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Monika P, Chandraprabha MN, Radhakrishnan V, Somayaji P, Sabu L. Therapeutic potential of silkworm sericin in wound healing applications. Wound Repair Regen 2024. [PMID: 39225112 DOI: 10.1111/wrr.13216] [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: 06/07/2024] [Revised: 07/30/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024]
Abstract
Chronic wounds are characterised by an imbalance between pro and anti-inflammatory signals, which result in permanent inflammation and delayed re-epithelialization, consequently hindering wound healing. They are associated with bacterial infections, tissue hypoxia, local ischemia, reduced vascularization, and MMP-9 upregulation. The global prevalence of chronic wounds has been estimated at 40 million in the adult population, with an alarming annual growth rate of 6.6%, making it an increasingly significant clinical problem. Sericin is a natural hydrophilic protein obtained from the silkworm cocoon. Due to its biocompatibility, biodegradability, non-immunogenicity, and oxidation resistance, coupled with its excellent affinity for target biomolecules, it holds great potential in wound healing applications. The silk industry discards 50,000 tonnes of sericin annually, making it a readily available material. Sericin increases cell union sites and promotes cell proliferation in fibroblasts and keratinocytes, thanks to its cytoprotective and mitogenic effects. Additionally, it stimulates macrophages to release more therapeutic cytokines, thus improving vascularization. This review focuses on the biological properties of sericin that contribute towards enhanced wound healing process and its mechanism of interaction with important biological targets involved in wound healing. Emphasis is placed on diverse wound dressing products that are sericin based and the utilisation of nanotechnology to design sericin nanoparticles that aid in chronic wound management.
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Affiliation(s)
- Prakash Monika
- Department of Biotechnology, M. S. Ramaiah Institute of Technology, Bengaluru, India
| | - M N Chandraprabha
- Department of Biotechnology, M. S. Ramaiah Institute of Technology, Bengaluru, India
| | - Vivek Radhakrishnan
- Department of Biotechnology, M. S. Ramaiah Institute of Technology, Bengaluru, India
| | - Prathik Somayaji
- Department of Biotechnology, M. S. Ramaiah Institute of Technology, Bengaluru, India
| | - Leah Sabu
- Department of Biotechnology, M. S. Ramaiah Institute of Technology, Bengaluru, India
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2
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Brennan MR, Keast DH, Bain K, Bain M, Lorentsen B, Ayoub N. Defining wound bed conformability: a new testing methodology to assess the relative swelling rise of foam dressings. J Wound Care 2024; 33:312-323. [PMID: 38683778 DOI: 10.12968/jowc.2024.33.5.312] [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] [Indexed: 05/02/2024]
Abstract
OBJECTIVE Using a dressing that expands and conforms to the wound bed upon exudate absorption is one of the best ways to promote wound healing. While many products claim wound bed conformability, no externally replicated or verified test methodology had been developed to quantify a wound dressing's ability to conform to the wound bed. The Relative Swelling Rise (RSR) test methodology was developed to measure the relative swelling rise of foam dressings upon fluid absorption, and offers a quantifiable and easily replicated method to measure wound bed conformability. METHOD The RSR test method was developed, validated and reliability tested by Coloplast A/S, Denmark. External replication was provided by ALS Odense, Denmark (previously DB Lab). Circular fences provide a fixed diameter to apply and contain the fluid and prevent horizontal spreading in the test set-up. The swelling height is quantified relative to the fence's inner diameter, i.e., the ratio alpha (α), and allows evaluation of a material's ability to conform to the wound bed. RESULTS Biatain Silicone foam products (n=3, Coloplast A/S, Denmark) were tested, all afforded an average α-ratio from 0.30 to 0.60. The relative standard deviations were between 1-3%, demonstrating the strength of the test. Robustness of the methodology was demonstrated through the internal validation study, the reliability study, and both an internal and external replication study, as well as a systematic literature review and expert review of the construct, content, criterion and generalisability of the method. CONCLUSION Having a validated, effective and easily replicable testing method to quantify wound bed conformability of foam dressings is an important step towards achieving better healing outcomes.
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Affiliation(s)
- Mary R Brennan
- North Shore University Hospital, Manhasset, New York, US
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Ciptawati E, Takase H, Watanabe NM, Okamoto Y, Nur H, Umakoshi H. Preparation and Characterization of Biodegradable Sponge-like Cryogel Particles of Chitosan via the Inverse Leidenfrost (iLF) Effect. ACS OMEGA 2024; 9:2383-2390. [PMID: 38250365 PMCID: PMC10795030 DOI: 10.1021/acsomega.3c06639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024]
Abstract
Chitosan-based cryogel particles were synthesized using the inverse Leidenfrost (iLF) effect, with glutaraldehyde employed as the cross-linker. The resulting cryogels exhibited a sponge-like morphology with micrometer-sized interconnected pores and demonstrated resilience, withstanding up to three compression-release cycles. These characteristics highlight the potential of chitosan cryogels for diverse applications, including adsorption and biomedical uses. We further investigated the influence of varying acetic acid concentrations on the properties of the chitosan cryogels. Our findings revealed that the particle size distribution of the cryogels ranged from 1300 to 2900 μm. As the concentration of acetic acid increased, the swelling degree of the chitosan cryogels decreased, stabilizing at an approximate value of around 6 at 0.03 mol of acetic acid. Additionally, the shift in the absorption peak of the OH and free amino groups from 3261 to 3404 cm-1 confirmed the cross-linking reaction between chitosan and glutaraldehyde.
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Affiliation(s)
- Endang Ciptawati
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
- Department
of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Hayato Takase
- Department
of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Nozomi Morishita Watanabe
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Yukihiro Okamoto
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Hadi Nur
- Department
of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Hiroshi Umakoshi
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
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Liu Z, Qiu D, Yang T, Su J, Liu C, Su X, Li A, Sun P, Li J, Yan L, Ding C, Zhang S. Research Progress of Dihydroquercetin in the Treatment of Skin Diseases. Molecules 2023; 28:6989. [PMID: 37836832 PMCID: PMC10574795 DOI: 10.3390/molecules28196989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Skin is a barrier to maintaining the stability of the human environment and preventing the invasion of pathogens. When skin tissue is exposed to the external environment, it will inevitably develop defects due to trauma, injury, burns, ulcers, surgery, and chronic diseases. Rapid skin repair is the key to reducing infection, relieving pain, and improving quality of life. Dihydroquercetin is a kind of flavonoid that has a wide range of pharmacological activities and can improve skin repair, skin inflammation, skin cancer, and so on. In this paper, the application of dihydroquercetin in medical dressings and the research progress in the treatment of skin-related diseases are reviewed, so as to provide reference for further developing dihydroquercetin as a drug for the treatment of skin diseases.
