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Pitsilos C, Karachrysafi S, Fragou A, Gigis I, Papadopoulos P, Chalidis B. The Biological Effect of Platelet-Rich Plasma on Rotator Cuff Tears: A Prospective Randomized In Vivo Study. Int J Mol Sci 2024; 25:7957. [PMID: 39063199 PMCID: PMC11277466 DOI: 10.3390/ijms25147957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 07/15/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
The positive effect of platelet-rich plasma (PRP) on tendon metabolism has been extensively investigated and proven in vitro. Additionally, in vivo animal studies have correlated the application of PRP with the enhancement of tenocyte anabolic activity in the setting of tendon degeneration. However, less is known about its in vivo effect on human tendon biology. The purpose of the current prospective randomized comparative study was to evaluate the effect of PRP on torn human supraspinatus tendon. Twenty consecutive eligible patients with painful and magnetic resonance imaging (MRI)-confirmed degenerative supraspinatus tendon tears were randomized in a one-to-one ratio into two groups. The patients in the experimental group (n = 10) underwent an ultrasound-guided autologous PRP injection in the subacromial space 6 weeks before the scheduled operation. In the control group (n = 10), no injection was made prior to surgery. Supraspinatus tendon specimens were harvested from the lateral end of the torn tendon during shoulder arthroscopy and were evaluated under optical and electron microscopy. In the control group, a mixed cell population of oval and rounded tenocytes within disorganized collagen and sites of accumulated inflammatory cells was detected. In contrast, the experimental group yielded abundant oval-shaped cells with multiple cytoplasmic processes within mainly parallel collagen fibers and less marked inflammation, simulating the intact tendon structure. These findings indicate that PRP can induce microscopic changes in the ruptured tendon by stimulating the healing process and can facilitate a more effective recovery.
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Affiliation(s)
- Charalampos Pitsilos
- 2nd Orthopaedic Department, Aristotle University of Thessaloniki, 54635 Thessaloniki, Greece; (C.P.); (I.G.); (P.P.)
| | - Sofia Karachrysafi
- Research Team “Histologistas”, Interinstitutional Postgraduate Program “Health and Environmental Factors”, Department of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Laboratory of Histology-Embryology, Department of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Aikaterini Fragou
- Laboratory of Biological Chemistry, Medical Department, School of Health Science, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Ioannis Gigis
- 2nd Orthopaedic Department, Aristotle University of Thessaloniki, 54635 Thessaloniki, Greece; (C.P.); (I.G.); (P.P.)
| | - Pericles Papadopoulos
- 2nd Orthopaedic Department, Aristotle University of Thessaloniki, 54635 Thessaloniki, Greece; (C.P.); (I.G.); (P.P.)
| | - Byron Chalidis
- 1st Orthopaedic Department, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
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Bai MY, Vy VPT, Tang SL, Hung TNK, Wang CW, Liang JY, Wong CC, Chan WP. Current Progress of Platelet-Rich Derivatives in Cartilage and Joint Repairs. Int J Mol Sci 2023; 24:12608. [PMID: 37628786 PMCID: PMC10454586 DOI: 10.3390/ijms241612608] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
In recent years, several types of platelet concentrates have been investigated and applied in many fields, particularly in the musculoskeletal system. Platelet-rich fibrin (PRF) is an autologous biomaterial, a second-generation platelet concentrate containing platelets and growth factors in the form of fibrin membranes prepared from the blood of patients without additives. During tissue regeneration, platelet concentrates contain a higher percentage of leukocytes and a flexible fibrin net as a scaffold to improve cell migration in angiogenic, osteogenic, and antibacterial capacities during tissue regeneration. PRF enables the release of molecules over a longer period, which promotes tissue healing and regeneration. The potential of PRF to simulate the physiology and immunology of wound healing is also due to the high concentrations of released growth factors and anti-inflammatory cytokines that stimulate vessel formation, cell proliferation, and differentiation. These products have been used safely in clinical applications because of their autologous origin and minimally invasive nature. We focused on a narrative review of PRF therapy and its effects on musculoskeletal, oral, and maxillofacial surgeries and dermatology. We explored the components leading to the biological activity and the published preclinical and clinical research that supports its application in musculoskeletal therapy. The research generally supports the use of PRF as an adjuvant for various chronic muscle, cartilage, and tendon injuries. Further clinical trials are needed to prove the benefits of utilizing the potential of PRF.
