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Yang L, Leynes C, Pawelka A, Lorenzo I, Chou A, Lee B, Heaney JD. Machine learning in time-lapse imaging to differentiate embryos from young vs old mice†. Biol Reprod 2024; 110:1115-1124. [PMID: 38685607 PMCID: PMC11180621 DOI: 10.1093/biolre/ioae056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/15/2024] [Accepted: 04/05/2024] [Indexed: 05/02/2024] Open
Abstract
Time-lapse microscopy for embryos is a non-invasive technology used to characterize early embryo development. This study employs time-lapse microscopy and machine learning to elucidate changes in embryonic growth kinetics with maternal aging. We analyzed morphokinetic parameters of embryos from young and aged C57BL6/NJ mice via continuous imaging. Our findings show that aged embryos accelerated through cleavage stages (from 5-cells) to morula compared to younger counterparts, with no significant differences observed in later stages of blastulation. Unsupervised machine learning identified two distinct clusters comprising of embryos from aged or young donors. Moreover, in supervised learning, the extreme gradient boosting algorithm successfully predicted the age-related phenotype with 0.78 accuracy, 0.81 precision, and 0.83 recall following hyperparameter tuning. These results highlight two main scientific insights: maternal aging affects embryonic development pace, and artificial intelligence can differentiate between embryos from aged and young maternal mice by a non-invasive approach. Thus, machine learning can be used to identify morphokinetics phenotypes for further studies. This study has potential for future applications in selecting human embryos for embryo transfer, without or in complement with preimplantation genetic testing.
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Affiliation(s)
- Liubin Yang
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
- Division of Reproductive Endocrinology and Infertility, Division of Reproductive Sciences, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Carolina Leynes
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Ashley Pawelka
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Isabel Lorenzo
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Andrew Chou
- Pain Research, Informatics, Multi-morbidities, and Education (PRIME) Center, VA Connecticut Healthcare System, West Haven, Connecticut, USA
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Jason D Heaney
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
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Cheng D, Zhu J, Liu G, Gack MU, MacDuff DA. HOIL1 mediates MDA5 activation through ubiquitination of LGP2. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.02.587772. [PMID: 38617308 PMCID: PMC11014604 DOI: 10.1101/2024.04.02.587772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
The RIG-I-like receptors (RLRs), RIG-I and MDA5, are innate sensors of RNA virus infections that are critical for mounting a robust antiviral immune response. We have shown previously that HOIL1, a component of the Linear Ubiquitin Chain Assembly Complex (LUBAC), is essential for interferon (IFN) induction in response to viruses sensed by MDA5, but not for viruses sensed by RIG-I. LUBAC contains two unusual E3 ubiquitin ligases, HOIL1 and HOIP. HOIP generates methionine-1-linked polyubiquitin chains, whereas HOIL1 has recently been shown to conjugate ubiquitin onto serine and threonine residues. Here, we examined the differential requirement for HOIL1 and HOIP E3 ligase activities in RLR-mediated IFN induction. We determined that HOIL1 E3 ligase activity was critical for MDA5-dependent IFN induction, while HOIP E3 ligase activity played only a modest role in promoting IFN induction. HOIL1 E3 ligase promoted MDA5 oligomerization, its translocation to mitochondrial-associated membranes, and the formation of MAVS aggregates. We identified that HOIL1 can interact with and facilitate the ubiquitination of LGP2, a positive regulator of MDA5 oligomerization. In summary, our work identifies LGP2 ubiquitination by HOIL1 in facilitating the activation of MDA5 and the induction of a robust IFN response.
