pain, enhances synovial fluid's viscoelastic properties, and promotes cartilage integrity. In ophthalmology, HA's application in dry eye syndrome addresses symptoms by moisturizing the eyes, replenishing tear film deficiencies, and facilitating wound healing. Intravitreal injections and hydrogel-based systems offer versatile approaches for drug delivery and vitreous humor replacement. For skin regeneration and wound healing, HA hydrogel dressings exhibit exceptional properties by promoting moist wound healing and facilitating tissue repair. Integration of advanced regenerative tools like stem cells and solubilized amnion membranes into HA-based systems accelerates wound closure and tissue recovery. Overall, HA's unique properties and interactions render it a promising candidate across diverse biomedical domains, showcasing immense potentials in tissue regeneration and therapeutic interventions. Nevertheless, many detailed cellular and molecular mechanisms of HA and its applications remain unexplored and warrant further investigation.
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Affiliation(s)
- WeiTing Chang
- Department of Obstetrics and Gynecology, Taipei Tzu-Chi Hospital, The Buddhist Tzu-Chi Medical Foundation, Taipei, Taiwan
| | - LiRu Chen
- Department of Physical Medicine and Rehabilitation, Mackay Memorial Hospital, Taipei, Taiwan; Department of Mechanical Engineering, National YangMing ChiaoTung University, Hsinchu, Taiwan
| | - KuoHu Chen
- Department of Obstetrics and Gynecology, Taipei Tzu-Chi Hospital, The Buddhist Tzu-Chi Medical Foundation, Taipei, Taiwan; School of Medicine, Tzu-Chi University, Hualien, Taiwan.
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Wang LL, Tuohy S, Xu KL, Nace A, Yang R, Zheng Y, Burdick JA, Cotsarelis G. Local and Sustained Baricitinib Delivery to the Skin through Injectable Hydrogels Containing Reversible Thioimidate Adducts. Adv Healthc Mater 2024; 13:e2303256. [PMID: 38207170 PMCID: PMC11076163 DOI: 10.1002/adhm.202303256] [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: 09/25/2023] [Revised: 11/30/2023] [Indexed: 01/13/2024]
Abstract
Janus kinase (JAK) inhibitors are approved for many dermatologic disorders, but their use is limited by systemic toxicities including serious cardiovascular events and malignancy. To overcome these limitations, injectable hydrogels are engineered for the local and sustained delivery of baricitinib, a representative JAK inhibitor. Hydrogels are formed via disulfide crosslinking of thiolated hyaluronic acid macromers. Dynamic thioimidate bonds are introduced between the thiolated hyaluronic acid and nitrile-containing baricitinib for drug tethering, which is confirmed with 1H and 13C nuclear magnetic resonance (NMR). Release of baricitinib is tunable over six weeks in vitro and active in inhibiting JAK signaling in a cell line containing a luciferase reporter reflecting interferon signaling. For in vivo activity, baricitinib hydrogels or controls are injected intradermally into an imiquimod-induced mouse model of psoriasis. Imiquimod increases epidermal thickness in mice, which is unaffected when treated with baricitinib or hydrogel alone. Treatment with baricitinib hydrogels suppresses the increased epidermal thickness in mice treated with imiquimod, suggesting that the sustained and local release of baricitinib is important for a therapeutic outcome. This study is the first to utilize a thioimidate chemistry to deliver JAK inhibitors to the skin through injectable hydrogels, which has translational potential for treating inflammatory disorders.
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Affiliation(s)
- Leo L. Wang
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania
| | - Spencer Tuohy
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania
| | - Karen L. Xu
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania
- BioFrontiers Institute and Department of Chemical and Biological Engineering, College of Engineering and Applied Science, University of Colorado Boulder
| | - Arben Nace
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania
| | - Ruifeng Yang
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania
| | - Ying Zheng
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania
| | - Jason A. Burdick
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania
- BioFrontiers Institute and Department of Chemical and Biological Engineering, College of Engineering and Applied Science, University of Colorado Boulder
| | - George Cotsarelis
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania
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Nasrollahian S, Moradi F, Hadi N, Ranjbar S, Ranjbar R. An update on alternative therapy for Escherichia coli causing urinary tract infections; a narrative review. Photodiagnosis Photodyn Ther 2024; 46:104075. [PMID: 38574879 DOI: 10.1016/j.pdpdt.2024.104075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 03/30/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Urinary tract infections (UTIs) are the most common type of nosocomial infection and severe health issues because of the difficulties and frequent recurrence. Today, alternative methods such as sonodynamic therapy (SDT), photodynamic therapy (PDT) and herbal materials use for treating infections like UTI in many countries. METHOD We conducted searches of the biomedical databases (Google Scholar, Scopus, PubMed, and Web of sciences) to identify related studies from 2008 to 2023. RESULT SDT aims to use ultrasound to activate a sonosensitizer, which causes a biological effect by raising reactive oxygen species (ROS). When bacteria are exposed to ROS, several important effects occur: oxidative damage, DNA damage, protein dysfunction etc. SDT with herbal medicine significantly reduced the number of colony-forming units and bactericidal activity for Klebsiella pneumonia and E. coli. PDT is a promising treatment for cancer and microbial infections, combining a photosensitiser, light and tissue molecular oxygen. It involves a photosensitizer, light source, and oxygen, with variations affecting microbial binding and bactericidal activity. Factors affecting antibacterial properties include plant type, growing conditions, harvesting, and processing. This review highlights the recent advancements in sonodynamic, photodynamic, herbal, and bio-material-based approaches in the treatment of E. coli infections. CONCLUSIONS These alternative therapies offer exciting prospects for addressing UTIs, especially in cases where traditional antibiotic treatments may be less effective. Further research and clinical studies are warranted to fully explore the potential of these innovative treatment modalities in combating UTIs and improving patient outcomes.
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Affiliation(s)
- Sina Nasrollahian
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Moradi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nahal Hadi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sina Ranjbar
- Department of Microbiology, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
| | - Reza Ranjbar
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Micheels P, Porcello A, Bezzola T, Perrenoud D, Quinodoz P, Kalia Y, Allémann E, Laurent A, Jordan O. Clinical Perspectives on the Injectability of Cross-Linked Hyaluronic Acid Dermal Fillers: A Standardized Methodology for Commercial Product Benchmarking with Inter-Injector Assessments. Gels 2024; 10:101. [PMID: 38391431 PMCID: PMC10888303 DOI: 10.3390/gels10020101] [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: 01/10/2024] [Revised: 01/20/2024] [Accepted: 01/24/2024] [Indexed: 02/24/2024] Open
Abstract
The injectability of cross-linked hyaluronic acid (HA) dermal fillers is influenced by polymer concentration, polymer cross-linking type and degree, the presence of lidocaine or other functional excipients, types of syringes, and injection techniques. Finished product injectability constitutes a critical quality attribute for clinical injectors, as it strongly influences product applicability and ease of use in aesthetic medicine. While injectable product extrusion force specifications are provided by the respective device manufacturers, the qualitative informative value of such datasets is low for injectors wishing to compare product brands and technologies from an injectability standpoint. Therefore, the present study comparatively assessed 28 cross-linked HA dermal fillers (JUVÉDERM®, Restylane®, BELOTERO®, TEOSYAL RHA®, and STYLAGE® brands) using various injectability benchmarking setups for enhanced clinical-oriented relevance. Manual product injections were performed by three specialized and experienced clinicians, whereas automatic product extrusion was performed using a Texture Analyzer instrument. The various hydrogel products were injected into ex vivo human skin and into SimSkin® cutaneous equivalents to appropriately account for injection-related counterpressure. The injectability results revealed important variability between and within product brands, with a strong influence of the local anesthetic lidocaine, HA contents, and needle gauge size. Critical appraisals of the investigated products were performed, notably from manufacturing process-based and clinical ease of application-based standpoints, centered on respective experimental injectability quality levels. Generally, it was confirmed that each HA-based dermal filler product requires specific expertise for optimal injection, mainly due to differing viscoelastic characteristics and injectability attributes. Overall, the present study set forth evidence-based and clinical-oriented rationale elements confirming the importance for injectors to work with injectable products with which they are experienced and comfortable to optimize clinical results.
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Affiliation(s)
| | - Alexandre Porcello
- School of Pharmaceutical Sciences, University of Geneva, CH-1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CH-1211 Geneva, Switzerland
| | | | | | | | - Yogeshvar Kalia
- School of Pharmaceutical Sciences, University of Geneva, CH-1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CH-1211 Geneva, Switzerland
| | - Eric Allémann
- School of Pharmaceutical Sciences, University of Geneva, CH-1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CH-1211 Geneva, Switzerland
| | - Alexis Laurent
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1015 Lausanne, Switzerland
- Manufacturing Department, TEC-PHARMA SA, CH-1038 Bercher, Switzerland
- Manufacturing Department, LAM Biotechnologies SA, CH-1066 Epalinges, Switzerland
| | - Olivier Jordan
- School of Pharmaceutical Sciences, University of Geneva, CH-1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CH-1211 Geneva, Switzerland
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Lv K, Lou P, Liu S, Wang Y, Yang J, Zhou P, Zhou X, Lu Y, Wang H, Cheng J, Liu J. Injectable Multifunctional Composite Hydrogel as a Combination Therapy for Preventing Postsurgical Adhesion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2303425. [PMID: 37649233 DOI: 10.1002/smll.202303425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/24/2023] [Indexed: 09/01/2023]
Abstract
Postsurgical adhesion (PA) is a common and serious postoperative complication that affects millions of patients worldwide. However, current commercial barrier materials are insufficient to inhibit diverse pathological factors during PA formation, and thus, highly bioactive materials are needed. Here, this work designs an injectable multifunctional composite hydrogel that can serve as a combination therapy for preventing PA. In brief, this work reveals that multiple pathological events, such as chronic inflammatory and fibrotic processes, contribute to adhesion formation in vivo, and such processes can not be attenuated by barrier material (e.g., hydrogel) alone treatments. To solve this limitation, this work designs a composite hydrogel made of the cationic self-assembling peptide KLD2R and TGF-β receptor inhibitor (TGF-βRi)-loaded mesenchymal stem cell-derived nanovesicles (MSC-NVs). The resulting composite hydrogel displays multiple functions, including physical separation of the injured tissue areas, antibacterial effects, and local delivery and sustained release of anti-inflammatory MSC-NVs and antifibrotic TGF-βRi. As a result, this composite hydrogel effectively inhibited local inflammation, fibrosis and adhesion formation in vivo. Moreover, the hydrogel also exhibits good biocompatibility and biodegradability in vivo. Together, the results highlight that this "all-in-one" composite hydrogel strategy may provide insights into designing advanced therapies for many types of tissue injury.