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Affiliation(s)
- Ziyang Liu
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132109, China; (Z.L.); (D.Q.); (T.Y.); (J.S.); (C.L.); (X.S.)
| | - Dengjun Qiu
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132109, China; (Z.L.); (D.Q.); (T.Y.); (J.S.); (C.L.); (X.S.)
| | - Tong Yang
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132109, China; (Z.L.); (D.Q.); (T.Y.); (J.S.); (C.L.); (X.S.)
| | - Jingxu Su
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132109, China; (Z.L.); (D.Q.); (T.Y.); (J.S.); (C.L.); (X.S.)
| | - Chengyuan Liu
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132109, China; (Z.L.); (D.Q.); (T.Y.); (J.S.); (C.L.); (X.S.)
| | - Xinyue Su
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132109, China; (Z.L.); (D.Q.); (T.Y.); (J.S.); (C.L.); (X.S.)
| | - Anning Li
- Jilin Aodong Yanbian Pharmaceutical Co., Ltd., Yanbian Korean Autonomous Prefecture, Dunhua 133700, China; (A.L.); (P.S.); (J.L.); (L.Y.)
| | - Pingping Sun
- Jilin Aodong Yanbian Pharmaceutical Co., Ltd., Yanbian Korean Autonomous Prefecture, Dunhua 133700, China; (A.L.); (P.S.); (J.L.); (L.Y.)
| | - Jianguo Li
- Jilin Aodong Yanbian Pharmaceutical Co., Ltd., Yanbian Korean Autonomous Prefecture, Dunhua 133700, China; (A.L.); (P.S.); (J.L.); (L.Y.)
| | - Li Yan
- Jilin Aodong Yanbian Pharmaceutical Co., Ltd., Yanbian Korean Autonomous Prefecture, Dunhua 133700, China; (A.L.); (P.S.); (J.L.); (L.Y.)
| | - Chuanbo Ding
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132109, China; (Z.L.); (D.Q.); (T.Y.); (J.S.); (C.L.); (X.S.)
- Jilin Aodong Yanbian Pharmaceutical Co., Ltd., Yanbian Korean Autonomous Prefecture, Dunhua 133700, China; (A.L.); (P.S.); (J.L.); (L.Y.)
| | - Shuai Zhang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
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Deng X, Gould M, Ali MA. A review of current advancements for wound healing: Biomaterial applications and medical devices. J Biomed Mater Res B Appl Biomater 2022; 110:2542-2573. [PMID: 35579269 PMCID: PMC9544096 DOI: 10.1002/jbm.b.35086] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 12/12/2022]
Abstract
Wound healing is a complex process that is critical in restoring the skin's barrier function. This process can be interrupted by numerous diseases resulting in chronic wounds that represent a major medical burden. Such wounds fail to follow the stages of healing and are often complicated by a pro‐inflammatory milieu attributed to increased proteinases, hypoxia, and bacterial accumulation. The comprehensive treatment of chronic wounds is still regarded as a significant unmet medical need due to the complex symptoms caused by the metabolic disorder of the wound microenvironment. As a result, several advanced medical devices, such as wound dressings, wearable wound monitors, negative pressure wound therapy devices, and surgical sutures, have been developed to correct the chronic wound environment and achieve skin tissue regeneration. Most medical devices encompass a wide range of products containing natural (e.g., chitosan, keratin, casein, collagen, hyaluronic acid, alginate, and silk fibroin) and synthetic (e.g., polyvinyl alcohol, polyethylene glycol, poly[lactic‐co‐glycolic acid], polycaprolactone, polylactic acid) polymers, as well as bioactive molecules (e.g., chemical drugs, silver, growth factors, stem cells, and plant compounds). This review addresses these medical devices with a focus on biomaterials and applications, aiming to deliver a critical theoretical reference for further research on chronic wound healing.
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Affiliation(s)
- Xiaoxuan Deng
- Centre for Bioengineering & Nanomedicine (Dunedin), Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Maree Gould
- Centre for Bioengineering & Nanomedicine (Dunedin), Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - M Azam Ali
- Centre for Bioengineering & Nanomedicine (Dunedin), Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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6
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Delivery systems for platelet derived growth factors in wound healing: A review of recent developments and global patent landscape. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Bonferoni MC, Caramella C, Catenacci L, Conti B, Dorati R, Ferrari F, Genta I, Modena T, Perteghella S, Rossi S, Sandri G, Sorrenti M, Torre ML, Tripodo G. Biomaterials for Soft Tissue Repair and Regeneration: A Focus on Italian Research in the Field. Pharmaceutics 2021; 13:pharmaceutics13091341. [PMID: 34575417 PMCID: PMC8471088 DOI: 10.3390/pharmaceutics13091341] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 12/22/2022] Open
Abstract
Tissue repair and regeneration is an interdisciplinary field focusing on developing bioactive substitutes aimed at restoring pristine functions of damaged, diseased tissues. Biomaterials, intended as those materials compatible with living tissues after in vivo administration, play a pivotal role in this area and they have been successfully studied and developed for several years. Namely, the researches focus on improving bio-inert biomaterials that well integrate in living tissues with no or minimal tissue response, or bioactive materials that influence biological response, stimulating new tissue re-growth. This review aims to gather and introduce, in the context of Italian scientific community, cutting-edge advancements in biomaterial science applied to tissue repair and regeneration. After introducing tissue repair and regeneration, the review focuses on biodegradable and biocompatible biomaterials such as collagen, polysaccharides, silk proteins, polyesters and their derivatives, characterized by the most promising outputs in biomedical science. Attention is pointed out also to those biomaterials exerting peculiar activities, e.g., antibacterial. The regulatory frame applied to pre-clinical and early clinical studies is also outlined by distinguishing between Advanced Therapy Medicinal Products and Medical Devices.
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Affiliation(s)
| | | | | | - Bice Conti
- Correspondence: (M.C.B.); (B.C.); (F.F.)
