1
|
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.
Collapse
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
| |
Collapse
|
2
|
Greenstreet L, Afanassiev A, Kijima Y, Heitz M, Ishiguro S, King S, Yachie N, Schiebinger G. DNA-GPS: A theoretical framework for optics-free spatial genomics and synthesis of current methods. Cell Syst 2023; 14:844-859.e4. [PMID: 37751737 DOI: 10.1016/j.cels.2023.08.005] [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: 04/27/2022] [Revised: 04/19/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023]
Abstract
While single-cell sequencing technologies provide unprecedented insights into genomic profiles at the cellular level, they lose the spatial context of cells. Over the past decade, diverse spatial transcriptomics and multi-omics technologies have been developed to analyze molecular profiles of tissues. In this article, we categorize current spatial genomics technologies into three classes: optical imaging, positional indexing, and mathematical cartography. We discuss trade-offs in resolution and scale, identify limitations, and highlight synergies between existing single-cell and spatial genomics methods. Further, we propose DNA-GPS (global positioning system), a theoretical framework for large-scale optics-free spatial genomics that combines ideas from mathematical cartography and positional indexing. DNA-GPS has the potential to achieve scalable spatial genomics for multiple measurement modalities, and by eliminating the need for optical measurement, it has the potential to position cells in three-dimensions (3D).
Collapse
Affiliation(s)
- Laura Greenstreet
- Department of Mathematics, The University of British Columbia, Vancouver, BC, Canada
| | - Anton Afanassiev
- Department of Mathematics, The University of British Columbia, Vancouver, BC, Canada
| | - Yusuke Kijima
- School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada; Department of Aquatic Bioscience, The University of Tokyo, Tokyo, Japan
| | - Matthieu Heitz
- Department of Mathematics, The University of British Columbia, Vancouver, BC, Canada
| | - Soh Ishiguro
- School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada
| | - Samuel King
- School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada
| | - Nozomu Yachie
- School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada; Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan; Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe), Osaka University, Suita, Osaka, Japan; Graduate School of Media and Governance, Keio University, Fujisawa, Japan.
| | - Geoffrey Schiebinger
- Department of Mathematics, The University of British Columbia, Vancouver, BC, Canada; School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada.
| |
Collapse
|
3
|
Sturgess V, Azubuike UF, Tanner K. Vascular regulation of disseminated tumor cells during metastatic spread. BIOPHYSICS REVIEWS 2023; 4:011310. [PMID: 38510161 PMCID: PMC10903479 DOI: 10.1063/5.0106675] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 02/17/2023] [Indexed: 03/22/2024]
Abstract
Cancer cells can travel to other organs via interconnected vascular systems to form new lesions in a process known as metastatic spread. Unfortunately, metastasis remains the leading cause of patient lethality. In recent years, it has been demonstrated that physical cues are just as important as chemical and genetic perturbations in driving changes in gene expression, cell motility, and survival. In this concise review, we focus on the physical cues that cancer cells experience as they migrate through the lymphatic and blood vascular networks. We also present an overview of steps that may facilitate organ specific metastasis.
Collapse
Affiliation(s)
- Victoria Sturgess
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 2132, Bethesda MD 20892, USA
| | - Udochi F. Azubuike
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 2132, Bethesda MD 20892, USA
| | - Kandice Tanner
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 2132, Bethesda MD 20892, USA
| |
Collapse
|
4
|
Baek JM, Jung WH, Yu ES, Ahn DJ, Ryu YS. In Vitro Membrane Platform for the Visualization of Water Impermeability across the Liquid-Ordered Phase under Hypertonic Conditions. J Am Chem Soc 2022; 144:21887-21896. [PMID: 36367984 DOI: 10.1021/jacs.2c06626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Passive water penetration across the cell membrane by osmotic diffusion is essential for the homeostasis of cell volume, in addition to the protein-assisted active transportation of water. Since membrane components can regulate water permeability, controlling compositional variation during the volume regulatory process is a prerequisite for investigating the underlying mechanisms of water permeation and related membrane dynamics. However, the lack of a viable in vitro membrane platform in hypertonic solutions impedes advanced knowledge of cell volume regulation processes, especially cholesterol-enriched lipid domains called lipid rafts. By reconstituting the liquid-ordered (Lo) domain as a likeness of lipid rafts, we verified suppressed water permeation across the Lo domains, which had yet to be confirmed with experimental demonstrations despite a simulation approach. With the help of direct transfer of the Lo domains from vesicles to supported lipid membranes, the biological roles of lipid composition in suppressed water translocation were experimentally confirmed. Additionally, the improvement in membrane stability under hypertonic conditions was demonstrated based on molecular dynamics simulations.
Collapse
Affiliation(s)
- Ji Min Baek
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.,Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Woo Hyuk Jung
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Eui-Sang Yu
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Dong June Ahn
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea.,KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Yong-Sang Ryu
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.,KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| |
Collapse
|
5
|
The Effect of Different Extenders on the Quality Characteristics of European Red Deer Epididymal Sperm Stored at 5 °C. Animals (Basel) 2022; 12:ani12192669. [PMID: 36230410 PMCID: PMC9559589 DOI: 10.3390/ani12192669] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to evaluate the effect of different extenders on the quality of European red deer epididymal sperm stored at 5 °C. Epididymal spermatozoa were collected post mortem from 10 stags and diluted with three extenders (Bovidyl®, BoviFree®, and BioXcell®) and stored at 5 °C. Sperm motility (TMOT), motility parameters (system CASA), plasma membrane integrity (SYBR-14+/PI−), acrosomal membrane integrity (FITC-PNA−/PI−), mitochondrial activity (JC-1/PI), viability, and apoptotic-like changes (YOPRO/PI) were evaluated. The analyses were conducted on the first and successive days of storage (D1−D7). The applied extender, storage time, and the interactions between these factors significantly (p < 0.001) affected most of the analyzed parameters whose values were highest in sperm samples stored in Bovidyl®, regardless of storage time. In Bovidyl®, BoviFree®, and BioXcell® extenders, TMOT values were estimated at 83%, 63%, and 59%, respectively, on D3. The extenders significantly influenced DNA integrity on D7. The percentage of dead sperm increased from D3. The quality of stored sperm cells was significantly influenced by the extenders’ biochemical composition. BoviFree® and BioXcell® contain glycerol which could contribute to deteriorating the quality of spermatozoa stored at 5 °C. Sperm cells stored in the egg yolk-based extender (Bovidyl®) were characterized by the highest viability and functionality.
Collapse
|
6
|
Magnotti C, Cerqueira V, Villasante A, Romero J, Watanabe I, Oliveira R, Farias J, Merino O, Valdebenito, Figueroa E. Spermatological characteristics and effects of cryopreservation in Lebranche mullet spermatozoa (Mugil liza Valenciennes, 1836): first report of ultra-rapid freezing. Anim Reprod Sci 2022; 241:106986. [DOI: 10.1016/j.anireprosci.2022.106986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 04/14/2022] [Accepted: 05/01/2022] [Indexed: 11/26/2022]
|
7
|
Vozaf J, Makarevich AV, Balazi A, Vasicek J, Svoradova A, Olexikova L, Chrenek P. Cryopreservation of ram semen: Manual versus programmable freezing and different lengths of equilibration. Anim Sci J 2021; 92:e13670. [PMID: 34951508 DOI: 10.1111/asj.13670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 12/19/2022]
Abstract
The aim of our study was to examine effects of the length of semen equilibration as well as two freezing techniques on ram sperm post-thaw quality. The ejaculates of Wallachian sheep rams (n = 12) were collected by an electro-ejaculation, equilibrated in a Triladyl® (0, 2, 4, 6, and 8 h) containing glycerol and egg yolk and frozen by programmable freezing (PF) or manual freezing (MF). After thawing, sperm samples were subjected to the motility (computer-assisted sperm analysis [CASA]), viability (SYBR-14/PI), and fertilizing ability (FA) (in vitro penetration/fertilization test on bovine oocytes) assays. It was found that the equilibration of 6 h (E-6) ensured higher post-thaw sperm motility and progressive movement compared with other lengths tested, irrespective of a freezing technique. The E-6 sperm viability did not differ between PF and MF but was lower (P < 0.05) than control. Sperm FA (E-6) was similar in PF (60.44%) and MF (62%) but slightly lower than in fresh (72.8%). Our data demonstrate that the use of MF was comparable with PF, which can be applied in the field conditions without need in a piece of cost-expensive equipment, which can greatly benefit the gene bank of animal genetic resources.
Collapse
Affiliation(s)
- Jakub Vozaf
- Institute of Biotechnology, Faculty of Biotechnology and Food Science, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra, 949 76, Slovak Republic
| | - Alexander V Makarevich
- NPPC, Research Institute for Animal Production in Nitra, Hlohovecka 2, Lužianky, 951 41, Slovak Republic
| | - Andrej Balazi
- NPPC, Research Institute for Animal Production in Nitra, Hlohovecka 2, Lužianky, 951 41, Slovak Republic
| | - Jaromir Vasicek
- Institute of Biotechnology, Faculty of Biotechnology and Food Science, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra, 949 76, Slovak Republic.,NPPC, Research Institute for Animal Production in Nitra, Hlohovecka 2, Lužianky, 951 41, Slovak Republic
| | - Andrea Svoradova
- NPPC, Research Institute for Animal Production in Nitra, Hlohovecka 2, Lužianky, 951 41, Slovak Republic.,Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1/1665, Brno, 613 00, Czech Republic
| | - Lucia Olexikova
- NPPC, Research Institute for Animal Production in Nitra, Hlohovecka 2, Lužianky, 951 41, Slovak Republic
| | - Peter Chrenek
- Institute of Biotechnology, Faculty of Biotechnology and Food Science, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra, 949 76, Slovak Republic.,NPPC, Research Institute for Animal Production in Nitra, Hlohovecka 2, Lužianky, 951 41, Slovak Republic
| |
Collapse
|
8
|
Gabler Pizarro LA, McGann LE, Elliott JAW. Permeability and Osmotic Parameters of Human Umbilical Vein Endothelial Cells and H9C2 Cells under Non-ideal Thermodynamic Assumptions: A Novel Iterative Fitting Method. J Phys Chem B 2021; 125:12934-12946. [PMID: 34788536 DOI: 10.1021/acs.jpcb.1c06637] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cryopreservation is the use of very low subzero temperatures to preserve cells and tissues for later use. This is achieved by controlled cooling in the presence of cryoprotectants that moderate the amount of ice formed. Mathematical modeling of the cryopreservation process is a useful tool to investigate the different variables that affect the results of this process. The changing cell volume during cryopreservation can be modeled using cell membrane water and cryoprotectant permeabilities and the osmotically inactive fraction of the intracellular contents. These three cell-specific parameters have been found previously for different cell types under ideal and dilute assumptions, but biological solutions at subzero temperatures are far from ideal and dilute, especially when cryoprotectants are included. In this work, the osmotic virial equation is used to model the changing cell volume under non-ideal assumptions, and the intracellular environment is described using the grouped solute, which consists of all impermeant intracellular solutes grouped together, leading to two additional cell-specific parameters, the second and third osmotic virial coefficients of the grouped solute. Herein, we present a novel fitting method to efficiently determine these five cell-specific parameters by fitting kinetic cell volume data under non-ideal assumptions and report the results of applying this method to obtain the parameters for two cell types: human umbilical vein endothelial cells and H9C2 rat myoblasts.
