1
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Wang J, Li R. Effects, methods and limits of the cryopreservation on mesenchymal stem cells. Stem Cell Res Ther 2024; 15:337. [PMID: 39343920 PMCID: PMC11441116 DOI: 10.1186/s13287-024-03954-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Accepted: 09/22/2024] [Indexed: 10/01/2024] Open
Abstract
Mesenchymal stem cells (MSCs) are a type of cell capable of regulating the immune system, as well as exhibiting self-renewal and multi-lineage differentiation potential. Mesenchymal stem cells have emerged as an essential source of seed cells for therapeutic cell therapy. It is crucial to cryopreserve MSCs in liquid nitrogen prior to clinical application while preserving their functionality. Furthermore, efficient cryopreservation greatly enhances MSCs' potential in a range of biological domains. Nevertheless, there are several limits on the MSC cryopreservation methods now in use, necessitating thorough biosafety assessments before utilizing cryopreserved MSCs. Therefore, in order to improve the effectiveness of cryopreserved MSCs in clinical stem cell treatment procedures, new technological techniques must be developed immediately. The study offers an exhaustive analysis of the state-of-the-art MSC cryopreservation techniques, their effects on MSCs, and the difficulties encountered when using cryopreserved MSCs in clinical applications.
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Affiliation(s)
- Jialing Wang
- Chengdu Senkicel Biotechnology Co. Ltd, Chengdu, China.
| | - Rui Li
- Chengdu Senkicel Biotechnology Co. Ltd, Chengdu, China
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2
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Eskandari A, Leow TC, Rahman MBA, Oslan SN. Structural investigation, computational analysis, and theoretical cryoprotectant approach of antifreeze protein type IV mutants. EUROPEAN BIOPHYSICS JOURNAL : EBJ 2024:10.1007/s00249-024-01719-7. [PMID: 39327310 DOI: 10.1007/s00249-024-01719-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 06/18/2024] [Accepted: 07/02/2024] [Indexed: 09/28/2024]
Abstract
Antifreeze proteins (AFPs) have unique features to sustain life in sub-zero environments due to ice recrystallization inhibition (IRI) and thermal hysteresis (TH). AFPs are in demand as agents in cryopreservation, but some antifreeze proteins have low levels of activity. This research aims to improve the cryopreservation activity of an AFPIV. In this in silico study, the helical peptide afp1m from an Antarctic yeast AFP was modeled into a sculpin AFPIV, to replace each of its four α-helices in turn, using various computational tools. Additionally, a new linker between the first two helices of AFPIV was designed, based on a flounder AFPI, to boost the ice interaction activity of the mutants. Bioinformatics tools such as ExPASy Prot-Param, Pep-Wheel, SOPMA, GOR IV, Swiss-Model, Phyre2, MODFOLD, MolPropity, and ProQ were used to validate and analyze the structural and functional properties of the model proteins. Furthermore, to evaluate the AFP/ice interaction, molecular dynamics (MD) simulations were executed for 20, 100, and 500 ns at various temperatures using GROMACS software. The primary, secondary, and 3D modeling analysis showed the best model for a redesigned antifreeze protein (AFP1mb, with afp1m in place of the fourth AFPIV helix) with a QMEAN (Swiss-Model) Z score value of 0.36, a confidence of 99.5%, a coverage score of 22%, and a p value of 0.01. The results of the MD simulations illustrated that AFP1mb had more rigidity and better ice interactions as a potential cryoprotectant than the other models; it also displayed enhanced activity in limiting ice growth at different temperatures.
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Affiliation(s)
- Azadeh Eskandari
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Thean Chor Leow
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Enzyme Technology and X-Ray Crystallography Laboratory, VacBio 5, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | | | - Siti Nurbaya Oslan
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
- Enzyme Technology and X-Ray Crystallography Laboratory, VacBio 5, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
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3
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Farag A, Ngeun SK, Kaneda M, Aboubakr M, Elhaieg A, Hendawy H, Tanaka R. Exploring the Potential Effects of Cryopreservation on the Biological Characteristics and Cardiomyogenic Differentiation of Rat Adipose-Derived Mesenchymal Stem Cells. Int J Mol Sci 2024; 25:9908. [PMID: 39337396 PMCID: PMC11432599 DOI: 10.3390/ijms25189908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Revised: 09/05/2024] [Accepted: 09/11/2024] [Indexed: 09/30/2024] Open
Abstract
Cryopreservation is essential for the broad clinical application of mesenchymal stem cells (MSCs), yet its impact on their cellular characteristics and cardiomyogenic differentiation potential remains a critical concern in translational medicine. This study aimed to evaluate the effects of cryopreservation on the biological properties and cardiomyogenic capacity of rat adipose-derived MSCs (AD-MSCs). We examined their cellular morphology, surface marker expression (CD29, CD90, CD45), trilineage differentiation potential (adipogenic, osteogenic, chondrogenic), and gene expression profiles for the pluripotency marker REX1 and immunomodulatory markers TGFβ1 and IL-6. After inducing cardiomyocyte differentiation, we assessed cardiac-specific gene expressions (Troponin I, MEF2c, GSK-3β) using quantitative RT-qPCR, along with live/dead cell staining and immunofluorescence for cardiac-specific proteins (Troponin T, α-actinin, Myosin Heavy Chain). Cryopreserved AD-MSCs preserved their morphology, surface markers, and differentiation potential, but exhibited a reduced expression of REX1, TGFβ1, and IL-6. Additionally, cryopreservation diminished cardiomyogenic differentiation, as indicated by the lower levels of Troponin I, MEF2c, and GSK-3β seen compared to non-cryopreserved cells. Despite this, high cell viability (>90%) and maintained cardiac protein expression were observed post-cryopreservation. These findings highlight the necessity of optimizing cryopreservation protocols to ensure the full therapeutic potential of AD-MSCs, particularly in applications related to cardiac regenerative medicine.
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Affiliation(s)
- Ahmed Farag
- Faculty of Agriculture, Veterinary Teaching Hospital, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Sai Koung Ngeun
- Laboratory of Veterinary Diagnostic Imaging, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Masahiro Kaneda
- Laboratory of Veterinary Anatomy, Division of Animal Life Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Mohamed Aboubakr
- Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, Toukh 13736, Egypt
| | - Asmaa Elhaieg
- Faculty of Agriculture, Veterinary Teaching Hospital, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Hanan Hendawy
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Ryou Tanaka
- Faculty of Agriculture, Veterinary Teaching Hospital, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
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4
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Dobruskin M, Toner G, Kander R. Optimizing cryopreservation strategies for scalable cell therapies: A comprehensive review with insights from iPSC-derived therapies. Biotechnol Prog 2024:e3504. [PMID: 39268839 DOI: 10.1002/btpr.3504] [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: 07/29/2024] [Revised: 08/23/2024] [Accepted: 08/28/2024] [Indexed: 09/15/2024]
Abstract
Off-the-shelf cell therapies hold significant curative potential for conditions, such as Parkinson's disease and heart failure. However, these therapies face unique cryopreservation challenges, especially when novel routes of administration, such as intracerebral or epicardial injection, require cryopreservation media that are safe for direct post-thaw administration. Current practices often involve post-thaw washing to remove dimethyl sulfoxide (Me2SO), a cytotoxic cryoprotective agent, which complicates the development and clinical translation of off-the-shelf therapies. To overcome these obstacles, there is a critical need to explore Me2SO-free cryopreservation methods. While such methods typically yield suboptimal post-thaw viability with conventional slow-freeze protocols, optimizing freezing profiles offers a promising strategy to enhance their performance. This comprehensive review examines the latest advancements in cryopreservation techniques across various cell therapy platforms, with a specific case study of iPSC-derived therapies used to illustrate the scalability challenges. By identifying key thermodynamic and biochemical phenomena that occur during freezing, this review aims to identify cell-type independent approaches to improve the efficiency and efficacy of cryopreservation strategies, thereby supporting the widespread adoption and clinical success of off-the-shelf cell therapies.
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Affiliation(s)
- Michael Dobruskin
- Jefferson Institute for Bioprocessing, Thomas Jefferson University, Spring House, Pennsylvania, USA
| | - Geoffrey Toner
- Jefferson Institute for Bioprocessing, Thomas Jefferson University, Spring House, Pennsylvania, USA
| | - Ronald Kander
- Jefferson Institute for Bioprocessing, Thomas Jefferson University, Spring House, Pennsylvania, USA
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5
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Mangoli V, Evgeni E, Wyns C. Sperm cryopreservation protocol for micro-TESE-retrieved sperm. Asian J Androl 2024:00129336-990000000-00241. [PMID: 39254400 DOI: 10.4103/aja202466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 06/20/2024] [Indexed: 09/11/2024] Open
Abstract
Azoospermia is characterized by the absence of sperm in the ejaculate and is categorized into obstructive azoospermia (OA) and nonobstructive azoospermia (NOA). For men with NOA, testicular sperm extraction (TESE) is the only method to obtain sperm for assisted reproductive technology (ART). Given the rarity of these sperm and the unpredictable success of subsequent retrieval attempts, cryopreservation of microdissection-TESE-obtained sperm is essential. Effective cryopreservation prevents the need for repeated surgical procedures and supports future ART attempts. After first delving into the physiological and molecular aspects of sperm cryopreservation, this review aims to examine the current methods and devices for preserving small numbers of sperm. It presents conventional freezing and vitrification techniques, evaluating their respective strengths and limitations in effectively preserving rare sperm, and compares the efficacy of using fresh versus cryopreserved testicular sperm.
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Affiliation(s)
- Vijay Mangoli
- Fertility Clinic and IVF Centre, Mumbai 400007, Maharashtra, India
| | | | - Christine Wyns
- Department of Gynecology-Andrology, Cliniques Universitaires Saint-Luc, Catholic University of Louvain, Brussels 1200, Belgium
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Chacon Alberty L, King M, Mesquita FCP, Hochman-Mendez C. Quality Assessment of Long-Term Cryopreserved Human Bone-Derived Marrow Mesenchymal Stromal Cell Samples: Experience from the Texas Heart Institute Biorepository and Biospecimen Profiling Core. Biopreserv Biobank 2024. [PMID: 39253842 DOI: 10.1089/bio.2023.0144] [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: 09/11/2024] Open
Abstract
In biomedical research, biorepositories are pivotal resources that safeguard and supply clinical samples for scientific investigators. Proper long-term cryopreservation conditions are essential to maintain biospecimen quality. In this study, we analyzed the efficacy of sample cryopreservation at the Texas Heart Institute Biorepository and Biospecimen Profiling Core (THI-BRC). Our assessments included a thorough review of internal processes, quality reports, and both internal and external audit outcomes. We examined the integrity of human bone marrow-derived multipotent mesenchymal stromal cells (BM-MSCs) that were cryopreserved for over 5 years. These samples originated from randomly selected clinical trial participants or commercially sourced cell lines. Parameters such as cell viability, DNA and RNA integrity, population doubling time, sterility, and BM-MSC-specific attributes such as surface antigen expression and differentiation potential were studied. BM-MSC samples cryopreserved for ∼6 months served as our control. Our results demonstrated that the 5-year cryopreserved samples maintained their integrity compared with the shorter-term stored control samples. Moreover, THI-BRC has met accreditation agency standards and has not received any repeated deficiencies over 7 years. Collectively, our findings affirm that THI-BRC's biospecimen storage protocols align with accepted standards as confirmed by the quality assessment of long-term stored clinical samples.
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Affiliation(s)
- Lourdes Chacon Alberty
- Biorepository and Biospecimen Profiling Core, The Texas Heart Institute, Houston, Texas, USA
- Regenerative Medicine Research, The Texas Heart Institute, Houston, Texas, USA
| | - Madelyn King
- Biorepository and Biospecimen Profiling Core, The Texas Heart Institute, Houston, Texas, USA
| | | | - Camila Hochman-Mendez
- Biorepository and Biospecimen Profiling Core, The Texas Heart Institute, Houston, Texas, USA
- Regenerative Medicine Research, The Texas Heart Institute, Houston, Texas, USA
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Tutrina A, Zhurilov P. Efficacy assessment of different cryoprotectants for preserving the viability of Enterobacterales strains at - 20 °C. Sci Rep 2024; 14:20843. [PMID: 39242800 PMCID: PMC11379685 DOI: 10.1038/s41598-024-71529-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 08/28/2024] [Indexed: 09/09/2024] Open
Abstract
The preservation of microorganisms is pivotal in microbiological practice. Currently, cryopreservation is assumed to be an effective and inexpensive approach for the storage of microorganisms, including bacteria. The key point of cryopreservation is optimal cryoprotectant selection. In the present study, different cryoprotectant compositions were tested for long-term storage of 15 Enterobacterales bacterial strains at - 20 °C. The survival rates of the bacterial strains were evaluated in four different cryoprotectant solutions containing 70% glycerin only (cryoprotectants 1 and 4), 10% dimethyl sulfoxide (DMSO) with 70% glycerin (cryoprotectant 2), and 10% DMSO (cryoprotectant 3). In addition, cryoprotectants 1 and 2 contained peptone and yeast extract as nutritional supplements. The general survival rates of the bacterial strains were evaluated after 12 months of storage. After 12 months, the survival rates of the different cryoprotectants were as follows: cryoprotectant 1-88.87%; cryoprotectant 2-84.85%; cryoprotectant 3-83.50%; and cryoprotectant 4-44.81%. Thus, the composition of cryoprotectant 1 (70% glycerin with nutrient supplements) was optimal for preserving 15 tested strains of the order Enterobacterales. Despite these findings, the biochemical properties of the tested strains changed after cryopreservation for 12 months in the presence of 1 or 3 cryoprotectants. Alterations in the biochemical profile could be related to changes in environmental conditions and cold adaptation. We assume that the composition of cryoprotectant 1 can be optimal for storing the order Enterobacterales at - 20 °C. However, further investigations are needed to elucidate the problem of cryopreservation and to support our assumption.