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8
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Kumar P, Pillay V, Choonara YE. Macroporous chitosan/methoxypoly(ethylene glycol) based cryosponges with unique morphology for tissue engineering applications. Sci Rep 2021; 11:3104. [PMID: 33542336 PMCID: PMC7862315 DOI: 10.1038/s41598-021-82484-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 01/07/2021] [Indexed: 12/21/2022] Open
Abstract
Three-dimensional porous scaffolds are widely employed in tissue engineering and regenerative medicine for their ability to carry bioactives and cells; and for their platform properties to allow for bridging-the-gap within an injured tissue. This study describes the effect of various methoxypolyethylene glycol (mPEG) derivatives (mPEG (-OCH3 functionality), mPEG-aldehyde (mPEG-CHO) and mPEG-acetic acid (mPEG-COOH)) on the morphology and physical properties of chemically crosslinked, semi-interpenetrating polymer network (IPN), chitosan (CHT)/mPEG blend cryosponges. Physicochemical and molecular characterization revealed that the –CHO and –COOH functional groups in mPEG derivatives interacted with the –NH2 functionality of the chitosan chain. The distinguishing feature of the cryosponges was their unique morphological features such as fringe thread-, pebble-, curved quartz crystal-, crystal flower-; and canyon-like structures. The morphological data was well corroborated by the image processing data and physisorption curves corresponding to Type II isotherm with open hysteresis loops. Functionalization of mPEG had no evident influence on the macro-mechanical properties of the cryosponges but increased the matrix strength as determined by the rheomechanical analyses. The cryosponges were able to deliver bioactives (dexamethasone and curcumin) over 10 days, showed varied matrix degradation profiles, and supported neuronal cells on the matrix surface. In addition, in silico simulations confirmed the compatibility and molecular stability of the CHT/mPEG blend compositions. In conclusion, the study confirmed that significant morphological variations may be induced by minimal functionalization and crosslinking of biomaterials.
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Affiliation(s)
- Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 2193, South Africa
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 2193, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 2193, South Africa.
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9
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Vigani B, Valentino C, Cavalloro V, Catenacci L, Sorrenti M, Sandri G, Bonferoni MC, Bozzi C, Collina S, Rossi S, Ferrari F. Gellan-Based Composite System as a Potential Tool for the Treatment of Nervous Tissue Injuries: Cross-Linked Electrospun Nanofibers Embedded in a RC-33-Loaded Freeze-Dried Matrix. Pharmaceutics 2021; 13:pharmaceutics13020164. [PMID: 33530643 PMCID: PMC7912322 DOI: 10.3390/pharmaceutics13020164] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/15/2021] [Accepted: 01/21/2021] [Indexed: 12/31/2022] Open
Abstract
Injuries to the nervous system affect more than one billion people worldwide, and dramatically impact on the patient’s quality of life. The present work aimed to design and develop a gellan gum (GG)-based composite system for the local delivery of the neuroprotective sigma-1 receptor agonist, 1-[3-(1,1′-biphen)-4-yl] butylpiperidine (RC-33), as a potential tool for the treatment of tissue nervous injuries. The system, consisting of cross-linked electrospun nanofibers embedded in a RC-33-loaded freeze-dried matrix, was designed to bridge the lesion gap, control drug delivery and enhance axonal regrowth. The gradual matrix degradation should ensure the progressive interaction between the inner fibrous mat and the surrounding cellular environment. Nanofibers, prepared by electrospinning polymeric solutions containing GG, two different grades of poly (ethylene oxide) and poloxamer, were cross-linked with calcium ions. GG-based matrices, loaded with different amounts of RC-33, were prepared by freeze-drying. Dialysis studies and solid-state characterization pointed out the formation of an interaction product between GG and RC-33. RC-33-loaded freeze-dried matrices were characterized by the capability to absorb a high buffer content, forming a gel with marked viscoelastic properties, and by RC-33 controlled release properties. The presence of cross-linked nanofibers increased matrix mechanical resistance.
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Bianchi E, Ruggeri M, Rossi S, Vigani B, Miele D, Bonferoni MC, Sandri G, Ferrari F. Innovative Strategies in Tendon Tissue Engineering. Pharmaceutics 2021; 13:89. [PMID: 33440840 PMCID: PMC7827834 DOI: 10.3390/pharmaceutics13010089] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/31/2020] [Accepted: 01/08/2021] [Indexed: 12/15/2022] Open
Abstract
The tendon is a highly aligned connective tissue that transmits force from muscle to bone. Each year, more than 32 million tendon injuries have been reported, in fact, tendinopathies represent at least 50% of all sports injuries, and their incidence rates have increased in recent decades due to the aging population. Current clinical grafts used in tendon treatment are subject to several restrictions and there is a significant demand for alternative engineered tissue. For this reason, innovative strategies need to be explored. Tendon replacement and regeneration are complex since scaffolds need to guarantee an adequate hierarchical structured morphology and mechanical properties to stand the load. Moreover, to guide cell proliferation and growth, scaffolds should provide a fibrous network that mimics the collagen arrangement of the extracellular matrix in the tendons. This review focuses on tendon repair and regeneration. Particular attention has been devoted to the innovative approaches in tissue engineering. Advanced manufacturing techniques, such as electrospinning, soft lithography, and three-dimensional (3D) printing, have been described. Furthermore, biological augmentation has been considered, as an emerging strategy with great therapeutic potential.
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Affiliation(s)
| | | | | | | | | | | | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy; (E.B.); (M.R.); (S.R.); (B.V.); (D.M.); (M.C.B.); (F.F.)
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Catanzano O, Quaglia F, Boateng JS. Wound dressings as growth factor delivery platforms for chronic wound healing. Expert Opin Drug Deliv 2021; 18:737-759. [PMID: 33338386 DOI: 10.1080/17425247.2021.1867096] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Introduction: Years of tissue engineering research have clearly demonstrated the potential of integrating growth factors (GFs) into scaffolds for tissue regeneration, a concept that has recently been applied to wound dressings. The old concept of wound dressings that only take a passive role in wound healing has now been overtaken, and advanced dressings which can take an active part in wound healing, are of current research interest.Areas covered: In this review we will focus on the recent strategies for the delivery of GFs to wound sites with an emphasis on the different approaches used to achieve fine tuning of spatial and temporal concentrations to achieve therapeutic efficacy.Expert opinion: The use of GFs to accelerate wound healing and reduce scar formation is now considered a feasible therapeutic approach in patients with a high risk of infections and complications. The integration of micro - and nanotechnologies into wound dressings could be the key to overcome the inherent instability of GFs and offer adequate control over the release rate. Many investigations have led to encouraging outcomes in various in vitro and in vivo wound models, and it is expected that some of these technologies will satisfy clinical needs and will enter commercialization.