Collapse
Affiliation(s)
- Laura A Gabler Pizarro
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton T6G 1H9, Alberta, Canada
| | - Locksley E McGann
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton T6G 2B7, Alberta, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton T6G 1H9, Alberta, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton T6G 2B7, Alberta, Canada
| |
Collapse
|
9
|
Bucak MN, Keskin N, Bodu M, Bülbül B, Kırbaş M, Öztürk AE, Frootan F, İli P, Özkan H, Başpınar N, Dursun Ş. Combination of trehalose and low boron in presence of decreased glycerol improves post-thawed ram sperm parameters: A model study in boron research. Andrology 2021; 10:585-594. [PMID: 34779585 DOI: 10.1111/andr.13130] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/20/2021] [Accepted: 11/10/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Sperm cryopreservation has been widely used in the field of reproductive biotechnology. It applies to certain males of economic and scientific values, including livestock breeds or endangered animal species. The development of a semen extender with a low cryoprotectant concentration and an appropriate amount of trehalose and boron can prevent the deterioration of sperm parameters. OBJECTIVE The main goal of this study is to establish a suitable ram extender model, by examining different combinations of high (5%) and low (3%) glycerol concentrations (to reduce its toxic effects on sperm freezing), a fixed amount of trehalose and an increased dose of boron to prevent the deterioration of sperm parameters, and investigate the levels of gene expressions. MATERIALS AND METHODS The Merino ram ejaculates were collected. The collected ejaculates providing the defined criteria were pooled. The pooled ejaculates were divided into eight aliquots and diluted with the Tris extender including different combinations of glycerol (5% and 3%) and boron (0.25, 0.5, and 1 mm) concentrations and a fixed amount of trehalose, then frozen. After freeze-thawing process, sperm motility, mitochondrial membrane activity, plasma membrane integrity, acrosomal membrane integrity, DNA damage (single cell gel electrophoresis (COMET) and TUNEL assays) as well as NAD(P)H quinone oxyreductase (NQO1), glutamate-cycteine ligase (GCLC), and glutathione S-transferase (GSTP1) for molecular mechanisms of sperm cell response to oxidative stress were assessed for different extender groups following freeze-thawing process: 5% glycerol + 0 mm boron (G5B0.00), 5% glycerol + 0.25 mm boron (G5B0.25), 5% glycerol + 0.5 mm boron (G5B0.50), 5% glycerol + 1 mm boron (G5B1.00), 3% glycerol + 0 mm boron (G3B.00), 3% glycerol + 0.25 mm boron (G3B0.25), 3% glycerol + 0.5 mm boron (G3B0.50), and 3% glycerol + 1 mm boron (G3B1.00). RESULTS G3B0.25 presented higher percentages of subjective motility, mitochondrial activity, and viability of spermatozoa comparing with G5B0.00 and groups with boron. Supplementation of 0.25 mm boron with and without trehalose (G3B0.25 and G5B0.25) showed higher acrosome integrity, compared with G5B0.00, G5B1.00, G3B0.50, and G3B1.00. For TUNEL analysis, G3B1.00 showed the highest DNA integrity among the experimental groups which was statistically significant only with G5B0.50 (p < 0.05). The mRNA levels of NQO1 were significantly decreased in G5B1.00, G3B0.50, and G3B1.00, when compared to G5B0.00. In comparison with G5B0.00, supplementation of 1 mm boron with and without trehalose had significantly lower expression of GCLC. The level of GSTP1 gene was significantly lower (approximately threefold) in G3B1.00, compared to G5B0.00 (p < 0.05). DISCUSSION AND CONCLUSION It can be assumed that the increase of the boron concentration in the extender may have important adverse effects on sperm parameters and antioxidant gene expression after thawing. The results obtained from this study will help to understand the toxicity limits of boron and eliminate the toxicity of glycerol in studies of gametes and tissue freezing. Therefore, it can be concluded that the use of sufficient boron can decrease cryodamages of cryopreservation of mammalian spermatozoa as well tissue engineering.
Collapse
Affiliation(s)
- Mustafa Numan Bucak
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Sciences, Selçuk University, Konya, Turkey
| | - Nazan Keskin
- Department of Histology and Embryology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Mustafa Bodu
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Sciences, Selçuk University, Konya, Turkey
| | - Bülent Bülbül
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Sciences, Dokuz Eylül University, İzmir, Turkey
| | - Mesut Kırbaş
- Bahri Dagdas International Agricultural Research Institute, Konya, Turkey
| | - Ali Erdem Öztürk
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Sciences, Erciyes University, Kayseri, Turkey
| | - Fateme Frootan
- National Institute of Genetic Engineering & Biotechnology (NIGEB), Tehran, Iran
| | - Pınar İli
- Denizli Vocational School of Health Services, Pamukkale University, Denizli, Turkey
| | - Hüseyin Özkan
- Department of Genetics, Faculty of Veterinary Sciences, Mustafa Kemal University, Hatay, Turkey
| | - Nuri Başpınar
- Department of Biochemistry, Faculty of Veterinary Sciences, Selcuk University, Konya, Turkey
| | - Şükrü Dursun
- Department of Gynecology and Obstetrics, Faculty of Veterinary Sciences, Aksaray University, Aksaray, Turkey
| |
Collapse
|
10
|
Effect of cryoprotectant concentration on bovine oocyte permeability and comparison of two membrane permeability modelling approaches. Sci Rep 2021; 11:15387. [PMID: 34321576 PMCID: PMC8319298 DOI: 10.1038/s41598-021-94884-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 07/12/2021] [Indexed: 11/24/2022] Open
Abstract
The plasma membrane permeability to water and cryoprotectant (CPA) significantly impacts vitrification efficiency of bovine oocytes. Our study was designed to determine the concentration-dependent permeability characteristics for immature (GV) and mature (MII) bovine oocytes in the presence of ethylene glycol (EG) and dimethyl sulphoxide (Me2SO), and to compare two different modeling approaches: the two parameter (2P) model and a nondilute transport model. Membrane permeability parameters were determined by consecutively exposing oocytes to increasing concentrations of Me2SO or EG. Higher water permeability was observed for MII oocytes than GV oocytes in the presence of both Me2SO and EG, and in all cases the water permeability was observed to decrease as CPA concentration increased. At high CPA concentrations, the CPA permeability was similar for Me2SO and EG, for both MII and GV oocytes, but at low concentrations the EG permeability of GV oocytes was substantially higher. Predictions of cell volume changes during CPA addition and removal indicate that accounting for the concentration dependence of permeability only has a modest effect, but there were substantial differences between the 2P model and the nondilute model during CPA removal, which may have implications for design of improved methods for bovine oocyte vitrification.
Collapse
|
11
|
Effect of Tris-extender supplemented with a combination of turmeric and ethylene glycol on buffalo bull semen freezability and in vivo fertility. Trop Anim Health Prod 2021; 53:238. [PMID: 33792781 DOI: 10.1007/s11250-021-02668-5] [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: 07/14/2020] [Accepted: 03/15/2021] [Indexed: 10/21/2022]
Abstract
The objective of this study was to evaluate the effect of Tris-extender supplemented with a combination of turmeric and ethylene glycol on buffalo bull semen preservability and in vivo fertility. Five tubes (each contain 5 ml Tris-citric acid-fructose yolk, TCFY). The first tube contains turmeric extract and ethylene glycol and kept as a control. The other four tubes contain 1.5% ethylene glycol plus turmeric extract as follows: 100 μl/5 ml, 200 μl/5 ml, 300 μl/5 ml, and 400 μl/5 ml v/v). Pooled bull semen was added to the Tris extender and to Tris turmeric ethylene glycol. Extended semen was subjected to semen freezing protocol. Semen assessment was carried out. In Tris turmeric ethylene glycol post-cooling, sperm motility and alive sperms were significantly higher in the first concentration of Tris turmeric ethylene glycol (TTE1), sperm abnormalities were significantly lower in TTE1 and TTE2, and sperm membrane integrity (HOST) was significantly higher in TTE1 and acrosome percent was significantly higher in TTE1, TTE2, and TTE4 if compared to the control. Post-thawing, sperm motility was significantly higher in TTE1 as compared to the control and other concentrations of TE. All concentrations of TE were significantly higher in sperm membrane integrity (HOST) as relative to the control. Alive sperms were kept in TTE1 as the control. Acrosome percent was kept in most concentrations as the control. It is concluded that, in cooled and post-thawed semen, the first concentration (TTE1) gave the best sperm quality and conception rate.
Collapse
|
12
|
Maria da Silva A, Pereira AG, Brasil AV, Macedo LB, Souza-Junior J, Bezerra de Moura CE, Pereira AF, Franco de Oliveira M, Comizzoli P, Silva AR. Influence of freezing techniques and glycerol-based cryoprotectant combinations on the survival of testicular tissues from adult collared peccaries. Theriogenology 2021; 167:111-119. [PMID: 33813051 DOI: 10.1016/j.theriogenology.2021.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/16/2021] [Accepted: 03/16/2021] [Indexed: 01/23/2023]
Abstract
The objective of the study was to evaluate the effects of different cryopreservation techniques including glycerol-based cryoprotectant combinations on the structure and viability of testicular tissues from adult collared peccaries. Tissue biopsies (3.0 mm³) from 5 different individuals were allocated to 10 different groups: fresh control; slow freezing (SF), conventional vitrification (CV), or solid-surface vitrification (SSV); each of them using three different combinations of cryoprotectants [dimethyl sulfoxide (DMSO) + ethylene glycol (EG); DMSO + Glycerol; and EG + Glycerol]. After thawing/warming, samples were evaluated for histomorphology, viability, proliferative capacity potential, and DNA integrity. Most effective preservation of testicular histomorphology was achieved using SF and CV with DMSO + EG. However, the use of glycerol-based cryoprotectant combinations increased the occurrence of tubular cell swelling, tubular cell loss and shrinkage from the basal membrane. Cell viability was comparable among cryopreservation methods and cryoprotectant combinations. Regarding cell proliferative capacity, the use of SF with EG + Glycerol and SSV with DMSO + Glycerol impaired the conservation of spermatogonia proliferative potential compared to other treatments. Moreover, CV with DMSO + EG was better than SF with EG + Glycerol for Sertoli cell proliferation potential. Regarding DNA integrity, less damage occurred when using SF with DMSO + EG while more fragmentations were observed when using CV with EG + Glycerol or DMSO + Glycerol as well as SSV with EG + Glycerol or DMSO + Glycerol. In sum, SF and CV appeared to be the most suitable methods for the cryopreservation of adult peccary testicular tissues. Additionally, the use of glycerol-based cryoprotectant combinations did not improve testicular tissues preservation with DMSO + EG being the most efficient option.
