51
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Murray K, Gao Y, Griffiths CA, Kinney NLH, Guo Q, Gibson MI, Whale TF. Chemically Induced Extracellular Ice Nucleation Reduces Intracellular Ice Formation Enabling 2D and 3D Cellular Cryopreservation. JACS AU 2023; 3:1314-1320. [PMID: 37234117 PMCID: PMC10207112 DOI: 10.1021/jacsau.3c00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/24/2023] [Accepted: 04/20/2023] [Indexed: 05/27/2023]
Abstract
3D cell assemblies such as spheroids reproduce the in vivo state more accurately than traditional 2D cell monolayers and are emerging as tools to reduce or replace animal testing. Current cryopreservation methods are not optimized for complex cell models, hence they are not easily banked and not as widely used as 2D models. Here we use soluble ice nucleating polysaccharides to nucleate extracellular ice and dramatically improve spheroid cryopreservation outcomes. This protects the cells beyond using DMSO alone, and with the major advantage that the nucleators function extracellularly and hence do not need to permeate the 3D cell models. Critical comparison of suspension, 2D and 3D cryopreservation outcomes demonstrated that warm-temperature ice nucleation reduces the formation of (fatal) intracellular ice, and in the case of 2/3D models this reduces propagation of ice between adjacent cells. This demonstrates that extracellular chemical nucleators could revolutionize the banking and deployment of advanced cell models.
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Affiliation(s)
- Kathryn
A. Murray
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
- Division
of Biomedical Sciences, Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Yanan Gao
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
- Department
of Biomedical Engineering, Southern University
of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Christopher A. Griffiths
- Department
of Aquatic Resources, Institute of Marine Research, Swedish University of Agricultural Sciences, Turistgatan 5, 453 30 Lysekil, Sweden
| | - Nina L. H. Kinney
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Qiongyu Guo
- Department
of Biomedical Engineering, Southern University
of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Matthew I. Gibson
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
- Division
of Biomedical Sciences, Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Thomas F. Whale
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
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52
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Alcalá E, Encabo L, Barroso F, Puentes A, Risco I, Risco R. Sound waves for solving the problem of recrystallization in cryopreservation. Sci Rep 2023; 13:7603. [PMID: 37165149 PMCID: PMC10172391 DOI: 10.1038/s41598-023-34681-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 05/05/2023] [Indexed: 05/12/2023] Open
Abstract
Organ biobanking is the pending subject of cryopreservation. Although the problem is multifaceted, advances in recent decades have largely related it to achieving rapid and uniform rewarming of cryopreserved samples. This is a physical challenge largely investigated in past in addition to cryoprotectant toxicity studies, which have also shown a great amount of advancement. This paper presents a proof-of-principle, based on the nematode Caenorhabditis elegans, of a technology capable of performing such a function: high intensity focused ultrasound. Thus, avoiding the problem of recrystallization, this worm, in its adult state, preserved at - [Formula: see text], has been systematically brought back to life after being heated with High Intensity Focused Ultrasound (HIFU) waves. The great advantage of this technology is that it is scalable; in addition, rewarming can be monitored in real time by MRI thermography and can be controlled by acoustic interferometry. We anticipate that our findings are the starting point for a possible approach to rewarming that can be used for cryopreservation of millimeter scale systems: either alone or in combination with other promising ways of heating, like nanowarming or dielectric heating, the present technology provides new ways of solving the physical aspects of the problem of recrystallization in cryopreservation, opening the door for the long-term storage of larger samples.
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Affiliation(s)
- Enrique Alcalá
- Escuela Superior de Ingenieria, C/Camino de los Descubrimientos s/n, University of Seville, 41092, Seville, Spain
| | - Laura Encabo
- Escuela Superior de Ingenieria, C/Camino de los Descubrimientos s/n, University of Seville, 41092, Seville, Spain
| | - Fatima Barroso
- Escuela Superior de Ingenieria, C/Camino de los Descubrimientos s/n, University of Seville, 41092, Seville, Spain
| | - Adriana Puentes
- Escuela Superior de Ingenieria, C/Camino de los Descubrimientos s/n, University of Seville, 41092, Seville, Spain
| | - Isabel Risco
- SafePreservation, C/Avda. De la Ciencias 55, 41020, Seville, Spain
| | - Ramon Risco
- Escuela Superior de Ingenieria, C/Camino de los Descubrimientos s/n, University of Seville, 41092, Seville, Spain.
- National Accelerators Centre-US, JA, CSIC, C/Tomas Alva Edison 7, 41092, Seville, Spain.
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53
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Wu Y, Li N, Shu X, Li W, Zhang X, Lü D, Long M. Biomechanics in liver regeneration after partial hepatectomy. Front Bioeng Biotechnol 2023; 11:1165651. [PMID: 37214300 PMCID: PMC10196191 DOI: 10.3389/fbioe.2023.1165651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/18/2023] [Indexed: 05/24/2023] Open
Abstract
The liver is a complicated organ within the body that performs wide-ranging and vital functions and also has a unique regenerative capacity after hepatic tissue injury and cell loss. Liver regeneration from acute injury is always beneficial and has been extensively studied. Experimental models including partial hepatectomy (PHx) reveal that extracellular and intracellular signaling pathways can help the liver recover to its equivalent size and weight prior to an injury. In this process, mechanical cues possess immediate and drastic changes in liver regeneration after PHx and also serve as main triggering factors and significant driving forces. This review summarized the biomechanics progress in liver regeneration after PHx, mainly focusing on PHx-based hemodynamics changes in liver regeneration and the decoupling of mechanical forces in hepatic sinusoids including shear stress, mechanical stretch, blood pressure, and tissue stiffness. Also discussed were the potential mechanosensors, mechanotransductive pathways, and mechanocrine responses under varied mechanical loading in vitro. Further elucidating these mechanical concepts in liver regeneration helps establish a comprehensive understanding of the biochemical factors and mechanical cues in this process. Proper adjustment of mechanical loading within the liver might preserve and restore liver functions in clinical settings, serving as an effective therapy for liver injury and diseases.
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Affiliation(s)
- Yi Wu
- Center for Biomechanics and Bioengineering, Beijing Key Laboratory of Engineered Construction and Mechanobiology and Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Ning Li
- Center for Biomechanics and Bioengineering, Beijing Key Laboratory of Engineered Construction and Mechanobiology and Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xinyu Shu
- Center for Biomechanics and Bioengineering, Beijing Key Laboratory of Engineered Construction and Mechanobiology and Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Wang Li
- Center for Biomechanics and Bioengineering, Beijing Key Laboratory of Engineered Construction and Mechanobiology and Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoyu Zhang
- Center for Biomechanics and Bioengineering, Beijing Key Laboratory of Engineered Construction and Mechanobiology and Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Dongyuan Lü
- Center for Biomechanics and Bioengineering, Beijing Key Laboratory of Engineered Construction and Mechanobiology and Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Mian Long
- Center for Biomechanics and Bioengineering, Beijing Key Laboratory of Engineered Construction and Mechanobiology and Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
- School of Engineering Sciences, University of Chinese Academy of Sciences, Beijing, China
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54
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Amini M, Benson JD. Technologies for Vitrification Based Cryopreservation. Bioengineering (Basel) 2023; 10:bioengineering10050508. [PMID: 37237578 DOI: 10.3390/bioengineering10050508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/08/2023] [Accepted: 03/30/2023] [Indexed: 05/28/2023] Open
Abstract
Cryopreservation is a unique and practical method to facilitate extended access to biological materials. Because of this, cryopreservation of cells, tissues, and organs is essential to modern medical science, including cancer cell therapy, tissue engineering, transplantation, reproductive technologies, and bio-banking. Among diverse cryopreservation methods, significant focus has been placed on vitrification due to low cost and reduced protocol time. However, several factors, including the intracellular ice formation that is suppressed in the conventional cryopreservation method, restrict the achievement of this method. To enhance the viability and functionality of biological samples after storage, a large number of cryoprotocols and cryodevices have been developed and studied. Recently, new technologies have been investigated by considering the physical and thermodynamic aspects of cryopreservation in heat and mass transfer. In this review, we first present an overview of the physiochemical aspects of freezing in cryopreservation. Secondly, we present and catalog classical and novel approaches that seek to capitalize on these physicochemical effects. We conclude with the perspective that interdisciplinary studies provide pieces of the cryopreservation puzzle to achieve sustainability in the biospecimen supply chain.
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Affiliation(s)
- Mohammad Amini
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada
| | - James D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada
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55
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Wu WK, Stier MT, Stokes JW, Ukita R, Patel YJ, Cortelli M, Landstreet SR, Talackine JR, Cardwell NL, Simonds EM, Mentz M, Lowe C, Benson C, Demarest CT, Alexopoulos SP, Shaver CM, Bacchetta M. Immune characterization of a xenogeneic human lung cross-circulation support system. SCIENCE ADVANCES 2023; 9:eade7647. [PMID: 37000867 PMCID: PMC10065447 DOI: 10.1126/sciadv.ade7647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Improved approaches to expanding the pool of donor lungs suitable for transplantation are critically needed for the growing population with end-stage lung disease. Cross-circulation (XC) of whole blood between swine and explanted human lungs has previously been reported to enable the extracorporeal recovery of donor lungs that declined for transplantation due to acute, reversible injuries. However, immunologic interactions of this xenogeneic platform have not been characterized, thus limiting potential translational applications. Using flow cytometry and immunohistochemistry, we demonstrate that porcine immune cell and immunoglobulin infiltration occurs in this xenogeneic XC system, in the context of calcineurin-based immunosuppression and complement depletion. Despite this, xenogeneic XC supported the viability, tissue integrity, and physiologic improvement of human donor lungs over 24 hours of xeno-support. These findings provide targets for future immunomodulatory strategies to minimize immunologic interactions on this organ support biotechnology.
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Affiliation(s)
- Wei K. Wu
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Surgery, Division of Hepatobiliary Surgery and Liver Transplantation, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Matthew T. Stier
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - John W. Stokes
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Rei Ukita
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Yatrik J. Patel
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Michael Cortelli
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Stuart R. Landstreet
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jennifer R. Talackine
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nancy L. Cardwell
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Elizabeth M. Simonds
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Meredith Mentz
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Cindy Lowe
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Clayne Benson
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Caitlin T. Demarest
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Sophoclis P. Alexopoulos
- Department of Surgery, Division of Hepatobiliary Surgery and Liver Transplantation, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Ciara M. Shaver
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Corresponding author. (M.B.); (C.M.S.)
| | - Matthew Bacchetta
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
- Corresponding author. (M.B.); (C.M.S.)
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56
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Higgins AZ, Lavarti R, Eroglu B, Ahmadkhani N, Benson JD, Eroglu A. Permeation of individual cryoprotectants and their different combinations into mouse liver tissue. Cryobiology 2023; 111:26-29. [PMID: 36934956 DOI: 10.1016/j.cryobiol.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/09/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023]
Abstract
Development of successful tissue cryopreservation methods requires specific knowledge regarding tissue permeation of individual cryoprotective agents (CPAs) and their combinations. The present study assessed the permeation of dimethyl sulfoxide, ethylene glycol, and propylene glycol into liver tissue, and addressed whether the diffusion coefficient of individual CPAs changes when combining CPAs. To do this, mouse liver slices were exposed at room temperature to 3.5 mol/L concentrations of CPAs individually or in combination for 15, 30, 45, and 60 minutes. Subsequently, tissue CPA concentrations were determined using a gas chromatography/mass spectrometry (GC/MS) method. Our results show that (1) the GC/MS method allows measurement of multiple CPA concentrations in a single small tissue sample, (2) dimethyl sulfoxide has a higher diffusion coefficient than ethylene glycol and propylene glycol, and (3) the CPA diffusivity appears to decrease in mixtures with multiple CPAs. These findings may help the development of effective tissue cryopreservation methods.
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Affiliation(s)
- Adam Z Higgins
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA
| | - Rupa Lavarti
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia - Augusta University, Augusta, GA, USA
| | - Binnur Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia - Augusta University, Augusta, GA, USA
| | - Nima Ahmadkhani
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA
| | - James D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ali Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia - Augusta University, Augusta, GA, USA; Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, Augusta, GA, USA.
