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Zapata-Sifuentes M, Quispe-Salcedo A, Watanabe T, Kawase T, Ohshima H. Effect of leukocyte and platelet-rich plasma on osseointegration after implant placement in mouse maxilla. Regen Ther 2024; 26:741-748. [PMID: 39290631 PMCID: PMC11406024 DOI: 10.1016/j.reth.2024.08.019] [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: 06/12/2024] [Revised: 07/26/2024] [Accepted: 08/28/2024] [Indexed: 09/19/2024] Open
Abstract
Introduction Osseointegration, the direct contact between an implant and bone, can be achieved by direct and/or indirect osteogenesis. Platelet-rich plasma accelerates tissue regeneration, wound healing, and osseointegration. This study aimed to analyze the effects of leukocyte and platelet-rich plasma (L-PRP) on direct and indirect osteogenesis after implant placement in a mouse maxilla. Methods Blood was collected from the tail vein of 4-8-week-old male ICR mice and L-PRP was obtained after double-spin cycle centrifugation. After the right upper first molars of 4-week-old ICR mice were extracted while under deep anesthesia, the alveolar sockets were prepared with a drill, and titanium implants blasted with hydroxyapatite/β-tricalcium phosphate were placed into the cavity filled with 1.5 μL of L-PRP. Samples were collected from the animals 3-28 days after implantation, and immunohistochemistry for osteopontin, Ki67 (cell proliferation marker), cathepsin-K (osteoclast marker), and osteonectin (osteoblast marker) was performed. Results Cell proliferation was significantly higher in the L-PRP group than in the control group on postoperative days 3 and 5. The activities of osteoclast-lineage cells and osteoblasts increased significantly on day 5 in the L-PRP group, indicating that L-PRP evoked an active cellular response. Indirect osteogenesis was significantly higher on days 7, 14, and 28, and the osseointegration rate was significantly higher on day 28 in the L-PRP group compared with the control group. Conclusions L-PRP enhances osseointegration by promoting mesenchymal cell proliferation, osteoclastic and osteoblastic activities, and indirect osteogenesis.
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Affiliation(s)
- Mauricio Zapata-Sifuentes
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Angela Quispe-Salcedo
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Taisuke Watanabe
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hayato Ohshima
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Asefifeyzabadi N, Nguyen T, Li H, Zhu K, Yang HY, Baniya P, Medina Lopez A, Gallegos A, Hsieh HC, Dechiraju H, Hernandez C, Schorger K, Recendez C, Tebyani M, Selberg J, Luo L, Muzzy E, Hsieh C, Barbee A, Orozco J, Alhamo MA, Levin M, Aslankoohi E, Gomez M, Zhao M, Teodorescu M, Isseroff RR, Rolandi M. A pro-reparative bioelectronic device for controlled delivery of ions and biomolecules. Wound Repair Regen 2024. [PMID: 38794912 DOI: 10.1111/wrr.13191] [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] [Received: 08/29/2023] [Revised: 03/28/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024]
Abstract
Wound healing is a complex physiological process that requires precise control and modulation of many parameters. Therapeutic ion and biomolecule delivery has the capability to regulate the wound healing process beneficially. However, achieving controlled delivery through a compact device with the ability to deliver multiple therapeutic species can be a challenge. Bioelectronic devices have emerged as a promising approach for therapeutic delivery. Here, we present a pro-reparative bioelectronic device designed to deliver ions and biomolecules for wound healing applications. The device incorporates ion pumps for the targeted delivery of H+ and zolmitriptan to the wound site. In vivo studies using a mouse model further validated the device's potential for modulating the wound environment via H+ delivery that decreased M1/M2 macrophage ratios. Overall, this bioelectronic ion pump demonstrates potential for accelerating wound healing via targeted and controlled delivery of therapeutic agents to wounds. Continued optimization and development of this device could not only lead to significant advancements in tissue repair and wound healing strategies but also reveal new physiological information about the dynamic wound environment.
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Affiliation(s)
- Narges Asefifeyzabadi
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Tiffany Nguyen
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Houpu Li
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Kan Zhu
- Department of Ophthalmology, School of Medicine, University of California Davis, Davis, California, USA
| | - Hsin-Ya Yang
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Prabhat Baniya
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Andrea Medina Lopez
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Anthony Gallegos
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Hao-Chieh Hsieh
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Harika Dechiraju
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Cristian Hernandez
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Kaelan Schorger
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Cynthia Recendez
- Department of Ophthalmology, School of Medicine, University of California Davis, Davis, California, USA
| | - Maryam Tebyani
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - John Selberg
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Le Luo
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Elana Muzzy
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Cathleen Hsieh
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
- Department of Chemistry and Biochemistry, University of California Santa Cruz, California, Santa Cruz, USA
| | - Alexie Barbee
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Jonathan Orozco
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
- Department of Economics, University of California Santa Cruz, Santa Cruz, California, USA
| | - Moyasar A Alhamo
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Michael Levin
- Department of Biology, Tufts University, Medford, Massachusetts, USA
| | - Elham Aslankoohi
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Marcella Gomez
- Department of Applied Mathematics, University of California Santa Cruz, Santa Cruz, California, USA
| | - Min Zhao
- Department of Ophthalmology, School of Medicine, University of California Davis, Davis, California, USA
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Mircea Teodorescu
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Roslyn Rivkah Isseroff
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
- Dermatology Section, VA Northern California Health Care System, Mather, California, USA
| | - Marco Rolandi
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
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Su L, Xie S, Li T, Jia Y, Wang Y. Pretreatment with platelet-rich plasma protects against ischemia-reperfusion induced flap injury by deactivating the JAK/STAT pathway in mice. Mol Med 2024; 30:18. [PMID: 38302877 PMCID: PMC10835983 DOI: 10.1186/s10020-024-00781-3] [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: 08/08/2023] [Accepted: 01/08/2024] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Ischemia-reperfusion (I/R) injury is a major cause of surgical skin flap compromise and organ dysfunction. Platelet-rich plasma (PRP) is an autologous product rich in growth factors, with tissue regenerative potential. PRP has shown promise in multiple I/R-induced tissue injuries, but its effects on skin flap injury remain unexplored. METHODS We evaluated the effects of PRP on I/R-injured skin flaps, optimal timing of PRP administration, and the involved mechanisms. RESULTS PRP protected against I/R-induced skin flap injury by improving flap survival, promoting blood perfusion and angiogenesis, suppressing oxidative stress and inflammatory response, and reducing apoptosis, at least partly via deactivating Janus kinase (JAK)-signal transducers and activators of transcription (STAT) signalling pathway. PRP given before ischemia displayed overall advantages over that given before reperfusion or during reperfusion. In addition, PRP pretreatment had a stronger ability to reverse I/R-induced JAK/STAT activation and apoptosis than AG490, a specific inhibitor of JAK/STAT signalling. CONCLUSIONS This study firstly demonstrates the protective role of PRP against I/R-injured skin flaps through negative regulation of JAK/STAT activation, with PRP pretreatment showing optimal therapeutic effects.
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Affiliation(s)
- Linlin Su
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China.
| | - Songtao Xie
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Ting Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Yanhui Jia
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Yunchuan Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, No.127 Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China.
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Chen CF, Wang PF, Liao HT. Platelet-Rich Plasma Lysate Enhances the Osteogenic Differentiation of Adipose-Derived Stem Cells. Ann Plast Surg 2024; 92:S12-S20. [PMID: 38285990 DOI: 10.1097/sap.0000000000003765] [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: 01/31/2024]
Abstract
ABSTRACT Adipose-derived stem cells (ADSCs) have become an accepted source of cells in bone tissue engineering. This study aimed to investigate whether platelet-rich plasma (PRP) lysate can replace traditional fetal bovine serum as a culture medium with the enhanced proliferation and osteogenic potential of ADSCs. We divided the experiment into 5 groups where the ADSCs were cultured in an osteogenic medium containing 2.5%, 5%, 7.5%, and 10% PRP lysate with 10% fetal bovine serum as the control group. The cell proliferation, alkaline phosphatase (ALP) activity, ALP stain, alizarin red stain, osteocalcin (OCN) protein expression, and osteogenic-specific gene expression were analyzed and compared among these groups. The outcome showed that all PRP lysate-treated groups had good ALP stain and ALP activity performance. Better alizarin red stains were found in the 2.5%, 5%, and 7.5% PRP lysate groups. The 2.5% and 5% PRP lysate groups showed superior results in OCN quantitative polymerase chain reaction, whereas the 5% and 7.5% PRP lysate groups showed higher OCN protein expressions. Early RUNX2 (Runt-related transcription factor 2 () genes were the most expressed in the 5% PRP lysate group, followed by the 2.5% PRP lysate group, and then the 7.5% PRP lysate group. Thus, we concluded that 5% PRP lysate seemed to provide the optimal effect on enhancing the osteogenic potential of ADSCs. Platelet-rich plasma lysate-treated ADSCs were considered to be a good cell source for application in treating nonunion or bone defects in the future.
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Affiliation(s)
- Chia-Fang Chen
- Division of Trauma Plastic Surgery, Department of Plastic and Reconstructive Surgery
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Manole CG, Soare C, Ceafalan LC, Voiculescu VM. Platelet-Rich Plasma in Dermatology: New Insights on the Cellular Mechanism of Skin Repair and Regeneration. Life (Basel) 2023; 14:40. [PMID: 38255655 PMCID: PMC10817627 DOI: 10.3390/life14010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/30/2023] [Accepted: 12/19/2023] [Indexed: 01/24/2024] Open
Abstract
The skin's recognised functions may undergo physiological alterations due to ageing, manifesting as varying degrees of facial wrinkles, diminished tautness, density, and volume. Additionally, these functions can be disrupted (patho)physiologically through various physical and chemical injuries, including surgical trauma, accidents, or chronic conditions like ulcers associated with diabetes mellitus, venous insufficiency, or obesity. Advancements in therapeutic interventions that boost the skin's innate regenerative abilities could significantly enhance patient care protocols. The application of Platelet-Rich Plasma (PRP) is widely recognized for its aesthetic and functional benefits to the skin. Yet, the endorsement of PRP's advantages often borders on the dogmatic, with its efficacy commonly ascribed solely to the activation of fibroblasts by the factors contained within platelet granules. PRP therapy is a cornerstone of regenerative medicine which involves the autologous delivery of conditioned plasma enriched by platelets. This is achieved by centrifugation, removing erythrocytes while retaining platelets and their granules. Despite its widespread use, the precise sequences of cellular activation, the specific cellular players, and the molecular machinery that drive PRP-facilitated healing are still enigmatic. There is still a paucity of definitive and robust studies elucidating these mechanisms. In recent years, telocytes (TCs)-a unique dermal cell population-have shown promising potential for tissue regeneration in various organs, including the dermis. TCs' participation in neo-angiogenesis, akin to that attributed to PRP, and their role in tissue remodelling and repair processes within the interstitia of several organs (including the dermis), offer intriguing insights. Their potential to contribute to, or possibly orchestrate, the skin regeneration process following PRP treatment has elicited considerable interest. Therefore, pursuing a comprehensive understanding of the cellular and molecular mechanisms at work, particularly those involving TCs, their temporal involvement in structural recovery following injury, and the interconnected biological events in skin wound healing and regeneration represents a compelling field of study.
