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Chen Y, Deng J, Zhang R, Shao H, Xu D, Liu L. Rapid and Nondestructive Evaluation of Platelet Function in Whole Blood by Microfluidic Deterministic Cytometry. Anal Chem 2024; 96:145-153. [PMID: 38146268 DOI: 10.1021/acs.analchem.3c03400] [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: 12/27/2023]
Abstract
Platelet size is a determinant of platelet function. Here, a new microfluidic deterministic cytometry packed with S-shaped micropillars (S-MDC) was developed to rapidly and sensitively determine the apparent size (Dapp) of platelets, which was used to evaluate platelet function. The platelet Dapp in the diluted whole blood was rapidly and label-freely measured by S-MDC within 2 min under shear rates (0.4 mm/s) that mimicked physiological conditions. The level of CD62p on platelets scarcely changed before and after platelets went through the whole S-MDC, indicating that the platelet function was nondestructive. Notably, the human platelet Dapp determined before and after thrombin addition by S-MDC was highly coincident with the levels of CD62p on the platelet surface by flow cytometry (r = 0.819), revealing that the human platelet Dapp was available to assess the platelet activation state. In addition, the results of the rat platelet Dapp were consistent with myocardial injury of rats with myocardial ischemia before and after treatment with antiplatelet agents, suggesting that rat platelet Dapp can be used to reflect myocardial injury in vivo outcomes. These findings reveal that S-MDC is a promising technique for screening tests for a bleeding disorder, in addition to monitoring antiplatelet drugs.
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Affiliation(s)
- Yue Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jieqi Deng
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Runhui Zhang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Huaze Shao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Dan Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lihong Liu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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Dohet-Eraly J, Boudjeltia KZ, Rousseau A, Queeckers P, Lelubre C, Desmet JM, Chopard B, Yourassowsky C, Dubois F. Three-dimensional analysis of blood platelet spreading using digital holographic microscopy: a statistical study of the differential effect of coatings in healthy volunteers and dialyzed patients. BIOMEDICAL OPTICS EXPRESS 2022; 13:502-513. [PMID: 35154888 PMCID: PMC8803030 DOI: 10.1364/boe.448817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
In cardiovascular disorders, the study of thrombocytes, commonly known as platelets, is highly important since they are involved in blood clotting, essential in hemostasis, and they can in pathological situations affect the blood circulation. In this paper, single deposited platelets are measured using interferometric digital holographic microscopy. We have shown that the average optical height of platelets is significantly lower in healthy volunteers than in dialyzed patients, meaning a better spreading. It demonstrates the great interest for assessing this parameter in any patients, and therefore the high potential of analyzing single spread platelets using digital holographic microscopy in fundamental research as well as a diagnostic tool in routine laboratories, for usual blood tests.
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Affiliation(s)
- Jérôme Dohet-Eraly
- Laboratory of Experimental Medicine (ULB222), Faculty of Medicine, Université libre de Bruxelles, Centre hospitalier universitaire de Charleroi, 706 Rue de Gozée, 6110 Montigny-le-Tilleul, Belgium
- Microgravity Research Centre, Université libre de Bruxelles, 50 Avenue Franklin Roosevelt, 1050 Bruxelles, Belgium
- These authors contributed equally
| | - Karim Zouaoui Boudjeltia
- Laboratory of Experimental Medicine (ULB222), Faculty of Medicine, Université libre de Bruxelles, Centre hospitalier universitaire de Charleroi, 706 Rue de Gozée, 6110 Montigny-le-Tilleul, Belgium
- These authors contributed equally
| | - Alexandre Rousseau
- Laboratory of Experimental Medicine (ULB222), Faculty of Medicine, Université libre de Bruxelles, Centre hospitalier universitaire de Charleroi, 706 Rue de Gozée, 6110 Montigny-le-Tilleul, Belgium
| | - Patrick Queeckers
- Microgravity Research Centre, Université libre de Bruxelles, 50 Avenue Franklin Roosevelt, 1050 Bruxelles, Belgium
| | - Christophe Lelubre
