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Kulaksiz Y, Yenigün A, Şerif Aydin M, Doğan R, Tuğrul S, Özturan O. Effects of Platelet-Rich Plasma and Concentrated Growth Factor on Viability of Ultra-Diced Cartilage Grafts in a Rabbit Model. J Oral Maxillofac Surg 2024; 82:1067-1075. [PMID: 38909628 DOI: 10.1016/j.joms.2024.05.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/25/2024]
Abstract
BACKGROUND Although rhinoplastic surgery has progressed considerably in recent years, nasal dorsal irregularities still cause postoperative distress for both surgeons and patients. PURPOSE The aim of this study was to measure the association between two biologic graft adjuncts, platelet-rich plasma (PRP) and concentrated growth factor (CGF), and ultra-diced cartilage viability in an animal model. STUDY DESIGN, SETTING, AND SAMPLE This study was designed as a randomized in-vivo study using a rabbit model. Fourteen rabbits were utilized in this investigation. The ultra-diced cartilage was obtained from auricular cartilage. PREDICTOR VARIABLE The graft biologic adjunct is the predictor variable. There were three treatment groups: graft mixed with PRP or CGF or untreated (control). The grafts were placed in three separate pockets opened on the same rabbit. Grafts were harvested 3 months after insertion for analysis. MAIN OUTCOME VARIABLE(S) The primary outcome variable was histopathological and regenerative scores obtained from multiple histopathological parameters indicating the viability of the cartilage. Histopathological score parameters were chondrocyte loss, inflammation, fibrosis, cartilage fragmentation, and calcified area formations in the lacunae. Regenerative score parameters were peripheral cell proliferation in the cartilage tissue, vascularization in the connective tissue, proteoglycan increase in the matrix, and the amount of connective tissue. COVARIATES The variables were age, sex, and weight. ANALYSES Statistical analysis employed the analysis of variance test, with a significance level of P < .05. RESULTS The sample was composed of 14 rabbits and 42 samples. The histopathologic scores were 11.93 (±2.49), 8.78 (±2.19), and 6.85 (±1.46) for the control, PRP, and CGF groups, respectively. A statistically significant difference was found in the PRP (P < .0275) and CGF (P < .0001) groups compared to the control group. The regenerative scores were 6.21 (±0.97), 8.85 (±1.70), and 12.07 (±1.26) for the control, PRP and CGF groups, respectively. A statistically significant difference was found in the PRP (P < .0159) and CGF (P < .0001) groups compared to the control group. CONCLUSION AND RELEVANCE This is the first study investigating the ultra-diced cartilage graft in an experimental animal model. Histopathological examination has shown that mixing ultra-diced cartilage with CGF or PRP increases viability by reducing the histopathological score and increasing the regenerative score.
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Affiliation(s)
- Yasin Kulaksiz
- Department of Otorhinolaryngology, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Turkey.
| | - Alper Yenigün
- Department of Otorhinolaryngology, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Turkey
| | - Mehmet Şerif Aydin
- Department of Histology and Embryology, Regenerative and Restorative Medicine Research Center, Istanbul Medipol University, Istanbul, Turkey
| | - Remzi Doğan
- Department of Otorhinolaryngology, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Turkey
| | - Selahattin Tuğrul
- Department of Otorhinolaryngology, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Turkey
| | - Orhan Özturan
- Department of Otorhinolaryngology, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Turkey
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Hosty L, Heatherington T, Quondamatteo F, Browne S. Extracellular matrix-inspired biomaterials for wound healing. Mol Biol Rep 2024; 51:830. [PMID: 39037470 PMCID: PMC11263448 DOI: 10.1007/s11033-024-09750-9] [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: 05/21/2024] [Accepted: 06/21/2024] [Indexed: 07/23/2024]
Abstract
Diabetic foot ulcers (DFU) are a debilitating and life-threatening complication of Diabetes Mellitus. Ulceration develops from a combination of associated diabetic complications, including neuropathy, circulatory dysfunction, and repetitive trauma, and they affect approximately 19-34% of patients as a result. The severity and chronic nature of diabetic foot ulcers stems from the disruption to normal wound healing, as a result of the molecular mechanisms which underly diabetic pathophysiology. The current standard-of-care is clinically insufficient to promote healing for many DFU patients, resulting in a high frequency of recurrence and limb amputations. Biomaterial dressings, and in particular those derived from the extracellular matrix (ECM), have emerged as a promising approach for the treatment of DFU. By providing a template for cell infiltration and skin regeneration, ECM-derived biomaterials offer great hope as a treatment for DFU. A range of approaches exist for the development of ECM-derived biomaterials, including the use of purified ECM components, decellularisation and processing of donor/ animal tissues, or the use of in vitro-deposited ECM. This review discusses the development and assessment of ECM-derived biomaterials for the treatment of chronic wounds, as well as the mechanisms of action through which ECM-derived biomaterials stimulate wound healing.
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Affiliation(s)
- Louise Hosty
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland
| | - Thomas Heatherington
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland
| | - Fabio Quondamatteo
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland.
| | - Shane Browne
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland.
- CÙRAM, Centre for Research in Medical Devices, University of Galway, Galway, H91 W2TY, Ireland.
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin 2, Ireland.
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Celikten M, Sahin H, Senturk GE, Bilsel K, Pulatkan A, Kapicioglu M, Sakul BU. The effect of platelet-rich fibrin, platelet-rich plasma, and concentrated growth factor in the repair of full thickness rotator cuff tears. J Shoulder Elbow Surg 2024; 33:e261-e277. [PMID: 37898418 DOI: 10.1016/j.jse.2023.09.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 09/11/2023] [Accepted: 09/24/2023] [Indexed: 10/30/2023]
Abstract
BACKGROUND Rotator cuff lesions rank among the prevalent causes of shoulder pain. Combining surgical interventions with growth factors, scaffolds, and stem cell therapies can effectively decrease the likelihood of rotator cuff repair recurrence. Platelet-rich plasma (PRP), platelet-rich fibrin (PRF), and concentrated growth factor (CGF), isolated from blood and rich in growth factors, have a critical role in cell migration, cell proliferation, and angiogenesis during the tissue regeneration process. Investigations have further substantiated the beneficial impact of PRP and PRF on the biomechanical and histologic attributes of the tendon-bone interface. We aimed to investigate the effectiveness of CGF compared with PRF and PRP in the repair of rotator cuff lesions as a new treatment strategy. METHODS Incision was performed on both shoulder regions of 21 adult rabbits. After 8 weeks, both shoulders of the rabbits were repaired by suturing. PRF and CGF were administered to 2 separate groups along with the repair. Tissues were collected for biomechanical measurements and histologic evaluations. RESULTS Histologically, CGF, PRF, and PRP showed similar results to the healthy control group. The level of improvement was significant in the PRF and PRP groups. In the PRF group, the distribution of Ki67 (+), CD31 (+), and CD34 (+) cells was determined intensely in the tendon-bone junction regions. Apoptotic cells increased significantly in the repair group compared with the healthy group, whereas fewer apoptotic cells were found in the PRF-, PRP-, and CGF-applied groups. In the biomechanical results, no statistical difference was recorded among the groups. CONCLUSION The use of PRF, PRP, and CGF in rotator cuff repair shows promise in shortening the treatment period and preventing the recurrence of rotator cuff lesions.
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Affiliation(s)
- Mert Celikten
- Department of Anatomy, Health Sciences Institute, Istanbul Medipol University, Istanbul, Turkey.
| | - Hakan Sahin
- Department of Histology and Embryology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Gozde Erkanli Senturk
- Department of Histology and Embryology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Kerem Bilsel
- Department of Orthopaedics and Traumatology, Acibadem Mehmet Ali Aydinlar University, Faculty of Medicine, Istanbul, Turkey
| | - Anil Pulatkan
- Department of Orthopedics and Traumatology, School of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Mehmet Kapicioglu
- Department of Orthopedics and Traumatology, School of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Bayram Ufuk Sakul
- Department of Anatomy, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
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Sankar S, Kodiveri Muthukaliannan G. Deciphering the crosstalk between inflammation and biofilm in chronic wound healing: Phytocompounds loaded bionanomaterials as therapeutics. Saudi J Biol Sci 2024; 31:103963. [PMID: 38425782 PMCID: PMC10904202 DOI: 10.1016/j.sjbs.2024.103963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/15/2024] [Accepted: 02/17/2024] [Indexed: 03/02/2024] Open
Abstract
In terms of the economics and public health, chronic wounds exert a significant detrimental impact on the health care system. Bacterial infections, which cause the formation of highly resistant biofilms that elude standard antibiotics, are the main cause of chronic, non-healing wounds. Numerous studies have shown that phytochemicals are effective in treating a variety of diseases, and traditional medicinal plants often include important chemical groups such alkaloids, phenolics, tannins, terpenes, steroids, flavonoids, glycosides, and fatty acids. These substances are essential for scavenging free radicals which helps in reducing inflammation, fending off infections, and hastening the healing of wounds. Bacterial species can survive in chronic wound conditions because biofilms employ quorum sensing as a communication technique which regulates the expression of virulence components. Fortunately, several phytochemicals have anti-QS characteristics that efficiently block QS pathways, prevent drug-resistant strains, and reduce biofilm development in chronic wounds. This review emphasizes the potential of phytocompounds as crucial agents for alleviating bacterial infections and promoting wound healing by reducing the inflammation in chronic wounds, exhibiting potential avenues for future therapeutic approaches to mitigate the healthcare burden provided by these challenging conditions.
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Affiliation(s)
- Srivarshini Sankar
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore 632 014, Tamil Nadu, India
| | - Gothandam Kodiveri Muthukaliannan
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore 632 014, Tamil Nadu, India
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Zhang QD, Duan QY, Tu J, Wu FG. Thrombin and Thrombin-Incorporated Biomaterials for Disease Treatments. Adv Healthc Mater 2024; 13:e2302209. [PMID: 37897228 DOI: 10.1002/adhm.202302209] [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: 07/12/2023] [Revised: 10/20/2023] [Indexed: 10/29/2023]
Abstract
Thrombin, a coagulation-inducing protease, has long been used in the hemostatic field. During the past decades, many other therapeutic uses of thrombin have been developed. For instance, burn treatment, pseudoaneurysm therapy, wound management, and tumor vascular infarction (or tumor vasculature blockade therapy) can all utilize the unique and powerful function of thrombin. Based on their therapeutic effects, many thrombin-associated products have been certificated by the Food and Drug Administration, including bovine thrombin, human thrombin, recombinant thrombin, fibrin glue, etc. Besides, several thrombin-based drugs are currently undergoing clinical trials. In this article, the therapeutic uses of thrombin (from the initial hemostasis to the latest cancer therapy), the commercially available drugs associated with thrombin, and the pros and cons of thrombin-based therapeutics (e.g., adverse immune responses related to bovine thrombin, thromboinflammation, and vasculogenic "rebounds") are summarized. Further, the current challenges and possible future research directions of thrombin-incorporated biomaterials and therapies are discussed. It is hoped that this review may provide a valuable reference for researchers in this field and help them to design safer and more effective thrombin-based drugs for fighting against various intractable diseases.
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Affiliation(s)
- Qiong-Dan Zhang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Southeast University Road, Nanjing, Jiangsu, 211189, P. R. China
| | - Qiu-Yi Duan
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Southeast University Road, Nanjing, Jiangsu, 211189, P. R. China
| | - Jing Tu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Southeast University Road, Nanjing, Jiangsu, 211189, P. R. China
| | - Fu-Gen Wu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Southeast University Road, Nanjing, Jiangsu, 211189, P. R. China
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Franco R, Cervino G, Vazzana G, Rocca FD, Ferrari G, Cicciù M, Minervini G. Use of Concentrated Growth Factor (CGF) in Prosthetic-Guided Reconstruction on Two-Wall Bone Defect after Cystectomy: An Alternative to Traditional Regeneration. Eur J Dent 2024; 18:392-396. [PMID: 37311550 PMCID: PMC10959619 DOI: 10.1055/s-0043-1768973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023] Open
Abstract
This clinical case report's objective was to describe an alternative technique executed to ensure bone regeneration after removing a cystic lesion in the upper jaw. The bone defect after the cystectomy was filled with autologous fibrin-rich clots containing concentrated growth factor (CGF). A 45-year-old female patient was presumed to have a cystic lesion with massive bone destruction on the vestibular and palatal walls between teeth 2.2 and 2.3. CGF was applied to fill the gap to promote the development of the bone. The tooth was asymptomatic and repair was still increasing steadily after a year, according to the results of the clinical and radiological follow-up assessment. This article describes a different way to treat a two-wall defect involving both the palatal and buccal bone, after removing a cystic lesion, with the use of CGF as an equivalent to the traditional use of autologous or heterologous bone. A promising substance for bone repair is CGF fibrin, which may encourage the growth of new bone in jaw deformities and promote bone tissue healing.