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57
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Liu M, Chen C, Liang L, Yu C, Guo B, Zhang H, Qiu Y, Zhang H, Yao F, Li J. A biocompatible cell cryoprotectant based on sulfoxide-containing amino acids: mechanism and application. J Mater Chem B 2023; 11:2504-2517. [PMID: 36852742 DOI: 10.1039/d3tb00005b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
The preservation of cells at cryogenic temperatures requires the presence of cryoprotectants (CPAs). Dimethyl sulfoxide (DMSO), as a state-of-the-art CPA, is widely used for the storage of many types of cells. However, its intrinsic toxicity is still an obstacle for its applications in clinical practice. Herein, we report a DMSO analogue, L-methionine sulfoxide (Met(O)-OH), as a CPA for cell cryopreservation. The molecular-level cryopreservation roles of Met(O)-OH were investigated by experiments and molecular dynamics simulations. The results also found that Met(O)-OH showed high ice recrystallization inhibition (IRI) activity and the ice crystals in Met(O)-OH solution tend to be relatively round and smooth; moreover, the ice size was significantly reduced to 30.26 μm compared with pure water (135.87 μm) or DMSO solution (45.08 μm). At the molecular level, Met(O)-OH could stably bind the surface of the ice crystals and form more stable hydrogen bonds with ice compared with L-methionine. Moreover, Met(O)-OH could significantly reduce the damage to cells caused by osmotic shock and did not change the cell viability even at high concentration (4%). Based on these results, nucleated L929 cells and anuclear sheep red blood cells (SRBCs) were used as cell models to investigate the cryopreservation activity of Met(O)-OH. The results suggested that, under the optimum protocol, Met(O)-OH showed an effective post-thaw survival efficiency with ultrarapid freezing, and the post-thaw survival efficiency of L929 cells reached 84.0%. This work opens up the possibility for an alternative to traditional toxic CPA DMSO, and provides insights for the development of DMSO analogues with non-toxic/low toxicity for cell cryoprotection applications.
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Affiliation(s)
- Min Liu
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
| | - Changhong Chen
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
| | - Lei Liang
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
| | - Chaojie Yu
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
| | - Bingyan Guo
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
| | - Haitao Zhang
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
| | - Yuwei Qiu
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
| | - Hong Zhang
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China. .,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Fanglian Yao
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China. .,Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300350, China
| | - Junjie Li
- Department of Polymer Science, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China. .,Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300350, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
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58
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DeLaura I, Anwar IJ, Ladowski J, Patino A, Cantrell S, Sanoff S. Attitudes of patients with renal disease on xenotransplantation: A systematic review. Xenotransplantation 2023; 30:e12794. [PMID: 36880602 DOI: 10.1111/xen.12794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/09/2022] [Accepted: 01/26/2023] [Indexed: 03/08/2023]
Abstract
BACKGROUND Recent years have seen major advancements in xenotransplantation: the first pig-to-human heart transplant, the development of a brain-dead recipient model for kidney xenotransplantation, and the registration of the first xenokidney clinical trial. The attitudes of patients with kidney disease or transplants on xenotransplantation and an assessment of their reservations and considerations regarding the technology are crucial to successful clinical translation and eventual widespread implementation. METHODS This systematic review was registered through PROSPERO (CRD42022344581) prior to initiation of the study and reported using the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines. We included studies that evaluated attitudes towards and willingness to undergo xenotransplantation in patients with end-stage renal disease (ESRD), including those who had already undergone transplantation. MEDLINE (via Ovid), Embase (via Elsevier), and Web of Science (via Clarivate) were searched from database inception to July 15, 2022 by an experienced medical librarian for studies on xenotransplantation and attitudes. Abstracts and full text were screened using Covidence software and data items regarding study methodology, patient demographics, and attitudes regarding xenotransplantation were extracted using Microsoft Excel. Risk of bias assessments were performed using the Critical Appraisal Skills Programmed and National Institute of Health study quality assessment tools. RESULTS Of 1992 studies identified, 14 studies met the inclusion criteria. These studies were conducted across eight countries, four in the United States, for a total of 3114 patients on the kidney waitlist or with a kidney transplant. All patients were over 17 years old and 58% were male. Acceptance of a xenotransplant was assessed using surveys in 12 studies. Sixty-three percent (n = 1354) of kidney patients reported that they would accept a xenotransplant with function comparable to that of an allotransplant. Acceptance of xenografts with inferior function to allografts (15%) or as bridge organs (35%) to allotransplantation was lower. Specific concerns expressed by patients included graft function, infection, social stigma, and animal rights. Subgroup analyses showed higher acceptance in already transplanted compared to waitlist patients and white compared to Black Americans. CONCLUSION An understanding of patient attitudes and reservations is key to the successful execution of the first xenotransplantation clinical trials. This study compiles important factors to consider, such as patient concerns, attitudes regarding practical clinical scenarios for the use of xenotransplantation, and the impact of demographic factors on acceptance of this emerging technology.
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Affiliation(s)
- Isabel DeLaura
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, North Carolina, USA
| | - Imran J Anwar
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, North Carolina, USA
| | - Joseph Ladowski
- Duke Transplant Center, Department of Surgery, Duke University Medical Center, Durham, North Carolina, USA
| | | | - Sarah Cantrell
- Duke University Medical Center Library & Archives, Duke University School of Medicine, Durham, North Carolina, USA
| | - Scott Sanoff
- Department of Medicine, Division of Nephrology, Duke University, Durham, North Carolina, USA
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59
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Chen P, Wang S, Chen Z, Ren P, Hepfer RG, Greene ED, Campbell LH, Helke KL, Nie X, Jensen JH, Hill C, Wu Y, Brockbank KGM, Yao H. Nanowarming and ice-free cryopreservation of large sized, intact porcine articular cartilage. Commun Biol 2023; 6:220. [PMID: 36828843 PMCID: PMC9958003 DOI: 10.1038/s42003-023-04577-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 02/10/2023] [Indexed: 02/26/2023] Open
Abstract
Successful organ or tissue long-term preservation would revolutionize biomedicine. Cartilage cryopreservation enables prolonged shelf life of articular cartilage, posing the prospect to broaden the implementation of promising osteochondral allograft (OCA) transplantation for cartilage repair. However, cryopreserved large sized cartilage cannot be successfully warmed with the conventional convection warming approach due to its limited warming rate, blocking its clinical potential. Here, we develope a nanowarming and ice-free cryopreservation method for large sized, intact articular cartilage preservation. Our method achieves a heating rate of 76.8 °C min-1, over one order of magnitude higher than convection warming (4.8 °C min-1). Using systematic cell and tissue level tests, we demonstrate the superior performance of our method in preserving large cartilage. A depth-dependent preservation manner is also observed and recapitulated through magnetic resonance imaging and computational modeling. Finally, we show that the delivery of nanoparticles to the OCA bone side could be a feasible direction for further optimization of our method. This study pioneers the application of nanowarming and ice-free cryopreservation for large articular cartilage and provides valuable insights for future technique development, paving the way for clinical applications of cryopreserved cartilage.
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Affiliation(s)
- Peng Chen
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - Shangping Wang
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - Zhenzhen Chen
- Tissue Testing Technology LLC, North Charleston, SC, USA
| | - Pengling Ren
- Department of Bioengineering, Clemson University, Clemson, SC, USA
- Department of Orthopaedics, Medical University of South Carolina, Charleston, SC, USA
| | - R Glenn Hepfer
- Department of Bioengineering, Clemson University, Clemson, SC, USA
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | | | - Lia H Campbell
- Tissue Testing Technology LLC, North Charleston, SC, USA
| | - Kristi L Helke
- Department of Comparative Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Xingju Nie
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA
| | - Jens H Jensen
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA
| | - Cherice Hill
- Department of Bioengineering, Clemson University, Clemson, SC, USA
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Yongren Wu
- Department of Bioengineering, Clemson University, Clemson, SC, USA
- Department of Orthopaedics, Medical University of South Carolina, Charleston, SC, USA
| | - Kelvin G M Brockbank
- Department of Bioengineering, Clemson University, Clemson, SC, USA
- Tissue Testing Technology LLC, North Charleston, SC, USA
| | - Hai Yao
- Department of Bioengineering, Clemson University, Clemson, SC, USA.
- Department of Orthopaedics, Medical University of South Carolina, Charleston, SC, USA.
- Department of Oral Health Sciences, Medical University of South Carolina, Charleston, SC, USA.
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60
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Comparisons between Plant and Animal Stem Cells Regarding Regeneration Potential and Application. Int J Mol Sci 2023; 24:ijms24054392. [PMID: 36901821 PMCID: PMC10002278 DOI: 10.3390/ijms24054392] [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: 12/23/2022] [Revised: 02/16/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
Regeneration refers to the process by which organisms repair and replace lost tissues and organs. Regeneration is widespread in plants and animals; however, the regeneration capabilities of different species vary greatly. Stem cells form the basis for animal and plant regeneration. The essential developmental processes of animals and plants involve totipotent stem cells (fertilized eggs), which develop into pluripotent stem cells and unipotent stem cells. Stem cells and their metabolites are widely used in agriculture, animal husbandry, environmental protection, and regenerative medicine. In this review, we discuss the similarities and differences in animal and plant tissue regeneration, as well as the signaling pathways and key genes involved in the regulation of regeneration, to provide ideas for practical applications in agriculture and human organ regeneration and to expand the application of regeneration technology in the future.
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Liu R, Zhang K, Li H, Sun Q, Wei X, Li H, Zhang S, Fan S, Wang Z. Dissecting the microbial community structure of internal organs during the early postmortem period in a murine corpse model. BMC Microbiol 2023; 23:38. [PMID: 36765295 PMCID: PMC9912631 DOI: 10.1186/s12866-023-02786-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
BACKGROUND Microorganisms distribute and proliferate both inside and outside the body, which are the main mediators of decomposition after death. However, limited information is available on the postmortem microbiota changes of extraintestinal body sites in the early decomposition stage of mammalian corpses. RESULTS This study investigated microbial composition variations among different organs and the relationship between microbial communities and time since death over 1 day of decomposition in male C57BL/6 J mice by 16S rRNA sequencing. During 1 day of decomposition, Agrobacterium, Prevotella, Bacillus, and Turicibacter were regarded as time-relevant genera in internal organs at different timepoints. Pathways associated with lipid, amino acid, carbohydrate and terpenoid and polyketide metabolism were significantly enriched at 8 h than that at 0.5 or 4 h. The microbiome compositions and postmortem metabolic pathways differed by time since death, and more importantly, these alterations were organ specific. CONCLUSION The dominant microbes differed by organ, while they tended toward similarity as decomposition progressed. The observed thanatomicrobiome variation by body site provides new knowledge into decomposition ecology and forensic microbiology. Additionally, the microbes detected at 0.5 h in internal organs may inform a new direction for organ transplantation.
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Affiliation(s)
- Ruina Liu
- grid.43169.390000 0001 0599 1243College of Forensic Medicine, Xi’an Jiaotong University, Xi’an, 710061 China
| | - Kai Zhang
- grid.43169.390000 0001 0599 1243College of Forensic Medicine, Xi’an Jiaotong University, Xi’an, 710061 China
| | - Huan Li
- grid.452910.bXi’an Mental Health Center Hospital, Xi’an, 710061 China
| | - Qinru Sun
- grid.43169.390000 0001 0599 1243College of Forensic Medicine, Xi’an Jiaotong University, Xi’an, 710061 China
| | - Xin Wei
- grid.43169.390000 0001 0599 1243College of Forensic Medicine, Xi’an Jiaotong University, Xi’an, 710061 China
| | - Huiyu Li
- grid.43169.390000 0001 0599 1243College of Forensic Medicine, Xi’an Jiaotong University, Xi’an, 710061 China
| | - Siruo Zhang
- grid.440288.20000 0004 1758 0451Department of Clinical Laboratory, Shaanxi Provincial People’s Hospital, Shaanxi Xi’an, 710068 People’s Republic of China ,grid.43169.390000 0001 0599 1243Department of Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Shaanxi Xi’an, 710061 People’s Republic of China
| | - Shuanliang Fan
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Zhenyuan Wang
- College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, 710061, China.
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Schuler MJ, Becker D, Mueller M, Bautista Borrego L, Mancina L, Huwyler F, Binz J, Hagedorn C, Schär B, Gygax E, Weisskopf M, Sousa Da Silva RX, Antunes Crisóstomo JM, Dutkowski P, Rudolf von Rohr P, Clavien PA, Tibbitt MW, Eshmuminov D, Hefti M. Observations and findings during the development of a subnormothermic/normothermic long-term ex vivo liver perfusion machine. Artif Organs 2023; 47:317-329. [PMID: 36106378 DOI: 10.1111/aor.14403] [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: 04/03/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Ex situliver machine perfusion at subnormothermic/normothermic temperature isincreasingly applied in the field of transplantation to store and evaluateorgans on the machine prior transplantation. Currently, various perfusionconcepts are in clinical and preclinical applications. Over the last 6 years ina multidisciplinary team, a novel blood based perfusion technology wasdeveloped to keep a liver alive and metabolically active outside of the bodyfor at least one week. METHODS Within thismanuscript, we present and compare three scenarios (Group 1, 2 and 3) we werefacing during our research and development (R&D) process, mainly linked tothe measurement of free hemoglobin and lactate in the blood based perfusate. Apartfrom their proven value in liver viability assessment (ex situ), these twoparameters are also helpful in R&D of a long-term liver perfusion machine and moreover supportive in the biomedical engineering process. RESULTS Group 1 ("good" liver on the perfusion machine) represents the best liver clearance capacity for lactate and free hemoglobin wehave observed. In contrast to Group 2 ("poor" liver on the perfusion machine), that has shown the worst clearance capacity for free hemoglobin. Astonishingly,also for Group 2, lactate is cleared till the first day of perfusion andafterwards, rising lactate values are detected due to the poor quality of theliver. These two perfusate parametersclearly highlight the impact of the organ quality/viability on the perfusion process. Whereas Group 3 is a perfusion utilizing a blood loop only (without a liver). CONCLUSION Knowing the feasible ranges (upper- and lower bound) and the courseover time of free hemoglobin and lactate is helpful to evaluate the quality ofthe organ perfusion itself and the maturity of the developed perfusion device. Freehemoglobin in the perfusate is linked to the rate of hemolysis that indicates how optimizing (gentle blood handling, minimizing hemolysis) the perfusion machine actually is. Generally, a reduced lactate clearancecapacity can be an indication for technical problems linked to the blood supplyof the liver and therefore helps to monitor the perfusion experiments.Moreover, the possibility is given to compare, evaluate and optimize developed liverperfusion systems based on the given ranges for these two parameters. Otherresearch groups can compare/quantify their perfusate (blood) parameters withthe ones in this manuscript. The presented data, findings and recommendations willfinally support other researchers in developing their own perfusion machine ormodifying commercially availableperfusion devices according to their needs.