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Affiliation(s)
- Deion Cheng
- . Department of Microbiology and Immunology, University of Illinois Chicago College of Medicine, Chicago, Illinois, USA
| | - Junji Zhu
- . Cleveland Clinic Florida Research and Innovation Center, Port St. Lucie, Florida, USA
| | - GuanQun Liu
- . Cleveland Clinic Florida Research and Innovation Center, Port St. Lucie, Florida, USA
| | - Michaela U. Gack
- . Cleveland Clinic Florida Research and Innovation Center, Port St. Lucie, Florida, USA
| | - Donna A. MacDuff
- . Department of Microbiology and Immunology, University of Illinois Chicago College of Medicine, Chicago, Illinois, USA
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3
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Hartley VL, Qaqish AM, Wood MJ, Studnicka BT, Iwai K, Liu TC, MacDuff DA. HOIL1 Regulates Group 3 Innate Lymphoid Cells in the Colon and Protects against Systemic Dissemination, Colonic Ulceration, and Lethality from Citrobacter rodentium Infection. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1823-1834. [PMID: 37902285 PMCID: PMC10841105 DOI: 10.4049/jimmunol.2300351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/19/2023] [Indexed: 10/31/2023]
Abstract
Heme-oxidized IRP2 ubiquitin ligase-1 (HOIL1)-deficient patients experience chronic intestinal inflammation and diarrhea as well as increased susceptibility to bacterial infections. HOIL1 is a component of the linear ubiquitin chain assembly complex that regulates immune signaling pathways, including NF-κB-activating pathways. We have shown previously that HOIL1 is essential for survival following Citrobacter rodentium gastrointestinal infection of mice, but the mechanism of protection by HOIL1 was not examined. C. rodentium is an important murine model for human attaching and effacing pathogens, enteropathogenic and enterohemorrhagic Escherichia coli that cause diarrhea and foodborne illnesses and lead to severe disease in children and immunocompromised individuals. In this study, we found that C. rodentium infection resulted in severe colitis and dissemination of C. rodentium to systemic organs in HOIL1-deficient mice. HOIL1 was important in the innate immune response to limit early replication and dissemination of C. rodentium. Using bone marrow chimeras and cell type-specific knockout mice, we found that HOIL1 functioned in radiation-resistant cells and partly in radiation-sensitive cells and in myeloid cells to limit disease, but it was dispensable in intestinal epithelial cells. HOIL1 deficiency significantly impaired the expansion of group 3 innate lymphoid cells and their production of IL-22 during C. rodentium infection. Understanding the role HOIL1 plays in type 3 inflammation and in limiting the pathogenesis of attaching and effacing lesion-forming bacteria will provide further insight into the innate immune response to gastrointestinal pathogens and inflammatory disorders.
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Affiliation(s)
- Victoria L Hartley
- Department of Microbiology and Immunology, University of Illinois Chicago College of Medicine, Chicago, IL
| | - Arwa M Qaqish
- Department of Microbiology and Immunology, University of Illinois Chicago College of Medicine, Chicago, IL
| | - Matthew J Wood
- Department of Microbiology and Immunology, University of Illinois Chicago College of Medicine, Chicago, IL
| | - Brian T Studnicka
- Department of Microbiology and Immunology, University of Illinois Chicago College of Medicine, Chicago, IL
| | - Kazuhiro Iwai
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ta-Chiang Liu
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO
| | - Donna A MacDuff
- Department of Microbiology and Immunology, University of Illinois Chicago College of Medicine, Chicago, IL
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Barbayianni I, Kanellopoulou P, Fanidis D, Nastos D, Ntouskou ED, Galaris A, Harokopos V, Hatzis P, Tsitoura E, Homer R, Kaminski N, Antoniou KM, Crestani B, Tzouvelekis A, Aidinis V. SRC and TKS5 mediated podosome formation in fibroblasts promotes extracellular matrix invasion and pulmonary fibrosis. Nat Commun 2023; 14:5882. [PMID: 37735172 PMCID: PMC10514346 DOI: 10.1038/s41467-023-41614-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023] Open
Abstract
The activation and accumulation of lung fibroblasts resulting in aberrant deposition of extracellular matrix components, is a pathogenic hallmark of Idiopathic Pulmonary Fibrosis, a lethal and incurable disease. In this report, increased expression of TKS5, a scaffold protein essential for the formation of podosomes, was detected in the lung tissue of Idiopathic Pulmonary Fibrosis patients and bleomycin-treated mice. Τhe profibrotic milieu is found to induce TKS5 expression and the formation of prominent podosome rosettes in lung fibroblasts, that are retained ex vivo, culminating in increased extracellular matrix invasion. Tks5+/- mice are found resistant to bleomycin-induced pulmonary fibrosis, largely attributed to diminished podosome formation in fibroblasts and decreased extracellular matrix invasion. As computationally predicted, inhibition of src kinase is shown to potently attenuate podosome formation in lung fibroblasts and extracellular matrix invasion, and bleomycin-induced pulmonary fibrosis, suggesting pharmacological targeting of podosomes as a very promising therapeutic option in pulmonary fibrosis.
