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Shekari F, Alibhai FJ, Baharvand H, Börger V, Bruno S, Davies O, Giebel B, Gimona M, Salekdeh GH, Martin‐Jaular L, Mathivanan S, Nelissen I, Nolte‐’t Hoen E, O'Driscoll L, Perut F, Pluchino S, Pocsfalvi G, Salomon C, Soekmadji C, Staubach S, Torrecilhas AC, Shelke GV, Tertel T, Zhu D, Théry C, Witwer K, Nieuwland R. Cell culture-derived extracellular vesicles: Considerations for reporting cell culturing parameters. JOURNAL OF EXTRACELLULAR BIOLOGY 2023; 2:e115. [PMID: 38939735 PMCID: PMC11080896 DOI: 10.1002/jex2.115] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/18/2023] [Accepted: 09/17/2023] [Indexed: 06/29/2024]
Abstract
Cell culture-conditioned medium (CCM) is a valuable source of extracellular vesicles (EVs) for basic scientific, therapeutic and diagnostic applications. Cell culturing parameters affect the biochemical composition, release and possibly the function of CCM-derived EVs (CCM-EV). The CCM-EV task force of the Rigor and Standardization Subcommittee of the International Society for Extracellular Vesicles aims to identify relevant cell culturing parameters, describe their effects based on current knowledge, recommend reporting parameters and identify outstanding questions. While some recommendations are valid for all cell types, cell-specific recommendations may need to be established for non-mammalian sources, such as bacteria, yeast and plant cells. Current progress towards these goals is summarized in this perspective paper, along with a checklist to facilitate transparent reporting of cell culturing parameters to improve the reproducibility of CCM-EV research.
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Affiliation(s)
- Faezeh Shekari
- Department of Stem Cells and Developmental Biology, Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECRTehranIran
- Advanced Therapy Medicinal Product Technology Development Center (ATMP‐TDC), Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECRTehranIran
| | | | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research CenterRoyan Institute for Stem Cell Biology and Technology, ACECRTehranIran
- Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in BiologyUniversity of Science and CultureTehranIran
| | - Verena Börger
- Institute for Transfusion MedicineUniversity Hospital Essen, University of Duisburg‐EssenEssenGermany
| | - Stefania Bruno
- Department of Medical Sciences and Molecular Biotechnology CenterUniversity of TorinoTurinItaly
| | - Owen Davies
- School of Sport, Exercise and Health SciencesLoughborough UniversityLoughboroughUK
| | - Bernd Giebel
- Institute for Transfusion MedicineUniversity Hospital Essen, University of Duisburg‐EssenEssenGermany
| | - Mario Gimona
- GMP UnitSpinal Cord Injury & Tissue Regeneration Centre Salzburg (SCI‐TReCS) and Research Program “Nanovesicular Therapies” Paracelsus Medical UniversitySalzburgAustria
| | | | - Lorena Martin‐Jaular
- Institut Curie, INSERM U932 and Curie CoreTech Extracellular VesiclesPSL Research UniversityParisFrance
| | - Suresh Mathivanan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular ScienceLa Trobe UniversityMelbourneVICAustralia
| | - Inge Nelissen
- VITO (Flemish Institute for Technological Research), Health departmentBoeretangBelgium
| | - Esther Nolte‐’t Hoen
- Department of Biomolecular Health Sciences, Faculty of Veterinary MedicineUtrecht UniversityUtrechtThe Netherlands
| | - Lorraine O'Driscoll
- School of Pharmacy and Pharmaceutical Sciences & Trinity Biomedical Sciences InstituteTrinity College DublinDublinIreland
| | - Francesca Perut
- Biomedical Science and Technologies and Nanobiotechnology LabIRCCS Istituto Ortopedico RizzoliBolognaItaly
| | - Stefano Pluchino
- Department of Clinical NeurosciencesUniversity of CambridgeCambridgeUK
| | - Gabriella Pocsfalvi
- Institute of Biosciences and BioResourcesNational Research CouncilNaplesItaly
| | - Carlos Salomon
- Translational Extracellular Vesicles in Obstetrics and Gynae‐Oncology Group, UQ Centre for Clinical Research, Royal Brisbane and Women's Hospital, Faculty of MedicineThe University of QueenslandBrisbaneAustralia
| | - Carolina Soekmadji
- School of Biomedical Sciences, Faculty of MedicineUniversity of QueenslandBrisbaneAustralia
| | | | - Ana Claudia Torrecilhas
- Laboratório de Imunologia Celular e Bioquímica de Fungos e Protozoários, Departamento de Ciências FarmacêuticasUniversidade Federal de São Paulo (UNIFESP)SPBrazil
| | - Ganesh Vilas Shelke
- Neurosciences and Cellular and Structural Biology Division, Eunice Kennedy Shriver National Institute of Child Health and Human DevelopmentNational Institutes of HealthBethesdaMarylandUSA
| | - Tobias Tertel
- Institute for Transfusion MedicineUniversity Hospital Essen, University of Duisburg‐EssenEssenGermany
| | - Dandan Zhu
- The Ritchie CentreHudson Institute of Medical ResearchClaytonVICAustralia
| | - Clotilde Théry
- Institut Curie, INSERM U932 and Curie CoreTech Extracellular VesiclesPSL Research UniversityParisFrance
| | - Kenneth Witwer
- Departments of Molecular and Comparative Pathobiology and Neurology and Richman Family Precision Medicine Center of Excellence in Alzheimer's DiseaseJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Rienk Nieuwland
- Laboratory of Experimental Clinical Chemistry, Department of Clinical Chemistry, Amsterdam University Medical CentersLocation AMC, University of AmsterdamAmsterdamThe Netherlands
- Amsterdam Vesicle Center, Amsterdam University Medical Centers, location AMCUniversity of AmsterdamAmsterdamThe Netherlands
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Canceill T, Jourdan G, Kémoun P, Guissard C, Monsef YA, Bourdens M, Chaput B, Cavalie S, Casteilla L, Planat-Bénard V, Monsarrat P, Raymond-Letron I. Characterization and Safety Profile of a New Combined Advanced Therapeutic Medical Product Platelet Lysate-Based Fibrin Hydrogel for Mesenchymal Stromal Cell Local Delivery in Regenerative Medicine. Int J Mol Sci 2023; 24:ijms24032206. [PMID: 36768532 PMCID: PMC9916739 DOI: 10.3390/ijms24032206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/25/2023] Open
Abstract
Adipose-derived mesenchymal stromal cells (ASC) transplant to recover the optimal tissue structure/function relationship is a promising strategy to regenerate tissue lesions. Because filling local tissue defects by injection alone is often challenging, designing adequate cell carriers with suitable characteristics is critical for in situ ASC delivery. The aim of this study was to optimize the generation phase of a platelet-lysate-based fibrin hydrogel (PLFH) as a proper carrier for in situ ASC implantation and (1) to investigate in vitro PLFH biomechanical properties, cell viability, proliferation and migration sustainability, and (2) to comprehensively assess the local in vivo PLFH/ASC safety profile (local tolerance, ASC fate, biodistribution and toxicity). We first defined the experimental conditions to enhance physicochemical properties and microscopic features of PLFH as an adequate ASC vehicle. When ASC were mixed with PLFH, in vitro assays exhibited hydrogel supporting cell migration, viability and proliferation. In vivo local subcutaneous and subgingival PLFH/ASC administration in nude mice allowed us to generate biosafety data, including biodegradability, tolerance, ASC fate and engraftment, and the absence of biodistribution and toxicity to non-target tissues. Our data strongly suggest that this novel combined ATMP for in situ administration is safe with an efficient local ASC engraftment, supporting the further development for human clinical cell therapy.