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Affiliation(s)
- Ke Lv
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Peng Lou
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Shuyun Liu
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yizhuo Wang
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Jinlin Yang
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, West China Hospital, Sichuan University, Chengdu, China
| | - Pingya Zhou
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Xiyue Zhou
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yanrong Lu
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Hongren Wang
- Department of Pathogenic Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jingqiu Cheng
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Jingping Liu
- Department of General Surgery and NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
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Li XZ, Chiang CF, Lin YH, Chen TM, Wang CH, Tzeng YS, Cui HY. Safety and efficacy of hyaluronic acid injectable filler in the treatment of nasolabial fold wrinkle: a randomized, double-blind, self-controlled clinical trial. J DERMATOL TREAT 2023; 34:2190829. [PMID: 37694979 DOI: 10.1080/09546634.2023.2190829] [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: 01/05/2023] [Accepted: 03/09/2023] [Indexed: 09/12/2023]
Abstract
INTRODUCTION The injectable skin fillers available for soft tissue augmentation are constantly growing, providing esthetic surgeons with more options in the treatment of scars, lines, and wrinkles. Hyaluronic acid (HA)-derived injectable fillers are ideal to reduce the appearance of nasolabial folding. This study investigated the efficacy and safety of the commercially available HA filler from Maxigen Biotech Inc. (MBI-FD) in the treatment of nasolabial folds (NLFs). METHODS We analyzed 1,4-butanediol diglycidyl ether (BDDE) residues and injection force test and observed the protein content in MBI-FD, and then was cultured in fibroblast L929 cells and examined for cytotoxicity. Finally, 95 healthy participants underwent dermal filler injection therapy to evaluate the efficacy and safety for 24 and 52 weeks, respectively. RESULTS BDDE residues in MBI-FD was <0.125 µg/mL. MBI-FD was fitted using 27- and 30-G injection needles with an average pushing force of 14.30 ± 2.07 and 36.43 ± 3.11 N, respectively. Sodium hyaluronate protein in MBI-FD was 7.19 µg/g. The cell viabilities of 1× and 0.5× MBI-FD were 83.25% ± 3.58% and 82.23% ± 1.85%, respectively, indicating MBI-FD had no cytotoxicity, and decreased NLF wrinkles with no serious adverse events. CONCLUSION MBI-FD is an effective filler for tissue augmentation of the NLFs and may be a suitable candidate as an injectable dermal filler for tissue augmentation in humans in the future.
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Affiliation(s)
- Xing-Zhou Li
- Department of Plastic Surgery, Hainan Women and Children's Medical Center, Hainan Province, China
| | - Chi-Fu Chiang
- Research & Design Center, TCI CO., Ltd, Taipei, Taiwan
| | | | - Tim-Mo Chen
- Division of Plastic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chih-Hsing Wang
- Division of Plastic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yuan-Sheng Tzeng
- Division of Plastic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hai-Yan Cui
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
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Sarma S, Deka DJ, Rajak P, Laloo D, Das T, Chetia P, Saha D, Bharali A, Deka B. Potential injectable hydrogels as biomaterials for central nervous system injury: A narrative review. IBRAIN 2023; 9:402-420. [PMID: 38680508 PMCID: PMC11045191 DOI: 10.1002/ibra.12137] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 05/01/2024]
Abstract
Numerous modalities exist through which the central nervous system (CNS) may sustain injury or impairment, encompassing traumatic incidents, stroke occurrences, and neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. Presently available pharmacological and therapeutic interventions are incapable of restoring or regenerating damaged CNS tissue, leading to substantial unmet clinical needs among patients with CNS ailments or injuries. To address and facilitate the recovery of the impaired CNS, cell-based repair strategies encompass multiple mechanisms, such as neuronal replacement, therapeutic factor secretion, and the promotion of host brain plasticity. Despite the progression of cell-based CNS reparation as a therapeutic strategy throughout the years, substantial barriers have impeded its widespread implementation in clinical settings. The integration of cell technologies with advancements in regenerative medicine utilizing biomaterials and tissue engineering has recently facilitated the surmounting of several of these impediments. This comprehensive review presents an overview of distinct CNS conditions necessitating cell reparation, in addition to exploring potential biomaterial methodologies that enhance the efficacy of treating brain injuries.
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Affiliation(s)
- Santa Sarma
- Girijananda Chowdhury Institute of Pharmaceutical ScienceAssam Science and Technology UniversityGuwahatiAssamIndia
| | - Dhruva J. Deka
- Girijananda Chowdhury Institute of Pharmaceutical ScienceAssam Science and Technology UniversityGuwahatiAssamIndia
| | - Prakash Rajak
- Department of Pharmaceutical SciencesDibrugarh UniversityDibrugarhAssamIndia
| | - Damiki Laloo
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
| | - Trishna Das
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
| | - Purbajit Chetia
- Department of PharmacologyNETES Institute of Pharmaceutical Science, Nemcare Group of Institutes, MirzaGuwahatiAssamIndia
| | - Dipankar Saha
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
| | - Alakesh Bharali
- Department of Pharmaceutical SciencesDibrugarh UniversityDibrugarhAssamIndia
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
| | - Bhargab Deka
- School of Pharmaceutical SciencesGirijananda Chowdhury UniversityGuwahatiAssamIndia
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Iaconisi GN, Gallo N, Caforio L, Ricci V, Fiermonte G, Della Tommasa S, Bernetti A, Dolce V, Farì G, Capobianco L. Clinical and Biochemical Implications of Hyaluronic Acid in Musculoskeletal Rehabilitation: A Comprehensive Review. J Pers Med 2023; 13:1647. [PMID: 38138874 PMCID: PMC10744407 DOI: 10.3390/jpm13121647] [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: 10/13/2023] [Revised: 11/20/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Hyaluronic acid (HA) naturally occurs as a biopolymer in the human body, primarily in connective tissues like joints and skin. Functioning as a vital element of synovial fluid, it lubricates joints, facilitating fluid movement and diminishing bone friction to protect articular well-being. Its distinctive attributes encompass notable viscosity and water retention capacities, ensuring flexibility and absorbing shock during motion. Furthermore, HA has gained significant attention for its potential benefits in various medical applications, including rehabilitation. Ongoing research explores its properties and functions, especially its biomedical applications in several clinical trials, with a focus on its role in improving rehabilitation outcomes. But the clinical and biochemical implications of HA in musculoskeletal rehabilitation have yet to be fully explored. This review thoroughly investigates the properties and functions of HA while highlighting its biomedical applications in different clinical trials, with a special emphasis on its role in rehabilitation. The presented findings provide evidence that HA, as a natural substance, enhances the outcomes of musculoskeletal rehabilitation through its exceptional mechanical and biochemical effects.
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Affiliation(s)
- Giorgia Natalia Iaconisi
- Department of Biological and Environmental Science and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy; (G.N.I.); (A.B.)
| | - Nunzia Gallo
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy;
| | - Laura Caforio
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, Aldo Moro University, 70121 Bari, Italy;
| | - Vincenzo Ricci
- Physical and Rehabilitation Medicine Unit, Luigi Sacco University Hospital, ASST Fatebenefratelli-Sacco, 20157 Milan, Italy;
| | - Giuseppe Fiermonte
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, 70125 Bari, Italy;
| | - Simone Della Tommasa
- Department for Horses, Faculty of Veterinary Medicine, Leipzig University, 04109 Leipzig, Germany;
| | - Andrea Bernetti
- Department of Biological and Environmental Science and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy; (G.N.I.); (A.B.)
| | - Vincenza Dolce
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy;
| | - Giacomo Farì
- Department of Translational Biomedicine and Neuroscience (DiBraiN), Aldo Moro University, 70121 Bari, Italy
| | - Loredana Capobianco
- Department of Biological and Environmental Science and Technologies (Di.S.Te.B.A.), University of Salento, 73100 Lecce, Italy; (G.N.I.); (A.B.)
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Yakout BK, Kamel FR, Khadr MAEAA, Heikal LAH, El-Kimary GI. Efficacy of hyaluronic acid gel and photobiomodulation therapy on wound healing after surgical gingivectomy: a randomized controlled clinical trial. BMC Oral Health 2023; 23:805. [PMID: 37891549 PMCID: PMC10612174 DOI: 10.1186/s12903-023-03519-5] [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: 04/19/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Surgical gingivectomy can be considered the gold standard treatment for gingival enlargement. The healing of wound site after gingivectomy occurs slowly by secondary intention. To accelerate the wound healing process, several studies have been conducted evaluating the effect of various treatment modalities. Photobiomodulation therapy (PBMT) was proposed to provide minimally invasive and painless treatment as well as to decrease discomfort of the patient following the surgical process. Another factor that is expected to improve the healing after surgery is topical application of chemotherapeutic agents such as Hyaluronic acid (HA). This study aims to assess the effect of topically applied HA gel after PBMT on the healing of wound site after surgical gingivectomy. METHODS This randomized controlled clinical trial included twenty-six surgical gingivectomy wound sites, equally divided into two groups, Group-I (test group): the surgical sites after gingivectomy were irradiated with a diode laser (980 nm, 0.2 W) then covered by 2% HA gel loaded in a special custom-made soft transparent tissue guard appliance for each patient. Group II (control group): the surgical sites were irradiated with a diode laser (980 nm, 0.2 W) only. Wound healing was assessed subjectively by Landry healing index on the 3rd, 7th, 14th and 21st days after surgery, and pain perception was assessed by the patients using visual analog scale (VAS) throughout the 21 days of the follow up period. Comparisons between the two study groups were performed using Mann-Whitney U test, while comparisons between different time points were performed using Friedman test. Significance was inferred at p value < 0.05. RESULTS By the end of the follow-up period, surgical sites of the test group showed excellent healing compared to the control group. There were no significant differences in VAS scores between both groups (p > 0.05). CONCLUSIONS Application of 2% HA gel as an adjunctive to PBMT was found to have significant clinical effects and higher power of repair among test group when compared to that achieved by PBMT alone in control group. TRIAL REGISTRATION This study was retrospectively registered on ClinicalTrials.gov and first posted on 28th of March 2023 with an identifier number: NCT05787912.
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Affiliation(s)
- Basma Khalil Yakout
- Department of Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology, Faculty of Dentistry, Alexandria University, Champolion St. Azarita, Alexandria, 21521, Egypt.
| | - Fatma Ramzy Kamel
- Department of Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology, Faculty of Dentistry, Alexandria University, Champolion St. Azarita, Alexandria, 21521, Egypt
| | - Maha Abd El-Aziz Abou Khadr
- Department of Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology, Faculty of Dentistry, Alexandria University, Champolion St. Azarita, Alexandria, 21521, Egypt
| | | | - Gillan Ibrahim El-Kimary
- Department of Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology, Faculty of Dentistry, Alexandria University, Champolion St. Azarita, Alexandria, 21521, Egypt
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Shriky B, Babenko M, Whiteside BR. Dissolving and Swelling Hydrogel-Based Microneedles: An Overview of Their Materials, Fabrication, Characterization Methods, and Challenges. Gels 2023; 9:806. [PMID: 37888379 PMCID: PMC10606778 DOI: 10.3390/gels9100806] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/29/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023] Open
Abstract
Polymeric hydrogels are a complex class of materials with one common feature-the ability to form three-dimensional networks capable of imbibing large amounts of water or biological fluids without being dissolved, acting as self-sustained containers for various purposes, including pharmaceutical and biomedical applications. Transdermal pharmaceutical microneedles are a pain-free drug delivery system that continues on the path to widespread adoption-regulatory guidelines are on the horizon, and investments in the field continue to grow annually. Recently, hydrogels have generated interest in the field of transdermal microneedles due to their tunable properties, allowing them to be exploited as delivery systems and extraction tools. As hydrogel microneedles are a new emerging technology, their fabrication faces various challenges that must be resolved for them to redeem themselves as a viable pharmaceutical option. This article discusses hydrogel microneedles from a material perspective, regardless of their mechanism of action. It cites the recent advances in their formulation, presents relevant fabrication and characterization methods, and discusses manufacturing and regulatory challenges facing these emerging technologies before their approval.