Collapse
Affiliation(s)
- Andréia Maria da Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | - Ana Gloria Pereira
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | - Andreza Vieira Brasil
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | | | - João Souza-Junior
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil
| | | | | | | | - Pierre Comizzoli
- Smithsonian Conservation Biology Institute, National Zoological Park, Veterinary Hospital, Washington, DC, USA
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil.
| |
Collapse
|
13
|
Aseptic capillary vitrification of human spermatozoa: Cryoprotectant-free vs. cryoprotectant-included technologies. Cryobiology 2021; 99:95-102. [PMID: 33422478 DOI: 10.1016/j.cryobiol.2021.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/02/2021] [Accepted: 01/05/2021] [Indexed: 11/23/2022]
Abstract
The protocol of aseptic cryoprotectant-free vitrification on human spermatozoa is well documented. However, data about the effect of permeable cryoprotectants at this procedure is limited. Presented study aimed to test the aseptic capillary vitrification technologies using permeable cryoprotectant-included or cryoprotectant-free media. Thirty-two normal samples were included and analyzed after vitrification in three different media and thawing. Three treatment groups were formed: Group 1, basic medium; Group 2, basic medium with 0.25 M sucrose; Group 3, basic medium with glycerol. Before plunging into liquid nitrogen, capillaries were filled by 10 μl of spermatozoa suspension and isolated from liquid nitrogen by location in hermetically closed 0.25 ml straws. Progressive motility, plasma membrane integrity, total motility/viability after 24, 48 and 72 h in vitro culture, apoptosis and mitochondrial membrane potential (ΔΨm) were determined after thawing at 42 °C. Progressive motility of spermatozoa in groups 1, 2, 3 was 24.9 ± 1.7%, 34.5 ± 2.8% and 34.0 ± 1.4%, respectively (P1-2,3<0.05). The plasma membrane integrity of spermatozoa in groups 2 and 3 (48.4 ± 2.9% and 45.5 ± 3.9%, respectively) was higher than in Group 1 (33.3 ± 2.1%, P < 0.05). After 24 h, 48 h and 72 h in vitro culture, the total motility and viability of spermatozoa in Group 1 was significantly lower than Group 2 and Group 3. The apoptosis rate in Group 3 (44.5 ± 3.0%) and Group 2 (47.7 ± 4.1%) were lower than in Group 1 (52.5 ± 4.4%; P < 0.05). ΔΨm rates in Group 3 and Group 2 were higher than in Group 1 (P < 0.05) with no statistical differences between this parameter in Group 2 and Group 3 (P > 0.1). In conclusion, supplementation of medium for aseptic capillary technology for cryoprotectant-free vitrification of human spermatozoa by permeable cryoprotectant does not improve the quality of spermatozoa after warming.
Collapse
|
14
|
Insights into the model of non-perfect osmometer cells for cryopreservation: A parametric sweep analysis. Cryobiology 2020; 100:193-211. [PMID: 33248930 DOI: 10.1016/j.cryobiol.2020.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 11/23/2022]
Abstract
Recently, a mathematical model able to describe the non-perfect osmotic behavior of cells during cryopreservation was proposed. The model improves the two-parameter formalism typically adopted in cryopreservation literature by allowing the transmembrane permeation of ions/salt, through the temporary opening of mechanosensitive channels whenever membrane stretching occurs: cells can reach an equilibrium volume different from the initial one, when isotonic conditions are re-established after contacting with impermeant or permeant solutes, such as sucrose or a cryoprotectant agent like dimethyl sulfoxide, respectively. Although the model was conceived as a conservative development of the two-parameter formalism to avoid over-parameterization, a complex picture of the system emerges. To describe this, first an appropriate non-dimensional version of the model equations is derived. Then, a parametric sweep analysis is performed and discussed to highlight the features of the novel model in comparison with the two-parameter formalism: the conditions by which the first reduces to the second are identified. Only equilibrium equations with impermeant sucrose may be analytically derived from the model: their validity is here extended much more than originally assumed. When permeant dimethyl sulfoxide comes into play, the temporary opening of mechanosensitive channels is difficult to predict and prevents the derivation of the equilibrium equations: in this case, a numerical integration of system dynamics up to steady state is required to determine the cell volume at equilibrium. In conclusion, cell volume at equilibrium depends on the position of the temporal window of mechanosensitive channels opening, which, in general, is a complex function of model parameters and operating conditions.
Collapse
|
15
|
Water-transport and intracellular ice formation of human adipose-derived stem cells during freezing. J Therm Biol 2020; 93:102689. [PMID: 33077114 DOI: 10.1016/j.jtherbio.2020.102689] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 07/22/2020] [Accepted: 08/05/2020] [Indexed: 11/22/2022]
Abstract
The key to optimizing the cryopreservation strategy of human adipose-derived stem cells (hADSCs) is to identify the biophysical characteristics during freezing. Systematic freezing experiments were conducted under a cryo-microscope system to investigate the cryoinjury mechanism for hADSCs at different cooling rates. By simultaneously fitting morphological change data to the water-transport equation at 5, 10 and 20 °C/min, the plasma membrane hydraulic conductivity, Lpg, and activation energy, ELp, were determined. Moreover, the optimal cooling rate was also predicted by using mathematical model methods. Additionally, the surface-catalyzed nucleation (SCN) parameters were calculated by fitting in numerical models, Ω0SCN and k0SCN were determined at cooling rates of 30, 45 and 60 °C/min. These results may provide potential application value for cryopreservation of hADSCs.
Collapse
|
16
|
Raju R, Bryant SJ, Wilkinson BL, Bryant G. The need for novel cryoprotectants and cryopreservation protocols: Insights into the importance of biophysical investigation and cell permeability. Biochim Biophys Acta Gen Subj 2020; 1865:129749. [PMID: 32980500 DOI: 10.1016/j.bbagen.2020.129749] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/16/2020] [Accepted: 09/22/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Cryopreservation is a key method of preservation of biological material for both medical treatments and conservation of endangered species. In order to avoid cellular damage, cryopreservation relies on the addition of a suitable cryoprotective agent (CPA). However, the toxicity of CPAs is a serious concern and often requires rapid removal on thawing which is time consuming and expensive. SCOPE OF REVIEW The principles of Cryopreservation are reviewed and recent advances in cryopreservation methods and new CPAs are described. The importance of understanding key biophysical properties to assess the cryoprotective potential of new non-toxic compounds is discussed. MAJOR CONCLUSIONS Knowing the biophysical properties of a particular cell type is crucial for developing new cryopreservation protocols. Similarly, understanding how potential CPAs interact with cells is key for optimising protocols. For example, cells with a large osmotically inactive volume may require slower addition of CPAs. Similarly, a cell with low permeability may require a longer incubation time with the CPA to allow adequate penetration. Measuring these properties allows efficient optimisation of cryopreservation protocols. GENERAL SIGNIFICANCE Understanding the interplay between cells and biophysical properties is important not just for developing new, and better optimised, cryopreservation protocols, but also for broader research into topics such as dehydration and desiccation tolerance, chilling and heat stress, as well as membrane structure and function.
Collapse
Affiliation(s)
- Rekha Raju
- School of Science, RMIT University, Melbourne, Victoria 3001, Australia
| | - Saffron J Bryant
- School of Science, RMIT University, Melbourne, Victoria 3001, Australia.
| | - Brendan L Wilkinson
- School of Science and Technology, University of New England, Armidale, NSW 2351, Australia
| | - Gary Bryant
- School of Science, RMIT University, Melbourne, Victoria 3001, Australia.
| |
Collapse
|
17
|
Öztürk AE, Bodu M, Bucak MN, Ağır V, Özcan A, Keskin N, İli P, Topraggaleh TR, Sidal H, Başpınar N, Dursun Ş. The synergistic effect of trehalose and low concentrations of cryoprotectants can improve post-thaw ram sperm parameters. Cryobiology 2020; 95:157-163. [DOI: 10.1016/j.cryobiol.2020.03.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 10/24/2022]
|
18
|
Chen Z, Memon K, Cao Y, Zhao G. A microfluidic approach for synchronous and nondestructive study of the permeability of multiple oocytes. MICROSYSTEMS & NANOENGINEERING 2020; 6:55. [PMID: 34567666 PMCID: PMC8433209 DOI: 10.1038/s41378-020-0160-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/23/2020] [Accepted: 03/30/2020] [Indexed: 05/11/2023]
Abstract
Investigation of oocyte membrane permeability plays a crucial role in fertility preservation, reproductive medicine, and reproductive pharmacology. However, the commonly used methods have disadvantages such as high time consumption, low efficiency, and cumbersome data processing. In addition, the developmental potential of oocytes after measurement has not been fully validated in previous studies. Moreover, oocytes can only maintain their best status in vitro within a very limited time. To address these limitations, we developed a novel multichannel microfluidic chip with newly designed micropillars that provide feasible and repeatable oocyte capture. The osmotic responses of three oocytes at different or the same cryoprotectant (CPA) concentrations were measured simultaneously, which greatly improved the measurement efficiency. Importantly, the CPA concentration dependence of mouse oocyte membrane permeability was found. Moreover, a neural network algorithm was employed to improve the efficiency and accuracy of data processing. Furthermore, analysis of fertilization and embryo transfer after perfusion indicated that the microfluidic approach does not damage the developmental potential of oocytes. In brief, we report a new method based on a multichannel microfluidic chip that enables synchronous and nondestructive measurement of the permeability of multiple oocytes.
