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Liu X, Gao S, Ren L, Yuan X. Achieving high intracellular trehalose in hRBCs by reversible membrane perturbation of maltopyranosides with synergistic membrane protection of macromolecular protectants. BIOMATERIALS ADVANCES 2022; 141:213114. [PMID: 36113360 DOI: 10.1016/j.bioadv.2022.213114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/20/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
Trehalose is considered as a biocompatible cryoprotectant for solvent-free cryopreservation of cells, but the difficulty of the current trehalose delivery platforms to human red blood cells (hRBCs) limits its wide applications. Due to cell injuries caused by incubation at 37 °C and low intracellular loading efficiency, development of novel methods to facilitate trehalose entry in hRBCs is essential. Herein, a reversible membrane perturbation and synergistic membrane stabilization system based on maltopyranosides and macromolecular protectants was constructed, demonstrating the ability of efficient trehalose loading in hRBCs at 4 °C. Results of confocal laser scanning microscopy exhibited that the intracellular loading with the assistance of maltopyranosides was a reversible process, while the membrane protective effect of macromolecular protectants on trehalose loading in hRBCs was necessary. It was suggested that introduction of 30 mM poly(vinyl pyrrolidone) 8000 combined with 1 mM dodecyl-β-D-maltopyranoside and 0.8 M trehalose could increase the intracellular trehalose to 84.0 ± 11.3 mM in hRBCs, whereas poly(ethylene glycol), dextran, human serum albumin or hydroxyethyl starch had a weak effect. All the macromolecular protectants could promote the cryosurvival of hRBCs, exhibiting membrane stabilization, and incubation and followed by cryopreservation did not change the basic functions and normal morphology of hRBCs substantially. This study provided an alternative strategy for glycerol-free cryopreservation of cells and the delivery of membrane-impermeable cargos.
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Affiliation(s)
- Xingwen Liu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
| | - Shuhui Gao
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
| | - Lixia Ren
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China
| | - Xiaoyan Yuan
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300350, China.
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Lin Q, Le QA, Takebayashi K, Hirata M, Tanihara F, Thongkittidilok C, Sawamoto O, Kikuchi T, Otoi T. Viability and developmental potential of porcine blastocysts preserved for short term in a chemically defined medium at ambient temperature. Reprod Domest Anim 2022; 57:556-563. [DOI: 10.1111/rda.14095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Qingyi Lin
- Bio‐Innovation Research Center Tokushima University Tokushima Japan
- Faculty of Bioscience and Bioindustry Tokushima University Tokushima Japan
| | - Quynh Anh Le
- Bio‐Innovation Research Center Tokushima University Tokushima Japan
- Faculty of Bioscience and Bioindustry Tokushima University Tokushima Japan
| | - Koki Takebayashi
- Bio‐Innovation Research Center Tokushima University Tokushima Japan
- Faculty of Bioscience and Bioindustry Tokushima University Tokushima Japan
| | - Maki Hirata
- Bio‐Innovation Research Center Tokushima University Tokushima Japan
- Faculty of Bioscience and Bioindustry Tokushima University Tokushima Japan
| | - Fuminori Tanihara
- Faculty of Bioscience and Bioindustry Tokushima University Tokushima Japan
| | - Chommanart Thongkittidilok
- Bio‐Innovation Research Center Tokushima University Tokushima Japan
- Faculty of Bioscience and Bioindustry Tokushima University Tokushima Japan
| | - Osamu Sawamoto
- Research and Development Center Otsuka Pharmaceutical Factory, Inc Naruto Tokushima Japan
| | - Takeshi Kikuchi
- Research and Development Center Otsuka Pharmaceutical Factory, Inc Naruto Tokushima Japan
| | - Takeshige Otoi
- Bio‐Innovation Research Center Tokushima University Tokushima Japan
- Faculty of Bioscience and Bioindustry Tokushima University Tokushima Japan
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3
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Hydroxyethyl starch is an alternative washing solution for peripheral bloodstem cells products. Transfus Apher Sci 2020; 60:102915. [PMID: 32919883 DOI: 10.1016/j.transci.2020.102915] [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: 05/24/2020] [Revised: 08/19/2020] [Accepted: 08/19/2020] [Indexed: 11/22/2022]
Abstract
Cryopreservation of hematopoietic stem cells (HSC) involves slow rate cooling in the presence of a cryoprotectant (DMSO) to avoid the damaging effects of intracellular ice formation. The infusion of DMSO with the thawed product has been related to adverse events. Reduction of DMSO content by washing the HSCs after thawing has been suggested as a method to avoid infusion-related side-effects. Albumin-dextran washing methods have proved useful in thawing HSC products. Dextran40 shortages prompted us to search for suitable alternatives. We report the results of a comparative study of the use of hydroxyethyl starch (HES) as an alternative to dextran40 for washing thawed HSCs products. A total of 10 HSC bags cryopreserved with 10 % DMSO were used. We conducted a paired study; one of the bags was thawed and washed with our standard washing solution (Dextran 40) and the paired bag with HES solution with a final HES and Human Serum Albumin (HSA) concentration of 2.4 % and 4.2 % respectively. Each final product was tested immediately after washing (sample 0') and after 90 min (sample 90') for total nucleated cells (TNC) recovery, acridine orange viability, viable CD34+ enumeration, and clonogenicity. No significant difference was found for any of the cell counts, viability tests, cell recovery, or potency. We can state that the washing solution based on 2.4 % HES and 4.2 % HSA is equivalent to that used in our routine practice. Therefore, we could use the solution with HES, paying special attention to the renal function of the recipient.