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Affiliation(s)
- Anastasia Tutrina
- Federal Research Center for Virology and Microbiology, Branch in Nizhny Novgorod, 603950, Nizhny Novgorod, Russia.
| | - Pavel Zhurilov
- Federal Research Center for Virology and Microbiology, Branch in Nizhny Novgorod, 603950, Nizhny Novgorod, Russia
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Vissers G, Peek R, Verdurmen WPR, Nap AW. Endometriotic tissue fragments are viable after cryopreservation in an ex vivo tissue model recapitulating the fibrotic microenvironment. Hum Reprod 2024; 39:2067-2078. [PMID: 39025483 PMCID: PMC11373316 DOI: 10.1093/humrep/deae164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 06/24/2024] [Indexed: 07/20/2024] Open
Abstract
STUDY QUESTION Is it possible to establish an ex vivo endometriosis model using cryopreserved endometriotic tissue fragments? SUMMARY ANSWER Cryopreserved endometriotic tissue fragments remain viable after thawing and during at least 3 days of culture and can therefore be used to establish an ex vivo endometriosis model to efficiently test potential therapeutic agents. WHAT IS KNOWN ALREADY Endometriosis is the most prevalent benign gynecologic disease with an enormous societal burden; however, curative therapies are still lacking. To efficiently test potential new therapies, an ex vivo model based on previously cryopreserved endometriotic tissue that recapitulates the different endometriosis subtypes and their microenvironment is highly desirable. STUDY DESIGN, SIZE, DURATION Endometriotic tissue fragments of three different subtypes were obtained from 28 patients by surgical resection. After cryopreservation and thawing, viability and metabolic activity of these tissue fragments were assessed. Viability was compared with fresh fragments from 11 patients directly after surgical removal. Experimental intervention studies were performed in cryopreserved and thawed tissue fragments from two patients to confirm the usability of these tissues for ex vivo intervention studies. PARTICIPANTS/MATERIALS, SETTING, METHODS Endometriotic tissue fragments (n = 45) were cryopreserved according to three different protocols. After thawing, fragments were cultured for 24 h. A resazurin-based assay was performed to assess the metabolic activity of the tissue fragments. In addition, cell type-specific viability was analyzed by VivaFix, Hoechst 33342, and α-smooth muscle actin immunofluorescence staining and confocal microscopy. The presence of endometriosis was histologically confirmed based on hematoxylin-eosin staining. Cryopreserved and thawed tissue fragments were treated for 72 h with pirfenidone or metformin and COL1A1 and CEMIP gene expressions were assessed using RT-PCR and RT-qPCR, either in the whole tissue fragments or in myofibroblasts isolated by laser capture microdissection. MAIN RESULTS AND THE ROLE OF CHANCE Metabolic activity of endometriotic tissue fragments obtained from peritoneal (PER), ovarian (OMA), and deep (DE) endometriotic lesions was well preserved after cryopreservation in a dimethyl sulfoxide-based medium and was comparable with fresh tissue fragments. Relative metabolic activity compared to fresh tissue was 70% (CI: 92-47%) in PER, 43% (CI: 53-15%) in OMA and 94% (CI: 186-3%) in DE lesions. In fragments from PE lesions 92% (CI: 87-96%), from OMA lesions 95% (CI: 91-98%), and from DE lesions 88% (CI: 78-98%) of cells were viable after cryopreservation and thawing followed by a 24-h culture period. Differences in gene expression of fibrotic markers COL1A1 and CEMIP after 72-h treatment with pirfenidone or metformin could be detected in whole tissue fragments and in isolated myofibroblasts, indicating that cryopreserved and thawed endometriotic tissue fragments are suitable for testing anti-fibrotic interventions. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Viability and metabolic activity of the endometriotic tissue fragments may have been partially compromised by damage sustained during the surgical procedure, contributing to inter-sample variance. WIDER IMPLICATIONS OF THE FINDINGS The storage of viable endometriotic tissue fragments for later usage in an ex vivo model creates the possibility to efficiently test potential new therapeutic strategies and facilitates the exchange of viable endometriotic tissue between different research laboratories. STUDY FUNDING/COMPETING INTEREST(S) This study was not financially supported by external funding. The authors declare no competing interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- G Vissers
- Department of Obstetrics & Gynaecology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - R Peek
- Department of Obstetrics & Gynaecology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - W P R Verdurmen
- Department of Medical BioSciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A W Nap
- Department of Obstetrics & Gynaecology, Radboud University Medical Center, Nijmegen, The Netherlands
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Loeslakwiboon K, Li HH, Tsai S, Wen ZH, Lin C. Effects of chilling and cryoprotectants on glycans in shrimp embryos. Cryobiology 2024; 116:104930. [PMID: 38871207 DOI: 10.1016/j.cryobiol.2024.104930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/30/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
Glycans are carbohydrates present in every organism that bind to specific molecules such as lectins, a diverse group of proteins. Glycans are vital to cell proliferation and protein trafficking. In addition, embryogenesis is a critical phase in the development of marine organisms. This study investigated the effects of chilling and cryoprotective agents (CPAs) on glycans in the embryos of Stenopus hispidus. The glycan profiles of embryos of S. hispidus at the heartbeat stage were analyzed using lectin arrays. The results of analyses revealed that mannose was the most abundant glycan in the S. hispidus embryos; mannose is crucial to cell proliferation, providing the energy required for embryonic growth. Additionally, the results reveled that chilling altered the content of several glycans, including fucose and Gla-GlcNAc. Chilling may promote monosaccharide accumulation, facilitating osmotic regulation of cells and signal molecules to aid S. hispidus embryos in adapting to cold conditions. Changes were also observed in the lectins NPA, orysata, PALa, ASA, discoidin II, discoidin I, UDA, PA-IIL, and PHA-P after the samples were treated with different CPAs. DMSO may minimize cell damage during exposure to chilling by preserving cell structures, membrane properties, and functions. The present study is the first to investigate the profiles and functions of glycans in shrimp embryos subjected to low-temperature injuries. This study enhances the understanding of cell reproduction during embryogenesis and provides valuable information for the study of glycans in embryos.
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Affiliation(s)
- Kanokpron Loeslakwiboon
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan; National Museum of Marine Biology & Aquarium, Pingtung, Taiwan; Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan
| | - Hsing-Hui Li
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan; National Museum of Marine Biology & Aquarium, Pingtung, Taiwan
| | - Sujune Tsai
- Department of Post Modern Agriculture, Mingdao University, Chang Hua, Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Chiahsin Lin
- National Museum of Marine Biology & Aquarium, Pingtung, Taiwan; Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan.
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Ashrafi E, Sauvageau D, Elliott JAW. Effects of different cryopreservation parameters on the differences between trypan blue and fluorescent SYTO 13/GelRed assays. Cryobiology 2024; 116:104883. [PMID: 38452848 DOI: 10.1016/j.cryobiol.2024.104883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/30/2024] [Accepted: 03/05/2024] [Indexed: 03/09/2024]
Abstract
Post-thaw cell viability assessment is very important in cryopreservation because it is the main assessment method used to optimize cryopreservation protocols for each cell type; hence, having standardized accurate, quick, and reliable assays for post-thaw cell viability measurements is of utmost importance. The trypan blue exclusion assay and nucleic-acid-binding fluorescence-based assays are two different methods for cell viability assessment. Both assays identify cells with damaged membranes by whether they let a compound enter the cell. In this study, these two assays are compared in the context of cryopreservation and the impacts of important cryopreservation parameters on the differences in measurements are investigated. H9c2 myoblasts were cryopreserved with different freezing protocols. Cell membrane integrities were measured immediately after thaw as well as after cryoprotectant removal by a hemocytometer-based trypan blue dye exclusion assay and a dual fluorometric SYTO 13/GelRed assay; and the results were compared. This study quantifies how (i) the absence or presence of different cryoprotectants, (ii) different cell-cryoprotectant incubation conditions, and (iii) the presence or removal of cryoprotectants after thaw affect the differences between these two viability assays.
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Affiliation(s)
- Elham Ashrafi
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
| | - Dominic Sauvageau
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada.
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11
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Jiang X, Zhijian T, Min C, Rong Y, Xinghui T, Gong X. Basic study on cryopreservation of rat calvarial osteoblasts with different cryoprotectants. Cell Tissue Bank 2024; 25:755-764. [PMID: 38976150 DOI: 10.1007/s10561-024-10142-3] [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: 11/08/2023] [Accepted: 05/25/2024] [Indexed: 07/09/2024]
Abstract
Cryopreservation is a method adopted for storage of autologous skulls. Herein, this current research sought to explore the effects of different cryoprotectants on the biological characteristics of rat calvarial osteoblasts after cryopreservation. Neonatal Sprague-Dawley rats were selected and their skull tissues were isolated. The skull tissues were allocated into the refrigerating-3M, refrigerating-6M, M199-3M, M199-6M, povidone iodine-3M, and povidone iodine-6M groups according to the usage of cryoprotectants and treatment time (month) and the fresh group. Osteoblasts were isolated from skull tissues in each group through digestion. The histomorphology of the skull was evaluated by H&E staining and cell morphology was observed by microscopy. The viability, proliferation, apoptosis, and osteogenic activity of osteoblasts were assessed by trypan blue staining, MTT, flow cytometry, and alkaline phosphatase (ALP) staining. The skull histomorphology and osteoblast morphology were similar between the fresh and refrigerating groups. Osteoblast viability was weakened after cryopreservation. The longer the refrigeration time, the lower the number of living cells and the higher the apoptosis rate. However, cryopreservation using different cryoprotectants did not evidently affect osteoblast proliferation and ALP activity. Different cryoprotectants show no apparent effect on the osteogenic activity of rat calvarial osteoblasts after cryopreservation.
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Affiliation(s)
- Xu Jiang
- Department of Neurosurgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, West Jiefang Road, Furong District, Changsha, 410005, Hunan, People's Republic of China
| | - Tan Zhijian
- Department of Neurosurgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, West Jiefang Road, Furong District, Changsha, 410005, Hunan, People's Republic of China
| | - Cao Min
- Research and Development Center, Hunan Chuang He Biotechnology Limited Company, Changsha, 410205, Hunan, People's Republic of China
| | - Yu Rong
- Research and Development Center, Hunan Chuang He Biotechnology Limited Company, Changsha, 410205, Hunan, People's Republic of China
| | - Tan Xinghui
- Research and Development Center, Hunan Chuang He Biotechnology Limited Company, Changsha, 410205, Hunan, People's Republic of China.
| | - Xin Gong
- Department of Neurosurgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No. 61, West Jiefang Road, Furong District, Changsha, 410005, Hunan, People's Republic of China.
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12
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LaSala VR, Cordoves EM, Kalfa DM. Adaptation of cold preservation techniques to partial heart transplant. J Thorac Cardiovasc Surg 2024:S0022-5223(24)00697-4. [PMID: 39173707 DOI: 10.1016/j.jtcvs.2024.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Revised: 08/04/2024] [Accepted: 08/07/2024] [Indexed: 08/24/2024]
Affiliation(s)
- V Reed LaSala
- Division of Cardiac, Thoracic, and Vascular Surgery, Section of Pediatric and Congenital Cardiac Surgery, New York-Presbyterian Morgan Stanley Children's Hospital, Columbia University Medical Center, New York, NY
| | - Elizabeth M Cordoves
- Division of Cardiac, Thoracic, and Vascular Surgery, Section of Pediatric and Congenital Cardiac Surgery, New York-Presbyterian Morgan Stanley Children's Hospital, Columbia University Medical Center, New York, NY
| | - David M Kalfa
- Division of Cardiac, Thoracic, and Vascular Surgery, Section of Pediatric and Congenital Cardiac Surgery, New York-Presbyterian Morgan Stanley Children's Hospital, Columbia University Medical Center, New York, NY.
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Temerario L, Martino NA, Bennink M, de Wit A, Hiemstra SJ, Dell’Aquila ME, Lamy J. Effects of Cryoprotectant Concentration and Exposure Time during Vitrification of Immature Pre-Pubertal Lamb Cumulus-Oocyte Complexes on Nuclear and Cytoplasmic Maturation. Animals (Basel) 2024; 14:2351. [PMID: 39199884 PMCID: PMC11350855 DOI: 10.3390/ani14162351] [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: 06/14/2024] [Revised: 08/06/2024] [Accepted: 08/13/2024] [Indexed: 09/01/2024] Open
Abstract
Oocyte vitrification allows for the storing of endangered breed female gametes. Cryoprotectant (CPA) concentration and exposure time should ensure cell protection with minimal toxicity. In the present study, a high concentration-rapid exposure (HC-RE) and a low concentration-slow exposure (LC-SE) vitrification protocol, using dimethyl sulfoxide (DMSO) and ethylene glycol (EG) as permeating CPAs, were evaluated on meiotic competence and bioenergetic-oxidative status of pre-pubertal lamb immature COCs after in vitro maturation (IVM). For each protocol, COCs vitrified through a traditional protocol and fresh ones were used as controls. Both protocols allowed COC morphology preservation after vitrification-warming (V-W) and cumulus expansion after IVM. The maturation rate (7% and 14%) was comparable to the vitrified control (13% and 21%) but not satisfactory compared to fresh ones (58% and 64%; p < 0.001). The rate of mature oocytes displaying a perinuclear/subcortical (P/S) mitochondrial distribution pattern, an index of cytoplasmic maturity, was comparable between vitrified and fresh oocytes. The LC-SE vitrification protocol did not affect quantitative bioenergetic-oxidative parameters compared to both controls whereas HC-RE protocol significantly reduced intracellular reactive oxygen species (ROS) levels, indicating cell viability loss. In conclusion, to improve pre-pubertal lamb immature COC vitrification, the combination of low CPA concentrations with prolonged exposure time could be more promising to investigate further.
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Affiliation(s)
- Letizia Temerario
- Department of Biosciences, Biotechnology & Environment, University of Bari Aldo Moro, Strada per Casamassima km 3, 70010 Valenzano, Italy; (N.A.M.); (M.E.D.)
| | - Nicola Antonio Martino
- Department of Biosciences, Biotechnology & Environment, University of Bari Aldo Moro, Strada per Casamassima km 3, 70010 Valenzano, Italy; (N.A.M.); (M.E.D.)
| | - Monika Bennink
- Animal Breeding and Genomics, Wageningen University & Research, 6700 AH Wageningen, The Netherlands; (M.B.); (A.d.W.); (S.J.H.); (J.L.)
| | - Agnes de Wit
- Animal Breeding and Genomics, Wageningen University & Research, 6700 AH Wageningen, The Netherlands; (M.B.); (A.d.W.); (S.J.H.); (J.L.)
| | - Sipke Joost Hiemstra
- Animal Breeding and Genomics, Wageningen University & Research, 6700 AH Wageningen, The Netherlands; (M.B.); (A.d.W.); (S.J.H.); (J.L.)
| | - Maria Elena Dell’Aquila
- Department of Biosciences, Biotechnology & Environment, University of Bari Aldo Moro, Strada per Casamassima km 3, 70010 Valenzano, Italy; (N.A.M.); (M.E.D.)
| | - Julie Lamy
- Animal Breeding and Genomics, Wageningen University & Research, 6700 AH Wageningen, The Netherlands; (M.B.); (A.d.W.); (S.J.H.); (J.L.)