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Affiliation(s)
- Ovidio Catanzano
- Institute for Polymers Composites and Biomaterials (IPCB) - CNR, Pozzuoli, Italy
| | - Fabiana Quaglia
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, Naples, Italy
| | - Joshua S Boateng
- School of Science, Faculty of Engineering and Science, University of Greenwich, Medway, Central Avenue, Chatham Maritime, Kent, UK
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Yang Y, Zhang Y, Yan Y, Ji Q, Dai Y, Jin S, Liu Y, Chen J, Teng L. A Sponge-Like Double-Layer Wound Dressing with Chitosan and Decellularized Bovine Amniotic Membrane for Promoting Diabetic Wound Healing. Polymers (Basel) 2020; 12:E535. [PMID: 32131412 PMCID: PMC7182886 DOI: 10.3390/polym12030535] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/13/2020] [Accepted: 02/19/2020] [Indexed: 12/12/2022] Open
Abstract
The diabetic wounds do not heal easily in part because they are susceptible to infection due to environmental influences. Wound dressing is crucial to wound healing, as it can basically protect the wound from external damages and provide a suitable microenvironment for tissue regeneration. In this study, a double-layer membrane that consists of chitosan sponge and decellularized bovine amniotic membrane (dBAM) has been developed by freeze-casting method. The results showed that the porous structure of the sponge layer improved the performances of blood coagulation and swelling. The dense dBAM can optimize the mechanical property of wound dressing. In vitro studies revealed that the bilayer membrane had favorable biocompatible, especially for human foreskin fibroblast cells (HFF-1) cell adhesion and proliferation. Moreover, the full-thickness skin defects of diabetic model mice that treated with bilayer membrane showed over 80% closure in 8 days. Our findings imply that the double-layer dressing has great potentials to be used in diabetic patients.
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Affiliation(s)
- Yang Yang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China; (Y.Y.); (Y.Z.); (Y.Y.); (Q.J.); (Y.D.); (S.J.); (Y.L.)
| | - Yanyan Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China; (Y.Y.); (Y.Z.); (Y.Y.); (Q.J.); (Y.D.); (S.J.); (Y.L.)
| | - Yishu Yan
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China; (Y.Y.); (Y.Z.); (Y.Y.); (Q.J.); (Y.D.); (S.J.); (Y.L.)
| | - Qian Ji
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China; (Y.Y.); (Y.Z.); (Y.Y.); (Q.J.); (Y.D.); (S.J.); (Y.L.)
| | - Yutong Dai
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China; (Y.Y.); (Y.Z.); (Y.Y.); (Q.J.); (Y.D.); (S.J.); (Y.L.)
| | - Suyuan Jin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China; (Y.Y.); (Y.Z.); (Y.Y.); (Q.J.); (Y.D.); (S.J.); (Y.L.)
| | - Yanxian Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China; (Y.Y.); (Y.Z.); (Y.Y.); (Q.J.); (Y.D.); (S.J.); (Y.L.)
| | - Jinghua Chen
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, China; (Y.Y.); (Y.Z.); (Y.Y.); (Q.J.); (Y.D.); (S.J.); (Y.L.)
| | - Liping Teng
- School of Medicine, Jiangnan University, Wuxi 214122, China
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Nardini M, Perteghella S, Mastracci L, Grillo F, Marrubini G, Bari E, Formica M, Gentili C, Cancedda R, Torre ML, Mastrogiacomo M. Growth Factors Delivery System for Skin Regeneration: An Advanced Wound Dressing. Pharmaceutics 2020; 12:pharmaceutics12020120. [PMID: 32028579 PMCID: PMC7076531 DOI: 10.3390/pharmaceutics12020120] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/17/2020] [Accepted: 01/21/2020] [Indexed: 12/20/2022] Open
Abstract
Standard treatments of chronic skin ulcers based on the direct application of dressings still present several limits with regard to a complete tissue regeneration. Innovative strategies in tissue engineering offer materials that can tune cell behavior and promote growth tissue favoring cell recruitment in the early stages of wound healing. A combination of Alginate (Alg), Sericin (SS) with Platelet Lysate (PL), as a freeze-dried sponge, is proposed to generate a bioactive wound dressing to care skin lesions. Biomembranes at different composition were tested for the release of platelet growth factors, cytotoxicity, protective effects against oxidative stress and cell proliferation induction. The highest level of the growth factors release occurred within 48 h, an optimized time to burst a healing process in vivo; the presence of SS differently modulated the release of the factors by interaction with the proteins composing the biomembranes. Any cytotoxicity was registered, whereas a capability to protect cells against oxidative stress and induce proliferation was observed when PL was included in the biomembrane. In a mouse skin lesion model, the biomembranes with PL promoted the healing process, inducing an accelerated and more pronounced burst of inflammation, formation of granulation tissue and new collagen deposition, leading to a more rapid skin regeneration.
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Affiliation(s)
- Marta Nardini
- Department of Internal Medicine (DIMI), University of Genova, viale Benedetto XV 10, 16132 Genova, Italy;
- Biotherapy Unit, Ospedale Policlinico San Martino IRCCS, largo Rosanna Benzi 10, 16132 Genova, Italy
| | - Sara Perteghella
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (S.P.); (G.M.); (E.B.); (M.L.T.)
| | - Luca Mastracci
- Ospedale Policlinico San Martino IRCCS, largo Rosanna Benzi 10, 16132 Genova, Italy; (L.M.); (F.G.); (M.F.)
- Anatomic Pathology, Department of Integrated Surgical and Diagnostic Sciences (DISC), University of Genova, viale Benedetto XV 6, 16132 Genova, Italy
| | - Federica Grillo
- Ospedale Policlinico San Martino IRCCS, largo Rosanna Benzi 10, 16132 Genova, Italy; (L.M.); (F.G.); (M.F.)
- Anatomic Pathology, Department of Integrated Surgical and Diagnostic Sciences (DISC), University of Genova, viale Benedetto XV 6, 16132 Genova, Italy
| | - Giorgio Marrubini
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (S.P.); (G.M.); (E.B.); (M.L.T.)
| | - Elia Bari
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (S.P.); (G.M.); (E.B.); (M.L.T.)
| | - Matteo Formica
- Ospedale Policlinico San Martino IRCCS, largo Rosanna Benzi 10, 16132 Genova, Italy; (L.M.); (F.G.); (M.F.)