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Affiliation(s)
- Bana Shriky
- Faculty of Engineering and Digital Technologies, University of Bradford, Bradford BD7 1DP, UK;
| | | | - Ben R. Whiteside
- Faculty of Engineering and Digital Technologies, University of Bradford, Bradford BD7 1DP, UK;
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Iaconisi GN, Lunetti P, Gallo N, Cappello AR, Fiermonte G, Dolce V, Capobianco L. Hyaluronic Acid: A Powerful Biomolecule with Wide-Ranging Applications-A Comprehensive Review. Int J Mol Sci 2023; 24:10296. [PMID: 37373443 DOI: 10.3390/ijms241210296] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/08/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Hyaluronic acid (HA) is a glycosaminoglycan widely distributed in the human body, especially in body fluids and the extracellular matrix of tissues. It plays a crucial role not only in maintaining tissue hydration but also in cellular processes such as proliferation, differentiation, and the inflammatory response. HA has demonstrated its efficacy as a powerful bioactive molecule not only for skin antiaging but also in atherosclerosis, cancer, and other pathological conditions. Due to its biocompatibility, biodegradability, non-toxicity, and non-immunogenicity, several HA-based biomedical products have been developed. There is an increasing focus on optimizing HA production processes to achieve high-quality, efficient, and cost-effective products. This review discusses HA's structure, properties, and production through microbial fermentation. Furthermore, it highlights the bioactive applications of HA in emerging sectors of biomedicine.
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Affiliation(s)
- Giorgia Natalia Iaconisi
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy
| | - Paola Lunetti
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy
| | - Nunzia Gallo
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
| | - Anna Rita Cappello
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Giuseppe Fiermonte
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, 70125 Bari, Italy
| | - Vincenza Dolce
- Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Loredana Capobianco
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy
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12
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Lehká K, Starigazdová J, Mrázek J, Nešporová K, Šimek M, Pavlík V, Chmelař J, Čepa M, Barrios-Llerena ME, Kocurková A, Kriváková E, Koukalová L, Kubala L, Velebný V. An in vitro model that mimics the foreign body response in the peritoneum: Study of the bioadhesive properties of HA-based materials. Carbohydr Polym 2023; 310:120701. [PMID: 36925239 DOI: 10.1016/j.carbpol.2023.120701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 02/03/2023] [Accepted: 02/12/2023] [Indexed: 02/19/2023]
Abstract
A cascade of reactions known as the foreign body response (FBR) follows the implantation of biomaterials leading to the formation of a fibrotic capsule around the implant and subsequent health complications. The severity of the FBR is driven mostly by the physicochemical characteristics of implanted material, the method and place of implantation, and the degree of immune system activation. Here we present an in vitro model for assessing new materials with respect to their potential to induce a FBR in the peritoneum. The model is based on evaluating protein sorption and cell adhesion on the implanted material. We tested our model on the free-standing films prepared from hyaluronan derivatives with different hydrophobicity, swelling ratio, and rate of solubilization. The proteomic analysis of films incubated in the mouse peritoneum showed that the presence of fibrinogen was driving the cell adhesion. Neither the film surface hydrophobicity/hydrophilicity nor the quantity of adsorbed proteins were decisive for the induction of the long-term cell adhesion leading to the FBR, while the dissolution rate of the material proved to be a crucial factor. Our model thus helps determine the probability of a FBR to materials implanted in the peritoneum while limiting the need for in vivo animal testing.
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Affiliation(s)
- Kateřina Lehká
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Jana Starigazdová
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Jiří Mrázek
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic; Department of Medical Biophysics and Medical Informatics, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | - Matěj Šimek
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Vojtěch Pavlík
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Josef Chmelař
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Martin Čepa
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | | | - Anna Kocurková
- Institute of Experimental Biology, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czech Republic; Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 65 Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, 656 91 Brno, Czech Republic
| | - Eva Kriváková
- Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 65 Brno, Czech Republic
| | - Ludmila Koukalová
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Lukáš Kubala
- Institute of Experimental Biology, Faculty of Science, Masaryk University, Kotlářská 267/2, 611 37 Brno, Czech Republic; Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 65 Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital, Pekařská 53, 656 91 Brno, Czech Republic
| | - Vladimír Velebný
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
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13
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Lyophilized Progenitor Tenocyte Extracts: Sterilizable Cytotherapeutic Derivatives with Antioxidant Properties and Hyaluronan Hydrogel Functionalization Effects. Antioxidants (Basel) 2023; 12:antiox12010163. [PMID: 36671025 PMCID: PMC9854832 DOI: 10.3390/antiox12010163] [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: 12/14/2022] [Revised: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 01/12/2023] Open
Abstract
Cultured primary progenitor tenocytes in lyophilized form were previously shown to possess intrinsic antioxidant properties and hyaluronan-based hydrogel viscosity-modulating effects in vitro. The aim of this study was to prepare and functionally characterize several stabilized (lyophilized) cell-free progenitor tenocyte extracts for inclusion in cytotherapy-inspired complex injectable preparations. Fractionation and sterilization methods were included in specific biotechnological manufacturing workflows of such extracts. Comparative and functional-oriented characterizations of the various extracts were performed using several orthogonal descriptive, colorimetric, rheological, mechanical, and proteomic readouts. Specifically, an optimal sugar-based (saccharose/dextran) excipient formula was retained to produce sterilizable cytotherapeutic derivatives with appropriate functions. It was shown that extracts containing soluble cell-derived fractions possessed conserved and significant antioxidant properties (TEAC) compared to the freshly harvested cellular starting materials. Progenitor tenocyte extracts submitted to sub-micron filtration (0.22 µm) and 60Co gamma irradiation terminal sterilization (5−50 kGy) were shown to retain significant antioxidant properties and hyaluronan-based hydrogel viscosity modulating effects. Hydrogel combination products displayed important efficacy-related characteristics (friction modulation, tendon bioadhesivity) with significant (p < 0.05) protective effects of the cellular extracts in oxidative environments. Overall, the present study sets forth robust control methodologies (antioxidant assays, H2O2-challenged rheological setups) for stabilized cell-free progenitor tenocyte extracts. Importantly, it was shown that highly sensitive phases of cytotherapeutic derivative manufacturing process development (purification, terminal sterilization) allowed for the conservation of critical biological extract attributes.
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14
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Brtková B, Hermannová M, Chmelař J, Nešporová K, Kocurková A, Kubala L, Ambrožová G, Velebný V, Šimek M. Intraperitoneally administered native and lauroyl-modified hyaluronan films: Pharmacokinetic and metabolism studies. Carbohydr Polym 2023; 299:120201. [PMID: 36876812 DOI: 10.1016/j.carbpol.2022.120201] [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: 07/15/2022] [Revised: 09/16/2022] [Accepted: 10/05/2022] [Indexed: 11/09/2022]
Abstract
Hyaluronan is being investigated extensively as a biocompatible and biodegradable material for use in biomedical applications. While the derivatization of hyaluronan broadens its potential therapeutic use, the pharmacokinetics and metabolization of the derivatives must be thoroughly investigated. The fate of intraperitoneally-applied native and lauroyl-modified hyaluronan films with varying degrees of substitution was investigated in-vivo employing an exclusive stable isotope-labelling approach and LC-MS analysis. The materials were gradually degraded in peritoneal fluid, lymphatically absorbed, preferentially metabolized in the liver and eliminated without any observable accumulation in the body. Hyaluronan acylation prolongs its presence in the peritoneal cavity depending on the degree of substitution. The safety of acylated hyaluronan derivatives was confirmed via a metabolic study that revealed its degradation into non-toxic metabolites, i.e. native hyaluronan and free fatty acid. Stable isotope-labelling with LC-MS tracking comprises a high-quality procedure for the investigation of the metabolism and biodegradability of hyaluronan-based medical products in-vivo.
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Affiliation(s)
- Barbora Brtková
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic; Department of Analytical Chemistry, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | | | - Josef Chmelař
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic
| | | | - Anna Kocurková
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic; Institute of Biophysics of the Czech Academy of Sciences, Brno, Czech Republic; Institute of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Lukáš Kubala
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic; Institute of Biophysics of the Czech Academy of Sciences, Brno, Czech Republic; Institute of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Gabriela Ambrožová
- Institute of Biophysics of the Czech Academy of Sciences, Brno, Czech Republic
| | - Vladimír Velebný
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic
| | - Matěj Šimek
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic.
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15
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Gao N, Fu Y, Gong H, Liu H, Li W. Hyaluronic acid and cholecalciferol conjugate based nanomicelles: Synthesis, characterization, and cytotoxicity against MCF-7 breast cancer cells. Carbohydr Res 2022; 522:108706. [DOI: 10.1016/j.carres.2022.108706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 10/11/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022]
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16
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Juhaščik M, Kováčik A, Huerta-Ángeles G. Recent Advances of Hyaluronan for Skin Delivery: From Structure to Fabrication Strategies and Applications. Polymers (Basel) 2022; 14:polym14224833. [PMID: 36432961 PMCID: PMC9694326 DOI: 10.3390/polym14224833] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 11/12/2022] Open
Abstract
Hyaluronan (HA) plays a fundamental role in maintaining the homeostasis on skin health. Furthermore, the effect of HA in skin inflammatory diseases is worth studying in the next future. HA and its conjugates change the solubility of active pharmaceutical ingredients, improve emulsion properties, prolong stability, reduce immunogenicity, and provide targeting. HA penetrates to deeper layers of the skin via several mechanisms, which depend on the macromolecular structure and composition of the formulation. The cellular and molecular mechanisms involved in epidermal dysfunction and skin aging are not well understood. Nevertheless, HA is known to selectively activate CD44-mediated keratinocyte signaling that regulates its proliferation, migration, and differentiation. The molecular size of HA is critical for molecular mechanisms and interactions with receptors. High molecular weight HA is used in emulsions and low molecular weight is used to form nanostructured lipid carriers, polymeric micelles, bioconjugates, and nanoparticles. In the fabrication of microneedles, HA is combined with other polymers to enhance mechanical properties for piercing the skin. Hence, this review aims to provide an overview of the current state of the art and last reported ways of processing, and applications in skin drug delivery, which will advocate for their broadened use in the future.