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Affiliation(s)
- Catalin G. Manole
- Department of Cellular and Molecular Biology and Histology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Ultrastructural Pathology Laboratory, “Victor Babeș” National Institute of Pathology, 050096 Bucharest, Romania
| | - Cristina Soare
- Department of Oncological Dermatology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Laura Cristina Ceafalan
- Department of Cellular and Molecular Biology and Histology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Cell Biology, Neurosciences and Experimental Myology Laboratory, “Victor Babeș” National Institute of Pathology, 050096 Bucharest, Romania
| | - Vlad M. Voiculescu
- Department of Oncological Dermatology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
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Zhang K, Xu T, Xie H, Li J, Fu W. Donor-Matched Peripheral Blood-Derived Mesenchymal Stem Cells Combined With Platelet-Rich Plasma Synergistically Ameliorate Surgery-Induced Osteoarthritis in Rabbits: An In Vitro and In Vivo Study. Am J Sports Med 2023; 51:3008-3024. [PMID: 37528751 DOI: 10.1177/03635465231187042] [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] [Indexed: 08/03/2023]
Abstract
BACKGROUND Osteoarthritis (OA) is a common disease that causes joint pain and disability. Stem cell therapy is emerging as a promising treatment for OA. PURPOSE To evaluate the ability of peripheral blood-derived mesenchymal stem cells (PBMSCs) combined with donor-matched platelet-rich plasma (PRP) to treat OA in a rabbit model. STUDY DESIGN Controlled laboratory study. METHODS PBMSCs and donor-matched PRP were isolated and prepared from the same rabbit. PBMSCs were treated with serum-free medium, fetal bovine serum, and PRP; a series of PBMSC behaviors, including proliferation, migration, and adhesion, were compared among groups. The ability of PBMSCs or PRP alone and PBMSCs+PRP to protect chondrocytes against proinflammatory cytokine (interleukin 1β [IL-1β]) treatment was compared by analyzing reactive oxygen species (ROS)-scavenging ability and apoptosis. Real-time quantitative polymerase chain reaction and immunofluorescence were used to investigate the expression of extracellular matrix (ECM) metabolism genes and proteins, and Western blotting was used to explore the potential mechanism of the corresponding signaling pathway. In vivo, the effect of PBMSCs+PRP on cartilage and inflammation of the synovium was observed in a surgery-induced OA rabbit model via gross observation, histological and immunohistochemical staining, and enzyme-linked immunosorbent assay. RESULTS Proliferation, migration, and adhesion ability were enhanced in PBMSCs treated with PRP. Moreover, compared with either PBMSCs or PRP alone, PBMSCs+PRP enhanced ROS-scavenging ability and inhibited apoptosis in IL-1β-treated chondrocytes. PBMSCs+PRP also reversed the IL-1β-induced degradation of collagen type 2 and aggrecan and increased expression of matrix metalloproteinase 13, and this effect was related to increased expression of ECM synthesis and decreased expression of degradation and inflammatory genes and proteins. Mechanistically, PBMSCs+PRP reduced the phosphorylation of inhibitor of nuclear factor-κBα (IκBα), which further inhibited the phosphorylation of downstream nuclear factor-κB (NF-κB) in the NF-κB signaling pathway. In vivo, compared with PBMSCs or PRP alone, intra-articular (IA) injection of PBMSCs+PRP enhanced cartilage regeneration and attenuated synovial inflammation in OA-induced rabbits. CONCLUSION These results demonstrate that PRP could enhance biological activities, including viability, migration, and adhesion, in PBMSCs. PBMSCs+PRP could rescue ECM degeneration by inhibiting inflammatory signaling in IL-1β-treated OA chondrocytes. In addition, IA injection of PBMSCs+PRP effectively attenuated OA progression in a surgery-induced OA rabbit model. CLINICAL RELEVANCE PBMSCs+PRP may provide a promising treatment for knee OA, and this study can advance the related basic research.
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Affiliation(s)
- Kaibo Zhang
- Sports Medicine Center, Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Tianhao Xu
- Sports Medicine Center, Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Huiqi Xie
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jian Li
- Sports Medicine Center, Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Weili Fu
- Sports Medicine Center, Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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7
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Derwin R, Patton D, Strapp H, Moore Z. Wound pH and temperature as predictors of healing: an observational study. J Wound Care 2023; 32:302-310. [PMID: 37094930 DOI: 10.12968/jowc.2023.32.5.302] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
OBJECTIVE The aim of this study was to measure wound pH, wound temperature and wound size together to gain further understanding of their impact as predictors of wound healing outcomes. METHOD This study employed a quantitative non-comparative, prospective, descriptive observational design. Participants with both acute and hard-to-heal (chronic) wounds were observed weekly for four weeks. Wound pH was measured using pH indicator strips, wound temperature was measured using an infrared camera and wound size was measured using the ruler method. RESULTS Most of the 97 participants (65%, n=63) were male; participant's ages ranged between 18 and 77 years (mean: 42±17.10. Most of the wounds observed were surgical 60%, (n=58) and 72% (n=70) of the wounds were classified as acute, with 28% (n=27) classified as hard-to-heal wounds. At baseline, there was no significant difference in pH between acute and hard-to-heal wounds; overall the mean pH was 8.34±0.32, mean temperature was 32.86±1.78°C) and mean wound area was 910.50±1132.30mm2. In week 4, mean pH was 7.71±1.11, mean temperature was 31.90±1.76°C and mean wound area was 339.90±511.70mm2. Over the study follow-up period, wound pH ranged from 5-9, from week 1 to week 4, mean pH reduced by 0.63 units from 8.34 to 7.71. Furthermore, there was a mean 3% reduction in wound temperature and a mean 62% reduction in wound size. CONCLUSION The study demonstrated that a reduction in pH and temperature was associated with increased wound healing as evidenced by a corresponding reduction in wound size. Thus, measuring pH and temperature in clinical practice may provide clinically meaningful data pertaining to wound status.
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Affiliation(s)
- Rosemarie Derwin
- School of Nursing and Midwifery, Royal College of Surgeons in Ireland (RCSI), University of Medicine and Health Sciences, Dublin
| | - Declan Patton
- School of Nursing and Midwifery, Royal College of Surgeons in Ireland (RCSI), University of Medicine and Health Sciences, Dublin
- Fakeeh College of Health Sciences, Jeddah, Saudi Arabia
- Faculty of Science, Medicine and Health, University of Wollongong, Australia
| | | | - Zena Moore
- School of Nursing and Midwifery, Royal College of Surgeons in Ireland (RCSI), University of Medicine and Health Sciences, Dublin
- School of Nursing & Midwifery, Griffith University, Queensland, Australia
- School of Health Sciences, Faculty of Life and Health Sciences Ulster University, Northern Ireland
- Cardiff University, Cardiff, Wales
- Department of Nursing, Fakeeh College for Medical Sciences, Jeddah, KSA
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, Belgium
- Lida Institute, Shanghai, China
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8
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Lu M, Zhang X, Xu D, Li N, Zhao Y. Encoded Structural Color Microneedle Patches for Multiple Screening of Wound Small Molecules. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211330. [PMID: 36905684 DOI: 10.1002/adma.202211330] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/02/2023] [Indexed: 05/12/2023]
Abstract
Detection of biomarkers associated with wound conditions provides in-depth healthcare information and benefits wound healing treatment. The current aim of wound detection is to achieve in situ multiple detections. Novel encoded structural color microneedle patches (EMNs) combining photonic crystals (PhCs) and microneedle arrays (MNs) for multiple wound biomarker detection in situ are described here. Using a partitioned and layered casting strategy, the EMNs can be divided into different modules and each serves for the detection of small molecules , including pH, glucose, and histamine. pH sensing is based on the interaction between hydrogen ions and carboxyl groups from hydrolyzed polyacrylamide (PAM); glucose sensing is achieved with the help of glucose-responsive fluorophenylboronic acid (FPBA); while histamine sensing relies on specific recognition of aptamers and target molecules. Owing to the responsive volume change of these three modules in the presence of target molecules, the EMNs can create structural color change and characteristic peak shift of the PhCs, thus realizing the qualitative measurement of target molecules with a spectrum analyzer. It is further demonstrated that the EMNs behave well in the multivariate detection of rat wound molecules. These features indicate that the EMNs can be valuable smart detection systems for wound status screening.
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Affiliation(s)
- Minhui Lu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Xiaoxuan Zhang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Dongyu Xu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Ning Li
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Yuanjin Zhao
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325001, P. R. China
- Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing, 210023, China
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9
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Prasad Mahindrakar B, Goswami AG, Huda F, Naithani M, Basu S. Wound pH and Surface Temperature as a Predictive Biomarker of Healing in Diabetic Foot Ulcers. INT J LOW EXTR WOUND 2023. [DOI: 10.1177/15347346231156962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Aim To monitor wound pH and surface temperature as predictors of wound healing in diabetic foot ulcers (DFU). Methods Prospective, observational, time-bound study of 18 months, enrolling patients aged 18 to 60 years with uninfected DFU. The wound was assessed at baseline and after that, every week for 4 weeks according to the leg ulcer measurement tool (LUMT). Concurrently, wound surface pH and temperature were measured. The data were analyzed using descriptive statistics, and a P-value < .05 was considered statistically significant. Results Fifty-four patients with DFU were included in the study with a mean age of 55 years and a male to female ratio of 1.57. The wound showed progressive improvement, a maximum mean LUMT score of 48.89 (± 2.81) at the initial evaluation and decreased progressively to the mean of 19.80 at week 4 (± 3.43), both of which were statistically significant ( P-value < .001). Similarly, the median wound pH progressively reduced from 7.7 at baseline to 7.20 in the fourth week, and median wound temperature decreased from 90°F (32.22 °C) at baseline to 85°F (29.44 °C) in the fourth week, both of which were statistically significant ( P-value < .001). Conclusion Progressive and significant change in wound pH to acidic and drop in wound surface temperature, both corresponding to improvement in the status of DFU, maximum at 4 weeks, make them valuable predictors of wound healing. However, further, more extensive studies are required to establish a concrete relationship.
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Affiliation(s)
| | | | - Farhanul Huda
- Department of Surgery, All India Institute of Medical Sciences, Rishikesh, India
| | - Manisha Naithani
- Department of Biochemistry, All India Institute of Medical Sciences, Rishikesh, India
| | - Somprakas Basu
- Department of Surgery, Himalayan Institute of Medical Sciences, Dehradun, Uttarakhand, India
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10
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Calabrese EJ, Kapoor R, Dhawan G, Calabrese V. Hormesis mediates platelet-rich plasma and wound healing. Wound Repair Regen 2023; 31:56-68. [PMID: 36458897 DOI: 10.1111/wrr.13060] [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: 06/02/2022] [Revised: 10/06/2022] [Accepted: 11/08/2022] [Indexed: 12/03/2022]
Abstract
Platelet-rich plasma (PRP) has become an accepted and general wound healing approach with an extremely wide range of applications. Despite considerable diversity in the composition of platelet-rich plasma products that are applied in specific wound healing usage, it is widely recognised that such diverse platelet-rich plasma complex mixtures routinely display hormetic-like biphasic concentrations that are independent of the tissue treated and endpoints measured. The present paper is the first to place the area of platelet-rich plasma-biomedical research and applications within an hormetic framework. The platelet-rich plasma area is also unique as it represents the application of the hormetic concept to the issue of complex biological mixtures.