- Orthopedic Clinic, Department of Integrated Surgical and Diagnostic Sciences (DISC), University of Genova viale Benedetto XV 6, 16132 Genova, Italy
| | - Chiara Gentili
- Regenerative Medicine Laboratory, Department of Experimental Medicine (DIMES), University of Genova, via Leon Battista Alberti 2, 16132 Genova, Italy;
- Center for Biomedical Research (CEBR), University of Genova, viale Benedetto XV 9, 16132 Genova, Italy
| | - Ranieri Cancedda
- Endolife S.r.l., Piazza della Vittoria 15/23, 16121 Genova, Italy;
| | - Maria Luisa Torre
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (S.P.); (G.M.); (E.B.); (M.L.T.)
| | - Maddalena Mastrogiacomo
- Department of Internal Medicine (DIMI), University of Genova, viale Benedetto XV 10, 16132 Genova, Italy;
- Biotherapy Unit, Ospedale Policlinico San Martino IRCCS, largo Rosanna Benzi 10, 16132 Genova, Italy
- Center for Biomedical Research (CEBR), University of Genova, viale Benedetto XV 9, 16132 Genova, Italy
- Correspondence: ; Tel.: +39-010-555-8203
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14
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Chouhan D, Mandal BB. Silk biomaterials in wound healing and skin regeneration therapeutics: From bench to bedside. Acta Biomater 2020; 103:24-51. [PMID: 31805409 DOI: 10.1016/j.actbio.2019.11.050] [Citation(s) in RCA: 154] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 02/08/2023]
Abstract
Silk biomaterials are known for biomedical and tissue engineering applications including drug delivery and implantable devices owing to their biocompatible and a wide range of ideal physico-chemical properties. Herein, we present a critical overview of the progress of silk-based matrices in skin regeneration therapeutics with an emphasis on recent innovations and scientific findings. Beginning with a brief description of numerous varieties of silks, the review summarizes our current understanding of the biological properties of silk that help in the wound healing process. Various silk varieties such as silkworm silk fibroin, silk sericin, native spider silk and recombinant silk materials have been explored for cutaneous wound healing applications from the past few decades. With an aim to harness the regenerative properties of silk, numerous strategies have been applied to develop functional bioactive wound dressings and viable bio-artificial skin grafts in recent times. The review examines multiple inherent properties of silk that aid in the critical events of the healing process such as cell migration, cell proliferation, angiogenesis, and re-epithelialization. A detailed insight into the progress of silk-based cellular skin grafts is also provided that discusses various co-culture strategies and development of bilayer and tri-layer human skin equivalent under in vitro conditions. In addition, functionalized silk matrices loaded with bioactive molecules and antibacterial compounds are discussed, which have shown great potential in treating hard-to-heal wounds. Finally, clinical studies performed using silk-based translational products are reviewed that validate their regenerative properties and future applications in this area. STATEMENT OF SIGNIFICANCE: The review article discusses the recent advances in silk-based technologies for wound healing applications, covering various types of silk biomaterials and their properties suitable for wound repair and regeneration. The article demonstrates the progress of silk-based matrices with an update on the patented technologies and clinical advancements over the years. The rationale behind this review is to highlight numerous properties of silk biomaterials that aid in all the critical events of the wound healing process towards skin regeneration. Functionalization strategies to fabricate silk dressings containing bioactive molecules and antimicrobial compounds for drug delivery to the wound bed are discussed. In addition, a separate section describes the approaches taken to generate living human skin equivalent that have recently contributed in the field of skin tissue engineering.
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15
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Bonferoni MC, Rossi S, Sandri G, Caramella C, Del Fante C, Perotti C, Miele D, Vigani B, Ferrari F. Bioactive Medications for the Delivery of Platelet Derivatives to Skin Wounds. Curr Drug Deliv 2019; 16:472-483. [PMID: 30894109 PMCID: PMC6637103 DOI: 10.2174/1381612825666190320154406] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/24/2019] [Accepted: 03/13/2019] [Indexed: 12/13/2022]
Abstract
Chronic wounds are the result of alterations in the complex series of events of physiological wound healing. In particular, the prolonged inflammation results in increased protease activity, in the deg-radation of extracellular matrix (ECM) and of growth factors (GFs). The relevance of platelet GFs in maintaining and restoring the complex equilibrium of different moments in wound healing is well recog-nized. Moreover, the observed decrease of their levels in chronic wounds suggested a possible therapeutic role of the external application to the wounds. It has been also pointed out that tissue regeneration can be more efficiently obtained by the synergic use of different GFs. Platelet derivatives such as platelet-rich plasma (PRP) and platelet lysate (PL) are able to release GFs in a balanced pool. Their therapeutic use in regenerative medicine and wound healing has been therefore more and more frequently proposed in clini-cal trials and in the literature. The development of a suitable formulation able to control the GFs release rate, to protect the GFs, and to assure their prolonged contact with the wound site, is of paramount im-portance for the therapeutic success. The present review considers some formulation approaches for PRP and PL application to wounds
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Affiliation(s)
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Carla Caramella
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Claudia Del Fante
- Immunohaematology and Transfusion Service and Cell Therapy Unit of Fondazione IRCCS, S. Matteo, 27100 Pavia, Italy
| | - Cesare Perotti
- Immunohaematology and Transfusion Service and Cell Therapy Unit of Fondazione IRCCS, S. Matteo, 27100 Pavia, Italy
| | - Dalila Miele
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Barbara Vigani
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Franca Ferrari
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
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16
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An In Situ Gelling System for the Local Treatment of Inflammatory Bowel Disease (IBD). The Loading of Maqui ( Aristotelia Chilensis) Berry Extract as an Antioxidant and Anti-Inflammatory Agent. Pharmaceutics 2019; 11:pharmaceutics11110611. [PMID: 31739619 PMCID: PMC6920942 DOI: 10.3390/pharmaceutics11110611] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 12/28/2022] Open
Abstract
The aim of the present work was the development of an innovative in situ gelling system, to be applied on the mucosa of the distal colon via rectal route. The system consisted of three polymers having different functions: gellan (GG), able to jellify in presence of ions; methylcellulose (MC), a thermosensitive polymer with a gelation temperature close to 50 °C; and hydroxypropylcellulose (HPC), a mucoadhesive polymer. The three polymers were able to act synergistically, increasing the permanence of the vehicle on the mucosa and forming a protective gel layer. A DoE approach, "simplex centroid mixture design," was used to identify the optimal quantitative composition of the vehicle. The response variables considered were: vehicle viscosity at room temperature; increase in vehicle viscosity on increasing temperature (from room to physiological value) and upon dilution with simulated colonic fluid (SCF); and viscoelastic behavior, thixotropic area, and mucoadhesion properties of the gel formed at 37 °C upon dilution in SCF. The optimized vehicle was loaded with maqui berry extract (MBE), known for its antioxidant and anti-inflammatory properties. MBE loading (0.5% w/w) into the vehicle improved rheological and mucoadhesive properties of the formulation. Both MBE and the optimized vehicle were not cytotoxic towards human fibroblasts and Caco-2 cells. Moreover, the optimized vehicle did not affect MBE antioxidant properties.