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14
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Ishii H, Endo R, Hamanaka S, Hidaka N, Miyauchi M, Hagiwara N, Miyao T, Yamamori T, Aiba T, Akiyama N, Akiyama T. Establishing a method for the cryopreservation of viable peripheral blood mononuclear cells in the International Space Station. NPJ Microgravity 2024; 10:84. [PMID: 39122696 PMCID: PMC11315897 DOI: 10.1038/s41526-024-00423-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
The analysis of cells frozen within the International Space Station (ISS) will provide crucial insights into the impact of the space environment on cellular functions and properties. The objective of this study was to develop a method for cryopreserving blood cells under the specific constraints of the ISS. In a ground experiment, mouse blood was directly mixed with a cryoprotectant and gradually frozen at -80 °C. Thawing the frozen blood sample resulted in the successful recovery of viable mononuclear cells when using a mixed solution of dimethylsulfoxide and hydroxyethyl starch as a cryoprotectant. In addition, we developed new freezing cases to minimize storage space utilization within the ISS freezer. Finally, we confirmed the recovery of major mononuclear immune cell subsets from the cryopreserved blood cells through a high dimensional analysis of flow cytometric data using 13 cell surface markers. Consequently, this ground study lays the foundation for the cryopreservation of viable blood cells on the ISS, enabling their analysis upon return to Earth. The application of this method in ISS studies will contribute to understanding the impact of space environments on human cells. Moreover, this method may find application in the cryopreservation of blood cells in situations where research facilities are inadequate.
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Affiliation(s)
- Hiroto Ishii
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Rin Endo
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Sanae Hamanaka
- Space Biomedical Research Group, Human Spaceflight Technology Directorate, JAXA, Tsukuba, Japan
| | - Nobuyuki Hidaka
- Space Biomedical Research Group, Human Spaceflight Technology Directorate, JAXA, Tsukuba, Japan
| | - Maki Miyauchi
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Naho Hagiwara
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
| | - Takahisa Miyao
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
| | | | - Tatsuya Aiba
- Space Biomedical Research Group, Human Spaceflight Technology Directorate, JAXA, Tsukuba, Japan
| | - Nobuko Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Taishin Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan.
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan.
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15
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Uko MP, Umana SI, Iwatt IJ, Udoekong NS, Mgbechidinma CL, Adie FU, Akan OD. Microbial ice-binding structures: A review of their applications. Int J Biol Macromol 2024; 275:133670. [PMID: 38971293 DOI: 10.1016/j.ijbiomac.2024.133670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 06/02/2024] [Accepted: 07/02/2024] [Indexed: 07/08/2024]
Abstract
Microorganisms' ice-binding structures (IBS) are macromolecules with potential commercial value in agriculture, food technology, material technology, cryobiology, and medicine. Microbial ice-structuring or microbial ice-binding particles, with their multi-applications, are simple to use, effective in low amounts, non-toxic, and environmentally friendly. Due to their source and composition diversities, microbial ice-binding structures are gaining attention because they are useable in various conditions. Some microorganisms also produce structures with dual ice-nucleating and anti-freezing properties. Structures that promote ice formation (ice nucleating particles- INPs) act as ice nuclei, lowering the energy barrier between supercooled liquid and ice, causing ice crystals to form. In contrast, anti-freeze particles (AFPs) prevent ice formation and recrystallization through several mechanisms, including disturbing the formation of string hydrogen bonds amongst water molecules, melting already formed ice crystals, and preventing crystal formation by binding to specific sites. Knowledge of the type and function of microbial ice-binding structures lends fundamental insight for possible scaling the production of cheap, functional, and advanced microbial structure-inspired mimics and by-products. This review focuses on microbial ice-binding structures and their potential uses in the food, medicinal, environmental, and agricultural sectors.
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Affiliation(s)
- Mfoniso Peter Uko
- Faculty of Biological Science, Akwa-Ibom State University, Akwa-Ibom State, Uyo 1167, Nigeria
| | - Senyene Idorenyin Umana
- Faculty of Biological Science, Akwa-Ibom State University, Akwa-Ibom State, Uyo 1167, Nigeria; Department of Microbiology, Faculty of Michael Okpara of Agriculture, Umudike, Nigeria
| | - Ifiok Joseph Iwatt
- Center for Wetlands and Wastes Management Studies, Faculty of Agriculture, University of Uyo, Uyo, Nigeria
| | | | - Chiamaka Linda Mgbechidinma
- School of Life Sciences, Centre for Cell and Development Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China; Department of Microbiology, University of Ibadan, Ibadan 200243, Nigeria
| | - Francisca Upekiema Adie
- Department of Microbiology, Faculty of Biological Sciences, Cross River State University of Technology, Calabar, Nigeria
| | - Otobong Donald Akan
- Faculty of Biological Science, Akwa-Ibom State University, Akwa-Ibom State, Uyo 1167, Nigeria; College of Food Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China.
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16
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Tan Y, Salkhordeh M, Murray ABP, Souza-Moreira L, Stewart DJ, Mei SHJ. Key quality parameter comparison of mesenchymal stem cell product cryopreserved in different cryopreservation solutions for clinical applications. Front Bioeng Biotechnol 2024; 12:1412811. [PMID: 39148941 PMCID: PMC11324487 DOI: 10.3389/fbioe.2024.1412811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 07/12/2024] [Indexed: 08/17/2024] Open
Abstract
Introduction Cryopreservation is a critical process of cell products for achieving a commercial viability through wide scale adoption. By preserving cells in a lower temperature, cryopreservation enables a product to be off-the-shelf and ready for infusion. An optimized cryopreservation strategy can maintain the viability, phenotype, and potency of thawed mesenchymal stromal/stem cells (MSCs) while being regulatory compliant. We compared three clinical-ready formulations with one research cryopreservation solutions and evaluated key quality parameters of post thawed MSCs. Method and result MSCs were cryopreserved at 3, 6, and 9 million cells/mL (M/mL) in four different cryopreservation solutions: NutriFreez (10% dimethyl sulfoxide [DMSO]), Plasmalyte A (PLA)/5% human albumin (HA)/10% DMSO (PHD10), CryoStor CS5 (5% DMSO), and CryoStor CS10 (10% DMSO). To establish post thaw viability, cells were evaluated with no dilution of DMSO (from 3 M/mL), 1:1 dilution (from 6 M/mL), or 1:2 dilution (from 9 M/mL) with PLA/5% HA, to achieve uniform concentration at 3 M/mL. Cell viability was measured at 0-, 2-, 4-, and 6-h post thaw with Trypan blue exclusion and Annexin V/PI staining. Dilution (1:2) of final cell products from 9M/mL resulted in an improvement of cell viability over 6 h but showed a trend of decreased recovery. MSCs cryopreserved in solutions with 10% DMSO displayed comparable viabilities and recoveries up to 6 h after thawing, whereas a decreasing trend was noted in cell viability and recovery with CS5. Cells from all groups exhibited surface marker characteristics of MSCs. We further evaluated cell proliferation after 6-day recovery in culture. While cells cryopreserved in NutriFreez and PHD10 presented similar cell growth post thaw, MSCs cryopreserved in CS5 and CS10 at 3 M/mL and 6M/mL showed 10-fold less proliferative capacity. No significant differences were observed between MSCs cryopreserved in NutriFreez and PHD10 in their potency to inhibit T cell proliferation and improve monocytic phagocytosis. Conclusion MSCs can be cryopreserved up to 9 M/mL without losing notable viability and recovery, while exhibiting comparable post thaw potency with NutriFreez and PHD10. These results highlight the importance of key parameter testing for selecting the optimal cryopreservation solution for MSC-based therapy.
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Affiliation(s)
- Yuan Tan
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Mahmoud Salkhordeh
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Aidan B P Murray
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Luciana Souza-Moreira
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Duncan J Stewart
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Shirley H J Mei
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
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17
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Zolfaghar M, Acharya P, Joshi P, Choi NY, Shrestha S, Reddy Lekkala VK, Kang SY, Lee M, Lee MY. Cryopreservation of neuroectoderm on a pillar plate and in situ differentiation into human brain organoids. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.25.605147. [PMID: 39091876 PMCID: PMC11291134 DOI: 10.1101/2024.07.25.605147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Cryopreservation in cryovials extends cell storage at low temperatures, and advances in organoid cryopreservation improve reproducibility and reduce generation time. However, cryopreserving human organoids presents challenges due to the limited diffusion of cryoprotective agents (CPAs) into the organoid core and the potential toxicity of these agents. To overcome these obstacles, we developed a cryopreservation technique using a pillar plate platform. To illustrate cryopreservation application to human brain organoids (HBOs), early-stage HBOs were produced by differentiating induced pluripotent stem cells (iPSCs) into neuroectoderm (NEs) in an ultralow atachement (ULA) 384-well plate. These NEs were transferred and encapsulated in Matrigel on the pillar plate. The early-stage HBOs on the pillar plate were exposed to four commercially available CPAs, including PSC cryopreservation kit, CryoStor CS10, 3dGRO, and 10% DMSO, before being frozen overnight at -80°C and subsequently stored in a liquid nitrogen dewar. We examined the impact of CPA type, organoid size, and CPA exposure duration on cell viability post-thaw. Additionally, the differentiation of early-stage HBOs on the pillar plate was assessed using RT-qPCR and immunofluorescence staining. The PSC cryopreservation kit proved to be the least toxic for preserving these HBOs on the pillar plate. Notably, smaller HBOs showed higher cell viability post-cryopreservation than larger ones. An incubation period of 80 minutes with the PSC kit was essential to ensure optimal CPA diffusion into HBOs with a diameter of 400 - 600 µm. These cryopreserved early-stage HBOs successfully matured over 30 days, exhibiting gene expression patterns akin to non-cryopreserved HBOs. The cryopreserved early-stage HBOs on the pillar plate maintained high viability after thawing and successfully differentiated into mature HBOs. This on-chip cryopreservation method could extend to other small organoids, by integrating cryopreservation, thawing, culturing, staining, rinsing, and imaging processes within a single system, thereby preserving the 3D structure of the organoids.
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18
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Moniz I, Soares M, Sousa AP, Ramalho-Santos J, Branco A. The Low Survivability of Transplanted Gonadal Grafts: The Impact of Cryopreservation and Transplantation Conditions on Mitochondrial Function. BIOLOGY 2024; 13:542. [PMID: 39056734 PMCID: PMC11274302 DOI: 10.3390/biology13070542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/10/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024]
Abstract
Advances in tissue preservation techniques have allowed reproductive medicine and assisted reproductive technologies (ARTs) to flourish in recent years. Because radio- and chemotherapy procedures are often gonadotoxic, irreversible damage can preclude future gamete production and endocrine support. Accordingly, in recent years, the freezing and storage of gonadal tissue fragments prior to the first oncological treatment appointment and autologous transplantation post-recovery have been considered improved solutions for fertility recovery in cancer survivors. Nevertheless, the cryopreservation and transplantation of thawed tissues is still very limited, and positive outcomes are relatively low. This review aims to discuss the limitations of oncofertility protocols with a focus on the impacts of mitochondrial dysfunction, oxidative stress, and the loss of antioxidant defense in graft integrity.
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Affiliation(s)
- Inês Moniz
- Doctoral Programme in Experimental Biology and Biomedicine (PDBEB), Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal; (I.M.)
- CNC—Centre for Neuroscience and Cell Biology, CIBB—Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Azinhaga de Santa Comba, Polo 3, 3000-548 Coimbra, Portugal
| | - Maria Soares
- Doctoral Programme in Experimental Biology and Biomedicine (PDBEB), Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal; (I.M.)
- CNC—Centre for Neuroscience and Cell Biology, CIBB—Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Azinhaga de Santa Comba, Polo 3, 3000-548 Coimbra, Portugal
| | - Ana Paula Sousa
- CNC—Centre for Neuroscience and Cell Biology, CIBB—Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Azinhaga de Santa Comba, Polo 3, 3000-548 Coimbra, Portugal
- Reproductive Medicine Unit, Unidade Local de Saúde de Coimbra, Praceta Prof. Mota Pinto, 3000-075 Coimbra, Portugal
- Eugin Coimbra, Rua Filipe Hodart, 3000-185 Coimbra, Portugal
| | - João Ramalho-Santos
- CNC—Centre for Neuroscience and Cell Biology, CIBB—Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Azinhaga de Santa Comba, Polo 3, 3000-548 Coimbra, Portugal
- Department of Live Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Ana Branco
- CNC—Centre for Neuroscience and Cell Biology, CIBB—Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Azinhaga de Santa Comba, Polo 3, 3000-548 Coimbra, Portugal
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19
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Park M, Safford M, Scheers J, Hammill L, Pleitez D, Jerbi T, Koudji EM, Yelity S, Campion S, Miller MM, Gibb SL, Sargent A. Automation preserves product consistency and quality for the formulation, fill, and finish of T cell-based therapies. Cytotherapy 2024:S1465-3249(24)00798-9. [PMID: 39078352 DOI: 10.1016/j.jcyt.2024.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 07/01/2024] [Accepted: 07/03/2024] [Indexed: 07/31/2024]
Abstract
Scaling up the manufacture of cell therapies can be complex and challenging. Maintaining critical quality attributes of the cell product during its final formulation and fill-finish into multiple containers can be especially difficult and laborious. Here, we tested the automated Finia™ Fill and Finish System to efficiently scale up the formulation and fill-finish of a T cell product, and then assessed cell quality and product consistency across different sub-lots filled during this expanded process. We found that this automated system could be effectively scaled to 4 times its singular capacity in a 2-h time interval, with variation in cell number and product volume less than 12% across all containers. Analysis of the different sub-lots of the final product revealed high cell viability and consistent T cell phenotype, with a high proportion of effector memory and central memory T cells and low expression of T cell senescence and exhaustion markers. The functionality of the T cell product was compared by measuring cytokine response after restimulation, with secreted levels of effector cytokines like IFN-γ and TNF-α being similar across the different sub-lots. Collectively, these results show that automation can scale up the formulation and fill-finish of a cell manufacturing process while maintaining the phenotype and functionality of the cell product. Better understanding of how to maintain product uniformity and quality during final manufacturing is important to the further scale-up and development of successful cell therapies.