Collapse
Affiliation(s)
- Zhongrong Chen
- Department of Electronic Science and Technology, University of Science and Technology of China, Hefei, 230027 China
| | - Kashan Memon
- Department of Electronic Science and Technology, University of Science and Technology of China, Hefei, 230027 China
| | - Yunxia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Anhui Medical University, Hefei, 230022 China
| | - Gang Zhao
- Department of Electronic Science and Technology, University of Science and Technology of China, Hefei, 230027 China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs, Anhui Medical University, Hefei, 230022 China
| |
Collapse
|
19
|
Cheema RS, Kaur S, Mavi GK, Singh AK, Honparkhe M, Gandotra VK. In vitro evaluation of Labrador dog spermatozoa cryopreserved in Tris-citric acid-fructose buffer supplemented with different combinations of extracellular and intracellular cryoprotectants. Anim Biotechnol 2019; 32:352-365. [PMID: 31814520 DOI: 10.1080/10495398.2019.1698434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Aim of this study was to compare different combinations of penetrating intracellular CPAs, i.e., glycerol (G), ethylene glycol (EG), propylene glycol (PG), dimethyl formamide (DM), and methyl acetamide (MA) and extracellular [egg yolk (EY), egg yolk plasma (EYP), low-density lipoproteins (LDL), and coconut water (CW)] in Tris-citric acid-fructose buffer (T) for Labrador dog semen cryopreservation. The study was conducted in two parts, first trial was conducted to assess optimum glycerol concentration (5-7%) in TEY and equilibration time (ET, 2-4 hrs) for Labrador dog semen cryopreservation. Secondly, compatibility of 15% TEY, 15% TEYP, 13% TLDL, and 25% TCW with G, DMF, MA, D + M, EG, and PG was evaluated for in vitro sperm function tests. Decline in sperm attributes, i.e., motility, viability, plasma membrane integrity (PMI), and acrosome integrity (AI)) was significantly (p < 0.05) less in 7% TEY-G and 4 h compared to other concentrations and ET at post-thaw. There was significantly (p < 0.05) less decline in sperm attributes in TEY-G, TEYP-G, TLDL-G, TLDL-D, TLDL-EG, and TCW-D extenders compared to other combinations at post-thaw. However, these parameters were significantly (p < 0.05) high in TEY-G and TEYP-G compared to TEYP-D, TLDL-G, TLDL-D, TLDL-EG, and TCW-D extenders at post-thaw. However, decline in motility, viability, PMI, and AI was identical in these seven extenders. This study concluded that glycerol at a concentration of 7% in TEY and 4 h ET were optimum for successful cryopreservation and besides TEY-G, other combinations of protectants may be an alternative for canine semen cryopreservation.
Collapse
Affiliation(s)
- Ranjna S Cheema
- Department of Veterinary Gynecology and Obstetrics, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Sukhjeet Kaur
- Department of Veterinary Gynecology and Obstetrics, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Gurjot K Mavi
- Department of Animal Nutrition, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Ashwani K Singh
- Department of Veterinary Gynecology and Obstetrics, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - M Honparkhe
- Department of Veterinary Gynecology and Obstetrics, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Vinod K Gandotra
- Department of Veterinary Gynecology and Obstetrics, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| |
Collapse
|
20
|
da Silva AM, Bezerra LGP, Praxedes ECG, Moreira SSJ, de Souza CMP, de Oliveira MF, Pereira AF, Comizzoli P, Silva AR. Combination of intracellular cryoprotectants preserves the structure and the cells proliferative capacity potential of adult collared peccary testicular tissue subjected to solid surface vitrification. Cryobiology 2019; 91:53-60. [DOI: 10.1016/j.cryobiol.2019.10.199] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/22/2019] [Accepted: 10/28/2019] [Indexed: 12/11/2022]
|
21
|
Domingo P, Olaciregui M, González N, De Blas I, Gil L. Effect of glycerol, n, n-dimethylformamide and n-methyl-2-pyrrolidone on rabbit sperm stored at 4 °C and 16 °C. Anim Reprod 2019; 16:887-894. [PMID: 32368268 PMCID: PMC7189548 DOI: 10.21451/1984-3143-ar2018-0100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Artificial insemination with cooled semen is the most common practice in rabbit farms and any improvement on it helps to increase the efficiency and productivity of rabbit meat farms. Therefore, the aim of this study was to assess whether different cryoprotectant agents (CPA) as glycerol, N, N-Dimethylformamide (DMF) and N-Methyl-2-Pyrrolidone (NMP) can improve cooled rabbit sperm quality stored at 4ºC and 16ºC. Sperm samples were diluted with INRA 96® (Extender A), INRA 96® with 6% glycerol (Extender B) or 6% DMF (Extender C) or 6% NMP (Extender D) respectively and stored at 4ºC and 16ºC. Samples were then analysed at 4, 24, 48 and 72 hours after refrigeration by integrated sperm analysis system (ISAS®), eosin-nigrosin stain (vitality), hypo-osmotic swelling test (HOS test) and acrosome integrity test. Extender C showed higher percentage of motility, vitality and HOS test than extender B and D (p<0.05). Whereas sperm quality decreased over time (p<0.05), data showed that the addition of DMF kept the motility and sperm plasma membrane integrity after 24 hours of storage better than other diluents. These results suggest that the addition of DMF to INRA 96® exerts a protective effect on the membrane of spermatozoa improving seminal quality.
Collapse
Affiliation(s)
- Paula Domingo
- Universidad de Zaragoza, Facultad de Veterinaria, Área de Obstetricia y Reproducción Animal, Departamento de Patología Animal, España
| | - Maite Olaciregui
- Universidad de Zaragoza, Facultad de Veterinaria, Área de Obstetricia y Reproducción Animal, Departamento de Patología Animal, España
| | - Noelia González
- Universidad de Zaragoza, Facultad de Veterinaria, Área de Obstetricia y Reproducción Animal, Departamento de Patología Animal, España
| | - Ignacio De Blas
- Universidad de Zaragoza, Facultad de Veterinaria, Área de Salud Animal, Departamento de Patología Animal, España
| | - Lydia Gil
- Universidad de Zaragoza, Facultad de Veterinaria, Área de Obstetricia y Reproducción Animal, Departamento de Patología Animal, España
| |
Collapse
|
22
|
Wolkers WF, Oldenhof H, Tang F, Han J, Bigalk J, Sieme H. Factors Affecting the Membrane Permeability Barrier Function of Cells during Preservation Technologies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7520-7528. [PMID: 30501184 DOI: 10.1021/acs.langmuir.8b02852] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cellular membranes are exposed to extreme conditions during the processing steps involved in cryopreservation (and freeze-drying) of cells. The first processing step involves adding protective agents. Exposing cells to protective agents causes fluxes of both water and solutes (i.e., permeating cryoprotective agents) across the cellular membrane, resulting in cell volume changes and possibly osmotic stress. In addition, protective molecules may interact with lipids, which may lead to membrane structural changes and permeabilization. After loading with protective agents, subsequent freezing exposes cells to severe osmotic and mechanical stresses, caused by extra and/or intracellular ice formation and a drastically increased solute concentration in the unfrozen fraction. Furthermore, cellular membranes undergo thermotropic and lyotropic phase transitions during cooling and freezing, which drastically alter the membrane permeability and its barrier function. In this article, it is shown that membrane permeability to water and solutes is dependent on the temperature, medium osmolality, types of solutes present, cell hydration level, and absence or presence of ice. Freezing most drastically alters the membrane permeability barrier function, which is reflected as a change in the activation energy for water transport. In addition, membranes become temporarily leaky during freezing-induced fluid-to-gel membrane phase transitions, resulting in the uptake of impermeable solutes.
Collapse
Affiliation(s)
- Willem F Wolkers
- Institute of Multiphase Processes , Leibniz Universität Hannover , Callinstrasse 36 , Hannover 30167 , Germany
| | - Harriëtte Oldenhof
- Unit for Reproductive Medicine, Clinic for Horses , University of Veterinary Medicine Hannover , Buenteweg 15 , Hannover 30559 , Germany
| | - Fengrui Tang
- Institute of Multiphase Processes , Leibniz Universität Hannover , Callinstrasse 36 , Hannover 30167 , Germany
| | - Jiale Han
- Institute of Multiphase Processes , Leibniz Universität Hannover , Callinstrasse 36 , Hannover 30167 , Germany
- Unit for Reproductive Medicine, Clinic for Horses , University of Veterinary Medicine Hannover , Buenteweg 15 , Hannover 30559 , Germany
| | - Judith Bigalk
- Unit for Reproductive Medicine, Clinic for Horses , University of Veterinary Medicine Hannover , Buenteweg 15 , Hannover 30559 , Germany
| | - Harald Sieme
- Unit for Reproductive Medicine, Clinic for Horses , University of Veterinary Medicine Hannover , Buenteweg 15 , Hannover 30559 , Germany
| |
Collapse
|
23
|
Influence of Different Combinations of Permeable and Nonpermeable Cryoprotectants on the Freezing Capacity of Equine Sperm. J Equine Vet Sci 2019; 75:69-73. [PMID: 31002096 DOI: 10.1016/j.jevs.2019.01.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/21/2019] [Accepted: 01/30/2019] [Indexed: 12/22/2022]
Abstract
This study was aimed to evaluate the effect of permeable cryoprotectants in combination with trehalose or sucrose on the freezing capacity of stallion sperm. For this purpose, the ejaculates (n = 24) were collected from four healthy mature Turkmen stallions. The ejaculates were pooled and diluted with one of the extenders containing a combination of 5% of permeating (dimethylacetamide [DMA]; dimethylformamide [DMF] or glycerol) and 50 mM of nonpermeating cryoprotectant agents (CPAs) (sucrose or trehalose) to a final concentration of 200 × 106 spermatozoa/mL. The extended samples were cryopreserved and thawed using a standard protocol. The samples were evaluated for motion kinetics, morphological abnormalities, plasma membrane functionality (PMF), viability, and lipid peroxidation. The results showed that the sperm cryopreserved in extender containing DMA produced higher (P ≤ .05) total motility, straightness, straight line velocity, curvilinear velocity, and lower (P ≤ .05) lipid peroxidation (malondialdehyde [MDA] concentration) compared with DMF and glycerol groups. Overall, both DMA and DMF have shown higher (P ≤ .05) sperm motion kinetics, viability, PMF, and lower (P ≤ .05) morphological abnormalities and MDA concentration compared with the glycerol. However, except morphological abnormalities, all of the other parameters did not differ between trehalose and sucrose. Likewise, there was no interaction between permeating and nonpermeating CPAs (P ≥ .05) except in terms of sperm abnormalities (P ≤ .05). In conclusion, the use of DMA or DMF as alternative CPAs of glycerol could be more effective for successful cryopreservation of stallion sperm. The nonsignificant interaction between permeating and nonpermeating CPAs for most of the post-thaw sperm parameters negates possible synergism among these compounds.
Collapse
|
24
|
Domingo P, Olaciregui M, González N, De Blas I, Gil L. Effects of seminal plasma and different cryoprotectants on rabbit sperm preservation at 16°C. Exp Anim 2018; 67:413-420. [PMID: 29899185 PMCID: PMC6219875 DOI: 10.1538/expanim.17-0152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The purpose of this research was to assess whether the presence of seminal plasma (SP)
can improve sperm quality of rabbit spermatozoa stored at 16°C for 72 h and moreover
evaluate the cryoprotectant effects of glycerol, N-N-Dimethylformamide (DMF), and
N-methyl-2-pyrrolidone (NMP). Semen samples were pooled and divided in eight fractions.