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Affiliation(s)
- Ilianna Barbayianni
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Paraskevi Kanellopoulou
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Dionysios Fanidis
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Dimitris Nastos
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Eleftheria-Dimitra Ntouskou
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Apostolos Galaris
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Vaggelis Harokopos
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Pantelis Hatzis
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece
| | - Eliza Tsitoura
- Department of Respiratory Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Robert Homer
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
| | - Naftali Kaminski
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Katerina M Antoniou
- Department of Respiratory Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Bruno Crestani
- Department of Pulmonology, Bichat-Claude Bernard Hospital, Paris, France
| | - Argyrios Tzouvelekis
- Department of Respiratory Medicine, School of Medicine, University of Patras, Patras, Greece
| | - Vassilis Aidinis
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Athens, Greece.
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5
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Babu V, Bahari R, Laban N, Kulaga J, Abdul Z, Zakkar B, Al-Najjar A, Lesus J, Al-Rifai AAR, Sattar H, Irukulla S, Gunniya P, Requena T, Lysakowski A. RotaRod and acoustic startle reflex performance of two potential mouse models for Meniere's disease. Eur J Neurosci 2023; 58:2708-2723. [PMID: 37461313 DOI: 10.1111/ejn.16083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 06/11/2023] [Accepted: 06/17/2023] [Indexed: 08/04/2023]
Abstract
Meniere's disease (MD) is a disorder of the inner ear characterized by chronic episodes of vertigo, tinnitus, increased aural pressure, and sensorineural hearing loss. Causes of MD are unknown, but endolymphatic hydrops is a hallmark. In addition, 5%-15% of MD cases have been identified as familial. Whole-genome sequencing studies of individuals with familial MD identified DTNA and FAM136A as candidate genes for autosomal dominant inheritance of MD. Although the exact roles of these genes in MD are unknown, FAM136A encodes a mitochondrial protein, and DTNA encodes a cytoskeletal protein involved in synapse formation and maintenance, important for maintaining the blood-brain barrier. It is also associated with a particular aquaporin. We tested vestibular and auditory function in dtna and fam136a knockout (KO) mice, using RotaRod and startle reflex-based clicker tests, respectively. Three-factor analysis of variance (ANOVA) results indicated that sex, age, and genotype were significantly correlated with reduced mean latencies to fall ("latencies") for male dtna KO mice, while only age was a significant factor for fam136a KO mice. Fam136a KO mice lost their hearing months before WTs (9-11 months vs. 15-20 months). In male dtna KO mice, divergence in mean latencies compared with other genotypes was first evident at 4 months of age, with older males having an even greater decrease. Our results indicate that fam136a gene mutations generate hearing problems, while dtna gene mutations produce balance deficits. Both mouse models should help to elucidate hearing loss and balance-related symptoms associated with MD.