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Affiliation(s)
- Meng-Yi Bai
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
- Adjunct Appointment to the Department of Biomedical Engineering, National Defense Medical Center, Taipei 11490, Taiwan
| | - Vu Pham Thao Vy
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Department of Radiology, Thai Nguyen National Hospital, Thai Nguyen 24000, Vietnam
| | - Sung-Ling Tang
- Department of Pharmacy Practice, Tri-Service General Hospital, Taipei 11490, Taiwan
| | | | - Ching-Wei Wang
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Jui-Yuan Liang
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Chin-Chean Wong
- Department of Orthopedics, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan;
- Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11011, Taiwan
- International Ph.D. Program for Cell Therapy and Regenerative Medicine, College of Medicine, Taipei Medical University, Taipei 11011, Taiwan
| | - Wing P. Chan
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei 116081, Taiwan
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Li D, Wang G, Li J, Yan L, Liu H, Jiu J, Li X, Li JJ, Wang B. Biomaterials for Tissue-Engineered Treatment of Tendinopathy in Animal Models: A Systematic Review. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:387-413. [PMID: 36792921 DOI: 10.1089/ten.teb.2022.0178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
To conduct a systematic review of studies reporting the treatment of tendon injury using biomaterials in animal models. A systematic search was conducted to retrieve studies involving animal models of tendon repair using biomaterials, in PubMed (database construction to August 2022) and Ovid-Embase (1946 to August 2022). Data related to tendon repair with biomaterials were extracted by two researchers, respectively. Risk of bias was assessed following the Cochrane Handbook for Systematic Reviews of Interventions. A statistical analysis was performed based on the classification of tendon repair biomaterials included in our study. A total of 8413 articles were retrieved, with 78 studies included in our analysis. For tendon repair in animal models using biomaterials, the most commonly seen characteristics were as follows: naturally derived biomaterials, rabbits and rats as animal models, surgery as the injury model, and the Achilles tendon as the injury site. The histology and biomechanical recovery of tendon injury following repair are affected by different biomaterials. Studies of tendon repair in animal models indicate that biomaterials can significantly improve repair outcomes, including tendon structure and biomechanics. Among effective biomaterial strategies are the use of new composites and incorporation of cells or growth factors into the material, both of which provide obvious benefits for tendon healing. More high-quality preclinical studies are required to encourage the translation of biomaterials into clinical practice for tendon repair.
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Affiliation(s)
- Dijun Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedic Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, China
| | - Guishan Wang
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, China
| | - Jiarong Li
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, Australia
| | - Lei Yan
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Haifeng Liu
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jingwei Jiu
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaoke Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiao Jiao Li
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Ultimo, Australia
| | - Bin Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Orthopaedic Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, China
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Chalidis B, Givissis P, Papadopoulos P, Pitsilos C. Molecular and Biologic Effects of Platelet-Rich Plasma (PRP) in Ligament and Tendon Healing and Regeneration: A Systematic Review. Int J Mol Sci 2023; 24:2744. [PMID: 36769065 PMCID: PMC9917492 DOI: 10.3390/ijms24032744] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
Platelet-rich plasma (PRP) has been introduced and applied to a wide spectrum of acute and chronic ligament and tendon pathologic conditions. Although the biological effect of PRP has been studied thoroughly in both animal and human studies, there is no consensus so far on the exact mechanism of its action as well as the optimal timing and dosage of its application. Therefore, we conducted a systematic review aiming to evaluate the molecular effect of the administration of PRP in tendoligamentous injuries and degenerative diseases. The literature search revealed 36 in vitro and in vivo studies examining the healing and remodeling response of animal and human ligament or tendon tissues to PRP. Platelet-rich plasma added in the culture media was highly associated with increased cell proliferation, migration, viability and total collagen production of both ligament- and tendon-derived cells in in vitro studies, which was further confirmed by the upregulation of collagen gene expression. In vivo studies correlated the PRP with higher fibroblastic anabolic activity, including increased cellularity, collagen production and vascularity of ligament tissue. Similarly, greater metabolic response of tenocytes along with the acceleration of the healing process in the setting of a tendon tear were noticed after PRP application, particularly between the third and fourth week after treatment. However, some studies demonstrated that PRP had no or even negative effect on tendon and ligament regeneration. This controversy is mainly related to the variable processes and methodologies of preparation of PRP, necessitating standardized protocols for both investigation and ap-plication.