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Affiliation(s)
- Rocco Franco
- Department of Biomedicine and Prevention, University of University of Rome “Tor Vergata,” Rome, Italy
| | - Gabriele Cervino
- School of Dentistry Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | | | | | | | - Marco Cicciù
- School of Dentistry Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Giuseppe Minervini
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, India
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania “Luigi Vanvitelli,” Naples, Italy
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Yakovlev S, Tjandra N, Strickland DK, Medved L. Identification of Neural (N)-Cadherin as a Novel Endothelial Cell Receptor for Fibrin and Localization of the Complementary Binding Sites. Biochemistry 2024; 63:202-211. [PMID: 38156948 PMCID: PMC10848343 DOI: 10.1021/acs.biochem.3c00475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Based on the high structural homology between vascular endothelial (VE)-cadherin and neural (N)-cadherin, we hypothesized that fibrin, which is known to interact with VE-cadherin and promote angiogenesis through this interaction, may also interact with N-cadherin. To test this hypothesis, we prepared fibrin and its plasmin-produced and recombinant fragments covering practically all parts of the fibrin molecule. We also prepared the soluble extracellular portion of N-cadherin (sN-cadherin), which includes all five extracellular N-cadherin domains, and studied its interaction with fibrinogen, fibrin, and the aforementioned fibrin fragments using two independent methods, ELISA and SPR. The experiments confirmed our hypothesis, revealing that fibrin interacts with sN-cadherin with high affinity. Furthermore, the experiments localized the N-cadherin binding site within the fibrin βN-domains. Notably, the recombinant dimeric (β15-66)2 fragment, corresponding to these domains and mimicking their dimeric arrangement in fibrin, preserved the N-cadherin-binding properties of fibrin. To localize the fibrin binding site within N-cadherin, we performed ELISA and SPR experiments with (β15-66)2 and recombinant N-cadherin fragments representing its individual extracellular domains and combinations thereof. The results obtained indicate that the interaction of fibrin with N-cadherin occurs through the third and fifth extracellular domains of the latter. This is in contrast to our previous study, which revealed that fibrin interacts only with the third extracellular domain of VE-cadherin. In conclusion, our study identified N-cadherin as a novel receptor for fibrin and localized complementary binding sites within both fibrin and N-cadherin. The pathophysiological role of this interaction remains to be established.
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Affiliation(s)
- Sergiy Yakovlev
- Center for Vascular and Inflammatory Diseases and Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201, United States
| | - Nico Tjandra
- Laboratory of Structural Biophysics, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Dudley K. Strickland
- Center for Vascular and Inflammatory Diseases and Departments of Surgery and Physiology, University of Maryland School of Medicine, Baltimore, Maryland 21201, United States
| | - Leonid Medved
- Center for Vascular and Inflammatory Diseases and Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201, United States
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Rathore A, Sharma AK, Murti Y, Bansal S, Kumari V, Snehi V, Kulshreshtha M. Medicinal Plants in the Treatment of Myocardial Infarction Disease: A Systematic Review. Curr Cardiol Rev 2024; 20:15-38. [PMID: 38685783 PMCID: PMC11327834 DOI: 10.2174/011573403x278881240405044328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/14/2024] [Accepted: 02/16/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Myocardial infarction (MI), also referred to as a "heart attack," is brought on by a partial or total interruption of blood supply to the myocardium. Myocardial infarction can be "silent," go undiagnosed, or it can be a catastrophic occurrence that results in hemodynamic decline and untimely death. In recent years, herbal remedies for MI have become effective, secure, and readily accessible. OBJECTIVE The purpose of this review was to examine the medicinal plants and phytochemicals that have been used to treat MI in order to assess the potential contribution of natural substances to the development of herbal MI treatments. METHODOLOGY A literature search was employed to find information utilizing electronic databases, such as Web of Science, Google Scholar, PubMed, Sci Finder, Reaxys, and Cochrane. RESULTS The identification of 140 plants from 12 families led to the abstraction of data on the plant families, parts of the plant employed, chemical contents, extracts, model used, and dose. CONCLUSION The majority of the MI plants, according to the data, belonged to the Fabaceae (11%) and Asteraceae (9%) families, and the most prevalent natural components in plants with MI were flavonoids (43%), glucosides (25%), alkaloids (23%), phenolic acid (19%), saponins (15%), and tannins (12%).
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Affiliation(s)
- Anamika Rathore
- Department of Pharmacology, Rajiv Academy for Pharmacy, Mathura, Uttar Pradesh, India
| | - Anuj Kumar Sharma
- Department of Pharmacology, Rajiv Academy for Pharmacy, Mathura, Uttar Pradesh, India
| | - Yogesh Murti
- G.L.A. University, Mathura, Uttar Pradesh, India
| | - Sonal Bansal
- Department of Pharmaceutical Chemistry, Rajiv Academy for Pharmacy, Mathura, Uttar Pradesh, India
| | - Vibha Kumari
- Department of Pharmaceutics, Rajiv Academy for Pharmacy, Mathura, Uttar Pradesh, India
| | - Varsha Snehi
- Department of Pharmaceutical Chemistry, Rajiv Academy for Pharmacy, Mathura, Uttar Pradesh, India
| | - Mayank Kulshreshtha
- Department of Pharmacology, Rajiv Academy for Pharmacy, Mathura, Uttar Pradesh, India
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Krishnegowda R, Pradhan SN, Belgaumkar VA. A Split-Face Study to Evaluate Efficacy of Autologous Injectable Platelet-Rich Fibrin With Microneedling Against Microneedling With Normal Saline (Placebo Control) in Atrophic Acne Scars. Dermatol Surg 2023; 49:938-942. [PMID: 37584506 DOI: 10.1097/dss.0000000000003893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
BACKGROUND Acne scars cause significant psychosocial stress. Despite a wide armamentarium, there is a constant search for an effective modality. Autologous injectable platelet-rich fibrin (i-PRF) is a promising novel option in the management of atrophic scars. OBJECTIVE To compare efficacy of autologous i-PRF with microneedling against microneedling alone in atrophic acne scars. MATERIALS AND METHODS A split-face prospective interventional study was conducted on 40 patients with atrophic acne scars. Autologous i-PRF and normal saline were injected into each scar on right (study) and left (control) sides, respectively, followed by microneedling on both sides. Four sessions were performed at monthly intervals with follow-up at 2 months. For assessment, Goodman and Baron (GB) scale, physician subjective score, and patient satisfaction scores were used. RESULTS Mean baseline GB grade on each side was 3.45. At 24 weeks, mean GB grade was significantly reduced on the study side (1.47, SD 0.56) than control side (3.33, SD 0.53). Mean patient satisfaction score was significantly higher on the right side (5.95) compared with the left side (5.35). Rolling scars responded the best followed by boxcar and ice-pick scars. CONCLUSION Autologous i-PRF and microneedling act synergistically to improve acne scars.
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Gulati K, Chopra D, Kocak-Oztug NA, Verron E. Fit and forget: The future of dental implant therapy via nanotechnology. Adv Drug Deliv Rev 2023; 199:114900. [PMID: 37263543 DOI: 10.1016/j.addr.2023.114900] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/11/2023] [Accepted: 05/21/2023] [Indexed: 06/03/2023]
Abstract
Unlike orthopedic implants, dental implants require the orchestration of both osseointegration at the bone-implant interface and soft-tissue integration at the transmucosal region in a complex oral micro-environment with ubiquitous pathogenic bacteria. This represents a very challenging environment for early acceptance and long-term survival of dental implants, especially in compromised patient conditions, including aged, smoking and diabetic patients. Enabling advanced local therapy from the surface of titanium-based dental implants via novel nano-engineering strategies is emerging. This includes anodized nano-engineered implants eluting growth factors, antibiotics, therapeutic nanoparticles and biopolymers to achieve maximum localized therapeutic action. An important criterion is balancing bioactivity enhancement and therapy (like bactericidal efficacy) without causing cytotoxicity. Critical research gaps still need to be addressed to enable the clinical translation of these therapeutic dental implants. This review informs the latest developments, challenges and future directions in this domain to enable the successful fabrication of clinically-translatable therapeutic dental implants that would allow for long-term success, even in compromised patient conditions.
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Affiliation(s)
- Karan Gulati
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia.
| | - Divya Chopra
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia
| | - Necla Asli Kocak-Oztug
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia; Istanbul University, Faculty of Dentistry, Department of Periodontology, 34116 Istanbul, Turkey
| | - Elise Verron
- Nantes Université, CNRS, CEISAM, UMR 6230, 44000 Nantes, France
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Malcangi G, Patano A, Palmieri G, Di Pede C, Latini G, Inchingolo AD, Hazballa D, de Ruvo E, Garofoli G, Inchingolo F, Dipalma G, Minetti E, Inchingolo AM. Maxillary Sinus Augmentation Using Autologous Platelet Concentrates (Platelet-Rich Plasma, Platelet-Rich Fibrin, and Concentrated Growth Factor) Combined with Bone Graft: A Systematic Review. Cells 2023; 12:1797. [PMID: 37443831 PMCID: PMC10340512 DOI: 10.3390/cells12131797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND The current review aims to provide an overview of the most recent research on the potentials of concentrated growth factors used in the maxillary sinus lift technique. MATERIALS AND METHODS "PRP", "PRF", "L-PRF", "CGF", "oral surgery", "sticky bone", "sinus lift" were the search terms utilized in the databases Scopus, Web of Science, and Pubmed, with the Boolean operator "AND" and "OR". RESULTS Of these 1534 studies, 22 publications were included for this review. DISCUSSION The autologous growth factors released from platelet concentrates can help to promote bone remodeling and cell proliferation, and the application of platelet concentrates appears to reduce the amount of autologous bone required during regenerative surgery. Many authors agree that growth factors considerably enhance early vascularization in bone grafts and have a significantly positive pro-angiogenic influence in vivo when combined with alloplastic and xenogeneic materials, reducing inflammation and postoperative pain and stimulating the regeneration of injured tissues and accelerating their healing. CONCLUSIONS Even if further studies are still needed, the use of autologous platelet concentrates can improve clinical results where a large elevation of the sinus is needed by improving bone height, thickness and vascularization of surgical sites, and post-operative healing.
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Affiliation(s)
- Giuseppina Malcangi
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Assunta Patano
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Giulia Palmieri
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Chiara Di Pede
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Giulia Latini
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Alessio Danilo Inchingolo
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Denisa Hazballa
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Elisabetta de Ruvo
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Grazia Garofoli
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Francesco Inchingolo
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Gianna Dipalma
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
| | - Elio Minetti
- Department of Biomedical, Surgical, Dental Science, University of Milan, 20161 Milan, Italy;
| | - Angelo Michele Inchingolo
- Interdisciplinary Department of Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.M.); (A.P.); (G.P.); (C.D.P.); (G.L.); (A.D.I.); (D.H.); (E.d.R.); (G.G.); (A.M.I.)
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12
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Wohlgemuth RP, Feitzinger RM, Henricson KE, Dinh DT, Brashear SE, Smith LR. The extracellular matrix of dystrophic mouse diaphragm accounts for the majority of its passive stiffness and is resistant to collagenase digestion. Matrix Biol Plus 2023; 18:100131. [PMID: 36970609 PMCID: PMC10036937 DOI: 10.1016/j.mbplus.2023.100131] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 02/16/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
The healthy skeletal muscle extracellular matrix (ECM) has several functions including providing structural integrity to myofibers, enabling lateral force transmission, and contributing to overall passive mechanical properties. In diseases such as Duchenne Muscular dystrophy, there is accumulation of ECM materials, primarily collagen, which results in fibrosis. Previous studies have shown that fibrotic muscle is often stiffer than healthy muscle, in part due to the increased number and altered architecture of collagen fibers within the ECM. This would imply that the fibrotic matrix is stiffer than the healthy matrix. However, while previous studies have attempted to quantify the extracellular contribution to passive stiffness in muscle, the outcomes are dependent on the type of method used. Thus, the goals of this study were to compare the stiffness of healthy and fibrotic muscle ECM and to demonstrate the efficacy of two methods for quantifying extracellular-based stiffness in muscle, namely decellularization and collagenase digestion. These methods have been demonstrated to remove the muscle fibers or ablate collagen fiber integrity, respectively, while maintaining the contents of the extracellular matrix. Using these methods in conjunction with mechanical testing on wildtype and D2.mdx mice, we found that a majority of passive stiffness in the diaphragm is dependent on the ECM, and the D2.mdx diaphragm ECM is resistant to digestion by bacterial collagenase. We propose that this resistance is due to the increased collagen cross-links and collagen packing density in the ECM of the D2.mdx diaphragm. Taken altogether, while we did not find increased stiffness of the fibrotic ECM, we did observe that the D2.mdx diaphragm conveyed resistance against collagenase digestion. These findings demonstrate how different methods for measuring ECM-based stiffness each have their own limitations and can produce different results.