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Affiliation(s)
- Vidya Babu
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Rose Bahari
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Nora Laban
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Jacob Kulaga
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Zahid Abdul
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Basil Zakkar
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Ahmad Al-Najjar
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Joseph Lesus
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | | | - Heba Sattar
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Suhitha Irukulla
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Pranav Gunniya
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
| | - Teresa Requena
- Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Anna Lysakowski
- University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA
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Ali Khan A, Valera Vazquez G, Gustems M, Matteoni R, Song F, Gormanns P, Fessele S, Raess M, Hrabĕ de Angelis M. INFRAFRONTIER: mouse model resources for modelling human diseases. Mamm Genome 2023:10.1007/s00335-023-10010-7. [PMID: 37468728 PMCID: PMC10382402 DOI: 10.1007/s00335-023-10010-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/01/2023] [Indexed: 07/21/2023]
Abstract
Over the last decade, INFRAFRONTIER has positioned itself as a world-class Research Infrastructure for the generation, phenotyping, archiving, and distribution of mouse models in Europe. The INFRAFRONTIER network consists of 22 partners from 15 countries, and is continuously enhancing and broadening its portfolio of resources and services that are offered to the research community on a non-profit basis. By bringing together European rodent model expertise and providing valuable disease model services to the biomedical research community, INFRAFRONTIER strives to push the accessibility of cutting-edge human disease modelling technologies across the European research landscape. This article highlights the latest INFRAFRONTIER developments and informs the research community about its extensively utilised services, resources, and technical developments, specifically the intricacies of the INFRAFRONTIER database, use of Curated Disease Models, overview of the INFRAFRONTIER Cancer and Rare Disease resources, and information about its main state-of-the-art services.
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Affiliation(s)
| | | | | | - Rafaele Matteoni
- Institute of Biochemistry and Cell Biology, Italian National Research Council (CNR), Monterotondo, Rome, Italy
| | - Fei Song
- INFRAFRONTIER GmbH, Neuherberg, Germany
| | | | | | | | - Martin Hrabĕ de Angelis
- INFRAFRONTIER GmbH, Neuherberg, Germany
- Institute of Experimental Genetics, Helmholtz Zentrum München (HMGU-IEG), Neuherberg, Germany
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7
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Sieckmann T, Schley G, Ögel N, Kelterborn S, Boivin FJ, Fähling M, Ashraf MI, Reichel M, Vigolo E, Hartner A, Lichtenberger FB, Breiderhoff T, Knauf F, Rosenberger C, Aigner F, Schmidt-Ott K, Scholz H, Kirschner KM. Strikingly conserved gene expression changes of polyamine regulating enzymes among various forms of acute and chronic kidney injury. Kidney Int 2023; 104:90-107. [PMID: 37121432 DOI: 10.1016/j.kint.2023.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/24/2023] [Accepted: 04/10/2023] [Indexed: 05/02/2023]
Abstract
The polyamines spermidine and spermine and their common precursor molecule putrescine are involved in tissue injury and repair. Here, we test the hypothesis that impaired polyamine homeostasis contributes to various kidney pathologies in mice during experimental models of ischemia-reperfusion, transplantation, rhabdomyolysis, cyclosporine treatment, arterial hypertension, diabetes, unilateral ureteral obstruction, high oxalate feeding, and adenine-induced injuries. We found a remarkably similar pattern in most kidney pathologies with reduced expression of enzymes involved in polyamine synthesis together with increased expression of polyamine degrading enzymes. Transcript levels of amine oxidase copper-containing 1 (Aoc1), an enzyme which catalyzes the breakdown of putrescine, were barely detectable by in situ mRNA hybridization in healthy kidneys. Aoc1 was highly expressed upon various experimental kidney injuries resulting in a significant reduction of kidney putrescine content. Kidney levels of spermine were also significantly reduced, whereas spermidine was increased in response to ischemia-reperfusion injury. Increased Aoc1 expression in injured kidneys was mainly accounted for by an Aoc1 isoform that harbors 22 additional amino acids at its N-terminus and shows increased secretion. Mice with germline deletion of Aoc1 and injured kidneys showed no decrease of kidney putrescine content; although they displayed no overt phenotype, they had fewer tubular casts upon ischemia-reperfusion injury. Hyperosmotic stress stimulated AOC1 expression at the transcriptional and post-transcription levels in metanephric explants and kidney cell lines. AOC1 expression was also significantly enhanced after kidney transplantation in humans. These data demonstrate that the kidneys respond to various forms of injury with down-regulation of polyamine synthesis and activation of the polyamine breakdown pathway. Thus, an imbalance in kidney polyamines may contribute to various etiologies of kidney injury.