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Affiliation(s)
- Martin Juhaščik
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolnί Dobrouč, Czech Republic
- Skin Barrier Research Group, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Andrej Kováčik
- Skin Barrier Research Group, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Gloria Huerta-Ángeles
- Contipro a.s., Dolní Dobrouč 401, 561 02 Dolnί Dobrouč, Czech Republic
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského Nám. 2, 162 06 Prague, Czech Republic
- Correspondence:
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17
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Wang X, Zhang X, Li Z, Xiao X, Guo S, Pan D, Zhang H, Tian X, Gong Q, Gu Z, Ma X, Luo K. A hyaluronic acid-derived imaging probe for enhanced imaging and accurate staging of liver fibrosis. Carbohydr Polym 2022; 295:119870. [DOI: 10.1016/j.carbpol.2022.119870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/24/2022] [Accepted: 07/11/2022] [Indexed: 11/26/2022]
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18
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Bridging a Century-Old Problem: The Pathophysiology and Molecular Mechanisms of HA Filler-Induced Vascular Occlusion (FIVO)—Implications for Therapeutic Interventions. Molecules 2022; 27:molecules27175398. [PMID: 36080164 PMCID: PMC9458226 DOI: 10.3390/molecules27175398] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 01/10/2023] Open
Abstract
Biocompatible hyaluronic acid (HA, hyaluronan) gel implants have altered the therapeutic landscape of surgery and medicine, fostering an array of innovative products that include viscosurgical aids, synovial supplements, and drug-eluting nanomaterials. However, it is perhaps the explosive growth in the cosmetic applications of injectable dermal fillers that has captured the brightest spotlight, emerging as the dominant modality in plastic surgery and aesthetic medicine. The popularity surge with which injectable HA fillers have risen to in vogue status has also brought a concomitant increase in the incidence of once-rare iatrogenic vaso-occlusive injuries ranging from disfiguring facial skin necrosis to disabling neuro-ophthalmological sequelae. As our understanding of the pathophysiology of these injuries has evolved, supplemented by more than a century of astute observations, the formulation of novel therapeutic and preventative strategies has permitted the amelioration of this burdensome complication. In this special issue article, we review the relevant mechanisms underlying HA filler-induced vascular occlusion (FIVO), with particular emphasis on the rheo-mechanical aspects of vascular blockade; the thromboembolic potential of HA mixtures; and the tissue-specific ischemic susceptibility of microvascular networks, which leads to underperfusion, hypoxia, and ultimate injury. In addition, recent therapeutic advances and novel considerations on the prevention and management of muco-cutaneous and neuro-ophthalmological complications are examined.
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19
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Tambe V, Patel S, Shard A, Behera SK, Polaka S, Anup N, Gadeval A, Kalia K, Tekade RK. Dendronized Polymeric Biomaterial for Loading, Stabilization, and Targeted Cytosolic Delivery of microRNA in Cancer Cells. ACS APPLIED BIO MATERIALS 2022. [DOI: 10.1021/acsabm.2c00179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vishakha Tambe
- Department of Pharmaceutics, Department of Pharmaceuticals, Ministry of Chem-icals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Sagarkumar Patel
- Department of Medicinal Chemistry, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Amit Shard
- Department of Medicinal Chemistry, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Santosh Kumar Behera
- Central Instrumentation Facility, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Suryanarayana Polaka
- Department of Pharmaceutics, Department of Pharmaceuticals, Ministry of Chem-icals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Neelima Anup
- Department of Pharmaceutics, Department of Pharmaceuticals, Ministry of Chem-icals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Anuradha Gadeval
- Department of Pharmaceutics, Department of Pharmaceuticals, Ministry of Chem-icals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Kiran Kalia
- Department of Biotechnology, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Rakesh Kumar Tekade
- Department of Pharmaceutics, Department of Pharmaceuticals, Ministry of Chem-icals and Fertilizers, National Institute of Pharmaceutical Education and Research (NIPER)─Ahmedabad, An Institute of National Importance, Government of India, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
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20
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Lv B, Shen N, Cheng Z, Chen Y, Ding H, Yuan J, Zhao K, Zhang Y. Strategies for Biomaterial-Based Spinal Cord Injury Repair via the TLR4-NF-κB Signaling Pathway. Front Bioeng Biotechnol 2022; 9:813169. [PMID: 35600111 PMCID: PMC9116428 DOI: 10.3389/fbioe.2021.813169] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/13/2021] [Indexed: 12/23/2022] Open
Abstract
The repair and motor functional recovery after spinal cord injury (SCI) has remained a clinical challenge. Injury-induced gliosis and inflammation lead to a physical barrier and an extremely inhibitory microenvironment, which in turn hinders the recovery of SCI. TLR4-NF-κB is a classic implant-related innate immunomodulation signaling pathway and part of numerous biomaterial-based treatment strategies for SCI. Numerous experimental studies have demonstrated that the regulation of TLR4-NF-κB signaling pathway plays an important role in the alleviation of inflammatory responses, the modulation of autophagy, apoptosis and ferroptosis, and the enhancement of anti-oxidative effect post-SCI. An increasing number of novel biomaterials have been fabricated as scaffolds and carriers, loaded with phytochemicals and drugs, to inhibit the progression of SCI through regulation of TLR4-NF-κB. This review summarizes the empirical strategies for the recovery after SCI through individual or composite biomaterials that mediate the TLR4-NF-κB signaling pathway.
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Affiliation(s)
- Bin Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Naiting Shen
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhangrong Cheng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuhang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua Ding
- Department of Orthopedics, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Jishan Yuan
- Department of Orthopedics, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Kangchen Zhao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yukun Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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21
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Albumin-hyaluronic acid colloidal nanocarriers: Effect of human and bovine serum albumin for intestinal ibuprofen release enhancement. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Nanoforming Hyaluronan-Based Thermoresponsive Hydrogels: Optimized and Tunable Functionality in Osteoarthritis Management. Pharmaceutics 2022; 14:pharmaceutics14030659. [PMID: 35336034 PMCID: PMC8955188 DOI: 10.3390/pharmaceutics14030659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023] Open
Abstract
Hyaluronic acid (HA) constitutes a versatile chemical framework for the development of osteoarthritis pain treatment by means of injection in the joints, so-called viscosupplementation. Without appropriate physico-chemical tuning, such preparations are inherently hindered by prompt in vivo degradation, mediated by hyaluronidases and oxidative stress. To prolong hydrogel residence time and confer optimized product functionality, novel thermoresponsive nanoforming HA derivatives were proposed and characterized. Combined use of sulfo-dibenzocyclooctyne-PEG4-amine linkers and poly(N-isopropylacrylamide) in green chemistry process enabled the synthesis of HA-based polymers, with in situ obtention of appropriate viscoelastic properties. Spontaneous and reversible thermoformation of nanoparticles above 30 °C was experimentally confirmed. Lead formulations were compared to a commercially available HA-based product and shown significantly better in vitro resistance to enzymatic and oxidative degradation, required half the injection force with optimal viscoelastic hydrogel properties in equine synovial fluids. Results highlighted the vast potential of appropriately engineered HA-based systems as next-generation long-acting viscosupplementation products for osteoarthritic patients.
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23
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The Degradation of Hyaluronan in the Skin. Biomolecules 2022; 12:biom12020251. [PMID: 35204753 PMCID: PMC8961566 DOI: 10.3390/biom12020251] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 02/04/2023] Open
Abstract
Hyaluronan (HA) comprises a fundamental component of the extracellular matrix and participates in a variety of biological processes. Half of the total amount of HA in the human body is present in the skin. HA exhibits a dynamic turnover; its half-life in the skin is less than one day. Nevertheless, the specific participants in the catabolism of HA in the skin have not yet been described in detail, despite the essential role of HA in cutaneous biology. A deeper knowledge of the processes involved will act to support the development of HA-based topical and implantable materials and enhance the understanding of the various related pathological cutaneous conditions. This study aimed to characterize the distribution and activity of hyaluronidases and the other proteins involved in the degradation of HA in healthy human full-thickness skin, the epidermis and the dermis. Hyaluronidase activity was detected for the first time in healthy human skin. The degradation of HA occurred in lysates at an acidic pH. HA gel zymography revealed a single band corresponding to approximately 50 kDa. This study provided the first comprehensive view of the distribution of canonic HA-degrading proteins (HYAL1 and HYAL2) in human skin employing IHF and IHC. Furthermore, contrary to previous assumptions TMEM2, a novel hyaluronidase, as well as CEMIP, a protein involved in HA degradation, were localized in the human epidermis, as well as in the dermis.
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24
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Gonzalez-Fernandez P, Rodríguez-Nogales C, Jordan O, Allémann E. Combination of mesenchymal stem cells and bioactive molecules in hydrogels for osteoarthritis treatment. Eur J Pharm Biopharm 2022; 172:41-52. [PMID: 35114357 DOI: 10.1016/j.ejpb.2022.01.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 12/13/2021] [Accepted: 01/17/2022] [Indexed: 12/15/2022]
Abstract
Osteoarthritis (OA) is a chronic and inflammatory disease with no effective regenerative treatments to date. The therapeutic potential of mesenchymal stem cells (MSCs) remains to be fully explored. Intra-articular injection of these cells promotes cartilage protection and regeneration by paracrine signaling and differentiation into chondrocytes. However, joints display a harsh avascular environment for these cells upon injection. This phenomenon prompted researchers to develop suitable injectable materials or systems for MSCs to enhance their function and survival. Among them, hydrogels can absorb a large amount of water and maintain their 3D structure but also allow incorporation of bioactive agents or small molecules in their matrix that maximize the action of MSCs. These materials possess advantageous cartilage-like features such as collagen or hyaluronic acid moieties that interact with MSC receptors, thereby promoting cell adhesion. This review provides an up-to-date overview of the progress and opportunities of MSCs entrapped into hydrogels, combined with bioactive/small molecules to improve the therapeutic effects in OA treatment.
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Affiliation(s)
- P Gonzalez-Fernandez
- School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, Rue Michel-Servet 1, 1211 Geneva 4, Switzerland
| | - C Rodríguez-Nogales
- School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, Rue Michel-Servet 1, 1211 Geneva 4, Switzerland
| | - O Jordan
- School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, Rue Michel-Servet 1, 1211 Geneva 4, Switzerland
| | - E Allémann
- School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, Rue Michel-Servet 1, 1211 Geneva 4, Switzerland.
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25
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Mohan N, Pavan SS, Jayakumar A, Rathinavelu S, Sivaprakasam S. Real-time metabolic heat-based specific growth rate soft sensor for monitoring and control of high molecular weight hyaluronic acid production by Streptococcus zooepidemicus. Appl Microbiol Biotechnol 2022; 106:1079-1095. [PMID: 35076739 DOI: 10.1007/s00253-022-11760-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 12/28/2021] [Accepted: 01/05/2022] [Indexed: 11/24/2022]
Abstract
This present investigation addressing the metabolic bottleneck in synthesis of high MW HA by Streptococcus zooepidemicus and illustrates the application of calorimetric fed-batch control of µ at a narrower range. Feedforward (FF) and feedback (FB) control was devised to improve the molecular weight (MW) of HA production by S. zooepidemicus. Metabolic heat measurements (Fermentation calorimetry) were modeled to decipher real-time specific growth rate, [Formula: see text] was looped into the PID circuit, envisaged to control [Formula: see text] to their desired setpoint values 0.05 [Formula: see text], 0.1 [Formula: see text], and 0.15 [Formula: see text] respectively. Similarly, a predetermined exponential feed rate irrespective of real-time µ was carried out in FF strategy. The developed FB strategy established a robust control capable of maintaining the specific growth rate (µ) close to the [Formula: see text] value with a minimal tracking error. Exponential feed rate carried out with a lowest [Formula: see text] of 0.05 [Formula: see text] showed an improved MW of HA to 2.98 MDa and 2.94 MDa for the FF and FB-based control strategies respectively. An optimal HA titer of 4.73 g/L was achieved in FF control strategy at [Formula: see text]. Superior control of µ at low [Formula: see text] value was observed to influence HA polymerization positively by yielding an improved MW and desired polydispersity index (PDI) of HA. PID control offers advantage over conventional fed-batch method to synthesize HA at an improved MW. Calorimetric signal-based µ control by PID negates adverse effects due to the secretion of other end products albeit maintaining regular metabolic activities. KEY POINTS: First report to compare HA productivities by feedforward and feedback control strategy. Inherent merits of regulating µ at narrower range were entailed. Relationship between operating µ and HA molecular weight was discussed.