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Affiliation(s)
- Byron Chalidis
- 1st Orthopaedic Department, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
| | - Panagiotis Givissis
- 1st Orthopaedic Department, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
| | - Pericles Papadopoulos
- 2nd Orthopaedic Department, Aristotle University of Thessaloniki, 54635 Thessaloniki, Greece
| | - Charalampos Pitsilos
- 2nd Orthopaedic Department, Aristotle University of Thessaloniki, 54635 Thessaloniki, Greece
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Evolution and Clinical Advances of Platelet-Rich Fibrin in Musculoskeletal Regeneration. BIOENGINEERING (BASEL, SWITZERLAND) 2023; 10:bioengineering10010058. [PMID: 36671630 PMCID: PMC9854731 DOI: 10.3390/bioengineering10010058] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 01/05/2023]
Abstract
Over the past few decades, various forms of platelet concentrates have evolved with significant clinical utility. The newer generation products, including leukocyte-platelet-rich fibrin (L-PRF) and advanced platelet-rich fibrin (A-PRF), have shown superior biological properties in musculoskeletal regeneration than the first-generation concentrates, such as platelet-rich plasma (PRP) and plasma rich in growth factors. These newer platelet concentrates have a complete matrix of physiological fibrin that acts as a scaffold with a three-dimensional (3D) architecture. Further, it facilitates intercellular signaling and migration, thereby promoting angiogenic, chondrogenic, and osteogenic activities. A-PRF with higher leukocyte inclusion possesses antimicrobial activity than the first generations. Due to the presence of enormous amounts of growth factors and anti-inflammatory cytokines that are released, A-PRF has the potential to replicate the various physiological and immunological factors of wound healing. In addition, there are more neutrophils, monocytes, and macrophages, all of which secrete essential chemotactic molecules. As a result, both L-PRF and A-PRF are used in the management of musculoskeletal conditions, such as chondral injuries, tendinopathies, tissue regeneration, and other sports-related injuries. In addition to this, its applications have been expanded to include the fields of reconstructive cosmetic surgery, wound healing in diabetic patients, and maxillofacial surgeries.
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Viganò M, Ragni E, Marmotti A, de Girolamo L. The effects of orthobiologics in the treatment of tendon pathologies: a systematic review of preclinical evidence. J Exp Orthop 2022; 9:31. [PMID: 35394237 PMCID: PMC8994001 DOI: 10.1186/s40634-022-00468-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/24/2022] [Indexed: 02/06/2023] Open
Abstract
Purpose The aim of this systematic review is to explore the current available knowledge about tendon disorders and orthobiologics derived by preclinical experiments to evaluate their role and efficacy in the different stages and conditions related to the tendon healing processes. Methods The systematic review was performed according to the PRISMA guidelines. Different electronic databases (MEDLINE, Web of Science, EMBASE) were searched for studies investigating orthobiologics (PRP and cell-based products from adipose tissue or bone marrow) in animal models or veterinary clinical trials for tendon pathologies (complete/partial tendon ruptures, rotator cuff tears, tendinopathy, enthesis-related injuries). Data regarding the specific product used, the treatment site/pathology, the host and the model were collected. The results were classified into the following categories: histological, biomechanical, molecular and imaging. Results A large pool of preclinical studies on tendon disorders have been found on platelet-rich plasma (PRP), while data about stromal vascular fraction (SVF) and bone marrow concentrate (BMAC) are still limited and frequently focused on expanded cells, rather than orthobiologics prepared at the point of care. The effect of PRP is related to an acceleration of the healing process, without improvements in the final structure and properties of repaired tendon. Cell-based products have been reported to produce more durable results, but the level of evidence is currently insufficient to draw clear indications. Conclusions The preclinical results about orthobiologics applications to tendon pathologies would support the rationale of their clinical use and encourage the performance of clinical trials aimed to confirm these data in human subjects. Supplementary Information The online version contains supplementary material available at 10.1186/s40634-022-00468-w.
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Affiliation(s)
- Marco Viganò
- Orthopaedics biotechnology Lab, IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milan, Italy
| | - Enrico Ragni
- Orthopaedics biotechnology Lab, IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milan, Italy.