Four of them were diluted with INRA (extender A), INRA with 6% glycerol (extender B), INRA
with 6% DMF (extender C), or INRA with 6% NMP (extender D), respectively. The other four
fractions were centrifuged, and the supernatant was removed in order to eliminate SP. Each
sample was then resuspended with extender A, B, C, or D, respectively. All samples were
stored at 16°C and analysed at 4, 24, 48, and 72 h by ISAS®, vitality test, HOS
test, and acrosome integrity test. After analyse of the results, SP samples showed a
significantly higher percentage (P=0.020) in the HOS
test (71.9 ± 1.6%) than non-SP samples (66.5 ± 1.6%). Non-SP samples had better results
for kinematic parameters. Extenders A and C showed great results for the percentage of
motile spermatozoa (63.1 ± 4.3% and 63.4 ± 3.7%, respectively), vitality (88.9 ± 2.6% and
87.7 ± 2.7%, respectively), and HOS test (68.9 ± 1.4% and 75.2 ± 1.4%, respectively).
Extenders B and D showed worse data for sperm quality. These results suggest that SP has a
protective effect on rabbit sperm membranes and maintains better sperm motility. The
addition of glycerol and NMP to INRA does not improve rabbit sperm quality; nevertheless,
the DMF cryoprotectant exerts a protective effect on the membrane of spermatozoa,
improving seminal quality during rabbit sperm preservation at 16°C.
Collapse
Affiliation(s)
- Paula Domingo
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Maite Olaciregui
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Noelia González
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Ignacio De Blas
- Department of Animal Pathology, Animal Health Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Lydia Gil
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| |
Collapse
|
25
|
Lahmann JM, Benson JD, Higgins AZ. Concentration dependence of the cell membrane permeability to cryoprotectant and water and implications for design of methods for post-thaw washing of human erythrocytes. Cryobiology 2017; 80:1-11. [PMID: 29223592 DOI: 10.1016/j.cryobiol.2017.12.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/01/2017] [Accepted: 12/05/2017] [Indexed: 11/27/2022]
Abstract
For more than fifty years the human red blood cell (RBC) has been a widely studied model for transmembrane mass transport. Existing literature spans myriad experimental designs with varying results and physiologic interpretations. In this review, we examine the kinetics and mechanisms of membrane transport in the context of RBC cryopreservation. We include a discussion of the pathways for water and glycerol permeation through the cell membrane and the implications for mathematical modeling of the membrane transport process. In particular, we examine the concentration dependence of water and glycerol transport and provide equations for estimating permeability parameters as a function of concentration based on a synthesis of literature data. This concentration-dependent transport model may allow for design of improved methods for post-thaw removal of glycerol from cryopreserved blood. More broadly, the consideration of the concentration dependence of membrane permeability parameters may be important for other cell types as well, especially for design of methods for equilibration with the highly concentrated solutions used for vitrification.
Collapse
Affiliation(s)
- John M Lahmann
- School of Chemical, Biological and Environmental Engineering, Oregon State University, United States
| | - James D Benson
- Department of Biology, University of Saskatchewan, Canada
| | - Adam Z Higgins
- School of Chemical, Biological and Environmental Engineering, Oregon State University, United States.
| |
Collapse
|
26
|
Weng L, Ellett F, Edd J, Wong KHK, Uygun K, Irimia D, Stott SL, Toner M. A highly-occupied, single-cell trapping microarray for determination of cell membrane permeability. LAB ON A CHIP 2017; 17:4077-4088. [PMID: 29068447 PMCID: PMC5702951 DOI: 10.1039/c7lc00883j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Semi- and selective permeability is a fundamentally important characteristic of the cell membrane. Membrane permeability can be determined by monitoring the volumetric change of cells following exposure to a non-isotonic environment. For this purpose, several microfluidic perfusion chambers have been developed recently. However, these devices only allow the observation of one single cell or a group of cells that may interact with one another in an uncontrolled way. Some of these devices have integrated on-chip temperature control to investigate the temperature-dependence of membrane permeability, but they inevitably require sophisticated fabrication and assembly, and delicate temperature and pressure calibration. Therefore, it is highly desirable to design a simple single-cell trapping device that allows parallel monitoring of multiple separate, individual cells subjected to non-isotonic exposure at various temperatures. In this study, we developed a pumpless, single-layer microarray with high trap occupancy of single cells. The benchmark performance of the device was conducted by targeting spherical particles of 18.8 μm in diameter as a model, yielding trap occupancy of up to 86.8% with a row-to-row shift of 10-30 μm. It was also revealed that in each array the particles larger than a corresponding critical size would be excluded by the traps in a deterministic lateral displacement mode. Demonstrating the utility of this approach, we used the single-cell trapping device to determine the membrane permeability of rat hepatocytes and patient-derived circulating tumor cells (Brx-142) at 4, 22 and 37 °C. The membrane of rat hepatocytes was found to be highly permeable to water and small molecules such as DMSO and glycerol, via both lipid- and aquaporin-mediated pathways. Brx-142 cells, however, displayed lower membrane permeability than rat hepatocytes, which was associated with strong coupling of water and DMSO transport but less interaction between water and glycerol. The membrane permeability data reported here provide new insights into the biophysics of membrane transport such as aquaporin expression and coupling transport of water and solutes, as well as providing essential data for the ultimate goal of biobanking rare cells and precious tissues.
Collapse
Affiliation(s)
- Lindong Weng
- The Center for Engineering in Medicine, BioMEMS Resource Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Felix Ellett
- The Center for Engineering in Medicine, BioMEMS Resource Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Shriners Hospital for Children, Boston, MA 02114, USA
| | - Jon Edd
- The Center for Engineering in Medicine, BioMEMS Resource Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Keith HK Wong
- The Center for Engineering in Medicine, BioMEMS Resource Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Shriners Hospital for Children, Boston, MA 02114, USA
| | - Korkut Uygun
- The Center for Engineering in Medicine, BioMEMS Resource Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Shriners Hospital for Children, Boston, MA 02114, USA
| | - Daniel Irimia
- The Center for Engineering in Medicine, BioMEMS Resource Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Shriners Hospital for Children, Boston, MA 02114, USA
| | - Shannon L. Stott
- The Center for Engineering in Medicine, BioMEMS Resource Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA 02129, USA
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Mehmet Toner
- The Center for Engineering in Medicine, BioMEMS Resource Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Shriners Hospital for Children, Boston, MA 02114, USA
| |
Collapse
|
27
|
Oldenhof H, Bigalk J, Hettel C, de Oliveira Barros L, Sydykov B, Bajcsy ÁC, Sieme H, Wolkers WF. Stallion Sperm Cryopreservation Using Various Permeating Agents: Interplay Between Concentration and Cooling Rate. Biopreserv Biobank 2017; 15:422-431. [PMID: 28805449 DOI: 10.1089/bio.2017.0061] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
In this study, modeling and experimental approaches were used to investigate the interplay between cooling rate and protectant concentration for cryopreservation of stallion sperm. Glycerol (GLY), ethylene glycol (EG), dimethylformamide (DMF), propylene glycol (PG), and dimethyl sulfoxide (DMSO) were tested as cryoprotective agents (CPAs), using concentrations up to 1500 mM and cooling rates ranging from 5°C to 55°C min-1. Modeling of the extent of sperm dehydration during freezing was done using previously determined values of the sperm membrane permeability to water to predict optimal cooling rates for cryopreservation. Sperm cryosurvival was experimentally determined through flow cytometric assessments on membrane intactness and using computer-assisted analysis of motility. Sperm could withstand exposure to 1500 mM concentrations prefreeze for all CPAs tested. The overall highest cryosurvival rates were obtained with DMF, followed by GLY and EG, whereas the use of PG and DMSO resulted in poor cryosurvival rates. Cryosurvival with DMF increased with increasing concentration, reaching a plateau at 500 mM, whereas for GLY and EG, an optimum concentration between 250 and 500 mM resulted in maximal survival. An optimal cooling rate was only observed at low CPA concentrations, whereas at higher concentrations, cryosurvival rates were not affected by the cooling rate. In the case of DMF, survival remained relatively high in the investigated range of concentrations and cooling rates, whereas with GLY and EG, a much narrower combination of CPA concentration and cooling rate resulted in optimal cryosurvival. Sperm cryopreserved with DMF showed altered motility characteristics indicating hyperactivation, which was not observed with GLY and EG. Optimal cooling rates that were predicted from calculated dehydration curves did not match experimentally determined optimal cooling rates.
Collapse
Affiliation(s)
- Harriëtte Oldenhof
- 1 Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Judith Bigalk
- 1 Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Christiane Hettel
- 2 Clinic for Cattle, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Lawrence de Oliveira Barros
- 1 Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Bulat Sydykov
- 3 Institute of Multiphase Processes , Leibniz Universität Hannover, Hannover, Germany
| | - Á Csaba Bajcsy
- 2 Clinic for Cattle, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Harald Sieme
- 1 Unit for Reproductive Medicine, Clinic for Horses, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Willem F Wolkers
- 3 Institute of Multiphase Processes , Leibniz Universität Hannover, Hannover, Germany
| |
Collapse
|
28
|
Xin M, Siddique MAM, Dzyuba B, Cuevas-Uribe R, Shaliutina-Kolešová A, Linhart O. Progress and challenges of fish sperm vitrification: A mini review. Theriogenology 2017; 98:16-22. [PMID: 28601150 DOI: 10.1016/j.theriogenology.2017.04.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 04/05/2017] [Accepted: 04/27/2017] [Indexed: 10/19/2022]
Abstract
To survive low temperature is required for a long-term storage (cryopreservation), cells should be vitrified to a state in which intracellular water is solidified without ice crystal formation. Two different approaches are described for fish sperm cryopreservation: 1) sperm conventional cryopreservation, in which extracellular water is partially crystallized and 2) sperm vitrification, in which both intra- and extra-cellular liquids are vitrified. Sperm vitrification has been applied to some fish species with limited success. Traditional vitrification requires rapid cooling/warming rates, small sample carriers, and using high permeable cryoprotectant concentrations. The latter cause cytotoxic effects which must be well managed and will require continuous effort to match an appropriate cryoprotectant with suitable apparatus and warming methods. Novel cryoprotectant-free sperm vitrification approach has been applied to several fishes. This review summarizes development of basic procedures and discusses advantages and disadvantages of vitrification when applied it to fish sperm.