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Affiliation(s)
- Naresh Mohan
- BioPAT Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Satya Sai Pavan
- BioPAT Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Anjali Jayakumar
- BioPAT Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Sivakumar Rathinavelu
- BioPAT Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Senthilkumar Sivaprakasam
- BioPAT Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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26
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Laurent A, Porcello A, Fernandez PG, Jeannerat A, Peneveyre C, Abdel-Sayed P, Scaletta C, Hirt-Burri N, Michetti M, de Buys Roessingh A, Raffoul W, Allémann E, Jordan O, Applegate LA. Combination of Hyaluronan and Lyophilized Progenitor Cell Derivatives: Stabilization of Functional Hydrogel Products for Therapeutic Management of Tendinous Tissue Disorders. Pharmaceutics 2021; 13:2196. [PMID: 34959477 PMCID: PMC8706504 DOI: 10.3390/pharmaceutics13122196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 01/10/2023] Open
Abstract
Cultured progenitor cells and derivatives have been used in various homologous applications of cutaneous and musculoskeletal regenerative medicine. Active pharmaceutical ingredients (API) in the form of progenitor cell derivatives such as lysates and lyophilizates were shown to retain function in controlled cellular models of wound repair. On the other hand, hyaluronan-based hydrogels are widely used as functional vehicles in therapeutic products for tendon tissue disorders. The aim of this study was the experimental characterization of formulations containing progenitor tenocyte-derived APIs and hyaluronan, for the assessment of ingredient compatibility and stability in view of eventual therapeutic applications in tendinopathies. Lyophilized APIs were determined to contain relatively low quantities of proteins and growth factors, while being physicochemically stable and possessing significant intrinsic antioxidant properties. Physical and rheological quantifications of the combination formulas were performed after hydrogen peroxide challenge, outlining significantly improved evolutive viscoelasticity values in accelerated degradation settings. Thus, potent effects of physicochemical protection or stability enhancement of hyaluronan by the incorporated APIs were observed. Finally, combination formulas were found to be easily injectable into ex vivo tendon tissues, confirming their compatibility with further translational clinical approaches. Overall, this study provides the technical bases for the development of progenitor tenocyte derivative-based injectable therapeutic products or devices, to potentially be applied in tendinous tissue disorders.
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Affiliation(s)
- Alexis Laurent
- Applied Research Department, LAM Biotechnologies SA, CH-1066 Épalinges, Switzerland; (A.J.); (C.P.)
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Lausanne, Switzerland; (P.A.-S.); (C.S.); (N.H.-B.); (M.M.); (L.A.A.)
- Manufacturing Department, TEC-PHARMA SA, CH-1038 Bercher, Switzerland
| | - Alexandre Porcello
- School of Pharmaceutical Sciences, University of Geneva, CH-1206 Geneva, Switzerland; (A.P.); (P.G.F.); (E.A.); (O.J.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CH-1206 Geneva, Switzerland
| | - Paula Gonzalez Fernandez
- School of Pharmaceutical Sciences, University of Geneva, CH-1206 Geneva, Switzerland; (A.P.); (P.G.F.); (E.A.); (O.J.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CH-1206 Geneva, Switzerland
| | - Annick Jeannerat
- Applied Research Department, LAM Biotechnologies SA, CH-1066 Épalinges, Switzerland; (A.J.); (C.P.)
| | - Cédric Peneveyre
- Applied Research Department, LAM Biotechnologies SA, CH-1066 Épalinges, Switzerland; (A.J.); (C.P.)
| | - Philippe Abdel-Sayed
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Lausanne, Switzerland; (P.A.-S.); (C.S.); (N.H.-B.); (M.M.); (L.A.A.)
- DLL Bioengineering, Discovery Learning Program, STI School of Engineering, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Corinne Scaletta
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Lausanne, Switzerland; (P.A.-S.); (C.S.); (N.H.-B.); (M.M.); (L.A.A.)
| | - Nathalie Hirt-Burri
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Lausanne, Switzerland; (P.A.-S.); (C.S.); (N.H.-B.); (M.M.); (L.A.A.)
| | - Murielle Michetti
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Lausanne, Switzerland; (P.A.-S.); (C.S.); (N.H.-B.); (M.M.); (L.A.A.)
| | - Anthony de Buys Roessingh
- Children and Adolescent Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
| | - Wassim Raffoul
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
- Plastic, Reconstructive, and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
| | - Eric Allémann
- School of Pharmaceutical Sciences, University of Geneva, CH-1206 Geneva, Switzerland; (A.P.); (P.G.F.); (E.A.); (O.J.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CH-1206 Geneva, Switzerland
| | - Olivier Jordan
- School of Pharmaceutical Sciences, University of Geneva, CH-1206 Geneva, Switzerland; (A.P.); (P.G.F.); (E.A.); (O.J.)
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CH-1206 Geneva, Switzerland
| | - Lee Ann Applegate
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Lausanne, Switzerland; (P.A.-S.); (C.S.); (N.H.-B.); (M.M.); (L.A.A.)
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
- Plastic, Reconstructive, and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, CH-8057 Zurich, Switzerland
- Oxford OSCAR Suzhou Center, Oxford University, Suzhou 215123, China
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27
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McCarthy A, Shah R, John JV, Brown D, Xie J. Understanding and utilizing textile-based electrostatic flocking for biomedical applications. APPLIED PHYSICS REVIEWS 2021; 8:041326. [PMID: 35003482 PMCID: PMC8715800 DOI: 10.1063/5.0070658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/23/2021] [Indexed: 05/10/2023]
Abstract
Electrostatic flocking immobilizes electrical charges to the surface of microfibers from a high voltage-connected electrode and utilizes Coulombic forces to propel microfibers toward an adhesive-coated substrate, leaving a forest of aligned fibers. This traditional textile engineering technique has been used to modify surfaces or to create standalone anisotropic structures. Notably, a small body of evidence validating the use of electrostatic flocking for biomedical applications has emerged over the past several years. Noting the growing interest in utilizing electrostatic flocking in biomedical research, we aim to provide an overview of electrostatic flocking, including the principle, setups, and general and biomedical considerations, and propose a variety of biomedical applications. We begin with an introduction to the development and general applications of electrostatic flocking. Additionally, we introduce and review some of the flocking physics and mathematical considerations. We then discuss how to select, synthesize, and tune the main components (flocking fibers, adhesives, substrates) of electrostatic flocking for biomedical applications. After reviewing the considerations necessary for applying flocking toward biomedical research, we introduce a variety of proposed use cases including bone and skin tissue engineering, wound healing and wound management, and specimen swabbing. Finally, we presented the industrial comments followed by conclusions and future directions. We hope this review article inspires a broad audience of biomedical, material, and physics researchers to apply electrostatic flocking technology to solve a variety of biomedical and materials science problems.
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Affiliation(s)
- Alec McCarthy
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 668198, USA
| | - Rajesh Shah
- Spectro Coating Corporation, Leominster, Massachusetts 01453, USA
| | - Johnson V. John
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 668198, USA
| | - Demi Brown
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 668198, USA
| | - Jingwei Xie
- Author to whom correspondence should be addressed:
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Pavicic T, Sattler G, Prager W, Fischer T, Gauglitz G, Hofmann M, Dersch H, Riaz S, Kerscher M. Safety of Cohesive Polydensified Matrix Cross-Linked Hyaluronic Acid Volumizing Gel in Temporal Hollows and Cheeks: A Prospective, Open-Label, Postmarket Study. Dermatol Surg 2021; 47:1359-1364. [PMID: 34417392 DOI: 10.1097/dss.0000000000003176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Facial aging is characterized by volume loss and progressive hollowing of temples and cheeks. Biodegradable filler materials are preferred over nonabsorbable materials; of these, hyaluronic acid (HA) fillers are the most often used because of their favorable effectiveness and safety profile. OBJECTIVE To confirm the safety and effectiveness of Cohesive Polydensified Matrix (CPM)-HA26 gel in the treatment of volume deficiency. METHODS Subjects received up to 2 treatments in the temples and/or cheeks. A blinded investigator assessed improvement according to the Merz Temple Volume Scale (MTVS) and Merz Cheek Fullness Assessment Scale (MCFAS). Subjects were followed for 48 weeks after the last treatment. RESULTS In total, 87 healthy subjects were enrolled. The proportion of subjects achieving at least a 1-grade improvement on MTVS and/or MCFAS was above 70% for each (MTVS: Weeks 4, 24, and 48 = 95.4%, 94.2%, and 77.0%; MCFAS: Weeks 4, 24, and 48 = 92.3%, 83.1%, and 71.8%). Based on MTVS and MCFAS scores at Visit 5, improvement remained visible at up to 48 weeks. No treatment-related serious AEs occurred. CONCLUSION CPM-HA26 demonstrated both a favorable safety and effectiveness profile, with improvement in facial volume evident for up to 48 weeks. It was well tolerated and had a positive, long-lasting effect.
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Affiliation(s)
- Tatjana Pavicic
- Privatpraxis für Dermatologie und Ästhetik Maximilianstr, Munich, Germany
| | | | - Welf Prager
- Prager & Partner Dermatologische Praxis, Hamburg, Germany
| | - Tanja Fischer
- Haut-und Lasercentrum Berlin-Potsdam, Praxis Potsdam, Potsdam, Germany
| | - Gerd Gauglitz
- Dermatologie München-Neuhausen, Leonrodstraße, Munich, Germany
| | | | - Hanna Dersch
- Merz Pharmaceuticals GmbH, Frankfurt am Main, Germany
| | - Shahbaz Riaz
- Merz North America, Inc., Raleigh, North Carolina
| | - Martina Kerscher
- Division of Biochemistry and Molecular Biology, Cosmetic Science, University of Hamburg, Hamburg, Germany
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29
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Pereira FM, Melo MN, Santos ÁKM, Oliveira KV, Diz FM, Ligabue RA, Morrone FB, Severino P, Fricks AT. Hyaluronic acid-coated chitosan nanoparticles as carrier for the enzyme/prodrug complex based on horseradish peroxidase/indole-3-acetic acid: Characterization and potential therapeutic for bladder cancer cells. Enzyme Microb Technol 2021; 150:109889. [PMID: 34489042 DOI: 10.1016/j.enzmictec.2021.109889] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/08/2021] [Accepted: 07/29/2021] [Indexed: 01/07/2023]
Abstract
Hybrid nanoparticles composed of different biopolymers for delivery of enzyme/prodrug systems are of interest for cancer therapy. Hyaluronic acid-coated chitosan nanoparticles (CS/HA NP) were prepared to encapsulate individually an enzyme/pro-drug complex based on horseradish peroxidase (HRP) and indole-3-acetic acid (IAA). CS/HA NP showed size around 158 nm and increase to 170 and 200 nm after IAA and HRP encapsulation, respectively. Nanoparticles showed positive zeta potential values (between +20.36 mV and +24.40 mV) and higher encapsulation efficiencies for both nanoparticles (up to 90 %) were obtained. Electron microscopy indicated the formation of spherical particles with smooth surface characteristic. Physicochemical and thermal characterizations suggest the encapsulation of HRP and IAA. Kinetic parameters for encapsulated HRP were similar to those of the free enzyme. IAA-CS/HA NP showed a bimodal release profile of IAA with a high initial release (72 %) followed by a slow-release pattern. The combination of HRP-CS/HA NP and IAA- CS/HA NP reduced by 88 % the cell viability of human bladder carcinoma cell line (T24) in the concentrations 0.5 mM of pro-drug and 1.2 μg/mL of the enzyme after 24 h.