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Affiliation(s)
- Minsung Park
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Meredith Safford
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Jade Scheers
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Lora Hammill
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Despina Pleitez
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Terri Jerbi
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Eyram Marcelle Koudji
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Shanelle Yelity
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Sarah Campion
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA
| | - Mindy M Miller
- Terumo Blood and Cell Technologies Inc., Lakewood, Colarado, USA
| | - Stuart L Gibb
- Terumo Blood and Cell Technologies Inc., Lakewood, Colarado, USA
| | - Alex Sargent
- Process and Assay Development, Cell and Gene Therapy, Charles River Laboratories, Hanover, Maryland, USA.
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20
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Aquino LVC, Rodrigues LLV, Olindo SL, Silva YLF, Oliveira LRM, Moura YBF, Pereira AF. L-Proline as a Cryoprotective Agent for the Preservation of Galea Spixii Skin Fibroblasts. Biopreserv Biobank 2024. [PMID: 38985578 DOI: 10.1089/bio.2024.0006] [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: 07/12/2024] Open
Abstract
Somatic cell biobanking is a promising strategy for developing reproductive techniques. Although cryopreservation, a technique used for creating biobanks, has been performed on Galea spixii, structural and physiological damage to its cells highlight the need to optimize the cryoprotective solution being used. Therefore, the osmoprotective activity of 5 mM L-proline was evaluated as an alternative cryoprotectant for G. spixii fibroblast conservation. The concentration was defined based on previous studies conducted on mammalian cells. Cells derived from the skin of six individuals were cultured until the fifth passage were cryopreserved under the following treatments: (i) control (non-cryopreserved); (ii) a solution with 10% dimethyl sulfoxide (Me2SO), 10% fetal bovine serum (FBS), and 0.2 M sucrose; (iii) a solution with 10% Me2SO, 10% FBS, and 5 mM L-proline; and (iv) a solution with 10% Me2SO, 10% FBS, 0.2 M sucrose, and 5 mM L-proline. Tests were conducted to analyze cell morphology, viability, metabolism, proliferation, and apoptosis; reactive oxygen species (ROS) levels; and mitochondrial membrane activity (ΔΨm). A reduction in the number of viable cells (72.3% ± 1.2%) was observed in the sucrose-containing group compared to the control (86.7% ± 2.0%) and L-proline (88.4% ± 1.8% and 87.8% ± 2.1%) groups. After apoptotic analysis, a reduction in the number of viable cells was observed in the group with sucrose alone (74.6% ± 4.1%) compared to the control group (88.2% ± 1.1%). The ROS levels (1.03 ± 0.5 and 1.07 ± 0.5, respectively) and ΔΨm values (0.99 ± 0.42 and 1.22 ± 0.73, respectively) observed in the groups with L-proline were similar to that observed in the control group (1.00 ± 0.5 and 1.00 ± 0.4, respectively). Moreover, no difference was observed between groups for cell morphology, metabolism, or proliferation. Thus, L-proline is a cryoprotectant agent that can be used during G. spixii fibroblast cryopreservation, alone or with sucrose. In addition, we developed an adequate biobank for G. spixii, whereby stored cells could be used for reproductive techniques.
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Affiliation(s)
- Leonardo V C Aquino
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Luanna L V Rodrigues
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Samara L Olindo
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Yara L F Silva
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Lhara R M Oliveira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Yasmin B F Moura
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
| | - Alexsandra F Pereira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoró, Brazil
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21
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Shin DY, Park JS, Lee HS, Shim W, Jin L, Lee KW, Park JB, Kim DH, Kim JH. The effect of hydroxyethyl starch as a cryopreservation agent during freezing of mouse pancreatic islets. Biochem Biophys Rep 2024; 38:101658. [PMID: 38362049 PMCID: PMC10867579 DOI: 10.1016/j.bbrep.2024.101658] [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: 11/08/2023] [Revised: 01/25/2024] [Accepted: 02/01/2024] [Indexed: 02/17/2024] Open
Abstract
Islet transplantation is the most effective treatment strategy for type 1 diabetes. Long-term storage at ultralow temperatures can be used to prepare sufficient islets of good quality for transplantation. For freezing islets, dimethyl sulfoxide (DMSO) is a commonly used penetrating cryoprotective agent (CPA). However, the toxicity of DMSO is a major obstacle to cell cryopreservation. Hydroxyethyl starch (HES) has been proposed as an alternative CPA. To investigate the effects of two types of nonpermeating CPA, we compared 4 % HES 130 and HES 200 to 10 % DMSO in terms of mouse islet yield, viability, and glucose-stimulated insulin secretion (GSIS). After one day of culture, islets were cryopreserved in each solution. After three days of cryopreservation, islet recovery was significantly higher in the HES 130 and HES 200 groups than in the DMSO group. Islet viability in the HES 200 group was also significantly higher than that in the DMSO group on Day 1 and Day 3. Stimulation indices determined by GSIS were higher in the HES 130 and 200 groups than in the DMSO group on Day 3. After three days of cryopreservation, HES 130 and HES 200 both reduced the expression of apoptosis- and necrosis-associated proteins and promoted the survival of islets. In conclusion, the use of HES as a CPA improved the survival and insulin secretion of cryopreserved islets compared with the use of a conventional CPA.
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Affiliation(s)
- Du Yeon Shin
- Transplantation Research Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, 06351, Republic of Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Graduate School, Sungkyunkwan University, Seoul, 06351, Republic of Korea
| | - Jae Suh Park
- Department of Pediatrics, Hematology/Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06355, Republic of Korea
| | - Han-Sin Lee
- R&D Center, Cellstormer, Suwon-si, Gyeonggi-do, 16677, Republic of Korea
| | - Wooyoung Shim
- R&D Center, Cellstormer, Suwon-si, Gyeonggi-do, 16677, Republic of Korea
| | - Lauren Jin
- Department of Pediatrics, Hematology/Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06355, Republic of Korea
| | - Kyo Won Lee
- Transplantation Research Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, 06351, Republic of Korea
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea
| | - Jae Berm Park
- Transplantation Research Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, 06351, Republic of Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Graduate School, Sungkyunkwan University, Seoul, 06351, Republic of Korea
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea
| | - Dong Hyun Kim
- Department of Pediatrics, Hematology/Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06355, Republic of Korea
| | - Jae Hyeon Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Graduate School, Sungkyunkwan University, Seoul, 06351, Republic of Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06355, Republic of Korea
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22
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Limido E, Weinzierl A, Ampofo E, Harder Y, Menger MD, Laschke MW. Short-term cryoprotectant-free cryopreservation at -20°C does not affect the viability and regenerative capacity of nanofat. Front Bioeng Biotechnol 2024; 12:1427232. [PMID: 39011155 PMCID: PMC11246958 DOI: 10.3389/fbioe.2024.1427232] [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: 05/03/2024] [Accepted: 06/14/2024] [Indexed: 07/17/2024] Open
Abstract
Nanofat is an autologous fat derivative with high regenerative activity, which is usually administered immediately after its generation by mechanical emulsification of adipose tissue. For its potential repeated use over longer time, we herein tested whether cryopreservation of nanofat is feasible. For this purpose, the inguinal fat pads of donor mice were processed to nanofat, which was i) frozen and stored in a freezer at -20°C, ii) shock frozen in liquid nitrogen with subsequent storage at -80°C or iii) gradually frozen and stored at -80°C. After 7 days, the cryopreserved nanofat samples were thawed and immunohistochemically compared with freshly generated nanofat (control). Nanofat frozen and stored at -20°C exhibited the lowest apoptotic rate and highest densities of blood and lymph vessels, which were comparable to those of control. Accordingly, nanofat cryopreserved at -20°C or control nanofat were subsequently fixed with platelet-rich plasma in full-thickness skin defects within dorsal skinfold chambers of recipient mice to assess vascularization, formation of granulation tissue and wound closure by means of stereomicroscopy, intravital fluorescence microscopy, histology and immunohistochemistry over 14 days. These analyses revealed no marked differences between the healing capacity of wounds filled with cryopreserved or control nanofat. Therefore, it can be concluded that cryopreservation of nanofat is simply feasible without affecting its viability and regenerative potential. This may broaden the range of future nanofat applications, which would particularly benefit from repeated administration of this autologous biological product.
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Affiliation(s)
- Ettore Limido
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Andrea Weinzierl
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Emmanuel Ampofo
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Yves Harder
- Department of Plastic, Reconstructive and Aesthetic Surgery, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Michael D. Menger
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Matthias W. Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
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23
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Choudhary P, Bhatt S, Chatterjee S. From freezing to functioning: cellular strategies of cold-adapted bacteria for surviving in extreme environments. Arch Microbiol 2024; 206:329. [PMID: 38940837 DOI: 10.1007/s00203-024-04058-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 06/29/2024]
Abstract
The ability of cold-adapted bacteria to survive in extreme cold and diverse temperatures is due to their unique attributes like cell membrane stability, up-regulation of peptidoglycan biosynthesis, increased production of extracellular polymeric substances, and expansion of membrane pigment. Various cold-adapted proteins, including ice-nucleating proteins (INPs), antifreeze proteins (AFPs), cold shock proteins (Csps), and cold-acclimated proteins (CAPs), help the bacteria to survive in these environments. To sustain cells from extreme cold conditions and maintain stability in temperature fluctuations, survival strategies at the molecular level and their mechanism play significant roles in adaptations in cryospheric conditions. Furthermore, cold shock domains present in the multifunctional cold shock proteins play crucial roles in their adaptation strategies. The considerable contribution of lipopeptides, osmolytes, and membrane pigments plays an integral part in their survival in extreme environments. This review summarizes the evolutionary history of cold-adapted bacteria and their molecular and cellular adaptation strategies to thrive in harsh cold environments. It also discusses the importance of carotenoids produced, lipid composition, cryoprotectants, proteins, and chaperones related to this adaptation. Furthermore, the functions and mechanisms of adaptations within the cell are discussed briefly. One can utilize and explore their potential in various biotechnology applications and their evolutionary journey by knowing the inherent mechanism of their molecular and cellular adaptation to cold climatic conditions. This review will help all branches of the life science community understand the basic microbiology of psychrophiles and their hidden prospect in life science research.
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Affiliation(s)
- Priyanka Choudhary
- Bioremediation and Metabolomics Research Group, Department of Environmental Sciences, Central University of Himachal Pradesh, Academic Block-Shahpur, Kangra, Himachal Pradesh, 176206, India
| | - Sunidhi Bhatt
- Bioremediation and Metabolomics Research Group, Department of Environmental Sciences, Central University of Himachal Pradesh, Academic Block-Shahpur, Kangra, Himachal Pradesh, 176206, India
| | - Subhankar Chatterjee
- Bioremediation and Metabolomics Research Group, Dept. of Ecology & Environmental Sciences, School of Life Sciences, Pondicherry University, R.V. Nagar, Kalapet, Puducherry, 605014, India.
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24
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Lopes JC, Kinasz CT, Luiz AMC, Kreusch MG, Duarte RTD. Frost fighters: unveiling the potential of microbial antifreeze proteins in biotech innovation. J Appl Microbiol 2024; 135:lxae140. [PMID: 38877650 DOI: 10.1093/jambio/lxae140] [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: 04/02/2024] [Revised: 05/30/2024] [Accepted: 06/13/2024] [Indexed: 06/16/2024]
Abstract
Polar environments pose extreme challenges for life due to low temperatures, limited water, high radiation, and frozen landscapes. Despite these harsh conditions, numerous macro and microorganisms have developed adaptive strategies to reduce the detrimental effects of extreme cold. A primary survival tactic involves avoiding or tolerating intra and extracellular freezing. Many organisms achieve this by maintaining a supercooled state by producing small organic compounds like sugars, glycerol, and amino acids, or through increasing solute concentration. Another approach is the synthesis of ice-binding proteins, specifically antifreeze proteins (AFPs), which hinder ice crystal growth below the melting point. This adaptation is crucial for preventing intracellular ice formation, which could be lethal, and ensuring the presence of liquid water around cells. AFPs have independently evolved in different species, exhibiting distinct thermal hysteresis and ice structuring properties. Beyond their ecological role, AFPs have garnered significant attention in biotechnology for potential applications in the food, agriculture, and pharmaceutical industries. This review aims to offer a thorough insight into the activity and impacts of AFPs on water, examining their significance in cold-adapted organisms, and exploring the diversity of microbial AFPs. Using a meta-analysis from cultivation-based and cultivation-independent data, we evaluate the correlation between AFP-producing microorganisms and cold environments. We also explore small and large-scale biotechnological applications of AFPs, providing a perspective for future research.