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Affiliation(s)
- Thibault Canceill
- CIRIMAT, Université Toulouse III Paul Sabatier, CNRS UMR 5085, INPT, Faculté de Pharmacie, 35 Chemin des Maraichers, CEDEX 09, 31062 Toulouse, France
- Department of Oral Medicine and Toulouse University Hospital (CHU of Toulouse)—Toulouse Institute of Oral Medicine and Science, CEDEX 09, 31062 Toulouse, France
| | - Géraldine Jourdan
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Philippe Kémoun
- Department of Oral Medicine and Toulouse University Hospital (CHU of Toulouse)—Toulouse Institute of Oral Medicine and Science, CEDEX 09, 31062 Toulouse, France
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Christophe Guissard
- Department of Oral Medicine and Toulouse University Hospital (CHU of Toulouse)—Toulouse Institute of Oral Medicine and Science, CEDEX 09, 31062 Toulouse, France
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Yanad Abou Monsef
- LabHPEC, Histology and Pathology Department, Université de Toulouse, ENVT, CEDEX 03, 31076 Toulouse, France
| | - Marion Bourdens
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Benoit Chaput
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
- Service de Chirurgie Plastique, Reconstructrice et Esthétique, Centre Hospitalier Universitaire Rangueil, Avenue du Professeur Jean Poulhès, CEDEX 09, 31059 Toulouse, France
| | - Sandrine Cavalie
- CIRIMAT, Université Toulouse III Paul Sabatier, CNRS UMR 5085, INPT, Faculté de Pharmacie, 35 Chemin des Maraichers, CEDEX 09, 31062 Toulouse, France
| | - Louis Casteilla
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Valérie Planat-Bénard
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
| | - Paul Monsarrat
- Department of Oral Medicine and Toulouse University Hospital (CHU of Toulouse)—Toulouse Institute of Oral Medicine and Science, CEDEX 09, 31062 Toulouse, France
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
- Artificial and Natural Intelligence Toulouse Institute ANITI, 31400 Toulouse, France
- Correspondence:
| | - Isabelle Raymond-Letron
- RESTORE Research Center, Université de Toulouse, INSERM, CNRS, EFS, ENVT, Batiment INCERE, 4bis Avenue Hubert Curien, 31100 Toulouse, France
- LabHPEC, Histology and Pathology Department, Université de Toulouse, ENVT, CEDEX 03, 31076 Toulouse, France
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Chen ZZ, Bowden P, Dufresne J, Miao M, Marshall JG. LEDGF is a new growth factor in fetal serum. Anal Biochem 2022; 655:114845. [PMID: 35970411 DOI: 10.1016/j.ab.2022.114845] [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: 02/26/2022] [Revised: 06/23/2022] [Accepted: 08/01/2022] [Indexed: 11/26/2022]
Abstract
Fetal serum supports the immortal growth of mammalian cell lines in culture while adult serum leads to the terminal differentiation and death of cells in culture. Many of the proteins in fetal serum that support the indefinite division and growth of cancerous cell lines remain obscure. The peptides and proteins of fetal versus adult serum were analyzed by liquid chromatography, nano electrospray ionization and tandem mass spectrometry (LC-ESI-MS/MS). Three batches of fetal serum contained the Alpha Fetoprotein marker while adult serum batches did not. Insulin (INS), and insulin-like growth factor (ILGF), fibroblast growth factor (FGF), epidermal growth factor (EGF) and platelet derived growth factor (PDGF) were increased in fetal serum. New fetal growth factors including MEGF, HDGFRP and PSIP1 and soluble growth receptors such as TNFR, EGFR, NTRK2 and THRA were discovered. Addition of insulin or the homeotic transcription factor PSIP1, also referred to as Lens Epithelium Derived Growth Factor (LEDGF), partially restored the rounded phenotype of rapidly dividing cells but was not as effective as fetal serum. Thus, a new growth factor in fetal serum, LEDGF/PSIP1, was directly observed by tandem mass spectrometry and confirmed by add back experiments to cell culture media alongside insulin.
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Affiliation(s)
- Zhuo Zhen Chen
- Research Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Toronto Metropolitan University, Canada.
| | - Peter Bowden
- Research Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Toronto Metropolitan University, Canada.
| | - Jaimie Dufresne
- Research Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Toronto Metropolitan University, Canada.
| | - Ming Miao
- Research Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Toronto Metropolitan University, Canada.
| | - John G Marshall
- Research Analytical Biochemistry Laboratory (RABL), Department of Chemistry and Biology, Toronto Metropolitan University, Canada.
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Schepici G, Gugliandolo A, Mazzon E. Serum-Free Cultures: Could They Be a Future Direction to Improve Neuronal Differentiation of Mesenchymal Stromal Cells? Int J Mol Sci 2022; 23:ijms23126391. [PMID: 35742836 PMCID: PMC9223839 DOI: 10.3390/ijms23126391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/02/2022] [Accepted: 06/06/2022] [Indexed: 02/04/2023] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) are undifferentiated cells with multilinear potential, known for their immunomodulatory and regenerative properties. Although the scientific community is working to improve their application, concerns limit their use to repair tissues following neurological damage. One of these obstacles is represented by the use of culture media supplemented with fetal bovine serum (FBS), which, due to its xenogenic nature and the risk of contamination, has increased scientific, ethical and safety problems. Therefore, the use of serum-free media could improve MSC culture methods, avoiding infectious and immunogenic transmission problems as well as MSC bioprocesses, without the use of animal components. The purpose of our review is to provide an overview of experimental studies that demonstrate that serum-free cultures, along with the supplementation of growth factors or chemicals, can lead to a more defined and controlled environment, enhancing the proliferation and neuronal differentiation of MSCs.
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Proliferation and Differentiation of Intestinal Caco-2 Cells Are Maintained in Culture with Human Platelet Lysate Instead of Fetal Calf Serum. Cells 2021; 10:cells10113038. [PMID: 34831260 PMCID: PMC8622701 DOI: 10.3390/cells10113038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/01/2021] [Accepted: 11/03/2021] [Indexed: 01/10/2023] Open
Abstract
Cell lines are widely used as in vitro model systems and substitute for animal experiments. The frequently used Caco-2 cell line is considered to reflect characteristics of differentiated intestinal epithelium. However, the need to culture the cells with fetal calf serum (FCS) induces a high variability, risk of contamination and is ethically disputed. We tested the culture of Caco-2 cells with human platelet lysate (PL) instead of FCS. We compared cell viability and differentiation by measuring ATP levels, gene and protein expression of specific markers in total cell extracts, brush border membrane vesicles (BBM) and lipid rafts (LR). Cell viability was slightly enhanced in cells grown with PL compared to FCS. The cells differentiated to an intestinal phenotype like the cells cultured in FCS, as indicated by the similar gene expression levels of hexose and protein transport proteins and the structural protein VILLIN. BBM showed a comparable distribution of the intestinal hydrolases, indicating a maintained cell membrane polarity. The distribution of the marker protein FLOTILLIN-2 in LR was also similar. We conclude that PL is an exquisite and suitable replacement for FCS in the culture of Caco-2 cells that can eliminate many disadvantages incurred due to the use of FCS.