| | - Antonio Marmotti
- San Luigi Gonzaga Hospital, Orthopedics and Traumatology Department, University of Turin - Medical School, Turin, Italy
| | - Laura de Girolamo
- Orthopaedics biotechnology Lab, IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milan, Italy
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Kunze KN, Pakanati JJ, Vadhera AS, Polce EM, Williams BT, Parvaresh KC, Chahla J. The Efficacy of Platelet-Rich Plasma for Ligament Injuries: A Systematic Review of Basic Science Literature With Protocol Quality Assessment. Orthop J Sports Med 2022; 10:23259671211066504. [PMID: 35155701 PMCID: PMC8832618 DOI: 10.1177/23259671211066504] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/27/2021] [Indexed: 02/01/2023] Open
Abstract
Background: Despite the existence of many clinical studies on platelet-rich plasma (PRP) interventions for ligamentous pathology, basic science consensus regarding the indications, mechanisms, and optimal composition of PRP for treating ligament injuries is lacking. Purpose: To (1) compare the efficacy of PRP in animal models of ligament injury with placebo and (2) describe the potential variability in PRP preparation using accepted classification systems. Study Design: Systematic review. Methods: The Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, PubMed, Embase, and Ovid MEDLINE were queried in April 2020 for in vivo and in vitro basic science studies regarding PRP use for ligament injury. Study design, results, PRP composition, and analyzed cellular and molecular markers were extracted, and outcomes relative to control models were documented. Bias was assessed using the SYRCLE risk-of-bias tool. Results: Included were 43 articles (31 in vivo and 12 in vitro studies) investigating the anterior cruciate ligament/cranial cruciate ligament (n = 32), medial collateral ligament (n = 6), suspensory ligament (n = 3), patellar ligament (n = 1), and Hock ligament (n = 1). Platelet concentration was reported in 34 studies (77.3%); leukocyte composition, in 12 (27.3%); and red blood cell counts, in 7 (15.9%). With PRP treatment, 5 of 12 in vitro studies demonstrated significant increases in cell viability, 6 of 12 in gene expression, 14 of 32 in vivo studies reported superior ligament repair via histological evaluation, and 13 in vivo studies reported superior mechanical properties. Variability in PRP preparation methods was observed across all articles, and only 1 study reported all necessary information to be classified by the 4 schemes we used to evaluate reporting. Among the in vivo studies, detection and performance bias were consistently high, whereas selection, attrition, reporting, and other biases were consistently low. Conclusion: Conflicting data on the cellular and molecular effects of PRP for ligament injuries were observed secondary to the finding that included studies were heterogeneous, limiting interpretation across studies and the ability to draw meaningful conclusions. Clinical trials and any causal relationship between PRP use in ligament injuries and its potential for regeneration and healing should be pursued with caution if based solely on basic science data.
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Affiliation(s)
- Kyle N. Kunze
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, New York, USA
| | - Jeevana J. Pakanati
- Rosalind Franklin University, Chicago Medical School, Chicago, Illinois, USA
| | - Amar S. Vadhera
- Department of Orthopaedic Surgery, Division of Sports Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Evan M. Polce
- University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Brady T. Williams
- Department of Orthopaedic Surgery, University of Colorado, Aurora, Colorado, USA
| | - Kevin C. Parvaresh
- Department of Orthopaedic Surgery, Division of Sports Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Jorge Chahla
- Department of Orthopaedic Surgery, Division of Sports Medicine, Rush University Medical Center, Chicago, Illinois, USA
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Barbon S, Stocco E, Macchi V, Contran M, Grandi F, Borean A, Parnigotto PP, Porzionato A, De Caro R. Platelet-Rich Fibrin Scaffolds for Cartilage and Tendon Regenerative Medicine: From Bench to Bedside. Int J Mol Sci 2019; 20:ijms20071701. [PMID: 30959772 PMCID: PMC6479320 DOI: 10.3390/ijms20071701] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/30/2019] [Accepted: 04/01/2019] [Indexed: 12/22/2022] Open
Abstract
Nowadays, research in Tissue Engineering and Regenerative Medicine is focusing on the identification of instructive scaffolds to address the requirements of both clinicians and patients to achieve prompt and adequate healing in case of injury. Among biomaterials, hemocomponents, and in particular Platelet-rich Fibrin matrices, have aroused widespread interest, acting as delivery platforms for growth factors, cytokines and immune/stem-like cells for immunomodulation; their autologous origin and ready availability are also noteworthy aspects, as safety- and cost-related factors and practical aspects make it possible to shorten surgical interventions. In fact, several authors have focused on the use of Platelet-rich Fibrin in cartilage and tendon tissue engineering, reporting an increasing number of in vitro, pre-clinical and clinical studies. This narrative review attempts to compare the relevant advances in the field, with particular reference being made to the regenerative role of platelet-derived growth factors, as well as the main pre-clinical and clinical research on Platelet-rich Fibrin in chondrogenesis and tenogenesis, thereby providing a basis for critical revision of the topic.
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Affiliation(s)
- Silvia Barbon
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Via A. Gabelli 65, 35121 Padova, Italy.
- LifeLab Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padova, Italy.
| | - Elena Stocco
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Via A. Gabelli 65, 35121 Padova, Italy.
- LifeLab Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padova, Italy.
| | - Veronica Macchi
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Via A. Gabelli 65, 35121 Padova, Italy.