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Affiliation(s)
- Joana Camila Lopes
- Laboratory of Molecular Ecology and Extremophiles, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina-Campus Reitor João David Ferreira Lima, s/n Trindade, Florianópolis, SC 88040-900, Brazil
- Postgraduate Program in Biotechnology and Biosciences, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, s/n Trindade, Florianópolis, SC 88040-900, Brazil
| | - Camila Tomazini Kinasz
- Laboratory of Molecular Ecology and Extremophiles, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina-Campus Reitor João David Ferreira Lima, s/n Trindade, Florianópolis, SC 88040-900, Brazil
- Postgraduate Program in Biotechnology and Biosciences, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima,, s/n Trindade, Florianópolis, SC 88040-900, Brazil
| | - Alanna Maylle Cararo Luiz
- Laboratory of Molecular Ecology and Extremophiles, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina-Campus Reitor João David Ferreira Lima, s/n Trindade, Florianópolis, SC 88040-900, Brazil
- Postgraduate Program in Biotechnology and Biosciences, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima,, s/n Trindade, Florianópolis, SC 88040-900, Brazil
| | - Marianne Gabi Kreusch
- Laboratory of Molecular Ecology and Extremophiles, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina-Campus Reitor João David Ferreira Lima, s/n Trindade, Florianópolis, SC 88040-900, Brazil
| | - Rubens Tadeu Delgado Duarte
- Laboratory of Molecular Ecology and Extremophiles, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina-Campus Reitor João David Ferreira Lima, s/n Trindade, Florianópolis, SC 88040-900, Brazil
- Postgraduate Program in Biotechnology and Biosciences, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima,, s/n Trindade, Florianópolis, SC 88040-900, Brazil
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Yu M, Marquez-Curtis LA, Elliott JAW. Cryopreservation-induced delayed injury and cell-type-specific responses during the cryopreservation of endothelial cell monolayers. Cryobiology 2024; 115:104857. [PMID: 38350589 DOI: 10.1016/j.cryobiol.2024.104857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/15/2024]
Abstract
The cryopreservation of endothelial cell monolayers is an important step that bridges the cryopreservation of cells in suspension to that of tissues. Previous studies have identified clear distinctions in freezing mechanisms between cells in suspension and in monolayers, as well as developed novel protocols for monolayer cryopreservation. Recently, our group has shown that human umbilical vein endothelial cell (HUVEC) and porcine corneal endothelial cell (PCEC) monolayers grown on Rinzl plastic substrate can be cryopreserved in 5% dimethyl sulfoxide, 6% hydroxyethyl starch, and 2% chondroitin sulfate, following a slow-cooling protocol (-1 °C/min) with rapid plunge into liquid nitrogen from -40 °C. However, membrane integrity assessments were done immediately post thaw, which may result in an overestimation of cell viability due to possible delayed injury responses. Here, we show that for the optimal protocol condition of plunge at the -40 °C interrupt temperature, HUVEC and PCEC monolayers exhibited no significant immediate post-thaw injuries nor delayed injury responses during the 24-h post-thaw overnight culture period. HUVEC monolayers experienced no significant impact to their natural growth rate during the post-thaw culture, while PCEC monolayers experienced significantly higher growth than the unfrozen controls. The difference in the low-temperature responses between HUVEC and PCEC monolayers was further shown under high temperature plunge conditions. At these suboptimal plunge temperatures, HUVEC monolayers exhibited moderate immediate membrane injury but a pronounced delayed injury response during the 24-h post-thaw culture, while PCEC monolayers showed significant immediate membrane injury but no additional delayed injury response during the same period. Therefore, we provide further validation of our group's previously designed endothelial monolayer cryopreservation protocol for HUVEC and PCEC monolayers, and we identify several cell-type-specific responses to the freezing process.
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Affiliation(s)
- MingHan Yu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, T6G 1H9, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 1C9, Canada
| | - Leah A Marquez-Curtis
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, T6G 1H9, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 1C9, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, T6G 1H9, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 1C9, Canada.
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Todorov P, Hristova E, Petrova N, Milachich T. Three live births after human embryo vitrification with the use of aluminum oxide as an intermediate cooling agent: a case report. F S Rep 2024; 5:145-151. [PMID: 38983741 PMCID: PMC11228792 DOI: 10.1016/j.xfre.2024.01.003] [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: 08/17/2023] [Revised: 12/22/2023] [Accepted: 01/08/2024] [Indexed: 07/11/2024] Open
Abstract
Objective To study the possibility of increasing the cooling rates of the vitrification procedure in a closed system with the use of aluminum oxide as an intermediate coolant. Design Case report. Subjects Six patients undergoing procedures for assisted reproduction. Intervention Comparative studies of cryopreservation of donor embryos with aluminum oxide as an intermediate cooling agent (experimental group) and without it (control group) have been performed. After thawing, the embryo morphology and its potential to develop to the blastocyst stage have been assessed. The methodology was then applied to clinical practice. Main Outcome Measures Twenty embryos of 6 patients have been vitrified on day 4 after fertilization with the use of aluminum oxide as an intermediate coolant. Fourteen of them have been thawed. All have displayed normal morphology and 10 have formed blastocysts after 24 hours of culture. Four of the patients received embryo transfer with 2 embryos and the other 2 with single embryos. Results After preliminary comparative studies of embryos frozen with aluminum oxide and a control group, the results showed no statistically significant difference between their quality and potential to reach to blastocyst stage. That gave us ground to apply the methodology in clinical practice. After the embryo transfer, 3 clinical pregnancies with successful live births have been obtained. Conclusions Our experience shows that preimplantation embryos can be cryopreserved aseptically, in closed systems, with the help of aluminum oxide as an intermediate coolant.
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Affiliation(s)
- Plamen Todorov
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
- Invitro OB Gyn Medical Center "Dimitrov," Sofia, Bulgaria
| | - Elena Hristova
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Nadya Petrova
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
- Invitro OB Gyn Medical Center "Dimitrov," Sofia, Bulgaria
| | - Tanya Milachich
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
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27
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McCann SR. Storage of wine and blood. Bone Marrow Transplant 2024; 59:715-716. [PMID: 38514814 DOI: 10.1038/s41409-024-02262-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 02/28/2024] [Accepted: 03/05/2024] [Indexed: 03/23/2024]
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28
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Spinelli C, Ghionzoli M, Sahli LI, Visintainer S, Guglielmo C, Cordola C, Lapi S, Biagi E, Pucci A, Morganti R, Ferrari SM, Antonelli A. Cryopreserved Thyroid Tissue Autotransplant in Pediatric Age Patients: A Feasibility Study and Literature Review. Cancers (Basel) 2024; 16:2112. [PMID: 38893231 PMCID: PMC11171235 DOI: 10.3390/cancers16112112] [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: 04/12/2024] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND AND AIMS This paper aims to study an alternative solution to hormonal replacement therapy in specific groups of patients who underwent thyroidectomy during childhood or adulthood. After cryopreservation, thyroid autotransplantation could be an alternative solution which would allow us to use the ability of the thyroid tissue of producing hormones according to the physiological needs of the body. MATERIALS AND METHODS A feasibility study about the effects of the most modern cryopreservation techniques on the structural and functional integrity of the follicular cells of the thyroid tissue has been carried out. Patients who could benefit from the treatment have been found for both autotransplant techniques. Additionally, a literature review has been conducted. RESULTS The histological analysis has shown that cryopreservation does not alter the original architecture, and the culture examination that cell viability is successfully preserved. Moreover, both thyroid autotransplantation studies on animals and those on humans that were found in the literature have shown good results regarding the viability and functionality of the transplant. CONCLUSIONS The viability of cryopreserved thyroid tissue found in this study is encouraging. Further studies to evaluate the levels of FT3, FT4 and thyroglobulin in thyroid tissue after cryopreservation are needed to verify that the secretory properties of the thyrocytes have been maintained intact. Furthermore, autotransplanted cases found in the literature do not have a long-term follow-up.
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Affiliation(s)
- Claudio Spinelli
- Pediatric Surgery Unit, Maternity and Children Department, University of Pisa, 56124 Pisa, Italy
| | - Marco Ghionzoli
- Pediatric Surgery Unit, Maternity and Children Department, University of Pisa, 56124 Pisa, Italy
| | - Linda Idrissi Sahli
- Pediatric Surgery Unit, Maternity and Children Department, University of Pisa, 56124 Pisa, Italy
| | - Silvia Visintainer
- Pediatric Surgery Unit, Maternity and Children Department, University of Pisa, 56124 Pisa, Italy
| | - Carla Guglielmo
- Pediatric Surgery Unit, Maternity and Children Department, University of Pisa, 56124 Pisa, Italy
| | - Chiara Cordola
- Pediatric Surgery Unit, Maternity and Children Department, University of Pisa, 56124 Pisa, Italy
| | - Simone Lapi
- Biobank Division, University Hospital of Pisa, 56124 Pisa, Italy
| | - Elisa Biagi
- Biobank Division, University Hospital of Pisa, 56124 Pisa, Italy
| | - Angela Pucci
- Department of Surgical, Medical and Molecular Pathology and Critical Area, University of Pisa, 56124 Pisa, Italy
| | - Riccardo Morganti
- Section of Statistics, University Hospital of Pisa, 56124 Pisa, Italy
| | | | - Alessandro Antonelli
- Department of Clinical and Experimental Medicine, University of Pisa, 56124 Pisa, Italy
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29
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Browne DJ, Miller CM, Doolan DL. Technical pitfalls when collecting, cryopreserving, thawing, and stimulating human T-cells. Front Immunol 2024; 15:1382192. [PMID: 38812513 PMCID: PMC11133553 DOI: 10.3389/fimmu.2024.1382192] [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: 02/05/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024] Open
Abstract
The collection, cryopreservation, thawing, and culture of peripheral blood mononuclear cells (PBMCs) can profoundly influence T cell viability and immunogenicity. Gold-standard PBMC processing protocols have been developed by the Office of HIV/AIDS Network Coordination (HANC); however, these protocols are not universally observed. Herein, we have explored the current literature assessing how technical variation during PBMC processing can influence cellular viability and T cell immunogenicity, noting inconsistent findings between many of these studies. Amid the mounting concerns over scientific replicability, there is growing acknowledgement that improved methodological rigour and transparent reporting is required to facilitate independent reproducibility. This review highlights that in human T cell studies, this entails adopting stringent standardised operating procedures (SOPs) for PBMC processing. We specifically propose the use of HANC's Cross-Network PBMC Processing SOP, when collecting and cryopreserving PBMCs, and the HANC member network International Maternal Pediatric Adolescent AIDS Clinical Trials (IMPAACT) PBMC Thawing SOP when thawing PBMCs. These stringent and detailed protocols include comprehensive reporting procedures to document unavoidable technical variations, such as delayed processing times. Additionally, we make further standardisation and reporting recommendations to minimise and document variability during this critical experimental period. This review provides a detailed overview of the challenges inherent to a procedure often considered routine, highlighting the importance of carefully considering each aspect of SOPs for PBMC collection, cryopreservation, thawing, and culture to ensure accurate interpretation and comparison between studies.
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Affiliation(s)
- Daniel J. Browne
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
| | - Catherine M. Miller
- College of Medicine and Dentistry, James Cook University, Cairns, QLD, Australia
| | - Denise L. Doolan
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
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30
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Arora S, Dash SK, Dhawan D, Sahoo PK, Jindal A, Gugulothu D. Freeze-drying revolution: unleashing the potential of lyophilization in advancing drug delivery systems. Drug Deliv Transl Res 2024; 14:1111-1153. [PMID: 37985541 DOI: 10.1007/s13346-023-01477-7] [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] [Accepted: 11/07/2023] [Indexed: 11/22/2023]
Abstract
Lyophilization also known as freeze-drying is a technique that has been employed to enhance the long-term durability of nanoparticles (NPs) that are utilized for drug delivery applications. This method is used to prevent their instability in suspension. However, this dehydration process can cause stress to the NPs, which can be alleviated by the incorporation of excipients like cryoprotectants and lyoprotectants. Nevertheless, the freeze-drying of NPs is often based on empirical principles without considering the physical-chemical properties of the formulations and the engineering principles of freeze-drying. For this reason, it is crucial to optimize the formulations and the freeze-drying cycle to obtain a good lyophilizate and ensure the preservation of NPs stability. Moreover, proper characterization of the lyophilizate and NPs is of utmost importance in achieving these goals. This review aims to update the recent advancements, including innovative formulations and novel approaches, contributing to the progress in this field, to obtain the maximum stability of formulations. Additionally, we critically analyze the limitations of lyophilization and discuss potential future directions. It addresses the challenges faced by researchers and suggests avenues for further research to overcome these limitations. In conclusion, this review is a valuable contribution to the understanding of the parameters involved in the freeze-drying of NPs. It will definitely aid future studies in obtaining lyophilized NPs with good quality and enhanced drug delivery and therapeutic benefits.
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Affiliation(s)
- Sanchit Arora
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi, 110017, India
| | - Sanat Kumar Dash
- Department of Pharmacy, Birla Institute of Technology and Science (BITS PILANI), Pilani, Rajasthan, 333031, India
| | - Dimple Dhawan
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi, 110017, India
| | - Prabhat Kumar Sahoo
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi, 110017, India
| | - Anil Jindal
- Department of Pharmacy, Birla Institute of Technology and Science (BITS PILANI), Pilani, Rajasthan, 333031, India
| | - Dalapathi Gugulothu
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi, 110017, India.
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Strzelec A, Gawlik-Rzemieniewska N, Klima A, Panek K, Helbig G. The Impact of Cryopreservation on Hematopoietic Stem Cell Engraftment and Post-transplant Outcome During the COVID-19 Pandemic. In Vivo 2024; 38:1271-1277. [PMID: 38688614 PMCID: PMC11059856 DOI: 10.21873/invivo.13565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND/AIM The COVID-19 pandemic has had a significant impact on the current management of allotransplanted patients in whom fresh hematopoietic stem cells (HSCs) were replaced by cryopreserved ones. The aim of the study was to determine the efficacy and safety of cryopreserved HSCs when compared with the fresh ones. PATIENTS AND METHODS A retrospective analysis of 254 allogeneic stem cell transplantations (HSCT) procedures performed between 2020-2021 included the following donors: matched related (MRD; n=68), matched unrelated (MUD; n=148) and haploidentical (HID; n=38). 50% of patients (non-cryo group) received fresh grafts, whereas the remaining patients (cryo group) were transplanted with cryopreserved cells. RESULTS No differences in terms of median days to neutrophil [MRD/MUD/HID cryo- and non-cryo groups: 17 vs. 16 (p=0.27), 19 vs. 18 (p=0.83), 22 vs. 22 (p=0.83) days, respectively] and platelet [MRD/MUD/HID cryo- and non-cryo groups: 14 vs. 14 (p=0.25), 17 vs. 17 (p=0.33), 21 vs. 19 (p=0.36) days, respectively] engraftments were demonstrated. Among MUD graft recipients, platelet engraftment rates were 81% in the cryo- and 96% in the non-cryo group (p=0.01). OS rates were comparable at 1 year after HSCT between MRD/MUD/HID cryo- and non-cryo groups: 53% vs. 60% (p=0.54), 60% vs. 66% (p=0.5), 50% vs. 41% (p=0.56), respectively. CONCLUSION During the COVID-19 pandemic, cryopreserved HSCs did not have a negative impact on median engraftment time and OS when compared to fresh HSCs. In the MUD group, platelet engraftment rate was lower in cryopreserved HSC recipients.
