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Bar Dolev M, Adar C, Sirotinskaya V, Braslavsky I. Large-Scale Purification of Natural Ice-Binding Proteins by the Falling Water Ice Purification Method. Methods Mol Biol 2024; 2730:63-71. [PMID: 37943450 DOI: 10.1007/978-1-0716-3503-2_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
We describe here a generic technique for purification of ice-binding proteins (IBPs) using a commercial ice machine. The method, which is called falling water ice purification (FWIP) [1], is based on the affinity of the proteins to ice, and it is therefore suitable for any IBP, natural and synthetic, with and without fused segments or domains. The FWIP method does not require the addition of tags to the protein, nor the use of resins and additives, and is suitable for large-scale purification. These features may turn FWIP useful also in the food and medical sectors.
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Affiliation(s)
- Maya Bar Dolev
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
- Faculty of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Haifa, Israel
| | - Chen Adar
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Vera Sirotinskaya
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Ido Braslavsky
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.
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2
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INAGAWA A. Development of Analytical Platforms Utilizing Micro/Nanospaces Generated by Phase Separation of Aqueous Solutions. BUNSEKI KAGAKU 2022. [DOI: 10.2116/bunsekikagaku.71.399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gharib G, Saeidiharzand S, Sadaghiani AK, Koşar A. Antifreeze Proteins: A Tale of Evolution From Origin to Energy Applications. Front Bioeng Biotechnol 2022; 9:770588. [PMID: 35186912 PMCID: PMC8851421 DOI: 10.3389/fbioe.2021.770588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 12/31/2021] [Indexed: 11/19/2022] Open
Abstract
Icing and formation of ice crystals is a major obstacle against applications ranging from energy systems to transportation and aviation. Icing not only introduces excess thermal resistance, but it also reduces the safety in operating systems. Many organisms living under harsh climate and subzero temperature conditions have developed extraordinary survival strategies to avoid or delay ice crystal formation. There are several types of antifreeze glycoproteins with ice-binding ability to hamper ice growth, ice nucleation, and recrystallization. Scientists adopted similar approaches to utilize a new generation of engineered antifreeze and ice-binding proteins as bio cryoprotective agents for preservation and industrial applications. There are numerous types of antifreeze proteins (AFPs) categorized according to their structures and functions. The main challenge in employing such biomolecules on industrial surfaces is the stabilization/coating with high efficiency. In this review, we discuss various classes of antifreeze proteins. Our particular focus is on the elaboration of potential industrial applications of anti-freeze polypeptides.
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Affiliation(s)
- Ghazaleh Gharib
- Faculty of Engineering and Natural Sciences (FENS), Sabanci University, Istanbul, Turkey
- Sabanci University Nanotechnology and Application Center (SUNUM), Sabanci University, Istanbul, Turkey
- Center of Excellence for Functional Surfaces and Interfaces for Nano-Diagnostics (EFSUN), Sabanci University, Istanbul, Turkey
| | - Shaghayegh Saeidiharzand
- Faculty of Engineering and Natural Sciences (FENS), Sabanci University, Istanbul, Turkey
- Sabanci University Nanotechnology and Application Center (SUNUM), Sabanci University, Istanbul, Turkey
| | - Abdolali K. Sadaghiani
- Faculty of Engineering and Natural Sciences (FENS), Sabanci University, Istanbul, Turkey
- Sabanci University Nanotechnology and Application Center (SUNUM), Sabanci University, Istanbul, Turkey
- Center of Excellence for Functional Surfaces and Interfaces for Nano-Diagnostics (EFSUN), Sabanci University, Istanbul, Turkey
- *Correspondence: Abdolali K. Sadaghiani, ; Ali Koşar,
| | - Ali Koşar
- Faculty of Engineering and Natural Sciences (FENS), Sabanci University, Istanbul, Turkey
- Sabanci University Nanotechnology and Application Center (SUNUM), Sabanci University, Istanbul, Turkey
- Center of Excellence for Functional Surfaces and Interfaces for Nano-Diagnostics (EFSUN), Sabanci University, Istanbul, Turkey
- *Correspondence: Abdolali K. Sadaghiani, ; Ali Koşar,
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Baskaran A, Kaari M, Venugopal G, Manikkam R, Joseph J, Bhaskar PV. Anti freeze proteins (Afp): Properties, sources and applications - A review. Int J Biol Macromol 2021; 189:292-305. [PMID: 34419548 DOI: 10.1016/j.ijbiomac.2021.08.105] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 11/17/2022]
Abstract
Extreme cold marine and freshwater temperatures (below 4 °C) induce massive deterioration to the cell membranes of organisms resulting in the formation of ice crystals, consequently causing organelle damage or cell death. One of the adaptive mechanisms organisms have evolved to thrive in cold environments is the production of antifreeze proteins with the functional capabilities to withstand frigid temperatures. Antifreeze proteins are extensively identified in different cold-tolerant species and they facilitate the persistence of cold-adapted organisms by decreasing the freezing point of their body fluids. Various structurally diverse types of antifreeze proteins detected possess the ability to modify ice crystal growth by thermal hysteresis and ice recrystallization inhibition. The unique properties of antifreeze proteins have made them a promising resource in industry, biomedicine, food storage and cryobiology. This review collates the findings of the various studies carried out in the past and the recent developments observed in the properties, functional mechanisms, classification, distinct sources and the ever-increasing applications of antifreeze proteins. This review also summarizes the possibilities of the way forward to identify new avenues of research on anti-freeze proteins.