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Subbiahanadar Chelladurai K, Selvan Christyraj JD, Rajagopalan K, Yesudhason BV, Venkatachalam S, Mohan M, Chellathurai Vasantha N, Selvan Christyraj JRS. Alternative to FBS in animal cell culture - An overview and future perspective. Heliyon 2021; 7:e07686. [PMID: 34401573 PMCID: PMC8349753 DOI: 10.1016/j.heliyon.2021.e07686] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/31/2021] [Accepted: 07/26/2021] [Indexed: 01/03/2023] Open
Abstract
Fetal bovine serum (FBS) is a widely used growth supplement in the in vitro culturing of animal and human cells, tissues and organs, notably due to the occurrence of abundant micro- and macronutrients, along with growth factors. Over the years, increasing demand, high price, batch-to-batch variability in quality and composition, increasing ethical concerns lead to the search for an alternative to FBS. Several approaches have been suggested and employed in the past, but none is implemented as widely as FBS, and each supplement has its own disadvantages. In this review, we described the importance of FBS in cell culture, discussed the issues associated with FBS use and presented the efforts made in the recent past to reduce or replace FBS. The potential of four different alternative sources to FBS, namely, bovine ocular fluid, sericin protein, human platelet lysate and earthworm heat inactivated coelomic fluid was evaluated. In the end, we present the conceptual perspective using the Human Platelet Lysate (HPL) and earthworm Heat Inactivated Coelomic Fluid (HI-CF) combination to alternate FBS and its context in scientific and economic impacts.
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Affiliation(s)
- Karthikeyan Subbiahanadar Chelladurai
- Regeneration and Stem Cell Biology Lab, Centre for Molecular and Nanomedical Sciences, International Research Centre, Sathyabama Institute of Science & Technology, Chennai, Tamilnadu, India
| | - Jackson Durairaj Selvan Christyraj
- Regeneration and Stem Cell Biology Lab, Centre for Molecular and Nanomedical Sciences, International Research Centre, Sathyabama Institute of Science & Technology, Chennai, Tamilnadu, India
| | - Kamarajan Rajagopalan
- Regeneration and Stem Cell Biology Lab, Centre for Molecular and Nanomedical Sciences, International Research Centre, Sathyabama Institute of Science & Technology, Chennai, Tamilnadu, India
| | - Beryl Vedha Yesudhason
- Regeneration and Stem Cell Biology Lab, Centre for Molecular and Nanomedical Sciences, International Research Centre, Sathyabama Institute of Science & Technology, Chennai, Tamilnadu, India
| | - Saravanakumar Venkatachalam
- Regeneration and Stem Cell Biology Lab, Centre for Molecular and Nanomedical Sciences, International Research Centre, Sathyabama Institute of Science & Technology, Chennai, Tamilnadu, India
| | - Manikandan Mohan
- Pharmaceutical & Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, USA
| | - Niranjan Chellathurai Vasantha
- Regeneration and Stem Cell Biology Lab, Centre for Molecular and Nanomedical Sciences, International Research Centre, Sathyabama Institute of Science & Technology, Chennai, Tamilnadu, India
| | - Johnson Retnaraj Samuel Selvan Christyraj
- Regeneration and Stem Cell Biology Lab, Centre for Molecular and Nanomedical Sciences, International Research Centre, Sathyabama Institute of Science & Technology, Chennai, Tamilnadu, India
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Moulavi F, Akram RT, Khorshid Sokhangouy S, Hosseini SM. Platelet rich plasma efficiently substitutes the beneficial effects of serum during in vitro oocyte maturation and helps maintain the mitochondrial activity of maturing oocytes. Growth Factors 2020; 38:152-166. [PMID: 33739231 DOI: 10.1080/08977194.2021.1900168] [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: 10/21/2022]
Abstract
Platelets contain most of the potent mitogenic factors present in serum and follicular fluid and intraovarian injection of autologous platelet rich plasma (PRP) was shown to improve ovarian function and development of preantral follicles. This study evaluated the effect of PRP on caprine oocyte maturation in vitro and subsequent fertilization and embryonic development. Cumulus oocyte complexes were cultured in a maturation medium supplemented with (1) fetal bovine serum (FBS, control), (2) PRP, extracted from healthy female goats, (3) polyvinyl alcohol (PVA), and (4) PVA plus PRP (PVA-PRP). The degree of cumulus expansion was scored, and denuded oocytes were used for assessment of nuclear maturation, mitochondrial activity, lipid content, redox status, yield and quality of in vitro embryo development, and cryosurvival of the resulting blastocysts. PRP supported the same beneficial effects of FBS on cumulus expansion, nuclear maturation, in vitro developmental competence of oocytes, and survival of vitrified-warmed blastocysts. Moreover, PRP protected oocytes from undesirable effects FBS exerted on the mitochondrial activity and intracytoplasmic lipid content of maturing oocyte. Although PVA could support the same beneficial effects of neither FBS nor PRP on oocyte maturation, its combined addition with PRP improved the yield and quality of oocyte maturation at rates closely similar to PRP. PRP efficiently substitutes beneficial effects of serum during in vitro oocyte maturation and helps maintain the mitochondrial activity of maturing oocytes.
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Affiliation(s)
- F Moulavi
- Department of Embryology, Advanced Reproductive Technologies Centre, CARTC, Dubai, United Arab Emirates
| | - R T Akram
- Department of Embryology, Advanced Reproductive Technologies Centre, CARTC, Dubai, United Arab Emirates
| | - S Khorshid Sokhangouy
- Department of Embryology, Advanced Reproductive Technologies Centre, CARTC, Dubai, United Arab Emirates
| | - S M Hosseini
- Department of Embryology, Advanced Reproductive Technologies Centre, CARTC, Dubai, United Arab Emirates
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Acebes-Huerta A, Arias-Fernández T, Bernardo Á, Muñoz-Turrillas MC, Fernández-Fuertes J, Seghatchian J, Gutiérrez L. Platelet-derived bio-products: Classification update, applications, concerns and new perspectives. Transfus Apher Sci 2019; 59:102716. [PMID: 31928859 DOI: 10.1016/j.transci.2019.102716] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Platelet derived bio-products in the form of platelet rich plasma, plasma rich in growth factors, or plasma-free platelet releasates, are being studied worldwide with the aim of proving their efficacy in tissue regeneration within many different clinical areas, such as traumatology, maxillofacial surgery, ophthalmology, dermatology and otorhinolaryngology, amongst others. The current lack of consensus in the preparation method and application form, or in the quality assessment of each bio-product, precludes adequate interpretation of the relevance of reported clinical outcomes, and, while many in clinicians are very positive about them, many are sceptic. Relevant aspects of these products are considered to propose a classification nomenclature which would aid a comprehensive comparison of clinical outcomes of bio-products of the same characteristics. Finally, the uses of platelet-derived bio-products in in vitro culture (for cell therapy purposes) as a substitute of animal-origin sera, and other future perspectives of applications of platelet-derived bio-products are discussed.