- Laboratory of Experimental Medicine (ULB222), Faculty of Medicine, Université libre de Bruxelles, Centre hospitalier universitaire de Charleroi, 706 Rue de Gozée, 6110 Montigny-le-Tilleul, Belgium
- Department of Internal Medicine, Centre hospitalier universitaire de Charleroi - Hôpital civil Marie Curie, 140 Chaussée de Bruxelles, 6042 Charleroi, Belgium
| | - Jean-Marc Desmet
- Department of Nephrology, Centre hospitalier universitaire de Charleroi - Hôpital Vésale, 706 Rue de Gozée, 6110 Montigny-le-Tilleul, Belgium
| | - Bastien Chopard
- Computer Science Department, University of Geneva, 7 Route de Drize, 1227 Carouge, Switzerland
| | - Catherine Yourassowsky
- Microgravity Research Centre, Université libre de Bruxelles, 50 Avenue Franklin Roosevelt, 1050 Bruxelles, Belgium
| | - Frank Dubois
- Microgravity Research Centre, Université libre de Bruxelles, 50 Avenue Franklin Roosevelt, 1050 Bruxelles, Belgium
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The Platelet Concentrates Therapy: From the Biased Past to the Anticipated Future. Bioengineering (Basel) 2020; 7:bioengineering7030082. [PMID: 32751638 PMCID: PMC7552713 DOI: 10.3390/bioengineering7030082] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 07/25/2020] [Accepted: 07/28/2020] [Indexed: 12/23/2022] Open
Abstract
The ultimate goal of research on platelet concentrates (PCs) is to develop a more predictable PC therapy. Because platelet-rich plasma (PRP), a representative PC, was identified as a possible therapeutic agent for bone augmentation in the field of oral surgery, PRP and its derivative, platelet-rich fibrin (PRF), have been increasingly applied in a regenerative medicine. However, a rise in the rate of recurrence (e.g., in tendon and ligament injuries) and adverse (or nonsignificant) clinical outcomes associated with PC therapy have raised fundamental questions regarding the validity of the therapy. Thus, rigorous evidence obtained from large, high-quality randomized controlled trials must be presented to the concerned regulatory authorities of individual countries or regions. For the approval of the regulatory authorities, clinicians and research investigators should understand the real nature of PCs and PC therapy (i.e., adjuvant therapy), standardize protocols of preparation (e.g., choice of centrifuges and tubes) and clinical application (e.g., evaluation of recipient conditions), design bias-minimized randomized clinical trials, and recognize superfluous brand competitions that delay sound progress. In this review, we retrospect the recent past of PC research, reconfirm our ultimate goals, and discuss what will need to be done in future.
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Aizawa H, Kawabata H, Sato A, Masuki H, Watanabe T, Tsujino T, Isobe K, Nakamura M, Nakata K, Kawase T. A Comparative Study of The Effects of Anticoagulants on Pure Platelet-Rich Plasma Quality and Potency. Biomedicines 2020; 8:biomedicines8030042. [PMID: 32106422 PMCID: PMC7148468 DOI: 10.3390/biomedicines8030042] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/20/2020] [Accepted: 02/22/2020] [Indexed: 01/25/2023] Open
Abstract
It is generally accepted that citrate or the A-form of acid-citrate-dextrose (ACD-A) are suitable for preparing platelet-rich plasma (PRP) for regenerative therapy. However, this is based on evidence from blood transfusions and not from regenerative medicine. Thus, we examined the effects of anticoagulants, such as ACD-A, ethylenediaminetetraacetic acid (EDTA), and heparin, on the regenerative quality of PRP to address this gap. The blood samples were collected in the presence of anticoagulants and were processed to prepare pure-PRP. Platelet size, activation status, and intra-platelet free Ca2+ concentration were determined while using a hematology analyzer and flow cytometer. Platelet-derived growth factor-BB (PDGF-BB) was quantified while using an ELISA. In pure-PRP samples, EDTA caused platelet swelling and activation, but yielded the highest number of platelets. Heparin aggregated platelets and disturbed the overall counting of blood cells. However, no significant differences in PDGF-BB levels were observed among the anticoagulants tested. Moreover, when considering the easy preparation of platelet suspensions, without the need for high-level pipetting skills, these findings suggest the comparable potency of EDTA-derived pure-PRP in tissue regeneration and support the use of EDTA in the preparation of pure-PRP. Further in vivo studies are required in animal models to exclude the possible negative effects of including EDTA in pure-PRP preparations.