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17
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Vigani B, Faccendini A, Rossi S, Sandri G, Bonferoni MC, Grisoli P, Ferrari F. Development of a Mucoadhesive in Situ Gelling Formulation for the Delivery of Lactobacillus gasseri into Vaginal Cavity. Pharmaceutics 2019; 11:pharmaceutics11100511. [PMID: 31623341 PMCID: PMC6836057 DOI: 10.3390/pharmaceutics11100511] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/26/2019] [Accepted: 09/29/2019] [Indexed: 01/08/2023] Open
Abstract
Local administration of vaginal probiotics, especially lactobacilli, has been recently proposed as an effective prevention strategy against candidosis recurrences, which affect 40-50% of women. In this context, the aim of the present work was the development of a mucoadhesive in situ gelling formulation for the vaginal administration of Lactobacillus gasseri. Mixtures of poloxamer 407 (P407) and methylcellulose (MC), two thermosensitive polymers, were prepared and subjected to rheological analyses for the assessment of their sol/gel transition temperature. The association of P407 (15% w/w) with MC (1.5% w/w) produced an increase in gelation extent at 37 °C even after dilution in simulated vaginal fluid (SVF). The presence of 0.5% w/w pectin (PEC) produced a reduction of vehicle pH and viscosity at 25 °C that is the vehicle resistance to flow during administration. The presence of a low concentration of xyloglucan (XYL) (0.25% w/w) increases the mucoadhesive properties and the capability to gelify at 37 °C of the formulation after dilution with SVF. A three-component (P407/MC/PEC; 3cM) and a four-component (P407/MC/PEC/XYL; 4cM) mixture were selected as promising candidates for the delivery of L. gasseri to the vaginal cavity. They were able to preserve L. gasseri viability and were cytocompatible towards the HeLa cell line.
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Affiliation(s)
- Barbara Vigani
- Department of Drug Sciences, University of Pavia, V.le Taramelli, 12, 27100 Pavia, Italy.
| | - Angela Faccendini
- Department of Drug Sciences, University of Pavia, V.le Taramelli, 12, 27100 Pavia, Italy.
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, V.le Taramelli, 12, 27100 Pavia, Italy.
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, V.le Taramelli, 12, 27100 Pavia, Italy.
| | | | - Pietro Grisoli
- Department of Drug Sciences, University of Pavia, V.le Taramelli, 12, 27100 Pavia, Italy.
| | - Franca Ferrari
- Department of Drug Sciences, University of Pavia, V.le Taramelli, 12, 27100 Pavia, Italy.
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18
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Nicoletti G, Saler M, Villani L, Rumolo A, Tresoldi MM, Faga A. Platelet Rich Plasma Enhancement of Skin Regeneration in an ex-vivo Human Experimental Model. Front Bioeng Biotechnol 2019; 7:2. [PMID: 30701173 PMCID: PMC6343075 DOI: 10.3389/fbioe.2019.00002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 01/03/2019] [Indexed: 02/04/2023] Open
Abstract
This study reports on the development of an original, ex-vivo wounded skin culture protocol using autologous Platelet Rich Plasma (PRP) and enriched Dulbecco's Modified Eagle's Medium (DMEM). Human skin samples obtained from specimens harvested during reduction mammoplasty procedures, were injured in their central portion—to create a standard wound—and cultured under three different conditions: – enriched DMEM with saline solution in the central wound (control) – enriched DMEM with the same medium in the central wound – enriched DMEM plus 2.5% autologous PRP, with the same PRP added medium in the central wound. Morphological analysis was carried out at 0 h (T0) and on days 1, 3, 5 and 10 (T1-T3-T5-T10) using Hematoxylin and Eosin; Masson's trichrome staining; Weigert staining and Ki-67 staining to identify the skin histological features in the different experimental conditions. The combination of DMEM and PRP allowed a favorable modulation of the epithelial cells and fibroblasts proliferation, and a relevant anti-inflammatory action. PRP also demonstrated an inhibitory effect on both the collagen and elastic fibers' de-structuration and a favorable modulation of the re-organization of these fibers. The step by step histological and immune-histo-chemical regenerative effects of PRP on human skin wound repair and regeneration process was observed over a period of 10 days.
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Affiliation(s)
- Giovanni Nicoletti
- Plastic and Reconstructive Surgery, Department of Clinical Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.,Advanced Technologies for Regenerative Medicine and Inductive Surgery Research Center, University of Pavia, Pavia, Italy.,Plastic and Reconstructive Surgery Unit, Department of Surgery, Istituti Clinici Scientifici Maugeri, Pavia, Italy
| | - Marco Saler
- Plastic and Reconstructive Surgery, Department of Clinical Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Laura Villani
- Pathological Anatomy and Histology Unit, Istituti Clinici Scientifici Maugeri, Pavia, Italy
| | - Agnese Rumolo
- Plastic and Reconstructive Surgery, Department of Clinical Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Marco Mario Tresoldi
- Plastic and Reconstructive Surgery, Department of Clinical Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.,Plastic and Reconstructive Surgery Unit, Department of Surgery, Istituti Clinici Scientifici Maugeri, Pavia, Italy
| | - Angela Faga
- Advanced Technologies for Regenerative Medicine and Inductive Surgery Research Center, University of Pavia, Pavia, Italy.,Plastic and Reconstructive Surgery Unit, Department of Surgery, Istituti Clinici Scientifici Maugeri, Pavia, Italy.,Department of Molecular Medicine, University of Pavia, Pavia, Italy
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19
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Autologous Fat Injection versus Lundborg Resection Arthroplasty for the Treatment of Trapeziometacarpal Joint Osteoarthritis. Plast Reconstr Surg 2018; 142:802e-803e. [DOI: 10.1097/prs.0000000000004935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Bari E, Perteghella S, Marrubini G, Sorrenti M, Catenacci L, Tripodo G, Mastrogiacomo M, Mandracchia D, Trapani A, Faragò S, Gaetani P, Torre ML. In vitro efficacy of silk sericin microparticles and platelet lysate for intervertebral disk regeneration. Int J Biol Macromol 2018; 118:792-799. [PMID: 29959012 DOI: 10.1016/j.ijbiomac.2018.06.135] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/14/2018] [Accepted: 06/26/2018] [Indexed: 12/15/2022]
Abstract
Intervertebral disk degeneration is an oxidative and inflammatory pathological condition that induces viability and functionality reduction of Nucleus Pulposus cells (NPs). Cellular therapies were previously proposed to repair and substitute the herniated disk but low proliferative index and pathological conditions of NPs dramatically reduced the efficacy of this approach. To overcome these problems we proposed, for the first time, a therapeutic system based on the association of silk sericin microparticles and platelet-derived products. Silk sericin (SS) is a bioactive protein with marked antioxidant properties, while platelet lysate (PL) and platelet poor plasma (PPP) represent a source of growth factors able to support cell viability and to promote tissue regeneration. We demonstrated that the mixture PL + PPP promoted NPs proliferation with a significant reduction of cellular doubling time. SS microparticles, alone or in combination with PPP, presented the higher ROS-scavenging activity while, SS microparticles and PL resulted as the best association able to protect NPs against oxidative stress induce by hydroxide peroxide. Based on these results, the authors are confident that, with the ever increasing need of efficacious tools for regenerative medicine purposes, SS microparticles and PL + PPP association could represent an effective approach for the development of low impact and non-invasive therapies.