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Affiliation(s)
- Martin J Schuler
- Wyss Zurich - ETH Zurich/University of Zurich, Zurich, Switzerland
| | - Dustin Becker
- Wyss Zurich - ETH Zurich/University of Zurich, Zurich, Switzerland
| | - Matteo Mueller
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | - Lucia Bautista Borrego
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | - Leandro Mancina
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | - Florian Huwyler
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Jonas Binz
- Wyss Zurich - ETH Zurich/University of Zurich, Zurich, Switzerland
| | - Catherine Hagedorn
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | - Beatrice Schär
- Entwicklung biomedizinische Anwendungen, Securecell AG, Urdorf, Switzerland
| | - Erich Gygax
- Forschung und Entwicklung, Fumedica AG, Muri, Switzerland
| | - Miriam Weisskopf
- Center of Surgical Research, University Hospital Zürich, University of Zürich, Zurich, Switzerland
| | - Richard Xavier Sousa Da Silva
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | | | - Philipp Dutkowski
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | - Philipp Rudolf von Rohr
- Transport Processes and Reactions Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Pierre-Alain Clavien
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | - Mark W Tibbitt
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Dilmurodjon Eshmuminov
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | - Max Hefti
- Wyss Zurich - ETH Zurich/University of Zurich, Zurich, Switzerland
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Sarmah H, Sawada A, Hwang Y, Miura A, Shimamura Y, Tanaka J, Yamada K, Mori M. Towards human organ generation using interspecies blastocyst complementation: Challenges and perspectives for therapy. Front Cell Dev Biol 2023; 11:1070560. [PMID: 36743411 PMCID: PMC9893295 DOI: 10.3389/fcell.2023.1070560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 01/05/2023] [Indexed: 01/20/2023] Open
Abstract
Millions of people suffer from end-stage refractory diseases. The ideal treatment option for terminally ill patients is organ transplantation. However, donor organs are in absolute shortage, and sadly, most patients die while waiting for a donor organ. To date, no technology has achieved long-term sustainable patient-derived organ generation. In this regard, emerging technologies of chimeric human organ production via blastocyst complementation (BC) holds great promise. To take human organ generation via BC and transplantation to the next step, we reviewed current emerging organ generation technologies and the associated efficiency of chimera formation in human cells from the standpoint of developmental biology.
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Affiliation(s)
- Hemanta Sarmah
- Department of Medicine, Columbia Center for Human Development, Columbia University Medical Center, New York, NY, United States
| | - Anri Sawada
- Department of Medicine, Columbia Center for Human Development, Columbia University Medical Center, New York, NY, United States
| | - Youngmin Hwang
- Department of Medicine, Columbia Center for Human Development, Columbia University Medical Center, New York, NY, United States
| | - Akihiro Miura
- Department of Medicine, Columbia Center for Human Development, Columbia University Medical Center, New York, NY, United States
| | - Yuko Shimamura
- Department of Medicine, Columbia Center for Human Development, Columbia University Medical Center, New York, NY, United States
| | - Junichi Tanaka
- Department of Medicine, Columbia Center for Human Development, Columbia University Medical Center, New York, NY, United States
| | - Kazuhiko Yamada
- Department of Surgery, Johns Hopkins University, Baltimore, MD, United States
| | - Munemasa Mori
- Department of Medicine, Columbia Center for Human Development, Columbia University Medical Center, New York, NY, United States
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Boadu P, McLaughlin L, Al-Haboubi M, Bostock J, Noyes J, O'Neill S, Mays N. A machine-learning approach to estimating public intentions to become a living kidney donor in England: Evidence from repeated cross-sectional survey data. Front Public Health 2023; 10:1052338. [PMID: 36684997 PMCID: PMC9846224 DOI: 10.3389/fpubh.2022.1052338] [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: 09/23/2022] [Accepted: 11/30/2022] [Indexed: 01/05/2023] Open
Abstract
Background Living kidney organ donors offer a cost-effective alternative to deceased organ donation. They enable patients with life-threatening conditions to receive grafts that would otherwise not be available, thereby creating space for other patients waiting for organs and contributing to reducing overall waiting times for organs. There is an emerging consensus that an increase in living donation could contribute even more than deceased donation to reducing inequalities in organ donation between different population sub-groups in England. Increasing living donation is thus a priority for National Health Service Blood and Transplant (NHSBT) in the United Kingdom. Methods Using the random forest model, a machine learning (ML) approach, this study analyzed eight waves of repeated cross-sectional survey data collected from 2017 to 2021 (n = 14,278) as part of the organ donation attitudinal tracker survey commissioned by NHSBT in England to identify and help predict key factors that inform public intentions to become living donors. Results Overall, around 58.8% of the population would consider donating their kidney to a family member (50.5%), a friend (28%) or an unknown person (13.2%). The ML algorithm identified important factors that influence intentions to become a living kidney donor. They include, in reducing order of importance, support for organ donation, awareness of organ donation publicity campaigns, gender, age, occupation, religion, number of children in the household, and ethnic origin. Support for organ donation, awareness of public campaigns, and being younger were all positively associated with predicted propensity for living donation. The variable importance scores show that ethnic origin and religion were less important than the other variables in predicting living donor intention. Conclusion Factors influencing intentions to become a living donor are complex and highly individual in nature. Machine learning methods that allow for complex interactions between characteristics can be helpful in explaining these decisions. This work has identified important factors and subgroups that have higher propensity for living donation. Interventions should target both potential live donors and recipients. Research is needed to explore the extent to which these preferences are malleable to better understand what works and in which contexts to increase live organ donation.
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Affiliation(s)
- Paul Boadu
- Policy Innovation and Evaluation Research Unit, Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Leah McLaughlin
- School of Medical and Health Sciences, Bangor University, Bangor, United Kingdom
| | - Mustafa Al-Haboubi
- Policy Innovation and Evaluation Research Unit, Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Jennifer Bostock
- Policy Innovation and Evaluation Research Unit, Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Jane Noyes
- School of Medical and Health Sciences, Bangor University, Bangor, United Kingdom
| | - Stephen O'Neill
- Policy Innovation and Evaluation Research Unit, Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Nicholas Mays
- Policy Innovation and Evaluation Research Unit, Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Lin M, Cao H, Li J. Control strategies of ice nucleation, growth, and recrystallization for cryopreservation. Acta Biomater 2023; 155:35-56. [PMID: 36323355 DOI: 10.1016/j.actbio.2022.10.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/20/2022] [Accepted: 10/26/2022] [Indexed: 02/02/2023]
Abstract
The cryopreservation of biomaterials is fundamental to modern biotechnology and biomedicine, but the biggest challenge is the formation of ice, resulting in fatal cryoinjury to biomaterials. To date, abundant ice control strategies have been utilized to inhibit ice formation and thus improve cryopreservation efficiency. This review focuses on the mechanisms of existing control strategies regulating ice formation and the corresponding applications to biomaterial cryopreservation, which are of guiding significance for the development of ice control strategies. Herein, basics related to biomaterial cryopreservation are introduced first. Then, the theoretical bases of ice nucleation, growth, and recrystallization are presented, from which the key factors affecting each process are analyzed, respectively. Ice nucleation is mainly affected by melting temperature, interfacial tension, shape factor, and kinetic prefactor, and ice growth is mainly affected by solution viscosity and cooling/warming rate, while ice recrystallization is inhibited by adsorption or diffusion mechanisms. Furthermore, the corresponding research methods and specific control strategies for each process are summarized. The review ends with an outlook of the current challenges and future perspectives in cryopreservation. STATEMENT OF SIGNIFICANCE: Ice formation is the major limitation of cryopreservation, which causes fatal cryoinjury to cryopreserved biomaterials. This review focuses on the three processes related to ice formation, called nucleation, growth, and recrystallization. The theoretical models, key influencing factors, research methods and corresponding ice control strategies of each process are summarized and discussed, respectively. The systematic introduction on mechanisms and control strategies of ice formation is instructive for the cryopreservation development.
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Affiliation(s)
- Min Lin
- Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory for CO(2) Utilization and Reduction Technology, Tsinghua University, Beijing 100084, China
| | - Haishan Cao
- Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory for CO(2) Utilization and Reduction Technology, Tsinghua University, Beijing 100084, China.
| | - Junming Li
- Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory for CO(2) Utilization and Reduction Technology, Tsinghua University, Beijing 100084, China
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66
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Large surface deformation due to thermo-mechanical effects during cryopreservation by vitrification - mathematical model and experimental validation. PLoS One 2023; 18:e0282613. [PMID: 36893176 PMCID: PMC9997942 DOI: 10.1371/journal.pone.0282613] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 02/18/2023] [Indexed: 03/10/2023] Open
Abstract
This study presents a simplified thermal-fluids (TF) mathematical model to analyze large surface deformations in cryoprotective agents (CPA) during cryopreservation by vitrification. The CPA deforms during vitrification due to material flow caused by the combined effects of thermal gradients within the domain, thermal contraction due to temperature, and exponential increase in the viscosity of the CPA as it is cooled towards glass transition. While it is well understood that vitrification is associated with thermo-mechanical stress, which might lead to structural damage, those large deformations can lead to stress concentration, further intensifying the probability to structural failure. The results of the TF model are experimentally validated by means of cryomacroscopy on a cuvette containing 7.05M dimethyl sulfoxide (DMSO) as a representative CPA. The TF model presented in this study is a simplified version of a previously presented thermo-mechanics (TM) model, where the TM model is set to solve the coupled heat transfer, fluid mechanics and solid mechanics problems, while the TF model omits further deformations in the solid state. It is demonstrated in this study that the TF model alone is sufficient to capture large-body deformations during vitrification. However, the TF model alone cannot be used to estimate mechanical stresses, which become significant only when the deformation rates become so small that the deformed body practically behaves as an amorphous solid. This study demonstrates the high sensitivity of deformation predictions to variation in material properties, chief among which are the variations of density and viscosity with temperature. Finally, this study includes a discussion on the possibility of turning on and off the TF and TM models in respective parts of the domain, in order to solve the multiphysics problem in a computationally cost-effective manner.
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67
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Xu R, Treeby BE, Martin E. Experiments and simulations demonstrating the rapid ultrasonic rewarming of frozen tissue cryovials. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 153:517. [PMID: 36732249 DOI: 10.1121/10.0016886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/02/2023] [Indexed: 06/18/2023]
Abstract
The development of methods to safely rewarm large cryopreserved biological samples remains a barrier to the widespread adoption of cryopreservation. Here, experiments and simulations were performed to demonstrate that ultrasound can increase rewarming rates relative to thermal conduction alone. An ultrasonic rewarming setup based on a custom 444 kHz tubular piezoelectric transducer was designed, characterized, and tested with 2 ml cryovials filled with frozen ground beef. Rewarming rates were characterized in the -20 °C to 5 °C range. Thermal conduction-based rewarming was compared to thermal conduction plus ultrasonic rewarming, demonstrating a tenfold increase in rewarming rate when ultrasound was applied. The maximum recorded rewarming rate with ultrasound was 57° C/min, approximately 2.5 times faster than with thermal conduction alone. Coupled acoustic and thermal simulations were developed and showed good agreement with the heating rates demonstrated experimentally and were also used to demonstrate spatial heating distributions with small (<3° C) temperature differentials throughout the sample when the sample was below 0° C. The experiments and simulations demonstrate the potential for ultrasonic cryovial rewarming with a possible application to large volume rewarming, as faster rewarming rates may improve the viability of cryopreserved tissues and reduce the time needed for cells to regain normal function.
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Affiliation(s)
- Rui Xu
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Bradley E Treeby
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Eleanor Martin
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
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68
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Eshmuminov D, Clavien PA. Long-term dynamic ex vivo organ preservation. Nat Rev Gastroenterol Hepatol 2022; 20:267-268. [PMID: 36564518 DOI: 10.1038/s41575-022-00727-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Dilmurodjon Eshmuminov
- Wyss Zurich, ETH Zurich, University of Zurich, Zurich, Switzerland.,Department of Surgery, Swiss Hepatopancreatobiliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland
| | - Pierre-Alain Clavien
- Wyss Zurich, ETH Zurich, University of Zurich, Zurich, Switzerland. .,Department of Surgery, Swiss Hepatopancreatobiliary and Transplantation Center, University Hospital Zurich, Zurich, Switzerland.