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Affiliation(s)
- Hachidai Aizawa
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan; (H.A.); (H.K.); (A.S.); (H.M.); (T.W.); (T.T.); (K.I.); (M.N.)
| | - Hideo Kawabata
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan; (H.A.); (H.K.); (A.S.); (H.M.); (T.W.); (T.T.); (K.I.); (M.N.)
| | - Atsushi Sato
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan; (H.A.); (H.K.); (A.S.); (H.M.); (T.W.); (T.T.); (K.I.); (M.N.)
| | - Hideo Masuki
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan; (H.A.); (H.K.); (A.S.); (H.M.); (T.W.); (T.T.); (K.I.); (M.N.)
| | - Taisuke Watanabe
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan; (H.A.); (H.K.); (A.S.); (H.M.); (T.W.); (T.T.); (K.I.); (M.N.)
| | - Tetsuhiro Tsujino
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan; (H.A.); (H.K.); (A.S.); (H.M.); (T.W.); (T.T.); (K.I.); (M.N.)
| | - Kazushige Isobe
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan; (H.A.); (H.K.); (A.S.); (H.M.); (T.W.); (T.T.); (K.I.); (M.N.)
| | - Masayuki Nakamura
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan; (H.A.); (H.K.); (A.S.); (H.M.); (T.W.); (T.T.); (K.I.); (M.N.)
| | - Koh Nakata
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata 951-8520, Japan;
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Institute of Medicine and Dentistry, Niigata University, Niigata 951-8514, Japan
- Correspondence: ; Tel.: +81-25-262-7559
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Platelet Adhesion on Commercially Pure Titanium Plates in Vitro II. Immunofluorescence Visualization of PDGF-B, TGFβ1, and PPARγ Released from Activated Adherent Platelets. Dent J (Basel) 2019; 7:dj7040109. [PMID: 31752355 PMCID: PMC6960926 DOI: 10.3390/dj7040109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/14/2019] [Accepted: 11/14/2019] [Indexed: 12/11/2022] Open
Abstract
Recent progress in the industrial development of dental implants has improved their surface bio-affinity, while clinical implantologists attempt to improve it through coating with various compounds, including platelet-rich plasma (PRP) in clinical settings. However, it is poorly understood how PRP acts on titanium surfaces. To validate this surface modification method and demonstrate how platelet-derived soluble biomolecules released from the activated adherent platelets act on plain, commercially pure-titanium (cp-Ti) plates, we evaluated the distribution of biomolecules by immunofluorescence. PPARγ, PDGF-B, and TGFβ1 were similarly released at immunofluorescence levels from activated adherent platelets, retained in the surrounding extra-platelet spaces for a while, and did not immediately diffuse away to distant spaces. Exogenously added CaCl2 augmented release and retention of those biomolecules along with activation and aggregation. Taken together with our previous data regarding platelet adhesion, these findings suggest that especially when treated with CaCl2, platelets immediately adhere on cp-Ti plates to release their stored biomolecules in the absence of plasma proteins and that these biomolecules do not diffuse away, but stay longer in extra-platelet spaces around the platelets by newly formed, immature fibrin fiber fragments. Consequently, these retained biomolecules are anticipated to cooperatively stabilize implants by stimulating alveolar bone regeneration and integration.