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Affiliation(s)
- Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, Massachusetts, USA
| | - Rachna Kapoor
- Saint Francis Hospital and Medical Center, Hartford, Connecticut, USA
| | - Gaurav Dhawan
- Sri Guru Ram Das (SGRD) University of Health Sciences, Amritsar, India
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, Catania, Italy
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11
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Zhang Z, Qiu L, Cui D, Geng J, Yi C. Use of platelet-rich fibrin in fat grafts during facial lipostructure. Front Surg 2022; 9:923342. [PMID: 36386545 PMCID: PMC9648349 DOI: 10.3389/fsurg.2022.923342] [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: 04/19/2022] [Accepted: 10/03/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND This review was designed to discuss the safety and efficacy of using platelet-rich fibrin (PRF) in fat grafts during facial lipostructure. METHODS From January 2018 to December 2021, 650 fat grafts for facial lipostructure were performed in the authors' department. According to their wishes, we divided the patients into two groups: 498 patients were treated with autologous fat injection (control group), and 152 patients were treated with autologous fat injection combined with PRF. All of the patients were monitored for at least six months. The effects were evaluated via physician assessment and patient satisfaction rates, and the incidences of complications were compared. RESULTS All the cases had a degree of improvement after treatment. The patient satisfaction rate was 55.3% in the PRF group and 43.4% in the control group. In all, 68.4% of the patients in the PRF group and 58.2% in the control group indicated that one-stage surgery was sufficient to achieve the desired effect. According to the evaluation conducted by the plastic surgeon, 59.2% of patients in the PRF group and 47.0% in the control group achieved a perfect effect. A total of 76.3% of patients in the PRF group and 63.9% in the control group reported that one surgery achieved satisfactory results. The difference between the PRF and control groups was statistically significant. CONCLUSION Using an autologous fat graft during facial lipostructure is beneficial and safe when combined with PRF. The combination may enhance the effect and satisfaction rate. Further research and prospective clinical studies are needed to understand the role of PRF in fat grafting.
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12
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Jasmine S, Thangavelu A, Veeravarmal V, Vijayakumar N, Khan JM, Ahmad A. Quantitative assessment of platelet rich fibrin for the repair of extraction socket in a rat model. Int J Biol Macromol 2022; 222:1168-1174. [PMID: 36179874 DOI: 10.1016/j.ijbiomac.2022.09.235] [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: 09/07/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/30/2022]
Abstract
The present study evaluated the quantitative effects of platelet-rich fibrin (PRF) for the repair of extraction socket in Sprague Dawley (SD) rat model by assessing several key clinical parameters. Seventy two male SD rats were subjected to surgical extraction of the maxillary right incisor. Rats were randomly divided into four groups with eighteen rats in each group based on the treatment received: extraction socket without treatment of PRF was taken as control (group I). Extraction socket implanted with 0.1, 0.2, and 0.4 mL of PRF was taken as study groups (groups II, III, and IV). The obtained results demonstrated that, low dose of PRF efficiently enhanced the natural healing cascade. Whereas, high dose interfered with native tissue contribution and altered the natural healing process. The beneficial effects of quantity-based application of PRF may raise the possibility of a new approach as complementary therapy besides conventional treatment.
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Affiliation(s)
- Sharmila Jasmine
- Department of Oral Maxillofacial surgery, Rajas Dental College and Hospital, Kavalkinaru, Tirunelveli 627105, Tamil Nadu, India.
| | - Annamalai Thangavelu
- Department of Oral Maxillofacial surgery, Rajah Muthiah Dental College and Hospital, Annamalai University, Annamalainagar - 608002, Chidambaram, Tamil Nadu, India
| | - Veeran Veeravarmal
- Department of Oral Maxillofacial Pathology and Oral Microbiology, Rajah Muthiah Dental College and Hospital, Annamalai University, Annamalainagar - 608002, Chidambaram, Tamil Nadu, India
| | - Natesan Vijayakumar
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar - 608002, Chidambaram, Tamilnadu, India
| | - Javed Masood Khan
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Anis Ahmad
- Miller School of Medicine, University of Miami, FL-33136, USA
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13
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Buzalaf MAR, Levy FM. Autologous platelet concentrates for facial rejuvenation. J Appl Oral Sci 2022; 30:e20220020. [PMID: 36074433 PMCID: PMC9444188 DOI: 10.1590/1678-7757-2022-0020] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 07/02/2022] [Indexed: 12/04/2022] Open
Abstract
Autologous platelet concentrates (APCs) are promising therapeutic agents in facial rejuvenation since they are a great source of cytokines, growth factors and other biologically active substances. Obtained from the patient’s blood, they have the advantages of reducing immunological reactions, making the procedure safer, well tolerated, with minimal adverse effects and lower cost. Currently, they are used for facial rejuvenation both in combination with microneedling and in mesotherapy techniques, as well as to treat facial acne scars, melasma and wounds after laser ablative treatments. This review summarizes current knowledge on the use of APCs, ranging from basic concepts related to their composition and mechanisms of action to up-to-date information on their clinical efficacy.
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Affiliation(s)
- Marília Afonso Rabelo Buzalaf
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, SP, Brasil
| | - Flávia Mauad Levy
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, SP, Brasil
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14
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Nguyen M, Nguyen TT, Tran HLB, Tran DN, Ngo LTQ, Huynh NC. Effects of advanced platelet-rich fibrin combined with xenogenic bone on human periodontal ligament stem cells. Clin Exp Dent Res 2022; 8:875-882. [PMID: 35338771 PMCID: PMC9382045 DOI: 10.1002/cre2.563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 03/07/2022] [Accepted: 03/11/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES In this study, we aimed to investigate the effects of a mixture of advanced platelet-rich fibrin (A-PRF) and xenogenic bone substitute material (XBSM) on the proliferation and migration of human periodontal ligament stem cells (hPDLSCs) based on the in vitro release of growth factors. MATERIAL AND METHODS The concentrations of platelet-derived growth factor-AB (PDGF-AB) and vascular endothelial growth factor (VEGF) released by the A-PRF-XBSM mixture were estimated using enzyme-linked immunoassay for up to 7 d. The A-PRF-XBSM mixture exudate was incubated with hPDLSCs. At Days 1, 3, 5, and 7, cell proliferation and migration were investigated by cell counting and wound-healing assays. RESULTS PDGD-AB and VEGF were released from the A-PRF-XBSM mixture exudate for up to 7 days. hPDLSCs were cultured in media with various concentrations of the A-PRF-XBSM mixture exudate and exhibited their proliferation and migration ability. Furthermore, the factors released from the 100% A-PRF-XBSM mixture exudate had a substantial effect on cell migration, whereas those released from 4% and 20% A-PRF-XBSM mixture exudates stimulated hPDLSC proliferation. CONCLUSIONS A-PRF-XBSM mixture continuously released growth factors over 7 days and enhanced hPDLSC proliferation and migration. Therefore, A-PRF in combination with XBSM might provide potential advantages for periodontal tissue regeneration.
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Affiliation(s)
- Meo Nguyen
- Department of Periodontology, Faculty of Odonto‐StomatologyUniversity of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam
| | - Thuy Thu Nguyen
- Department of Periodontology, Faculty of Odonto‐StomatologyUniversity of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam
| | - Ha Le Bao Tran
- Laboratory of Tissue Engineering and Biomedical Materials, Department of Physiology and Animal Biotechnology, Faculty of Biology‐Biotechnology, University of ScienceVietnam National UniversityHo Chi Minh CityVietnam
| | - Dang Ngoc Tran
- Faculty of Public HealthUniversity of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam
| | - Lan Thi Quynh Ngo
- Department of Dental Basic Sciences, Faculty of Odonto‐StomatologyUniversity of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam
| | - Nam Cong‐Nhat Huynh
- Department of Dental Basic Sciences, Faculty of Odonto‐StomatologyUniversity of Medicine and Pharmacy at Ho Chi Minh CityHo Chi Minh CityVietnam
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15
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Morrison KD, Martin KA, Wimpenny JB, Loots GG. Synthetic antibacterial minerals: harnessing a natural geochemical reaction to combat antibiotic resistance. Sci Rep 2022; 12:1218. [PMID: 35075234 PMCID: PMC8786894 DOI: 10.1038/s41598-022-05303-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 12/15/2021] [Indexed: 01/14/2023] Open
Abstract
The overuse of antibiotics in clinical and livestock settings is accelerating the selection of multidrug resistant bacterial pathogens. Antibiotic resistant bacteria result in increased mortality and financial strain on the health care and livestock industry. The development of new antibiotics has stalled, and novel strategies are needed as we enter the age of antibiotic resistance. Certain naturally occurring clays have been shown to have antimicrobial properties and kill antibiotic resistant bacteria. Harnessing the activity of compounds within these clays that harbor antibiotic properties offers new therapeutic opportunities for fighting the potentially devastating effects of the post antibiotic era. However, natural samples are highly heterogenous and exhibit variable antibacterial effectiveness, therefore synthesizing minerals of high purity with reproducible antibacterial activity is needed. Here we describe for the first time synthetic smectite clay minerals and Fe-sulfide microspheres that reproduce the geochemical antibacterial properties observed in natural occurring clays. We show that these mineral formulations are effective at killing the ESKAPE pathogens (Enterococcus sp., Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter sp., Pseudomonas aeruginosa and Enterobacter sp.) by maintaining Fe2+ solubility and reactive oxygen species (ROS) production while buffering solution pH, unlike the application of metals alone. Our results represent the first step in utilizing a geochemical process to treat antibiotic resistant topical or gastrointestinal infections in the age of antibiotic resistance.
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Affiliation(s)
- Keith D Morrison
- Nuclear and Chemical Sciences Division, Physical and Life Sciences, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
| | - Kelly A Martin
- Biosciences and Biotechnology Division, Physical and Life Sciences, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - Josh B Wimpenny
- Nuclear and Chemical Sciences Division, Physical and Life Sciences, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - Gabriela G Loots
- Biosciences and Biotechnology Division, Physical and Life Sciences, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
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16
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Luo Q, Zhou P, Chang S. Meta‐analysis of platelet‐rich plasma therapy for anal fistula. J Cosmet Dermatol 2022; 21:4559-4566. [PMID: 35049123 DOI: 10.1111/jocd.14760] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/29/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Qinghua Luo
- Department of Anorectal Surgery Wuyi Hospital of Traditional Chinese Medicine Jiangmen China
| | - Ping Zhou
- Department of Anorectal Surgery Jiangxi Hospital of Integrated Traditional Chinese and Western Medicine Nanchang China
| | - Shuangqing Chang
- Department of Anorectal Surgery Wuyi Hospital of Traditional Chinese Medicine Jiangmen China
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17
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Tang N, Zheng Y, Cui D, Haick H. Multifunctional Dressing for Wound Diagnosis and Rehabilitation. Adv Healthc Mater 2021; 10:e2101292. [PMID: 34310078 DOI: 10.1002/adhm.202101292] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Indexed: 12/12/2022]
Abstract
A wound dressing is a sterile pad or compress that is used in direct contact with a wound to help it heal and prevent further issues or complications. Though wound healing is an intricate dynamic process that involves multiple biomolecular species, conventional wound dressings have a limited ability to provide timely information of abnormal conditions, missing the best time for early treatment. The current perspective presents and discusses the design and development of smart wound dressings that are integrated with multifunctional materials, wearable sensors and drug delivery systems as well as their application ranging from wound monitoring to timely application of therapeutics. The perspective also discusses the ongoing challenges and exciting opportunities associated with the development of wearable sensor-based smart wound dressing and provide critical insights into wound healing monitoring and management.