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Affiliation(s)
- Abirami Baskaran
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India
| | - Manigundan Kaari
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India
| | - Gopikrishnan Venugopal
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India
| | - Radhakrishnan Manikkam
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India.
| | - Jerrine Joseph
- Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai 600 119, Tamil Nadu, India
| | - Parli V Bhaskar
- National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Vasco-da-Gama 403804, Goa, India
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Takago S, Matsumoto I, Kato H, Saito N, Ueda H, Iino K, Kimura K, Takemura H. Hypothermic preservation of rat hearts using antifreeze glycoprotein. Physiol Res 2020; 69:1029-1038. [PMID: 33251809 DOI: 10.33549/physiolres.934473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Antifreeze proteins are an effective additive for low-temperature preservation of solid organs. Here, we compared static hypothermic preservation with and without antifreeze glycoprotein (AFGP), followed by nonfreezing cryopreservation of rat hearts. The heart was surgically extracted and immersed in one of the cardioplegia solutions after cardiac arrest. Control rat hearts (n=6) were immersed in University of Wisconsin (UW) solution whereas AFGP-treated hearts (AFGP group) (n=6) were immersed in UW solution containing 500 ?g/ml AFGP. After static hypothermic preservation, a Langendorff apparatus was used to reperfuse the coronary arteries with oxygenated Krebs-Henseleit solution. After 30, 60, 90, and 120 min, the heart rate (HR), coronary flow (CF), cardiac contractile force (max dP/dt), and cardiac diastolic force (min dP/dt) were measured. Tissue water content (TWC) and tissue adenosine triphosphate (ATP) levels in the reperfused preserved hearts were also assessed. All the parameters were compared between the control and AFGP groups. Compared with the control group, the AFGP group had significantly (p<0.05) higher values of the following parameters: HR at 60, 90, and 120 min; CF at all four time points; max dP/dt at 90 min; min dP/dt at 90 and 120 min; and tissue ATP levels at 120 min. TWC did not differ significantly between the groups. The higher HR, CF, max dP/dt, min dP/dt, and tissue ATP levels in the AFGP compared with those in control hearts suggested that AFGP conferred superior hemodynamic and metabolic functions. Thus, AFGP might be a useful additive for the static/nonfreezing hypothermic preservation of hearts.
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Affiliation(s)
- S Takago
- Department of Cardiovascular Surgery, Kanazawa University, Kanazawa, Ishikawa, Japan.
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Sun S, Ding H, Wang D, Han S. Identifying Antifreeze Proteins Based on Key Evolutionary Information. Front Bioeng Biotechnol 2020; 8:244. [PMID: 32274383 PMCID: PMC7113384 DOI: 10.3389/fbioe.2020.00244] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/09/2020] [Indexed: 01/08/2023] Open
Abstract
Antifreeze proteins are important antifreeze materials that have been widely used in industry, including in cryopreservation, de-icing, and food storage applications. However, the quantity of some commercially produced antifreeze proteins is insufficient for large-scale industrial applications. Further, many antifreeze proteins have properties such as cytotoxicity, severely hindering their applications. Understanding the mechanisms underlying the protein-ice interactions and identifying novel antifreeze proteins are, therefore, urgently needed. In this study, to uncover the mechanisms underlying protein-ice interactions and provide an efficient and accurate tool for identifying antifreeze proteins, we assessed various evolutionary features based on position-specific scoring matrices (PSSMs) and evaluated their importance for discriminating of antifreeze and non-antifreeze proteins. We then parsimoniously selected seven key features with the highest importance. We found that the selected features showed opposite tendencies (regarding the conservation of certain amino acids) between antifreeze and non-antifreeze proteins. Five out of the seven features had relatively high contributions to the discrimination of antifreeze and non-antifreeze proteins, as revealed by a principal component analysis, i.e., the conservation of the replacement of Cys, Trp, and Gly in antifreeze proteins by Ala, Met, and Ala, respectively, in the related proteins, and the conservation of the replacement of Arg in non-antifreeze proteins by Ser and Arg in the related proteins. Based on the seven parsimoniously selected key features, we established a classifier using support vector machine, which outperformed the state-of-the-art tools. These results suggest that understanding evolutionary information is crucial to designing accurate automated methods for discriminating antifreeze and non-antifreeze proteins. Our classifier, therefore, is an efficient tool for annotating new proteins with antifreeze functions based on sequence information and can facilitate their application in industry.