- LifeLab Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padova, Italy.
| | - Martina Contran
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Via A. Gabelli 65, 35121 Padova, Italy.
| | - Francesca Grandi
- Complex Operative Unit-Pediatric Surgery, Hospital of Bolzano, Via L. Böhler 5, 39100 Bolzano, Italy.
| | - Alessio Borean
- Department of Immunohematology and Transfusion Medicine, San Martino Hospital, 32100 Belluno, Italy.
| | - Pier Paolo Parnigotto
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling (T.E.S.) Onlus, 35131 Padua, Italy.
| | - Andrea Porzionato
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Via A. Gabelli 65, 35121 Padova, Italy.
- LifeLab Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padova, Italy.
| | - Raffaele De Caro
- Department of Neuroscience, Section of Human Anatomy, University of Padova, Via A. Gabelli 65, 35121 Padova, Italy.
- LifeLab Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padova, Italy.
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Gür ÖE, Ensari N, Yılmaz NDS. The Effects of Platelet-Rich Fibrin Membrane on Secondary Healing After Pleomorphic Adenoma Excision in the Hard Palate: A Preliminary Study. Ann Maxillofac Surg 2017; 7:78-81. [PMID: 28713740 PMCID: PMC5502520 DOI: 10.4103/ams.ams_182_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Aim: This study aims to evaluate the effects of platelet-rich fibrin (PRF) membrane on secondary healing after pleomorphic adenoma (PA) excision in the hard palate. Materials and Methods: PRF membranes were laid over mucosal defects which occurred following PA excision in the hard palate. The secondary healing process was monitored in the patients by follow-up examinations on postoperative days 5, 10, 15, 20, 25, 30, 35, and 40. Results: In this preliminary study, epithelialization was observed to have completed on the 30th day of follow-up in the first patient and on the 35th day in the second and third patients. No bleeding or infection was seen in any of the three patients. Conclusions: PRF membrane as a new method in the secondary healing after PA excision in the hard palate provided rapid healing and reduced complications such as bleeding and infection.
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Affiliation(s)
- Özer Erdem Gür
- Department of ENT, Antalya Education and Training Hospital, Antalya, Turkey
| | - Nuray Ensari
- Department of ENT, Antalya Education and Training Hospital, Antalya, Turkey
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Amar E, Snir N, Sher O, Brosh T, Khashan M, Salai M, Dolkart O. Platelet-rich plasma did not improve early healing of medial collateral ligament in rats. Arch Orthop Trauma Surg 2015; 135:1571-7. [PMID: 26298561 DOI: 10.1007/s00402-015-2306-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Indexed: 01/08/2023]
Abstract
BACKGROUND The medial collateral ligament (MCL) is the most frequently injured ligament of the knee. Platelet-rich plasma (PRP) is a relatively new treatment option developed to enhance the healing response after injury to different tissue types. This study aimed at investigating whether the addition of PRP to MCL tears in rats would alter healing both biomechanically and histologically. METHODS Bilateral full-thickness tears of the MCL were surgically induced in the knees of 32 rats. Right ligament was saturated with PRP (n = 32, study group), and the left ligament was saturated with saline (n = 32, control group). The animals were killed 3 weeks later and the surgical sites were evaluated by gross inspection, biomechanically and histologically. RESULTS There was no gross difference in the mass of granulation tissue, load to failure, stiffness and displacement between the study and control groups. Histological examination by means of maturity score revealed no significant differences between the study and control groups. CONCLUSION The addition of PRP to a healing MCL did not improve any of the outcome measures in this model.
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Affiliation(s)
- Eyal Amar
- Division of Orthopaedic Surgery, Tel Aviv Sourasky Medical Center, 6 Weizman Street, 64239, Tel Aviv, Israel
| | - Nimrod Snir
- Division of Orthopaedic Surgery, Tel Aviv Sourasky Medical Center, 6 Weizman Street, 64239, Tel Aviv, Israel
| | - Osnat Sher
- Division of Orthopaedic Surgery, Tel Aviv Sourasky Medical Center, 6 Weizman Street, 64239, Tel Aviv, Israel.,Pathology Institute, Tel Aviv Sourasky Medical Center, 6 Weizman Street, 64239, Tel Aviv, Israel
| | - Tamar Brosh
- Biomechanics Laboratory, School of Dental Medicine, Tel Aviv University Sackler Faculty of Medicine, Tel Aviv, Israel
| | - Morsi Khashan
- Division of Orthopaedic Surgery, Tel Aviv Sourasky Medical Center, 6 Weizman Street, 64239, Tel Aviv, Israel
| | - Moshe Salai
- Division of Orthopaedic Surgery, Tel Aviv Sourasky Medical Center, 6 Weizman Street, 64239, Tel Aviv, Israel
| | - Oleg Dolkart
- Division of Orthopaedic Surgery, Tel Aviv Sourasky Medical Center, 6 Weizman Street, 64239, Tel Aviv, Israel.