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Awan M, Buriak I, Fleck R, Fuller B, Goltsev A, Kerby J, Lowdell M, Mericka P, Petrenko A, Petrenko Y, Rogulska O, Stolzing A, Stacey GN. Dimethyl sulfoxide: a central player since the dawn of cryobiology, is efficacy balanced by toxicity? Regen Med 2020; 15:1463-1491. [PMID: 32342730 DOI: 10.2217/rme-2019-0145] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dimethyl sulfoxide (DMSO) is the cryoprotectant of choice for most animal cell systems since the early history of cryopreservation. It has been used for decades in many thousands of cell transplants. These treatments would not have taken place without suitable sources of DMSO that enabled stable and safe storage of bone marrow and blood cells until needed for transfusion. Nevertheless, its effects on cell biology and apparent toxicity in patients have been an ongoing topic of debate, driving the search for less cytotoxic cryoprotectants. This review seeks to place the toxicity of DMSO in context of its effectiveness. It will also consider means of reducing its toxic effects, the alternatives to its use and their readiness for active use in clinical settings.
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Affiliation(s)
- Maooz Awan
- Institute for Liver & Digestive Health, UCL Division of Medicine, Royal Free Hospital, UCL, London, NW3 2PF, UK
| | - Iryna Buriak
- Institute for Problems of Cryobiology & Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavska 23, 61016, Kharkiv
| | - Roland Fleck
- Centre for Ultrastructural Imaging, Kings College London, London, SE1 1UL, UK
| | - Barry Fuller
- Department of Surgical Biotechnology, UCL Division of Surgery, Royal Free Hospital, UCL, London, NW3 2QG, UK
| | - Anatoliy Goltsev
- Institute for Problems of Cryobiology & Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavska 23, 61016, Kharkiv
| | - Julie Kerby
- Cell & Gene Therapy Catapult, 12th Floor Tower Wing, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK
| | - Mark Lowdell
- Centre for Cell, Gene & Tissue Therapy, Royal Free London NHS FT & UCL, London, NW3 2PF, UK
| | - Pavel Mericka
- Tissue Bank, University Hospital Hradec Kralové, Czech Republic
| | - Alexander Petrenko
- Institute for Problems of Cryobiology & Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavska 23, 61016, Kharkiv
| | - Yuri Petrenko
- Department of Biomaterials & Biophysical Methods, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czech Republic
| | - Olena Rogulska
- Institute for Problems of Cryobiology & Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavska 23, 61016, Kharkiv
| | - Alexandra Stolzing
- University of Loughborough, Centre for Biological Engineering, Loughborough University, Holywell Park, Loughborough, UK
| | - Glyn N Stacey
- International Stem Cell Banking Initiative, 2 High Street, Barley, Hertfordshire, SG8 8HZ
- Beijing Stem Cell Bank, Institute of Zoology, Chinese Academy of Sciences, 25–2 Beishuan West, Haidan District, 100190 Beijing, China
- Institute of Stem Cells & Regeneration, Chinese Academy of Sciences, Beijing 100101, China
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Raffo D, Perez Tito L, Pes ME, Fernandez Sasso D. Evaluation of DMSO dextrose as a suitable alternative for DMSO dextran in cord blood cryopreservation. Vox Sang 2019; 114:283-289. [PMID: 30734294 DOI: 10.1111/vox.12755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 11/21/2018] [Accepted: 01/07/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND OBJECTIVES Umbilical cord blood is considered an alternative source of hematopoietic stem cells. Standard banking procedures use 50/55% DMSO in dextran 40 for cryopreservation and dextran-based solutions for thawing, however, due to the potential risk of crystallization of dextran, dextran 40 approved for clinical use has become limited or unavailable. This affects cryopreservation and thawing procedures. Carbohydrates, in particular sucrose, trehalose and glucose, have been shown to be effective in reducing cell damage during dehydration and have cryoprotective potential. We aim to study a 50/55% DMSO in 5% dextrose cryopreservation solution as an alternative to DMSO dextran. MATERIALS AND METHODS Eighteen samples were divided into two aliquots and cryopreserved, one using standard solution and the other with DMSO dextrose experimental solution. Both aliquots were thawed and diluted with PBS or saline. Total nucleated cells counts, 7-AAD viability of CD45+ cells and recovery of CD34+ viable cells were assessed on thawed samples and compared between pair of aliquots. RESULTS No differences were observed in the total nucleated cells recovery between cryopreservation solutions, however, higher viability and CD34+ viable cells recoveries were observed using the experimental solution. CONCLUSION Results showed that DMSO dextrose cryopreservation solution had better results than the standard solution when thawed in an isotonic solution. This indicates that DMSO dextrose is probably a better alternative for direct infusion or when dextran thawing solutions are unavailable. Viability of CD45+ cells and recovery of CD34+ viable cells have positive correlation with engraftment, highlighting the relevance of the optimization of the cryopreservation and thawing process.