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Affiliation(s)
- Ning Tang
- School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute Technion‐Israel Institute of Technology Haifa 3200003 Israel
| | - Youbin Zheng
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute Technion‐Israel Institute of Technology Haifa 3200003 Israel
| | - Daxiang Cui
- School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute Technion‐Israel Institute of Technology Haifa 3200003 Israel
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18
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Kim EY, Kim HS, Hong KS, Chung HM, Park SP, Noh G. Mesenchymal stem/stromal cell therapy in atopic dermatitis and chronic urticaria: immunological and clinical viewpoints. Stem Cell Res Ther 2021; 12:539. [PMID: 34635172 PMCID: PMC8503727 DOI: 10.1186/s13287-021-02583-4] [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: 06/14/2021] [Accepted: 08/30/2021] [Indexed: 12/29/2022] Open
Abstract
Allergic diseases are immune-mediated diseases. Allergies share a common immunopathogenesis, with specific differences according to the specific disease. Mesenchymal stem/stromal cells (MSCs) have been applied to people suffering from allergic and many other diseases. In this review, the immunologic roles of MSCs are systemically reviewed according to disease immunopathogenesis from a clinical viewpoint. MSCs seem to be a promising therapeutic modality not only as symptomatic treatments but also as causative and even preventive treatments for allergic diseases, including atopic dermatitis and chronic urticaria.
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Affiliation(s)
| | - Hyuk Soon Kim
- Department of Biomedical Sciences, College of Natural Science, The Graduate School of Dong-A University, Busan, Korea.,Department of Health Sciences, The Graduate School of Dong-A University, Busan, Korea
| | | | - Hyung-Min Chung
- Miraecellbio Co., Ltd., Seoul, Korea.,Department of Stem Cell Biology, School of Medicine, Konkuk University, Seoul, Korea
| | - Se-Pill Park
- Miraecellbio Co., Ltd., Seoul, Korea. .,Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, 63243, Korea.
| | - Geunwoong Noh
- Department of Allergy, Allergy and Clinical Immunology Center, Cheju Halla General Hospital, Doreongno 65, Jeju-si, 63127, Jeju Special Self-Governing Province, Korea.
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19
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Trevisson-Redondo B, Becerro-de-Bengoa-Vallejo R, Sevillano D, González N, Losa-Iglesias ME, López-López D, Alou L. Commercial blood cell separation systems versus tube centrifugation methods for the preparation of platelet-rich plasma: a preliminary cross-sectional study. ACTA ACUST UNITED AC 2021; 67:536-541. [PMID: 34495057 DOI: 10.1590/1806-9282.20200989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/27/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Clinical studies claim that platelet-rich plasma (PRP) accelerates tissue healing due to its high concentration of growth factors and that the combination with leukocytes improves the antimicrobial effect of the concentrate. Most of these studies obtained PRP using different separation systems, and few analyzed the content of the PRP used for treatment. This study characterized the composition of PRP and white blood cells (WBC) from a single donor produced by three commercially available PRP separation systems and two anticoagulated general analytical tubes. METHODS Five patients donated 50 mL of blood, which was processed to produce PRP and WBC using three PRP concentration systems (i.e., Easy PRP Kit, GloPRP, and Wego) and two tubes for general analysis anticoagulated with ethylenediaminetetraacetic acid (EDTA) and citrate. Platelets and WBC in combination with their concentrates were analyzed by automated systems in a clinical laboratory. RESULTS There were no significant differences in the average concentrations of PRP platelets and WBC between GloPRP and the tubes for general analysis with EDTA and citrate; however, the Easy PRP Kit gave results much superior to the rest of the methods, especially comparing it with the Wego Kit, whose concentrates were especially low, even nonexistent for WBC. CONCLUSIONS The Easy PRP Kit concentrates WBC-rich PRP, resulting in increased WBC concentrations, compared with low WBC-low PRP of GloPRP and general tube methods for EDTA and citrate analysis and the even lower concentration of PRP from the Wego Kit, with the absence of leukocytes.
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Affiliation(s)
- Bibiana Trevisson-Redondo
- Universidad de León, Faculty of Health Sciences, SALBIS Research Group, Nursing Department - León, Spain
| | | | - David Sevillano
- Universidad Complutense de Madrid, School of Medicine, Microbiology Section, Medicine Department - Madrid, Spain
| | - Natalia González
- Universidad Complutense de Madrid, School of Medicine, Microbiology Section, Medicine Department - Madrid, Spain
| | | | - Daniel López-López
- Universidade da Coruña, Faculty of Nursing and Podiatry, Research, Health and Podiatry Group, Department of Health Sciences - Ferrol, Spain
| | - Luis Alou
- Universidad Complutense de Madrid, School of Medicine, Microbiology Section, Medicine Department - Madrid, Spain
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20
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Gan BH, Gaynord J, Rowe SM, Deingruber T, Spring DR. The multifaceted nature of antimicrobial peptides: current synthetic chemistry approaches and future directions. Chem Soc Rev 2021; 50:7820-7880. [PMID: 34042120 PMCID: PMC8689412 DOI: 10.1039/d0cs00729c] [Citation(s) in RCA: 175] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Indexed: 12/13/2022]
Abstract
Bacterial infections caused by 'superbugs' are increasing globally, and conventional antibiotics are becoming less effective against these bacteria, such that we risk entering a post-antibiotic era. In recent years, antimicrobial peptides (AMPs) have gained significant attention for their clinical potential as a new class of antibiotics to combat antimicrobial resistance. In this review, we discuss several facets of AMPs including their diversity, physicochemical properties, mechanisms of action, and effects of environmental factors on these features. This review outlines various chemical synthetic strategies that have been applied to develop novel AMPs, including chemical modifications of existing peptides, semi-synthesis, and computer-aided design. We will also highlight novel AMP structures, including hybrids, antimicrobial dendrimers and polypeptides, peptidomimetics, and AMP-drug conjugates and consider recent developments in their chemical synthesis.
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Affiliation(s)
- Bee Ha Gan
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
| | - Josephine Gaynord
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
| | - Sam M Rowe
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
| | - Tomas Deingruber
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
| | - David R Spring
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
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21
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Trevisson B, Becerro-de-Bengoa-Vallejo R, Sevillano D, González N, Losa-Iglesias M, López-López D, Alou L. Age-based inter-subject variability in platelet and white blood cell concentrations of platelet-rich plasma prepared using a new application to blood separation system. Int Wound J 2021; 19:362-369. [PMID: 34114747 PMCID: PMC8762541 DOI: 10.1111/iwj.13636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/20/2022] Open
Abstract
The benefit of autologous platelet‐rich plasma (PRP) treatment is still under discussion. Variations in PRP products, consequence of the lack of a standardised protocol for the multitude of commercially available blood separation systems and the lack of knowledge of the optimal composition of PRP or its suitability for the proposed indication are some of the reasons behind clinical inconsistencies. The impact of inter‐subject variability in PRP has received less attention in comparison. The purpose of this study was to determine the inter‐subject variability, based on age, in the concentrates prepared by a new blood concentration system. Twenty‐six healthy volunteers of both genders (29‐93 years) were enrolled. Whole blood (WB) was collected from each participant to prepare PRP using the Easy PRP kit. Platelets and white blood cells (WBC) from WB and PRP were analysed after split population by age; patients younger than 65 years (n = 13) and patients ≥65 years old (n = 13). Among the demographic characteristics tested, only age was significantly different between the groups. Cell capture efficiency of the system was specific for each type of blood cell and identical for both age groups. Platelets and WBC in PRP were higher than in WB (P < .001). In WB, platelets and WBC concentrations were significantly lower in older group (P ≤ .035). These differences persisted in the prepared PRP (P ≤ .004). The ageing of population has a strong influence on the haematocrit and therefore on the composition of PRP. Because the efficiency of blood separator system seems to be constant across individuals, the inter‐subject haematocrit variability based on age could be used as a predictor of resulting PRP. The clinical application of PRP should be restricted to the specific cell capture capacity of the different commercial devices.
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Affiliation(s)
- Bibiana Trevisson
- SALBIS Research Group, Nursing Department, Faculty of Health Sciences, Universidad de León, León, Spain
| | | | - David Sevillano
- Microbiology Section, Medicine Department, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Natalia González
- Microbiology Section, Medicine Department, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Marta Losa-Iglesias
- Nursing and Stomatology Department, Faculty of Health Science, Universidad Rey Juan Carlos, Madrid, Spain
| | - Daniel López-López
- Research, Health and Podiatry Group, Department of Health Sciences, Faculty of Nursing and Podiatry, Universidade da Coruña, Ferrol, Spain
| | - Luis Alou
- Microbiology Section, Medicine Department, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
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22
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Does Platelet-Rich Plasma (PRP) Improve Colonic Anastomotic Healing in Rats Undergoing Cisplatin-Paclitaxel-Based HIPEC? Indian J Surg 2021. [DOI: 10.1007/s12262-021-02871-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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23
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Abstract
BACKGROUND The use of platelet-rich plasma has emerged as one of the most desired nonsurgical treatments for facial rejuvenation and hair restoration. It has grown to encompass a wide variety of applications within the field of plastic surgery, including its use in combination with microneedling, laser, and fat-grafting procedures. METHODS In this article, the authors aim to (1) describe the preparation process of platelet-rich plasma; (2) discuss the proposed science behind platelet-rich plasma with regard to its evolving role in hair restoration and facial rejuvenation; and (3) highlight the recent literature examining its widespread use. RESULTS Based on the available literature, there is a therapeutic advantage to the use of platelet-rich plasma as a single treatment modality for alopecia and skin rejuvenation and in combination with laser skin treatment and fat grafting. There is, however, a considerable amount of variability in the processing, preparation, and treatment modalities. CONCLUSIONS Despite a lack of standardized protocols for platelet-rich plasma preparation and a scarcity of large-scale studies with long-term follow-up, there is convincing evidence with objective measurement modalities that display positive outcomes after treatment for skin rejuvenation, hair regrowth, wound healing, and fat graft take.
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24
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Tang N, Zheng Y, Jiang X, Zhou C, Jin H, Jin K, Wu W, Haick H. Wearable Sensors and Systems for Wound Healing-Related pH and Temperature Detection. MICROMACHINES 2021; 12:430. [PMID: 33919752 PMCID: PMC8070747 DOI: 10.3390/mi12040430] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022]
Abstract
Wound healing is a complex tissue regeneration process involving many changes in multiple physiological parameters. The pH and temperature of a wound site have long been recognized as important biomarkers for assessing wound healing status. For effective wound management, wound dressings integrated with wearable sensors and systems used for continuous monitoring of pH and temperature have received much attention in recent years. Herein, recent advances in the development of wearable pH and temperature sensors and systems based on different sensing mechanisms for wound status monitoring and treatment are comprehensively summarized. Challenges in the areas of sensing performance, infection identification threshold, large-area 3-dimensional detection, and long-term reliable monitoring in current wearable sensors/systems and emerging solutions are emphasized, providing critical insights into the development of wearable sensors and systems for wound healing monitoring and management.
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Affiliation(s)
- Ning Tang
- School of Aerospace Science and Technology, Xidian University, Xi’an 710126, China;
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
| | - Youbin Zheng
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
| | - Xue Jiang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi’an 710126, China; (X.J.); (W.W.)
| | - Cheng Zhou
- Institute of Micro-Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Han Jin
- Institute of Micro-Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Ke Jin
- School of Aerospace Science and Technology, Xidian University, Xi’an 710126, China;
| | - Weiwei Wu
- School of Advanced Materials and Nanotechnology, Xidian University, Xi’an 710126, China; (X.J.); (W.W.)