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69
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Eskandari SK, Gaya da Costa M, Faria B, Petr V, Azzi JR, Berger SP, Seelen MAJ, Damman J, Poppelaars F. An interleukin 6-based genetic risk score strengthened with interleukin 10 polymorphisms associated with long-term kidney allograft outcomes. Am J Transplant 2022; 22 Suppl 4:45-57. [PMID: 36453708 PMCID: PMC10107952 DOI: 10.1111/ajt.17212] [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: 08/15/2022] [Revised: 10/03/2022] [Accepted: 10/21/2022] [Indexed: 12/05/2022]
Abstract
Of all kidney transplants, half are still lost in the first decade after transplantation. Here, using genetics, we probed whether interleukin 6 (IL-6) could be a target in kidney transplantation to improve graft survival. Additionally, we investigated if a genetic risk score (GRS) based on IL6 and IL10 variants could improve prognostication of graft loss. In a prospective cohort study, DNA of 1271 donor-recipient kidney transplant pairs was analyzed for the presence of IL6, IL6R, IL10, IL10RA, and IL10RB variants. These polymorphisms and their GRS were then associated with 15-year death-censored allograft survival. The C|C-genotype of the IL6 polymorphism in donor kidneys and the combined C|C-genotype in donor-recipient pairs were both associated with a reduced risk of graft loss (p = .043 and p = .042, respectively). Additionally, the GRS based on IL6, IL6R, IL10, IL10RA, and IL10RB variants was independently associated with the risk of graft loss (HR 1.53, 95%-CI [1.32-1.84]; p < .001). Notably, the GRS improved risk stratification and prediction of graft loss beyond the level of contemporary clinical markers. Our findings reveal the merits of a polygenic IL-6-based risk score strengthened with IL-10- polymorphisms for the prognostication and risk stratification of late graft failure in kidney transplantation.
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Affiliation(s)
- Siawosh K Eskandari
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Mariana Gaya da Costa
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Anesthesiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Bernardo Faria
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Nephrology R&D Group, Institute for Research and Innovation in Health (i3S), São João University Hospital Center, University of Porto, Porto, Portugal
| | - Vojtech Petr
- Department of Nephrology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Jamil R Azzi
- Transplantation Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Stefan P Berger
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marc A J Seelen
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jeffrey Damman
- Department of Pathology, Erasmus University Medical Center, Erasmus University, Rotterdam, The Netherlands
| | - Felix Poppelaars
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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70
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Dou M, Wang Y, Li Y, Lu C, He Z, Rao W. Thermomechanical responses facilitating survival mechanisms in pronounced supercooled insects. J Therm Biol 2022; 110:103352. [DOI: 10.1016/j.jtherbio.2022.103352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 11/05/2022]
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Abstract
Chronic lung disease remains a leading cause of morbidity and mortality. Given the dearth of definitive therapeutic options, there is an urgent need to augment the pool of donor organs for transplantation. One strategy entails building a lung ex vivo in the laboratory. The past decade of whole lung tissue engineering has laid a foundation of systems and strategies for this approach. Meanwhile, tremendous progress in lung stem cell biology is elucidating cues contributing to alveolar repair, and speaks to the potential of whole lung regeneration in the future. This perspective discusses the key challenges facing the field and highlights opportunities to combine insights from biology with engineering strategies to adopt a more deliberate, and ultimately successful, approach to lung engineering.
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Affiliation(s)
- Katherine L. Leiby
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520
- Yale School of Medicine, 333 Cedar St, New Haven, CT 06511
| | - Laura E. Niklason
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520
- Department of Anesthesiology, Yale School of Medicine, 333 Cedar St, New Haven, CT 06511
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Kanemitsu E, Zhao X, Iwaisako K, Inoue A, Takeuchi A, Yagi S, Masumoto H, Ohara H, Hosokawa M, Awaya T, Aoki J, Hatano E, Uemoto S, Hagiwara M. Antagonist of sphingosine 1-phosphate receptor 3 reduces cold injury of rat donor hearts for transplantation. Transl Res 2022; 255:26-36. [PMID: 36347491 DOI: 10.1016/j.trsl.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/14/2022] [Accepted: 11/01/2022] [Indexed: 11/07/2022]
Abstract
Cold storage is widely used to preserve an organ for transplantation; however, a long duration of cold storage negatively impacts graft function. Unfortunately, the mechanisms underlying cold exposure remain unclear. Based on the sphingosine-1-phosphate (S1P) signal involved in cold tolerance in hibernating mammals, we hypothesized that S1P signal blockage reduces damage from cold storage. We used an in vitro cold storage and rewarming model to evaluate cold injury and investigated the relationship between cold injury and S1P signal. Compounds affecting S1P receptors (S1PR) were screened for their protective effect in this model and its inhibitory effect on S1PRs was measured using the NanoLuc Binary Technology (NanoBiT)-β-arrestin recruitment assays. The effects of a potent antagonist were examined via heterotopic abdominal rat heart transplantation. The heart grafts were transplanted after 24-hour preservation and evaluated on day 7 after transplantation. Cold injury increased depending on the cold storage time and was induced by S1P. The most potent antagonist strongly suppressed cold injury consistent with the effect of S1P deprivation in vitro. In vivo, this antagonist enabled 24-hour preservation, and drastically improved the beating score, cardiac size, and serological markers. Pathological analysis revealed that it suppressed the interstitial edema, inflammatory cell infiltration, myocyte lesion, TUNEL-positive cell death, and fibrosis. In conclusion, S1PR3 antagonist reduced cold injury, extended the cold preservation time, and improved graft viability. Cold preservation strategies via S1P signaling may have clinical applications in organ preservation for transplantation and contribute to an increase in the donor pool.
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Affiliation(s)
- Eisho Kanemitsu
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Xiangdong Zhao
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keiko Iwaisako
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Japan
| | - Asuka Inoue
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Miyagi, Japan
| | - Akihide Takeuchi
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Developmental Biology and Functional Genomics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Shintaro Yagi
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Department of Surgery, Graduate School of Medicine, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Hidetoshi Masumoto
- Clinical Translational Research Program, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan
| | - Hiroaki Ohara
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Motoyasu Hosokawa
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomonari Awaya
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Junken Aoki
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Miyagi, Japan
| | - Etsuro Hatano
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shinji Uemoto
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan; Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Masatoshi Hagiwara
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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Gangwar L, Phatak SS, Etheridge M, Bischof JC. A guide to successful mL to L scale vitrification and rewarming. CRYO LETTERS 2022; 43:316-321. [PMID: 36629824 PMCID: PMC10217567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Cryopreservation by vitrification to achieve an "ice free" glassy state is an effective technique for preserving biomaterials including cells, tissues, and potentially even whole organs. The major challenges in cooling to and rewarming from a vitrified state remain ice crystallization and cracking/fracture. Ice crystallization can be inhibited by the use of cryoprotective agents (CPAs), though the inhibition further depends upon the rates achieved during cooling and rewarming. The minimal rate required to prevent any ice crystallization or recrystallization/devitrification in a given CPA is called the critical cooling rate (CCR) or critical warming rate (CWR), respectively. On the other hand, physical cracking is mainly related to thermomechanical stresses, which can be avoided by maintaining temperature differences below a critical threshold. In this simplified analysis, we calculate deltaT as the largest temperature difference occurring in a system during cooling or rewarming in the brittle/glassy phase. This deltaT is then used in a simple "thermal shock equation" to estimate thermal stress within the material to decide if the material is above the yield strength and to evaluate the potential for fracture failure. In this review we aimed to understand the limits of success and failure at different length scales for cryopreservation by vitrification, due to both ice crystallization and cracking. Here we use thermal modeling to help us understand the magnitude and trajectory of these challenges as we scale the biomaterial volume for a given CPA from the milliliter to liter scale. First, we solved the governing heat transfer equations in a cylindrical geometry for three common vitrification cocktails (i.e., VS55, DP6, and M22) to estimate the cooling and warming rates during convective cooling and warming and nanowarming (volumetric heating). Second, we estimated the temperature difference deltaT and compared it to a tolerable threshold (deltaTmax) based on a simplified "thermal shock" equation for the same cooling and rewarming conditions. We found, not surprisingly, that M22 achieves vitrification more easily during convective cooling and rewarming for all volumes compared to VS55 or DP6 due to its considerably lower CCR and CWR. Further, convective rewarming (boundary rewarming) leads to larger temperature differences and smaller rates compared to nanowarming (volumetric rewarming) for all CPAs with increasing failure at larger volumes. We conclude that as more and larger systems are vitrified and rewarmed with standard CPA cocktails, this work can serve as a practical guide to successful implementation based on the characteristic length (volume/surface area) of the system and the specific conditions of cooling and warming. doi.org/10.54680/fr22610110112.
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Affiliation(s)
- L Gangwar
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA
| | - S S Phatak
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA
| | - M Etheridge
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA
| | - J C Bischof
- Department of Mechanical Engineering; Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA.
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74
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Gangwar L, Phatak SS, Etheridge M, Bischof JC. Perspective: A Guide to Successful ml to L Scale Vitrification and Rewarming. CRYOLETTERS 2022. [DOI: 10.54680/fr22610110112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Cryopreservation by vitrification to achieve an "ice free" glassy state is an effective technique for preserving biomaterials including cells, tissues, and potentially even whole organs. The major challenges in cooling to and rewarming from a vitrified state remain ice crystallization
and cracking/fracture. Ice crystallization can be inhibited by the use of cryoprotective agents (CPAs), though the inhibition further depends upon the rates achieved during cooling and rewarming. The minimal rate required to prevent any ice crystallization or recrystallization/devitrification
in a given CPA is called the critical cooling rate (CCR) or critical warming rate (CWR), respectively. On the other hand, physical cracking is mainly related to thermomechanical stresses, which can be avoided by maintaining temperature differences below a critical threshold. In this simplified
analysis, we calculate ΔT as the largest temperature difference occurring in a system during cooling or rewarming in the brittle/glassy phase. This ΔT is then used in a simple "thermal shock equation" to estimate thermal stress within the material to decide if the material is above
the yield strength and to evaluate the potential for fracture failure. In this review we aimed to understand the limits of success and failure at different length scales for cryopreservation by vitrification, due to both ice crystallization and cracking. Here we use thermal modeling to help
us understand the magnitude and trajectory of these challenges as we scale the biomaterial volume for a given CPA from the milliliter to liter scale. First, we solved the governing heat transfer equations in a cylindrical geometry for three common vitrification cocktails (i. e., VS55, DP6,
and M22) to estimate the cooling and warming rates during convective cooling and warming and nanowarming (volumetric heating). Second, we estimated the temperature difference (ΔT) an d compared it to a tolerable threshold ( ΔTmax) based on a simplified "thermal shock" equation
for the same cooling and rewarming conditions . We found, not surprisingly, that M22 achieves vitrification more easily during convective cooling and rewarming for all volumes compared to VS55 or DP6 due to its considerably lower CCR and CWR. Further, convective rewarming (boundary rewarming)
leads to larger temperature differences and smaller rates compared to nanowarming (volumetric rewarming) for all CPAs with increasing failure at larger volumes. We conclude that as more and larger systems are vitrified and rewarmed with standard CPA cocktails, this work can serve as a practical
guide to successful implementation based on the characteristic length (volume/surface area) of the system and the specific conditions of cooling and warming.
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Affiliation(s)
- Lakshya Gangwar
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA
| | - Shaunak S. Phatak
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA
| | - Michael Etheridge
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA
| | - John C. Bischof
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA
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Warner RM, Brown KS, Benson JD, Eroglu A, Higgins AZ. Multiple cryoprotectant toxicity model for vitrification solution optimization. Cryobiology 2022; 108:1-9. [PMID: 36113568 PMCID: PMC9529850 DOI: 10.1016/j.cryobiol.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/05/2022] [Accepted: 09/07/2022] [Indexed: 11/03/2022]
Abstract
Vitrification is a promising cryopreservation technique for complex specimens such as tissues and organs. However, it is challenging to identify mixtures of cryoprotectants (CPAs) that prevent ice formation without exerting excessive toxicity. In this work, we developed a multi-CPA toxicity model that predicts the toxicity kinetics of mixtures containing five of the most common CPAs used in the field (glycerol, dimethyl sulfoxide (DMSO), propylene glycol, ethylene glycol, and formamide). The model accounts for specific toxicity, non-specific toxicity, and interactions between CPAs. The proposed model shows reasonable agreement with training data for single and binary CPA solutions, as well as ternary CPA solution validation data. Sloppy model analysis was used to examine the model parameters that were most important for predictions, providing clues about mechanisms of toxicity. This analysis revealed that the model terms for non-specific toxicity were particularly important, especially the non-specific toxicity of propylene glycol, as well as model terms for specific toxicity of formamide and interactions between formamide and glycerol. To demonstrate the potential for model-based design of vitrification methods, we paired the multi-CPA toxicity model with a published vitrification/devitrification model to identify vitrifiable CPA mixtures that are predicted to have minimal toxicity. The resulting optimized vitrification solution composition was a mixture of 7.4 molal glycerol, 1.4 molal DMSO, and 2.4 molal formamide. This demonstrates the potential for mathematical optimization of vitrification solution composition and sets the stage for future studies to optimize the complete vitrification process, including CPA mixture composition and CPA addition and removal methods.