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Affiliation(s)
- Shanwen Sun
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Hui Ding
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Donghua Wang
- Department of General Surgery, Heilongjiang Province Land Reclamation Headquarters General Hospital, Harbin, China
| | - Shuguang Han
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
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Tsuda S, Yamauchi A, Khan NMMU, Arai T, Mahatabuddin S, Miura A, Kondo H. Fish-Derived Antifreeze Proteins and Antifreeze Glycoprotein Exhibit a Different Ice-Binding Property with Increasing Concentration. Biomolecules 2020; 10:biom10030423. [PMID: 32182859 PMCID: PMC7175324 DOI: 10.3390/biom10030423] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/06/2020] [Accepted: 03/06/2020] [Indexed: 01/01/2023] Open
Abstract
The concentration of a protein is highly related to its biochemical properties, and is a key determinant for its biotechnological applications. Antifreeze proteins (AFPs) and antifreeze glycoproteins (AFGPs) are structurally diverse macromolecules that are capable of binding to embryonic ice crystals below 0 °C, making them useful as protectants of ice-block formation. In this study, we examined the maximal solubility of native AFP I–III and AFGP with distilled water, and evaluated concentration dependence of their ice-binding property. Approximately 400 mg/mL (AFP I), 200 mg/mL (AFP II), 100 mg/mL (AFP III), and >1800 mg/mL (AFGP) of the maximal solubility were estimated, and among them AFGP’s solubility is much higher compared with that of ordinary proteins, such as serum albumin (~500 mg/mL). The samples also exhibited unexpectedly high thermal hysteresis values (2–3 °C) at 50–200 mg/mL. Furthermore, the analysis of fluorescence-based ice plane affinity showed that AFP II binds to multiple ice planes in a concentration-dependent manner, for which an oligomerization mechanism was hypothesized. The difference of concentration dependence between AFPs and AFGPs may provide a new clue to help us understand the ice-binding function of these proteins.
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Affiliation(s)
- Sakae Tsuda
- Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan; (A.Y.); (N.M.-M.U.K.); (T.A.); (H.K.)
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo 062-8517, Japan;
- OPERANDO Open Innovation Laboratory, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8563, Japan
- Correspondence: ; Tel.: +81-11-857-8912
| | - Akari Yamauchi
- Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan; (A.Y.); (N.M.-M.U.K.); (T.A.); (H.K.)
| | - N. M.-Mofiz Uddin Khan
- Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan; (A.Y.); (N.M.-M.U.K.); (T.A.); (H.K.)
| | - Tatsuya Arai
- Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan; (A.Y.); (N.M.-M.U.K.); (T.A.); (H.K.)
| | - Sheikh Mahatabuddin
- Department of Nutrition and Food Engineering, Daffodil International University, Dhanmondi, Dhaka 1207, Bangladesh;
| | - Ai Miura
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo 062-8517, Japan;
| | - Hidemasa Kondo
- Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan; (A.Y.); (N.M.-M.U.K.); (T.A.); (H.K.)
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo 062-8517, Japan;
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Falling water ice affinity purification of ice-binding proteins. Sci Rep 2018; 8:11046. [PMID: 30038212 PMCID: PMC6056459 DOI: 10.1038/s41598-018-29312-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 07/10/2018] [Indexed: 12/04/2022] Open
Abstract
Ice-binding proteins (IBPs) permit their hosts to thrive in the presence of ice. The ability of IBPs to control ice growth makes them potential additives in industries ranging from food storage and cryopreservation to anti-icing systems. For IBPs to be used in commercial applications, however, methods are needed to produce sufficient quantities of high-quality proteins. Here, we describe a new method for IBP purification, termed falling water ice affinity purification (FWIP). The method is based on the affinity of IBPs for ice and does not require molecular tags. A crude IBP solution is allowed to flow over a chilled vertical surface of a commercial ice machine. The temperature of the surface is lowered gradually until ice crystals are produced, to which the IBPs bind but other solutes do not. We found that a maximum of 35 mg of IBP was incorporated in 1 kg of ice. Two rounds of FWIP resulted in >95% purity. An ice machine that produces 60 kg of ice per day can be used to purify one gram of IBP per day. In combination with efficient concentration of the protein solution by tangential flow filtration the FWIP method is suitable for the purification of grams of IBPs for research purposes and applications.
