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Wang S, Neufurth M, Schepler H, Muñoz-Espí R, Ushijima H, Schröder HC, Wang X, Müller WEG. Liquid-liquid phase transition as a basis for novel materials for skin repair and regeneration. J Mater Chem B 2024; 12:9622-9638. [PMID: 39226118 DOI: 10.1039/d4tb01080a] [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: 09/05/2024]
Abstract
Inorganic materials are of increasing interest not only for bone repair but also for other applications in regenerative medicine. In this study, the combined effects of energy-providing, regeneratively active inorganic polyphosphate (polyP) and also morphogenetically active pearl powder on wound healing were investigated. Aragonite, the mineralic constituent of pearl nacre and thermodynamically unstable form of crystalline calcium carbonate, was found to be converted into a soluble state in the presence of a Ca2+-containing wound exudate, particularly upon addition of sodium polyP (Na-polyP), driven by the transfer of Ca2+ ions from aragonite to polyP, leading to liquid-liquid phase separation to form an aqueous Ca-polyP coacervate. This process is further enhanced in the presence of Ca-polyP nanoparticles (Ca-polyP-NP). Kinetic studies revealed that the coacervation of polyP and nacre aragonite in wound exudate is a very rapid process that results in the formation of a stronger gel with a porous structure compared to polyP alone. Coacervate formation, enabled by phase transition of crystalline aragonite in the presence of Na-polyP/Ca-polyP-NP and wound exudate, could also be demonstrated in a hydroxyethyl cellulose-based hydrogel used for wound treatment. Furthermore, it is shown that Na-polyP/Ca-polyP-NP together with nacre aragonite strongly enhances the proliferation of mesenchymal stem cells and promotes microtube formation in the in vitro angiogenesis assay with HUVEC endothelial cells. The latter effect was confirmed by gene expression studies, applying real-time polymerase chain reaction, using the biomarker genes VEGF (vascular endothelial growth factor) and hypoxia-inducible factor-1 α (HIF-1α). Division of Escherichia coli is suppressed when suspended in a matrix containing Na-polyP/Ca-polyP-NP and aragonite. The potential medical relevance of these findings is supported by an animal study on genetically engineered diabetic mice (db/db), which demonstrated a marked increase in granulation tissue and microvessel formation in regenerating experimental wounds treated with Ca-polyP-NP compared to controls. Co-administration of aragonite significantly accelerated the wound healing-promoting effect of polyP in db/db mice. Based on these results, we propose that the ability of polyP to form a mixed coacervate with aragonite, in addition to its energy (ATP)-generating function, can decisively contribute to the regenerative activity of this polymer in wound repair.
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Affiliation(s)
- Shunfeng Wang
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128 Mainz, Germany.
| | - Meik Neufurth
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128 Mainz, Germany.
| | - Hadrian Schepler
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Rafael Muñoz-Espí
- Institute of Materials Science (ICMUV), Universitat de València, C/Catedràtic José Beltrán 2, 46980 Paterna-València, Spain
| | - Hiroshi Ushijima
- Nihon University, Division of Microbiology, Department of Pathology and Microbiology, Nihon University-School of Medicine, Tokyo, Japan
| | - Heinz C Schröder
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128 Mainz, Germany.
| | - Xiaohong Wang
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128 Mainz, Germany.
| | - Werner E G Müller
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128 Mainz, Germany.