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Affiliation(s)
- Ross P. Wohlgemuth
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, USA
| | - Ryan M. Feitzinger
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, USA
| | - Kyle E. Henricson
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, USA
- Department of Chemistry and Biochemistry, University of California Santa Cruz, USA
| | - Daryl T. Dinh
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, USA
| | - Sarah E. Brashear
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, USA
| | - Lucas R. Smith
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, USA
- Department of Physical Medicine and Rehabilitation, University of California Davis, USA
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13
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Elayah SA, Younis H, Cui H, Liang X, Sakran KA, Alkadasi B, Al-Moraissi EA, Albadani M, Al-Okad W, Tu J, Na S. Alveolar ridge preservation in post-extraction sockets using concentrated growth factors: a split-mouth, randomized, controlled clinical trial. Front Endocrinol (Lausanne) 2023; 14:1163696. [PMID: 37265705 PMCID: PMC10231034 DOI: 10.3389/fendo.2023.1163696] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/04/2023] [Indexed: 06/03/2023] Open
Abstract
Aim The aim of this clinical trial was to assess the impact of autologous concentrated growth factor (CGF) as a socket-filling material and its ridge preservation properties following the lower third molar extraction. Materials and methods A total of 60 sides of 30 participants who had completely symmetrical bilateral impacted lower third molars were enrolled. The primary outcome variables of the study were bone height and width, bone density, and socket surface area in the coronal section. Cone beam computed tomography images were obtained immediately after surgery and three months after surgery as a temporal measure. Follow-up data were compared to the baseline using paired and unpaired t-tests. Results CGF sites had higher values in height and width when compared to control sites (Buccal wall 32.9 ± 3.5 vs 29.4 ± 4.3 mm, Lingual wall 25.4 ± 3.5 vs 23.1 ± 4 mm, and Alveolar bone width 21.07 ± 1.55vs19.53 ± 1.90 mm, respectively). Bone density showed significantly higher values in CGF sites than in control sites (Coronal half 200 ± 127.3 vs -84.1 ± 121.3 and Apical half 406.5 ± 103 vs 64.2 ± 158.6, respectively). There was a significant difference between both sites in the reduction of the periodontal pockets. Conclusion CGF application following surgical extraction provides an easy, low-cost, and efficient option for alveolar ridge preservation. Thus, the use of CGF by dentists during dental extractions may be encouraged, particularly when alveolar ridge preservation is required. Clinical trial registration TCTR identification, TCTR20221028003.
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Affiliation(s)
- Sadam Ahmed Elayah
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
- State Key Laboratory of Oral Diseases and National Clinical Research Centre for Oral Diseases and Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Ibb University, Ibb, Yemen
| | - Hamza Younis
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
| | - Hao Cui
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
| | - Xiang Liang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
| | - Karim Ahmed Sakran
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Ibb University, Ibb, Yemen
| | - Baleegh Alkadasi
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Ibb University, Ibb, Yemen
| | - Essam Ahmed Al-Moraissi
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Thamar University, Thamar, Yemen
| | - Mohammed Albadani
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Ibb University, Ibb, Yemen
| | - Wafa Al-Okad
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Sana’a University, Sana’a, Yemen
| | - Junbo Tu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
| | - Sijia Na
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
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14
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Sasikanth V, Meganathan B, Rathinavel T, Seshachalam S, Nallappa H, Gopi B. General overview of biopolymers: structure and properties. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Abstract
Biopolymers are synthesized from a biological origin under natural phenomenon especially during their growth cycle, in the form of polymeric substances that portrays excellent properties such as flexibility, tensile strength, steadiness, reusability, and so on. The amalgamated form of two or more biopolymers leads to the formation of “biocomposites” with novel applications. Several mechanisms were identified for the effective production of biopolymers from diverse life forms such as microbial origin plant and animal origin. Based on their origin, biopolymer differs in their structure and functions. Biopolymers are preferred over chemically synthesized polymers due to their biodegradability and their impact on the environment. Biopolymers play a pivotal role in pharmaceutical industries. The biopolymers could be employed for, the administration of medicine as well as regenerative medicine to reach minimal immunogenicity and maximum pharmacological expressivity in a treated individual. Based on their properties biopolymers were exclusively used in medical devices, cosmaceuticals, and confectionaries, it is also used as additives in food industries, bio-sensors, textile industries, and wastewater treatment plants. Ecological support is of utmost concern nowadays due to the ever-expanding ramification over the planet by usage of plastic as packaging material, turning up scientists and researchers to focus on biodegradable biopolymer utilization. The miscibility-structural-property relation between every biopolymer must be focused on to improve the better environment. Specific biopolymers are designed for the betterment of agrarian and commoners of society. Advanced structural modifications, properties of biopolymers, and applications of biopolymers to achieve a greener environment were discussed in this chapter.
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Affiliation(s)
- Vasuki Sasikanth
- Department of Biotechnology , Sona College of Arts and Science , Salem , 636 005 , India
| | | | | | - Sindhu Seshachalam
- Department of Biotechnology , Sona College of Arts and Science , Salem , 636 005 , India
| | - Harini Nallappa
- Department of Biotechnology , Sona College of Arts and Science , Salem , 636 005 , India
| | - Brindha Gopi
- Department of Biotechnology , Sona College of Arts and Science , Salem , 636 005 , India
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15
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Reichsöllner R, Heher P, Hartmann J, Manhartseder S, Singh R, Gulle H, Slezak P. A comparative high-resolution physicochemical analysis of commercially available fibrin sealants: Impact of sealant osmolality on biological performance. J Biomed Mater Res A 2023; 111:488-501. [PMID: 36355631 PMCID: PMC10099741 DOI: 10.1002/jbm.a.37466] [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: 06/12/2022] [Revised: 10/11/2022] [Accepted: 10/23/2022] [Indexed: 11/12/2022]
Abstract
Fibrin sealants are well-established components of the surgical toolbox, especially in procedures that harbor a high risk of perioperative bleeding. Their widespread use as hemostats, sealants or tissue-adhesives in various surgical settings has shown that the choice of the appropriate sealant system affects the clinical outcome. While many studies have compared the hemostatic efficiency of fibrin sealants to that of other natural or synthetic sealants, there is still limited data on how subtle differences in fibrin sealant formulations relate to their biological performance. Here, we performed an in-depth physicochemical and biological characterization of the two most commonly used fibrin sealants in the US and Europe: TISSEEL™ ("FS") and VISTASEAL™/VERASEAL™ ("FS+Osm"). Our chemical analyses demonstrated differences between the two sealants, with lower fibrinogen concentrations and supraphysiological osmolality in the FS+Osm formulation. Rheological testing revealed FS clots have greater clot stiffness, which strongly correlated with network density. Ultrastructural analysis by scanning electron microscopy revealed differences between FS and FS+Osm fibrin networks, the latter characterized by a largely amorphous hydrogel structure in contrast to the physiological fibrillar network of FS. Cytocompatibility experiments with human fibroblasts seeded on FS and FS+Osm fibrin networks, or cultured in presence of sealant extracts, revealed that FS+Osm induced apoptosis, which was not observed with FS. Although differential sealant osmolality and amounts of fibrinogen, as well as the presence of Factor XIII or additives such as antifibrinolytics, may explain the mechanical and structural differences observed between the two fibrin sealants, none of these substances are known to cause apoptosis at the respective concentrations in the sealant formulation. We thus conclude that hyper osmolality in the FS+Osm formulation is the primary trigger of apoptosis-a mechanism that should be evaluated in more detail, as it may affect the cellular wound healing response in situ.
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Affiliation(s)
- Raffael Reichsöllner
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Philipp Heher
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, UK
| | - Jaana Hartmann
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Stefan Manhartseder
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Rahul Singh
- Baxter International Inc., Deerfield, Illinois, USA
| | - Heinz Gulle
- Baxter International Inc., Deerfield, Illinois, USA
| | - Paul Slezak
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
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16
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Hofmann AT, Slezak P, Neumann S, Ferguson J, Redl H, Mittermayr R. Ischemia Impaired Wound Healing Model in the Rat—Demonstrating Its Ability to Test Proangiogenic Factors. Biomedicines 2023; 11:biomedicines11041043. [PMID: 37189661 DOI: 10.3390/biomedicines11041043] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Chronic wounds remain a serious clinical problem with insufficient therapeutic approaches. In this study we investigated the dose dependency of rhVEGF165 in fibrin sealant in both ischemic and non-ischemic excision wounds using our recently developed impaired-wound healing model. An abdominal flap was harvested from the rat with unilateral ligation of the epigastric bundle and consequent unilateral flap ischemia. Two excisional wounds were set in the ischemic and non-ischemic area. Wounds were treated with three different rhVEGF165 doses (10, 50 and 100 ng) mixed with fibrin or fibrin alone. Control animals received no therapy. Laser Doppler imaging (LDI) and immunohistochemistry were performed to verify ischemia and angiogenesis. Wound size was monitored with computed planimetric analysis. LDI revealed insufficient tissue perfusion in all groups. Planimetric analysis showed slower wound healing in the ischemic area in all groups. Wound healing was fastest with fibrin treatment—irrespective of tissue vitality. Lower dose VEGF (10 and 50 ng) led to faster wound healing compared to high-dose VEGF. Immunohistochemistry showed the highest vessel numbers in low-dose VEGF groups. In our previously established model, different rhVEGF165 treatments led to dose-dependent differences in angiogenesis and wound healing, but the fastest wound closure was achieved with fibrin matrix alone.
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17
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Zhao P, Dang Z, Liu M, Guo D, Luo R, Zhang M, Xie F, Zhang X, Wang Y, Pan S, Ma X. Molecular hydrogen promotes wound healing by inducing early epidermal stem cell proliferation and extracellular matrix deposition. Inflamm Regen 2023; 43:22. [PMID: 36973725 PMCID: PMC10044764 DOI: 10.1186/s41232-023-00271-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/26/2023] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND Despite progress in developing wound care strategies, there is currently no treatment that promotes the self-tissue repair capabilities. H2 has been shown to effectively protect cells and tissues from oxidative and inflammatory damage. While comprehensive effects and how H2 functions in wound healing remains unknown, especially for the link between H2 and extracellular matrix (ECM) deposition and epidermal stem cells (EpSCs) activation. METHODS Here, we established a cutaneous aseptic wound model and applied a high concentration of H2 (66% H2) in a treatment chamber. Molecular mechanisms and the effects of healing were evaluated by gene functional enrichment analysis, digital spatial profiler analysis, blood perfusion/oxygen detection assay, in vitro tube formation assay, enzyme-linked immunosorbent assay, immunofluorescent staining, non-targeted metabonomic analysis, flow cytometry, transmission electron microscope, and live-cell imaging. RESULTS We revealed that a high concentration of H2 (66% H2) greatly increased the healing rate (3 times higher than the control group) on day 11 post-wounding. The effect was not dependent on O2 or anti-reactive oxygen species functions. Histological and cellular experiments proved the fast re-epithelialization in the H2 group. ECM components early (3 days post-wounding) deposition were found in the H2 group of the proximal wound, especially for the dermal col-I, epidermal col-III, and dermis-epidermis-junction col-XVII. H2 accelerated early autologous EpSCs proliferation (1-2 days in advance) and then differentiation into myoepithelial cells. These epidermal myoepithelial cells could further contribute to ECM deposition. Other beneficial outcomes include sustained moist healing, greater vascularization, less T-helper-1 and T-helper-17 cell-related systemic inflammation, and better tissue remodelling. CONCLUSION We have discovered a novel pattern of wound healing induced by molecular hydrogen treatment. This is the first time to reveal the direct link between H2 and ECM deposition and EpSCs activation. These H2-induced multiple advantages in healing may be related to the enhancement of cell viability in various cells and the maintenance of mitochondrial functions at a basic level in the biological processes of life.
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Affiliation(s)
- Pengxiang Zhao
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, People's Republic of China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, People's Republic of China
- Beijing International Science and Technology Cooperation Base of Antivirus Drug, Beijing, 100124, People's Republic of China
| | - Zheng Dang
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, People's Republic of China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, People's Republic of China
- Beijing International Science and Technology Cooperation Base of Antivirus Drug, Beijing, 100124, People's Republic of China
| | - Mengyu Liu
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, People's Republic of China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, People's Republic of China
- Beijing International Science and Technology Cooperation Base of Antivirus Drug, Beijing, 100124, People's Republic of China
| | - Dazhi Guo
- Department of Hyperbaric Oxygen, Sixth Medical Center of PLA General Hospital, Beijing, 100048, People's Republic of China
| | - Ruiliu Luo
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, People's Republic of China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, People's Republic of China
- Beijing International Science and Technology Cooperation Base of Antivirus Drug, Beijing, 100124, People's Republic of China
| | - Mingzi Zhang
- Department of Plastic Surgery, Peking Union Medical College Hospital (Dongdan campus), No. 1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, People's Republic of China
| | - Fei Xie
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, People's Republic of China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, People's Republic of China
- Beijing International Science and Technology Cooperation Base of Antivirus Drug, Beijing, 100124, People's Republic of China
| | - Xujuan Zhang
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, People's Republic of China
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, People's Republic of China
- Beijing International Science and Technology Cooperation Base of Antivirus Drug, Beijing, 100124, People's Republic of China
| | - Youbin Wang
- Department of Plastic Surgery, Peking Union Medical College Hospital (Dongdan campus), No. 1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, People's Republic of China
| | - Shuyi Pan
- Department of Hyperbaric Oxygen, Sixth Medical Center of PLA General Hospital, Beijing, 100048, People's Republic of China
| | - Xuemei Ma
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, People's Republic of China.