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9
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Ammar AY, El Nahas AF, Mahmoud S, Barakat ME, Hassan AM. Characterization of type IV antifreeze gene in Nile tilapia (Oreochromis niloticus) and influence of cold and hot weather on its expression and some immune-related genes. FISH PHYSIOLOGY AND BIOCHEMISTRY 2018; 44:515-525. [PMID: 29234908 DOI: 10.1007/s10695-017-0450-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
The aim of this work is to study the effect of the thermal stress of ambient temperature during winter and summer on the expression of type IV antifreeze gene (ANF IV) in different tissues of Nile tilapia (Oreochromis niloticus) as well as some immune-related genes. At first, genomic ANF IV gene was characterized from one fish; 124 amino acids were identified with 92.7% similarity with that on the gene bank. Expression of ANF IV and immune-related genes were done twice, once at the end of December (winter sample, temperature 14 °C) and the other at August (summer sample, temperature 36 °C). Assessment of ANF IV gene expression in different organs of fish was done; splenic mRNA was used for assessment of immune-related gene transcripts (CXCl2 chemokine, cc-chemokine, INF-3A, and MHC IIβ). Winter expression analysis of AFP IV in O. niloticus revealed significant upregulation of mRNA transcript levels in the intestine, gills, skin, spleen, liver, and brain with 324.03-, 170.06-, 107.63-, 97.61-, 94.35-, and 27.85-folds, respectively. Furthermore, upregulation in the gene was observed in some organs during summer: in the liver, gills, skin, intestine, and brain with lower levels compared with winter. The level of expression of immune-related genes in winter is significantly higher than summer in all assessed genes. Cc-chemokine gene expression was the most affected in both winter and summer. Variable expression profile of ANF IV in different organs and in different seasons together with its amino acid similarity of N-terminal and C-terminal with apolipoprotein (lipid binder) and form of high-density lipoprotein (HDL) suggests a different role for this protein which may be related to lipid metabolism.
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Affiliation(s)
- Asmma Y Ammar
- Biotechnology department, Animal Health Research Institute, Kafr El Sheikh, Egypt
| | - Abeer F El Nahas
- Animal Husbandry and Animal Wealth Department, Faculty of Veterinary Medicine, Alexandria University, Edfina, Behera, 22758, Egypt.
| | - Shawky Mahmoud
- Department of Physiology, Faculty of Veterinary Medicine, Kafer El Sheikh University, Kafr El Sheikh, Egypt
| | - Mohamed E Barakat
- Biotechnology Department, Animal Health Research Institute, Kafer El Sheik, Egypt
| | - Asmaa M Hassan
- Biotechnology department, Animal Health Research Institute, Kafr El Sheikh, Egypt
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Yang R, Zhang C, Gao R, Zhang L. An Effective Antifreeze Protein Predictor with Ensemble Classifiers and Comprehensive Sequence Descriptors. Int J Mol Sci 2015; 16:21191-214. [PMID: 26370959 PMCID: PMC4613249 DOI: 10.3390/ijms160921191] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 08/18/2015] [Accepted: 08/26/2015] [Indexed: 12/03/2022] Open
Abstract
Antifreeze proteins (AFPs) play a pivotal role in the antifreeze effect of overwintering organisms. They have a wide range of applications in numerous fields, such as improving the production of crops and the quality of frozen foods. Accurate identification of AFPs may provide important clues to decipher the underlying mechanisms of AFPs in ice-binding and to facilitate the selection of the most appropriate AFPs for several applications. Based on an ensemble learning technique, this study proposes an AFP identification system called AFP-Ensemble. In this system, random forest classifiers are trained by different training subsets and then aggregated into a consensus classifier by majority voting. The resulting predictor yields a sensitivity of 0.892, a specificity of 0.940, an accuracy of 0.938 and a balanced accuracy of 0.916 on an independent dataset, which are far better than the results obtained by previous methods. These results reveal that AFP-Ensemble is an effective and promising predictor for large-scale determination of AFPs. The detailed feature analysis in this study may give useful insights into the molecular mechanisms of AFP-ice interactions and provide guidance for the related experimental validation. A web server has been designed to implement the proposed method.