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Tsujino T, Kasahara T, Kawabata H, Watanabe T, Nishiyama K, Kitamura Y, Watanabe T, Okudera H, Mochizuki T, Ushiki T, Kawase T. Inhibitory effects of NaF on mitochondrial energy generation in human platelets in vitro. FRONTIERS IN TOXICOLOGY 2024; 6:1421184. [PMID: 39301511 PMCID: PMC11410780 DOI: 10.3389/ftox.2024.1421184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 08/22/2024] [Indexed: 09/22/2024] Open
Abstract
Background fluoride is a beneficial ion that has been used in various fields, from industrial products to therapeutics. However, due to its narrow therapeutic index, fluoride sometimes acts as a toxic agent at relatively higher concentrations in the human body. Based on the interest in genetic stability, its cytotoxic effects have been investigated mainly in nucleated, adherent cells, such as fibroblasts. However, the sensitivity of blood cells, especially anucleate platelets, to fluoride is poorly understood. To fill this gap in the literature, we investigated the effects of relatively low levels of fluoride on platelet energy metabolism, function, and viability. Methods Platelet-rich plasma (PRP) was prepared from 15 non-smoking healthy male adults (age: 28-63) and treated with NaF (0.5 or 1.0 mM) in microtubes for up to 3 days. Platelet function was evaluated based on aggregation and adhesion activities. Platelet energy metabolism was evaluated based on intracellular ATP levels, extracellular lactate levels, and respiration activities. The mitochondrial membrane potential (Em) and localization of reactive oxygen species (ROS) were visualized using cytochemical methods. Platelet viability was evaluated by cell counting and tetrazolium reduction. Result NaF (1 mM) significantly reduced platelet viability and inhibited functions. Behind these phenomena, NaF substantially decreased mitochondrial Em and increased ROS production along with significant decreases in oxygen consumption and ATP levels. Simultaneously, NaF increased the lactate levels. Although not statistically significant, similar effects were observed at 0.5 mM NaF. Conclusion At relatively low levels, NaF has the potential to attenuate platelet function probably primarily through the inhibition of mitochondrial energy generation. Cytotoxicity may be directly related to ROS production. These findings suggest that when used topically, for example, for caries prevention in the oral cavity, NaF could interfere with wound healing and tissue regeneration by endogenous and exogenously added platelets in the form of PRP.
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Affiliation(s)
| | | | - Hideo Kawabata
- R&D Division, Tokyo Plastic Dental Society, Tokyo, Japan
| | | | - Koji Nishiyama
- R&D Division, Tokyo Plastic Dental Society, Tokyo, Japan
| | | | - Takao Watanabe
- R&D Division, Tokyo Plastic Dental Society, Tokyo, Japan
| | - Hajime Okudera
- R&D Division, Tokyo Plastic Dental Society, Tokyo, Japan
| | - Tomoharu Mochizuki
- Department of Orthopaedic Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takashi Ushiki
- Division of Hematology and Oncology, Graduate School of Health Sciences, Niigata University, Niigata, Japan
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Tsutsumi K, Tippayamontri T, Hayashi M, Matsuda N, Goto Y. The dynamic relationship between inorganic polyphosphate and adenosine triphosphate in human non-small cell lung cancer H1299 cells. FEBS Open Bio 2024; 14:344-354. [PMID: 38105501 PMCID: PMC10839297 DOI: 10.1002/2211-5463.13753] [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: 10/10/2023] [Revised: 11/28/2023] [Accepted: 12/15/2023] [Indexed: 12/19/2023] Open
Abstract
Inorganic polyphosphate (polyP) plays a vital role in cellular energy metabolism and signaling, owing to its structure and high-energy phosphate bonds. Intracellular ATP functions both as a cellular energy source and a key factor in cell death, and ATP dynamics in tumor cells are crucial for advancing cancer therapy. In this study, we explored the interplay between polyP and ATP in cellular energy metabolism. Treatment with polyP did not affect cell proliferation of human non-small cell lung cancer H1299 and human glioblastoma T98G cell lines as compared to their respective control cells until 72 h post-treatment. The mitochondrial membrane potential (MMP) in polyP-treated cells was low, contrasting with the time-dependent increase observed in control cells. While the ATP content increased over time in untreated and Na-phosphate-treated control cells, it remained unchanged in polyP-treated cells. Furthermore, the addition of cyclosporine A, a mitochondrial permeability transition pore (mPTP) inhibitor, failed to restore ATP levels in polyP-treated cells. We performed lactate assays and western blot analysis to evaluate the effect of polyP on glucose metabolism and found no significant differences in lactate secretion or glucose-6-phosphate dehydrogenase (G6PD) activity between polyP-treated and control cells. Additional pyruvate restored MMP but had no effect on the cellular ATP content in polyP-treated cells. We observed no correlation between the Warburg effect and glucose metabolism during ATP depletion in polyP-treated cells. Further investigation is warranted to explore the roles of polyP and ATP in cancer cell energy metabolism, which might offer potential avenues for therapeutic interventions.