Collapse
Affiliation(s)
- Miaomiao Xin
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research, Institute of Fish Culture and Hydrobiology, University of South Bohemia in Ceske Budejovice, Vodňany, Czech Republic.
| | - Mohammad Abdul Momin Siddique
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research, Institute of Fish Culture and Hydrobiology, University of South Bohemia in Ceske Budejovice, Vodňany, Czech Republic; Department of Oceanography, Noakhali Science and Technology University, Sonapur, Noakhali, Bangladesh.
| | - Borys Dzyuba
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research, Institute of Fish Culture and Hydrobiology, University of South Bohemia in Ceske Budejovice, Vodňany, Czech Republic
| | - Rafael Cuevas-Uribe
- Department of Fisheries Biology, Humboldt State University, One Harpst St., Arcata, CA, 95521, USA
| | - Anna Shaliutina-Kolešová
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research, Institute of Fish Culture and Hydrobiology, University of South Bohemia in Ceske Budejovice, Vodňany, Czech Republic
| | - Otomar Linhart
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research, Institute of Fish Culture and Hydrobiology, University of South Bohemia in Ceske Budejovice, Vodňany, Czech Republic.
| |
Collapse
|
29
|
De Oliveira RA, Budik S, Aurich C. Influence of partial or total replacement of glycerol by alternative cryoprotectants in Ghent freezing extender on post-thaw sperm quality in stallions. Reprod Domest Anim 2017; 52:715-721. [DOI: 10.1111/rda.12970] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/19/2017] [Indexed: 12/14/2022]
Affiliation(s)
- RA De Oliveira
- Artificial Insemination and Embryo Transfer; Vetmeduni Vienna; Vienna Austria
| | - S Budik
- Artificial Insemination and Embryo Transfer; Vetmeduni Vienna; Vienna Austria
| | - C Aurich
- Artificial Insemination and Embryo Transfer; Vetmeduni Vienna; Vienna Austria
| |
Collapse
|
30
|
Zhang XG, Li H, Hu JH. Effects of various cryoprotectants on the quality of frozen-thawed immature bovine (Qinchuan cattle) calf testicular tissue. Andrologia 2017; 49. [PMID: 28295478 DOI: 10.1111/and.12743] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2016] [Indexed: 01/09/2023] Open
Abstract
To investigate the effects of different concentrations of various cryoprotectants (CPs) on the cell viability as well as expression of spermatogenesis-related genes, such as CREM, Stra8 and HSP70-2 in frozen-thawed bovine calf testicular tissue, immature bovine (Qinchuan cattle) calf testicular tissue was collected and cryopreserved in the cryomedia containing different concentrations (5%, 10%, 15% and 20%) of the following three CPs: glycerol, ethylene glycol (EG) and dimethyl sulphoxide (DMSO) respectively. After 1 month cryopreservation in liquid nitrogen, cell viability was evaluated using Trypan blue exclusion under a bright-field microscope. The mRNA expression of the three genes was also evaluated using qRT-PCR. The results indicated that different concentrations of glycerol, EG and DMSO in cryomedia during cryopreservation could protect bovine calf testicular tissue in various ways to avoid freezing or cryopreservation-induced expression changes in spermatogenesis-related genes. The highest cell viability and the three spermatogenesis-related genes (CREM, Stra8 and HSP70-2) expression level came from the cryomedia containing glycerol, EG and DMSO at 10% concentration respectively (p < .05). Meanwhile, compared with the other CPs, the frozen-thawed bovine calf testicular tissue treated with 10% DMSO exhibited the highest cell viability and mRNA expression level of the spermatogenesis-related genes (CREM, Stra8 and HSP70-2).
Collapse
Affiliation(s)
- X-G Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - H Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - J-H Hu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| |
Collapse
|
31
|
Fang C, Ji F, Shu Z, Gao D. Determination of the temperature-dependent cell membrane permeabilities using microfluidics with integrated flow and temperature control. LAB ON A CHIP 2017; 17:951-960. [PMID: 28197586 DOI: 10.1039/c6lc01523a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We developed an integrated microfluidic platform for instantaneous flow and localized temperature control. The platform consisted of a flow-focusing region for sample delivery and a cross-junction region embedded with a microheater for cell trapping and localized temperature control by using an active feedback control system. We further used it to measure the membrane transport properties of Jurkat cells, including the osmotically inactive cell volume (Vb) and cell membrane permeabilities to water (Lp) and to cryoprotective agent (CPA) solutions (dimethyl sulfoxide (DMSO) in this study) (PS) at various temperatures (room temperature, 30 °C, and 37 °C). Such characteristics of cells are of great importance in many applications, especially in optimal cryopreservation. With the results, the corresponding activation energy for water and CPA transport was calculated. The comparison of the results from the current study with reference data indicates that the developed platform is a reliable tool for temperature-dependent cell behavior study, which provides valuable tools for general cell manipulation applications with precise temperature control.
Collapse
Affiliation(s)
- Cifeng Fang
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Fujun Ji
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA. and School of Information, Capital University of Economics and Business, Beijing 100070, China
| | - Zhiquan Shu
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA. and School of Mechanical and Materials Engineering, Washington State University, Everett, WA 98201, USA.
| | - Dayong Gao
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA.
| |
Collapse
|
32
|
El-Badry DA, Mohamed RH, EL-Metwally HA, Abo Al-Naga TR. The effect of some cryoprotectants on dromedary camel frozen-thawed semen. Reprod Domest Anim 2017; 52:522-525. [DOI: 10.1111/rda.12934] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 12/21/2016] [Indexed: 11/30/2022]
Affiliation(s)
- DA El-Badry
- Artifcial Insemination and Embryo Transfer Department; Animal Reproduction Research Institute; Agriculture Research Center (ARC); Giza Egypt
| | - RH Mohamed
- Theriogenology Department; Faculty of Veterinary Medicine; Aswan University; Giza Egypt
| | | | - TR Abo Al-Naga
- Animal Health Department; Desert Research Center; Cairo Egypt
| |
Collapse
|
33
|
Bogle OA, Kumar K, Attardo-Parrinello C, Lewis SEM, Estanyol JM, Ballescà JL, Oliva R. Identification of protein changes in human spermatozoa throughout the cryopreservation process. Andrology 2016; 5:10-22. [PMID: 27860400 DOI: 10.1111/andr.12279] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 07/15/2016] [Accepted: 07/30/2016] [Indexed: 01/11/2023]
Abstract
Cryoinjury is a consequence of cryopreservation and may have a negative impact on sperm quality regarding motility, morphology, and viability. This study was designed to identify potential proteomic changes in human sperm cells throughout the cryopreservation process. Comparisons made within this study included the detection of the sperm proteomic changes induced by incubation of the sperm cells with a protein-free cryoprotectant (with and without CryoSperm), and the proteomic changes induced by freezing, thawing, and subsequent after-thawing incubation at two different temperatures (0 °C vs. 23 °C). Tandem Mass Tag (TMT) peptide labeling coupled with LC-MS/MS was used for protein quantification. LC-MS/MS resulted in the identification of 769 quantifiable proteins. The abundance of 105 proteins was altered upon CryoSperm incubation. Freezing and thawing also induced substantial protein changes. However, fewer changes were observed when semen was thawed and then maintained after-thawing at approximately 0 °C than when it was maintained after-thawing at 23 °C, with 60 and 99 differential proteins detected, respectively, as compared to unfrozen semen incubated in CryoSperm. Collectively, these differences indicate that substantial changes occur in the sperm proteome at every stage of the cryopreservation process which may ultimately impair the sperm fertilizing capability. This is the first study to compare protein levels in fresh and cryopreserved semen using the TMT technology coupled to LC-MS/MS.
Collapse
Affiliation(s)
- O A Bogle
- Molecular Biology of Reproduction and Development Research Group, Department of Biomedicine, Faculty of Medicine, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Biochemistry and Molecular Genetics Service, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - K Kumar
- Centre for Public Health, Reproductive Medicine, Institute of Clinical Science, Queen's University Belfast, Northern Ireland, UK
| | - C Attardo-Parrinello
- Molecular Biology of Reproduction and Development Research Group, Department of Biomedicine, Faculty of Medicine, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Biochemistry and Molecular Genetics Service, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - S E M Lewis
- Centre for Public Health, Reproductive Medicine, Institute of Clinical Science, Queen's University Belfast, Northern Ireland, UK
| | - J M Estanyol
- Proteomics Unit, Scientific Technical Services, University of Barcelona, Barcelona, Spain
| | - J L Ballescà
- Clinic Institute of Gynecology, Obstetrics and Neonatology, Clinic Hospital, Barcelona, Spain
| | - R Oliva
- Molecular Biology of Reproduction and Development Research Group, Department of Biomedicine, Faculty of Medicine, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Biochemistry and Molecular Genetics Service, Hospital Clínic, University of Barcelona, Barcelona, Spain
| |
Collapse
|
34
|
López-Leal R, Alvarez J, Court FA. Origin of axonal proteins: Is the axon-schwann cell unit a functional syncytium? Cytoskeleton (Hoboken) 2016; 73:629-639. [DOI: 10.1002/cm.21319] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 07/28/2016] [Accepted: 08/02/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Rodrigo López-Leal
- Faculty of Sciences, Center for Integrative Biology; Universidad Mayor; Santiago Chile
- Geroscience Center for Brain Health and Metabolism; Santiago Chile
- Millenium Nucleus for Regenerative Biology; Santiago Chile
| | - Jaime Alvarez
- Faculty of Sciences, Center for Integrative Biology; Universidad Mayor; Santiago Chile
- Millenium Nucleus for Regenerative Biology; Santiago Chile
| | - Felipe A. Court
- Faculty of Sciences, Center for Integrative Biology; Universidad Mayor; Santiago Chile
- Geroscience Center for Brain Health and Metabolism; Santiago Chile
- Millenium Nucleus for Regenerative Biology; Santiago Chile
| |
Collapse
|
35
|
Darr CR, Cortopassi GA, Datta S, Varner DD, Meyers SA. Mitochondrial oxygen consumption is a unique indicator of stallion spermatozoal health and varies with cryopreservation media. Theriogenology 2016; 86:1382-92. [DOI: 10.1016/j.theriogenology.2016.04.082] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 04/26/2016] [Accepted: 04/26/2016] [Indexed: 12/31/2022]
|
36
|
Simon L, Aston KI, Emery BR, Hotaling J, Carrell DT. Sperm DNA damage output parameters measured by the alkaline Comet assay and their importance. Andrologia 2016; 49. [DOI: 10.1111/and.12608] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2016] [Indexed: 01/10/2023] Open
Affiliation(s)
- L. Simon
- Andrology and IVF Laboratory; Department of Surgery (Urology); University of Utah; Salt Lake City UT USA
| | - K. I. Aston
- Andrology and IVF Laboratory; Department of Surgery (Urology); University of Utah; Salt Lake City UT USA
| | - B. R. Emery
- Andrology and IVF Laboratory; Department of Surgery (Urology); University of Utah; Salt Lake City UT USA
| | - J. Hotaling
- Andrology and IVF Laboratory; Department of Surgery (Urology); University of Utah; Salt Lake City UT USA
| | - D. T. Carrell
- Andrology and IVF Laboratory; Department of Surgery (Urology); University of Utah; Salt Lake City UT USA
- Department of Obstetrics and Gynecology; University of Utah; Salt Lake City UT USA
- Department of Human Genetics; University of Utah; Salt Lake City UT USA
| |
Collapse
|
37
|
Jerez R, González N, Olaciregui M, Luño V, Blas ID, Gil L. Use of soy milk combined with different cryoprotectants for the ram semen cryopreservation. Small Rumin Res 2016. [DOI: 10.1016/j.smallrumres.2015.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
38
|
Scherr T, Knapp GL, Guitreau A, Park DSW, Tiersch T, Nandakumar K, Monroe WT. Microfluidics and numerical simulation as methods for standardization of zebrafish sperm cell activation. Biomed Microdevices 2015; 17:65. [PMID: 26026298 DOI: 10.1007/s10544-015-9957-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Sperm cell activation plays a critical role in a range of biological and engineering processes, from fertilization to cryopreservation protocol evaluation. Across a range of species, ionic and osmotic effects have been discovered that lead to activation. Sperm cells of zebrafish (Danio rerio) initiate motility in a hypoosmotic environment. In this study, we employ a microfluidic mixer for the purpose of rapidly diluting the extracellular medium to initiate the onset of cell motility. The use of a microchannel offers a rapid and reproducible mixing profile throughout the device. This greatly reduces variability from trial to trial relative to the current methods of analysis. Coupling these experiments with numerical simulations, we were able to investigate the dynamics of intracellular osmolality as each cell moves along its path through the micromixer. Our results suggest that intracellular osmolality, and hence intracellular ion concentration, only slightly decreases, contrary to the common thought that larger changes in these parameters are required for activation. Utilizing this framework, microfluidics for controlled extracellular environments and associated numerical modeling, has practical applicability in standardizing high-throughput aquatic sperm activation, and more fundamentally, investigations of the intracellular environment leading to motility.