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Affiliation(s)
- Fernanda Menezes Pereira
- Tiradentes University, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil; Institute of Technology and Research, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil
| | - Micael Nunes Melo
- Tiradentes University, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil; Institute of Technology and Research, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil
| | - Átali Kayane Mendes Santos
- Tiradentes University, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil; Institute of Technology and Research, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil
| | - Karony Vieira Oliveira
- Tiradentes University, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil; Institute of Technology and Research, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil
| | - Fernando Mendonça Diz
- School of Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Av. Ipiranga 6681, 90619-900, Porto Alegre, RS, Brazil
| | - Rosane Angélica Ligabue
- School of Technology, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Av. Ipiranga 6681, 90619-900, Porto Alegre, RS, Brazil
| | - Fernanda Bueno Morrone
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul - PUCRS, Av. Ipiranga 6681, 90619-900, Porto Alegre, RS, Brazil
| | - Patrícia Severino
- Tiradentes University, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil; Institute of Technology and Research, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil
| | - Alini Tinoco Fricks
- Tiradentes University, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil; Institute of Technology and Research, Av. Murilo Dantas 300, 49032-490, Aracaju, SE, Brazil.
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30
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Wang W, Zhang X, Li Z, Pan D, Zhu H, Gu Z, Chen J, Zhang H, Gong Q, Luo K. Dendronized hyaluronic acid-docetaxel conjugate as a stimuli-responsive nano-agent for breast cancer therapy. Carbohydr Polym 2021; 267:118160. [PMID: 34119134 DOI: 10.1016/j.carbpol.2021.118160] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/04/2021] [Accepted: 04/14/2021] [Indexed: 02/06/2023]
Abstract
To achieve target delivery of anti-tumor drugs with great biocompatibility into tumor tissues, a stimuli-responsive dendronized hyaluronic acid (HA)-docetaxel conjugate (HA-DTX-Dendron, HADD) was designed and prepared. The incorporation of HA in HADD improved the delivery of DTX to tumor cells with rich CD44 receptors. Enhanced biocompatibility and therapeutic outcomes were achieved using glyodendrons-modified HA and tumor microenvironment-responsive linkers in HADD. The glycodendron was connected with HA via GSH-responsive disulfide bonds, and the drug DTX was linked to the carrier via a cathepsin B-responsive tetrapeptide GFLG. This design resulted in self-assembly nanostructures for facilitating uptake of HADD by tumor cells and rapid release of DTX to exert its therapeutic effect. Compared to free DTX, HADD showed much higher tumor growth inhibition in the MDA-MB-231 tumor-bearing mice model (up to 99.71%), and no toxicity was observed. Therefore, HADD could be employed as an efficacious nano-agent for treating triple negative breast cancer (TNBC).
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Affiliation(s)
- Wenjia Wang
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaoqin Zhang
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China; College of Preclinical Medicine, Southwest Medical University, Luzhou 646000, China
| | - Zhiqian Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dayi Pan
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hongyan Zhu
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhongwei Gu
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jie Chen
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, CA 91711, USA
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China; Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu 610041, China.
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, National Clinical Research Center for Geriatrics, Department of Breast Surgery, Clinical Research Center for Breast, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China.
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Alonci G, Mocchi R, Sommatis S, Capillo MC, Liga E, Janowska A, Nachbaur L, Zerbinati N. Physico-Chemical Characterization and In Vitro Biological Evaluation of a Bionic Hydrogel Based on Hyaluronic Acid and l-Lysine for Medical Applications. Pharmaceutics 2021; 13:pharmaceutics13081194. [PMID: 34452157 PMCID: PMC8400252 DOI: 10.3390/pharmaceutics13081194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 11/22/2022] Open
Abstract
Hyaluronic acid (HA) is an endogenous polysaccharide, whose hydrogels have been used in medical applications for decades. Here, we present a technology platform for stabilizing HA with a biocrosslinker, the amino acid l-Lysine, to manufacture bionic hydrogels for regenerative medicine. We synthetized bionic hydrogels with tailored composition with respect to HA concentration and degree of stabilization depending on the envisaged medical use. The structure of the hydrogels was assessed by microscopy and rheology, and the resorption behavior through enzymatic degradation with hyaluronidase. The biological compatibility was evaluated in vitro with human dermal fibroblast cell lines. HA bionic hydrogels stabilized with lysine show a 3D network structure, with a rheological profile that mimics biological matrixes, as a harmless biodegradable substrate for cell proliferation and regeneration and a promising candidate for wound healing and other medical applications.
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Affiliation(s)
- Giuseppe Alonci
- Qventis GmbH, 16761 Hennigsdorf, Germany;
- Matex Lab Switzerland SA, 1228 Plan-les-Ouates, Switzerland
| | - Roberto Mocchi
- UB—CARE S.r.l.-Spin-off University of Pavia, 27100 Pavia, Italy; (R.M.); (S.S.); (M.C.C.); (E.L.)
| | - Sabrina Sommatis
- UB—CARE S.r.l.-Spin-off University of Pavia, 27100 Pavia, Italy; (R.M.); (S.S.); (M.C.C.); (E.L.)
| | - Maria Chiara Capillo
- UB—CARE S.r.l.-Spin-off University of Pavia, 27100 Pavia, Italy; (R.M.); (S.S.); (M.C.C.); (E.L.)
| | - Elsa Liga
- UB—CARE S.r.l.-Spin-off University of Pavia, 27100 Pavia, Italy; (R.M.); (S.S.); (M.C.C.); (E.L.)
| | - Agata Janowska
- Department of Dermatology, University of Pisa, 56121 Pisa, Italy;
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy
| | - Lidia Nachbaur
- Qventis GmbH, 16761 Hennigsdorf, Germany;
- Correspondence: (L.N.); (N.Z.)
| | - Nicola Zerbinati
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy
- Correspondence: (L.N.); (N.Z.)
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32
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Gordián-Vélez WJ, Chouhan D, España RA, Chen HI, Burdick JA, Duda JE, Cullen DK. Restoring lost nigrostriatal fibers in Parkinson's disease based on clinically-inspired design criteria. Brain Res Bull 2021; 175:168-185. [PMID: 34332016 DOI: 10.1016/j.brainresbull.2021.07.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/13/2021] [Accepted: 07/20/2021] [Indexed: 12/13/2022]
Abstract
Parkinson's disease is a neurodegenerative disease affecting around 10 million people worldwide. The death of dopaminergic neurons in the substantia nigra and the axonal fibers that constitute the nigrostriatal pathway leads to a loss of dopamine in the striatum that causes the motor symptoms of this disease. Traditional treatments have focused on reducing symptoms, while therapies with human fetal or stem cell-derived neurons have centered on implanting these cells in the striatum to restore its innervation. An alternative approach is pathway reconstruction, which aims to rebuild the entire structure of neurons and axonal fibers of the nigrostriatal pathway in a way that matches its anatomy and physiology. This type of repair could be more capable of reestablishing the signaling mechanisms that ensure proper dopamine release in the striatum and regulation of other motor circuit regions in the brain. In this manuscript, we conduct a review of the literature related to pathway reconstruction as a treatment for Parkinson's disease, delve into the limitations of these studies, and propose the requisite design criteria to achieve this goal at a human scale. We then present our tissue engineering-based platform to fabricate hydrogel-encased dopaminergic axon tracts in vitro for later implantation into the brain to replace and reconstruct the pathway. These tissue-engineered nigrostriatal pathways (TE-NSPs) can be characterized and optimized for cell number and phenotype, axon growth lengths and rates, and the capacity for synaptic connectivity and dopamine release. We then show original data of advances in creating these constructs matching clinical design criteria using human iPSC-derived dopaminergic neurons and a hyaluronic acid hydrogel. We conclude with a discussion of future steps that are needed to further optimize human-scale TE-NSPs and translate them into clinical products.
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Affiliation(s)
- Wisberty J Gordián-Vélez
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States; Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - Dimple Chouhan
- Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - Rodrigo A España
- Department of Neurobiology & Anatomy, College of Medicine, Drexel University, Philadelphia, PA, United States
| | - H Isaac Chen
- Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - Jason A Burdick
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States
| | - John E Duda
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States
| | - D Kacy Cullen
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States; Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael Crescenz Veterans Affairs Medical Center, Philadelphia, PA, United States.
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Lin H, Zhou K, Li D, Hong H, Xie Y, Gong L, Shen Y, Zhou Z, Shi J, Wu Z. Dinitrophenol-Hyaluronan Conjugates as Multivalent Antibody-Recruiting Glycopolymers for Targeted Cancer Immunotherapy. ChemMedChem 2021; 16:2960-2968. [PMID: 34235861 DOI: 10.1002/cmdc.202100313] [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: 05/06/2021] [Revised: 06/28/2021] [Indexed: 11/11/2022]
Abstract
Multivalent antibody-recruiting glycopolymers (MARGs) composed of hyaluronic acid (HA) grafted with multiple copies of dinitrophenol (DNP) were developed for targeted cancer immunotherapy. Structure-activity studies demonstrated that the MARGs were able to specifically recognize CD44-positive cancer cells and displayed remarkable antibody-recruiting capacities and tumor cell killing activities dependent on the introduced multivalent effect and the length of PEG linker. One of the MARGs, HA-[PEG3 -DNP]8 , showed the best capacity for clustering anti-DNP antibodies onto CD44-positive cancer cells and displayed potent in vitro anti-cancer activity by triggering complement dependent cytotoxicity (CDC) and antibody-dependent cell-mediated cytotoxicity (ADCC). Moreover, we found that HA-[PEG3 -DNP]8 significantly inhibited the xenograft tumor growth of Babl/c nude mice bearing triple negative breast cancer cells, while it did not cause detectable histological cytotoxicity. Given the easy access of this type of natural glycopolymer and the practical synthesis approach, these MARGs provide promising immunotherapeutics for cancer immunotherapy.