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Affiliation(s)
- Kaori Tsutsumi
- Department of Biomedical Science and EngineeringFaculty of Health SciencesHokkaido UniversitySapporoJapan
| | - Thititip Tippayamontri
- Department of Radiological Technology and Medical PhysicsFaculty of Allied Health SciencesChulalongkorn UniversityBangkokThailand
| | - Mari Hayashi
- Department of Health Sciences, School of MedicineHokkaido UniversitySapporoJapan
| | - Nobuto Matsuda
- Department of Health Sciences, School of MedicineHokkaido UniversitySapporoJapan
| | - Yusaku Goto
- Department of Health Sciences, School of MedicineHokkaido UniversitySapporoJapan
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Nakamura M, Masuki H, Kawabata H, Watanabe T, Watanabe T, Tsujino T, Isobe K, Kitamura Y, Mourão CF, Kawase T. Plasma Gel Made of Platelet-Poor Plasma: In Vitro Verification as a Carrier of Polyphosphate. Biomedicines 2023; 11:2871. [PMID: 38001872 PMCID: PMC10669793 DOI: 10.3390/biomedicines11112871] [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: 09/09/2023] [Revised: 10/11/2023] [Accepted: 10/22/2023] [Indexed: 11/26/2023] Open
Abstract
Plasma gel (PG) is a blood-derived biomaterial that can be prepared by heating or chemical cross-linking without the aid of intrinsic coagulation activity and has gradually been applied in the field of esthetic surgery. To explore the applicability of PG in regenerative therapy or tissue engineering, in this study, we focused on the advantages of the heating method and verified the retention capacity of the resulting PG for polyphosphate (polyP), a polyanion that contributes to hemostasis and bone regeneration. Pooled platelet-poor plasma (PPP) was prepared from four healthy male adult donors, mixed with synthetic polyP, and heated at 75 °C for 10 or 30 min to prepare PG in microtubes. The PG was incubated in PBS at 37 °C, and polyP levels in the extra-matrix PBS were determined by the fluorometric method every 24 h. The microstructure of PG was examined using scanning electron microscopy. In the small PG matrices, almost all of the added polyP (~100%) was released within the initial 24 h. In contrast, in the large PG matrices, approximately 50% of the polyP was released within the initial 24 h and thereafter gradually released over time. Owing to its simple chemical structure, linear polyP cannot be theoretically retained in the gel matrices used in this study. However, these findings suggest that thermally prepared PG matrices can be applied as carriers of polyP in tissue engineering and regenerative medicine.
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Affiliation(s)
- Masayuki Nakamura
- Tokyo Plastic Dental Society, Tokyo 114-0002, Japan; (M.N.); (H.M.); (H.K.); (T.W.); (T.W.); (T.T.); (K.I.); (Y.K.)
| | - Hideo Masuki
- Tokyo Plastic Dental Society, Tokyo 114-0002, Japan; (M.N.); (H.M.); (H.K.); (T.W.); (T.W.); (T.T.); (K.I.); (Y.K.)
| | - Hideo Kawabata
- Tokyo Plastic Dental Society, Tokyo 114-0002, Japan; (M.N.); (H.M.); (H.K.); (T.W.); (T.W.); (T.T.); (K.I.); (Y.K.)