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Xu H, Cao W, Huang L, Xiao M, Cao Y, Zhao L, Wang N, Zhou J. Effects of cryopreservation on chimeric antigen receptor T cell functions. Cryobiology 2018; 83:40-47. [PMID: 29908946 DOI: 10.1016/j.cryobiol.2018.06.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 06/12/2018] [Accepted: 06/13/2018] [Indexed: 12/17/2022]
Abstract
Chimeric antigen receptor T (CART) cell therapy has emerged as a potentially curative "drug" for cancer treatment. Cryopreservation of CART cells is necessary for their clinical application. Systematic studies on the effects of cryopreservation on the antitumor function of CART cells are lacking. Therefore, we compared the phenotypes and functions of CART cells that were cryopreserved during ex vivo expansion with those of freshly isolated populations. T cells expressing an anti-B-cell-maturation-antigen (BCMA) chimeric antigen receptor (CAR) were expanded in vitro for 10 days and then cryopreserved. After one month, the cells were resuscitated, and their transduction rates, apoptosis rates and cell subsets were examined via flow cytometry. The results indicated no significant changes in transduction rates or cell subsets, and the survival rate of the resuscitated cells was approximately 90% Furthermore, similar tumoricidal effects and degranulation functions of the resuscitated cells compared with normally cultured cells were verified by calcein release and CD107a assays. A NOD/SCID mouse model was used to estimate the differences in the in vivo antitumor effects of the cryopreserved and normally cultured T cells, but no significant differences were observed. Following co-culture with several target cell types, the cytokines released by the cryopreserved and normally cultured T cells were measured via enzyme-linked immunosorbent assays (ELISAs). The results revealed that the release of interleukin-2 (IL-2), tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ) was significantly decreased. These data demonstrated that with the exception of a decrease in cytokine release, the cryopreserved CART cells retained their antitumor functions.
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Affiliation(s)
- Hao Xu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenyue Cao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Liang Huang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Min Xiao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yang Cao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lei Zhao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Na Wang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Jianfeng Zhou
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Galindo CC, Vanegas Lozano DM, Camacho Rodríguez B, Perdomo-Arciniegas AM. Improved cord blood thawing procedure enhances the reproducibility and correlation between flow cytometry CD34 + cell viability and clonogenicity assays. Cytotherapy 2018; 20:891-894. [DOI: 10.1016/j.jcyt.2018.03.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/26/2018] [Accepted: 03/27/2018] [Indexed: 10/17/2022]
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Galindo CC, Vanegas Lozano DM, Camacho Rodríguez B, Perdomo-Arciniegas AM. Cord blood attached-segments are not homogeneous in post-thaw CD34 + cell viability and clonogenicity. Cryobiology 2018; 82:163-164. [PMID: 29604250 DOI: 10.1016/j.cryobiol.2018.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/03/2018] [Accepted: 03/27/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Cristian Camilo Galindo
- Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud (IDCBIS), Bogotá DC, Colombia
| | - Diana María Vanegas Lozano
- Cord Blood Bank, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud (IDCBIS), Bogotá DC, Colombia
| | - Bernardo Camacho Rodríguez
- Director, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud (IDCBIS), Bogotá DC, Colombia
| | - Ana-María Perdomo-Arciniegas
- Cord Blood Bank Director, Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud (IDCBIS), Bogotá DC, Colombia.