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Affiliation(s)
- Tobias Sieckmann
- Institute of Translational Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Gunnar Schley
- Department of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nürnberg (FAU), University Hospital Erlangen, Erlangen, Germany
| | - Neslihan Ögel
- Institute of Translational Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Simon Kelterborn
- Institute of Translational Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Felix J Boivin
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Molecular and Translational Kidney Research, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Michael Fähling
- Institute of Translational Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Muhammad I Ashraf
- Department of Surgery, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Martin Reichel
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Emilia Vigolo
- Molecular and Translational Kidney Research, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Andrea Hartner
- Department of Pediatrics and Adolescent Medicine, Friedrich-Alexander University Erlangen-Nürnberg (FAU), University Hospital Erlangen, Erlangen, Germany
| | - Falk-Bach Lichtenberger
- Institute of Translational Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Tilman Breiderhoff
- Department of Pediatrics, Division of Gastroenterology, Nephrology and Metabolic Diseases, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Felix Knauf
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Christian Rosenberger
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Felix Aigner
- Department of Surgery, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Department of Surgery, St. John of God Hospital Graz, Graz, Austria
| | - Kai Schmidt-Ott
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Molecular and Translational Kidney Research, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany; Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
| | - Holger Scholz
- Institute of Translational Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Karin M Kirschner
- Institute of Translational Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
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Totain E, Lindner L, Martin N, Misseri Y, Iché A, Birling MC, Sorg T, Herault Y, Bousquet-Melou A, Bouillé P, Duthoit C, Pavlovic G, Boullier S. Development of HPV16 mouse and dog models for more accurate prediction of human vaccine efficacy. Lab Anim Res 2023; 39:14. [PMID: 37308929 DOI: 10.1186/s42826-023-00166-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 05/22/2023] [Accepted: 06/02/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Animal models are essential to understand the physiopathology of human diseases but also to evaluate new therapies. However, for several diseases there is no appropriate animal model, which complicates the development of effective therapies. HPV infections, responsible for carcinoma cancers, are among these. So far, the lack of relevant animal models has hampered the development of therapeutic vaccines. In this study, we used a candidate therapeutic vaccine named C216, similar to the ProCervix candidate therapeutic vaccine, to validate new mouse and dog HPV preclinical models. ProCervix has shown promising results with classical subcutaneous murine TC-1 cell tumor isografts but has failed in a phase II study. RESULTS We first generated E7/HPV16 syngeneic transgenic mice in which the expression of the E7 antigen could be switched on through the use of Cre-lox recombination. Non-integrative LentiFlash® viral particles were used to locally deliver Cre mRNA, resulting in E7/HPV16 expression and GFP reporter fluorescence. The expression of E7/HPV16 was monitored by in vivo fluorescence using Cellvizio imaging and by local mRNA expression quantification. In the experimental conditions used, we observed no differences in E7 expression between C216 vaccinated and control groups. To mimic the MHC diversity of humans, E7/HPV16 transgenes were locally delivered by injection of lentiviral particles in the muscle of dogs. Vaccination with C216, tested with two different adjuvants, induced a strong immune response in dogs. However, we detected no relationship between the level of cellular response against E7/HPV16 and the elimination of E7-expressing cells, either by fluorescence or by RT-ddPCR analysis. CONCLUSIONS In this study, we have developed two animal models, with a genetic design that is easily transposable to different antigens, to validate the efficacy of candidate vaccines. Our results indicate that, despite being immunogenic, the C216 candidate vaccine did not induce a sufficiently strong immune response to eliminate infected cells. Our results are in line with the failure of the ProCervix vaccine that was observed at the end of the phase II clinical trial, reinforcing the relevance of appropriate animal models.