| | - Taisuke Watanabe
- Tokyo Plastic Dental Society, Tokyo 114-0002, Japan; (M.N.); (H.M.); (H.K.); (T.W.); (T.W.); (T.T.); (K.I.); (Y.K.)
| | - Takao Watanabe
- Tokyo Plastic Dental Society, Tokyo 114-0002, Japan; (M.N.); (H.M.); (H.K.); (T.W.); (T.W.); (T.T.); (K.I.); (Y.K.)
| | - Tetsuhiro Tsujino
- Tokyo Plastic Dental Society, Tokyo 114-0002, Japan; (M.N.); (H.M.); (H.K.); (T.W.); (T.W.); (T.T.); (K.I.); (Y.K.)
| | - Kazushige Isobe
- Tokyo Plastic Dental Society, Tokyo 114-0002, Japan; (M.N.); (H.M.); (H.K.); (T.W.); (T.W.); (T.T.); (K.I.); (Y.K.)
| | - Yutaka Kitamura
- Tokyo Plastic Dental Society, Tokyo 114-0002, Japan; (M.N.); (H.M.); (H.K.); (T.W.); (T.W.); (T.T.); (K.I.); (Y.K.)
| | - Carlos Fernando Mourão
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA;
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan
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Mochizuki T, Ushiki T, Suzuki K, Sato M, Ishiguro H, Suwabe T, Edama M, Omori G, Yamamoto N, Kawase T. Characterization of Leukocyte- and Platelet-Rich Plasma Derived from Female Collage Athletes: A Cross-Sectional Cohort Study Focusing on Growth Factor, Inflammatory Cytokines, and Anti-Inflammatory Cytokine Levels. Int J Mol Sci 2023; 24:13592. [PMID: 37686398 PMCID: PMC10488049 DOI: 10.3390/ijms241713592] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
Platelet-rich plasma (PRP) has been increasingly used in sports medicine owing to its various advantages. The purpose of our project was to standardize the parameters before performing large-scale clinical trials in the near future to precisely evaluate individual PRP quality. To examine the effects of regular exercise on PRP quality, this study focused on young female athletes, who have been relatively less studied. Blood samples were obtained from female college athletes (n = 35) and ordinary healthy adults (n = 30), which were considered as controls, and leukocyte-rich PRP (L-PRP) was prepared manually. Body composition indices were determined using a bathroom weight scale equipped with an impedance meter. Growth factors and cytokines were quantified using ELISA kits. Platelet-derived growth factor-BB (PDGF-BB) and Transforming-growth factors β1 (TGFβ1) levels (per platelet) in L-PRP were significantly lower in female athletes than in controls. In contrast, Interleukin-1β and Interleukin 1 receptor antagonist (IL-1RA) levels (per platelet and L-PRP) in L-PRP were significantly higher in athletes, and this difference was more prominent in IL-1RA. These findings suggest that L-PRP from athletes may facilitate the inflammatory phase of the healing process by regulating the pro-inflammatory and anti-inflammatory balance. These chemical compositions can be adopted as "must-check" parameters to characterize individual PRP preparations prior to clinical trials.
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Affiliation(s)
- Tomoharu Mochizuki
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan;
| | - Takashi Ushiki
- Division of Hematology and Oncology, Graduate School of Health Sciences, Niigata University, Niigata 951-9518, Japan;
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata 951-8520, Japan; (K.S.)