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Affiliation(s)
- Han Lin
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Kun Zhou
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Dan Li
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Haofei Hong
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Yuntian Xie
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Liang Gong
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Yu Shen
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Zhifang Zhou
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Jie Shi
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Zhimeng Wu
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
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Ryu HJ, Kwak SS, Rhee CH, Yang GH, Yun HY, Kang WH. Model-Based Prediction to Evaluate Residence Time of Hyaluronic Acid Based Dermal Fillers. Pharmaceutics 2021; 13:pharmaceutics13020133. [PMID: 33494145 PMCID: PMC7909806 DOI: 10.3390/pharmaceutics13020133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 11/16/2022] Open
Abstract
Dermal fillers are gel-type substances for nonsurgical medical-device use to achieve facial rejuvenation. Currently, the most widely used skin fillers are hyaluronic-acid-based dermal fillers. This study aimed to explain the change in the volume of injected dermal fillers by developing a mathematical kinetic model for various dermal fillers. The kinetics of the injected fillers were separated by a biphasic phenomenon. We attributed an increase in filler volume to the hydration of hyaluronic acid molecules and injection-site reaction and a decrease in volume to enzyme-mediated degradation. To explain these in vivo characteristics of dermal fillers, we proposed a two-compartment model, divided into a depot compartment (where the filler was injected) and a subcutaneous compartment (an observation compartment where the fillers swell and degrade), assuming that the swelling and degradation occurred in accordance with the swelling and degradation rate constants, respectively. The model was developed using five hyaluronic-acid-based dermal fillers and NONMEM. We determined that the rate-limiting step for the complete degradation of the dermal fillers in vivo was the swelling phase, as described by the swelling rate constant (Kswell). This study could enable scientists developing novel dermal fillers to predict the in vivo behavior of fillers.
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Affiliation(s)
- Hyo-jeong Ryu
- Gwangkyo R & D Center, Medytox Inc., Suwon 16506, Korea; (H.-j.R.); (S.-s.K.); (G.-h.Y.)
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Seong-sung Kwak
- Gwangkyo R & D Center, Medytox Inc., Suwon 16506, Korea; (H.-j.R.); (S.-s.K.); (G.-h.Y.)
| | | | - Gi-hyeok Yang
- Gwangkyo R & D Center, Medytox Inc., Suwon 16506, Korea; (H.-j.R.); (S.-s.K.); (G.-h.Y.)
- Osong R & D Center, Medytox Inc., Cheongju 28126, Korea;
| | - Hwi-yeol Yun
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
- Correspondence: (H.-y.Y.); (W.-h.K.); Tel.: +82-42-821-5941 (H.-y.Y.); +82-31-8065-8243 (W.-h.K.)
| | - Won-ho Kang
- Gwangkyo R & D Center, Medytox Inc., Suwon 16506, Korea; (H.-j.R.); (S.-s.K.); (G.-h.Y.)
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
- Correspondence: (H.-y.Y.); (W.-h.K.); Tel.: +82-42-821-5941 (H.-y.Y.); +82-31-8065-8243 (W.-h.K.)
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Barrows CM, Wu D, Farach-Carson MC, Young S. Building a Functional Salivary Gland for Cell-Based Therapy: More than Secretory Epithelial Acini. Tissue Eng Part A 2020; 26:1332-1348. [PMID: 32829674 PMCID: PMC7759264 DOI: 10.1089/ten.tea.2020.0184] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/20/2020] [Indexed: 11/13/2022] Open
Abstract
A few treatment options exist for patients experiencing xerostomia due to hyposalivation that occurs as a result of disease or injury to the gland. An opportunity for a permanent solution lies in the field of salivary gland replacement through tissue engineering. Recent success emboldens in the vision of producing a tissue-engineered salivary gland composed of differentiated salivary epithelial cells that are able to differentiate to form functional units that produce and deliver saliva to the oral cavity. This vision is augmented by advances in understanding cellular mechanisms that guide branching morphogenesis and salivary epithelial cell polarization in both acinar and ductal structures. Growth factors and other guidance cues introduced into engineered constructs help to develop a more complex glandular structure that seeks to mimic native salivary gland tissue. This review describes the separate epithelial phenotypes that make up the gland, and it describes their relationship with the other cell types such as nerve and vasculature that surround them. The review is organized around the links between the native components that form and contribute to various aspects of salivary gland development, structure, and function and how this information can drive the design of functional tissue-engineered constructs. In addition, we discuss the attributes of various biomaterials commonly used to drive function and form in engineered constructs. The review also contains a current description of the state-of-the-art of the field, including successes and challenges in creating materials for preclinical testing in animal models. The ability to integrate biomolecular cues in combination with a range of materials opens the door to the design of increasingly complex salivary gland structures that, once accomplished, can lead to breakthroughs in other fields of tissue engineering of epithelial-based exocrine glands or oral tissues.
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Affiliation(s)
- Caitlynn M.L. Barrows
- Department of Diagnostic and Biomedical Sciences and The University of Texas Health Science Center at Houston, School of Dentistry, Houston, Texas, USA
- Department of Oral and Maxillofacial Surgery, The University of Texas Health Science Center at Houston, School of Dentistry, Houston, Texas, USA
| | - Danielle Wu
- Department of Diagnostic and Biomedical Sciences and The University of Texas Health Science Center at Houston, School of Dentistry, Houston, Texas, USA
| | - Mary C. Farach-Carson
- Department of Diagnostic and Biomedical Sciences and The University of Texas Health Science Center at Houston, School of Dentistry, Houston, Texas, USA
- Department of Biosciences and Rice University, Houston, Texas, USA
- Department of Bioengineering, Rice University, Houston, Texas, USA
| | - Simon Young
- Department of Oral and Maxillofacial Surgery, The University of Texas Health Science Center at Houston, School of Dentistry, Houston, Texas, USA
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Sahiner N, Suner SS, Kurt SB, Can M, Ayyala RS. HA particles as resourceful cancer, steroidal and antibiotic drug delivery device with sustainable and multiple drug release capability. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2020. [DOI: 10.1080/10601325.2020.1832518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nurettin Sahiner
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida Eye Institute, Tampa, Florida, USA
- Chemistry Department, Faculty of Science & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Selin S. Suner
- Chemistry Department, Faculty of Science & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Saliha B. Kurt
- Chemistry Department, Faculty of Science & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Mehmet Can
- Chemistry Department, Faculty of Science & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Ramesh S. Ayyala
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida Eye Institute, Tampa, Florida, USA
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Petta D, D'Amora U, Ambrosio L, Grijpma DW, Eglin D, D'Este M. Hyaluronic acid as a bioink for extrusion-based 3D printing. Biofabrication 2020; 12:032001. [PMID: 32259809 DOI: 10.1088/1758-5090/ab8752] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Biofabrication is enriching the tissue engineering field with new ways of producing structurally organized complex tissues. Among the numerous bioinks under investigation, hyaluronic acid (HA) and its derivatives stand out for their biological relevance, cytocompatibility, shear-thinning properties, and potential to fine-tune the desired properties with chemical modification. In this paper, we review the recent advances on bioinks containing HA. The available literature is presented based on subjects including the rheological properties in connection with printability, the chemical strategies for endowing HA with the desired properties, the clinical application, the most advanced preclinical studies, the advantages and limitations in comparison with similar biopolymer-based bioinks, and future perspectives.
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Affiliation(s)
- D Petta
- AO Research Institute Davos, Davos Platz, Switzerland. Department of Biomaterials Science and Technology, University of Twente, Enschede, The Netherlands
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Takasugi M, Firsanov D, Tombline G, Ning H, Ablaeva J, Seluanov A, Gorbunova V. Naked mole-rat very-high-molecular-mass hyaluronan exhibits superior cytoprotective properties. Nat Commun 2020; 11:2376. [PMID: 32398747 PMCID: PMC7217962 DOI: 10.1038/s41467-020-16050-w] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 04/10/2020] [Indexed: 12/14/2022] Open
Abstract
Naked mole-rat (NMR), the longest-living rodent, produces very-high-molecular-mass hyaluronan (vHMM-HA), compared to other mammalian species. However, it is unclear if exceptional polymer length of vHMM-HA is important for longevity. Here, we show that vHMM-HA (>6.1 MDa) has superior cytoprotective properties compared to the shorter HMM-HA. It protects not only NMR cells, but also mouse and human cells from stress-induced cell-cycle arrest and cell death in a polymer length-dependent manner. The cytoprotective effect is dependent on the major HA-receptor, CD44. We find that vHMM-HA suppresses CD44 protein-protein interactions, whereas HMM-HA promotes them. As a result, vHMM-HA and HMM-HA induce opposing effects on the expression of CD44-dependent genes, which are associated with the p53 pathway. Concomitantly, vHMM-HA partially attenuates p53 and protects cells from stress in a p53-dependent manner. Our results implicate vHMM-HA in anti-aging mechanisms and suggest the potential applications of vHMM-HA for enhancing cellular stress resistance.
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Affiliation(s)
- Masaki Takasugi
- Department of Biology, University of Rochester, Rochester, NY, 14627, USA
| | - Denis Firsanov
- Department of Biology, University of Rochester, Rochester, NY, 14627, USA
| | - Gregory Tombline
- Department of Biology, University of Rochester, Rochester, NY, 14627, USA
| | - Hanbing Ning
- Department of Digestive Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Zhengzhou, Henan, 450052, People's Republic of China
| | - Julia Ablaeva
- Department of Biology, University of Rochester, Rochester, NY, 14627, USA
| | - Andrei Seluanov
- Department of Biology, University of Rochester, Rochester, NY, 14627, USA.
| | - Vera Gorbunova
- Department of Biology, University of Rochester, Rochester, NY, 14627, USA.
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Vasvani S, Kulkarni P, Rawtani D. Hyaluronic acid: A review on its biology, aspects of drug delivery, route of administrations and a special emphasis on its approved marketed products and recent clinical studies. Int J Biol Macromol 2020; 151:1012-1029. [DOI: 10.1016/j.ijbiomac.2019.11.066] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 10/25/2019] [Accepted: 11/07/2019] [Indexed: 12/20/2022]
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Graça MFP, Miguel SP, Cabral CSD, Correia IJ. Hyaluronic acid-Based wound dressings: A review. Carbohydr Polym 2020; 241:116364. [PMID: 32507198 DOI: 10.1016/j.carbpol.2020.116364] [Citation(s) in RCA: 341] [Impact Index Per Article: 85.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/09/2020] [Accepted: 04/22/2020] [Indexed: 01/09/2023]
Abstract
Hyaluronic acid (HA), a non-sulfated glycosaminoglycan (GAG), is a major component of skin extracellular matrix (ECM) and it is involved in the inflammatory response, angiogenesis, and tissue regeneration process. Due to the intrinsic properties of HA (such as biocompatibility, biodegradability and hydrophilic character), it has been used to produce different wound dressings, namely sponges, films, hydrogels, and electrospun membranes. Herein, an overview of the different HA-based wound dressings that have been produced so far is provided as well as the future directions regarding the strategies aimed to improve the mechanical stability of HA-based wound dressings, along with the incorporation of biomolecules intended to ameliorate their biological performance during the healing process.