- Beijing Molecular Hydrogen Research Center, Beijing, 100124, People's Republic of China.
- Beijing International Science and Technology Cooperation Base of Antivirus Drug, Beijing, 100124, People's Republic of China.
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18
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Emami S, Ebrahimi M. Bioactive wound powders as wound healing dressings and drug delivery systems. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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19
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Liu T, Lu Y, Zhan R, Qian W, Luo G. Nanomaterials and nanomaterials-based drug delivery to promote cutaneous wound healing. Adv Drug Deliv Rev 2023; 193:114670. [PMID: 36538990 DOI: 10.1016/j.addr.2022.114670] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/24/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Various factors could damage the structure and integrity of skin to cause wounds. Nonhealing or chronic wounds seriously affect the well-being of patients and bring heavy burdens to the society. The past few decades have witnessed application of numerous nanomaterials to promote wound healing. Owing to the unique physicochemical characteristics at nanoscale, nanomaterials-based therapy has been regarded as a potential approach to promote wound healing. In this review, we first overview the wound categories, wound healing process and critical influencing factors. Then applications of nanomaterials with intrinsic therapeutic effect and nanomaterials-based drug delivery systems to promote wound healing are addressed in detail. Finally, current limitations and future perspectives of nanomaterials in wound healing are discussed.
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Affiliation(s)
- Tengfei Liu
- Institute of Burn Research, Southwest Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Yifei Lu
- Institute of Burn Research, Southwest Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Rixing Zhan
- Institute of Burn Research, Southwest Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Wei Qian
- Institute of Burn Research, Southwest Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University (Third Military Medical University), Chongqing 400038, China
| | - Gaoxing Luo
- Institute of Burn Research, Southwest Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University (Third Military Medical University), Chongqing 400038, China.
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20
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Browning JL, Bhawan J, Tseng A, Crossland N, Bujor AM, Akassoglou K, Assassi S, Skaug B, Ho J. Extensive and Persistent Extravascular Dermal Fibrin Deposition Characterizes Systemic Sclerosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.16.523256. [PMID: 36711912 PMCID: PMC9882194 DOI: 10.1101/2023.01.16.523256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by progressive multiorgan fibrosis. While the cause of SSc remains unknown, a perturbed vasculature is considered a critical early step in the pathogenesis. Using fibrinogen as a marker of vascular leakage, we found extensive extravascular fibrinogen deposition in the dermis of both limited and diffuse systemic sclerosis disease, and it was present in both early and late-stage patients. Based on a timed series of excision wounds, retention on the fibrin deposit of the splice variant domain, fibrinogen αEC, indicated a recent event, while fibrin networks lacking the αEC domain were older. Application of this timing tool to SSc revealed considerable heterogeneity in αEC domain distribution providing unique insight into disease activity. Intriguingly, the fibrinogen-αEC domain also accumulated in macrophages. These observations indicate that systemic sclerosis is characterized by ongoing vascular leakage resulting in extensive interstitial fibrin deposition that is either continually replenished and/or there is impaired fibrin clearance. Unresolved fibrin deposition might then incite chronic tissue remodeling.
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Affiliation(s)
- Jeffrey L Browning
- Department of Microbiology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- Department of Rheumatology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
| | - Jag Bhawan
- Department of Dermatopathology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- Department of Pathology and Laboratory Medicine, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
| | - Anna Tseng
- Department of Pathology and Laboratory Medicine, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA
| | - Nicholas Crossland
- Department of Pathology and Laboratory Medicine, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA
| | - Andreea M Bujor
- Department of Rheumatology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
| | - Katerina Akassoglou
- Gladstone Institute of Neurological Disease San Francisco California USA
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA
| | - Shervin Assassi
- Division of Rheumatology, University of Texas Health Science Center, Houston, TX
| | - Brian Skaug
- Division of Rheumatology, University of Texas Health Science Center, Houston, TX
| | - Jonathan Ho
- Department of Dermatopathology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- Section Dermatology University of the West Indies, Mona Jamaica
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21
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Sanz-Horta R, Matesanz A, Gallardo A, Reinecke H, Jorcano JL, Acedo P, Velasco D, Elvira C. Technological advances in fibrin for tissue engineering. J Tissue Eng 2023; 14:20417314231190288. [PMID: 37588339 PMCID: PMC10426312 DOI: 10.1177/20417314231190288] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/11/2023] [Indexed: 08/18/2023] Open
Abstract
Fibrin is a promising natural polymer that is widely used for diverse applications, such as hemostatic glue, carrier for drug and cell delivery, and matrix for tissue engineering. Despite the significant advances in the use of fibrin for bioengineering and biomedical applications, some of its characteristics must be improved for suitability for general use. For example, fibrin hydrogels tend to shrink and degrade quickly after polymerization, particularly when they contain embedded cells. In addition, their poor mechanical properties and batch-to-batch variability affect their handling, long-term stability, standardization, and reliability. One of the most widely used approaches to improve their properties has been modification of the structure and composition of fibrin hydrogels. In this review, recent advances in composite fibrin scaffolds, chemically modified fibrin hydrogels, interpenetrated polymer network (IPN) hydrogels composed of fibrin and other synthetic or natural polymers are critically reviewed, focusing on their use for tissue engineering.
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Affiliation(s)
- Raúl Sanz-Horta
- Department of Applied Macromolecular Chemistry, Institute of Polymer Science and Technology, Spanish National Research Council (ICTP-CSIC), Madrid, Spain
| | - Ana Matesanz
- Department of Bioengineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
- Department of Electronic Technology, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
| | - Alberto Gallardo
- Department of Applied Macromolecular Chemistry, Institute of Polymer Science and Technology, Spanish National Research Council (ICTP-CSIC), Madrid, Spain
| | - Helmut Reinecke
- Department of Applied Macromolecular Chemistry, Institute of Polymer Science and Technology, Spanish National Research Council (ICTP-CSIC), Madrid, Spain
| | - José Luis Jorcano
- Department of Bioengineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Pablo Acedo
- Department of Electronic Technology, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
| | - Diego Velasco
- Department of Bioengineering, Universidad Carlos III de Madrid (UC3M), Madrid, Spain
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
- Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Carlos Elvira
- Department of Applied Macromolecular Chemistry, Institute of Polymer Science and Technology, Spanish National Research Council (ICTP-CSIC), Madrid, Spain
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22
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Lu H, Xiao L, Wang W, Li X, Ma Y, Zhang Y, Wang X. Fibrinolysis Regulation: A Promising Approach to Promote Osteogenesis. TISSUE ENGINEERING. PART B, REVIEWS 2022; 28:1192-1208. [PMID: 35442086 DOI: 10.1089/ten.teb.2021.0222] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Soon after bone fracture, the initiation of the coagulation cascade results in the formation of a blood clot, which acts as a natural material to facilitate cell migration and osteogenic differentiation at the fracture site. The existence of hematoma is important in early stage of bone healing, but the persistence of hematoma is considered harmful for bone regeneration. Fibrinolysis is recently regarded as a period of critical transition in angiogenic-osteogenic coupling, it thereby is vital for the complete healing of the bone. Moreover, the enhanced fibrinolysis is proposed to boost bone regeneration through promoting the formation of blood vessels, and fibrinolysis system as well as the products of fibrinolysis also play crucial roles in the bone healing process. Therefore, the purpose of this review is to elucidate the fibrinolysis-derived effects on osteogenesis and summarize the potential approaches-improving bone healing by regulating fibrinolysis, with the purpose to further understand the integral roles of fibrinolysis in bone regeneration and to provide theoretical knowledge for potential fibrinolysis-related osteogenesis strategies. Impact statement Fibrinolysis emerging as a new and viable therapeutic intervention to be contained within osteogenesis strategies, however to now, there have been no review articles which collates the information between fibrinolysis and osteogenesis. This review, therefore, focusses on the effects that fibrinolysis exerts on bone healing, with a purpose to provide theoretical reference to develop new strategies to modulate fibrinolysis to accelerate fibrinolysis thus enhancing bone healing.
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Affiliation(s)
- Haiping Lu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Lan Xiao
- School of Mechanical, Medical and Process Engineering, Center for Biomedical Technologies, Queensland University of Technology, Brisbane, Queensland, Australia.,The Australia-China Center for Tissue Engineering and Regenerative Medicine, Kelvin Grove, Brisbane, Queensland, Australia
| | - Weiqun Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Xuyan Li
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Yaping Ma
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Yi Zhang
- Department of Hygiene Toxicology, School of Public Health, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xin Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.,School of Mechanical, Medical and Process Engineering, Center for Biomedical Technologies, Queensland University of Technology, Brisbane, Queensland, Australia.,The Australia-China Center for Tissue Engineering and Regenerative Medicine, Kelvin Grove, Brisbane, Queensland, Australia
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23
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Dardari D, Potier L, Sultan A, Francois M, M’Bemba J, Bouillet B, Chaillous L, Kessler L, Carlier A, Jalek A, Sbaa A, Orlando L, Bobony E, Detournay B, Kjartansson H, Bjorg Arsaelsdottir R, Baldursson BT, Charpentier G. Intact Fish Skin Graft vs. Standard of Care in Patients with Neuroischaemic Diabetic Foot Ulcers (KereFish Study): An International, Multicentre, Double-Blind, Randomised, Controlled Trial Study Design and Rationale. Medicina (B Aires) 2022; 58:medicina58121775. [PMID: 36556977 PMCID: PMC9786154 DOI: 10.3390/medicina58121775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/06/2022] [Accepted: 11/24/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Cell and/or tissue-based wound care products have slowly advanced in the treatment of non-healing ulcers, however, few studies have evaluated the effectiveness of these devices in the management of severe diabetic foot ulcers. METHOD This study (KereFish) is part of a multi-national, multi-centre, randomised, controlled clinical investigation (Odin) with patients suffering from deep diabetic wounds, allowing peripheral artery disease as evaluated by an ankle brachial index equal or higher than 0.6. The study has parallel treatment groups: Group 1 treatment with Kerecis® Omega3 Wound™ versus Group 2 treatment with standard of care. The primary objective is to test the hypothesis that a larger number of severe diabetic ulcers and amputation wounds, including those with moderate arterial disease, will heal in 16 weeks when treated with Kerecis® Omega3 Wound™ than with standard of care. CONCLUSION This study has received the ethics committee approval of each participating country. Inclusion of participants began in March 2020 and ended in July 2022. The first results will be presented in March 2023. The study is registered in ClinicalTrials.gov as Identifier: NCT04537520.
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Affiliation(s)
- Dured Dardari
- Diabetic Foot Unit, Centre Hospitalier sud Francilien Corbeil Essonnes, 91100 Corbeil-Essonnes, France
- LBEPS, IRBA, Université Evry Paris Saclay, 91025 Evry, France
- Correspondence: ; Tel.: +33-6-61-54-28-09
| | - Louis Potier
- Diabetology Department, CHU Bichat—Claude Bernard, 75018 Paris, France
- Institut Necker-Enfants Malades, Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, 75006 Paris, France
| | - Ariane Sultan
- Diabetology Nutrition Department, CHU Montpelier, Université de Montpellier, 34090 Montpellier, France
- Inserm, CNRS, Phymedexp, CHU de Montpellier, 34090 Montpellier, France
| | | | | | - Benjamin Bouillet
- Department of Endocrinology-Diabetology, Dijon University Hospital, 21000 Dijon, France
- INSERM Unit, LNC-UMR 1231, University of Burgundy, 21078 Dijon, France
| | - Lucy Chaillous
- Department of Endocrinology, Metabolic Diseases and Nutrition, University Hospital of Nante, 44000 Nantes, France
| | - Laurence Kessler
- Department of Diabetology, CHU Strasbourg, 67000 Strasbourg, France
| | - Aurelie Carlier
- Diabetology Department, CHU Bichat—Claude Bernard, 75018 Paris, France
| | - Abdulkader Jalek
- Diabetology Nutrition Department, CHU Montpelier, Université de Montpellier, 34090 Montpellier, France
| | - Ayoub Sbaa
- Department of Diabetology, CHU Strasbourg, 67000 Strasbourg, France
| | - Laurent Orlando
- CERITD (Center for Study and Research for Improvement of the Treatment of Diabetes), Bioparc-Genopole Evry-Corbeil, 91042 Evry, France
| | - Elise Bobony
- CERITD (Center for Study and Research for Improvement of the Treatment of Diabetes), Bioparc-Genopole Evry-Corbeil, 91042 Evry, France
| | - Bruno Detournay
- CEMKA, 43 boulevard du Maréchal Joffre, 92340 Bourg-la-Reine, France
| | | | | | | | - Guillaume Charpentier
- CERITD (Center for Study and Research for Improvement of the Treatment of Diabetes), Bioparc-Genopole Evry-Corbeil, 91042 Evry, France
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Zhai H, Jin X, Minnick G, Rosenbohm J, Hafiz MAH, Yang R, Meng F. Spatially Guided Construction of Multilayered Epidermal Models Recapturing Structural Hierarchy and Cell-Cell Junctions. SMALL SCIENCE 2022; 2:2200051. [PMID: 36590765 PMCID: PMC9799093 DOI: 10.1002/smsc.202200051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A current challenge in three-dimensional (3D) bioprinting of skin equivalents is to recreate the distinct basal and suprabasal layers and to promote their direct interactions. Such a structural arrangement is essential to establish 3D stratified epidermis disease models, such as for the autoimmune skin disease pemphigus vulgaris (PV), which targets the cell-cell junctions at the interface of the basal and suprabasal layers. Inspired by epithelial regeneration in wound healing, we develop a method that combines 3D bioprinting and spatially guided self-reorganization of keratinocytes to recapture the fine structural hierarchy that lies in the deep layers of the epidermis. Here, keratinocyte-laden fibrin hydrogels are bioprinted to create geographical cues, guiding dynamic self-reorganization of cells through collective migration, keratinocyte differentiation and vertical expansion. This process results in a region of self-organized multilayers (SOMs) that contain the basal to suprabasal transition, marked by the expressed levels of different types of keratins that indicate differentiation. Finally, we demonstrate the reconstructed skin tissue as an in vitro platform to study the pathogenic effects of PV and observe a significant difference in cell-cell junction dissociation from PV antibodies in different epidermis layers, indicating their applications in the preclinical test of possible therapies.