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Affiliation(s)
- Ross M Warner
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA
| | - Kevin S Brown
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA; College of Pharmacy, Oregon State University, Corvallis, OR, USA
| | - James D Benson
- Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ali Eroglu
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia - Augusta University, Augusta, GA, USA
| | - Adam Z Higgins
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA.
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76
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Muller X, Rossignol G, Mohkam K, Mabrut JY. Novel strategies in liver graft preservation - The French perspective. J Visc Surg 2022; 159:389-398. [PMID: 36109331 DOI: 10.1016/j.jviscsurg.2022.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Given the increasing graft shortage, the transplant community is forced to use so called marginal liver grafts with a higher susceptibility to ischemia-reperfusion injury. This exposes the recipient to a higher risk of graft failure and post-transplant complications. While static cold storage remains the gold standard in low-risk transplant scenarios, dynamic preservation strategies may allow to improve outcomes after transplantation of marginal liver grafts. Two dynamic preservation strategies, end-ischemic hypothermic oxygenated perfusion (HOPE) and continuous normothermic machine perfusion (cNMP), have been evaluated in randomized clinical trials. The results show improved preservation of liver grafts after cNMP and reduction of post-transplant biliary complications after HOPE. In comparison to cNMP, HOPE has the advantage of requiring less logistics and expertise with the possibility to return to default static cold storage. Both strategies allow to assess graft viability prior to transplantation and may thus contribute to optimizing graft selection and reducing discard rates. The use of dynamic preservation is rapidly increasing in France and results from a national randomized trial on the use of HOPE in marginal grafts will soon be available. Future applications should focus on controlled donation after circulatory death liver grafts, split grafts and graft treatment during perfusion. The final aim of dynamic liver graft preservation is to improve post-transplant outcomes, increase the number of transplanted grafts and allow expansion of transplant indications.
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Affiliation(s)
- X Muller
- Department of General Surgery and Liver Transplantation, Croix-Rousse University Hospital, Hospices Civils de Lyon, Lyon, France; The Lyon Cancer Research Centre, Inserm U1052 UMR 5286, Lyon, France; ED 340 BMIC, Claude-Bernard Lyon 1 University, 69622 Villeurbanne, France.
| | - G Rossignol
- Department of General Surgery and Liver Transplantation, Croix-Rousse University Hospital, Hospices Civils de Lyon, Lyon, France; The Lyon Cancer Research Centre, Inserm U1052 UMR 5286, Lyon, France; ED 340 BMIC, Claude-Bernard Lyon 1 University, 69622 Villeurbanne, France; Department of Pediatric Surgery and Liver Transplantation, Femme-Mère-Enfant University Hospital, Hospices Civils de Lyon, Lyon, France
| | - K Mohkam
- Department of General Surgery and Liver Transplantation, Croix-Rousse University Hospital, Hospices Civils de Lyon, Lyon, France; The Lyon Cancer Research Centre, Inserm U1052 UMR 5286, Lyon, France; Department of Pediatric Surgery and Liver Transplantation, Femme-Mère-Enfant University Hospital, Hospices Civils de Lyon, Lyon, France
| | - J Y Mabrut
- Department of General Surgery and Liver Transplantation, Croix-Rousse University Hospital, Hospices Civils de Lyon, Lyon, France; The Lyon Cancer Research Centre, Inserm U1052 UMR 5286, Lyon, France
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Wang Y, Lei B, Pan Y, Su C, Wang W, Zhang H, Xia F, Zhu P, He S, Cheng Q. α-Connexin Carboxyl Terminal Peptide 1 Attenuates Ischemia-Reperfusion Injury in Liver Transplantation With Extended Cold Preservation by Stabilizing Cell Junctions in Mice. Transplant Proc 2022; 54:2364-2373. [PMID: 36184342 DOI: 10.1016/j.transproceed.2022.08.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022]
Affiliation(s)
- Yuefan Wang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, China
| | - Biao Lei
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, Guangxi, China; Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Nanning, Guangxi, China
| | - Yonglong Pan
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, China
| | - Chen Su
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, China
| | - Weijian Wang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, China
| | - Haoquan Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, China
| | - Feng Xia
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, China
| | - Peng Zhu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, China; Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, Hubei, China; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China.
| | - Songqing He
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Ministry of Education, Nanning, Guangxi, China; Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Nanning, Guangxi, China.
| | - Qi Cheng
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, China; Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, Hubei, China; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China.
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Wakabayashi T, Kaneko M, Nakai T, Horie M, Fujimoto H, Takahashi M, Tanoue S, Ito A. Nanowarming of vitrified pancreatic islets as a cryopreservation technology for transplantation. Bioeng Transl Med 2022. [DOI: 10.1002/btm2.10416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Taisei Wakabayashi
- Department of Chemical Systems Engineering, School of Engineering Nagoya University Nagoya Japan
| | - Masahiro Kaneko
- Department of Chemical Systems Engineering, School of Engineering Nagoya University Nagoya Japan
| | - Tomoki Nakai
- Department of Chemical Systems Engineering, School of Engineering Nagoya University Nagoya Japan
| | - Masanobu Horie
- Radioisotope Research Center, Agency of Health, Safety and Environment Kyoto University Kyoto Japan
| | - Hiroyuki Fujimoto
- Radioisotope Research Center, Agency of Health, Safety and Environment Kyoto University Kyoto Japan
| | | | - Shota Tanoue
- Technical Department Dai‐Ichi High Frequency Co., Ltd Kawasaki Japan
| | - Akira Ito
- Department of Chemical Systems Engineering, School of Engineering Nagoya University Nagoya Japan
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Wang Z, Valenzuela C, Wu J, Chen Y, Wang L, Feng W. Bioinspired Freeze-Tolerant Soft Materials: Design, Properties, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201597. [PMID: 35971186 DOI: 10.1002/smll.202201597] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 07/12/2022] [Indexed: 06/15/2023]
Abstract
In nature, many biological organisms have developed the exceptional antifreezing ability to survive in extremely cold environments. Inspired by the freeze resistance of these organisms, researchers have devoted extensive efforts to develop advanced freeze-tolerant soft materials and explore their potential applications in diverse areas such as electronic skin, soft robotics, flexible energy, and biological science. Herein, a comprehensive overview on the recent advancement of freeze-tolerant soft materials and their emerging applications from the perspective of bioinspiration and advanced material engineering is provided. First, the mechanisms underlying the freeze tolerance of cold-enduring biological organisms are introduced. Then, engineering strategies for developing antifreezing soft materials are summarized. Thereafter, recent advances in freeze-tolerant soft materials for different technological applications such as smart sensors and actuators, energy harvesting and storage, and cryogenic medical applications are presented. Finally, future challenges and opportunities for the rapid development of bioinspired freeze-tolerant soft materials are discussed.
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Affiliation(s)
- Zhiyong Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore
| | - Cristian Valenzuela
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Jianhua Wu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Yuanhao Chen
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Ling Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, China
| | - Wei Feng
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, China
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Coskun A, Yegen C, Arbak S, Attaallah W, Gunal O, Elmas MA, Ucal Y, Can O, Baş B, Yildirim Z, Seckin I, Demirci S, Serteser M, Ozpinar A, Belce A, Basdemir G, Moldur DE, Derelioglu EI, Yozgatli TK, Erdemgil Y, Unsal I. Melatonin in preservation solutions prevents ischemic injury in rat kidneys. PLoS One 2022; 17:e0273921. [PMID: 36044512 PMCID: PMC9432748 DOI: 10.1371/journal.pone.0273921] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 08/17/2022] [Indexed: 11/18/2022] Open
Abstract
Transplantation is lifesaving and the most effective treatment for end-stage organ failure. The transplantation success depends on the functional preservation of organs prior to transplantation. Currently, the University of Wisconsin (UW) and histidine-tryptophan-ketoglutarate (HTK) are the most commonly used preservation solutions. Despite intensive efforts, the functional preservation of solid organs prior to transplantation is limited to hours. In this study, we modified the UW solution containing components from both the UW and HTK solutions and analyzed their tissue-protective effect against ischemic injury. The composition of the UW solution was changed by reducing hydroxyethyl starch concentration and adding Histidine/Histidine-HCl which is the main component of HTK solution. Additionally, the preservation solutions were supplemented with melatonin and glucosamine. The protective effects of the preservation solutions were assessed by biochemical and microscopical analysis at 2, 10, 24, and 72 h after preserving the rat kidneys with static cold storage. Lactate dehydrogenase (LDH) activity in preservation solutions was measured at 2, 10, 24, and 72. It was not detectable at 2 h of preservation in all groups and 10 h of preservation in modified UW+melatonin (mUW-m) and modified UW+glucosamine (mUW-g) groups. At the 72nd hour, the lowest LDH activity (0.91 IU/g (0.63–1.17)) was measured in the mUW-m group. In comparison to the UW group, histopathological damage score was low in modified UW (mUW), mUW-m, and mUW-g groups at 10, 24, and 72 hours. The mUW-m solution at low temperature was an effective and suitable solution to protect renal tissue for up to 72 h.
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Affiliation(s)
- Abdurrahman Coskun
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
- Acibadem Labmed Clinical Laboratories, Istanbul, Turkey
- * E-mail:
| | - Cumhur Yegen
- Department of General Surgery, Marmara University, School of Medicine, Istanbul, Turkey
| | - Serap Arbak
- Department of Histology and Embryology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Wafi Attaallah
- Department of General Surgery, Marmara University, School of Medicine, Istanbul, Turkey
| | - Omer Gunal
- Department of General Surgery, Marmara University, School of Medicine, Istanbul, Turkey
| | - Merve Acikel Elmas
- Department of Histology and Embryology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Yasemin Ucal
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ozge Can
- Faculty of Engineering, Department of Medical Engineering, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Banu Baş
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Zeynep Yildirim
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ismail Seckin
- Department of Histology and Embryology, Istanbul University Cerrahpasa, Cerrahpasa School of Medicine, Istanbul, Turkey
| | - Sibel Demirci
- Department of Histology and Embryology, Biruni University, School of Medicine, Istanbul, Turkey
| | - Mustafa Serteser
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
- Acibadem Labmed Clinical Laboratories, Istanbul, Turkey
| | - Aysel Ozpinar
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ahmet Belce
- Department of Medical Biochemistry, Biruni University, School of Medicine, Istanbul, Turkey
| | - Gulcin Basdemir
- Department of Pathology, Memorial Hospital, Istanbul, Turkey
| | - Derya Emel Moldur
- Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | | | | | - Yigit Erdemgil
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ibrahim Unsal
- Acibadem Labmed Clinical Laboratories, Istanbul, Turkey
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81
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Umar BU, Rahman S, Dutta S, Islam T, Nusrat N, Chowdhury K, Binti Wan Ahmad Fakuradzi WFS, Haque M. Management of Atopic Dermatitis: The Role of Tacrolimus. Cureus 2022; 14:e28130. [PMID: 35990561 PMCID: PMC9387362 DOI: 10.7759/cureus.28130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Atopic dermatitis (AD) is a long-lasting inflammatory dermatological condition characterized by itchy, eczematous, sparsely tiny blisters that hold a clear watery substance. Additionally, the diseased skin can suppurate, occasionally with weeping with thickening of the affected skin. This is considered one of the top skin disorders involving both children and adult populations globally. The principal therapeutic intervention for AD is long-standing topical glucocorticoids, which have been used for several decades. Corticosteroid therapy brings several adverse drug effects (ADRs), including irreversible skin atrophy. Tacrolimus belongs to the class of calcineurin inhibitors, which is a type of immunomodulator possessing promising efficacy in treating AD. Topical tacrolimus is an effective and safe non-corticosteroid substitute treatment for AD. We reviewed the available literature to compare and institute the safety, efficacy, and effectiveness of tacrolimus when equated to corticosteroid therapy in managing AD.
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82
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Temperature-pressure correlations of cryoprotective additives for the design of constant volume cryopreservation protocols. Cryobiology 2022; 108:42-50. [PMID: 35987387 DOI: 10.1016/j.cryobiol.2022.08.001] [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: 03/26/2022] [Revised: 07/15/2022] [Accepted: 08/05/2022] [Indexed: 11/22/2022]
Abstract
In the recent years, the use of constant volume (isochoric) cryopreservation, in medicine and biotechnology has captured more attention from the research community and now there is an increasing interest in the use of this new technology. It has been established that the thermodynamics of isochoric freezing is different from that of isobaric (constant pressure) freezing. This study provides researchers in the field experimental results for various compositions of cryoprotectants commonly used in isobaric cryopreservation, in terms of temperature-pressure-molar concentration correlation. It also reveals experimental isochoric thermodynamic data for the following cryoprotectants, commonly used in isobaric cryopreservation: dimethyl sulfoxide, trehalose, ethylene glycol and diethylene glycol. Currently, the data on the pressure-temperature correlation in an isochoric system of cryoprotectants used in isobaric cryopreservation is not available. Our new experimental results indicate that the studied concentrations for each of the CPAs, lower and expands the range of temperatures in which cryopreservation by isochoric freezing can be safely practiced. We consider that these experiments will aid researchers developing new isochoric cryopreservation protocols.