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Affiliation(s)
- Anna Strzelec
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
| | - Natalia Gawlik-Rzemieniewska
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
| | - Anna Klima
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
| | - Karolina Panek
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
| | - Grzegorz Helbig
- Faculty of Medicine in Katowice, Medical University of Silesia, Department of Hematology and Bone Marrow Transplantation, Katowice, Poland
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Marco A, Gargallo M, Ciriza J, Shikanov A, Baquedano L, García Pérez-Llantada J, Malo C. Current Fertility Preservation Steps in Young Women Suffering from Cancer and Future Perspectives. Int J Mol Sci 2024; 25:4360. [PMID: 38673945 PMCID: PMC11050570 DOI: 10.3390/ijms25084360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/05/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Childhood cancer incidence, especially in high-income countries, has led to a focus on preserving fertility in this vulnerable population. The common treatments, such as radiation and certain chemotherapeutic agents, though effective, pose a risk to fertility. For adult women, established techniques like embryo and egg freezing are standard, requiring ovarian stimulation. However, for prepubescent girls, ovarian tissue freezing has become the primary option, eliminating the need for hormonal preparation. This review describes the beginning, evolution, and current situation of the fertility preservation options for this young population. A total of 75 studies were included, covering the steps in the current fertility preservation protocols: (i) ovarian tissue extraction, (ii) the freezing method, and (iii) thawing and transplantation. Cryopreservation and the subsequent transplantation of ovarian tissue have resulted in successful fertility restoration, with over 200 recorded live births, including cases involving ovarian tissue cryopreserved from prepubescent girls. Despite promising results, challenges persist, such as follicular loss during transplantation, which is attributed to ischemic and oxidative damage. Optimizing ovarian tissue-freezing processes and exploring alternatives to transplantation, like in vitro systems for follicles to establish maturation, are essential to mitigating associated risks. Further research is required in fertility preservation techniques to enhance clinical outcomes in the future. Ovarian tissue cryopreservation appears to be a method with specific benefits, indications, and risks, which can be an important tool in terms of preserving fertility in younger women.
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Affiliation(s)
- Alicia Marco
- Faculty of Medicine, University of Zaragoza, 50018 Zaragoza, Spain;
| | - Marta Gargallo
- Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain; (M.G.); (J.C.)
| | - Jesús Ciriza
- Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain; (M.G.); (J.C.)
- Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain
| | - Ariella Shikanov
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109, USA
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Laura Baquedano
- Department of Gynecology, University Hospital Miguel Servat, 50009 Zaragoza, Spain;
| | | | - Clara Malo
- Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain; (M.G.); (J.C.)
- Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain
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Widyastuti R, Prastowo S, Jaswandi J, Lubis A, Setiawan R, Ridlo MR, Boediono A. Effect of melatonin supplementation on sperm quality parameters and expression of antioxidant genes during cold storage of buck semen extenders. Vet World 2024; 17:863-870. [PMID: 38798287 PMCID: PMC11111719 DOI: 10.14202/vetworld.2024.863-870] [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: 12/07/2023] [Accepted: 04/02/2024] [Indexed: 05/29/2024] Open
Abstract
Background and Aim Semen storage is an important reproductive method used in artificial livestock breeding. However, oxidative stress during storage reduces the quality of sperm. Melatonin supplementation in semen storage medium has not been well studied, but it has been shown to protect cells from oxidative stress. Therefore, this study aimed to determine the effect of melatonin supplementation on sperm quality parameters and antioxidant gene expression levels in semen extenders during cold storage. Materials and Methods Semen extenders with melatonin concentrations of 0 (control), 0.1, 0.2, and 0.3 mM were added as treatment. The treated semen was then stored at 5°C for 72 h using a cold storage method, and quality parameters, including percentage of progressive motility, membrane integrity, intact acrosome, and DNA integrity, were measured every 24 h. In addition, messenger ribonucleic acid abundance levels of glutathione peroxidase (GPx) and superoxide dismutase (SOD) genes were sampled after 0 and 72 h of cold storage. Results All observed sperm quality parameters decreased with increasing cold storage time; however, 0.2 mM melatonin demonstrated superior protection of sperm quality during cold storage. Gene expression analysis showed that GPx levels decreased significantly (p < 0.05) after 72 h in semen without melatonin but not in the melatonin-treated groups. A similar trend was also observed in SOD, indicating that exogenous antioxidants effectively protected the sperms. Conclusion Melatonin supplementation at 0.2 mM in semen extenders during cold storage maintains sperm quality parameters for up to 72 h because melatonin protects sperm from oxidative stress. These findings can be used to improve the semen storage protocol by combining semen extender and antioxidant.
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Affiliation(s)
- Rini Widyastuti
- Department of Animal Production, Faculty of Animal Husbandry, Universitas Padjadjaran, Jl Raya Bandung-Sumedang KM 21, Sumedang, West Java, Indonesia
| | - Sigit Prastowo
- Department of Animal Science, Faculty of Animal Science, Universitas Sebelas Maret, Surakarta. Indonesia
| | - Jaswandi Jaswandi
- Department of Reproduction Biotechnology, Faculty of Animal Science, Universitas Andalas. Limau Manis, Pauh, Padang, West Sumatera, Indonesia
| | - Alkaustariyah Lubis
- Working Group of Genetic Medicine, Faculty of Medicine, Universitas Padjadjaran, Jatinangor, Jl Raya Bandung-Sumedang KM 21, Sumedang, West Java, Indonesia
| | - Rangga Setiawan
- Department of Animal Production, Faculty of Animal Husbandry, Universitas Padjadjaran, Jl Raya Bandung-Sumedang KM 21, Sumedang, West Java, Indonesia
| | - Muhammad Rosyid Ridlo
- Department of Bioresources Technology and Veterinary, Vocational College, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Arief Boediono
- Department of Anatomy, Physiology and Pharmacology, School of Veterinary Medicine and Biomedical, IPB University, Bogor, West Java, Indonesia
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Wu Y, Sun J, Wang W, Wang Y, Friedrich RE. How to make full use of dental pulp stem cells: an optimized cell culture method based on explant technology. Front Bioeng Biotechnol 2024; 12:1324049. [PMID: 38562666 PMCID: PMC10982513 DOI: 10.3389/fbioe.2024.1324049] [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: 10/18/2023] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction Dental pulp stem cells from humans possess self-renewal and versatile differentiation abilities. These cells, known as DPSC, are promising for tissue engineering due to their outstanding biological characteristics and ease of access without significant donor site trauma. Existing methods for isolating DPSC mainly include enzyme digestion and explant techniques. Compared with the enzymatic digestion technique, the outgrowth method is less prone to cell damage and loss during the operation, which is essential for DPSC with fewer tissue sources. Methods In order to maximize the amount of stem cells harvested while reducing the cost of DPSC culture, the feasibility of the optimized explant technique was evaluated in this experiment. Cell morphology, minimum cell emergence time, the total amount of cells harvested, cell survival, and proliferative and differentiation capacity of DPSC obtained with different numbers of explant attachments (A1-A5) were evaluated. Results There was a reduction in the survival rate of the cells in groups A2-A5, and the amount of harvested DPSC decreased in A3-A5 groups, but the DPSC harvested in groups A1-A4 had similar proliferative and differentiation abilities. However, starting from group A5, the survival rate, proliferation and differentiation ability of DPSC decreased significantly, and the adipogenic trend of the cells became more apparent, indicating that the cells had begun to enter the senescence state. Discussion The results of our study demonstrated that the DPSC obtained by the optimized explant method up to 4 times had reliable biological properties and is available for tissue engineering.
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Affiliation(s)
- You Wu
- Department of Stomatology, Chengdu Seventh People's Hospital (Affiliated Cancer Hospital of Chengdu Medical College), Chengdu, China
- The Department of Preventive Dentistry, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
| | - Jiangling Sun
- Department of Science and Education, Guiyang Stomatological Hospital, Guiyang, China
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Wang Wang
- Center for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China
- Department of Periodontics, Preventive and Restorative Dentistry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Yao Wang
- The Department of Preventive Dentistry, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
| | - Reinhard E Friedrich
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Awad MN, Brown SJ, Abraham AN, Sezer D, Han Q, Wang X, Le TC, Elbourne A, Bryant G, Greaves TL, Bryant SJ. Biophysical Characterization and Cryopreservation of Mammalian Cells Using Ionic Liquids. J Phys Chem B 2024; 128:2504-2515. [PMID: 38416751 DOI: 10.1021/acs.jpcb.3c06797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Ionic liquids (ILs) are a diverse class of solvents which can be selected for task-specific properties, making them attractive alternatives to traditional solvents. To tailor ILs for specific biological applications, it is necessary to understand the structure-property relationships of ILs and their interactions with cells. Here, a selection of carboxylate anion-based ILs were investigated as cryoprotectants, which are compounds added to cells before freezing to mitigate lethal freezing damage. The cytotoxicity, cell permeability, thermal behavior, and cryoprotective efficacy of the ILs were assessed with two model mammalian cell lines. We found that the biophysical interactions, including permeability of the ILs, were influenced by considering the IL pair together, rather than as single species acting independently. All of the ILs tested had high cytotoxicity, but ethylammonium acetate demonstrated good cryoprotective efficacy for both cell types tested. These results demonstrate that despite toxicity, ILs may be suitable for certain biological applications. It also demonstrates that more research is required to understand the contribution of ion pairs to structure-property relationships and that knowing the behavior of a single ionic species will not necessarily predict its behavior as part of an IL.
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Affiliation(s)
- Miyah N Awad
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Stuart J Brown
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Amanda N Abraham
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
- ARC Centre of Excellence for Nanoscale BioPhotonics, RMIT University, Melbourne, Victoria 3001, Australia
| | - Dilek Sezer
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Qi Han
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Xiaoying Wang
- School of Engineering, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
- Digital Services, Deakin University, Melbourne, Victoria 3008, Australia
| | - Tu C Le
- School of Engineering, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Aaron Elbourne
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Gary Bryant
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Tamar L Greaves
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Saffron J Bryant
- School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
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Maulida S, Eriani K, Fadli N, Siti-Azizah MN, Kocabas FK, Kocabas M, Wilkes M, Handayani LS, Rahayu SR, Muchlisin ZA. Effect of type and concentration of antioxidant on sperm motility, viability, and DNA integrity of climbing perch Anabas testudineus Bloch, 1792 (Pisces: Anabantidae) post-cryopreservation. Cryobiology 2024; 114:104851. [PMID: 38237749 DOI: 10.1016/j.cryobiol.2024.104851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/14/2024] [Accepted: 01/15/2024] [Indexed: 01/21/2024]
Abstract
Sperm quality is preserved through the crucial involvement of antioxidants, which play a vital role in minimizing the occurrence of reactive oxygen species (ROS) during the cryopreservation process. The suitability of the type and concentration of antioxidants are species-dependent, and this study is crucial in order to improve the quality of the climbing perch sperm post-cryopreservation. Therefore, this study aimed to determine the best type and concentration of antioxidants for cryopreservation of climbing perch Anabas testudineus sperm. To achieve this, 6 types of antioxidants, namely, ascorbic acid, beta-carotene, glutathione, butylated hydroxytoluene (BHT), myo-inositol, and alpha-tocopherol, with inclusion of a control were tested in 3 replications at three concentration levels of 0 mg/L (control), 20 mg/L, 40 mg/L, and 60 mg/L. Sperm was diluted in a glucose-base extender at a ratio of 1:60 (sperm: glucose base), then 10 % DMSO and 5 % egg yolk was added before cryopreservation for two weeks. The results showed that the type and concentration of antioxidants had a significant effect on the motility and viability of cryopreserved climbing perch sperm (P < 0.05), where the best results for ascorbic acid, beta-carotene, glutathione, myo-inositol, and alpha-tocopherol were obtained at a concentration of 60 mg/L, while BHT was at a concentration of 20 mg/L. The best results for glutathione, myo-inositol, and alpha-tocopherol were significantly different from other treatments, while the best results for ascorbic acid and beta-carotene (60 mg/L) were not significantly different from the 40 mg/L concentration, while the best results for BHT were not significantly different from the control treatments. Therefore, the best concentration of glutathione, myo-inositol, and alpha-tocopherol was 60 mg/L, while for ascorbic acid and beta-carotene it was 40 mg/L, and BHT was not recommended. DNA integrity analysis indicated the absence of fragmentation in all samples, including fresh, control, and treated sperm. Based on practical and economic considerations, myo-inositol at 60 mg/L was recommended for cryopreservation of climbing perch A. testudineus sperm.
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Affiliation(s)
- Siti Maulida
- Graduate School of Mathematics and Applied Sciences, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia; Department of Aquaculture, Faculty of Marine and Fisheries, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia
| | - Kartini Eriani
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia
| | - Nur Fadli
- Department of Aquaculture, Faculty of Marine and Fisheries, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia
| | - Mohd N Siti-Azizah
- Institute of Climate Adaptation and Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu, Malaysia
| | | | - Mehmet Kocabas
- Department of Wildlife Ecology and Management, Karadeniz Technical University, Turkey
| | - Martin Wilkes
- School of Life Sciences, University of Essex, Colchester, UK
| | - Luvi S Handayani
- Graduate School of Mathematics and Applied Sciences, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia
| | - Sri R Rahayu
- Graduate School of Mathematics and Applied Sciences, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia
| | - Zainal A Muchlisin
- Department of Aquaculture, Faculty of Marine and Fisheries, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia.