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Affiliation(s)
- Haiwei Zhai
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Xiaowei Jin
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Grayson Minnick
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Jordan Rosenbohm
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | | | - Ruiguo Yang
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
- Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Fanben Meng
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
- Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
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25
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Platelet-rich plasma: a comparative and economical therapy for wound healing and tissue regeneration. Cell Tissue Bank 2022; 24:285-306. [PMID: 36222966 PMCID: PMC9555256 DOI: 10.1007/s10561-022-10039-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 09/10/2022] [Indexed: 11/17/2022]
Abstract
Rise in the incidences of chronic degenerative diseases with aging makes wound care a socio-economic burden and unceasingly necessitates a novel, economical, and efficient wound healing treatment. Platelets have a crucial role in hemostasis and thrombosis by modulating distinct mechanistic phases of wound healing, such as promoting and stabilizing the clot. Platelet-rich plasma (PRP) contains a high concentration of platelets than naïve plasma and has an autologous origin with no immunogenic adverse reactions. As a consequence, PRP has gained significant attention as a therapeutic to augment the healing process. Since the past few decades, a robust volume of research and clinical trials have been performed to exploit extensive role of PRP in wound healing/tissue regeneration. Despite these rigorous studies and their application in diversified medical fields, efficacy of PRP-based therapies is continuously questioned owing to the paucity of large samplesizes, controlled clinical trials, and standard protocols. This review systematically delineates the process of wound healing and involvement of platelets in tissue repair mechanisms. Additionally, emphasis is laid on PRP, its preparation methods, handling, classification,application in wound healing, and PRP as regenerative therapeutics combined with biomaterials and mesenchymal stem cells (MSCs).
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26
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Pignatelli C, Campo F, Neroni A, Piemonti L, Citro A. Bioengineering the Vascularized Endocrine Pancreas: A Fine-Tuned Interplay Between Vascularization, Extracellular-Matrix-Based Scaffold Architecture, and Insulin-Producing Cells. Transpl Int 2022; 35:10555. [PMID: 36090775 PMCID: PMC9452644 DOI: 10.3389/ti.2022.10555] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022]
Abstract
Intrahepatic islet transplantation is a promising β-cell replacement strategy for the treatment of type 1 diabetes. Instant blood-mediated inflammatory reactions, acute inflammatory storm, and graft revascularization delay limit islet engraftment in the peri-transplant phase, hampering the success rate of the procedure. Growing evidence has demonstrated that islet engraftment efficiency may take advantage of several bioengineering approaches aimed to recreate both vascular and endocrine compartments either ex vivo or in vivo. To this end, endocrine pancreas bioengineering is an emerging field in β-cell replacement, which might provide endocrine cells with all the building blocks (vascularization, ECM composition, or micro/macro-architecture) useful for their successful engraftment and function in vivo. Studies on reshaping either the endocrine cellular composition or the islet microenvironment have been largely performed, focusing on a single building block element, without, however, grasping that their synergistic effect is indispensable for correct endocrine function. Herein, the review focuses on the minimum building blocks that an ideal vascularized endocrine scaffold should have to resemble the endocrine niche architecture, composition, and function to foster functional connections between the vascular and endocrine compartments. Additionally, this review highlights the possibility of designing bioengineered scaffolds integrating alternative endocrine sources to overcome donor organ shortages and the possibility of combining novel immune-preserving strategies for long-term graft function.
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Affiliation(s)
- Cataldo Pignatelli
- San Raffaele Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesco Campo
- San Raffaele Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Alessia Neroni
- San Raffaele Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Lorenzo Piemonti
- San Raffaele Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Antonio Citro
- San Raffaele Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
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The Role of the Extracellular Matrix (ECM) in Wound Healing: A Review. Biomimetics (Basel) 2022; 7:biomimetics7030087. [PMID: 35892357 PMCID: PMC9326521 DOI: 10.3390/biomimetics7030087] [Citation(s) in RCA: 84] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/23/2022] [Accepted: 06/29/2022] [Indexed: 12/27/2022] Open
Abstract
The extracellular matrix (ECM) is a 3-dimensional structure and an essential component in all human tissues. It is comprised of varying proteins, including collagens, elastin, and smaller quantities of structural proteins. Studies have demonstrated the ECM aids in cellular adherence, tissue anchoring, cellular signaling, and recruitment of cells. During times of integumentary injury or damage, either acute or chronic, the ECM is damaged. Through a series of overlapping events called the wound healing phases—hemostasis, inflammation, proliferation, and remodeling—the ECM is synthesized and ideally returned to its native state. This article synthesizes current and historical literature to demonstrate the involvement of the ECM in the varying phases of the wound healing cascade.
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Tugcu B, Bayraktar H, Ekinci C, Kucukodaci Z, Tunali M, Nuhoglu F. The effect of platelet-rich fibrin on wound healing following strabismus surgery. Cutan Ocul Toxicol 2022; 41:168-173. [PMID: 35694975 DOI: 10.1080/15569527.2022.2081173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
PURPOSE To investigate the effect of platelet-rich fibrin (PRF) on post-operative wound healing following strabismus surgery in a rabbit model. METHODS Nine New Zealand white rabbits were involved in the study. One of these nine rabbits was kept in control without having any operation. Both eyes of eight rabbits underwent superior rectus muscle (SRM) resection. After resection of SRM, PRF was applied to SRM of the right eyes. In the left eye, SRM was not wrapped with PRF and served as a control. The rabbits were sacrificed and enucleated 6 weeks after the surgery. Inflammation and vascular proliferation were assessed by staining with haematoxylin-eosin. Scar and fibrosis were examined by the Masson trichrome staining. Immunohistochemical staining was performed for a vascular endothelial growth factor (VEGF) and alpha-smooth muscle actin (α-SMA). RESULTS There was no significant difference in terms of inflammation (p = 0.535), vascularization (p = 0.602), and fibrosis (p = 0.745) between the eyes. Immunohistochemical staining for VEGF demonstrated no significant difference (p = 0.745). However, significant staining for α-SMA was detected in PRF-treated eyes compared with control eyes (p = 0.037). CONCLUSION Consistent with the hypothesis that PRF facilitates wound healing as a biocatalyst, there was only a significant difference for α-SMA related to myofibroblast activity which is important for wound remodelling. Future comprehensive studies are needed to extend these results.
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Affiliation(s)
- Betul Tugcu
- Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
| | - Havvanur Bayraktar
- Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
| | - Cansu Ekinci
- Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
| | - Zafer Kucukodaci
- Department of Pathology, Sultan Abdülhamid Han Training and Research Hospital, Istanbul, Turkey
| | - Mustafa Tunali
- Department of Periodontology, Bezmialem Vakif University, Istanbul, Turkey
| | - Fadime Nuhoglu
- Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
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Russo R, Carrizzo A, Barbato A, Rasile BR, Pentangelo P, Ceccaroni A, Marra C, Alfano C, Losco L. Clinical Evaluation of the Efficacy and Tolerability of Rigenase ® and Polyhexanide (Fitostimoline ® Plus) vs. Hyaluronic Acid and Silver Sulfadiazine (Connettivina ® Bio Plus) for the Treatment of Acute Skin Wounds: A Randomized Trial. J Clin Med 2022; 11:2518. [PMID: 35566643 PMCID: PMC9105357 DOI: 10.3390/jcm11092518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/13/2022] [Accepted: 04/27/2022] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES Compare the efficacy and tolerability of Connettivina® Bio Plus (Group A) gauze and cream, and Fitostimoline® Plus (Group B) gauze and cream for the treatment of acute superficial skin lesions. DESIGN Single-center, parallel, randomized trial. A block randomization method was used. SETTING University of Salerno-AOU San Giovanni di Dio e Ruggi d'Aragona. PARTICIPANTS Sixty patients were enrolled. All patients fulfilled the study requirements. INTERVENTION One application of the study drugs every 24 h, and a six-week observation period. MAIN OUTCOME MEASURES Efficacy and tolerability of the study drugs. RESULTS In total, 60 patients (Group A, n = 30; Group B, n = 30) were randomized; mean age was 58.5 ± 15.8 years. All patients were included in the outcome analysis. Total wound healing was achieved in 17 patients undergoing treatment with Connettivina® Bio Plus and 28 patients undergoing treatment with Fitostimoline® Plus. The greater effectiveness of the latter was significant (p = 0.00104). In Group B, a significantly greater degree of effectiveness was observed in reducing the fibrin in the wound bed (p = 0.04746). Complications or unexpected events were not observed. CONCLUSIONS Both Connettivina® Bio Plus and Fitostimoline® Plus are secure and effective for treating acute superficial skin lesions. Fitostimoline® Plus was more effective than Connettivina® Bio Plus in wound healing of acute superficial skin lesions, especially if fibrin had been observed in the wound bed.
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Affiliation(s)
- Raffaele Russo
- Plastic Surgery Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy; (R.R.); (A.C.); (B.R.R.); (P.P.); (A.C.); (C.M.)
| | - Albino Carrizzo
- Plastic Surgery Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy; (R.R.); (A.C.); (B.R.R.); (P.P.); (A.C.); (C.M.)
- Vascular Physiopathology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy
| | - Alfonso Barbato
- U.O.C. di Chirurgia Plastica Ricostruttiva, Azienda Ospedaliera Universitaria OO.RR. San Giovanni di Dio e Ruggi d’Aragona, Via S. Leonardo 1, 84131 Salerno, Italy;
| | - Barbara Rosa Rasile
- Plastic Surgery Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy; (R.R.); (A.C.); (B.R.R.); (P.P.); (A.C.); (C.M.)
| | - Paola Pentangelo
- Plastic Surgery Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy; (R.R.); (A.C.); (B.R.R.); (P.P.); (A.C.); (C.M.)
| | - Alessandra Ceccaroni
- Plastic Surgery Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy; (R.R.); (A.C.); (B.R.R.); (P.P.); (A.C.); (C.M.)
| | - Caterina Marra
- Plastic Surgery Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy; (R.R.); (A.C.); (B.R.R.); (P.P.); (A.C.); (C.M.)
| | - Carmine Alfano
- Plastic Surgery Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy; (R.R.); (A.C.); (B.R.R.); (P.P.); (A.C.); (C.M.)
| | - Luigi Losco
- Plastic Surgery Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy; (R.R.); (A.C.); (B.R.R.); (P.P.); (A.C.); (C.M.)
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Droplet-based bioprinting enables the fabrication of cell–hydrogel–microfibre composite tissue precursors. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00192-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractComposites offer the option of coupling the individual benefits of their constituents to achieve unique material properties, which can be of extra value in many tissue engineering applications. Strategies combining hydrogels with fibre-based scaffolds can create tissue constructs with enhanced biological and structural functionality. However, developing efficient and scalable approaches to manufacture such composites is challenging. Here, we use a droplet-based bioprinting system called reactive jet impingement (ReJI) to integrate a cell-laden hydrogel with a microfibrous mesh. This system uses microvalves connected to different bioink reservoirs and directed to continuously jet bioink droplets at one another in mid-air, where the droplets react and form a hydrogel that lands on a microfibrous mesh. Cell–hydrogel–fibre composites are produced by embedding human dermal fibroblasts at two different concentrations (5 × 106 and 30 × 106 cells/mL) in a collagen–alginate–fibrin hydrogel matrix and bioprinted onto a fibre-based substrate. Our results show that both types of cell–hydrogel–microfibre composite maintain high cell viability and promote cell–cell and cell–biomaterial interactions. The lower fibroblast density triggers cell proliferation, whereas the higher fibroblast density facilitates faster cellular organisation and infiltration into the microfibres. Additionally, the fibrous component of the composite is characterised by high swelling properties and the quick release of calcium ions. The data indicate that the created composite constructs offer an efficient way to create highly functional tissue precursors for laminar tissue engineering, particularly for wound healing and skin tissue engineering applications.