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Affiliation(s)
- Andrea Acebes-Huerta
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Tamara Arias-Fernández
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Ángel Bernardo
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain; Hospital Universitario Central de Asturias (HUCA), Laboratorio de Diagnóstico Clínico Hematología, Oviedo, Spain
| | - María Carmen Muñoz-Turrillas
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain; Centro Comunitario de Sangre y Tejidos de Asturias, Oviedo, Spain
| | - Judit Fernández-Fuertes
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain; Cabueñes Hospital Universitario (CAHU), Servicio de Cirugía Ortopédica y Traumatología (COT), Gijón, Spain
| | - Jerard Seghatchian
- International consultancy in blood components quality / safety and DDR strategies, London, UK
| | - Laura Gutiérrez
- Platelet Research Lab, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain; Dept. of Medicine, University of Oviedo, Spain.
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Hesler M, Kohl Y, Wagner S, von Briesen H. Non-pooled Human Platelet Lysate: A Potential Serum Alternative for In Vitro Cell Culture. Altern Lab Anim 2019; 47:116-127. [PMID: 31698922 DOI: 10.1177/0261192919882516] [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] [Indexed: 12/13/2022]
Abstract
Serum supplementation is crucial in in vitro cell culture to provide all the essential nutrients needed for cellular processes. Fetal bovine serum (FBS) is considered the 'gold standard', but its production raises serious ethical concerns. Human-derived alternatives to FBS exist in the form of human platelet lysates (hPLs) or human AB serum (ABS). However, these serum products are usually pooled from several donors, in order to have a standardised product without patient-specific deviations. Nevertheless, the use of patient-specific serum in cell culture might be the key to successful transplantation of the cultured cells in medical applications, particularly as it avoids the transmission of infectious components or xenogenic proteins. In addition, the production of non-pooled hPL from single donors is likely to be a cost-effective and time-saving method. The current study used hPL units isolated from single donors and tested their performance as medium supplements for cell culture in comparison with FBS or ABS. This proof-of-concept study aimed to assess the potential of non-pooled hPL for personalised serum supplementation, and thus optimise in vitro models by making them more relevant to human physiology. We showed that A549, HepG2 and Caco-2 human cell lines were generally able to adapt to the new culture conditions and maintain viability, morphology and certain cell-specific characteristics. These results indicate that non-pooled, single patient-derived hPL could be a suitable alternative for in vitro serum supplementation.
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Affiliation(s)
- Michelle Hesler
- Department of Bioprocessing & Bioanalytics, Fraunhofer Institute for Biomedical Engineering, Sulzbach/Saar, Germany
| | - Yvonne Kohl
- Department of Bioprocessing & Bioanalytics, Fraunhofer Institute for Biomedical Engineering, Sulzbach/Saar, Germany
| | - Sylvia Wagner
- Department of Bioprocessing & Bioanalytics, Fraunhofer Institute for Biomedical Engineering, Sulzbach/Saar, Germany
| | - Hagen von Briesen
- Department of Bioprocessing & Bioanalytics, Fraunhofer Institute for Biomedical Engineering, Sulzbach/Saar, Germany
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Evaluation of platelet lysate as a substitute for FBS in explant and enzymatic isolation methods of human umbilical cord MSCs. Sci Rep 2018; 8:12439. [PMID: 30127445 PMCID: PMC6102222 DOI: 10.1038/s41598-018-30772-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/24/2018] [Indexed: 12/16/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have immense potential for cell-based therapy of acute and chronic pathological conditions. MSC transplantation for cell-based therapy requires a substantial number of cells in the range of 0.5–2.5 × 106 cells/kg body weight of an individual. A prolific source of MSCs followed by in vitro propagation is therefore an absolute prerequisite for clinical applications. Umbilical cord tissue (UCT) is an abundantly available prolific source of MSC that are fetal in nature and have higher potential for ex-vivo expansion. However, the ex-vivo expansion of MSCs using a xenogeneic supplement such as fetal bovine serum (FBS) carries the risk of transmission of zoonotic infections and immunological reactions. We used platelet lysate (PL) as a xeno-free, allogeneic replacement for FBS and compared the biological and functional characteristics of MSC processed and expanded with PL and FBS by explant and enzymatic method. UCT-MSCs expanded using PL displayed typical immunophenotype, plasticity, immunomodulatory property and chromosomal stability. PL supplementation also showed 2-fold increase in MSC yield from explant culture with improved immunomodulatory activity as compared to enzymatically dissociated cultures. In conclusion, PL from expired platelets is a viable alternative to FBS for generating clinically relevant numbers of MSC from explant cultures over enzymatic method.
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11
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Horváthy DB, Simon M, Schwarz CM, Masteling M, Vácz G, Hornyák I, Lacza Z. Serum albumin as a local therapeutic agent in cell therapy and tissue engineering. Biofactors 2017; 43:315-330. [PMID: 27859738 DOI: 10.1002/biof.1337] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/05/2016] [Accepted: 10/03/2016] [Indexed: 12/15/2022]
Abstract
Albumin is a major plasma protein that has become ubiquitous in regenerative medicine research. As such, many studies have examined its structure and advantageous properties. However, a systematic and comprehensive understanding of albumin's role, capabilities and therapeutic potential still eludes the field. In the present work, we review how albumin is applied in tissue engineering, including cell culture and storage, in vitro fertilization and transplantation. Furthermore, we discuss how albumin's physiological role extends beyond a carrier for metal ions, fatty acids, pharmacons and growth factors. Albumin acts as a bacteriostatic coating that simultaneously promotes attachment and proliferation of eukaryotic cells. These properties with the combination of free radical scavenging, neutrophil activation and as a buffer molecule already make the albumin protein beneficial in healing processes supporting functional tissue remodeling. Nevertheless, recent data revealed that albumin can be synthesized by osteoblasts and its local concentration is raised after bone trauma. Interestingly, by increasing the local albumin concentration in vivo, faster bone healing is achieved, possibly because albumin recruits endogenous stem cells and promotes the growth of new bone. These data also suggest an active role of albumin, even though a specific receptor has not yet been identified. Together, this discussion sheds light on why the extravascular use of the albumin molecule is in the scope of scientific investigations and why it should be considered as a local therapeutic agent in regenerative medicine. © 2016 BioFactors, 43(3):315-330, 2017.