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata 951-8510, Japan; (H.I.); (T.S.)
| | - Katsuya Suzuki
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata 951-8520, Japan; (K.S.)
| | - Misato Sato
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata 951-8520, Japan; (K.S.)
| | - Hajime Ishiguro
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata 951-8510, Japan; (H.I.); (T.S.)
| | - Tatsuya Suwabe
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata 951-8510, Japan; (H.I.); (T.S.)
| | - Mutsuaki Edama
- Department of Health and Sports, Faculty of Health Sciences, Niigata University of Health and Welfare, Niigata 950-3102, Japan; (M.E.); (G.O.)
| | - Go Omori
- Department of Health and Sports, Faculty of Health Sciences, Niigata University of Health and Welfare, Niigata 950-3102, Japan; (M.E.); (G.O.)
| | - Noriaki Yamamoto
- Department of Orthopaedic Surgery, Niigata Rehabilitation Hospital, Niigata 950-3304, Japan;
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan
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Ushiki T, Mochizuki T, Suzuki K, Kamimura M, Ishiguro H, Suwabe T, Watanabe S, Omori G, Yamamoto N, Kawase T. Strategic analysis of body composition indices and resting platelet ATP levels in professional soccer players for better platelet-rich plasma therapy. Front Bioeng Biotechnol 2023; 11:1255860. [PMID: 37711445 PMCID: PMC10499317 DOI: 10.3389/fbioe.2023.1255860] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/17/2023] [Indexed: 09/16/2023] Open
Abstract
Background: Autologous platelet-rich plasma (PRP) therapy is ambiguously thought to be more effective in elite athletes than in sedentary patients, although the possible importance of recipient responsiveness remains poorly understood. To address this issue, along with the well-known PRP quality, in this initial study, we evaluated two candidate biomarkers: body composition indices (BCIs), which reflect systemic physical conditions, and resting platelet ATP levels, which reflect platelet energy expenditure and the mass of energy generation units. Methods: In this cross-sectional cohort study, blood samples were collected from male professional soccer players (PSPs) on a local professional team during the off-season and platelet ATP levels were quantified using an ATP luminescence assay kit. BCIs were measured using the body mass impedance method. Age-matched male sedentary participants were used as the controls. Results: Among the BCIs, the body mass index, basal metabolic rate (BMR), and skeletal muscle weight levels were higher in the PSPs than in the controls. The platelet ATP levels in the PSPs group were significantly lower than those in the control group. The correlation between BMR and platelet ATP levels was moderately negative in the control group, but weakly positive in the PSPs group. Conclusion: Owing to regular physical exercise, PSPs had higher BMR levels and lower platelet ATP levels without a significant mutual correlation compared to sedentary controls. This study did not indicate the influence of these biomarkers on the success of PRP therapy but provided evidence for a better understanding of PRP therapy, particularly for elite athletes.
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Affiliation(s)
- Takashi Ushiki
- Division of Hematology and Oncology, Graduate School of Health Sciences, Niigata University, Niigata, Japan
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Tomoharu Mochizuki
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Katsuya Suzuki
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Masami Kamimura
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Hajime Ishiguro
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Tatsuya Suwabe
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Satoshi Watanabe
- Department of Orthopaedic Surgery, Niigata Medical Center, Niigata, Japan
| | - Go Omori
- Department of Health and Sports, Faculty of Health Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Noriaki Yamamoto
- Department of Orthopaedic Surgery, Niigata Rehabilitation Hospital, Niigata, Japan
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
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Kawase T, Suzuki K, Kamimura M, Mochizuki T, Ushiki T. Optimized Protocol for Preservation of Human Platelet Samples for Fluorometric Polyphosphate Quantification. Methods Protoc 2023; 6:59. [PMID: 37489426 PMCID: PMC10366864 DOI: 10.3390/mps6040059] [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: 03/07/2023] [Revised: 05/30/2023] [Accepted: 06/20/2023] [Indexed: 07/26/2023] Open
Abstract
Platelet polyphosphate (polyP) can be conveniently quantified by exploiting a recent methodological breakthrough using 4',6-diamidino-2-phenylindole (DAPI). However, the preservation of these biological samples has not yet been standardized. In a preliminary study, potential protocols were screened, while accepted protocols were further tested in this study. Pure-platelet-rich plasma (P-PRP) samples and washed platelet suspensions were prepared using blood obtained from non-smoking healthy male donors and were fixed with ThromboFix for 20-24 h at 4 °C. Mass polyP levels were determined using a fluorometer at wavelengths of 425 and 525 nm. Platelet polyP levels were normalized to platelet counts. Statistical analyses were performed using non-parametric tests. Platelet polyP levels significantly decreased by 20% after 7 days in the platelet suspension maintained under fixed conditions at 4 °C (control). In contrast, the platelet polyP levels in both the P-PRP and washed platelet suspensions were maintained without a significant reduction for up to 6 weeks by removing ThromboFix after fixation and subsequent freezing in pure water at -80 °C. Fluorometric polyP quantification often interferes with the low specificity of DAPI binding and the wavelength used. Our validated protocols will enable long-term preservation and high-throughput polyP quantification and can be applied to relatively large cohort studies.