Graphic abstract
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31
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Salgado-Peralvo AO, Mateos-Moreno MV, Uribarri A, Kewalramani N, Peña-Cardelles JF, Velasco-Ortega E. Treatment of oroantral communication with Platelet-Rich Fibrin: A systematic review. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e367-e375. [PMID: 35318134 DOI: 10.1016/j.jormas.2022.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 03/15/2022] [Indexed: 12/19/2022]
Abstract
BACKGROUND Oroantral communication (OAC) is the opening between the maxillary sinus and the oral cavity, which constitutes a gate for the mucosal infection in the maxillary sinus. On the other hand, an OAF develops when the OAC does not close spontaneously, remains manifest and is epithelialized. Several methods have been proposed to solve these situations, however, they are associated with increased postoperative morbidity and/or higher associated costs and require some experience of the surgeon to perform them. To overcome these disadvantages, the use of Platelet-Rich Fibrin (PRF) is proposed. The present study aims to perform a systematic review of the literature, collecting cases in which PRF was used in the treatment of OACs/OAFs. MATERIALS AND METHODS An electronic search of the MEDLINE database (via PubMed) and Web of Science was performed using the following MeSH terms (Medical Subjects Headings): (oroantral communication OR oroantral fistula OR buccosinusal communication) AND (platelet-rich fibrin OR prf OR fibrin mesh). The criteria used were those described by the PRISMA® Statement. The search was not time-restricted and was updated to April 2021. RESULTS After searching, 11 articles were included that met the established criteria. In these, PRF was used alone or in combination with bi- or trilaminar techniques achieving complete resolution in 100% of cases (n = 116). CONCLUSIONS With the limitations of this study, it can be established that PRF can be used alone for the treatment of OACs/OAFs up to 5 mm and, in larger defects, it is advisable to combine it with bi- or trilaminar techniques. PRF is an effective therapeutic option, with minimal associated postoperative morbidity compared to other techniques and allows the position of the mucogingival junction to be preserved. Its combination with bone grafting improves the starting point before the replacement of the missing tooth with a dental implant.
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Affiliation(s)
| | - María-Victoria Mateos-Moreno
- Department of Dental Clinical Specialties, Faculty of Dentistry, Complutense University of Madrid, Madrid 28040, Spain
| | - Andrea Uribarri
- Department of Basic Health Sciences, Rey Juan Carlos University, Madrid 28922, Spain
| | - Naresh Kewalramani
- Department of Nursery and Stomatology, Rey Juan Carlos University, Madrid 28922, Spain
| | | | - Eugenio Velasco-Ortega
- Department of Stomatology, Faculty of Dentistry, University of Seville, Seville 41009, Spain
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Wang Z, Qi F, Luo H, Xu G, Wang D. Inflammatory Microenvironment of Skin Wounds. Front Immunol 2022; 13:789274. [PMID: 35300324 PMCID: PMC8920979 DOI: 10.3389/fimmu.2022.789274] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 02/09/2022] [Indexed: 02/06/2023] Open
Abstract
Wound healing is a dynamic and highly regulated process that can be separated into three overlapping and interdependent phases: inflammation, proliferation, and remodelling. This review focuses on the inflammation stage, as it is the key stage of wound healing and plays a vital role in the local immune response and determines the progression of wound healing. Inflammatory cells, the main effector cells of the inflammatory response, have been widely studied, but little attention has been paid to the immunomodulatory effects of wound healing in non-inflammatory cells and the extracellular matrix. In this review, we attempt to deepen our understanding of the wound-healing microenvironment in the inflammatory stage by focusing on the interactions between cells and the extracellular matrix, as well as their role in regulating the immune response during the inflammatory stage. We hope our findings will provide new ideas for promoting tissue regeneration through immune regulation.
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Affiliation(s)
- Zhen Wang
- Department of Plastic Surgery and Burns, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Fang Qi
- Department of Plastic Surgery and Burns, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Han Luo
- Department of Plastic Surgery and Burns, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Guangchao Xu
- Department of Plastic Surgery and Burns, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
| | - Dali Wang
- Department of Plastic Surgery and Burns, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
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Robinson S, Parigoris E, Chang J, Hecker L, Takayama S. Contracting scars from fibrin drops. Integr Biol (Camb) 2022; 14:1-12. [PMID: 35184163 PMCID: PMC8934703 DOI: 10.1093/intbio/zyac001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Indexed: 11/13/2022]
Abstract
This paper describes a microscale fibroplasia and contraction model that is based on fibrin-embedded lung fibroblasts and provides a convenient visual readout of fibrosis. Cell-laden fibrin microgel drops are formed by aqueous two-phase microprinting. The cells deposit extracellular matrix (ECM) molecules such as collagen while fibrin is gradually degraded. Ultimately, the cells contract the collagen-rich matrix to form a compact cell-ECM spheroid. The size of the spheroid provides the visual readout of the extent of fibroplasia. Stimulation of this wound-healing model with the profibrotic cytokine TGF-β1 leads to an excessive scar formation response that manifests as increased collagen production and larger cell-ECM spheroids. Addition of drugs also shifted the scarring profile: the FDA-approved fibrosis drugs (nintedanib and pirfenidone) and a PAI-1 inhibitor (TM5275) significantly reduced cell-ECM spheroid size. Not only is the assay useful for evaluation of antifibrotic drug effects, it is relatively sensitive; one of the few in vitro fibroplasia assays that can detect pirfenidone effects at submillimolar concentrations. Although this paper focuses on lung fibrosis, the approach opens opportunities for studying a broad range of fibrotic diseases and for evaluating antifibrotic therapeutics.
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Affiliation(s)
| | - Eric Parigoris
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA, USA,The Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
| | - Jonathan Chang
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA, USA,The Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
| | - Louise Hecker
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Shuichi Takayama
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA, USA,The Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
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Immunomodulation of Skin Repair: Cell-Based Therapeutic Strategies for Skin Replacement (A Comprehensive Review). Biomedicines 2022; 10:biomedicines10010118. [PMID: 35052797 PMCID: PMC8773777 DOI: 10.3390/biomedicines10010118] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 12/12/2022] Open
Abstract
The immune system has a crucial role in skin wound healing and the application of specific cell-laden immunomodulating biomaterials emerged as a possible treatment option to drive skin tissue regeneration. Cell-laden tissue-engineered skin substitutes have the ability to activate immune pathways, even in the absence of other immune-stimulating signals. In particular, mesenchymal stem cells with their immunomodulatory properties can create a specific immune microenvironment to reduce inflammation, scarring, and support skin regeneration. This review presents an overview of current wound care techniques including skin tissue engineering and biomaterials as a novel and promising approach. We highlight the plasticity and different roles of immune cells, in particular macrophages during various stages of skin wound healing. These aspects are pivotal to promote the regeneration of nonhealing wounds such as ulcers in diabetic patients. We believe that a better understanding of the intrinsic immunomodulatory features of stem cells in implantable skin substitutes will lead to new translational opportunities. This, in turn, will improve skin tissue engineering and regenerative medicine applications.
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35
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Immuno-histopathologic evaluation of mineralized plasmatic matrix in the management of horizontal ridge defects in a canine model (a split-mouth comparative study). Odontology 2022; 110:523-534. [PMID: 34988770 PMCID: PMC9170670 DOI: 10.1007/s10266-021-00684-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 12/23/2021] [Indexed: 11/17/2022]
Abstract
Our research aimed to investigate the effect of combining biphasic calcium phosphate (BCP) alloplast with mineralized plasmatic matrix (MPM) as compared with platelet-rich fibrin (PRF) on the quality and quantity of bone formation and maturation at surgically created horizontal critical-sized ridge defects (HRDs) in a canine model. We used a split-mouth design using the third and fourth mandibular premolars of the mongrel dogs. Twelve defects on the left side (experimental group, I) were managed with MPM composite mixed with BCP alloplast, MPM compact layer. On the right side (control group, II), another 12 defects were managed with PRF mixed with BCP alloplast, followed by the application of PRF compact strips. Finally, both were covered by a collagen membrane. Dogs were euthanized at 4, 8, and 12 weeks, and the studied defects were processed to evaluate treatment outcome, including mean percentage of bone surface area, collagen percentage, and osteopontin (OPN) immunoreaction. Our results revealed that the mean percentage of bone surface area was significantly increased in the experimental group treated with MPM at all time intervals as compared with the PRF group. Decreased collagen percentage and increased OPN immunoreactivity showed significant results in the MPM group as compared with PRF at 4 and 8 weeks postoperatively, respectively. In conclusion, MPM accelerates the formation of superior new bone quality when used in the treatment of HRDs.
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Hayashi MAF, Campeiro JD, Yonamine CM. Revisiting the potential of South American rattlesnake Crotalus durissus terrificus toxins as therapeutic, theranostic and/or biotechnological agents. Toxicon 2021; 206:1-13. [PMID: 34896407 DOI: 10.1016/j.toxicon.2021.12.005] [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: 09/09/2021] [Revised: 11/10/2021] [Accepted: 12/08/2021] [Indexed: 02/07/2023]
Abstract
The potential biotechnological and biomedical applications of the animal venom components are widely recognized. Indeed, many components have been used either as drugs or as templates/prototypes for the development of innovative pharmaceutical drugs, among which many are still used for the treatment of human diseases. A specific South American rattlesnake, named Crotalus durissus terrificus, shows a venom composition relatively simpler compared to any viper or other snake species belonging to the Crotalus genus, although presenting a set of toxins with high potential for the treatment of several still unmet human therapeutic needs, as reviewed in this work. In addition to the main toxin named crotoxin, which is under clinical trials studies for antitumoral therapy and which has also anti-inflammatory and immunosuppressive activities, other toxins from the C. d. terrificus venom are also being studied, aiming for a wide variety of therapeutic applications, including as antinociceptive, anti-inflammatory, antimicrobial, antifungal, antitumoral or antiparasitic agent, or as modulator of animal metabolism, fibrin sealant (fibrin glue), gene carrier or theranostic agent. Among these rattlesnake toxins, the most relevant, considering the potential clinical applications, are crotamine, crotalphine and gyroxin. In this narrative revision, we propose to organize and present briefly the updates in the accumulated knowledge on potential therapeutic applications of toxins collectively found exclusively in the venom of this specific South American rattlesnake, with the objective of contributing to increase the chances of success in the discovery of drugs based on toxins.
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Affiliation(s)
- Mirian A F Hayashi
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), SP, Brazil.
| | - Joana D Campeiro
- Department of Pharmacology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), SP, Brazil
| | - Camila M Yonamine
- Department of Microbiology, Immunology and Parasitology, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), SP, Brazil.
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Tang Y, Zhang D, Gong X, Zheng J. A mechanistic survey of Alzheimer's disease. Biophys Chem 2021; 281:106735. [PMID: 34894476 DOI: 10.1016/j.bpc.2021.106735] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/26/2021] [Accepted: 11/26/2021] [Indexed: 02/06/2023]
Abstract
Alzheimer's disease (AD) is the most common, age-dependent neurodegenerative disorder. While AD has been intensively studied from different aspects, there is no effective cure for AD, largely due to a lack of a clear mechanistic understanding of AD. In this mini-review, we mainly focus on the discussion and summary of mechanistic causes of Alzheimer's disease (AD). While different AD mechanisms illustrate different molecular and cellular pathways in AD pathogenesis, they do not necessarily exclude each other. Instead, some of them could work together to initiate, trigger, and promote the onset and development of AD. In a broader viewpoint, some AD mechanisms (e.g., amyloid aggregation mechanism, microbial infection/neuroinflammation mechanism, and amyloid cross-seeding mechanism) could also be applicable to other amyloid diseases including type II diabetes, Parkinson's disease, and prion disease. Such common mechanisms for AD and other amyloid diseases explain not only the pathogenesis of individual amyloid diseases, but also the spreading of pathologies between these diseases, which will inspire new strategies for therapeutic intervention and prevention for AD.
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Affiliation(s)
- Yijing Tang
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, OH, United States of America
| | - Dong Zhang
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, OH, United States of America
| | - Xiong Gong
- Department of Polymer Engineering, The University of Akron, OH, United States of America
| | - Jie Zheng
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, OH, United States of America.