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Affiliation(s)
- Dénes B Horváthy
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Melinda Simon
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Charlotte M Schwarz
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Mariana Masteling
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Gabriella Vácz
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - István Hornyák
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Zsombor Lacza
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
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12
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Pazoki H, Eimani H, Farokhi F, Shahverdi A, Salman Yazdi R, Tahaei LS. Comparing the growth and the development of mouse pre-antral follicle in medium with PL (Platelet Layset) and with FBS. MIDDLE EAST FERTILITY SOCIETY JOURNAL 2015. [DOI: 10.1016/j.mefs.2015.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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13
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Culture of human cell lines by a pathogen-inactivated human platelet lysate. Cytotechnology 2015; 68:1185-95. [PMID: 25944665 DOI: 10.1007/s10616-015-9878-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 04/11/2015] [Indexed: 12/18/2022] Open
Abstract
Alternatives to the use of fetal bovine serum (FBS) have been investigated to ensure xeno-free growth condition. In this study we evaluated the efficacy of human platelet lysate (PL) as a substitute of FBS for the in vitro culture of some human cell lines. PL was obtained by pools of pathogen inactivated human donor platelet (PLT) concentrates. Human leukemia cell lines (KG-1, K562, JURKAT, HL-60) and epithelial tumor cell lines (HeLa and MCF-7) were cultured with either FBS or PL. Changes in cell proliferation, viability, morphology, surface markers and cell cycle were evaluated for each cell line. Functional characteristics were analysed by drug sensitivity test and cytotoxicity assay. Our results demonstrated that PL can support growth and expansion of all cell lines, although the cells cultured in presence of PL experienced a less massive proliferation compared to those grown with FBS. We found a comparable percentage of viable specific marker-expressing cells in both conditions, confirming lineage fidelity in all cultures. Functionality assays showed that cells in both FBS- and PL-supported cultures maintained their normal responsiveness to adriamycin and NK cell-mediated lysis. Our findings indicate that PL is a feasible serum substitute for supporting growth and propagation of haematopoietic and epithelial cell lines with many advantages from a perspective of process standardization, ethicality and product safety.
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Hemeda H, Giebel B, Wagner W. Evaluation of human platelet lysate versus fetal bovine serum for culture of mesenchymal stromal cells. Cytotherapy 2014; 16:170-80. [PMID: 24438898 DOI: 10.1016/j.jcyt.2013.11.004] [Citation(s) in RCA: 188] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 11/05/2013] [Accepted: 11/07/2013] [Indexed: 12/11/2022]
Abstract
Culture media for therapeutic cell preparations-such as mesenchymal stromal cells (MSCs)-usually comprise serum additives. Traditionally, fetal bovine serum is supplemented in basic research and in most clinical trials. Within the past years, many laboratories adapted their culture conditions to human platelet lysate (hPL), which further stimulates proliferation and expansion of MSCs. Particularly with regard to clinical application, human alternatives for fetal bovine serum are clearly to be preferred. hPL is generated from human platelet units by disruption of the platelet membrane, which is commonly performed by repeated freeze and thaw cycles. Such culture supplements are notoriously ill-defined, and many parameters contribute to batch-to-batch variation in hPL such as different amounts of plasma, a broad range of growth factors and donor-specific effects. The plasma components of hPL necessitate addition of anticoagulants such as heparins to prevent gelatinization of hPL medium, and their concentration must be standardized. Labels for description of hPL-such as "xenogen-free," "animal-free" and "serum free"-are not used consistently in the literature and may be misleading if not critically assessed. Further analysis of the precise composition of relevant growth factors, attachment factors, microRNAs and exosomes will pave the way for optimized and defined culture conditions. The use of hPL has several advantages and disadvantages: they must be taken into account because the choice of cell culture additive has major impact on cell preparations.
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Affiliation(s)
- Hatim Hemeda
- Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany
| | - Bernd Giebel
- Institute for Transfusion Medicine, University Hospital Essen, Essen, Germany
| | - Wolfgang Wagner
- Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany.
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15
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Abstract
Adipose-derived stem cells (ASCs) are considered a great alternative source of mesenchymal stem cells (MSCs). Unlike bone marrow stem cells (BMSCs), ASCs can be retrieved in high numbers from lipoaspirate, a by-product of liposuction procedures. Given that ASCs represent an easily accessible and abundant source of multipotent cells, ASCs have garnered attention and curiosity from both scientific and clinical communities for their potential in clinical applications. Furthermore, their unique immunobiology and secretome are attractive therapeutic properties. A decade since the discovery of a stem cell reservoir residing within adipose tissue, ASC-based clinical trials have grown over the years around the world along with assessments made on their safety and efficacy. With the progress of ASCs into clinical applications, the aim towards producing clinical-grade ASCs becomes increasingly important. Several countries have recognised the growing industry of cell therapies and have developed regulatory frameworks to assure their safety. With more research efforts made to understand their effects in both scientific and clinical settings, ASCs hold great promise as a future therapeutic strategy in treating a wide variety of diseases. Therefore, this review seeks to highlight the clinical applicability of ASCs as well as their progress in clinical trials across various medical disciplines.
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16
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Wu CY, Young L, Young D, Martel J, Young JD. Bions: a family of biomimetic mineralo-organic complexes derived from biological fluids. PLoS One 2013; 8:e75501. [PMID: 24086546 PMCID: PMC3783384 DOI: 10.1371/journal.pone.0075501] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 08/14/2013] [Indexed: 12/17/2022] Open
Abstract
Mineralo-organic nanoparticles form spontaneously in human body fluids when the concentrations of calcium and phosphate ions exceed saturation. We have shown previously that these mineralo-organic nanoparticles possess biomimetic properties and can reproduce the whole phenomenology of the so-called nanobacteria-mineralized entities initially described as the smallest microorganisms on earth. Here, we examine the possibility that various charged elements and ions may form mineral nanoparticles with similar properties in biological fluids. Remarkably, all the elements tested, including sodium, magnesium, aluminum, calcium, manganese, iron, cobalt, nickel, copper, zinc, strontium, and barium form mineralo-organic particles with bacteria-like morphologies and other complex shapes following precipitation with phosphate in body fluids. Upon formation, these mineralo-organic particles, which we term bions, invariably accumulate carbonate apatite during incubation in biological fluids; yet, the particles also incorporate additional elements and thus reflect the ionic milieu in which they form. Bions initially harbor an amorphous mineral phase that gradually converts to crystals in culture. Our results show that serum produces a dual inhibition-seeding effect on bion formation. Using a comprehensive proteomic analysis, we identify a wide range of proteins that bind to these mineral particles during incubation in medium containing serum. The two main binding proteins identified, albumin and fetuin-A, act as both inhibitors and seeders of bions in culture. Notably, bions possess several biomimetic properties, including the possibility to increase in size and number and to be sub-cultured in fresh culture medium. Based on these results, we propose that bions represent biological, mineralo-organic particles that may form in the body under both physiological and pathological homeostasis conditions. These mineralo-organic particles may be part of a physiological cycle that regulates the function, transport and disposal of elements and minerals in the human body.