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Affiliation(s)
- Runtao Yang
- School of Control Science and Engineering, Shandong University, Jinan 250061, China.
| | - Chengjin Zhang
- School of Control Science and Engineering, Shandong University, Jinan 250061, China.
- School of Mechanical, Electrical and Information Engineering, Shandong University, Weihai 264209, China.
| | - Rui Gao
- School of Control Science and Engineering, Shandong University, Jinan 250061, China.
| | - Lina Zhang
- School of Control Science and Engineering, Shandong University, Jinan 250061, China.
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Ideta A, Aoyagi Y, Tsuchiya K, Nakamura Y, Hayama K, Shirasawa A, Sakaguchi K, Tominaga N, Nishimiya Y, Tsuda S. Prolonging hypothermic storage (4 C) of bovine embryos with fish antifreeze protein. J Reprod Dev 2014; 61:1-6. [PMID: 25311466 PMCID: PMC4354224 DOI: 10.1262/jrd.2014-073] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Embryos obtained via superovulation are necessary for mammalian artificial reproduction, and viability is a key determinant of success. Nonfreezing storage at 4 C is possible, but currently used storage solutions can maintain embryo viability for only 24-48 h. Here we found that 10 mg/ml antifreeze protein (AFP) dissolved in culture medium 199 with 20% (v/v) fetal bovine serum and 25 mM HEPES could keep bovine embryos alive for 10 days at 4 C. We used a recombinant AFP isolated from the notched-fin eelpout (Zoarces elongatus Kner). Photomicroscopy indicated that the AFP-embryo interaction was enhanced at 37 C. Embryos pre-warmed with the AFP solution at 37 C for 60 min maintained high viability, whereas those that were not pre-warmed could live no longer than 7 days. Thus, short-term storage of bovine embryos was achieved by a combination of AFP-containing medium and controlled pre-warming.
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Affiliation(s)
- Atsushi Ideta
- Research and Development Group, Zen-noh Embryo Transfer (ET) Center, Hokkaido 080-1407, Japan
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12
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Kamijima T, Sakashita M, Miura A, Nishimiya Y, Tsuda S. Antifreeze protein prolongs the life-time of insulinoma cells during hypothermic preservation. PLoS One 2013; 8:e73643. [PMID: 24069217 PMCID: PMC3775740 DOI: 10.1371/journal.pone.0073643] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 07/19/2013] [Indexed: 11/18/2022] Open
Abstract
It is sometimes desirable to preserve mammalian cells by hypothermia rather than freezing during short term transplantation. Here we found an ability of hypothermic (+4°C) preservation of fish antifreeze protein (AFP) against rat insulinoma cells denoted as RIN-5F. The preservation ability was compared between type I-III AFPs and antifreeze glycoprotein (AFGP), which could be recently mass-prepared by a developed technique utilizing the muscle homogenates, but not the blood serum, of cold-adapted fishes. For AFGP, whose molecular weight is distributed in the range from 2.6 to 34 kDa, only the proteins less than 10 kDa were examined. The viability rate was evaluated by counting of the preserved RIN-5F cells unstained with trypan blue. Significantly, either AFPI or AFPIII dissolved into Euro-Collins (EC) solution at a concentration of 10 mg/ml could preserve approximately 60% of the cells for 5 days at +4°C. The 5-day preserved RIN-5F cells retained the ability to secrete insulin. Only 2% of the cells were, however, preserved for 5 days without AFP. Confocal photomicroscopy experiments further showed the significant binding ability of AFP to the cell surface. These results suggest that fish AFP enables 5-day quality storage of the insulinoma cells collected from a donor without freezing.
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Affiliation(s)
- Tatsuro Kamijima
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Hokkaido, Japan
| | - Mami Sakashita
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Hokkaido, Japan
| | - Ai Miura
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Hokkaido, Japan
| | - Yoshiyuki Nishimiya
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Hokkaido, Japan
| | - Sakae Tsuda
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Hokkaido, Japan
- Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido, Japan
- * E-mail:
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13
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ASAKAWA M, AOYAGI M, KAMETA N, KOGISO M, MASUDA M, MINAMIKAWA H, SHIMIZU T. Development of massive synthesis method of organic nanotube toward practical use. ACTA ACUST UNITED AC 2009. [DOI: 10.5571/syntheng.1.169] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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