Collapse
Affiliation(s)
- Thomas Scherr
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | | | | | | | | | | | | |
Collapse
|
39
|
Cuevas-Uribe R, Chesney EJ, Daly J, Tiersch TR. Vitrification of Sperm from Marine Fishes: Effect on Motility and Membrane Integrity. AQUACULTURE RESEARCH 2015; 46:1770-1784. [PMID: 26074721 PMCID: PMC4462170 DOI: 10.1111/are.12337] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Our goal was to develop a standardized approach for sperm vitrification of marine fishes that can be applied generally in aquatic species. The objectives were to: 1) estimate acute toxicity of cryoprotectants over a range of concentrations; 2) evaluate the properties of vitrification solutions (VS); 3) evaluate different thawing solutions, and 4) evaluate sperm quality after thawing by examination of motility and membrane integrity. Sperm were collected from red snapper (Lutjanus campechanus), spotted seatrout (Cynoscion nebulosus), and red drum (Sciaenops ocellatus). A total of 29 combinations of cryoprotectants were evaluated for toxicity and glass formation. Samples were loaded onto 10-µL polystyrene loops and plunged into liquid nitrogen. There was a significant difference (P < 0.05) in post-thaw motility among VS and among species when using the same VS. The sperm in VS of 15% DMSO + 15% ethylene glycol + 10% glycerol + 1% X-1000™ + 1% Z-1000™ had an average post-thaw motility of 58% and membrane integrity of 19% for spotted seatrout, 38% and 9% for red snapper, and 30% and 19% for red drum. Adaptations by marine fish to high osmotic pressures could explain the survival in the high cryoprotectant concentrations. Vitrification offers an alternative to conventional cryopreservation.
Collapse
Affiliation(s)
- Rafael Cuevas-Uribe
- Aquaculture Research Station, Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
| | - Edward J Chesney
- Louisiana Universities Marine Consortium, 8124 Highway 56, Chauvin, LA 70344, USA
| | - Jonathan Daly
- Aquaculture Research Station, Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
| | - Terrence R Tiersch
- Aquaculture Research Station, Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
| |
Collapse
|
40
|
Effect of Ethylene Glycol (EG) on the Viability of Mammalian Embryo during Cryopreservation. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2014. [DOI: 10.12750/jet.2014.29.3.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
|
41
|
Anderson DM, Benson JD, Kearsley AJ. Foundations of modeling in cryobiology-I: concentration, Gibbs energy, and chemical potential relationships. Cryobiology 2014; 69:349-60. [PMID: 25240602 DOI: 10.1016/j.cryobiol.2014.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/07/2014] [Accepted: 09/02/2014] [Indexed: 11/16/2022]
Abstract
Mathematical modeling plays an enormously important role in understanding the behavior of cells, tissues, and organs undergoing cryopreservation. Uses of these models range from explanation of phenomena, exploration of potential theories of damage or success, development of equipment, and refinement of optimal cryopreservation/cryoablation strategies. Over the last half century there has been a considerable amount of work in bio-heat and mass-transport, and these models and theories have been readily and repeatedly applied to cryobiology with much success. However, there are significant gaps between experimental and theoretical results that suggest missing links in models. One source for these potential gaps is that cryobiology is at the intersection of several very challenging aspects of transport theory: it couples multi-component, moving boundary, multiphase solutions that interact through a semipermeable elastic membrane with multicomponent solutions in a second time-varying domain, during a two-hundred Kelvin temperature change with multi-molar concentration gradients and multi-atmosphere pressure changes. In order to better identify potential sources of error, and to point to future directions in modeling and experimental research, we present a three part series to build from first principles a theory of coupled heat and mass transport in cryobiological systems accounting for all of these effects. The hope of this series is that by presenting and justifying all steps, conclusions may be made about the importance of key assumptions, perhaps pointing to areas of future research or model development, but importantly, lending weight to standard simplification arguments that are often made in heat and mass transport. In this first part, we review concentration variable relationships, their impact on choices for Gibbs energy models, and their impact on chemical potentials.
Collapse
Affiliation(s)
- Daniel M Anderson
- Applied and Computational Mathematics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8910, United States; Department of Mathematical Sciences, George Mason University, Fairfax, VA 22030, United States.
| | - James D Benson
- Applied and Computational Mathematics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8910, United States; Department of Mathematical Sciences, Northern Illinois University, DeKalb, IL 60115-2888, United States.
| | - Anthony J Kearsley
- Applied and Computational Mathematics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8910, United States.
| |
Collapse
|
42
|
Álvarez C, Gil L, González N, Olaciregui M, Luño V. Equine sperm post-thaw evaluation after the addition of different cryoprotectants added to INRA 96® extender. Cryobiology 2014; 69:144-8. [DOI: 10.1016/j.cryobiol.2014.06.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 06/24/2014] [Accepted: 06/25/2014] [Indexed: 10/25/2022]
|
43
|
Zhou X, Gao F, Shu Z, Chung JH, Heimfeld S, Gao D. Theoretical and experimental analyses of optimal experimental design for determination of hydraulic conductivity of cell membrane. Biopreserv Biobank 2014; 8:147-52. [PMID: 24836483 DOI: 10.1089/bio.2010.0011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Determination of cell hydraulic conductivity (Lp) is required to predict the optimal conditions for cell cryopreservation. One of the critical procedures associated with the determination of Lp is to measure the kinetics of cell volume change in response to a sudden cell exposure to anisosmotic media until the cells achieve an osmotic equilibrium state. To achieve accurate measurement, it should be ensured that (1) the cell osmotic equilibration process is sufficiently slow, and (2) the total cell volume change (ΔV) is much larger than the resolution of the measuring device (δ). In this article, a cell's half volume excursion time (t*) was defined as the time in which osmotically active cell water volume increases or decreases by half of its maximum change. Based on the water transport equations, a series of analytical solutions were derived. The t* and ΔV were expressed as functions of 2 control variables: initial intracellular osmolality (Mo) and extracellular osmolality (Me), and the effects of Me and Mo on t* and ΔV were predicted theoretically. The predictions were confirmed by performing experiments using two different cell types. In the light of this study, a strategy to optimize the experiment design for the Lp determination is suggested.
Collapse
Affiliation(s)
- Xiaoming Zhou
- 1 School of Mechatronics Engineering, University of Electronic Science and Technology of China , Chengdu, Sichuan, China
| | | | | | | | | | | |
Collapse
|
44
|
Johnson AEM, Freeman EW, Wildt DE, Songsasen N. Spermatozoa from the maned wolf (Chrysocyon brachyurus) display typical canid hyper-sensitivity to osmotic and freezing-induced injury, but respond favorably to dimethyl sulfoxide. Cryobiology 2014; 68:361-70. [PMID: 24731851 DOI: 10.1016/j.cryobiol.2014.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 04/04/2014] [Accepted: 04/07/2014] [Indexed: 10/25/2022]
Abstract
We assessed the influences of medium osmolality, cryoprotectant and cooling and warming rate on maned wolf (Chrysocyon brachyurus) spermatozoa. Ejaculates were exposed to Ham's F10 medium (isotonic control) or to this medium plus NaCl (350-1000mOsm), sucrose (369 and 479mOsm), 1M glycerol (1086mOsm) or dimethyl sulfoxide (Me2SO, 1151mOsm) for 10 min. Each sample then was diluted back into Ham's medium and assessed for sperm motility and plasma membrane integrity. Although glycerol and Me2SO had no influence (P>0.05), NaCl and sucrose solutions affected sperm motility (P<0.05), but not membrane integrity. Motility of sperm exposed to <600mOsm NaCl or sucrose was less (P<0.05) than fresh ejaculate, but comparable (P>0.05) to the control. As osmolality of the NaCl solution increased, motility decreased to <5%. In a separate study, ejaculates were diluted in Test Yolk Buffer containing 1M glycerol or Me2SO and cooled from 5°C to -120°C at -57.8°C, -124.2°C or -67.0°C/min, frozen in LN2, thawed in a water bath for 30s at 37°C or 10s at 50°C, and then assessed for motility, plasma- and acrosomal membrane integrity. Cryopreservation markedly (P<0.05) reduced sperm motility by 70% compared to fresh samples. Higher (P<0.05) post-thaw motility (20.0±1.9% versus 13.5±2.1%) and membrane integrity (51.2±1.7% versus 41.5±2.2%) were observed in samples cryopreserved in Me2SO than in glycerol. Cooling rates influenced survival of sperm cryopreserved in glycerol with -57.8°C/min being advantageous (P<0.05). The findings demonstrate that although maned wolf spermatozoa are similar to domestic dog sperm in their sensitivity to osmotic-induced motility damage, the plasma membranes tolerate dehydration, and the cells respond favorably to Me2SO as a cryoprotectant.