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Affiliation(s)
- Cheng-Yeu Wu
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
- Center for Molecular and Clinical Immunology, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
- Research Center of Bacterial Pathogenesis, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
| | - Lena Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America
| | - David Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Jan Martel
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
- Center for Molecular and Clinical Immunology, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
| | - John D. Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
- Center for Molecular and Clinical Immunology, Chang Gung University, Gueishan, Taoyuan, Taiwan, Republic of China
- Laboratory of Cellular Physiology and Immunology, Rockefeller University, New York, New York, United States of America
- Biochemical Engineering Research Center, Ming Chi University of Technology, Taishan, Taipei, Taiwan, Republic of China
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17
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Anitua E, Prado R, Sánchez M, Orive G. Platelet-Rich Plasma: Preparation and Formulation. ACTA ACUST UNITED AC 2012. [DOI: 10.1053/j.oto.2012.01.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Lindroos B, Suuronen R, Miettinen S. The potential of adipose stem cells in regenerative medicine. Stem Cell Rev Rep 2011; 7:269-91. [PMID: 20853072 DOI: 10.1007/s12015-010-9193-7] [Citation(s) in RCA: 302] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Adipose stem cells (ASCs) are an attractive and abundant stem cell source with therapeutic applicability in diverse fields for the repair and regeneration of acute and chronically damaged tissues. Importantly, unlike the human bone marrow stromal/stem stem cells (BMSCs) that are present at low frequency in the bone marrow, ASCs can be retrieved in high number from either liposuction aspirates or subcutaneous adipose tissue fragments and can easily be expanded in vitro. ASCs display properties similar to that observed in BMSCs and, upon induction, undergo at least osteogenic, chondrogenic, adipogenic and neurogenic, differentiation in vitro. Furthermore, ASCs have been shown to be immunoprivileged, prevent severe graft-versus-host disease in vitro and in vivo and to be genetically stable in long-term culture. They have also proven applicability in other functions, such as providing hematopoietic support and gene transfer. Due to these characteristics, ASCs have rapidly advanced into clinical trials for treatment of a broad range of conditions. As cell therapies are becoming more frequent, clinical laboratories following good manufacturing practices are needed. At the same time as laboratory processes become more extensive, the need for control in the processing laboratory grows consequently involving a greater risk of complications and possibly adverse events for the recipient. Therefore, the safety, reproducibility and quality of the stem cells must thoroughly be examined prior to extensive use in clinical applications. In this review, some of the aspects of examination on ASCs in vitro and the utilization of ASCs in clinical studies are discussed.
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Affiliation(s)
- Bettina Lindroos
- Regea-Institute for Regenerative Medicine, University of Tampere and Tampere University Hospital, Tampere, Finland.
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19
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Krämer DK, Bouzakri K, Holmqvist O, Al-Khalili L, Krook A. Effect of serum replacement with plysate on cell growth and metabolismin primary cultures of human skeletal muscle. Cytotechnology 2011; 48:89-95. [PMID: 19003035 DOI: 10.1007/s10616-005-4074-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2005] [Accepted: 10/13/2005] [Indexed: 12/25/2022] Open
Abstract
Cell- and tissue culture methodology form an important base for biological, biochemical and biomedical research. Most cell culture techniques require the use of animal sera for the successful propagation of cells. However, the varying composition between batches has fuelled the need for alternatives. In the case of serum derived from animal foetuses, ethical concerns have also been raised. Here we compare the use of a platelet derived lysate (Plysate), which is currently under development as a serum substitute, in the culturing of primary human muscle cells to foetal bovine serum (FBS). In cells cultured with Plysate, differentiation into myotubes, glucose-uptake, phosphatidylinositol 3-kinase (PI3K) activity and expression and phosphorylation of ERK1/2 MAPK and PKB/Akt was impaired. Thus for primary human skeletal muscle Plysate is a sub-optimal substitute for FBS.
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Affiliation(s)
- David K Krämer
- Department of Surgical Science, Karolinska Institutet, S-171 77, Stockholm, Sweden
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20
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Tekkatte C, Gunasingh GP, Cherian KM, Sankaranarayanan K. "Humanized" stem cell culture techniques: the animal serum controversy. Stem Cells Int 2011; 2011:504723. [PMID: 21603148 PMCID: PMC3096451 DOI: 10.4061/2011/504723] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Revised: 01/18/2011] [Accepted: 02/05/2011] [Indexed: 12/15/2022] Open
Abstract
Cellular therapy is reaching a pinnacle with an understanding of the potential of human mesenchymal stem cells (hMSCs) to regenerate damaged tissue in the body. The limited numbers of these hMSCs in currently identified sources, like bone marrow, adipose tissue, and so forth, bring forth the need for their
in vitro culture/expansion. However, the extensive usage of supplements containing xenogeneic components in the expansion-media might pose a risk to the post-transplantation safety of patients. This warrants the necessity to identify and develop chemically defined or “humanized” supplements which would make
in vitro cultured/processed cells relatively safer for transplantation in regenerative medicine. In this paper, we outline the various caveats associated with conventionally used supplements of xenogenic origin and also portray the possible alternatives/additives which could one day herald the dawn of a new era in the translation of
in vitro cultured cells to therapeutic interventions.
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Affiliation(s)
- Chandana Tekkatte
- Frontier Lifeline Pvt. Ltd., TICEL Biopark, Taramani, Chennai 600113, India
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21
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Critical evaluation of gamma-irradiated serum used as feeder in the culture and demonstration of putative nanobacteria and calcifying nanoparticles. PLoS One 2010; 5:e10343. [PMID: 20436679 PMCID: PMC2859944 DOI: 10.1371/journal.pone.0010343] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Accepted: 03/27/2010] [Indexed: 12/23/2022] Open
Abstract
The culture and demonstration of putative nanobacteria (NB) and calcifying nanoparticles (CNP) from human and animal tissues has relied primarily on the use of a culture supplement consisting of FBS that had been γ-irradiated at a dose of 30 kGy (γ-FBS). The use of γ-FBS is based on the assumption that this sterilized fluid has been rid entirely of any residual NB/CNP, while it continues to promote the slow growth in culture of NB/CNP from human/animal tissues. We show here that γ-irradiation (5–50 kGy) produces extensive dose-dependent serum protein breakdown as demonstrated through UV and visible light spectrophotometry, fluorometry, Fourier-transformed infrared spectroscopy, and gel electrophoresis. Yet, both γ-FBS and γ-irradiated human serum (γ-HS) produce NB/CNP in cell culture conditions that are morphologically and chemically indistinguishable from their normal serum counterparts. Contrary to earlier claims, γ-FBS does not enhance the formation of NB/CNP from several human body fluids (saliva, urine, ascites, and synovial fluid) tested. In the presence of additional precipitating ions, both γ-irradiated serum (FBS and HS) and γ-irradiated proteins (albumin and fetuin-A) retain the inherent dual NB inhibitory and seeding capabilities seen also with their untreated counterparts. By gel electrophoresis, the particles formed from both γ-FBS and γ-HS are seen to have assimilated into their scaffold the same smeared protein profiles found in the γ-irradiated sera. However, their protein compositions as identified by proteomics are virtually identical to those seen with particles formed from untreated serum. Moreover, particles derived from human fluids and cultured in the presence of γ-FBS contain proteins derived from both γ-FBS and the human fluid under investigation—a confusing and unprecedented scenario indicating that these particles harbor proteins from both the host tissue and the FBS used as feeder. Thus, the NB/CNP described in the literature clearly bear hybrid protein compositions belonging to different species. We conclude that there is no basis to justify the use of γ-FBS as a feeder for the growth and demonstration of NB/CNP or any NB-like particles in culture. Moreover, our results call into question the validity of the entire body of literature accumulated to date on NB and CNP.