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Affiliation(s)
- Elia Bari
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Sara Perteghella
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy; Pharmaexceed srl, 27100 Pavia, Italy.
| | - Giorgio Marrubini
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Milena Sorrenti
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Laura Catenacci
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Giuseppe Tripodo
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | | | - Delia Mandracchia
- Department of Pharmacy-Drug Sciences, University of Bari, 70125 Bari, Italy
| | - Adriana Trapani
- Department of Pharmacy-Drug Sciences, University of Bari, 70125 Bari, Italy
| | - Silvio Faragò
- Silk Division, Innovhub, Stazioni Sperimentali per l'Industria, 20133 Milan, Italy
| | - Paolo Gaetani
- Pharmaexceed srl, 27100 Pavia, Italy; U.O. Chirurgia Vertebrale, Istituto Clinico Città di Pavia, Gruppo San Donato, 27100 Pavia, Italy
| | - Maria Luisa Torre
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy; Pharmaexceed srl, 27100 Pavia, Italy
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21
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Mendes BB, Gómez-Florit M, Babo PS, Domingues RM, Reis RL, Gomes ME. Blood derivatives awaken in regenerative medicine strategies to modulate wound healing. Adv Drug Deliv Rev 2018; 129:376-393. [PMID: 29288732 DOI: 10.1016/j.addr.2017.12.018] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/04/2017] [Accepted: 12/22/2017] [Indexed: 02/06/2023]
Abstract
Blood components play key roles in the modulation of the wound healing process and, together with the provisional fibrin matrix ability to selectively bind bioactive molecules and control its spatial-temporal presentation, define the complex microenvironment that characterize this biological process. As a biomimetic approach, the use of blood derivatives in regenerative strategies has awakened as a source of multiple therapeutic biomolecules. Nevertheless, and despite their clinical relevance, blood derivatives have been showing inconsistent therapeutic results due to several factors, including proper control over their delivery mechanisms. Herein, we highlight recent trends on the use biomaterials to protect, sequester and deliver these pools of biomolecules in tissue engineering and regenerative medicine approaches. Particular emphasis is given to strategies that enable to control their spatiotemporal delivery and improve the selectivity of presentation profiles of the biomolecules derived from blood derivatives rich in platelets. Finally, we discussed possible directions for biomaterials design to potentiate the aimed regenerative effects of blood derivatives and achieve efficient therapies.
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22
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Rossi S, Mori M, Vigani B, Bonferoni MC, Sandri G, Riva F, Caramella C, Ferrari F. A novel dressing for the combined delivery of platelet lysate and vancomycin hydrochloride to chronic skin ulcers: Hyaluronic acid particles in alginate matrices. Eur J Pharm Sci 2018; 118:87-95. [PMID: 29574078 DOI: 10.1016/j.ejps.2018.03.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 02/26/2018] [Accepted: 03/20/2018] [Indexed: 11/19/2022]
Abstract
The aim of the present work was to develop a medication allowing for the combined delivery of platelet lysate (PL) and an anti-infective model drug, vancomycin hydrochloride (VCM), to chronic skin ulcers. A simple method was set up for the preparation of hyaluronic acid (HA) core-shell particles, loaded with PL and coated with calcium alginate, embedded in a VCM containing alginate matrix. Two different CaCl2 concentrations were investigated to allow for HA/PL core-shell particle formation. The resulting dressings were characterized for mechanical and hydration properties and tested in vitro (on fibroblasts) and ex-vivo (on skin biopsies) for biological activity. They were found of sufficient mechanical strength to withstand packaging and handling stress and able to absorb a high amount of wound exudate and to form a protective gel on the lesion area. The CaCl2 concentration used for shell formation did not affect VCM release from the alginate matrix, but strongly modified the release of PGFAB (chosen as representative of growth factors present in PL) from HA particles. In vitro and ex vivo tests provided sufficient proof of concept of the ability of dressings to improve skin ulcers healing.
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Affiliation(s)
- S Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | - M Mori
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - B Vigani
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - M C Bonferoni
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - G Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - F Riva
- Department of Public Health, Experimental and Forensic Medicine, Histology and Embryology Unit, University of Pavia 10, 27100 Pavia, Italy
| | - C Caramella
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - F Ferrari
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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23
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Saporito F, Sandri G, Rossi S, Bonferoni MC, Riva F, Malavasi L, Caramella C, Ferrari F. Freeze dried chitosan acetate dressings with glycosaminoglycans and traxenamic acid. Carbohydr Polym 2018; 184:408-417. [DOI: 10.1016/j.carbpol.2017.12.066] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 11/17/2017] [Accepted: 12/24/2017] [Indexed: 01/01/2023]
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24
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Association of Alpha Tocopherol and Ag Sulfadiazine Chitosan Oleate Nanocarriers in Bioactive Dressings Supporting Platelet Lysate Application to Skin Wounds. Mar Drugs 2018; 16:md16020056. [PMID: 29425164 PMCID: PMC5852484 DOI: 10.3390/md16020056] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 01/31/2018] [Accepted: 02/06/2018] [Indexed: 12/25/2022] Open
Abstract
Chitosan oleate was previously proposed to encapsulate in nanocarriers some poorly soluble molecules aimed to wound therapy, such as the anti-infective silver sulfadiazine, and the antioxidant α tocopherol. Because nanocarriers need a suitable formulation to be administered to wounds, in the present paper, these previously developed nanocarriers were loaded into freeze dried dressings based on chitosan glutamate. These were proposed as bioactive dressings aimed to support the application to wounds of platelet lysate, a hemoderivative rich in growth factors. The dressings were characterized for hydration capacity, morphological aspect, and rheological and mechanical behavior. Although chitosan oleate nanocarriers clearly decreased the mechanical properties of dressings, these remained compatible with handling and application to wounds. Preliminary studies in vitro on fibroblast cell cultures demonstrated good compatibility of platelet lysate with nanocarriers and bioactive dressings. An in vivo study on a murine wound model showed an accelerating wound healing effect for the bioactive dressing and its suitability as support of the platelet lysate application to wounds.