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Affiliation(s)
- Mariana F P Graça
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Sónia P Miguel
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal; CPIRN-IPG- Centro de Potencial e Inovação de Recursos Naturais- Instituto Politécnico da Guarda, Av. Dr. Francisco de Sá Carneiro, 6300-559, Guarda, Portugal
| | - Cátia S D Cabral
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal; CIEPQPF - Departamento de Engenharia Química, Universidade de Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal.
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Monaco G, El Haj AJ, Alini M, Stoddart MJ. Sodium Hyaluronate Supplemented Culture Media as a New hMSC Chondrogenic Differentiation Media-Model for in vitro/ex vivo Screening of Potential Cartilage Repair Therapies. Front Bioeng Biotechnol 2020; 8:243. [PMID: 32296689 PMCID: PMC7136394 DOI: 10.3389/fbioe.2020.00243] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 03/09/2020] [Indexed: 12/19/2022] Open
Abstract
Surgical strategies to treat articular cartilage injury such as microfracture, expose human bone marrow stem cells (hMSCs) to synovial fluid and its components. High molecular weight hyaluronan (hMwt HA) is one of the most abundant bioactive macromolecules of healthy synovial fluid (hSF) and it plays an important role in the protection of opposing articular cartilage surfaces within the synovial joint. Although hMwt HA has been extensively used to attempt the engineering of the cartilage tissue, its effect as media supplement has not been established. Indeed, current media are often simple in their composition and doesn't recapitulate the rheological and biological features of hSF. In addition, critical in vivo molecules that can potentially change the chondrogenic behavior of hBMSCs to make the in vitro results more predictive of the real in vivo outcome, are lacking. In order to be one step closer to the in vivo physiology of hSF, a new culture media supplemented with physiological level of hMwt HA was developed and the effect of the hMwt HA on the chondrogenesis of hMSCs that would be present in a traumatic defect after marrow stimulation techniques, was investigated. hBMSC-seeded fibrin-polyurethane constructs were cultured in a serum free chondropermissive control medium (HA- TGFβ-). This medium was further supplemented with 10 ng/mL TGFβ1 (HA- TGFβ+) or 2 mg/ml hMwt HA 1.8 MDa (HA+ TGFβ-) or both (HA+ TGFβ+). Alternatively, 1 MDa HA was mixed with the fibrin at 0.2 mg/ml (HASc TGFβ+). The effect of hMwt HA on hMSC differentiation was investigated at the gene expression level by RT-qPCR and total DNA, sulfated glycosaminoglycans and Safranin O staining were evaluated. Addition of hMwt HA to the culture media, significantly increased the synthesis of sulfated glycosaminoglycans, especially in the early days of chondrogenesis, and reduced the upregulation of the hypertrophic cartilage marker collagen X. hMwt HA added inside the fibrin gel(HASc TGF+) led to the best matrix deposition. hMwt HA can be one key medium component in a more reliable in vitro/ex vivo system to reduce in vitro artifacts, enable more accurate pre-screening of potential cartilage repair therapies and reduce the need for animal studies.
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Affiliation(s)
- Graziana Monaco
- AO Research Institute Davos, Davos, Switzerland
- School of Pharmacy and Bioengineering, Faculty of Medicine and Health Sciences, Keele University, Guy Hilton Research Centre, Thornburrow Drive, Stoke-on-Trent, United Kingdom
| | - Alicia Jennifer El Haj
- Healthcare Technology Institute, Institute of Translational Medicine, University of Birmingham, Birmingham, United Kingdom
| | - Mauro Alini
- AO Research Institute Davos, Davos, Switzerland
| | - Martin James Stoddart
- AO Research Institute Davos, Davos, Switzerland
- School of Pharmacy and Bioengineering, Faculty of Medicine and Health Sciences, Keele University, Guy Hilton Research Centre, Thornburrow Drive, Stoke-on-Trent, United Kingdom
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Mohan N, Tadi SRR, Pavan SS, Sivaprakasam S. Deciphering the role of dissolved oxygen and N-acetyl glucosamine in governing higher molecular weight hyaluronic acid synthesis in Streptococcus zooepidemicus cell factory. Appl Microbiol Biotechnol 2020; 104:3349-3365. [PMID: 32078020 DOI: 10.1007/s00253-020-10445-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 01/27/2020] [Accepted: 02/06/2020] [Indexed: 01/01/2023]
Abstract
The present study is focused on systematic process and kinetic investigation of hyaluronic acid (HA) production strategy unraveling the role of dissolved oxygen (DO) and N-acetyl glucosamine (GlcNAc) towards the enhancement of HA titer and its molecular weight. Maintaining excess DO levels (10-40% DO) through DO-stat control and the substitution of GlcNAc at a range (5-20 g/L) with glucose (Glc) critically influenced HA production. DO-stat control strategy yielded a promising HA titer (2.4 g/L) at 40% DO concentration. Controlling DO level at 20% (DO-stat) was observed to be optimum resulting in a significant HA production (2.1 g/L) and its molecular weight ranging 0.98-1.45 MDa with a consistent polydispersity index (PDI) (1.57-1.69). Substitution of GlcNAc with Glc at different proportions explicitly addressed the metabolic trade-off between HA titer and its molecular weight. GlcNAc substitution positively influenced the molecular weight of HA. The highest HA molecular weight (2.53 MDa) of two-fold increase compared with glucose as sole carbon substrate and narrower PDI (1.35 ± 0.18) was achieved for the 10:20 (Glc:GlcNAc) proportion. A novice attempt on modeling the uptake of dual substrates (Glc and GlcNAc) by Streptococcus zooepidemicus for HA production was successfully accomplished using double Andrew's growth model and the kinetic parameters were estimated reliably.
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Affiliation(s)
- Naresh Mohan
- BioPAT Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Subbi Rami Reddy Tadi
- BioPAT Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Satya Sai Pavan
- BioPAT Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Senthilkumar Sivaprakasam
- BioPAT Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India.
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Abdel-Mottaleb MM, Abd-Allah H, El-Gogary RI, Nasr M. Versatile hyaluronic acid nanoparticles for improved drug delivery. DRUG DELIVERY ASPECTS 2020:1-18. [DOI: 10.1016/b978-0-12-821222-6.00001-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Huerta-Ángeles G, Brandejsová M, Kopecká K, Ondreáš F, Medek T, Židek O, Kulhánek J, Vagnerová H, Velebný V. Synthesis and Physicochemical Characterization of Undecylenic Acid Grafted to Hyaluronan for Encapsulation of Antioxidants and Chemical Crosslinking. Polymers (Basel) 2019; 12:E35. [PMID: 31878337 PMCID: PMC7023664 DOI: 10.3390/polym12010035] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/05/2019] [Accepted: 12/21/2019] [Indexed: 12/31/2022] Open
Abstract
In this work, a new amphiphilic derivative made of 10-undecylenic acid grafted to hyaluronan was prepared by mixed anhydrides. The reaction conditions were optimized, and the effect of the molecular weight (Mw), reaction time, and the molar ratio of reagents was explored. Using this methodology, a degree of substitution up to 50% can be obtained. The viscosity of the conjugate can be controlled by varying the substitution degree. The physicochemical characterization of the modified hyaluronan was performed by infrared spectroscopy, Nuclear Magnetic Resonance, Size-Exclusion Chromatography combined with Multiangle Laser Light Scattering (SEC-MALLS), and rheology. The low proton motility and self-aggregation of the amphiphilic conjugate produced overestimation of the degree of substitution. Thus, a novel method using proton NMR was developed. Encapsulation of model hydrophobic guest molecules, coenzyme Q10, curcumin, and α-tocopherol into the micellar core was also investigated by solvent evaporation. HA-UDA amphiphiles were also shown to self-assemble into spherical nanostructures (about 300 nm) in water as established by dynamic light scattering. Furthermore, HA-UDA was crosslinked via radical polymerization mediated by ammonium persulphate (APS/TEMED). The cross-linking was also tested by photo-polymerization catalyzed by Irgacure 2959. The presence of the hydrophobic moiety decreases the swelling degree of the prepared hydrogels compared to methacrylated-HA. Here, we report a novel hybrid hyaluronan (HA) hydrogel system of physically encapsulated active compounds and chemical crosslinking for potential applications in drug delivery.
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Monticelli D, Martina V, Mocchi R, Rauso R, Zerbinati U, Cipolla G, Zerbinati N. Chemical Characterization of Hydrogels Crosslinked with Polyethylene Glycol for Soft Tissue Augmentation. Open Access Maced J Med Sci 2019; 7:1077-1081. [PMID: 31049084 PMCID: PMC6490493 DOI: 10.3889/oamjms.2019.279] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/04/2019] [Accepted: 04/05/2019] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Hyaluronic acid (HA) based hydrogels for esthetic applications found widespread use. HA should be crosslinked for this application to achieve the correct viscoelastic properties and avoid fast degradation by the hyaluronidase enzyme naturally present in the skin: these properties are controlled by the amount of crosslinker and the fraction that is effectively crosslinked (i.e. that binds two HA chains). AIM Crosslinking by polyethylene glycol diglycidyl ether (PEGDE) has been more recently introduced and showed attractive features in terms of viscoelastic properties and reduced biodegradation. Aim of this paper is to define a method for the determination of the crosslinking properties of these recently introduced fillers, method that is lacking at the moment. MATERIAL AND METHOD The percentage of crosslinker and the fraction that is effectively crosslinked were determined by proton Nuclear Magnetic Resonance (1H NMR) and by 13C NMR, respectively. The filler were preliminarily washed with acetonitrile to remove residual PEG and then digested by hyaluronidase to obtain a sample that can be analysed by NMR. RESULTS The crosslinking parameters were determined in four samples of NEAUVIA PEG-crosslinked dermal fillers (produced by MatexLab S.p.A., Italy). The percentage of crosslinker was between 2.8% and 6.2% of HA, whereas the effective crosslinker ratios were between 0.07 and 0.16 (ratio between the moles of effectively crosslinked PEG and total moles of PEG). Moreover, a digestion procedure alternative to enzymatic digestion, based on acidic hydrolysis, was successfully tested for the determination of crosslinker percentage. CONCLUSIONS The proposed method successfully determined the two crosslinking parameters in PEG-crosslinked dermal fillers. The estimated percentage of crosslinker is similar to previously reported data for other crosslinkers, whereas the effective crosslinker ratio is lower for PEG crosslinked hydrogels.
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Affiliation(s)
- Damiano Monticelli
- University of Insubria, Department of Science and High Technology, Como, Italy
| | - Virginia Martina
- MatexLab S.p.a., Department of Research and Development, Brindisi, Italy
| | - Roberto Mocchi
- UB-CARE S.r.l. Spin-off University of Pavia, Pavia, Italy
| | - Raffaele Rauso
- University of Foggia, Department of Plastic Reconstructive Surgery, Foggia, Italy
| | - Umberto Zerbinati
- Centro Medico Polispecialistico, Dermatology Department, Pavia, Italy
| | - Giovanna Cipolla
- Centro Medico Polispecialistico, Dermatology Department, Pavia, Italy
| | - Nicola Zerbinati
- University of Insubria, Department of Medicine and Surgery, School of Medicine, Varese, Italy
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