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Affiliation(s)
- Tomoyuki Kawase
- Division of Oral Bioengineering, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan
| | - Katsuya Suzuki
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata 951-8520, Japan
| | - Masami Kamimura
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata 951-8520, Japan
| | - Tomoharu Mochizuki
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
| | - Takashi Ushiki
- Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata 951-8520, Japan
- Division of Hematology and Oncology, Graduate School of Health Sciences, Niigata University, Niigata 951-8518, Japan
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata 951-8510, Japan
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Mochizuki T, Ushiki T, Watanabe S, Omori G, Kawase T. The levels of TGFβ1, VEGF, PDGF-BB, and PF4 in platelet-rich plasma of professional soccer players: a cross-sectional pilot study. J Orthop Surg Res 2022; 17:465. [PMID: 36303196 PMCID: PMC9615199 DOI: 10.1186/s13018-022-03362-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/20/2022] [Indexed: 11/10/2022] Open
Abstract
Background Regenerative therapy using platelet-rich plasma (PRP), a rich source of growth factors, has become popular in orthopedic sports medicine. Elite athletes prefer PRP therapy for their injured muscles and tendons primarily to avoid the possible risks of surgical treatment. However, the clinical effectiveness of PRP therapy in elite athletes compared to that in non-athletes remains unknown. Therefore, to investigate the effectiveness of PRP therapy in professional athletes (pro-athletes), we focused on the quality of PRP preparations and compared the levels of bioactive molecules between pro-athletes and non-athletes.
Methods PRP was prepared from healthy, non-smoking male professional soccer players (pro-athletes) (n = 22) and non-athletes (VEGF: n = 34, others: n = 38). The levels of TGFβ1, PDGF-BB, VEGF, and PF4 were determined using ELISA kits. Polyphosphate was probed with 4’,6-diamidino-2-phenylindole and monitored using a fluorometer. The body composition of the donors was determined using a bathroom weighing scale. Results The levels of TGFβ1 and VEGF were significantly lower in pro-athletes than in non-athletes, whereas PF4 levels were significantly higher in pro-athletes. No significant difference was found in PDGF-BB levels between these groups. Biomolecule levels were not correlated with polyphosphate levels. Conclusion TGFβ1, VEGF, and PDGF-BB levels in pro-athletes were not higher than those in non-athletes. These findings suggest that growth factor levels in PRP may not be a predominant determinant of the clinical effectiveness of PRP therapy in pro-athletes. Increased PF4 levels in pro-athletes suggest an immunological function of PRP that may positively influence tissue regeneration.
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Affiliation(s)
- Tomoharu Mochizuki
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Takashi Ushiki
- Division of Hematology and Oncology, Graduate School of Health Sciences, Niigata University, Niigata, Japan.,Department of Transfusion Medicine, Cell Therapy and Regenerative Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan.,Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Satoshi Watanabe
- Department of Orthopaedic Surgery, Niigata Medical Center, Niigata, Japan
| | - Go Omori
- Department of Health and Sports, Faculty of Health Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
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