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22
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Wolbank S, van Griensven M, Grillari-Voglauer R, Peterbauer-Scherb A. Alternative sources of adult stem cells: human amniotic membrane. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2010; 123:1-27. [PMID: 20237903 DOI: 10.1007/10_2010_71] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Human amniotic membrane is a highly promising cell source for tissue engineering. The cells thereof, human amniotic epithelial cells (hAEC) and human amniotic mesenchymal stromal cells (hAMSC), may be immunoprivileged, they represent an early developmental status, and their application is ethically uncontroversial. Cell banking strategies may use freshly isolated cells or involve in vitro expansion to increase cell numbers. Therefore, we have thoroughly characterized the effect of in vitro cultivation on both phenotype and differentiation potential of hAEC. Moreover, we present different strategies to improve expansion including replacement of animal-derived supplements by human platelet products or the introduction of the catalytic subunit of human telomerase to extend the in vitro lifespan of amniotic cells. Characterization of the resulting cultures includes phenotype, growth characteristics, and differentiation potential, as well as immunogenic and immunomodulatory properties.
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Affiliation(s)
- Susanne Wolbank
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstraße 13, 1200 Vienna, Austria
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23
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Wu CY, Martel J, Young D, Young JD. Fetuin-A/albumin-mineral complexes resembling serum calcium granules and putative nanobacteria: demonstration of a dual inhibition-seeding concept. PLoS One 2009; 4:e8058. [PMID: 19956594 PMCID: PMC2779105 DOI: 10.1371/journal.pone.0008058] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Accepted: 11/04/2009] [Indexed: 12/02/2022] Open
Abstract
Serum-derived granulations and purported nanobacteria (NB) are pleomorphic apatite structures shown to resemble calcium granules widely distributed in nature. They appear to be assembled through a dual inhibitory-seeding mechanism involving proteinaceous factors, as determined by protease (trypsin and chymotrypsin) and heat inactivation studies. When inoculated into cell culture medium, the purified proteins fetuin-A and albumin fail to induce mineralization, but they will readily combine with exogenously added calcium and phosphate, even in submillimolar amounts, to form complexes that will undergo morphological transitions from nanoparticles to spindles, films, and aggregates. As a mineralization inhibitor, fetuin-A is much more potent than albumin, and it will only seed particles at higher mineral-to-protein concentrations. Both proteins display a bell-shaped, dose-dependent relationship, indicative of the same dual inhibitory-seeding mechanism seen with whole serum. As ascertained by both seeding experiments and gel electrophoresis, fetuin-A is not only more dominant but it appears to compete avidly for nanoparticle binding at the expense of albumin. The nanoparticles formed in the presence of fetuin-A are smaller than their albumin counterparts, and they have a greater tendency to display a multi-layered ring morphology. In comparison, the particles seeded by albumin appear mostly incomplete, with single walls. Chemically, spectroscopically, and morphologically, the protein-mineral particles resemble closely serum granules and NB. These particles are thus seen to undergo an amorphous to crystalline transformation, the kinetics and completeness of which depend on the protein-to-mineral ratios, with low ratios favoring faster conversion to crystals. Our results point to a dual inhibitory-seeding, de-repression model for the assembly of particles in supersaturated solutions like serum. The presence of proteins and other inhibitory factors tend to block apatite nuclei formation or to stabilize the nascent nuclei as amorphous or semi-crystalline spherical nanoparticles, until the same inhibitory influences are overwhelmed or de-repressed, whereby the apatite nuclei grow in size to coalesce into crystalline spindles and films-a mechanism that may explain not only the formation of calcium granules in nature but also normal or ectopic calcification in the body.
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Affiliation(s)
- Cheng-Yeu Wu
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Research Center of Bacterial Pathogenesis, Chang Gung University, Gueishan, Taiwan, Republic of China
| | - Jan Martel
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Department of Biochemistry and Molecular Biology, Graduate Institute of Biomedical Sciences, Chang Gung University, Gueishan, Taiwan, Republic of China
| | - David Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - John D. Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Laboratory of Cellular Physiology and Immunology, The Rockefeller University, New York, New York, United States of America
- Biochemical Engineering Research Center, Mingchi University of Technology, Taipei, Taiwan, Republic of China
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24
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Young JD, Martel J, Young D, Young A, Hung CM, Young L, Chao YJ, Young J, Wu CY. Characterization of granulations of calcium and apatite in serum as pleomorphic mineralo-protein complexes and as precursors of putative nanobacteria. PLoS One 2009; 4:e5421. [PMID: 19412552 PMCID: PMC2673041 DOI: 10.1371/journal.pone.0005421] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Accepted: 04/07/2009] [Indexed: 11/18/2022] Open
Abstract
Calcium and apatite granulations are demonstrated here to form in both human and fetal bovine serum in response to the simple addition of either calcium or phosphate, or a combination of both. These granulations are shown to represent precipitating complexes of protein and hydroxyapatite (HAP) that display marked pleomorphism, appearing as round, laminated particles, spindles, and films. These same complexes can be found in normal untreated serum, albeit at much lower amounts, and appear to result from the progressive binding of serum proteins with apatite until reaching saturation, upon which the mineralo-protein complexes precipitate. Chemically and morphologically, these complexes are virtually identical to the so-called nanobacteria (NB) implicated in numerous diseases and considered unusual for their small size, pleomorphism, and the presence of HAP. Like NB, serum granulations can seed particles upon transfer to serum-free medium, and their main protein constituents include albumin, complement components 3 and 4A, fetuin-A, and apolipoproteins A1 and B100, as well as other calcium and apatite binding proteins found in the serum. However, these serum mineralo-protein complexes are formed from the direct chemical binding of inorganic and organic phases, bypassing the need for any biological processes, including the long cultivation in cell culture conditions deemed necessary for the demonstration of NB. Thus, these serum granulations may result from physiologically inherent processes that become amplified with calcium phosphate loading or when subjected to culturing in medium. They may be viewed as simple mineralo-protein complexes formed from the deployment of calcification-inhibitory pathways used by the body to cope with excess calcium phosphate so as to prevent unwarranted calcification. Rather than representing novel pathophysiological mechanisms or exotic lifeforms, these results indicate that the entities described earlier as NB most likely originate from calcium and apatite binding factors in the serum, presumably calcification inhibitors, that upon saturation, form seeds for HAP deposition and growth. These calcium granulations are similar to those found in organisms throughout nature and may represent the products of more general calcium regulation pathways involved in the control of calcium storage, retrieval, tissue deposition, and disposal.
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Affiliation(s)
- John D Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China.