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37
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Nesbitt JE, Jaskiewicz JJ, Bean H, Toner M, Tessier SN, Sandlin RD. Cryogenic enrichment of Plasmodium falciparum gametocytes from spiked whole blood. Cryobiology 2024; 114:104810. [PMID: 38040049 PMCID: PMC10954416 DOI: 10.1016/j.cryobiol.2023.104810] [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: 08/17/2023] [Revised: 11/22/2023] [Accepted: 11/25/2023] [Indexed: 12/03/2023]
Abstract
Each individual cell type typically requires a unique set of conditions for optimal cryopreservation outcome, which relates to its specific response to cryoprotective agent (CPA) toxicity, osmotic behavior and sensitivity to ice crystallization. Cryopreservation of heterogenous cell populations is therefore exceedingly difficult as it requires separate and often conflicting conditions for each cell type. Conversely, these contrasting conditions could be utilized to favor cryogenic preference of a single cell population within a heterogenous sample, leading to its enrichment by elimination of remaining cells. To establish proof-of-concept for this overall approach, a protocol was developed for the cryogenic enrichment of Plasmodium falciparum gametocytes from whole blood. To accomplish this goal, we evaluated the effects of CPAs and cooling conditions during cryopreservation of whole blood samples spiked with P. falciparum gametocytes. We identified that cooling to -80 °C at a rate of -1 °C/min in the presence of 11 % glycerol selectively favors recovery of gametocytes. This protocol eliminates 95.3 ± 1.7 % of total blood cells and recovers 43.2 ± 6.5 % of parasites, leading to a 19-fold enrichment as assessed by microscopic examination of blood smears. This protocol is tunable, where gametocyte enrichment 900-fold may be feasible, however there is an apparent tradeoff in overall parasite recovery. Although translation of this protocol for point-of-care testing for malaria presents many challenges, the overall approach of cryogenic purification may prove useful for alternative diagnostic applications.
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Affiliation(s)
- Jenny E Nesbitt
- Center for Engineering in Medicine & Surgery, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and Shriners Children's Boston, USA
| | - Justyna J Jaskiewicz
- Center for Engineering in Medicine & Surgery, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and Shriners Children's Boston, USA
| | - Hailey Bean
- Center for Engineering in Medicine & Surgery, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and Shriners Children's Boston, USA
| | - Mehmet Toner
- Center for Engineering in Medicine & Surgery, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and Shriners Children's Boston, USA
| | - Shannon N Tessier
- Center for Engineering in Medicine & Surgery, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and Shriners Children's Boston, USA
| | - Rebecca D Sandlin
- Center for Engineering in Medicine & Surgery, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and Shriners Children's Boston, USA.
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38
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Asadi E, Najafi A, Benson JD. Comparison of liquid nitrogen-free slow freezing protocols toward enabling a practical option for centralized cryobanking of ovarian tissue. Cryobiology 2024; 114:104836. [PMID: 38092234 DOI: 10.1016/j.cryobiol.2023.104836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/20/2023] [Accepted: 12/05/2023] [Indexed: 12/22/2023]
Abstract
Geographically distributed ovarian tissue cryobanks remain limited due to the high facility and staff costs, and cold transportation to centers is associated with ischemia-induced tissue damage that increases with transport distance. It is ideal to perform the cryopreservation procedure at a tissue removal site or local hospital before shipment to cost-effective centralized cryobanks. However, conventional liquid nitrogen-based freezers are not portable and require expensive infrastructure. To study the possibility of an ovarian tissue cryopreservation network not dependent on liquid nitrogen, we cryopreserved bovine ovarian tissue using three cooling techniques: a controlled rate freezer using liquid nitrogen, a liquid nitrogen-free controlled rate freezer, and liquid nitrogen-free passive cooling. Upon thawing, we evaluated a panel of viability metrics in frozen and fresh groups to examine the potency of the portable liquid nitrogen-free controlled and uncontrolled rate freezers in preserving the ovarian tissue compared to the non-portable conventional controlled rate freezer. We found similar outcomes for reactive oxygen species (ROS), total antioxidant capacity (TAC), follicular morphology, tissue viability, and fibrosis in the controlled rate freezer groups. However, passive slow cooling was associated with the lowest tissue viability, follicle morphology, and TAC, and the highest tissue fibrosis and ROS levels compared to all other groups. A stronger correlation was found between follicle morphology, ovarian tissue viability, and fibrosis with the TAC/ROS ratio compared to ROS and TAC alone. The current study undergirds the possibility of centralized cryobanks using a controlled rate liquid nitrogen-free freezer to prevent ischemia-induced damage during ovarian tissue shipment.
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Affiliation(s)
- Ebrahim Asadi
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada.
| | - Atefeh Najafi
- 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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Hungerford AJ, Bakos HW, Aitken RJ. Addition of Vitamin C Mitigates the Loss of Antioxidant Capacity, Vitality and DNA Integrity in Cryopreserved Human Semen Samples. Antioxidants (Basel) 2024; 13:247. [PMID: 38397845 PMCID: PMC10885938 DOI: 10.3390/antiox13020247] [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: 01/25/2024] [Revised: 02/14/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024] Open
Abstract
Cryopreservation of human spermatozoa is a necessity for males suffering from infertility who cannot produce fresh semen for insemination. However, current ART cryopreservation protocols are associated with losses of sperm motility, vitality and DNA integrity, which are thought to be linked to the induction of oxidative damage and the toxic properties of commercial cryoprotectants (CPAs). Preventing or mitigating these losses would be hugely beneficial to sperm survival during ART. Therefore, in this in vitro investigation, lipid peroxidation, production of reactive oxygen species, movement characteristics, antioxidant capacity, vitality, and DNA integrity were examined in semen samples both pre- and post-cryopreservation with CPA supplementation. The findings revealed a 50% reduction in antioxidant capacity with CPA addition, which was accompanied by significant increases in generation of reactive oxygen species and formation of lipid aldehydes. These changes were, in turn, correlated with reductions in sperm viability, motility and DNA integrity. Antioxidant supplementation generated bell-shaped dose-response curves with both resveratrol and vitamin C, emphasising the vulnerability of these cells to both oxidative and reductive stress. At the optimal dose, vitamin C was able to significantly enhance vitality and reduce DNA damage recorded in cryopreserved human spermatozoa. An improvement in sperm motility did not reach statistical significance, possibly because additional pathophysiological mechanisms limit the potential effectiveness of antioxidants in rescuing this aspect of sperm function. The vulnerability of human spermatozoa to reductive stress and the complex nature of sperm cryoinjury will present major challenges in creating the next generation of cryoprotective media.
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Affiliation(s)
- Alena J. Hungerford
- School of Environmental and Life Sciences, College of Engineering, Science and Environmental Science, University of Newcastle, Callaghan, NSW 2308, Australia; (A.J.H.); (H.W.B.)
| | - Hassan W. Bakos
- School of Environmental and Life Sciences, College of Engineering, Science and Environmental Science, University of Newcastle, Callaghan, NSW 2308, Australia; (A.J.H.); (H.W.B.)
- Memphasys Ltd., Sydney, NSW 2140, Australia
| | - Robert J. Aitken
- School of Environmental and Life Sciences, College of Engineering, Science and Environmental Science, University of Newcastle, Callaghan, NSW 2308, Australia; (A.J.H.); (H.W.B.)
- Memphasys Ltd., Sydney, NSW 2140, Australia
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Yadegari F, Gabler Pizarro LA, Marquez-Curtis LA, Elliott JAW. Temperature Dependence of Membrane Permeability Parameters for Five Cell Types Using Nonideal Thermodynamic Assumptions to Mathematically Model Cryopreservation Protocols. J Phys Chem B 2024; 128:1139-1160. [PMID: 38291962 PMCID: PMC10860702 DOI: 10.1021/acs.jpcb.3c04534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/15/2023] [Accepted: 11/17/2023] [Indexed: 02/01/2024]
Abstract
Cryopreservation is the process of preserving biological matter at subzero temperatures for long-term storage. During cryopreservation, cells are susceptible to various injuries that can be mitigated by controlling the cooling and warming profiles and cryoprotective agent (CPA) addition and removal procedures. Mathematical modeling of the changing cell volume at different temperatures can greatly reduce the experiments needed to optimize cryopreservation protocols. Such mathematical modeling requires as inputs the cell membrane permeabilities to water and CPA and the osmotically inactive fraction of the cell. Since the intra- and extracellular solutions are generally thermodynamically nonideal, our group has been incorporating the osmotic virial equation to model the solution thermodynamics that underlie the cell volume change equations, adding the second and third osmotic virial coefficients of the grouped intracellular solute to the cell osmotic parameters that must be measured. In our previous work, we reported methods to obtain cell osmotic parameters at room temperature by fitting experimental cell volume kinetic data with equations that incorporated nonideal solution thermodynamics assumptions. Since the relevant cell volume excursions occur at different temperatures, the temperature dependence of the osmotic parameters plays an important role. In this work, we present a new two-part fitting method to obtain five cell-type-specific parameters (water permeability, dimethyl sulfoxide permeability, osmotically inactive fraction, and the second and third osmotic virial coefficients of the intracellular solution) from experimental measurements of equilibrium cell volume and cell volume as a function of time at room temperature and 0 °C for five cell types, namely, human umbilical vein endothelial cells (HUVECs), H9c2 rat myoblasts, porcine corneal endothelial cells (PCECs), the Jurkat T-lymphocyte cell line, and human cerebral microvascular endothelial cells (hCMECs/D3 cell line). The fitting method in this work is based on both equilibrium and kinetic cell volume data, enabling us to solve some technical challenges and expand our previously reported measurement technique to 0 °C. Finally, we use the measured parameters to model the cell volume changes for a HUVEC cryopreservation protocol to demonstrate the impact of the nonideal thermodynamic assumptions on predicting the changing cell volume during freezing and thawing.
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Affiliation(s)
- Faranak Yadegari
- Department
of Chemical and Materials Engineering, University
of Alberta, Edmonton, AB, T6G 1H9, Canada
- Department
of Laboratory Medicine and Pathology, University
of Alberta, Edmonton, AB, T6G 1C9, Canada
| | - Laura A. Gabler Pizarro
- Department
of Chemical and Materials Engineering, University
of Alberta, Edmonton, AB, T6G 1H9, Canada
| | - Leah A. Marquez-Curtis
- Department
of Chemical and Materials Engineering, University
of Alberta, Edmonton, AB, T6G 1H9, Canada
- Department
of Laboratory Medicine and Pathology, University
of Alberta, Edmonton, AB, T6G 1C9, Canada
| | - Janet A. W. Elliott
- Department
of Chemical and Materials Engineering, University
of Alberta, Edmonton, AB, T6G 1H9, Canada
- Department
of Laboratory Medicine and Pathology, University
of Alberta, Edmonton, AB, T6G 1C9, Canada
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Zhang J, Yin Z, Liang Z, Bai Y, Zhang T, Yang J, Li X, Xue L. Impacts of cryopreservation on phenotype and functionality of mononuclear cells in peripheral blood and ascites. J Transl Int Med 2024; 12:51-63. [PMID: 38525442 PMCID: PMC10956725 DOI: 10.2478/jtim-2023-0136] [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] [Indexed: 03/26/2024] Open
Abstract
Background Mononuclear cells in peripheral blood and ascites are important clinical resources commonly used in translational and basic research. However, the impact of different cryopreservation durations and extra freeze-thaw cycles on the number and function of mononuclear cells is unknown. Methods Peripheral blood samples (n = 21) and ascites samples (n = 8) were collected from healthy volunteers and ovarian cancer patients. Mononuclear cells were isolated, frozen, and thawed at 6 and 12 months. The impact of cryopreservation on cell viability, the phenotype, and the activation and proliferation of T cells were analyzed by flow cytometry. Single-cell sequencing was applied to investigate the underlying mechanism. Results The cell number and viability of mononuclear cells in peripheral blood and ascites were significantly decreased after cryopreservation. The T lymphocytes, especially CD4+ T cells, were affected the most significantly. By contrast, monocytes, natural killer (NK) cells, natural killer T (NKT) cells, and B cells were more tolerant. Meanwhile, T cell proliferation and IL-2 secretion are significantly affected after long-term cryopreservation. Mechanistically, the cell death induced by elevated reactive oxygen species (ROS) was involved in the reduction of CD4+ T cells after cryopreservation. Conclusions Our data indicates that different subtypes of mononuclear cells exhibit different tolerance capacities upon cryopreservation. Thus, our research can provide evidence and support for individuals who are conducting experiments using frozen clinical patient-derived mononuclear cells, for basic research or clinical trials. In addition, extra caution is worthwhile when researchers compare immune cell functionality from peripheral blood or ascites across datasets obtained in different cryopreservation conditions.
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Affiliation(s)
- Jie Zhang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
- Biobank, Peking University Third Hospital, Beijing, China
| | - Zhongnan Yin
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
- Biobank, Peking University Third Hospital, Beijing, China
| | - Zhaoyuan Liang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
| | - Yang Bai
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
| | - Ting Zhang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
- Biobank, Peking University Third Hospital, Beijing, China
| | - Jianling Yang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
| | - Xianlong Li
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
| | - Lixiang Xue
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China
- Biobank, Peking University Third Hospital, Beijing, China
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42
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Sampathkumar K, Kerwin BA. Roadmap for Drug Product Development and Manufacturing of Biologics. J Pharm Sci 2024; 113:314-331. [PMID: 37944666 DOI: 10.1016/j.xphs.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/04/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023]
Abstract
Therapeutic biology encompasses different modalities, and their manufacturing processes may be vastly different. However, there are many similarities that run across the different modalities during the drug product (DP) development process and manufacturing. Similarities include the need for Quality Target Product Profile (QTTP), analytical development, formulation development, container/closure studies, drug product process development, manufacturing and technical requirements set out by numerous regulatory documents such as the FDA, EMA, and ICH for pharmaceuticals for human use and other country specific requirements. While there is a plethora of knowledge on studies needed for development of a drug product, there is no specific guidance set out in a phase dependent manner delineating what studies should be completed in alignment with the different phases of clinical development from pre-clinical through commercialization. Because of this reason, we assembled a high-level drug product development and manufacturing roadmap. The roadmap is applicable across the different modalities with the intention of providing a unified framework from early phase development to commercialization of biologic drug products.
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Affiliation(s)
- Krishnan Sampathkumar
- SSK Biosolutions LLC, 14022 Welland Terrace, North Potomac, MD 20878, USA; Currently at Invetx, Inc., One Boston Place, Suite 3930, 201 Washington Street, Boston, MA 02108, USA
| | - Bruce A Kerwin
- Kerwin BioPharma Consulting LLC, 14138 Farmview Ln NE, Bainbridge Island, WA 98110, USA; Coriolis Scientific Advisory Board, Coriolis Pharma, Fraunhoferstr. 18 b, 82152 Martinsried, Germany.