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Bhar B, Chouhan D, Pai N, Mandal BB. Harnessing Multifaceted Next-Generation Technologies for Improved Skin Wound Healing. ACS APPLIED BIO MATERIALS 2021; 4:7738-7763. [PMID: 35006758 DOI: 10.1021/acsabm.1c00880] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Dysregulation of sequential and synchronized events of skin regeneration often results in the impairment of chronic wounds. Conventional wound dressings fail to trigger the normal healing mechanism owing to the pathophysiological conditions. Tissue engineering approaches that deal with the fabrication of dressings using various biomaterials, growth factors, and stem cells have shown accelerated healing outcomes. However, most of these technologies are associated with difficulties in scalability and cost-effectiveness of the products. In this review, we survey the latest developments in wound healing strategies that have recently emerged through the multidisciplinary approaches of bioengineering, nanotechnology, 3D bioprinting, and similar cutting-edge technologies to overcome the limitations of conventional therapies. We also focus on the potential of wearable technology that supports complete monitoring of the changes occurring in the wound microenvironment. In addition, we review the role of advanced devices that can precisely enable the delivery of nanotherapeutics, oligonucleotides, and external stimuli in a controlled manner. These technological advancements offer the opportunity to actively influence the regeneration process to benefit the treatment regime further. Finally, the clinical relevance, trajectory, and prospects of this field have been discussed in brief that highlights their potential in providing a beneficial wound care solution at an affordable cost.
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Affiliation(s)
- Bibrita Bhar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Dimple Chouhan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Nakhul Pai
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Biman B Mandal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.,Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.,School of Health Science and Technology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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39
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Csifó-Nagy BK, Sólyom E, Bognár VL, Nevelits A, Dőri F. Efficacy of a new-generation platelet-rich fibrin in the treatment of periodontal intrabony defects: a randomized clinical trial. BMC Oral Health 2021; 21:580. [PMID: 34781955 PMCID: PMC8591936 DOI: 10.1186/s12903-021-01925-1] [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: 05/06/2021] [Accepted: 10/21/2021] [Indexed: 01/02/2023] Open
Abstract
Background The aim of the study was to clinically evaluate the healing of intrabony defects after treatment with a new generation of platelet-rich fibrin (A-PRF+) respect to enamel matrix derivative (EMD). Methods Thirty (30) intrabony defects of 18 patients (9 males, 9 females) were randomly treated with A-PRF+ (test, n = 15) or EMD (control, n = 15). The following clinical parameters were recorded at baseline and 6 months after surgery: pocket depth (PD), gingival recession (GR) and clinical attachment level (CAL). After debridement the intrabony defects were filled with A-PRF+ in the test group, respectively with EMD in the control group, and fixed with sutures to ensure wound closure and stability. Results Both treatment methods resulted in statistically significant PD reductions, respectively CAL gains six months post-operatively. No statistically significant differences were found between the two groups as the mean CAL gain was 2.33 ± 1.58 mm in the A-PRF+ group, respectively 2.60 ± 1.18 mm in the EMD group (p < 0.001). Conclusion Within the limits of this study the new-generation platelet-rich fibrin seems to be as clinically effective as EMD during surgical treatment of intrabony defects. Treatment with A-PRF+ or EMD resulted in reliable clinical outcomes. The use of A-PRF+ as a human autologous product can give a positive impact on periodontal healing. Clinical Relevance A-PRF+ may be suitable for the treatment of intrabony periodontal defects. Trial registration number (TRN) NCT04404374 (ClinicalTrials.gov ID).
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Affiliation(s)
- Boróka Klára Csifó-Nagy
- Department of Periodontology, Faculty of Dentistry, Semmelweis University, Szentkirályi u. 47., Budapest, 1088, Hungary.
| | - Eleonóra Sólyom
- Department of Periodontology, Faculty of Dentistry, Semmelweis University, Szentkirályi u. 47., Budapest, 1088, Hungary
| | - Vera Lili Bognár
- Department of Periodontology, Faculty of Dentistry, Semmelweis University, Szentkirályi u. 47., Budapest, 1088, Hungary
| | - Annamária Nevelits
- Department of Periodontology, Faculty of Dentistry, Semmelweis University, Szentkirályi u. 47., Budapest, 1088, Hungary
| | - Ferenc Dőri
- Department of Periodontology, Faculty of Dentistry, Semmelweis University, Szentkirályi u. 47., Budapest, 1088, Hungary
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Zhu J, Yang G. H 2S signaling and extracellular matrix remodeling in cardiovascular diseases: A tale of tense relationship. Nitric Oxide 2021; 116:14-26. [PMID: 34428564 DOI: 10.1016/j.niox.2021.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 12/12/2022]
Abstract
Extracellular matrix (ECM) is a non-cellular three-dimensional macromolecular network that not only provides mechanical support but also transduces essential molecular signals in organ functions. ECM is constantly remodeled to control tissue homeostasis, responsible for cell adhesion, cell migration, cell-to-cell communication, and cell differentiation, etc. The dysregulation of ECM components contributes to various diseases, including cardiovascular diseases, fibrosis, cancer, and neurodegenerative diseases, etc. Aberrant ECM remodeling is initiated by various stress, such as oxidative stress, inflammation, ischemia, and mechanical stress, etc. Hydrogen sulfide (H2S) is a gasotransmitter that exhibits a wide variety of cytoprotective and physiological functions through its anti-oxidative and anti-inflammatory actions. Amounting research shows that H2S can attenuate aberrant ECM remodeling. In this review, we discussed the implications and mechanisms of H2S in the regulation of ECM remodeling in cardiovascular diseases, and highlighted the potential of H2S in the prevention and treatment of cardiovascular diseases through attenuating adverse ECM remodeling.
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Affiliation(s)
- Jiechun Zhu
- School of Biological, Chemical & Forensic Sciences, Laurentian University, Sudbury, Canada; Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada
| | - Guangdong Yang
- School of Biological, Chemical & Forensic Sciences, Laurentian University, Sudbury, Canada; Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada.
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41
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Luccarelli SV, Villani E, Lucentini S, Bonsignore F, Sacchi M, Martellucci CA, Nucci P. Sutureless "Contact Lens Sandwich" Technique for Amniotic Membrane Therapy of Central Corneal Ulcers. Eur J Ophthalmol 2021; 32:2141-2147. [PMID: 34633886 DOI: 10.1177/11206721211049093] [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] [Indexed: 11/17/2022]
Abstract
PURPOSE To describe a new technique for sutureless and glue-free amniotic membrane transplantation (AMT) and to investigate its effectiveness to treat corneal persistent epithelial defects (PEDs), compared to bandage contact lens (BCL) application alone. METHODS We performed AMT with "contact lens sandwich technique" (CLS-AMT) in 8 consecutive patients with central/para-central (up to 4.00 mm from the geometrical centre) PED/ulceration and we retrospectively compared the results with 11 BCL procedures. RESULTS The procedures were performed successfully with no complications.CLS-AMT showed significantly shorter healing time than BCL (24.0 ± 19.1 vs 42.9 ± 14.6 days; P < 0.05, Mann-Whitney test). Recurrence rates were 12% and 27% for CLS-AMT and BCL, respectively. CONCLUSION CLS-AMT technique, based on the suction effect due to the superposition of a bandage contact lens on the AM-ring complex, represents a quick, low cost, easy to perform and nearly non-invasive AMT technique. This approach is able to provide adequate fixation of AM, and it seems to be a safe and effective treatment for patients with PEDs.
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Affiliation(s)
| | - Edoardo Villani
- 18608Eye Clinic San Giuseppe Hospital, IRCCS Multimedica, Milan, Italy.,Department of Clinical Sciences and Community Health, 9304University of Milan, Italy
| | - Stefano Lucentini
- 18608Eye Clinic San Giuseppe Hospital, IRCCS Multimedica, Milan, Italy
| | | | - Matteo Sacchi
- 18608Eye Clinic San Giuseppe Hospital, IRCCS Multimedica, Milan, Italy
| | | | - Paolo Nucci
- 18608Eye Clinic San Giuseppe Hospital, IRCCS Multimedica, Milan, Italy.,Department of Clinical Sciences and Community Health, 9304University of Milan, Italy
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42
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Yang N, Xing Y, Zhao Q, Zeng S, Yang J, Du L. Application of platelet-rich fibrin grafts following pterygium excision. Int J Clin Pract 2021; 75:e14560. [PMID: 34155746 DOI: 10.1111/ijcp.14560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/18/2021] [Indexed: 01/10/2023] Open
Abstract
PURPOSE To compare the efficacy, safety and recurrence rate of platelet-rich fibrin (PRF) grafts and limbal conjunctival autografts (LCAs) following pterygium excision. METHODS A total of 108 patients (108 eyes) with primary pterygium were included in this study and were divided into group A (56 eyes) and group B (52 eyes). Patients in group A underwent excision of the pterygium followed by LCA while patients in group B underwent PRF grafts following pterygium excision. The PRF was produced using the patient's own whole-blood sample by centrifugation and extrusion. The surgery time, intraoperative complications, postoperative complications, recurrence rate, intraocular pressure (IOP) and follow-up period were recorded and evaluated between the two groups. RESULTS The mean surgery time was significantly shorter in group B (25.0 ± 4.2 min) than in group A (36.5 ± 6.3 min) (P < .001). Recurrence was observed in two cases (3.6%) in group A while no recurrence was observed in group B. No graft loss was observed in either group. No other intra/postoperative complications such as a tear in the graft, injury to the medial rectus muscle, excessive bleeding, scleral necrosis, graft oedema, graft necrosis, pannus formation or symblepharon appeared in either group. CONCLUSIONS This study presented with a promising outcome of PRF graft applications in primary pterygium surgery. The use of PRF following pterygium excision is a simple, easily applicable, and comfortable method for both patients and surgeons, with less time consumption, recurrence rate and complications, which could be widely used in pterygium management.
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Affiliation(s)
- Ning Yang
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yiqiao Xing
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, China
- Aier Eye Hospital of Wuhan University, Wuhan, China
| | - Qiuya Zhao
- Aier Eye Hospital of Wuhan University, Wuhan, China
| | - Siyu Zeng
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Juan Yang
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lei Du
- Eye Center, Renmin Hospital of Wuhan University, Wuhan, China
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43
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Reeshma S, Dain CP. Comparison of platelet-rich fibrin with zinc oxide eugenol in the relief of pain in alveolar osteitis. Health Sci Rep 2021; 4:e354. [PMID: 34401528 PMCID: PMC8358232 DOI: 10.1002/hsr2.354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/13/2021] [Accepted: 07/22/2021] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND AND AIMS Alveolar osteitis (AO) is the most common painful post-operative complication after tooth extraction. The common modalities used in the management of AO are lavage, placement of medicated dressings, analgesics, and antibiotics. The present study was undertaken to compare platelet-rich fibrin (PRF) and zinc oxide eugenol (ZOE) for pain relief in AO. METHODS All cases meeting the eligibility criteria received two different treatment modalities over a span of 18 months. At the analysis stage, the final sample size comprised 70 patients, with 35 patients appropriated in each group. Group A patients received ZOE and Group B received PRF. Pain scores were measured on "1st, 3rd, 5th, and 7th" days based on a visual analogue scale (VAS) and compared in both groups of patients. The collected data were analyzed using the chi-square test, t test, and Mann-Whitney U test. RESULTS In patients treated with ZOE dressing, the average VAS scores observed were 7.4 ± 1.5, 5.1 ± 1.1, 3.4 ± 0.9, and 2.1 ± 0.7, respectively, on the "1st, 3rd, 5th, and 7th" follow-up days. In patients treated with PRF, the average VAS score observed were 4.1 ± 1.2, 2.6 ± 0.9, 1.7 ± 0.9, and 0.8 ± 0.8 respectively. CONCLUSION Both ZOE and PRF were effective in pain control during the follow-up period. However, the pain intensity measured as a pain score using VAS was, lower in the PRF group than in the ZOE group on all follow-up days.
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Affiliation(s)
- Satheesh Reeshma
- Department of Oral and Maxillofacial SurgeryGovernment Dental CollegeTrivandrumIndia
| | - Chacko Pearl Dain
- Department of Oral and Maxillofacial SurgeryGovernment Dental CollegeTrivandrumIndia
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44
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Roosa CA, Muhamed I, Young AT, Nellenbach K, Daniele MA, Ligler FS, Brown AC. Synthesis of sonicated fibrin nanoparticles that modulate fibrin clot polymerization and enhance angiogenic responses. Colloids Surf B Biointerfaces 2021; 204:111805. [PMID: 33964527 PMCID: PMC8217261 DOI: 10.1016/j.colsurfb.2021.111805] [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: 12/31/2020] [Revised: 04/09/2021] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
Chronic wounds can occur when the healing process is disrupted and the wound remains in a prolonged inflammatory stage that leads to severe tissue damage and poor healing outcomes. Clinically used treatments, such as high density, FDA-approved fibrin sealants, do not provide an optimal environment for native cell proliferation and subsequent tissue regeneration. Therefore, new treatments outside the confines of these conventional fibrin bulk gel therapies are required. We have previously developed flowable, low-density fibrin nanoparticles that, when coupled to keratinocyte growth factor, promote cell migration and epithelial wound closure in vivo. Here, we report a new high throughput method for generating the fibrin nanoparticles using probe sonication, which is less time intensive than the previously reported microfluidic method, and investigate the ability of the sonicated fibrin nanoparticles (SFBN) to promote clot formation and cell migration in vitro. The SFBNs can form a fibrin gel when combined with fibrinogen in the absence of exogenous thrombin, and the polymerization rate and fiber density in these fibrin clots is tunable based on SFBN concentration. Furthermore, fibrin gels made with SFBNs support cell migration in an in vitro angiogenic sprouting assay, which is relevant for wound healing. In this report, we show that SFBNs may be a promising wound healing therapy that can be easily produced and delivered in a flowable formulation.