Collapse
Affiliation(s)
- Amy E M Johnson
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA; Department of Environmental Science and Policy, George Mason University, Fairfax, VA, USA
| | | | - David E Wildt
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA
| | - Nucharin Songsasen
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA.
| |
Collapse
|
45
|
Xu Y, Zhao G, Zhou X, Ding W, Shu Z, Gao D. Biotransport and intracellular ice formation phenomena in freezing human embryonic kidney cells (HEK293T). Cryobiology 2014; 68:294-302. [DOI: 10.1016/j.cryobiol.2014.02.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 01/16/2014] [Accepted: 02/20/2014] [Indexed: 10/25/2022]
|
46
|
Model MA. Possible causes of apoptotic volume decrease: an attempt at quantitative review. Am J Physiol Cell Physiol 2014; 306:C417-24. [DOI: 10.1152/ajpcell.00328.2013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cell shrinkage and dehydration are essential characteristics of apoptosis, and loss of as much as half of the initial cell volume is not uncommon. This phenomenon is usually explained by efflux of K+and Cl−. We reexamine this hypothesis on the basis of the available data for ion concentrations and the requirements for osmotic equilibrium and electroneutrality. In addition to ion loss, we discuss the possible impacts of several other processes: efflux of low-molecular-weight osmolytes, acidification of the cytosol, effects of water channels and pumps, heterogeneity of intracellular water, and dissociation of apoptotic bodies. We conclude that most mammalian cells are theoretically capable of reducing their volume by 15–20% through ion loss or a decrease in cytosolic pH, although, in reality, the contribution of these mechanisms to apoptotic shrinkage may be smaller. Transitions between osmotically active and inactive water pools might influence cell volume as well; these mechanisms are poorly understood but are amenable to experimental study. Dissociation of apoptotic bodies is a separate mechanism of volume reduction and should be monitored closely; this can be best achieved by measurement of intracellular water, rather than cell volume.
Collapse
Affiliation(s)
- Michael A. Model
- Department of Biological Sciences, Kent State University, Kent, Ohio
| |
Collapse
|
47
|
Olaciregui M, Gil L, Montón A, Luño V, Jerez RA, Martí JI. Cryopreservation of epididymal stallion sperm. Cryobiology 2014; 68:91-5. [PMID: 24412395 DOI: 10.1016/j.cryobiol.2013.12.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 12/30/2013] [Accepted: 12/30/2013] [Indexed: 10/25/2022]
Abstract
Any event that makes semen collection or mating impossible, such as death, castration, or injury, may terminate a stallion's breeding career. Fortunately, stallion sperm which are capable of fertilization can be harvested from the epididymis, and frozen for future use. However, the fertility of frozen-thawed epididymal sperm has been found to be lower than that of ejaculated sperm. Therefore, this study aimed to optimize the fertility of frozen epididymal stallion sperm by investigating the effects of different cryoprotectants and freezing protocols on sperm quality. Dimethylformamide was tested alone or combination with pasteurized egg yolk as substitute of fresh egg yolk. In addition, the effect of the pre-freeze stabilization on sperm quality was analyzed. Heterospermic samples obtained from stallion epididymis were collected and cryopreserved in lactose-egg-yolk extender or in the same extender with varying content of cryoprotectant and content of egg yolk, stabilized and no-stabilized. Sperm motility, viability, hypoosmotic swelling test (HOST) and acrosome integrity were evaluated post-thawing. No improvement was observed on the replacement of fresh yolk by pasteurized egg yolk, whereas the results suggest that dimethylformamide is a cryoprotectant suitable for cryopreservation of equine epididymal semen, even better than glycerol. In addition, we found that the stabilization before freezing on epididymal stallion sperm, can improve sperm quality parameters.
Collapse
Affiliation(s)
- M Olaciregui
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, Universidad de Zaragoza, Spain.
| | - L Gil
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, Universidad de Zaragoza, Spain
| | - A Montón
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, Universidad de Zaragoza, Spain
| | - V Luño
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, Universidad de Zaragoza, Spain
| | - R A Jerez
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, Universidad de Zaragoza, Spain
| | - J I Martí
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, Universidad de Zaragoza, Spain
| |
Collapse
|
48
|
Martorana K, Klooster K, Meyers S. Suprazero cooling rate, rather than freezing rate, determines post thaw quality of rhesus macaque sperm. Theriogenology 2013; 81:381-8. [PMID: 24239181 DOI: 10.1016/j.theriogenology.2013.10.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/02/2013] [Accepted: 10/04/2013] [Indexed: 12/16/2022]
Abstract
Sperm become most sensitive to cold shock when cooled from 37 °C to 5 °C at rates that are too fast or too slow; cold shock increases the susceptibility to oxidative damage owing to its influence on reactive oxygen species (ROS) production, which are significant stress factors generated during cooling and low temperature storage. In addition, ROS may be a main cause of decreased motility and fertility upon warming. They have been shown to change cellular function through the disruption of the sperm plasma membrane and through damage to proteins and DNA. The objective of this study was to determine which cryopreservation rates result in the lowest degree of oxidative damage and greatest sperm quality. In the rhesus model, it has not been determined whether suprazero cooling or subzero freezing rates causes a significant amount of ROS damage to sperm. Semen samples were collected from male rhesus macaques, washed, and resuspended in TEST-yolk cryopreservation buffer to 100 × 10(6) sperm/mL. Sperm were frozen in 0.5-mL straws at four different combinations of suprazero and subzero rates. Three different suprazero rates were used between 22 °C and 0 °C: 0.5 °C/min (slow), 45 °C/min (medium), and 93 °C/min (fast). These suprazero rates were used in combination with two different subzero rates for temperatures 0 °C to -110 °C: 42 °C/min (medium) and 87 °C/min (fast). The different freezing groups were as follows: slow-med (SM), slow-fast (SF), med-med (MM), and fast-fast (FF). Flow cytometry was used to detect lipid peroxidation (LPO), a result of ROS generation. Motility was evaluated using a computer assisted sperm motion analyzer. The MM and FF treated sperm had less viable (P < 0.0001) and motile sperm (P < 0.001) than the SM, SF, or fresh sperm. Sperm exposed to MM and FF treatments demonstrated significantly higher oxidative damage than SM, SF, or fresh sperm (P < 0.05). The SM- and SF-treated sperm showed decreased motility, membrane integrity, and LPO compared with fresh semen (P < 0.001). Slow cooling from room temperature promotes higher membrane integrity and motility post thaw, compared with medium or fast cooling rates. Cells exposed to similar cooling rates with differing freezing rates were not different in motility and membrane integrity, whereas comparison of cells exposed to differing cooling rates with similar freezing rates indicated significant differences in motility, membrane integrity, and LPO. These data suggest that sperm quality seems to be more sensitive to the cooling, rather than freezing rate and highlight the role of the suprazero cooling rate in post thaw sperm quality.
Collapse
Affiliation(s)
- Kelly Martorana
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Katie Klooster
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Stuart Meyers
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA, USA.
| |
Collapse
|
49
|
Mortimer D, Barratt CLR, Björndahl L, de Jager C, Jequier AM, Muller CH. What should it take to describe a substance or product as 'sperm-safe'. Hum Reprod Update 2013; 19 Suppl 1:i1-45. [PMID: 23552271 DOI: 10.1093/humupd/dmt008] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Male reproductive potential continues to be adversely affected by many environmental, industrial and pharmaceutical toxins. Pre-emptive testing for reproductive toxicological (side-)effects remains limited, or even non-existent. Many products that come into direct contact with spermatozoa lack adequate testing for the absence of adverse effects, and numerous products that are intended for exposure to spermatozoa have only a general assumption of safety based on the absence of evidence of actual harm. Such assumptions can have unfortunate adverse impacts on at-risk individuals (e.g. couples who are trying to conceive), illustrating a clear need for appropriate up-front testing to establish actual 'sperm safety'. METHODS After compiling a list of general areas within the review's scope, relevant literature and other information was obtained from the authors' personal professional libraries and archives, and supplemented as necessary using PubMed and Google searches. Review by co-authors identified and eliminated errors of omission or bias. RESULTS This review provides an overview of the broad range of substances, materials and products that can affect male fertility, especially through sperm fertilizing ability, along with a discussion of practical methods and bioassays for their evaluation. It is concluded that products can only be claimed to be 'sperm-safe' after performing objective, properly designed experimental studies; extrapolation from supposed predicate products or other assumptions cannot be trusted. CONCLUSIONS We call for adopting the precautionary principle, especially when exposure to a product might affect not only a couple's fertility potential but also the health of resulting offspring and perhaps future generations.
Collapse
Affiliation(s)
- David Mortimer
- Oozoa Biomedical Inc., Caulfeild Village, West Vancouver, BC, Canada.
| | | | | | | | | | | |
Collapse
|
50
|
Motamedi-Mojdehi R, Roostaei-Ali Mehr M, Rajabi-Toustani R. Effect of different levels of glycerol and cholesterol-loaded cyclodextrin on cryosurvival of ram spermatozoa. Reprod Domest Anim 2013; 49:65-70. [PMID: 23931733 DOI: 10.1111/rda.12225] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 07/09/2013] [Indexed: 11/29/2022]
Abstract
This study was conducted to determine the optimum level of glycerol and cholesterol-loaded cyclodextrin (CLC) in a Tris-based diluent for cryopreservation of ram spermatozoa. Ram semen was treated with 0, 1.5, 3 or 4.5 mg CLC/120 × 10(6) cells in Tris-based diluents containing 3, 5 or 7% glycerol in a factorial arrangement 3 × 4 and frozen in liquid nitrogen vapour. Sperm motility, viability (eosin-nigrosin staining) and functional membrane integrity (hypo-osmotic swelling test) were assessed immediately after thawing (0 h) and subsequently after 3 and 6 h at 37°C. There was an interaction between CLC and glycerol on the functional membrane integrity (p < 0.05). In the presence of 3% glycerol, the highest functional membrane integrity (32.2%) was found in the spermatozoa treated with 1.5 mg CLC/120 × 10(6) sperm. Post-thaw sperm motility was highest in 1.5 mg CLC immediately after thawing (40.5%) and after 3-h (30.6%) incubation at 37°C (p < 0.05). Viability of spermatozoa was higher in all CLC treatments than in the untreated samples, and it was highest (33.9%) in the spermatozoa treated with 1.5 mg CLC (p < 0.05). These data indicate that the addition of cholesterol to sperm membranes by 1.5 mg CLC/120 × 10(6) cells may allow the use of a lower concentration of glycerol (3%), which is sufficient to mitigate the detrimental effects of freezing and thawing.
Collapse
Affiliation(s)
- R Motamedi-Mojdehi
- Department of Animal Science, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
| | | | | |
Collapse
|