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83
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Oktay B, Ahlatcıoğlu Özerol E, Sahin A, Gunduz O, Ustundag CB. Production and Characterization of PLA/HA/GO Nanocomposite Scaffold. ChemistrySelect 2022. [DOI: 10.1002/slct.202200697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Busra Oktay
- Department of Bioengineering Faculty of Chemical and Metallurgical Engineering Yildiz Technical University Istanbul 34220 Turkey
| | - Esma Ahlatcıoğlu Özerol
- Department of Bioengineering Faculty of Chemical and Metallurgical Engineering Yildiz Technical University Istanbul 34220 Turkey
| | - Ali Sahin
- Department of Biochemistry, Faculty of Medicine Marmara University Istanbul 34854 Turkey
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM) Marmara University Istanbul 34730 Turkey
- Department of Metallurgical and Materials Engineering Faculty of Technology Marmara University Istanbul 34730 Turkey
| | - Cem Bulent Ustundag
- Department of Bioengineering Faculty of Chemical and Metallurgical Engineering Yildiz Technical University Istanbul 34220 Turkey
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84
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Ren S, Shu Z, Pan J, Wang Z, Ma R, Peng J, Chen M, Gao D. Single-Mode Electromagnetic Resonance Rewarming for the Cryopreservation of Samples with Large Volumes: A Numerical and Experimental Study. Biopreserv Biobank 2022; 20:317-322. [PMID: 35984939 DOI: 10.1089/bio.2022.0107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Rapid and uniform rewarming has been proved to be beneficial, and sometimes indispensable for the survival of cryopreserved biomaterials, inhibiting ice-recrystallization-devitrification and thermal stress-induced fracture (especially in large samples). To date, the convective water bath remains the gold standard rewarming method for small samples in the clinical settings, but it failed in the large samples (e.g., cryopreserved tissues and organs) due to damage caused by the slow and nonuniform heating. A single-mode electromagnetic resonance (SMER) system was developed to achieve ultrafast and uniform rewarming for large samples. In this study, we investigated the heating effects of the SMER system and compared the heating performance with water bath and air warming. A numerical model was established to further analyze the temperature change and distribution at different time points during the rewarming process. Overall, the SMER system achieved rapid heating at 331.63 ± 8.59°C min-1 while limiting the maximum thermal gradient to <9°C min-1, significantly better than the other two warming methods. The experimental results were highly consistent, indicating SMER is a promising rewarming technology for the successful cryopreservation of large biosamples.
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Affiliation(s)
- Shen Ren
- Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA.,Department of Mechanical Engineering, Seattle University, Seattle, Washington, USA
| | - Zhiquan Shu
- Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA.,School of Engineering and Technology, University of Washington-Tacoma, Tacoma, Washington, USA
| | - Jiaji Pan
- College of Engineering and Design, Hunan Normal University, Changsha, Hunan, China.,State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, China
| | - Ziyuan Wang
- Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA
| | - Ruidong Ma
- Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA
| | - Ji Peng
- Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA
| | - Ming Chen
- Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA
| | - Dayong Gao
- Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA
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85
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Antarianto RD, Mahmood A, Giselvania A, Asri Dewi AAP, Gustinanda J, Pawitan JA. Inventing Engineered Organoids for end-stage liver failure patients. J Mol Histol 2022; 53:611-621. [PMID: 35882727 PMCID: PMC9374785 DOI: 10.1007/s10735-022-10085-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/28/2022] [Indexed: 11/30/2022]
Abstract
End-stage liver disease (ESLD) is a term used clinically in reference to a group of liver diseases with liver transplantation as the choice of treatment. Due to the limitations of liver transplantation, alternative treatments are needed. The use of primary human hepatocytes represents a valid alternative treatment, but the limitations related to hepatocyte quality, viability, function, conservation, and storage need to be overcome. Transplanted hepatocytes have only been followed for 6–9 months. Therefore, long-term causes of failures are not yet established, including rejection, apoptosis, or other causes. Other alternative therapies to replace liver transplantation include plasmapheresis, hemodiafiltration, and artificial livers. Unfortunately, these methods are highly limited due to availability, high cost, anaphylaxis reaction, development-deposition of immune-complexes, and restricted functionality. Liver organoids, which utilize stem cells instead of ‘impractical’ adult hepatocytes, may be a solution for the development of a complex bioartificial liver. Recent studies have explored the benefits of differentiating mature hepatocytes from stem cells inside a bioreactor. When the use of human-induced Hepatocytes (hiHeps) was investigated in mouse and pig models of liver failure, liver failure markers were decreased, hepatocyte function indicated by albumin synthesis improved, and survival time increased. Bioartificial liver treatment may decrease the infiltration of inflammatory cells into liver tissue by down-regulating pro-inflammatory cytokines.
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Affiliation(s)
- Radiana D Antarianto
- Department of Histology Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia.
- Stem cell and tissue engineering research cluster IMERI UI, Jakarta, Indonesia.
| | - Amer Mahmood
- Stem Cell Unit, Department of Anatomy, King Saud University, Riyadh, Saudi Arabia
| | - Angela Giselvania
- Stem Cell Unit, Department of Anatomy, King Saud University, Riyadh, Saudi Arabia
- Department of Radiotherapy RS Cipto Mangunkusumo, Jakarta, Indonesia
| | - Ayu Aa Prima Asri Dewi
- Doctoral Program in Biomedical Science Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia
- Department of Histology, Fakultas Kedokteran dan Ilmu Kesehatan Universitas Warmadewa, Bali, Indonesia
| | - Jatmiko Gustinanda
- Master Program in Biomedical Science Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia
| | - Jeanne Adiwinata Pawitan
- Department of Histology Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia
- Stem cell and tissue engineering research cluster IMERI UI, Jakarta, Indonesia
- Undergraduate Medicine Program Fakultas Kedokteran Universitas Indonesia, Jakarta Pusat, Indonesia
- Integrated Service Unit Stem Cells RS Cipto Mangunkusumo, Jakarta, Indonesia
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86
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Jain P, Kathuria H, Dubey N. Advances in 3D bioprinting of tissues/organs for regenerative medicine and in-vitro models. Biomaterials 2022; 287:121639. [PMID: 35779481 DOI: 10.1016/j.biomaterials.2022.121639] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 11/24/2022]
Abstract
Tissue/organ shortage is a major medical challenge due to donor scarcity and patient immune rejections. Furthermore, it is difficult to predict or mimic the human disease condition in animal models during preclinical studies because disease phenotype differs between humans and animals. Three-dimensional bioprinting (3DBP) is evolving into an unparalleled multidisciplinary technology for engineering three-dimensional (3D) biological tissue with complex architecture and composition. The technology has emerged as a key driver by precise deposition and assembly of biomaterials with patient's/donor cells. This advancement has aided in the successful fabrication of in vitro models, preclinical implants, and tissue/organs-like structures. Here, we critically reviewed the current state of 3D-bioprinting strategies for regenerative therapy in eight organ systems, including nervous, cardiovascular, skeletal, integumentary, endocrine and exocrine, gastrointestinal, respiratory, and urinary systems. We also focus on the application of 3D bioprinting to fabricated in vitro models to study cancer, infection, drug testing, and safety assessment. The concept of in situ 3D bioprinting is discussed, which is the direct printing of tissues at the injury or defect site for reparative and regenerative therapy. Finally, issues such as scalability, immune response, and regulatory approval are discussed, as well as recently developed tools and technologies such as four-dimensional and convergence bioprinting. In addition, information about clinical trials using 3D printing has been included.
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Affiliation(s)
- Pooja Jain
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, Maharashtra, India; Faculty of Dentistry, National University of Singapore, Singapore
| | - Himanshu Kathuria
- Department of Pharmacy, National University of Singapore, 117543, Singapore; Nusmetic Pte Ltd, Makerspace, I4 Building, 3 Research Link Singapore, 117602, Singapore.
| | - Nileshkumar Dubey
- Faculty of Dentistry, National University of Singapore, Singapore; ORCHIDS: Oral Care Health Innovations and Designs Singapore, National University of Singapore, Singapore.
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87
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Chen J, Wu X, Zhang Y, Xu Y, Ge H, Ning X. Bioinspired All-in-One Three-Dimensional Dynamic CellMatrix Improves the Manufacture of Therapeutically Qualified Cells for Cell Therapy. NANO LETTERS 2022; 22:5723-5734. [PMID: 35787105 DOI: 10.1021/acs.nanolett.2c00760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Despite the great promise, cell therapy still faces practical challenges because of the scarcity of a reliable cell source. Herein, a bioinspired 3D dynamic culture system (CellMatrix) with rational structure, composite and function, was developed for improving cell supply. CellMatrix was composed of unique core-shell fibers with a core of black phosphorus-incorporated fibroin and a shell of sericin, which together formed a 3D silkworm cocoon-mimicking structure via a bottom-up fabrication technique. CellMatrix not only provided optimal engineered biomimetic niche to facilitate cell growth but exhibited good photothermal conversion to dynamically regulate cell fates. Importantly, cell-CellMatrix construct could be directly implanted into defected tissues and improved tissue remodeling. Meanwhile, CellMatrix displayed good ice resistance and thermal conductivity, which maximally maintained cell viability and proliferation after the freeze-thawing process, allowing for storing precious cells and cell-CellMatrix construct. Thus, CellMatrix represents an all-in-one biomimetic platform for the culture-production-storage of therapeutically qualified cells.
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Affiliation(s)
- Jianmei Chen
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
| | - Xiaotong Wu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
| | - Yu Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
| | - Yurui Xu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
| | - Haixiong Ge
- National Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Xinghai Ning
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
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88
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Doryab A, Schmid O. Bioactive Cell-Derived ECM Scaffold Forms a Unique Cellular Microenvironment for Lung Tissue Engineering. Biomedicines 2022; 10:biomedicines10081791. [PMID: 35892691 PMCID: PMC9394345 DOI: 10.3390/biomedicines10081791] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 12/11/2022] Open
Abstract
Chronic lung diseases are one of the leading causes of death worldwide. Lung transplantation is currently the only causal therapeutic for lung diseases, which is restricted to end-stage disease and limited by low access to donor lungs. Lung tissue engineering (LTE) is a promising approach to regenerating a replacement for at least a part of the damaged lung tissue. Currently, lung regeneration is limited to a simplified local level (e.g., alveolar−capillary barrier) due to the sophisticated and complex structure and physiology of the lung. Here, we introduce an extracellular matrix (ECM)-integrated scaffold using a cellularization−decellularization−recellularization technique. This ECM-integrated scaffold was developed on our artificial co-polymeric BETA (biphasic elastic thin for air−liquid interface cell culture conditions) scaffold, which were initially populated with human lung fibroblasts (IMR90 cell line), as the main generator of ECM proteins. Due to the interconnected porous structure of the thin (<5 µm) BETA scaffold, the cells can grow on and infiltrate into the scaffold and deposit their own ECM. After a mild decellularization procedure, the ECM proteins remained on the scaffold, which now closely mimicked the cellular microenvironment of pulmonary cells more realistically than the plain artificial scaffolds. We assessed several decellularization methods and found that 20 mM NH4OH and 0.1% Triton X100 with subsequent DNase treatment completely removed the fibroblasts (from the first cellularization) and maintains collagen I and IV as the key ECM proteins on the scaffold. We also showed the repopulation of the primary fibroblast from human (without chronic lung disease (non-CLD) donors) and human bronchial epithelial (16HBE14o−) cells on the ECM-integrated BETA scaffold. With this technique, we developed a biomimetic scaffold that can mimic both the physico-mechanical properties and the native microenvironment of the lung ECM. The results indicate the potential of the presented bioactive scaffold for LTE application.
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89
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Abstract
Cryopreservation of cells and biologics underpins all biomedical research from routine sample storage to emerging cell-based therapies, as well as ensuring cell banks provide authenticated, stable and consistent cell products. This field began with the discovery and wide adoption of glycerol and dimethyl sulfoxide as cryoprotectants over 60 years ago, but these tools do not work for all cells and are not ideal for all workflows. In this Review, we highlight and critically review the approaches to discover, and apply, new chemical tools for cryopreservation. We summarize the key (and complex) damage pathways during cellular cryopreservation and how each can be addressed. Bio-inspired approaches, such as those based on extremophiles, are also discussed. We describe both small-molecule-based and macromolecular-based strategies, including ice binders, ice nucleators, ice nucleation inhibitors and emerging materials whose exact mechanism has yet to be understood. Finally, looking towards the future of the field, the application of bottom-up molecular modelling, library-based discovery approaches and materials science tools, which are set to transform cryopreservation strategies, are also included.