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Affiliation(s)
- Colleen A Roosa
- Joint Department of Biomedical Engineering, NC State University and UNC Chapel-Hill, Raleigh, NC, United States; Comparative Medicine Institute, NC State University, Raleigh, NC, United States
| | - Ismaeel Muhamed
- Joint Department of Biomedical Engineering, NC State University and UNC Chapel-Hill, Raleigh, NC, United States; Comparative Medicine Institute, NC State University, Raleigh, NC, United States
| | - Ashlyn T Young
- Joint Department of Biomedical Engineering, NC State University and UNC Chapel-Hill, Raleigh, NC, United States; Comparative Medicine Institute, NC State University, Raleigh, NC, United States
| | - Kimberly Nellenbach
- Joint Department of Biomedical Engineering, NC State University and UNC Chapel-Hill, Raleigh, NC, United States; Comparative Medicine Institute, NC State University, Raleigh, NC, United States
| | - Michael A Daniele
- Joint Department of Biomedical Engineering, NC State University and UNC Chapel-Hill, Raleigh, NC, United States; Comparative Medicine Institute, NC State University, Raleigh, NC, United States; Department of Electrical and Computer Engineering, NC State University, Raleigh, NC, United States
| | - Frances S Ligler
- Joint Department of Biomedical Engineering, NC State University and UNC Chapel-Hill, Raleigh, NC, United States; Comparative Medicine Institute, NC State University, Raleigh, NC, United States
| | - Ashley C Brown
- Joint Department of Biomedical Engineering, NC State University and UNC Chapel-Hill, Raleigh, NC, United States; Comparative Medicine Institute, NC State University, Raleigh, NC, United States.
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45
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Bounds K, Colmer-Hamood JA, Myntti M, Jeter RM, Hamood AN. The influence of a biofilm-dispersing wound gel on the wound healing process. Int Wound J 2021; 19:553-572. [PMID: 34263993 PMCID: PMC8874046 DOI: 10.1111/iwj.13653] [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: 04/11/2021] [Revised: 06/14/2021] [Accepted: 06/21/2021] [Indexed: 01/02/2023] Open
Abstract
Topical antimicrobials that reduce the bacterial bioburden within a chronically‐infected wound may have helpful or harmful effects on the healing process. We used murine models of full‐thickness skin wounds to determine the effects of the novel biofilm‐dispersing wound gel (BDWG) and its gel base on the healing of uninfected wounds. The rate of wound closure over 19 days was comparable among the BDWG‐treated (BT) wounds and the controls. Compared with the controls, histology of the BT wounds showed formation of a stable blood clot at day 1, more neovascularisation and reepithelialisation at day 3, and more organised healing at day 7. Fluorescence‐activated cell sorting analysis showed a lower percentage of neutrophils in wounded tissues of the BT group at days 1 and 3, and significantly more M2 macrophages at day 3. Levels of proinflammatory cytokines and chemokines were increased over the uninjured baseline within the wounds of all treatment groups but the levels were significantly lower in the BT group at day 1, modulating the inflammatory response. Our results suggest that BDWG does not interfere with the wound healing process and may enhance it by lowering inflammation and allowing transition to the proliferative stage of wound healing by day 3.
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Affiliation(s)
- Kayla Bounds
- Department of Biological Sciences, Texas Tech University, Lubbock, Texas, USA.,Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Jane A Colmer-Hamood
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.,Department of Medical Education, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
| | - Matthew Myntti
- Research and Development, Next Science LLC, Jacksonville, Florida, USA
| | - Randall M Jeter
- Department of Biological Sciences, Texas Tech University, Lubbock, Texas, USA
| | - Abdul N Hamood
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.,Department of Surgery, Texas Tech University Health Sciences Center, Lubbock, Texas, USA
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Korkmaz B, Balli U. Clinical evaluation of the treatment of multiple gingival recessions with connective tissue graft or concentrated growth factor using tunnel technique: a randomized controlled clinical trial. Clin Oral Investig 2021; 25:6347-6356. [PMID: 33830339 DOI: 10.1007/s00784-021-03935-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/30/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To assess the effectiveness of the combination of tunnel technique (TT) and concentrated growth factor (CGF) for root coverage in treating multiple gingival recessions (GR) and compare with the connective tissue graft (CTG). MATERIALS AND METHODS Forty patients with Miller Class I and II maxillary or mandibular GR were randomly divided into two groups as follows: TT + CTG and TT + CGF. The results at baseline and 6 months were evaluated for the following clinical parameters: complete root coverage (CRC), mean root coverage (MRC), gingival thickness (GT), gingival recession width (RW), gingival recession depth (RD), and keratinized tissue width (KTW). RESULTS At 6 months, a statistically significant difference was found in RD, RW, MRC, CRC, KTW, and GT compared with the baseline (p < 0.05). MRC was determined 89.52±16.36% in the TT + CTG and 76.60±24.10% in the TT + CGF (p < 0.05). CRC was achieved in 66.7% of the TT + CTG and 47.4% of the TT + CGF (p < 0.05). The increase in KTW and GT was significantly better in the TT + CTG group compared to the TT + CGF (p < 0.05). CONCLUSIONS The study showed that TT + CGF did not improve the results as much as TT + CTG in the treatment of Miller Class I and II GR. However, this finding is not sufficient to advocate the true clinical effects of CGF on GR treatment with TT. CLINICAL RELEVANCE CGF could not serve as a direct alternative biomaterial to the gold standard CTG. TRIAL REGISTRATION ClinicalTrials.gov Identification Number: NCT04561947.
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Affiliation(s)
- Birsen Korkmaz
- Department of Periodontology, Faculty of Dentistry, Bulent Ecevit University, Zonguldak, Turkey.
| | - Umut Balli
- Department of Periodontology, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
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Abstract
The aim of this article was to synopsize platelet-rich plasma (PRP) use in musculoskeletal pathologies through evidence-based assessment of the preparation, classification, mechanism of action and applications of PRP, thereby answering which PRP type is best for each clinical indication. The literature search was performed using Medline, EMBASE and Cochrane Reviews databases for papers containing the key terms “platelet-rich plasma” AND “orthopaedics” AND (“classification” OR “mechanism of action” OR “preparation” OR “clinical application”). Generated papers were evaluated for pertinence in following areas: preparation, classification, mechanism of action, clinical application within orthopaedics. Non-English papers were excluded. Included studies were evaluated for quality. Sixty studies were included in our review. There are many commercial PRP preparation kits with differing component concentrations. There is no consensus on optimal component concentrations. Multiple PRP classifications exist but none have been validated. Platelet-rich plasma acts via growth factors (GFs) released from α-granules within platelets. Growth factors have been shown to be beneficial in healing. Grossly elevated concentrations of GFs may have inhibitory effects on healing. Multiple systematic reviews show efficacy of PRP in tendinopathies, early osteoarthritis, acute muscle injuries and in combination with rotator cuff repair and anterior cruciate ligament reconstruction. The literature suggests leukocyte-rich PRP (L-PRP) is more beneficial in tendinopathies and pure PRP (P-PRP) is more beneficial in cartilage pathology. However, different PRP preparations have not been directly compared in any pathology. Classification of PRP type is frequently not stated in research. Standardization of PRP research parameters is needed to streamline findings and generate clear indications for PRP types to yield maximum clinical benefit.
Cite this article: EFORT Open Rev 2021;6:225-235. DOI: 10.1302/2058-5241.6.200017
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Affiliation(s)
- Thomas Collins
- Trauma & Orthopaedics, Wythenshawe Hospital, Wythenshawe, UK
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48
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Fibrinogen, collagen, and transferrin adsorption to poly(3,4-ethylenedioxythiophene)-xylorhamno-uronic glycan composite conducting polymer biomaterials for wound healing applications. Biointerphases 2021; 16:021003. [PMID: 33752337 DOI: 10.1116/6.0000708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We present the conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT) doped with an algal-derived glycan extract, Phycotrix™ [xylorhamno-uronic glycan (XRU84)], as an innovative electrically conductive material capable of providing beneficial biological and electrical cues for the promotion of favorable wound healing processes. Increased loading of the algal XRU84 into PEDOT resulted in a reduced surface nanoroughness and interfacial surface area and an increased static water contact angle. PEDOT-XRU84 films demonstrated good electrical stability and charge storage capacity and a reduced impedance relative to the control gold electrode. A quartz crystal microbalance with dissipation monitoring study of protein adsorption (transferrin, fibrinogen, and collagen) showed that collagen adsorption increased significantly with increased XRU84 loading, while transferrin adsorption was significantly reduced. The viscoelastic properties of adsorbed protein, characterized using the ΔD/Δf ratio, showed that for transferrin and fibrinogen, a rigid, dehydrated layer was formed at low XRU84 loadings. Cell studies using human dermal fibroblasts demonstrated excellent cell viability, with fluorescent staining of the cell cytoskeleton illustrating all polymers to present excellent cell adhesion and spreading after 24 h.
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49
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Xia J, Cai LH, Wu H, MacKintosh FC, Weitz DA. Anomalous mechanics of Zn 2+-modified fibrin networks. Proc Natl Acad Sci U S A 2021; 118:e2020541118. [PMID: 33649231 PMCID: PMC7958264 DOI: 10.1073/pnas.2020541118] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Fibrin is the main component of blood clots. The mechanical properties of fibrin are therefore of critical importance in successful hemostasis. One of the divalent cations released by platelets during hemostasis is Zn2+; however, its effect on the network structure of fibrin gels and on the resultant mechanical properties remains poorly understood. Here, by combining mechanical measurements with three-dimensional confocal microscopy imaging, we show that Zn2+ can tune the fibrin network structure and alter its mechanical properties. In the presence of Zn2+, fibrin protofibrils form large bundles that cause a coarsening of the fibrin network due to an increase in fiber diameter and reduction of the total fiber length. We further show that the protofibrils in these bundles are loosely coupled to one another, which results in a decrease of the elastic modulus with increasing Zn2+ concentrations. We explore the elastic properties of these networks at both low and high stress: At low stress, the elasticity originates from pulling the thermal slack out of the network, and this is consistent with the thermal bending of the fibers. By contrast, at high stress, the elasticity exhibits a common master curve consistent with the stretching of individual protofibrils. These results show that the mechanics of a fibrin network are closely correlated with its microscopic structure and inform our understanding of the structure and physical mechanisms leading to defective or excessive clot stiffness.
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Affiliation(s)
- Jing Xia
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
| | - Li-Heng Cai
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
- Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA 22904
| | - Huayin Wu
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
| | - Frederick C MacKintosh
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005
- Center for Theoretical Biological Physics, Rice University, Houston, TX 77030
- Department of Chemistry and Physics, Rice University, Houston, TX 77005
- Department of Astronomy, Rice University, Houston, TX 77005
| | - David A Weitz
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138;
- Department of Physics, Harvard University, Cambridge, MA 02138
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Ayavoo T, Murugesan K, Gnanasekaran A. Roles and mechanisms of stem cell in wound healing. Stem Cell Investig 2021; 8:4. [PMID: 33829056 DOI: 10.21037/sci-2020-027] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 01/27/2021] [Indexed: 01/02/2023]
Abstract
Wound healing phases comprise of highly synchronized process that begins due to a damage and restores the integrity of the injured tissues. Wound healing reduces the damage in tissue and supply sufficient oxygen and tissue perfusion, provide proper nourishment and humid wound healing atmosphere to re-establish the essential status of exaggerated parts. The untreated wound becomes susceptible for pus development, bacterial infection and complications like sepsis. Traditional and modern approaches are in practice to treat acute, open and chronic injuries, however, present wound care management has met with challenges and minimal positive effects. Stem cells have possible wound healing capability to overwhelm restrictions of the current wound care practices as it produces faster tissue regeneration in wound repair. Stem cells are unspecialized cells derived from adult body tissues and embryos that differentiate into any cell of an organism and capable of self-regeneration. The understanding on molecular mechanisms of stem cells has become the central and promising field in scientific study. This review focuses on the pre-existing traditional and modern treatments for wound healing, and types and roles of stem cells in wound care management. This review also focuses on the fundamental molecular characterization and factors influencing the molecular mechanisms of stem cells in wound healing.
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Affiliation(s)
- Thurga Ayavoo
- Centre of Research for Infectious Diseases and Phytochemical Studies, Quest International University Perak, Perak, Malaysia
| | - Karthikeyan Murugesan
- Centre of Research for Infectious Diseases and Phytochemical Studies, Quest International University Perak, Perak, Malaysia.,Department of Microbiology, Faculty of Medicine, Quest International University Perak, Perak, Malaysia
| | - Ashok Gnanasekaran
- Centre of Research for Infectious Diseases and Phytochemical Studies, Quest International University Perak, Perak, Malaysia.,Department of Microbiology, Faculty of Medicine, Quest International University Perak, Perak, Malaysia
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