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Zhu F, Shah N, Xu H, Schneider D, Orentas R, Dropulic B, Hari P, Keever-Taylor CA. Closed-system manufacturing of CD19 and dual-targeted CD20/19 chimeric antigen receptor T cells using the CliniMACS Prodigy device at an academic medical center. Cytotherapy 2017; 20:394-406. [PMID: 29287970 DOI: 10.1016/j.jcyt.2017.09.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 09/01/2017] [Accepted: 09/05/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND AIMS Multiple steps are required to produce chimeric antigen receptor (CAR)-T cells, involving subset enrichment or depletion, activation, gene transduction and expansion. Open processing steps that increase risk of contamination and production failure are required. This complex process requires skilled personnel and costly clean-room facilities and infrastructure. Simplified, reproducible CAR-T-cell manufacturing with reduced labor intensity within a closed-system is highly desirable for increased availability for patients. METHODS The CliniMACS Prodigy with TCT process software and the TS520 tubing set that allows closed-system processing for cell enrichment, transduction, washing and expansion was used. We used MACS-CD4 and CD8-MicroBeads for enrichment, TransAct CD3/CD28 reagent for activation, lentiviral CD8 TM-41BB-CD3 ζ-cfrag vectors expressing scFv for CD19 or CD20/CD19 antigens for transduction, TexMACS medium-3%-HS-IL2 for culture and phosphate-buffered saline/ethylenediaminetetraacetic acid buffer for washing. Processing time was 13 days. RESULTS Enrichment (N = 7) resulted in CD4/CD8 purity of 98 ± 4.0%, 55 ± 6% recovery and CD3+ T-cell purity of 89 ± 10%. Vectors at multiplicity of infection 5-10 resulted in transduction averaging 37%. An average 30-fold expansion of 108 CD4/CD8-enriched cells resulted in sufficient transduced T cells for clinical use. CAR-T cells were 82-100% CD3+ with a mix of CD4+ and CD8+ cells that primarily expressed an effector-memory or central-memory phenotype. Functional testing demonstrated recognition of B-cells and for the CAR-20/19 T cells, CD19 and CD20 single transfectants were recognized in cytotoxic T lymphocyte and interferon-γ production assays. DISCUSSION The CliniMACS Prodigy device, tubing set TS520 and TCT software allow CAR-T cells to be manufactured in a closed system at the treatment site without need for clean-room facilities and related infrastructure.
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Affiliation(s)
- Fenlu Zhu
- Medical College of Wisconsin, Department of Medicine, Hematology & Oncology Division, Milwaukee, Wisconsin, USA
| | - Nirav Shah
- Medical College of Wisconsin, Department of Medicine, Hematology & Oncology Division, Milwaukee, Wisconsin, USA
| | - Huiqing Xu
- Medical College of Wisconsin, Department of Medicine, Hematology & Oncology Division, Milwaukee, Wisconsin, USA
| | - Dina Schneider
- Lentigen Technology, Inc., A Miltenyi Biotec Company, Gaithersburg, Maryland, USA
| | - Rimas Orentas
- Lentigen Technology, Inc., A Miltenyi Biotec Company, Gaithersburg, Maryland, USA
| | - Boro Dropulic
- Lentigen Technology, Inc., A Miltenyi Biotec Company, Gaithersburg, Maryland, USA
| | - Parameswaran Hari
- Medical College of Wisconsin, Department of Medicine, Hematology & Oncology Division, Milwaukee, Wisconsin, USA
| | - Carolyn A Keever-Taylor
- Medical College of Wisconsin, Department of Medicine, Hematology & Oncology Division, Milwaukee, Wisconsin, USA.
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Luo Y, Wang P, Liu H, Zhu Z, Li C, Gao Y. The state of T cells before cryopreservation: Effects on post-thaw proliferation and function. Cryobiology 2017; 79:65-70. [PMID: 28863950 DOI: 10.1016/j.cryobiol.2017.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/23/2017] [Accepted: 08/29/2017] [Indexed: 02/07/2023]
Abstract
AIM We aim to assess the effect of the state of T cells before cryopreservation on the post-thaw proliferative capacity, phenotype and functional response. METHODS Peripheral blood mononuclear cells (PBMCs) were isolated from a hepatocellular carcinoma (HCC) patient, and the T cells were frozen during cell culture according to our experimental design. After a period of re-culture, the proliferative capacity of the cryopreserved cells, the expression of T cell surface markers and the secretion of IFN-γ and IL-10 were assayed. RESULTS There was >90% cell viability after thaw in every group. Lymphocytes cryopreserved at day 4, 8 or 12 during the cell culture were allowed to recover for 24 h, whereas lymphocytes cryopreserved while freshly isolated were allowed to recover for 72 h. After the period of re-culture, cryopreservation at day 4, 8 or 12 during T cell culture was not found to alter the T cell subpopulation. The proportions of NKT and Treg cells were unchanged when cells were cryopreserved at day 12 during T cell culture. IFN-γ secretion was not impacted by cryopreservation, and IL-10 secretion was significantly decreased when cells were cryopreserved at day 8 or 12 during T cell culture. CONCLUSION The state of T cells before cryopreservation has effects on the post-thaw proliferation capacity, the phenotype and the secretion of IFN-γ and IL-10. Cryopreservation of lymphocytes at day 8 or 12 during the cell culture may be the best choice for T cell immunotherapy.