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Role of embedded pure xenogenous bovine platelet gel on experimental tendon healing, modelling and remodelling. BioDrugs 2015; 28:537-56. [PMID: 25227180 DOI: 10.1007/s40259-014-0107-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVES Surgical reconstruction of large tendon defects is technically demanding. In addition, tendon healing has poor quality and is associated with development of peritendinous adhesions. Tissue engineering and regenerative medicine is an option. A combination of scaffolds and factors that promote healing, such as a bioactive graft, could be a valuable strategy for treatment of the injured tendons. Different forms of platelets have been used for tendon healing. Since the availability and cost effectiveness of biomaterials are important in tissue engineering, bovine platelets could be a valuable alternative option for the autograft platelets. We investigated whether bovine platelet gel embedded within an artificial tendon could be effective in tendon healing and regeneration, in vivo. METHODS After in vitro evaluations, a large tendon defect model was produced in rabbits and the defect maintained align using Kessler suture. The animals were divided into four groups of control (no implant), treatment with collagen implant, collagen implant-polydioxanone sheath, and collagen implant-polydioxanone sheet-bovine platelet gel. The healing and regeneration were assessed by gross- micro- and nano-morphologic analyses, biomechanical testing, biochemistry, bioelectricity, and clinical evaluations at 60 and 120 days after injury. RESULTS Bovine platelet gel induced cellular proliferation and enhanced cell viability in vitro. In vivo, it significantly increased inflammation in the short term, enhanced cellular distribution, proliferation, migration, differentiation and matrix production at mid-term and finally it facilitated graft degradation, incorporation and acceptance in the newly regenerated tendon. Compared with the control groups, the platelet-treated neotendon had significantly higher mechanical strength which was due to the collagen fibril's better density, diameter, number, differentiation and distribution, collagen fibril to fiber and fiber bundle differentiation and lower peritendinous adhesion, muscle fibrosis and atrophy. CONCLUSION Bovine platelet gel-embedded artificial tendon could be considered as a new option in reconstruction and healing of large tendon defects.
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Kuffler DP. Platelet-Rich Plasma Promotes Axon Regeneration, Wound Healing, and Pain Reduction: Fact or Fiction. Mol Neurobiol 2015; 52:990-1014. [PMID: 26048672 DOI: 10.1007/s12035-015-9251-x] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Indexed: 11/25/2022]
Abstract
Platelet-rich plasma (PRP) has been tested in vitro, in animal models, and clinically for its efficacy in enhancing the rate of wound healing, reducing pain associated with injuries, and promoting axon regeneration. Although extensive data indicate that PRP-released factors induce these effects, the claims are often weakened because many studies were not rigorous or controlled, the data were limited, and other studies yielded contrary results. Critical to assessing whether PRP is effective are the large number of variables in these studies, including the method of PRP preparation, which influences the composition of PRP; type of application; type of wounds; target tissues; and diverse animal models and clinical studies. All these variables raise the question of whether one can anticipate consistent influences and raise the possibility that most of the results are correct under the circumstances where PRP was tested. This review examines evidence on the potential influences of PRP and whether PRP-released factors could induce the reported influences and concludes that the preponderance of evidence suggests that PRP has the capacity to induce all the claimed influences, although this position cannot be definitively argued. Well-defined and rigorously controlled studies of the potential influences of PRP are required in which PRP is isolated and applied using consistent techniques, protocols, and models. Finally, it is concluded that, because of the purported benefits of PRP administration and the lack of adverse events, further animal and clinical studies should be performed to explore the potential influences of PRP.