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
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25
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Does the application of GaAlAs laser and platelet-rich plasma induce cell proliferation and increase alkaline phosphatase activity in human dental pulp stem cells? Lasers Med Sci 2021; 36:1289-1295. [PMID: 33459924 DOI: 10.1007/s10103-020-03239-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 12/25/2020] [Indexed: 01/04/2023]
Abstract
Blood extracts containing platelet products are gaining popularity in promoting healing and pulp regeneration. This study was designed to evaluate the effect of platelet-rich plasma (PRP) and gallium-aluminum-arsenide (GaAlAs) laser on proliferation and differentiation of human dental pulp stem cells (hDPSCs). In this ex vivo study, hDPSCs isolated from impacted mandibular third molars were cultured in Dulbecco's Modified Eagle's medium )DMEM(with 10% fetal bovine serum (FBS). After reaching the desired confluence, the cells were distributed into 4 groups, namely, control, PRP, laser, and PRP+laser for MTT assay and alkaline phosphatase (ALP) test. In the PRP and PRP+laser groups, 10% PRP was added to each well on the plate. In the laser and PRP+laser groups, as for the proliferation test, laser irradiation was carried out for 45 s, while 135 s was designated for ALP test. After 1, 3, and 5 days, cell proliferation and ALP activity were assessed using MTT and ALP colorimetric assay, respectively. Two-way ANOVA was utilized to analyze data. In PRP and PRP+laser groups, cell proliferation and viability increased until day 3 but began to decline afterwards until the 5th day. In the laser group, the increase in proliferation and viability was observed till day 5 which was less than the control group. Laser and control groups exhibited significantly higher cell viability and proliferation than both PRP and PRP+laser groups. ALP activity was more pronounced in PRP+laser, PRP, and laser in descending order; however, all were less than that of the control group. Only in the control group did the ALP activity augment during the 5-day period. Laser irradiation could induce pulp cell proliferation and demonstrated a better performance than PRP in this regard.
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Kim N, Choi JH, Choi MJ, Kim JS, Kim W, Song JE, Khang G. Characterization of Platelet-Rich Plasma/Gellan Gum Hydrogel Composite for Biological Performance to Induce Chondrogenesis from Adipose-Derived Stem Cells. Macromol Res 2020. [DOI: 10.1007/s13233-020-8155-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Elastic and biodegradable chitosan/agarose film revealing slightly acidic pH for potential applications in regenerative medicine as artificial skin graft. Int J Biol Macromol 2020; 164:172-183. [DOI: 10.1016/j.ijbiomac.2020.07.099] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/30/2020] [Accepted: 07/09/2020] [Indexed: 02/06/2023]
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Barnum L, Samandari M, Schmidt TA, Tamayol A. Microneedle arrays for the treatment of chronic wounds. Expert Opin Drug Deliv 2020; 17:1767-1780. [PMID: 32882162 PMCID: PMC7722049 DOI: 10.1080/17425247.2020.1819787] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/02/2020] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Chronic wounds are seen frequently in diabetic and bedbound patients. Such skin injuries, which do not heal in a timely fashion, can lead to life-threatening conditions. In an effort to resolve the burdens of chronic wounds, numerous investigations have explored the efficacy of various therapeutics on wound healing. Therapeutics can be topically delivered to cutaneous wounds to reduce the complications associated with systemic drug delivery because the compromised skin barrier is not expected to negatively affect drug distribution. However, researchers have recently demonstrated that the complex environment of chronic wounds could lower the localized availability of the applied therapeutics. Microneedle arrays (MNAs) can be exploited to enhance delivery efficiency and consequently improved healing. AREAS COVERED In this review, we briefly describe the pathophysiology of chronic wounds and current treatment strategies. We further introduce methods and materials commonly used for the fabrication of MNAs. Subsequently, the studies demonstrating the benefits of MNAs in wound care are highlighted. EXPERT OPINION Microneedles have great potential to treat the complicated pathophysiology of chronic wounds. Challenges that will need to be addressed include development of a robust chronic wound model and MNAs that combine complex functionality with simplicity of use.
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Affiliation(s)
- Lindsay Barnum
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Mohamadmahdi Samandari
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Tannin A. Schmidt
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, 68588, USA
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Efficacy of platelet-rich plasma injections in patients with adhesive capsulitis of the shoulder. INTERNATIONAL ORTHOPAEDICS 2020; 45:181-190. [PMID: 33205343 DOI: 10.1007/s00264-020-04518-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 02/27/2020] [Indexed: 12/29/2022]
Abstract
PURPOSE The goal of this study is to investigate whether platelet-rich plasma (PRP) injections are effective in the management of adhesive capsulitis of the shoulder (AC). A triple-blind, randomized controlled trial was designed and conducted in a medical school hospital. METHODS 32 adult patients with adhesive capsulitis (21 female, 11 male with a mean age of 57, ranging from 23 to 70) were included in this study. Patients had to have shoulder pain and restrictions in movements (at least 25% when compared to the other side, and at least in two directions) for three months minimum and nine months maximum. Patients were randomized to two groups, and one group took PRP injections for three times every two weeks, while the other group took saline injections in same frequency and volume. A standardized exercise program was also applied to all patients. Patients were evaluated with Shoulder Pain and Disability Index (SPADI), Visual Analogue Scales for pain and disability, ranges of movements, and use of analgesics in before, after, and third month after the initiation of the therapy. RESULTS Baseline comparisons between groups showed no differences. SPADI and ranges of motion in all directions showed significant improvements with therapy, and the group which took PRP injections showed better improvements when compared to the control group (p < 0.05). Visual Analogue Scale was found to be better for the PRP group after therapy and third month, and not for the control group (0.4 ± 1.06 and 0.17 ± 0.72 vs. 2.5 ± 2.6 and 2 ± 2.2, respectively, p < 0.05). Use of analgesics was not found to be significant for both groups (p > 0.05). CONCLUSION PRP injections were found to be effective in both pain and disability, and showed improvements in a restricted shoulder due to adhesive capsulitis. These findings might point out PRP as a therapeutic option in the management of adhesive capsulitis.
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Growth factors-based beneficial effects of platelet lysate on umbilical cord-derived stem cells and their synergistic use in osteoarthritis treatment. Cell Death Dis 2020; 11:857. [PMID: 33057008 PMCID: PMC7560841 DOI: 10.1038/s41419-020-03045-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 12/12/2022]
Abstract
Poor viability of mesenchymal stem cells (MSCs) at the transplanted site often hinders the efficacy of MSCs-based therapy. Platelet lysate (PL) contains rich amounts of growth factors, which benefits cell growth. This study aimed to explore how human PL benefits umbilical cord-derived MSCs (huc-MSCs), and whether they have synergistic potential in osteoarthritis (OA) treatment. As quality control, flow cytometry and specific staining were performed to identify huc-MSCs, and ELISA was used to quantify growth factors in PL. CCK-8 and flow cytometry assays were performed to evaluate the effects of PL on the cell viability and cell cycle progression of huc-MSCs. Wound healing and transwell assays were conducted to assess the migration of huc-MSCs. RNA sequencing, real time PCR, and Western blot assays were conducted to explore the growth factors-based mechanism of PL. The in vitro results showed that PL significantly promoted the proliferation, cell cycle, and migration of huc-MSCs by upregulating relevant genes/proteins and activating beclin1-dependent autophagy via the AMPK/mTOR signaling pathway. The main growth factors (PDGF-AA, IGF-1, TGF-β, EGF, and FGF) contributed to the effects of PL in varying degrees. The in vivo data showed that combined PL and huc-MSCs exerted significant synergistic effect against OA. The overall study determined the beneficial effects and mechanism of PL on huc-MSCs and indicated PL as an adjuvant for huc-MSCs in treating OA. This is the first report on the growth factors-based mechanism of PL on huc-MSCs and their synergistic application. It provides novel knowledge of PLʹs roles and offers a promising strategy for stem cell-based OA therapy by combining PL and huc-MSCs.
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Pakhomova EE, Smirnova IO. Comparative Evaluation of the Clinical Efficacy of PRP-Therapy, Minoxidil, and Their Combination with Immunohistochemical Study of the Dynamics of Cell Proliferation in the Treatment of Men with Androgenetic Alopecia. Int J Mol Sci 2020; 21:ijms21186516. [PMID: 32899959 PMCID: PMC7555524 DOI: 10.3390/ijms21186516] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 02/01/2023] Open
Abstract
Platelet-rich plasma (PRP) therapy has been considered as a promising treatment for androgenetic alopecia (AGA). The aim of the study was comparative evaluation of the clinical efficacy of PRP-therapy, minoxidil, and their combination in the treatment of men with AGA and to evaluate the effects of PRP on the proliferation of hair follicle (HF) cells in skin biopsy. MATERIALS AND METHODS The study involved 69 men who were divided into 3 groups who received PRP therapy, minoxidil, and their combination. The clinical efficacy of the therapy was evaluated by the dynamics of morphometric of hairs. To assess cell proliferation antibodies to β-catenin, CD34, Ki67, and to Dkk-1 were used. RESULTS PRP treatment was more effective than minoxidil therapy (p = 0.005). Complex therapy turned out to be more effective than minoxidil monotherapy (p < 0.0001) and PRP monotherapy (p = 0.007). After applying PRP the absolute and relative values of the β-catenin and CD34 expression area increased; an increase in Ki67+ index was also significant. CONCLUSIONS PRP can be considered as a treatment option for AGA. Combined PRP and minoxidil use seems promising for the treatment of AGA. PRP increase in the proliferative activity of HF cells and improves hair morphology in patients with AGA.
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Affiliation(s)
- Elena E. Pakhomova
- Department of Infectious Diseases, Epidemiology and Dermatovenereology, St. Petersburg State University, 199034 St. Petersburg, Russia;
- Thichology Center of Hair Treatment, 191123 St. Petersburg, Russia
- Correspondence: ; Tel.: +7-921-932-3341
| | - Irina O. Smirnova
- Department of Infectious Diseases, Epidemiology and Dermatovenereology, St. Petersburg State University, 199034 St. Petersburg, Russia;
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Comparison of Platelet-Rich Plasma-Impregnated Suture Material with Low and High Platelet Concentration to Improve Colonic Anastomotic Wound Healing in Rats. Gastroenterol Res Pract 2020; 2020:7386285. [PMID: 32565785 PMCID: PMC7271001 DOI: 10.1155/2020/7386285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 03/14/2020] [Accepted: 04/07/2020] [Indexed: 01/27/2023] Open
Abstract
Objective This study was designed to investigate the impact of using suture material impregnated with platelet-rich plasma (PRP) in different platelet concentrations on colonic anastomotic wound healing in rats. Methods A total of 24 Sprague Dawley female rats were separated into 3 groups (n = 8 for each) including the control group (CON; standard vicryl suture repair), the low platelet concentrate PRP group (L-PRP; suture material impregnated with PRP containing average 2.7-fold (range, 2.0 to 3.1) higher amount of platelets vs. control), and the high platelet concentrate PRP group (H-PRP; suture material impregnated with PRP containing average 5.1-fold (range, 4.8 to 5.4) higher amount of platelets vs. control). Rats were sacrificed on the postoperative 7th day for analysis of colonic anastomosis region including macroscopic observation, measurement of anastomotic bursting pressure (ABP), and the hydroxyproline levels and histopathological findings in colon tissue samples. Results Total injury scores were significantly lower in the L-PRP and H-PRP groups than those in the control group (median (range) 13.00 (7.00) and 11.50 (6.00) vs. 15.50 (4.00), p < 0.05 and p < 0.01, respectively). ABP values (180.00 (49.00) vs. 124.00 (62.00) and 121.00 (57.00) mmHg, p < 0.001 for each) and tissue hydroxyproline levels (0.56 (0.37) vs. 0.25 (0.17) and 0.39 (0.10) μg/mg tissue, p < 0.001 and p < 0.05, respectively) were significantly higher in the L-PRP group as compared with those in the control and H-PRP groups. Conclusion In conclusion, our findings revealed PRP application to colonic anastomosis sutures to promote the anastomotic healing process. The platelet concentration of PRP seems to have a significant impact on the outcome with superior efficacy of L-PRP over H-PRP in terms of bursting pressures and collagen concentration at the anastomotic site.