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Tsujino T, Isobe K, Kawabata H, Aizawa H, Yamaguchi S, Kitamura Y, Masuki H, Watanabe T, Okudera H, Nakata K, Kawase T. Spectrophotometric Determination of the Aggregation Activity of Platelets in Platelet-Rich Plasma for Better Quality Control. Dent J (Basel) 2019; 7:dj7020061. [PMID: 31163628 PMCID: PMC6631196 DOI: 10.3390/dj7020061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 05/29/2019] [Accepted: 05/30/2019] [Indexed: 02/06/2023] Open
Abstract
Although platelet-rich plasma (PRP) is now widely used in regenerative medicine and dentistry, contradictory clinical outcomes have often been obtained. To minimize such differences and to obtain high quality evidence from clinical studies, the PRP preparation protocol needs to be standardized. In addition, emphasis must be placed on quality control. Following our previous spectrophotometric method of platelet counting, in this study, another simple and convenient spectrophotometric method to determine platelet aggregation activity has been developed. Citrated blood samples were collected from healthy donors and used. After centrifugation twice, platelets were suspended in phosphate buffered saline (PBS) and adenosine diphosphate (ADP)-induced aggregation was determined using a spectrophotometer at 615 nm. For validation, platelets pretreated with aspirin, an antiplatelet agent, or hydrogen peroxide (H2O2), an oxidative stress-inducing agent, were also analyzed. Optimal platelet concentration, assay buffer solution, and representative time point for determination of aggregation were found to be 50–100 × 104/μL, PBS, and 3 min after stimulation, respectively. Suppressed or injured platelets showed a significantly lower aggregation response to ADP. Therefore, it suggests that this spectrophotometric method may be useful in quick chair-side evaluation of individual PRP quality.
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Affiliation(s)
| | - Kazushige Isobe
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan.
| | - Hideo Kawabata
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan.
| | - Hachidai Aizawa
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan.
| | | | - Yutaka Kitamura
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan.
| | - Hideo Masuki
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan.
| | | | - Hajime Okudera
- Tokyo Plastic Dental Society, Kita-ku, Tokyo 114-0002, Japan.
| | - Koh Nakata
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata 951-8520, Japan.
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Institute of Medicine and Dentistry, Niigata University, Niigata 951-8514, Japan.
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Takahashi A, Takahashi S, Tsujino T, Isobe K, Watanabe T, Kitamura Y, Watanabe T, Nakata K, Kawase T. Platelet adhesion on commercially pure titanium plates in vitro I: effects of plasma components and involvement of the von Willebrand factor and fibronectin. Int J Implant Dent 2019; 5:5. [PMID: 30799507 PMCID: PMC6387980 DOI: 10.1186/s40729-019-0160-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 01/14/2019] [Indexed: 12/13/2022] Open
Abstract
Background Platelet-rich plasma (PRP) is widely used in regenerative dentistry. Furthermore, it is often applied in the pretreatment of titanium implants to improve their surface bioaffinity and initial stability. However, effects of PRP application on implant surface at cellular and molecular levels remain poorly understood. Therefore, we examined platelet adhesion on commercially pure titanium (cp-Ti) plates, with a particular focus on fibrinogen (FGN), von Willebrand factor (vWF), and fibronectin (FN), in the presence or absence of plasma components. Methods Citrated blood samples were obtained from six healthy male volunteers, and pure-PRP (P-PRP) and pure platelet suspensions in phosphate-buffered saline (PBS) were prepared. Platelet adhesion on cp-Ti plate surface was evaluated by phalloidin staining and tetrazolium dye assay. Distribution of FGN, vWF, FN, albumin, CD62P, and CD63 was examined by immunocytochemical analysis. Results Platelets in PBS suspensions rapidly and time-dependently adhered to cp-Ti plate surface, but this adhesion was substantially disturbed by the presence of plasma components. FGN was most preferably adsorbed regardless of the presence or absence of plasma components, while vWF and FN showed greater accumulation on platelet adhesion area. Conclusions Although FGN is rapidly and abundantly adsorbed on cp-Ti plate surface, vWF and FN function as major platelet adhesion molecules in citrated blood samples. After pretreatment with P-PRP, however, platelets adhered to cp-Ti much less efficiently. Therefore, P-PRP pretreatment might not directly contribute to surface functionalization, initial stabilization, and osseointegration of machined or similar types of implants. Electronic supplementary material The online version of this article (10.1186/s40729-019-0160-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | - Taisuke Watanabe
- Division of Anatomy and Cell Biology of the Hard Tissue, Institute of Medicine and Dentistry, Niigata University, Niigata, Japan
| | - Yutaka Kitamura
- Department of Oral and Maxillofacial Surgery, Matsumoto Dental University, Shiojiri, Japan
| | - Takao Watanabe
- Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Koh Nakata
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Institute of Medicine and Dentistry, Niigata University, Niigata, Japan.
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