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Affiliation(s)
- Ying Luo
- Tianjin Key Laboratory of Artificial Cell, Tianjin Institute of Hepatobiliary Disease, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Third Central Hospital of Tianjin, Tianjin, 300170, China.
| | - Peng Wang
- Third Central Clinical College of Tianjin Medical University, Tianjin, 300170, China.
| | - Hui Liu
- Tianjin Key Laboratory of Artificial Cell, Tianjin Institute of Hepatobiliary Disease, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Third Central Hospital of Tianjin, Tianjin, 300170, China.
| | - Zhengyan Zhu
- Tianjin Key Laboratory of Artificial Cell, Tianjin Institute of Hepatobiliary Disease, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Third Central Hospital of Tianjin, Tianjin, 300170, China.
| | - Chenglong Li
- Tianjin Key Laboratory of Artificial Cell, Tianjin Institute of Hepatobiliary Disease, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Third Central Hospital of Tianjin, Tianjin, 300170, China.
| | - Yingtang Gao
- Tianjin Key Laboratory of Artificial Cell, Tianjin Institute of Hepatobiliary Disease, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Third Central Hospital of Tianjin, Tianjin, 300170, China; Third Central Clinical College of Tianjin Medical University, Tianjin, 300170, China.
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Abonnenc M, Pesse B, Tissot JD, Barelli S, Lion N. Automatic washing of thawed haematopoietic progenitor cell grafts: a preclinical evaluation. Vox Sang 2017; 112:367-378. [DOI: 10.1111/vox.12503] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 12/21/2016] [Accepted: 01/26/2017] [Indexed: 01/07/2023]
Affiliation(s)
- M. Abonnenc
- Laboratoire R&D Produits; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - B. Pesse
- Laboratoire R&D Produits; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - J.-D. Tissot
- Laboratoire R&D Produits; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - S. Barelli
- Laboratoire R&D Produits; Transfusion Interrégionale CRS; Epalinges Switzerland
| | - N. Lion
- Laboratoire R&D Produits; Transfusion Interrégionale CRS; Epalinges Switzerland
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12
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Effect of Sulfation and Molecular Weight on Anticoagulant Activity of Dextran. Bull Exp Biol Med 2017; 162:462-465. [PMID: 28243911 DOI: 10.1007/s10517-017-3640-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Indexed: 10/20/2022]
Abstract
Sulfation (to 2.8) of dextrans with molecular weight of 150 and 20 kDa was followed by the appearance of anticoagulant activity that increased with decreasing their molecular weight and did not depend on antithrombin, plasma inhibitor of serine proteases of the blood coagulation system. Antithrombin activity of dextran sulfate with a molecular weight of 20 kDa reached 12.6-15.3 U/mg. Dextran sulfates with molecular weights of 20 and 150 kDa did not potentiate ADP-induced human platelet aggregation.
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Cloutier M, Simard C, Jobin C, Fournier D, Néron S. An alternative to dextran for the thawing of cord blood units. Transfusion 2016; 56:1786-91. [DOI: 10.1111/trf.13633] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/16/2016] [Accepted: 03/29/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Marc Cloutier
- Department of Biochemistry, Microbiology and Bio-Informatics; Laval University; Québec City Québec
| | - Carl Simard
- Department of Biochemistry, Microbiology and Bio-Informatics; Laval University; Québec City Québec
| | - Christine Jobin
- Department of Biochemistry, Microbiology and Bio-Informatics; Laval University; Québec City Québec
- Department of Research and Development; Héma-Québec; Québec City Québec, Canada
| | - Diane Fournier
- Public Cord Blood Bank; Héma-Québec; Saint-Laurent Québec Canada
| | - Sonia Néron
- Department of Biochemistry, Microbiology and Bio-Informatics; Laval University; Québec City Québec
- Department of Research and Development; Héma-Québec; Québec City Québec, Canada
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