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Göksu M, Alakuş H, Ertan S, Akgün S. Effect of platelet-rich plasma on colon anastomosis in rats in which hyperthermic intra-peritoneal chemotherapy was performed using 5-fluorouracil. ANZ J Surg 2020; 90:2290-2297. [PMID: 32436284 DOI: 10.1111/ans.15993] [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: 01/23/2020] [Revised: 04/25/2020] [Accepted: 04/29/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hyperthermic intra-peritoneal chemotherapy (HIPEC) performed in patients with peritoneal carcinomatosis has a cytotoxic effect on tumour cells. This cytotoxic effect also adversely affects the wound healing of anastomosis, which is frequently undertaken in this patient group, and causes anastomotic leakage and intestinal fistulas. Platelet-rich plasma (PRP) gel has been used in wound healing and has shown efficacy. We investigated the effect of PRP gel on colon anastomosis healing in rats treated with 5-fluorouracil (5-FU). METHODS Twenty-four rats were divided into three groups, each containing eight rats: group 1 (control) underwent colon anastomosis alone; group 2 (5-FU) underwent a colon anastomosis and HIPEC; and group 3 (5-FU + PRP) underwent a colon anastomosis and HIPEC and received topical PRP gel. The rats were sacrificed on the post-operative day 7 and the anastomotic bursting pressure (ABP) was measured. Tissue samples were obtained to measure the hydroxyproline level and investigate the histopathological changes on the anastomosis line. RESULTS ABP was higher in the control and 5-FU + PRP groups than in the 5-FU group (P = 0.009, P = 0.047). The tissue hydroxyproline levels were higher in the control and 5-FU + PRP groups than in the 5-FU group (P = 0.001, P = 0.030). The histopathological findings of the 5-FU + PRP group were better than those of the 5-FU group. CONCLUSION This study showed that the application of PRP gel to colon anastomoses increased ABP in rats treated with HIPEC using 5-FU. It also showed positive effects on anastomotic healing by increasing the tissue hydroxyproline levels on the anastomosis line and reducing the inflammatory response.
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Affiliation(s)
- Mustafa Göksu
- Department of General Surgery, Adiyaman University Training and Research Hospital, Adiyaman, Turkey
| | - Hüseyin Alakuş
- Division of Surgical Oncology, Adiyaman University Training and Research Hospital, Adiyaman, Turkey
| | - Siraç Ertan
- Department of Pathology, Adiyaman University Training and Research Hospital, Adiyaman, Turkey
| | - Sadık Akgün
- Department of Medical Microbiology, Adiyaman University Training and Research Hospital, Adiyaman, Turkey
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Morone D, Autilia FD, Schorn T, Erreni M, Doni A. Evaluation of cell metabolic adaptation in wound and tumour by Fluorescence Lifetime Imaging Microscopy. Sci Rep 2020; 10:6289. [PMID: 32286404 PMCID: PMC7156395 DOI: 10.1038/s41598-020-63203-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 03/20/2020] [Indexed: 12/12/2022] Open
Abstract
Acidic pH occurs in acute wounds progressing to healing as consequence of a cell metabolic adaptation in response to injury-induced tissue hypoperfusion. In tumours, high metabolic rate leads to acidosis affecting cancer progression. Acidic pH affects activities of remodelling cells in vitro. The pH measurement predicts healing in pathological wounds and success of surgical treatment of burns and chronic ulcers. However, current methods are limited to skin surface or based on detection of fluorescence intensity of specific sensitive probes that suffer of microenvironment factors. Herein, we ascertained relevance in vivo of cell metabolic adaptation in skin repair by interfering with anaerobic glycolysis. Moreover, a custom-designed skin imaging chamber, 2-Photon microscopy (2PM), fluorescence lifetime imaging (FLIM) and data mapping analyses were used to correlate maps of glycolytic activity in vivo as measurement of NADH intrinsic lifetime with areas of hypoxia and acidification in models of skin injury and cancer. The method was challenged by measuring the NADH profile by interfering with anaerobic glycolysis and oxidative phosphorylation in the mitochondrial respiratory chain. Therefore, intravital NADH FLIM represents a tool for investigating cell metabolic adaptation occurring in wounds, as well as the relationship between cell metabolism and cancer.
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Affiliation(s)
- Diego Morone
- Unit of Advanced Optical Microscopy, IRCCS, Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana (USI), Bellinzona, Switzerland
| | - Francesca D' Autilia
- Unit of Advanced Optical Microscopy, IRCCS, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Tilo Schorn
- Unit of Advanced Optical Microscopy, IRCCS, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Marco Erreni
- Unit of Advanced Optical Microscopy, IRCCS, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Andrea Doni
- Unit of Advanced Optical Microscopy, IRCCS, Humanitas Clinical and Research Center, Rozzano, Milan, Italy.
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Tabatabaei F, Aghamohammadi Z, Tayebi L. In vitro and in vivo effects of concentrated growth factor on cells and tissues. J Biomed Mater Res A 2020; 108:1338-1350. [PMID: 32090458 DOI: 10.1002/jbm.a.36906] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 02/14/2020] [Accepted: 02/17/2020] [Indexed: 12/17/2022]
Abstract
This article reviews the biological outcome of the concentrated growth factor (CGF), a new platelet derivative used for tissue regeneration, in published articles related to the use of this product in basic and clinical studies. An electronic literature research using PubMed and SCOPUS was performed using combination of keywords: "concentrated growth factor" (OR "CGF"), AND "stem cells," AND "cells" OR "cell proliferation" OR "cell migration" OR "cell differentiation," AND "repair" OR "survival" OR "revitalization," AND "tissue" OR "bone." Forty-five articles that were published between 2012 and 2020 met the inclusion criteria. These studies have used CGF as fresh solid form, freeze-dried, membrane, extract, or exudate. Most studies demonstrate the positive effects of CGF in a dose-dependent manner under certain concentrations. Studies comparing CGF with other platelet concentrates, report lower efficiency, no statistically significant differences, or better results for CGF. Combination of CGF with stem cells and biomaterials significantly improves bone regeneration and the effect of allograft or collagen membrane is better than CGF alone. For a better examination of the biological outcomes of CGF, the standardization of CGF preparation regarding the choice of the test tube material for blood collection, the required volume of blood, the necessary count of platelets in CGF, and the most appropriate type of CGF are recommended.
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Affiliation(s)
- Fahimeh Tabatabaei
- Dental Research Center, Research Institute of Dental Sciences, Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,School of Dentistry, Marquette University, Milwaukee, Wisconsin, USA
| | - Zahra Aghamohammadi
- Dental Research Center, Research Institute of Dental Sciences, Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Lobat Tayebi
- School of Dentistry, Marquette University, Milwaukee, Wisconsin, USA
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Kuo SH, Shen CJ, Shen CF, Cheng CM. Role of pH Value in Clinically Relevant Diagnosis. Diagnostics (Basel) 2020; 10:diagnostics10020107. [PMID: 32079129 PMCID: PMC7167948 DOI: 10.3390/diagnostics10020107] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/14/2020] [Accepted: 02/14/2020] [Indexed: 12/18/2022] Open
Abstract
As a highly influential physiological factor, pH may be leveraged as a tool to diagnose physiological state. It may be especially suitable for diagnosing and assessing skin structure and wound status. Multiple innovative and elegant smart wound dressings combined with either pH sensors or drug control-released carriers have been extensively studied. Increasing our understanding of the role of pH value in clinically relevant diagnostics should assist clinicians and improve personal health management in the home. In this review, we summarized a number of articles and discussed the role of pH on the skin surface as well as the factors that influence skin pH and pH-relevant skin diseases, but also the relationship of skin pH to the wound healing process, including its influence on the activity of proteases, bacterial enterotoxin, and some antibacterial agents. A great number of papers discussing physiological pH value have been published in recent decades, far too many to be included in this review. Here, we have focused on the impact of pH on wounds and skin with an emphasis on clinically relevant diagnosis toward effective treatment. We have also summarized the differences in skin structure and wound care between adults and infants, noting that infants have fragile skin and poor skin barriers, which makes them more vulnerable to skin damage and compels particular care, especially for wounds.
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Affiliation(s)
- Shu-Hua Kuo
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan;
| | - Ching-Ju Shen
- College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
| | - Ching-Fen Shen
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
- Correspondence: (C.-F.S.); (C.-M.C.)
| | - Chao-Min Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan;
- Correspondence: (C.-F.S.); (C.-M.C.)
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Bernal-Chávez SA, Alcalá-Alcalá S, Cerecedo D, Ganem-Rondero A. Platelet lysate-loaded PLGA nanoparticles in a thermo-responsive hydrogel intended for the treatment of wounds. Eur J Pharm Sci 2020; 146:105231. [PMID: 32007518 DOI: 10.1016/j.ejps.2020.105231] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/28/2019] [Accepted: 01/20/2020] [Indexed: 12/16/2022]
Abstract
A thermo-responsive hydrogel of Pluronic F-127, containing PLGA nanoparticles loaded with a platelet lysate for wound treatment, was prepared. A high rate of incorporation of the lysate (about 80%) in the nanoparticles was achieved by the double emulsion-solvent evaporation method. The nanoparticles were characterized by measuring their size (about 318 nm), polydispersity index (0.29) and Z potential (-17.6), as well as by infrared and calorimetric techniques, and determining their stability as a function of time. It was found through measures of transepidermal water loss that the hydrogel containing the nanoparticles was capable of providing a semi-occlusive environment, necessary for the recovery of a wound. The inclusion of lysate in nanoparticles and this in turn in the hydrogel allowed a gradual release, which would avoid contact of the total dose with the biological medium. Studies with fibroblasts and in vivo in mice showed that the hydrogel containing nanoparticles with platelet lysate promoted faster tissue regeneration than the lysate in its free form, so this system is presented as a good alternative for the treatment of wounds.
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Affiliation(s)
- Sergio Alberto Bernal-Chávez
- División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, Estado de México 54740, México
| | - Sergio Alcalá-Alcalá
- Laboratorio de Tecnología Farmacéutica, Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - Doris Cerecedo
- Laboratorio de Hematobiología, Escuela Nacional de Medicina y Homeopatía, Sección de Estudios de Posgrado, Instituto Politécnico Nacional, Ciudad de México, México
| | - Adriana Ganem-Rondero
- División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, Estado de México 54740, México.
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Peng GL. Platelet-Rich Plasma for Skin Rejuvenation: Facts, Fiction, and Pearls for Practice. Facial Plast Surg Clin North Am 2020; 27:405-411. [PMID: 31280855 DOI: 10.1016/j.fsc.2019.04.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Platelet-rich plasma (PRP) has gained popularity in facial plastic surgery because of its role in wound healing. PRP, having a higher concentration of platelets, allows for greater release of growth factors and biologically active proteins, which in turn activates the wound-healing cascade stimulating neoangiogenesis and collagen production. One of the most popular uses for PRP is for facial skin rejuvenation in the form of dermal injections and topical application during microneedling. The promising nature of PRP makes using it for injection and/or in conjunction with microneedling a good addition to any practice that deals with skin rejuvenation.