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25
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Su CY, Kuo YP, Lin YC, Huang CT, Tseng YH, Burnouf T. A virally inactivated functional growth factor preparation from human platelet concentrates. Vox Sang 2009; 97:119-28. [PMID: 19320900 DOI: 10.1111/j.1423-0410.2009.01180.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND Human platelet growth factors (HPGF) are essential for tissue regeneration and may replace fetal bovine serum (FBS) in cell therapy. No method for the manufacture of standardized virally inactivated HPGF has been developed yet. STUDY DESIGN AND METHODS Platelet concentrates (PC) were subjected to solvent/detergent (S/D) treatment (1% TnBP/1% Triton X-45), oil extraction, hydrophobic interaction chromatography and sterile filtration. Platelet-derived growth factor (PDGF)-AB, -BB and -AA, transforming growth factor-beta1 (TGF-beta1), epidermal growth factor (EGF), insulin-like growth factor-1 (IGF-1) and vascular endothelium growth factor (VEGF) were measured by ELISA. Composition in proteins and lipids was determined, protein profiles were obtained by SDS-PAGE, and TnBP and Triton X-45 were assessed by gas chromatography and high-performance liquid chromatography, respectively. Cell growth promoting activity of HPGF was evaluated by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay using human embryonic kidney (HEK293A) fibroblast and Statens Seruminstitute rabbit corneal (SIRC) epithelial cell lines. RESULTS The GF preparation contained a mean of 16.66, 2.04, 1.53, 72.19, 0.33, 48.59 and 0.44 ng/ml of PDGF-AB, -BB, -AA, TGF-beta1, EGF, IGF-1 and VEGF, respectively. The protein profile was typical of platelet releasates and had less than 2 p.p.m. of residual S/D agents. MTS assay of HEK293A and SIRC cultures showed that the GF preparation at 10% and 0.1% (v/v), respectively, could successfully replace 10% FBS for cell proliferation. Cell-stimulating activity of HPGF on HEK293A was over twice that of PC releasates. CONCLUSION STANDARDIZED and functional virally inactivated HPGF can be prepared from human PC for possible applications in cell therapy and regenerative medicine.
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Affiliation(s)
- C-Y Su
- Department of Dentistry, National Yang-Ming University, Taipei, Taiwan
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26
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Young JD, Martel J, Young L, Wu CY, Young A, Young D. Putative nanobacteria represent physiological remnants and culture by-products of normal calcium homeostasis. PLoS One 2009; 4:e4417. [PMID: 19198665 PMCID: PMC2636888 DOI: 10.1371/journal.pone.0004417] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Accepted: 01/07/2009] [Indexed: 12/05/2022] Open
Abstract
Putative living entities called nanobacteria (NB) are unusual for their small sizes (50-500 nm), pleomorphic nature, and accumulation of hydroxyapatite (HAP), and have been implicated in numerous diseases involving extraskeletal calcification. By adding precipitating ions to cell culture medium containing serum, mineral nanoparticles are generated that are morphologically and chemically identical to the so-called NB. These nanoparticles are shown here to be formed of amorphous mineral complexes containing calcium as well as other ions like carbonate, which then rapidly acquire phosphate, forming HAP. The main constituent proteins of serum-derived NB are albumin, fetuin-A, and apolipoprotein A1, but their involvement appears circumstantial since so-called NB from different body fluids harbor other proteins. Accordingly, by passage through various culture media, the protein composition of these particles can be modulated. Immunoblotting experiments reveal that antibodies deemed specific for NB react in fact with either albumin, fetuin-A, or both, indicating that previous studies using these reagents may have detected these serum proteins from the same as well as different species, with human tissue nanoparticles presumably absorbing bovine serum antigens from the culture medium. Both fetal bovine serum and human serum, used earlier by other investigators as sources of NB, paradoxically inhibit the formation of these entities, and this inhibition is trypsin-sensitive, indicating a role for proteins in this inhibitory process. Fetuin-A, and to a lesser degree albumin, inhibit nanoparticle formation, an inhibition that is overcome with time, ending with formation of the so-called NB. Together, these data demonstrate that NB are most likely formed by calcium or apatite crystallization inhibitors that are somehow overwhelmed by excess calcium or calcium phosphate found in culture medium or in body fluids, thereby becoming seeds for calcification. The structures described earlier as NB may thus represent remnants and by-products of physiological mechanisms used for calcium homeostasis, a concept which explains the vast body of NB literature as well as explains the true origin of NB as lifeless protein-mineralo entities with questionable role in pathogenesis.
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Affiliation(s)
- John D Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China.
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Chabanon G, Alves da Costa L, Farges B, Harscoat C, Chenu S, Goergen JL, Marc A, Marc I, Chevalot I. Influence of the rapeseed protein hydrolysis process on CHO cell growth. BIORESOURCE TECHNOLOGY 2008; 99:7143-7151. [PMID: 18296044 DOI: 10.1016/j.biortech.2007.12.070] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2007] [Revised: 12/20/2007] [Accepted: 12/21/2007] [Indexed: 05/25/2023]
Abstract
Different protein hydrolysates were prepared from enzymatic hydrolyses of a rapeseed isolate (>90% protein content) using different commercial enzymes of non-animal origin. The extent of hydrolysis was controlled to produce hydrolysates corresponding to various degrees of hydrolysis (DH) from 5 to 30. These hydrolysates were characterized according to their solubility and size peptide pattern. Different growth behaviours of Chinese Hamster Ovary cells were observed when these various hydrolysates were added in serum-free medium containing transferrin, albumin and insulin. Hydrolysates from low degree of hydrolysis generally did not exhibit significant positive effect on cell growth; conversely hydrolysates from extensive hydrolysis, corresponding to a major low molecular size peptides content, usually allowed an increase of the maximal cell density. However, depending on the enzyme used, the supplementation with hydrolysates corresponding to a high degree of hydrolysis and composed of at least 70% peptides with a molecular size under 1kDa, led to different maximal cell density values, indicating the importance of enzyme specificity and consequently the nature of the released peptides. This result showed that the positive influence of the rapeseed hydrolysates on cell growth was not only due to a nutritional support tied to the addition of small peptides but may be related to the presence of peptides exhibiting growth or survival factor effects. Furthermore, total substitution of proteins (transferrin, albumin and insulin) in the cell culture medium by some rapeseed hydrolysates appeared to be a promising alternative to improve the cell growth in protein-free media.
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Affiliation(s)
- G Chabanon
- Laboratoire des Sciences du Génie Chimique, UPR CNRS 6811, ENSAIA-INPL, Nancy-Université, 2 avenue de la forêt de Haye, 54505 Vandoeuvre-lès-Nancy, France
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Kazemnejad S, Allameh A, Gharehbaghian A, Soleimani M, Amirizadeh N, Jazayeri M. Efficient replacing of fetal bovine serum with human platelet releasate during propagation and differentiation of human bone marrow-derived mesenchymal stem cells to functional hepatocytes-like cells. Vox Sang 2008; 95:149-58. [DOI: 10.1111/j.1423-0410.2008.01075.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Porcine platelet lysate as a supplement for animal cell culture. Cytotechnology 2007; 55:3-8. [PMID: 19002989 DOI: 10.1007/s10616-007-9097-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2007] [Accepted: 09/19/2007] [Indexed: 12/19/2022] Open
Abstract
A novel supplementation of cell growth media based on a porcine platelet lysate was developed for culture of animal-derived cells. The platelet lysate was produced from porcine blood and contained lysate of platelets and plasma components. It showed satisfactory microbiological integrity and it carried only low amount of endotoxins (<10 EU/mL). The porcine platelet lysate supported well proliferation of Vero (African green monkey transformed kidney epithelial cells), Chinese hamster ovary (CHO) and hybridoma cells comparable to fetal bovine serum (FBS). Platelet lysate shows promise as a viable choice over FBS as it can be produced in large quantities, high lot-to-lot consistency and with an attractive price structure. Furthermore it is a strong alternative to FBS for ethical reasons. It is expected that it can be used as a general supplementation for most animal cells for research studies on the proliferation of cells and their expression of products.
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