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Affiliation(s)
- Damien P Kuffler
- Institute of Neurobiology, University of Puerto Rico, Medical Sciences Campus, 201 Blvd. Del Valle, San Juan, 00901, Puerto Rico,
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Moshiri A, Oryan A, Meimandi-Parizi A. Synthesis, development, characterization and effectiveness of bovine pure platelet gel-collagen-polydioxanone bioactive graft on tendon healing. J Cell Mol Med 2015; 19:1308-32. [PMID: 25702535 PMCID: PMC4459846 DOI: 10.1111/jcmm.12511] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Accepted: 11/06/2014] [Indexed: 01/21/2023] Open
Abstract
Bovine platelet gel (BPG) is an accessible and cost-effective source of growth factors which may have a value in tendon regenerative medicine. We produced a collagen implant (CI) as a tendon proper, covered it with polydioxanone (PDS) sheath to simulate paratenon and finally embedded the BPG as an active source of growth factor within the bioimplant to test whether BPG would be able to accelerate and enhance tendon regeneration and repair. After in vitro characterization of the bioactive grafts, the grafts were implanted in rabbit large tendon defect model. Untreated tendons and tendons treated with either CI or CI-PDS were served as controls for the CI-PDS-BPG. The animals were investigated clinically, ultrasonographically and haematologically for 120 days. After euthanasia, dry matter content, water uptake and delivery characteristics and also gross morphological, histopathological and scanning electron microscopic features of the healing tendons were assessed. In vitro, the activated platelets in the scaffold, released their growth factors significantly more than the controls. BPG also increased cell viability, and enhanced cellular differentiation, maturation and proliferation inside the CI-PDS compared with the controls. In vivo, the BPG modulated inflammation, increased quality and rate of fibroplasia and produced a remodelled tendon that had significantly higher collagen content and superior collagen fibril and fibre differentiation than controls. Treatment also significantly improved tendon water uptake and delivery characteristics, animals' serum PDGF level, CI-PDS biocompatibility and biodegradability and reduced peritendinous adhesions, muscle fibrosis and atrophy. BPG was effective on tendon healing and CI-PDS-BPG may be a valuable bioscaffold in tendon reconstructive surgery.
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Affiliation(s)
- Ali Moshiri
- Division of Surgery and Radiology, Department of Clinical Science, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Abdolhamid Meimandi-Parizi
- Division of Surgery and Radiology, Department of Clinical Science, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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Zheng L, Wang L, Qin J, Sun X, Yang T, Ni Y, Zhou Y. New Biodegradable Implant Material Containing Hydrogel with Growth Factors of Lyophilized PRF in Combination with an nHA/PLGA Scaffold. J HARD TISSUE BIOL 2015. [DOI: 10.2485/jhtb.24.54] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ling Zheng
- Implant Center, Stomatology Hospital of Jilin University
| | - Lin Wang
- VIP Integrated Department, Stomatology Hospital of Jilin University
| | - Jie Qin
- Implant Center, Stomatology Hospital of Jilin University
| | - Xiaolin Sun
- Implant Center, Stomatology Hospital of Jilin University
| | - Tingting Yang
- Implant Center, Stomatology Hospital of Jilin University
| | - Yuxin Ni
- Implant Center, Stomatology Hospital of Jilin University
| | - Yanmin Zhou
- Implant Center, Stomatology Hospital of Jilin University
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Oryan A, Moshiri A, Meimandi-Parizi A, Maffulli N. Role of xenogenous bovine platelet gel embedded within collagen implant on tendon healing: an in vitro and in vivo study. Exp Biol Med (Maywood) 2014; 240:194-210. [PMID: 25341879 DOI: 10.1177/1535370214554532] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Surgical reconstruction of large Achilles tendon defects is demanding. Platelet concentrates may be useful to favor healing in such conditions. The characteristics of bovine platelet-gel embedded within a collagen-implant were determined in vitro, and its healing efficacy was examined in a large Achilles tendon defect in rabbits. Two cm of the left Achilles tendon of 60 rabbits were excised, and the animals were randomly assigned to control (no implant), collagen-implant, or bovine-platelet-gel-collagen-implant groups. The tendon edges were maintained aligned using a Kessler suture. No implant was inserted in the control group. In the two other groups, a collagen-implant or bovine-platelet-gel-collagen-implant was inserted in the defect. The bioelectricity and serum platelet-derived growth factor levels were measured weekly and at 60 days post injury, respectively. After euthanasia at 60 days post injury, the tendons were tested at macroscopic, microscopic, and ultrastructural levels, and their dry matter and biomechanical performances were also assessed. Another 60 rabbits were assigned to receive no implant, a collagen-implant, or a bovine-platelet-gel-collagen-implant, euthanized at 10, 20, 30, and 40 days post injury, and their tendons were evaluated grossly and histologically to determine host-graft interactions. Compared to the control and collagen-implant, treatment with bovine-platelet-gel-collagen-implant improved tissue bioelectricity and serum platelet-derived growth factor levels, and increased cell proliferation, differentiation, and maturation. It also increased number, diameter, and density of the collagen fibrils, alignment and maturation of the collagen fibrils and fibers, biomechanical properties and dry matter content of the injured tendons at 60 days post injury. The bovine-platelet-gel-collagen-implant also increased biodegradability, biocompatibility, and tissue incorporation behavior of the implant compared to the collagen-implant alone. This treatment also decreased tendon adhesion, muscle fibrosis, and atrophy, and improved the physical activity of the animals. The bovine-platelet-gel-collagen-implant was effective in neotenon formation in vivo, which may be valuable in the clinical setting.