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Affiliation(s)
- Grace Lee Peng
- Facial Plastic and Reconstructive Surgery, 120 South Spalding Drive, Suite 301, Beverly Hills, CA 90212, USA.
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Zhang J, Song C, Han Y, Xi Z, Zhao L, Cen L, Yang Y. Regulation of inflammatory response to polyglycolic acid scaffolds through incorporation of sodium tripolyphosphate. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109349] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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do Amaral RJFC, Zayed NMA, Pascu EI, Cavanagh B, Hobbs C, Santarella F, Simpson CR, Murphy CM, Sridharan R, González-Vázquez A, O'Sullivan B, O'Brien FJ, Kearney CJ. Functionalising Collagen-Based Scaffolds With Platelet-Rich Plasma for Enhanced Skin Wound Healing Potential. Front Bioeng Biotechnol 2019; 7:371. [PMID: 31921799 PMCID: PMC6915093 DOI: 10.3389/fbioe.2019.00371] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 11/13/2019] [Indexed: 12/21/2022] Open
Abstract
Porous collagen-glycosaminoglycan (collagen-GAG) scaffolds have shown promising clinical results for wound healing; however, these scaffolds do not replace the dermal and epidermal layer simultaneously and rely on local endogenous signaling to direct healing. Functionalizing collagen-GAG scaffolds with signaling factors, and/or additional matrix molecules, could help overcome these challenges. An ideal candidate for this is platelet-rich plasma (PRP) as it is a natural reservoir of growth factors, can be activated to form a fibrin gel, and is available intraoperatively. We tested the factors released from PRP (PRPr) and found that at specific concentrations, PRPr enhanced cell proliferation and migration and induced angiogenesis to a greater extent than fetal bovine serum (FBS) controls. This motivated us to develop a strategy to successfully incorporate PRP homogeneously within the pores of the collagen-GAG scaffolds. The composite scaffold released key growth factors for wound healing (FGF, TGFβ) and vascularization (VEGF, PDGF) for up to 14 days. In addition, the composite scaffold had enhanced mechanical properties (when compared to PRP gel alone), while providing a continuous upper surface of extracellular matrix (ECM) for keratinocyte seeding. The levels of the factors released from the composite scaffold were sufficient to sustain proliferation of key cells involved in wound healing, including human endothelial cells, mesenchymal stromal cells, fibroblasts, and keratinocytes; even in the absence of FBS supplementation. In functional in vitro and in vivo vascularization assays, our composite scaffold demonstrated increased angiogenic and vascularization potential, which is known to lead to enhanced wound healing. Upon pro-inflammatory induction, macrophages released lower levels of the pro-inflammatory marker MIP-1α when treated with PRPr; and released higher levels of the anti-inflammatory marker IL1-ra upon both pro- and anti-inflammatory induction when treated with the composite scaffold. Finally, our composite scaffold supported a co-culture system of human fibroblasts and keratinocytes that resulted in an epidermal-like layer, with keratinocytes constrained to the surface of the scaffold; by contrast, keratinocytes were observed infiltrating the PRP-free scaffold. This novel composite scaffold has the potential for rapid translation to the clinic by isolating PRP from a patient intraoperatively and combining it with regulatory approved scaffolds to enhance wound repair.
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Affiliation(s)
- Ronaldo J. F. C. do Amaral
- Kearney Lab, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Centre for Research in Medical Devices (CURAM), National University of Ireland Galway, Galway, Ireland
| | - Noora M. A. Zayed
- Kearney Lab, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Elena I. Pascu
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - Brenton Cavanagh
- Cellular and Molecular Imaging Core, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - Chris Hobbs
- Advanced Materials and Bioengineering Research (AMBER) Centre, Dublin, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin (TCD), Dublin, Ireland
| | - Francesco Santarella
- Kearney Lab, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - Christopher R. Simpson
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - Ciara M. Murphy
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, Dublin, Ireland
| | - Rukmani Sridharan
- Kearney Lab, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - Arlyng González-Vázquez
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, Dublin, Ireland
| | - Barry O'Sullivan
- Beaumont Hospital, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - Fergal J. O'Brien
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Centre for Research in Medical Devices (CURAM), National University of Ireland Galway, Galway, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, Dublin, Ireland
- Trinity Centre for Bioengineering, Trinity College Dublin, Dublin, Ireland
| | - Cathal J. Kearney
- Kearney Lab, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Tissue Engineering Research Group (TERG), Department of Anatomy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, Dublin, Ireland
- Trinity Centre for Bioengineering, Trinity College Dublin, Dublin, Ireland
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Rabiee Motmaen S, Tavakol S, Joghataei MT, Barati M. Acidic pH derived from cancer cells as a double-edged knife modulates wound healing through DNA repair genes and autophagy. Int Wound J 2019; 17:137-148. [PMID: 31714008 DOI: 10.1111/iwj.13248] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/18/2019] [Accepted: 09/22/2019] [Indexed: 12/16/2022] Open
Abstract
Wound healing is a sequester program that involves diverse cell signalling cascades. Notwithstanding, complete signal transduction pathways underpinning acidic milieu derived from cancer cells is not clear, yet. MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, fluorescein diacetate/propidium iodide staining, and cell cycle flow cytometry revealed that acidic media decreased cell viability and cell number along with enhanced dead cells and S-phase arrest in normal fibroblasts. Notably, the trends of intracellular reactive oxygen species production and lactate dehydrogenase release significantly increased with time. It seems the downregulation of Klf4 is in part due to acidosis-induced DNA damage. It promoted cells towards S-phase arrest and diminished cell proliferation. Klf4 downregulation had a direct correlation with the P53 level while acidic microenvironment promotes cells towards cell death mechanisms including apoptosis and autophagy. Noteworthily, the unchanged levels of Rb and Mlh1 indicated in those genes had no dominant role in the repairing of DNA damage in fibroblasts treated with the acidic microenvironment. Therefore, cells owing to not entering to mitosis and accumulation of DNA damage were undergone cell death to preserve cell homeostasis. Since acidic media decreased the level of tumour suppressor and DNA repair genes and altered the normal survival pathways in fibroblasts, caution should be exercised to not lead to cancer rather than wound healing.
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Affiliation(s)
| | - Shima Tavakol
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad T Joghataei
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Barati
- Department of Medical Biotechnology, Iran University of Medical Sciences, Tehran, Iran
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Abstract
Regarded as a silent epidemic, chronic wounds are a global public health issue. Wound healing is a complex, synchronized cascade of physiological processes restoring the anatomic and functional integrity of the skin; however, chronic wounds fail to proceed through the wound healing cascade. Wound pH oscillates during wound healing, usually traversing from a neutral pH to an acidic pH, while chronic wounds perpetuate in an elevated alkaline milieu. Although a neglected clinical parameter, pH has implications for relatively all pathologies of wound healing affecting oxygen release, angiogenesis, protease activity, bacterial toxicity and antimicrobial activity. Despite the array of wound healing products currently marketed, understanding the implications of pH on arresting wound healing can stimulate innovation within this vast market.
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Harrison TE, Bowler J, Levins TN, Cheng AL, Reeves KD. Platelet yield and yield consistency for six single-spin methods of platelet rich plasma preparation. Platelets 2019; 31:661-666. [DOI: 10.1080/09537104.2019.1663808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | | | | | - An-Lin Cheng
- Biostatistician, Department of Biomedical and Health Informatics, University of Missouri-Kansas City, School of Medicine, Kansas City, Missouri, USA
| | - K. Dean Reeves
- Private Practice Physical Medicine and Rehabilitation, Roeland Park, Kansas, USA
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Walski T, Dąbrowska K, Drohomirecka A, Jędruchniewicz N, Trochanowska-Pauk N, Witkiewicz W, Komorowska M. The effect of red-to-near-infrared (R/NIR) irradiation on inflammatory processes. Int J Radiat Biol 2019; 95:1326-1336. [PMID: 31170016 DOI: 10.1080/09553002.2019.1625464] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Near-infrared (NIR) and red-to-near-infrared (R/NIR) radiation are increasingly applied for therapeutic use. R/NIR-employing therapies aim to stimulate healing, prevent tissue necrosis, increase mitochondrial function, and improve blood flow and tissue oxygenation. The wide range of applications of this radiation raises questions concerning the effects of R/NIR on the immune system. Methods: In this review, we discuss the potential effects of exposure to R/NIR light on immune cells in the context of physical parameters of light. Discussion: The effects that R/NIR may induce in immune cells typically involve the production of reactive oxygen species (ROS), nitrogen oxide (NO), or interleukins. Production of ROS after exposure to R/NIR can either be inhibited or to some extent increased, which suggests that detailed conditions of experiments, such as the spectrum of radiation, irradiance, exposure time, determine the outcome of the treatment. However, a wide range of immune cell studies have demonstrated that exposure to R/NIR most often has an anti-inflammatory effect. Finally, photobiomodulation molecular mechanism with particular attention to the role of interfacial water structure changes for cell physiology and regulation of the inflammatory process was described. Conclusions: Optimization of light parameters allows R/NIR to act as an anti-inflammatory agent in a wide range of medical applications.
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Affiliation(s)
- Tomasz Walski
- Research and Development Center, Regional Specialist Hospital , Wrocław , Poland.,Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology , Wrocław , Poland
| | - Krystyna Dąbrowska
- Research and Development Center, Regional Specialist Hospital , Wrocław , Poland.,Institute of Immunology and Experimental Therapy, Polish Academy of Sciences , Wrocław , Poland
| | - Anna Drohomirecka
- Department of Heart Failure and Transplantology, Institute of Cardiology , Warsaw , Poland
| | | | - Natalia Trochanowska-Pauk
- Research and Development Center, Regional Specialist Hospital , Wrocław , Poland.,Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology , Wrocław , Poland
| | - Wojciech Witkiewicz
- Research and Development Center, Regional Specialist Hospital , Wrocław , Poland
| | - Małgorzata Komorowska
- Research and Development Center, Regional Specialist Hospital , Wrocław , Poland.,Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology , Wrocław , Poland
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Shi M, Zhang H, Song T, Liu X, Gao Y, Zhou J, Li Y. Sustainable Dual Release of Antibiotic and Growth Factor from pH-Responsive Uniform Alginate Composite Microparticles to Enhance Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22730-22744. [PMID: 31141337 DOI: 10.1021/acsami.9b04750] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydrogel-based wound dressings provided a moist microenvironment and local release of bioactive molecules. Single drug loading along with fast release rates and usually in hydrogel sheets limited their performance. Hence, uniform alginate/CaCO3 composite microparticles (∼430 μm) with tunable compositions for sustainable release of drug and pH-sensitivity were successfully fabricated using microfluidic technology. Due to the presence of CaCO3 and the strong interactions with alginate molecules, lyophilized composite microparticles reverted to hydrogel state after rehydration. Regardless of microparticle states (hydrogel or lyophilized) and pH values (6.4 or 7.4), in vitro release rates of model drug were inversely related with CaCO3 concentrations and much lower than that for pure alginate microparticles. The release rate at pH 6.4 (simulating wound microenvironment) was always slower than that at pH 7.4 for the same type of microparticles. Rifamycin and basic fibroblast growth factor (bFGF) were independently encapsulated into AD-5-R and AD-40-F to achieve a fast release of rifamycin and a slower, more sustained release of bFGF, respectively; CD-F-R was a mixture of AD-5-R and AD-40-F at weight ratio 1/1. For AD-5-R and CD-F-R, inhibition zones of S. aureus were observed until day 5, showing a sustained antibacterial property. On the basis of in vitro wound healing model of NIH-3T3 cell micropattern on glass coverslips with a hole array, it was found that AD-40-F and CD-F-R significantly promoted cell proliferation and migration rates. In a full-thickness skin wound model of rats, CD-F-R microparticles significantly accelerated wound healing with higher granulation tissue thickness and better bioactivity to stimulate angiogenesis than the control group. Furthermore, CD-F-R microparticles demonstrated a good biocompatibility and biodegradability in vivo. Taken together, CD-F-R composite microparticles may ideally meet the requirements for different stages during wound healing and demonstrated a good potential to be used as dressing materials.