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25
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Nicoletti G, Saler M, Pellegatta T, Tresoldi MM, Bonfanti V, Malovini A, Faga A, Riva F. Ex vivo regenerative effects of a spring water. Biomed Rep 2017; 7:508-514. [PMID: 29188053 PMCID: PMC5702968 DOI: 10.3892/br.2017.1002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 09/14/2017] [Indexed: 12/02/2022] Open
Abstract
Previous experiments by our group have indicated the regenerative effects of a spring water (Comano), which was possibly associated with the native non-pathogenic bacterial flora. The present study aimed to confirm these regenerative properties in a human ex vivo experimental model in the context of physiological wound healing. Human 6-mm punch skin biopsies harvested during plastic surgery sessions were injured in their central portion to induce skin loss and were cultured in either conventional medium (controls) or medium powder reconstituted with filtered Comano spring water (treated samples). At 24, 48 and 72 h the specimens were observed following staining with hematoxylin and eosin, Picrosirius Red, orcein and anti-proliferating cell nuclear antigen. Compared with the controls, the treated samples exhibited reduced overall cell infiltration, evidence of fibroblasts, stimulation of cell proliferation and collagen and elastic fiber regeneration. In the spring water, in addition to 12 resident non-pathogenic bacterial strains exhibiting favorable metabolic activities, more unknown non-pathogenic species are being identified by genomic analysis. In the present study, the efficacy of this ‘germ-free’, filtered spring water in wound regeneration was indicated. Thus, the Comano spring water microbiota should be acknowledged for its regenerative properties.
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Affiliation(s)
- Giovanni Nicoletti
- Plastic and Reconstructive Surgery, Department of Clinical-Surgical Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy.,Advanced Technologies for Regenerative Medicine and Inductive Surgery Research Center, University of Pavia, 27100 Pavia, Italy.,Plastic and Reconstructive Surgery Unit, Salvatore Maugeri Research and Care Institute, 27100 Pavia, Italy
| | - Marco Saler
- Plastic and Reconstructive Surgery, Department of Clinical-Surgical Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Tommaso Pellegatta
- Plastic and Reconstructive Surgery, Department of Clinical-Surgical Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Marco Mario Tresoldi
- Plastic and Reconstructive Surgery, Department of Clinical-Surgical Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy.,Plastic and Reconstructive Surgery Unit, Salvatore Maugeri Research and Care Institute, 27100 Pavia, Italy
| | - Viola Bonfanti
- Plastic and Reconstructive Surgery, Department of Clinical-Surgical Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Alberto Malovini
- Laboratory of Informatics and Systems Engineering for Clinical Research, Istituti Clinici Scientifici Maugeri, 27100 Pavia, Italy
| | - Angela Faga
- Plastic and Reconstructive Surgery, Department of Clinical-Surgical Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy.,Advanced Technologies for Regenerative Medicine and Inductive Surgery Research Center, University of Pavia, 27100 Pavia, Italy.,Plastic and Reconstructive Surgery Unit, Salvatore Maugeri Research and Care Institute, 27100 Pavia, Italy
| | - Federica Riva
- Advanced Technologies for Regenerative Medicine and Inductive Surgery Research Center, University of Pavia, 27100 Pavia, Italy.,Department of Public Health, Experimental and Forensic Medicine, Histology and Embryology Unit, University of Pavia, 27100 Pavia, Italy
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In Vitro Effectiveness of Microspheres Based on Silk Sericin and Chlorella vulgaris or Arthrospira platensis for Wound Healing Applications. MATERIALS 2017; 10:ma10090983. [PMID: 28832540 PMCID: PMC5615638 DOI: 10.3390/ma10090983] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/10/2017] [Accepted: 08/21/2017] [Indexed: 01/03/2023]
Abstract
Some natural compounds have recently been widely employed in wound healing applications due to their biological properties. One such compound is sericin, which is produced by Bombix mori, while active polyphenols, polysaccharides and proteins are synthetized by Chlorella vulgaris and Arthrospira platensis microalgae. Our hypothesis was that sericin, as an optimal bioactive polymeric carrier for microencapsulation process, could also improve the regenerative effect of the microalgae. A solvent-free extraction method and spray drying technique were combined to obtain five formulations, based on algal extracts (C. vulgaris and A. platensis, Chl and Art, respectively) or silk sericin (Ser) or their mixtures (Chl-Ser and Art-Ser). The spray drying was a suitable method to produce microspheres with similar dimensions, characterized by collapsed morphology with a rough surface. Art and Art-Ser showed higher antioxidant properties than other formulations. All microspheres resulted in cytocompatibility on fibroblasts until 1.25 mg/mL and promoted cell migration and the complete wound closure; this positive effect was further highlighted after treatment with Art and Art-Ser. To our surprize the combination of sericin to Art did not improve the microalgae extract efficacy, at least in our experimental conditions.
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Tenci M, Rossi S, Bonferoni MC, Sandri G, Mentori I, Boselli C, Cornaglia AI, Daglia M, Marchese A, Caramella C, Ferrari F. Application of DoE approach in the development of mini-capsules, based on biopolymers and manuka honey polar fraction, as powder formulation for the treatment of skin ulcers. Int J Pharm 2017; 516:266-277. [DOI: 10.1016/j.ijpharm.2016.10.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/17/2016] [Accepted: 10/22/2016] [Indexed: 10/20/2022]
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28
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Particulate systems based on pectin/chitosan association for the delivery of manuka honey components and platelet lysate in chronic skin ulcers. Int J Pharm 2016; 509:59-70. [DOI: 10.1016/j.ijpharm.2016.05.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/19/2016] [Accepted: 05/20/2016] [Indexed: 11/23/2022]
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