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Affiliation(s)
| | - Matthew I. Gibson
- Department of Chemistry, University of Warwick, Coventry, UK
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, UK
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90
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Tessier SN, de Vries RJ, Pendexter CA, Cronin SEJ, Ozer S, Hafiz EOA, Raigani S, Oliveira-Costa JP, Wilks BT, Lopera Higuita M, van Gulik TM, Usta OB, Stott SL, Yeh H, Yarmush ML, Uygun K, Toner M. Partial freezing of rat livers extends preservation time by 5-fold. Nat Commun 2022; 13:4008. [PMID: 35840553 PMCID: PMC9287450 DOI: 10.1038/s41467-022-31490-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 06/20/2022] [Indexed: 02/04/2023] Open
Abstract
The limited preservation duration of organs has contributed to the shortage of organs for transplantation. Recently, a tripling of the storage duration was achieved with supercooling, which relies on temperatures between -4 and -6 °C. However, to achieve deeper metabolic stasis, lower temperatures are required. Inspired by freeze-tolerant animals, we entered high-subzero temperatures (-10 to -15 °C) using ice nucleators to control ice and cryoprotective agents (CPAs) to maintain an unfrozen liquid fraction. We present this approach, termed partial freezing, by testing gradual (un)loading and different CPAs, holding temperatures, and storage durations. Results indicate that propylene glycol outperforms glycerol and injury is largely influenced by storage temperatures. Subsequently, we demonstrate that machine perfusion enhancements improve the recovery of livers after freezing. Ultimately, livers that were partially frozen for 5-fold longer showed favorable outcomes as compared to viable controls, although frozen livers had lower cumulative bile and higher liver enzymes.
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Affiliation(s)
- Shannon N. Tessier
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA
| | - Reinier J. de Vries
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA ,grid.7177.60000000084992262Department of Surgery, Amsterdam University Medical Centers – location AMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Casie A. Pendexter
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA ,Present Address: Sylvatica Biotech Inc., North Charleston, SC USA
| | - Stephanie E. J. Cronin
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA
| | - Sinan Ozer
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA
| | - Ehab O. A. Hafiz
- grid.420091.e0000 0001 0165 571XDepartment of Electron Microscopy Research, Theodor Bilharz Research Institute, Giza, Egypt
| | - Siavash Raigani
- grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA ,grid.32224.350000 0004 0386 9924Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA USA
| | - Joao Paulo Oliveira-Costa
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.38142.3c000000041936754XDepartment of Medicine and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA USA
| | - Benjamin T. Wilks
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA
| | - Manuela Lopera Higuita
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA
| | - Thomas M. van Gulik
- grid.7177.60000000084992262Department of Surgery, Amsterdam University Medical Centers – location AMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Osman Berk Usta
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA
| | - Shannon L. Stott
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.38142.3c000000041936754XDepartment of Medicine and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA USA
| | - Heidi Yeh
- grid.32224.350000 0004 0386 9924Department of Surgery, Division of Transplantation, Massachusetts General Hospital, Boston, MA USA
| | - Martin L. Yarmush
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA ,grid.430387.b0000 0004 1936 8796Department of Biomedical Engineering, Rutgers University, Piscataway, NJ USA
| | - Korkut Uygun
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA
| | - Mehmet Toner
- grid.38142.3c000000041936754XCenter for Engineering in Medicine and Surgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA USA ,grid.415829.30000 0004 0449 5362Shriners Hospitals for Children Boston, Boston, MA USA
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91
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Gotlieb N, Azhie A, Sharma D, Spann A, Suo NJ, Tran J, Orchanian-Cheff A, Wang B, Goldenberg A, Chassé M, Cardinal H, Cohen JP, Lodi A, Dieude M, Bhat M. The promise of machine learning applications in solid organ transplantation. NPJ Digit Med 2022; 5:89. [PMID: 35817953 PMCID: PMC9273640 DOI: 10.1038/s41746-022-00637-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 06/24/2022] [Indexed: 11/16/2022] Open
Abstract
Solid-organ transplantation is a life-saving treatment for end-stage organ disease in highly selected patients. Alongside the tremendous progress in the last several decades, new challenges have emerged. The growing disparity between organ demand and supply requires optimal patient/donor selection and matching. Improvements in long-term graft and patient survival require data-driven diagnosis and management of post-transplant complications. The growing abundance of clinical, genetic, radiologic, and metabolic data in transplantation has led to increasing interest in applying machine-learning (ML) tools that can uncover hidden patterns in large datasets. ML algorithms have been applied in predictive modeling of waitlist mortality, donor–recipient matching, survival prediction, post-transplant complications diagnosis, and prediction, aiming to optimize immunosuppression and management. In this review, we provide insight into the various applications of ML in transplant medicine, why these were used to evaluate a specific clinical question, and the potential of ML to transform the care of transplant recipients. 36 articles were selected after a comprehensive search of the following databases: Ovid MEDLINE; Ovid MEDLINE Epub Ahead of Print and In-Process & Other Non-Indexed Citations; Ovid Embase; Cochrane Database of Systematic Reviews (Ovid); and Cochrane Central Register of Controlled Trials (Ovid). In summary, these studies showed that ML techniques hold great potential to improve the outcome of transplant recipients. Future work is required to improve the interpretability of these algorithms, ensure generalizability through larger-scale external validation, and establishment of infrastructure to permit clinical integration.
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Affiliation(s)
- Neta Gotlieb
- Ajmera Transplant Program, University Health Network, Toronto, ON, Canada.,Department of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Amirhossein Azhie
- Ajmera Transplant Program, University Health Network, Toronto, ON, Canada
| | - Divya Sharma
- Department of Gastroenterology, Toronto General Hospital Research Institute, Toronto, ON, Canada
| | - Ashley Spann
- Division of Gastroenterology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nan-Ji Suo
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Jason Tran
- Ajmera Transplant Program, University Health Network, Toronto, ON, Canada
| | - Ani Orchanian-Cheff
- Library and Information Services, University Health Network, Toronto, ON, Canada
| | - Bo Wang
- Vector Institute for Artificial Intelligence, Toronto, ON, Canada
| | - Anna Goldenberg
- Vector Institute for Artificial Intelligence, Toronto, ON, Canada
| | - Michael Chassé
- Department of Medicine (Critical Care), University of Montreal Hospital, Montréal, QC, Canada.,Canadian Donation and Transplantation Research Program, Data and Innovation Expert Group, Toronto, ON, Canada
| | - Heloise Cardinal
- Canadian Donation and Transplantation Research Program, Data and Innovation Expert Group, Toronto, ON, Canada.,Centre hospitalier de l'Université de Montréal Research Center, Université de Montréal, Montréal, QC, Canada
| | - Joseph Paul Cohen
- Canadian Donation and Transplantation Research Program, Data and Innovation Expert Group, Toronto, ON, Canada.,Center for Artificial Intelligence in Medicine & Imaging, Stanford University, Stanford, CA, USA.,Mila, Quebec Artificial Intelligence Institute, Montréal, QC, Canada
| | - Andrea Lodi
- Canadian Donation and Transplantation Research Program, Data and Innovation Expert Group, Toronto, ON, Canada.,Canada Excellence Research Chair, Polytechnique Montréal, Montréal, QC, Canada
| | - Melanie Dieude
- Canadian Donation and Transplantation Research Program, Data and Innovation Expert Group, Toronto, ON, Canada.,Centre hospitalier de l'Université de Montréal Research Center, Université de Montréal, Montréal, QC, Canada.,Department Microbiology, Infectiology and Immunology, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada.,Héma-Québec, Montréal, QC, Canada
| | - Mamatha Bhat
- Ajmera Transplant Program, University Health Network, Toronto, ON, Canada. .,Canadian Donation and Transplantation Research Program, Data and Innovation Expert Group, Toronto, ON, Canada. .,Division of Gastroenterology and Hepatology, Department of Medicine, University of Toronto, Toronto, ON, Canada.
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92
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Cao Y, Chang T, Fang C, Zhang Y, Liu H, Zhao G. Inhibition Effect of Ti 3C 2T x MXene on Ice Crystals Combined with Laser-Mediated Heating Facilitates High-Performance Cryopreservation. ACS NANO 2022; 16:8837-8850. [PMID: 35696325 DOI: 10.1021/acsnano.1c10221] [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] [Indexed: 06/15/2023]
Abstract
The phenomena of ice formation and growth are of great importance for climate science, regenerative medicine, cryobiology, and food science. Hence, how to control ice formation and growth remains a challenge in these fields and attracts great interest from widespread researchers. Herein, the ice regulation ability of the two-dimensional MXene Ti3C2Tx in both the cooling and thawing processes is explored. Molecularly speaking, the ice growth inhibition mechanism of Ti3C2Tx MXene is ascribed to the formation of hydrogen bonds between functional groups of -O-, -OH, and -F distributed on the surface of Ti3C2Tx and ice/water molecules, which was elucidated by the molecular dynamics simulation method. In the cooling process, Ti3C2Tx can decrease the supercooling degree and inhibit the sharp edge morphology of ice crystals. Moreover, taking advantage of the outstanding photothermal conversion property of Ti3C2Tx, rapid ice melting can be achieved, thus reducing the phenomena of devitrification and ice recrystallization. Based on the ice restriction performance of Ti3C2Tx mentioned above, Ti3C2Tx is applied for cryopreservation of stem-cell-laden hydrogel constructs. The results show that Ti3C2Tx can reduce cryodamage to stem cells induced by ice injury in both the cooling and thawing processes and finally increase the cell viability from 38.4% to 80.9%. In addition, Ti3C2Tx also shows synergetic antibacterial activity under laser irradiation, thus realizing sterile cryopreservation of stem cells. Overall, this work explores the ice inhibition performance of Ti3C2Tx, elucidates the physical mechanism, and further achieves application of Ti3C2Tx in the field of cell cryopreservation.
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Affiliation(s)
- Yuan Cao
- Department of Blood Transfusion, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Tie Chang
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China
| | - Chao Fang
- Department of Blood Transfusion, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Yuanyuan Zhang
- Department of Blood Transfusion, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Huilan Liu
- Department of Blood Transfusion, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Gang Zhao
- Department of Blood Transfusion, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China
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93
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Brockbank KGM, Bischof JC, Chen Z, Greene ED, Gao Z, Campbell LH. Ice Control during Cryopreservation of Heart Valves and Maintenance of Post-Warming Cell Viability. Cells 2022; 11:cells11121856. [PMID: 35740986 PMCID: PMC9220912 DOI: 10.3390/cells11121856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/03/2022] [Accepted: 06/04/2022] [Indexed: 01/27/2023] Open
Abstract
Heart valve cryopreservation was employed as a model for the development of complex tissue preservation methods based upon vitrification and nanowarming. Porcine heart valves were loaded with cryoprotectant formulations step wise and vitrified in 1−30 mL cryoprotectant formulations ± Fe nanoparticles ± 0.6 M disaccharides, cooled to −100 °C, and stored at −135 °C. Nanowarming was performed in a single ~100 s step by inductive heating within a magnetic field. Controls consisted of fresh and convection-warmed vitrified heart valves without nanoparticles. After washing, cell viability was assessed by metabolic assay. The nanowarmed leaflets were well preserved, with a viability similar to untreated fresh leaflets over several days post warming. The convection-warmed leaflet viability was not significantly different than that of the nanowarmed leaflets immediately after rewarming; however, a significantly higher nanowarmed leaflet viability (p < 0.05) was observed over time in vitro. In contrast, the associated artery and fibrous cardiac muscle were at best 75% viable, and viability decreased over time in vitro. Supplementation of lower concentration cryoprotectant formulations with disaccharides promoted viability. Thicker tissues benefited from longer-duration cryoprotectant loading steps. The best outcomes included a post-warming incubation step with α-tocopherol and an apoptosis inhibitor, Q-VD-OPH. This work demonstrates progress in the control of ice formation and cytotoxicity hurdles for the preservation of complex tissues.
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Affiliation(s)
- Kelvin G. M. Brockbank
- Tissue Testing Technologies LLC, 2231 Technical Parkway, Suite A, North Charleston, SC 29406, USA; (Z.C.); (E.D.G.); (L.H.C.)
- Department of Bioengineering, Clemson University, Charleston, SC 29425, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
- Correspondence: ; Tel.: +1-843-514-6164
| | - John C. Bischof
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA; (J.C.B.); (Z.G.)
| | - Zhenzhen Chen
- Tissue Testing Technologies LLC, 2231 Technical Parkway, Suite A, North Charleston, SC 29406, USA; (Z.C.); (E.D.G.); (L.H.C.)
| | - Elizabeth D. Greene
- Tissue Testing Technologies LLC, 2231 Technical Parkway, Suite A, North Charleston, SC 29406, USA; (Z.C.); (E.D.G.); (L.H.C.)
| | - Zhe Gao
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA; (J.C.B.); (Z.G.)
| | - Lia H. Campbell
- Tissue Testing Technologies LLC, 2231 Technical Parkway, Suite A, North Charleston, SC 29406, USA; (Z.C.); (E.D.G.); (L.H.C.)