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Affiliation(s)
- Ming Shi
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Hao Zhang
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Ting Song
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Xiaofang Liu
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Yunfen Gao
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
| | - Jianhua Zhou
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital , Harvard Medical School , Cambridge , Massachusetts 02139 , United States
| | - Yan Li
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices , Sun Yat-sen University , Guangzhou 510006 , Guangdong , P.R. China
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Cecerska-Heryć E, Heryć R, Wiśniewska M, Michalczyk A, Dołęgowska B. Regenerative potential of platelets in patients with chronic kidney disease. Int Urol Nephrol 2019; 51:1831-1840. [PMID: 31197743 DOI: 10.1007/s11255-019-02190-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 06/04/2019] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Chronic kidney disease (CKD) is a systemic disease affecting many organs. Progression of renal failure aggravates ongoing inflammation and increases oxidative stress. In the final stage of CKD, it is necessary to use renal replacement therapy. A side effect of dialysis therapy is the synthesis of proinflammatory factors and increased oxidative stress, which activates platelets and immune cells. AIM OF THE STUDY To determine the regenerative potential of platelets in patients with CKD based on the analysis of the relationships between substances with potential regenerative action, as well as analysis of the influence of the type of renal replacement therapy used on regeneration of platelets. MATERIALS AND METHODS The study group consisted of 117 patients. Based on the type of therapy used, patients were divided into four groups: hemodialysis, peritoneal dialysis, kidney transplant patients, and conservative treatment (30, 30, 27, and 30 patients). The control group consisted of 30 healthy volunteers. The concentrations of IGF-1, TGF-β, and PDGF-B in the blood serum were measured by ELISA methods. RESULTS It was shown that renal replacement therapy significantly influences the concentration of platelet growth factors (IGF-1: p = 0.025 and PDGF-B: p = 0.012). There was a relationship between the type of renal replacement therapy and the duration of dialysis, and the concentration of IGF-1, PDGF-B (p < 0.00001, p < 0.001). CONCLUSIONS The type of renal replacement therapy has a different effect on the concentration of platelet-derived growth factors IGF-1 and PDGF-B. PD patients had the highest concentrations of all growth factors, and this may be due to the presence of inflammation induced by dialysis-related advanced end-products of glycosylation (AGE).
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Affiliation(s)
- Elżbieta Cecerska-Heryć
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland.
| | - Rafał Heryć
- Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland
| | - Magda Wiśniewska
- Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland
| | - Anna Michalczyk
- Department of Psychiatry, Pomeranian Medical University of Szczecin, Broniewskiego 26, 71-460, Szczecin, Poland
| | - Barbara Dołęgowska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111, Szczecin, Poland
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Berndt S, Turzi A, Pittet-Cuénod B, Modarressi A. Autologous Platelet-Rich Plasma (CuteCell PRP) Safely Boosts In Vitro Human Fibroblast Expansion. Tissue Eng Part A 2019; 25:1550-1563. [PMID: 30896295 DOI: 10.1089/ten.tea.2018.0335] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Nowadays autologous fibroblast application for skin repair presents an important clinical interest. In most cases, in vitro skin cell culture is mandatory. However, cell expansion using xenogeneic or allogenic culture media presents some disadvantages, such as the risk of infection transmission or slow cell expansion. In this study, we investigated an autologous culture system to expand human skin fibroblast cells in vitro with the patient's own platelet-rich plasma (PRP). Human dermal fibroblasts were isolated from patients undergoing abdominoplasty, and blood was collected to prepare nonactivated PRP using the CuteCell™ PRP medical device. Cultures were followed up to 7 days using a medium supplemented with either fetal bovine serum (FBS) or PRP. Fibroblasts cultured in medium supplemented with PRP showed dose-dependently significantly higher proliferation rates (up to 7.7 times with 20% of PRP) and initiated a faster migration in the in vitro wound healing assay compared with FBS, while chromosomal stability was maintained. At high concentrations, PRP changed fibroblast morphology, inducing cytoskeleton rearrangement and an increase of alpha-smooth muscle actin and vimentin expression. Our findings show that autologous PRP is an efficient and cost-effective supplement for fibroblast culture, and should be considered as a safe alternative to xenogeneic/allogenic blood derivatives for in vitro cell expansion. Impact Statement Autologous dermal fibroblast graft is an important therapy in skin defect repair, but in vitro skin cell culture is mandatory in most cases. However, cell expansion using xenogeneic/allogenic culture media presents some disadvantages, such as the risk of infection transmission. We demonstrated that an autologous culture system with the patient's own platelet-rich plasma is an efficient, cost-effective, and safe supplement for fibroblast culture. As it respects the good manufacturing practices and regulatory agencies standards, it should be considered as a potent alternative and substitute to xenogeneic or allogenic blood derivatives for the validation of future clinical protocols using in vitro cell expansion.
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Affiliation(s)
- Sarah Berndt
- Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, Geneva, Switzerland.,Faculty of Medicine, Geneva University, Geneva, Switzerland.,Regen Lab SA, Le Mont-sur-Lausanne, Switzerland
| | | | - Brigitte Pittet-Cuénod
- Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, Geneva, Switzerland.,Faculty of Medicine, Geneva University, Geneva, Switzerland
| | - Ali Modarressi
- Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, Geneva, Switzerland.,Faculty of Medicine, Geneva University, Geneva, Switzerland
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Chen X, Chen Y, Hou Y, Song P, Zhou M, Nie M, Liu X. Modulation of proliferation and differentiation of gingiva‑derived mesenchymal stem cells by concentrated growth factors: Potential implications in tissue engineering for dental regeneration and repair. Int J Mol Med 2019; 44:37-46. [PMID: 31017269 PMCID: PMC6559294 DOI: 10.3892/ijmm.2019.4172] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 04/10/2019] [Indexed: 12/16/2022] Open
Abstract
The aim of the present study was to evaluate the proliferation and osteogenic differentiation ability of gingiva-derived mesenchymal stem cells (GMSCs) cultured with different concentrations of concentrated growth factors (CGF). GMSCs were isolated from gingival connective tissues and characterized by flow cytometry, immunofluorescence staining and immunohistochemical staining. Cell proliferation activity was determined by the MTT assay, and the effect of CGF on MCSCs was detected with the Cell Counting Kit (CCK)-8 assay. Mineralization induction was evaluated by alkaline phosphatase (ALP)-positive cell staining and mineralized nodule formation assay. Dentin matrix acidic phosphoprotein (DMP)1, dentin sialophosphoprotein (DSPP), bone morphogenetic protein (BMP)2 and runt-related transcription factor (RUNX)2 mRNA and protein expression were evaluated by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis and western blotting. The flow cytometry, immunofluorescence staining and immunohistochemical staining results indicated that the cultured cells were GMSCs. The MTT assay results revealed that the third-generation gingival stem cells exhibited the highest proliferative capacity, and the CCK-8 results indicated that 10% CGF achieved the most prominent promotion of GMSC proliferation. ALP activity analysis and mineralized nodule assay demonstrated that CGF may successfully induce osteogenic differentiation of GMSCs, whereas RT-qPCR and western blot analyses demonstrated that CGF is involved in the differentiation of GMSCs by regulating the expression of DMP1, DSPP, BMP2 and RUNX2 (P<0.05). In conclusion, CGF were demonstrated to promote the proliferation and osteogenic differentiation of GMSCs. Therefore, CGF may be applied in tissue engineering for tooth regeneration and repair.
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Affiliation(s)
- Xiao Chen
- Department of Orthodontics, Mianyang Stomatological Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Yuhe Chen
- Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Yali Hou
- Department of Oral Pathology, College and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Peng Song
- Department of Oral Pathology, College and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Minyue Zhou
- Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Minhai Nie
- Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xuqian Liu
- Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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Baria M, Vasileff WK, Miller M, Borchers J, Flanigan DC, Durgam SS. Cellular Components and Growth Factor Content of Platelet-Rich Plasma With a Customizable Commercial System. Am J Sports Med 2019; 47:1216-1222. [PMID: 30848659 DOI: 10.1177/0363546519827947] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Platelet-rich plasma (PRP) is an autologous orthobiologic treatment option for musculoskeletal conditions with favorable results in a limited number of high-quality clinical trials. Because different blood-processing methods result in PRP with varying cellular and growth factor content, it is critical that clinicians understand the content of the specific PRP being used in clinical practice. One adjustable system, the Angel System, has few independent laboratory reports on the specific composition of its PRP. The goal of this study was to quantify the cellular and growth factor composition of PRP produced by this system at its lowest hematocrit settings. HYPOTHESIS The authors hypothesized that the system would significantly concentrate platelets over baseline and, at the lowest hematocrit settings, would reduce leukocytes to produce leukocyte-poor PRP. STUDY DESIGN Descriptive laboratory study. METHODS Ten healthy male volunteers donated 150 mL of whole blood for processing. Three separate processing cycles were performed for each sample at the 0%, 1%, and 2% hematocrit settings. The resultant PRP from each cycle was sent for complete blood counts and enzyme-linked immunosorbent assay to quantify the following growth factors: platelet-derived growth factor (PDGF), basic fibroblast growth factor (bFGF), insulin-like growth factor-1 (IGF-1), and vascular endothelial growth factor (VEGF). RESULTS The system consistently concentrated platelets 5-fold over baseline, with no significant differences among settings. Leukocytes were concentrated at all settings, between 2 and 5 times over baseline. The 0% and 1% settings had significantly lower leukocyte concentrations than the 2% setting. Lymphocytes made up >89% of the leukocyte differential, while neutrophils represented <11% of the differential at each setting. There was a significant increase in PDGF and bFGF, a significant decrease in IGF-1, and no change in VEGF, with no difference among settings. CONCLUSION The system consistently concentrated platelets 5 times but was unable to reduce leukocytes, therefore resulting in leukocyte-rich PRP at each setting tested. Leukocytes had a differential composition of >89% lymphocytes and <11% neutrophils. For all settings, PDGF and bFGF were concentrated; IGF-1 was reduced; and VEGF was not significantly different from baseline. CLINICAL RELEVANCE These data can serve to guide clinicians considering using this particular PRP system. It consistently yielded leukocyte-rich PRP with a lymphocyte-predominant/neutrophil-reduced profile. Further research is needed to better understand how to apply this specific PRP in clinical practice.
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Affiliation(s)
- Michael Baria
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - W Kelton Vasileff
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Meghan Miller
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - James Borchers
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - David C Flanigan
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Sushmitha S Durgam
- Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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Influence of pH on the activity of thrombin-derived antimicrobial peptides. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2374-2384. [DOI: 10.1016/j.bbamem.2018.06.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 06/02/2018] [Accepted: 06/04/2018] [Indexed: 01/11/2023]
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