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43
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Qu W, Yu X, Shi H, Chen Z, Luo M. Editorial: Mammalian spermatogenesis: genetic and environmental factors. Front Cell Dev Biol 2024; 12:1372799. [PMID: 38357001 PMCID: PMC10864451 DOI: 10.3389/fcell.2024.1372799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/16/2024] Open
Affiliation(s)
| | | | | | | | - Mengcheng Luo
- Provincial Key Laboratory of Developmentally Originated Disease, TaiKang Center for Life and Medical Sciences, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, China
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Zhu Y, Liu H, Zheng L, Luo Y, Zhou G, Li J, Hou Y, Fu X. Vitrification of Mammalian Oocytes: Recent Studies on Mitochondrial Dysfunction. Biopreserv Biobank 2024. [PMID: 38227396 DOI: 10.1089/bio.2023.0062] [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: 01/17/2024] Open
Abstract
Vitrification of reproductive cells is definitely essential and integral in animal breeding, as well as in assisted reproduction. However, issues accompanied with this technology such as decreased oocyte competency and relatively low embryo survival rates appear to be a tough conundrum that has long perplexed us. As significant organelles in cell metabolism, mitochondria play pivotal roles in numerous pathways. Nonetheless, extensive evidence has demonstrated that vitrification can seriously impair mitochondrial function in mammalian oocytes. Thus, in this article, we summarize the current progress in oocyte vitrification and particularly outline the common mitochondrial abnormalities alongside subsequent injury cascades seen in mammalian oocytes following vitrification. Based on existing literature, we tentatively come up with the potential mechanisms related to mitochondrial dysfunction and generalize efficacious ways which have been recommended to restore mitochondrial function.
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Affiliation(s)
- Yixiao Zhu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - Hongyu Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - Lv Zheng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - Yuwen Luo
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Guizhen Zhou
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - Jun Li
- Department of Reproductive Medicine, Reproductive Medical Center, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yunpeng Hou
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiangwei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
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45
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Lomba L, García CB, Benito L, Sangüesa E, Santander S, Zuriaga E. Advances in Cryopreservatives: Exploring Safer Alternatives. ACS Biomater Sci Eng 2024; 10:178-190. [PMID: 38141007 DOI: 10.1021/acsbiomaterials.3c00859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
Cryopreservation of cells, tissues, and organs is widely used in the biomedical and research world. There are different cryopreservatives that are used for this process; however, many of them, such as DMSO, are used despite the problems they present, mainly due to the toxicity it presents to certain types of samples. The aim of this Review is to highlight the different types of substances used in the cryopreservation process. It has been shown that some of these substances are well-known, as in the case of the families of alcohols, sugars, sulfoxides, etc. However, in recent years, other compounds have appeared, such as ionic liquids, deep eutectic solvents, or certain polymers, which open the door to new cryopreservation methods and are also less toxic to frozen samples.
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Affiliation(s)
- Laura Lomba
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
| | - Cristina B García
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
| | - Lucía Benito
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
| | - Estela Sangüesa
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
| | - Sonia Santander
- Faculty of Health and Sports Sciences, University of Zaragoza, Campus of Huesca, 22002 Huesca, Spain
| | - Estefanía Zuriaga
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
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Aragón-Navas A, López-Cano JJ, Johnson M, A S, Vicario-de-la-Torre M, Andrés-Guerrero V, Tai H, Wang W, Bravo-Osuna I, Herrero-Vanrell R. Smart biodegradable hydrogels: Drug-delivery platforms for treatment of chronic ophthalmic diseases affecting the back of the eye. Int J Pharm 2024; 649:123653. [PMID: 38036194 DOI: 10.1016/j.ijpharm.2023.123653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/21/2023] [Accepted: 11/27/2023] [Indexed: 12/02/2023]
Abstract
This paper aims to develop smart hydrogels based on functionalized hyaluronic acid (HA) and PLGA-PEG-PLGA (PLGA,poly-(DL-lactic-co-glycolic acid); PEG,polyethylene glycol) for use as intraocular drug-delivery platforms. Anti-inflammatory agent dexamethasone-phosphate (0.2 %w/v) was the drug selected to load on the hydrogels. Initially, different ratios of HA-aldehyde (HA-CHO) and thiolated-HA (HA-SH) were assayed, selecting as optimal concentrations 2 and 3 % (w/v), respectively. Optimized HA hydrogel formulations presented fast degradation (8 days) and drug release (91.46 ± 3.80 % in 24 h), thus being suitable for short-term intravitreal treatments. Different technology-based strategies were adopted to accelerate PLGA-PEG-PLGA water solubility, e.g. substituting PEG1500 in synthesis for higher molecular weight PEG3000 or adding cryopreserving substances to the buffer dissolution. PEG1500 was chosen to continue optimization and the final PLGA-PEG-PLGA hydrogels (PPP1500) were dissolved in trehalose or mannitol carbonate buffer. These presented more sustained release (71.77 ± 1.59 % and 73.41 ± 0.83 % in 24 h, respectively) and slower degradation (>14 days). In vitro cytotoxicity studies in the retinal-pigmented epithelial cell line (RPE-1) demonstrated good tolerance (viability values > 90 %). PLGA-PEG-PLGA hydrogels are proposed as suitable candidates for long-term intravitreal treatments. Preliminary wound healing studies with PLGA-PEG-PLGA hydrogels suggested faster proliferation at 8 h than controls.
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Affiliation(s)
- Alba Aragón-Navas
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain; Health Research Institute, San Carlos Clinical Hospital (IdISSC), Madrid, Spain
| | - José Javier López-Cano
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain; Health Research Institute, San Carlos Clinical Hospital (IdISSC), Madrid, Spain
| | - Melissa Johnson
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Sigen A
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Marta Vicario-de-la-Torre
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain; Health Research Institute, San Carlos Clinical Hospital (IdISSC), Madrid, Spain
| | - Vanessa Andrés-Guerrero
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain; Health Research Institute, San Carlos Clinical Hospital (IdISSC), Madrid, Spain
| | - Hongyun Tai
- Blafar Ltd., Belfield Innovation Park, University College Dublin, Belfield, D04 V1W8 Dublin 4, Ireland
| | - Wenxin Wang
- Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Irene Bravo-Osuna
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain; Health Research Institute, San Carlos Clinical Hospital (IdISSC), Madrid, Spain; National Ocular Pathology Network (OFTARED), Carlos III Health Institute, Madrid, Spain; University Institute for Industrial Pharmacy (IUFI), School of Pharmacy, Complutense University of Madrid, Madrid, Spain
| | - Rocío Herrero-Vanrell
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Madrid, Spain; Health Research Institute, San Carlos Clinical Hospital (IdISSC), Madrid, Spain; National Ocular Pathology Network (OFTARED), Carlos III Health Institute, Madrid, Spain; University Institute for Industrial Pharmacy (IUFI), School of Pharmacy, Complutense University of Madrid, Madrid, Spain.
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47
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Franko Y, de Almeida Monteiro Melo Ferraz M. Effects of bovine ovarian storage conditions and vitrification on isolated preantral follicle viability. REPRODUCTION AND FERTILITY 2024; 5:e230071. [PMID: 38271815 PMCID: PMC10831526 DOI: 10.1530/raf-23-0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/22/2023] [Indexed: 01/27/2024] Open
Abstract
Lay summary The decreasing rate of successful pregnancies, both naturally and through assisted conception, has led to innovations in the way eggs, sperm, and embryos are stored. Despite these advances, the use of assisted reproductive techniques to preserve endangered or rare species remains unexplored. Since the location where samples are collected and facilities are often far apart, we aim to address part of this challenge by comparing different methods to store and handle ovarian tissue before freezing. This may pave the way for further research in preserving endangered species, despite the challenges posed by the distance between sample collection sites and suitable facilities.
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Affiliation(s)
- Yasmin Franko
- Clinic of Ruminants, Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität München, Oberschleißheim, Germany
- Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Marcia de Almeida Monteiro Melo Ferraz
- Clinic of Ruminants, Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität München, Oberschleißheim, Germany
- Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
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48
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Mokbel K, Kodresko A, Ghazal H, Mokbel R, Trembley J, Jouhara H. Cryogenic Media in Biomedical Applications: Current Advances, Challenges, and Future Perspectives. In Vivo 2024; 38:1-39. [PMID: 38148045 PMCID: PMC10756490 DOI: 10.21873/invivo.13407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 12/28/2023]
Abstract
This paper explores the crucial role of cryogenic mediums in driving breakthroughs within the biomedical sector. The objective was to investigate, critically discuss, and present the current knowledge and state-of-the-art practices, along with the challenges and perspectives of the most common applications. Through an extensive literature review, this work aims to supplement existing research, offering a comprehensive and up-to-date understanding of the subject. Biomedical research involving cryogenic mediums is advancing on multiple fronts, including the development of advanced medical technologies, clinical treatments for life-threatening conditions, high-quality biospecimen preservation, and antimicrobial interventions in industrial food processing. These advances open new horizons and present cutting-edge opportunities for research and the medical community. While the current body of evidence showcases the impressive impact of cryogenic mediums, such as nitrogen, helium, argon, and oxygen, on revolutionary developments, reaching definitive conclusions on their efficiency and safety remains challenging due to process complexity and research scarcity with a moderate certainty of evidence. Knowledge gaps further underline the need for additional studies to facilitate cryogenic research in developing innovative technological processes in biomedicine. These advancements have the potential to reshape the modern world and significantly enhance the quality of life for people worldwide.
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Affiliation(s)
- Kefah Mokbel
- The London Breast Institute, Princess Grace Hospital, London, U.K
| | - Alevtina Kodresko
- Heat Pipe and Thermal Management Research Group, College of Engineering, Design and Physical Sciences, Brunel University, London, U.K
| | - Heba Ghazal
- Kingston University, School of Pharmacy and Chemistry, Kingston Upon Thames, U.K
| | - Ramia Mokbel
- The Princess Grace Hospital, part of HCA Healthcare UK, London, U.K
| | - Jon Trembley
- Air Products PLC, Hersham Place Technology Park, Surrey, U.K
| | - Hussam Jouhara
- Heat Pipe and Thermal Management Research Group, College of Engineering, Design and Physical Sciences, Brunel University, London, U.K.;
- Vytautas Magnus University, Kaunas, Lithuania
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49
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Jung SE, Ryu BY. New strategies for germ cell cryopreservation: Cryoinjury modulation. Clin Exp Reprod Med 2023; 50:213-222. [PMID: 37995749 PMCID: PMC10711243 DOI: 10.5653/cerm.2023.06016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/29/2023] [Accepted: 07/17/2023] [Indexed: 11/25/2023] Open
Abstract
Cryopreservation is an option for the preservation of pre- or post-pubertal female or male fertility. This technique not only is beneficial for human clinical applications, but also plays a crucial role in the breeding of livestock and endangered species. Unfortunately, frozen germ cells, including oocytes, sperm, embryos, and spermatogonial stem cells, are subject to cryoinjury. As a result, various cryoprotective agents and freezing techniques have been developed to mitigate this damage. Despite extensive research aimed at reducing apoptotic cell death during freezing, a low survival rate and impaired cell function are still observed after freeze-thawing. In recent decades, several cell death pathways other than apoptosis have been identified. However, the relationship between these pathways and cryoinjury is not yet fully understood, although necroptosis and autophagy appear to be linked to cryoinjury. Therefore, gaining a deeper understanding of the molecular mechanisms of cryoinjury could aid in the development of new strategies to enhance the effectiveness of the freezing of reproductive tissues. In this review, we focus on the pathways through which cryoinjury leads to cell death and propose novel approaches to enhance freezing efficacy based on signaling molecules.
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Affiliation(s)
- Sang-Eun Jung
- Department of Animal Science & Technology, Chung-Ang University, Anseong, Republic of Korea
- Division of Hematology & Oncology, Department of Medicine, Washington University in St. Louis, Saint Louis, MO, USA
| | - Buom-Yong Ryu
- Department of Animal Science & Technology, Chung-Ang University, Anseong, Republic of Korea
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50
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Mohammed L, Marquez-Curtis LA, Elliott JAW. Cryopreservation of human cerebral microvascular endothelial cells with glycerol. Cryobiology 2023; 113:104551. [PMID: 37328025 DOI: 10.1016/j.cryobiol.2023.104551] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/14/2023] [Accepted: 06/06/2023] [Indexed: 06/18/2023]
Abstract
The cryopreservation of human cerebral microvascular endothelial cells (hCMEC) has facilitated their commercial availability for research studying the blood-brain barrier. The currently employed cryopreservation protocol uses 10% dimethyl sulfoxide (Me2SO) in cell medium, or 5% Me2SO in 95% fetal bovine serum (FBS) as cryoprotective agents (CPAs). However, Me2SO is toxic to cells and FBS is animal-derived and not chemically defined, so reducing the concentrations of these components is desirable. Recently, we showed that cryopreserving hCMEC in cell medium with 5% Me2SO and 6% hydroxyethyl starch (HES) results in over 90% post-thaw cell viability. This previous work was performed using an interrupted slow cooling (graded freezing) approach followed by SYTO13/GelRed staining to assay for membrane integrity. In this paper, we repeated graded freezing of hCMEC in cell medium containing 5% Me2SO and 6% HES, but this time using Calcein AM/propidium iodide staining to ensure that the stain is an equivalent alternative to SYTO13/GelRed for assessment of cell viability, and that results are comparable to those previously published. Next, using graded freezing experiments and Calcein AM/propidium iodide staining, we examined the effectiveness of non-toxic glycerol as a CPA at different concentrations, loading times, and cooling rates. The cryobiological response of hCMEC was used to develop a protocol that optimizes both the permeating and non-permeating capabilities of glycerol. HCMEC in cell medium loaded with 10% glycerol for 1 h at room temperature, ice nucleated at -5 °C and held for 3 min, and then cooled at -1 °C/min to -30 °C before plunging into liquid nitrogen had post-thaw viability of 87.7% ± 1.8%. Matrigel tube formation assay and immunocytochemical staining of junction protein ZO-1 were carried out on post-thaw hCMEC to ensure that the cryopreserved cells were viable and functional, in addition to being membrane-intact.
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Affiliation(s)
- Lanah Mohammed
- Department of Cell Biology, University of Alberta, Edmonton, AB, Canada
| | - Leah A Marquez-Curtis
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada.
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