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Affiliation(s)
- Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, 71345, Iran
| | - Ali Moshiri
- Division of Surgery and Radiology, Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, 71345, Iran
| | - Abdolhamid Meimandi-Parizi
- Division of Surgery and Radiology, Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, 71345, Iran
| | - Nicola Maffulli
- University of Salerno, Faculty of Medicine and Surgery, Department of Musculoskeletal Medicine and Surgery, and Centre for Sport and Exercise Medicine, Barts and the London School of Medicine and Dentistry, University of London, Queen Mary, E1 4DG, UK
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Moshiri A, Oryan A, Meimandi-Parizi A, Koohi-Hosseinabadi O. Effectiveness of xenogenous-based bovine-derived platelet gel embedded within a three-dimensional collagen implant on the healing and regeneration of the Achilles tendon defect in rabbits. Expert Opin Biol Ther 2014; 14:1065-89. [PMID: 24840092 PMCID: PMC4743604 DOI: 10.1517/14712598.2014.915305] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND AND OBJECTIVE Tissue engineering is an option in reconstructing large tendon defects and managing their healing and regeneration. We designed and produced a novel xenogeneic-based bovine platelet, embedded it within a tissue-engineered collagen implant (CI) and applied it in an experimentally induced large tendon defect model in rabbits to test whether bovine platelets could stimulate tendon healing and regeneration in vivo. METHODS One hundred twenty rabbits were randomly divided into two experimental and pilot groups. In all the animals, the left Achilles tendon was surgically excised and the tendon edges were aligned by Kessler suture. Each group was then divided into three groups of control (no implant), treated with CI and treated with collagen-platelet implant. The pilot groups were euthanized at 10, 15, 30 and 40 days post-injury (DPI), and their gross and histologic characteristics were evaluated to study host-graft interaction mechanism. To study the tendon healing and its outcome, the experimental animals were tested during the experiment using hematologic, ultrasonographic and various methods of clinical examinations and then euthanized at 60 DPI and their tendons were evaluated by gross pathologic, histopathologic, scanning electron microscopic, biophysical and biochemical methods. RESULTS Bovine platelets embedded within a CI increased inflammation at short term while it increased the rate of implant absorption and matrix replacement compared with the controls and CI alone. Treatment also significantly increased diameter, density, amount, alignment and differentiation of the collagen fibrils and fibers and approximated the water uptake and delivery behavior of the healing tendons to normal contralaterals (p < 0.05). Treatment also improved echogenicity and homogenicity of the tendons and reduced peritendinous adhesion, muscle fibrosis and atrophy, and therefore, it improved the clinical scores and physical activity related to the injured limb when compared with the controls (p < 0.05). CONCLUSION The bovine platelet gel embedded within the tissue-engineered CI was effective in healing, modeling and remodeling of the Achilles tendon in rabbit. This strategy may be a valuable option in the clinical setting.
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Affiliation(s)
- Ali Moshiri
- Division of Surgery and Radiology, Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University , Shiraz , Iran +98 9123409835 ;
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Lyophilized platelet-rich fibrin (PRF) promotes craniofacial bone regeneration through Runx2. Int J Mol Sci 2014; 15:8509-25. [PMID: 24830554 PMCID: PMC4057745 DOI: 10.3390/ijms15058509] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 04/01/2014] [Accepted: 04/15/2014] [Indexed: 11/16/2022] Open
Abstract
Freeze-drying is an effective means to control scaffold pore size and preserve its composition. The purpose of the present study was to determine the applicability of lyophilized Platelet-rich fibrin (LPRF) as a scaffold for craniofacial tissue regeneration and to compare its biological effects with commonly used fresh Platelet-rich fibrin (PRF). LPRF caused a 4.8-fold±0.4-fold elevation in Runt-related transcription factor 2 (Runx2) expression in alveolar bone cells, compared to a 3.6-fold±0.2-fold increase when using fresh PRF, and a more than 10-fold rise of alkaline phosphatase levels and mineralization markers. LPRF-induced Runx2 expression only occurred in alveolar bone and not in periodontal or dental follicle cells. LPRF also caused a 1.6-fold increase in osteoblast proliferation (p<0.001) when compared to fresh PRF. When applied in a rat craniofacial defect model for six weeks, LPRF resulted in 97% bony coverage of the defect, compared to 84% for fresh PRF, 64% for fibrin, and 16% without scaffold. Moreover, LPRF thickened the trabecular diameter by 25% when compared to fresh PRF and fibrin, and only LPRF and fresh PRF resulted in the formation of interconnected trabeculae across the defect. Together, these studies support the application of lyophilized PRF as a biomimetic scaffold for craniofacial bone regeneration and mineralized tissue engineering.
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