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94
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Ashammakhi N, GhavamiNejad A, Tutar R, Fricker A, Roy I, Chatzistavrou X, Hoque Apu E, Nguyen KL, Ahsan T, Pountos I, Caterson EJ. Highlights on Advancing Frontiers in Tissue Engineering. TISSUE ENGINEERING. PART B, REVIEWS 2022; 28:633-664. [PMID: 34210148 PMCID: PMC9242713 DOI: 10.1089/ten.teb.2021.0012] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/15/2021] [Indexed: 01/05/2023]
Abstract
The field of tissue engineering continues to advance, sometimes in exponential leaps forward, but also sometimes at a rate that does not fulfill the promise that the field imagined a few decades ago. This review is in part a catalog of success in an effort to inform the process of innovation. Tissue engineering has recruited new technologies and developed new methods for engineering tissue constructs that can be used to mitigate or model disease states for study. Key to this antecedent statement is that the scientific effort must be anchored in the needs of a disease state and be working toward a functional product in regenerative medicine. It is this focus on the wildly important ideas coupled with partnered research efforts within both academia and industry that have shown most translational potential. The field continues to thrive and among the most important recent developments are the use of three-dimensional bioprinting, organ-on-a-chip, and induced pluripotent stem cell technologies that warrant special attention. Developments in the aforementioned areas as well as future directions are highlighted in this article. Although several early efforts have not come to fruition, there are good examples of commercial profitability that merit continued investment in tissue engineering. Impact statement Tissue engineering led to the development of new methods for regenerative medicine and disease models. Among the most important recent developments in tissue engineering are the use of three-dimensional bioprinting, organ-on-a-chip, and induced pluripotent stem cell technologies. These technologies and an understanding of them will have impact on the success of tissue engineering and its translation to regenerative medicine. Continued investment in tissue engineering will yield products and therapeutics, with both commercial importance and simultaneous disease mitigation.
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Affiliation(s)
- Nureddin Ashammakhi
- Department of Bioengineering, Henry Samueli School of Engineering, University of California, Los Angeles, California, USA
- Department of Biomedical Engineering, College of Engineering, Michigan State University, Michigan, USA
| | - Amin GhavamiNejad
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie L. Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Rumeysa Tutar
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Annabelle Fricker
- Department of Materials Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Ipsita Roy
- Department of Materials Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield, United Kingdom
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Xanthippi Chatzistavrou
- Department of Chemical Engineering and Material Science, College of Engineering, Michigan State University, East Lansing, Michigan, USA
| | - Ehsanul Hoque Apu
- Department of Bioengineering, Henry Samueli School of Engineering, University of California, Los Angeles, California, USA
| | - Kim-Lien Nguyen
- Department of Radiological Sciences, David Geffen School of Medicine, University of California, Los Angeles, California, USA
- Division of Cardiology, David Geffen School of Medicine, University of California, Los Angeles, and VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | - Taby Ahsan
- RoosterBio, Inc., Frederick, Maryland, USA
| | - Ippokratis Pountos
- Academic Department of Trauma and Orthopaedics, University of Leeds, Leeds, United Kingdom
| | - Edward J. Caterson
- Division of Plastic Surgery, Department of Surgery, Nemours/Alfred I. du Pont Hospital for Children, Wilmington, Delaware, USA
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95
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Pasek-Allen JL, Wilharm RK, Gao Z, Pierre VC, Bischof JC. Phosphonate coating of commercial iron oxide nanoparticles for nanowarming cryopreserved samples. J Mater Chem B 2022; 10:3734-3746. [PMID: 35466332 PMCID: PMC9116443 DOI: 10.1039/d1tb02483c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 03/13/2022] [Indexed: 01/02/2023]
Abstract
New preservation technologies may allow for organ banking similar to blood and biomaterial banking approaches. Using cryoprotective agents (CPAs), aqueous solutions with organic components such as DMSO, propylene glycol, and added salts and sugars, organs can be used to vitrify and store organs at -140 °C. When needed, these organs can be rewarmed in a rapid and uniform manner if CPAs are supplemented with iron oxide nanoparticles (IONPs) in an applied radiofrequency field. Speed and uniformity of warming are both IONP concentration and CPA suspension dependent. Here we present a coating method of small molecule phosphonate linker (PLink) and biocompatible polymer (i.e. polyethylene glycol PEG) that tunes stability and increases the maximum allowable concentration of IONPs in CPA suspension. PLink contains a phosphonate 'anchor' for high irreversible binding to iron oxide and a carboxylic acid 'handle' for ligand attachment. PLink-PEG removes and replaces the initial coating layer of commercially available IONPs (EMG1200 (hydrophobic) and EMG308 (hydrophilic) Ferrotec, Inc., increasing colloidal stability and decreasing aggregation in both water and CPAs, (verified with dynamic light scattering) from minutes (uncoated) to up to 6 days. Heating properties of EMG1200, specific absorption rate (SAR), measured using an applied field of 360 kHz and 20 kA m-1, increased from 20 to 180 W per g Fe with increasing PLink-PEG5000. PEG replacing the initially hydrophobic coating decreased aggregation in water and CPA, consistent with earlier studies on heating performance. Furthermore, although the size is minimized at 0.20 mol PEG per g Fe, heating is not maximized until concentrations above 0.43 mol PEG per g Fe on EMG1200. SAR on hydrophilic EMG308 was preserved at 400 W per g Fe regardless of the amount of PLink added to the core. Herein concentrations of IONP in VS55 (common CPA) significantly above our previous capabilities, sIONP at 10 mg Fe per mL, was reached, 25 mg Fe per mL of 308-PEG5000 and 60 mg Fe per mL of 1200-PEG5000, approaching stock EMG308 in water, 60 mg Fe per mL. Furthermore, at these concentrations cryopreserved Human dermal fibroblast cells were successfully nanowarmed (at applied fields described above), with higher viability as compared to convective rewarming in a water bath and heating rate close to 200 °C min-1, 2.5 times faster than our current system. Using PLink as the coating method allowed for higher concentrations of IONPs to be successfully suspended in CPA without affecting the heating ability. Additionally, the model ligand, PEG, allowed for increased stability over time in nanowarming experiments.
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Affiliation(s)
- Jacqueline L Pasek-Allen
- Department of Biomedical Engineering, University of Minnesota, 312 Church St. SE, Minneapolis, MN 55455, USA.
| | - Randall K Wilharm
- Department of Chemistry, University of Minnesota, 207 Pleasant St SE, Minneapolis, MN 55455, USA.
| | - Zhe Gao
- Mechanical Engineering, University of Minnesota, 111 Church Street Se, Minneapolis, MN 55455, USA.
| | - Valerie C Pierre
- Department of Chemistry, University of Minnesota, 207 Pleasant St SE, Minneapolis, MN 55455, USA.
| | - John C Bischof
- Department of Biomedical Engineering, University of Minnesota, 312 Church St. SE, Minneapolis, MN 55455, USA.
- Mechanical Engineering, University of Minnesota, 111 Church Street Se, Minneapolis, MN 55455, USA.
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96
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Gluconate-Lactobionate-Dextran Perfusion Solutions Attenuate Ischemic Injury and Improve Function in a Murine Cardiac Transplant Model. Cells 2022; 11:cells11101653. [PMID: 35626690 PMCID: PMC9139252 DOI: 10.3390/cells11101653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/03/2022] [Accepted: 05/10/2022] [Indexed: 12/10/2022] Open
Abstract
Static cold storage is the cheapest and easiest method and current gold standard to store and preserve donor organs. This study aimed to compare the preservative capacity of gluconate-lactobionate-dextran (Unisol) solutions to histidine-tryptophan-ketoglutarate (HTK) solution. Murine syngeneic heterotopic heart transplantations (Balb/c-Balb/c) were carried out after 18 h of static cold storage. Cardiac grafts were either flushed and stored with Unisol-based solutions with high-(UHK) and low-potassium (ULK) ± glutathione, or HTK. Cardiac grafts were assessed for rebeating and functionality, histomorphologic alterations, and cytokine expression. Unisol-based solutions demonstrated a faster rebeating time (UHK 56 s, UHK + Glut 44 s, ULK 45 s, ULK + Glut 47 s) compared to HTK (119.5 s) along with a better contractility early after reperfusion and at the endpoint on POD 3. Ischemic injury led to a significantly increased leukocyte recruitment, with similar degrees of tissue damage and inflammatory infiltrate in all groups, yet the number of apoptotic cells tended to be lower in ULK compared to HTK. In UHK- and ULK-treated animals, a trend toward decreased expression of proinflammatory markers was seen when compared to HTK. Unisol-based solutions showed an improved preservative capacity compared with the gold standard HTK early after cardiac transplantation. Supplemented glutathione did not further improve tissue-protective properties.
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97
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Ellis GI, Coker KE, Winn DW, Deng MZ, Shukla D, Bhoj V, Milone MC, Wang W, Liu C, Naji A, Duran-Struuck R, Riley JL. Trafficking and persistence of alloantigen-specific chimeric antigen receptor regulatory T cells in Cynomolgus macaque. Cell Rep Med 2022; 3:100614. [PMID: 35551746 PMCID: PMC9133392 DOI: 10.1016/j.xcrm.2022.100614] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/16/2022] [Accepted: 03/29/2022] [Indexed: 01/13/2023]
Abstract
Adoptive transfer of chimeric antigen receptor regulatory T cells (CAR Tregs) is a promising way to prevent allograft loss without the morbidity associated with current therapies. Non-human primates (NHPs) are a clinically relevant model to develop transplant regimens, but manufacturing and engraftment of NHP CAR Tregs have not been demonstrated yet. Here, we describe a culture system that massively expands CAR Tregs specific for the Bw6 alloantigen. In vitro, these Tregs suppress in an antigen-specific manner without pro-inflammatory cytokine secretion or cytotoxicity. In vivo, Bw6-specific CAR Tregs preferentially traffic to and persist in bone marrow for at least 1 month. Following transplant of allogeneic Bw6+ islets and autologous CAR Tregs into the bone marrow of diabetic recipients, CAR Tregs traffic to the site of islet transplantation and maintain a phenotype of suppressive Tregs. Our results establish a framework for the optimization of CAR Treg therapy in NHP disease models.
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Affiliation(s)
- Gavin I. Ellis
- Department of Microbiology and Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
| | - Kimberly E. Coker
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Delaine W. Winn
- Department of Microbiology and Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
| | - Mosha Z. Deng
- Department of Microbiology and Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
| | - Divanshu Shukla
- Department of Microbiology and Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
| | - Vijay Bhoj
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael C. Milone
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Wei Wang
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Chengyang Liu
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Ali Naji
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | | | - James L. Riley
- Department of Microbiology and Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA,Corresponding author
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98
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Chen J, Zhao Y, Zhou A, Zhang Y, Xu Y, Ning X. Alginate functionalized biomimetic 3D scaffold improves cell culture and cryopreservation for cellular therapy. Int J Biol Macromol 2022; 211:159-169. [PMID: 35568149 DOI: 10.1016/j.ijbiomac.2022.05.065] [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: 03/14/2022] [Revised: 04/30/2022] [Accepted: 05/09/2022] [Indexed: 11/28/2022]
Abstract
The clinical translation of cellular therapy is hampered by the scarcity of reliable and consistent cell sources. In this study, we developed an exquisite scaffold featuring the hierarchical structure and biofunctions of silkworm cocoons (CryoSiCo), for boosting cell manufacture and cryopreservation. CryoSiCo was constructed by a creative bottom-up fabrication technique integrating electrospinning, in situ surface functionalization and freeze-shaping, generating a 3D cocoon-mimicking fibrous scaffold composed of graphene oxide-incorporated polylactic acid/gelatin inner fiber core and alginate outer fiber shell. CryoSiCo provided rapid and uniform rewarming for cryopreserved cells, and maximally maintained cell viability and proliferation capability, allowing for effective cryopreservation. Importantly, CryoSiCo could cryopreserve stem cell-scaffold constructs with high cell survival and functions, which can be directly implanted to restore tissue defects. Thus, CryoSiCo represents an appealing biomimetic strategy for storing precious cells and tissue engineered constructs, showing a broad application for fundamental research and applied medicine.
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Affiliation(s)
- Jianmei Chen
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
| | - Yinfeng Zhao
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
| | - Anwei Zhou
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, School of Physics, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
| | - Yu Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China
| | - Yurui Xu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China.
| | - Xinghai Ning
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Chemistry and Biomedicine Innovation Center, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, China.
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99
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Hata A, Guo Y, Miller AE, Hata M, Mei Z, Manafi A, Li D, Banerjee A, Lazear E, Lau C, Gelman AE, Kreisel D, Yoshino I, Wilkes D, Barker TH, Krupnick AS. Loss of Stromal Cell Thy-1 Plays a Critical Role in Lipopolysaccharide Induced Chronic Lung Allograft Dysfunction. J Heart Lung Transplant 2022; 41:1044-1054. [DOI: 10.1016/j.healun.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 04/14/2022] [Accepted: 05/12/2022] [Indexed: 11/25/2022] Open
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100
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Insights into the crystallization and vitrification of cryopreserved cells. Cryobiology 2022; 106:13-23. [DOI: 10.1016/j.cryobiol.2022.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/05/2022] [Accepted: 04/30/2022] [Indexed: 12/11/2022]
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