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Affiliation(s)
| | - Loïc Lindner
- CNRS, INSERM, CELPHEDIA, PHENOMIN-Institut Clinique de la Souris (ICS), Université de Strasbourg, 1 rue Laurent Fries, 67404, Illkirch Graffenstaden, France
| | - Nicolas Martin
- FlashTherapeutics, Centre de Recherche Langlade, 3 Avenue Hubert Curien, 31100, Toulouse, France
| | | | - Alexandra Iché
- FlashTherapeutics, Centre de Recherche Langlade, 3 Avenue Hubert Curien, 31100, Toulouse, France
| | - Marie-Christine Birling
- CNRS, INSERM, CELPHEDIA, PHENOMIN-Institut Clinique de la Souris (ICS), Université de Strasbourg, 1 rue Laurent Fries, 67404, Illkirch Graffenstaden, France
| | - Tania Sorg
- CNRS, INSERM, CELPHEDIA, PHENOMIN-Institut Clinique de la Souris (ICS), Université de Strasbourg, 1 rue Laurent Fries, 67404, Illkirch Graffenstaden, France
| | - Yann Herault
- CNRS, INSERM, CELPHEDIA, PHENOMIN-Institut Clinique de la Souris (ICS), Université de Strasbourg, 1 rue Laurent Fries, 67404, Illkirch Graffenstaden, France
- CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, 1 rue Laurent Fries, 67404, Illkirch Graffenstaden, France
| | | | - Pascale Bouillé
- FlashTherapeutics, Centre de Recherche Langlade, 3 Avenue Hubert Curien, 31100, Toulouse, France
| | - Christine Duthoit
- FlashTherapeutics, Centre de Recherche Langlade, 3 Avenue Hubert Curien, 31100, Toulouse, France
| | - Guillaume Pavlovic
- CNRS, INSERM, CELPHEDIA, PHENOMIN-Institut Clinique de la Souris (ICS), Université de Strasbourg, 1 rue Laurent Fries, 67404, Illkirch Graffenstaden, France
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9
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Paciello F, Zorzi V, Raspa M, Scavizzi F, Grassi C, Mammano F, Fetoni AR. Connexin 30 deletion exacerbates cochlear senescence and age-related hearing loss. Front Cell Dev Biol 2022; 10:950837. [PMID: 36016655 PMCID: PMC9395607 DOI: 10.3389/fcell.2022.950837] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Pathogenic mutations in the Gjb2 and Gjb6 genes, encoding connexin 26 (Cx26) and connexin 30 (Cx30), respectively, have been linked to the most frequent monogenic hearing impairment, nonsyndromic hearing loss, and deafness DFNB1. It is known that Cx26 plays an important role in auditory development, while the role of Cx30 in hearing remains controversial. Previous studies found that partial deletion of Cx26 can accelerate age-related hearing loss (ARHL), a multifactorial complex disorder, with both environmental and genetic factors contributing to the etiology of the disease. Here, we investigated the role of Cx30 in cochlear-aging processes using a transgenic mouse model with total deletion of Cx30 (Cx30 ΔΔ mice), in which Cx30 was removed without perturbing the surrounding sequences. We show that these mice are affected by exacerbated ARHL, with increased morphological cochlear damage, oxidative stress, inflammation, and vascular dysfunctions. Overall, our data demonstrate that Cx30 deletion can be considered a genetic risk factor for ARHL, making cochlear structures more susceptible to aging processes.
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Affiliation(s)
- Fabiola Paciello
- Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Veronica Zorzi
- CNR Institute of Biochemistry and Cell Biology, Monterotondo (RM), Italy
| | - Marcello Raspa
- CNR Institute of Biochemistry and Cell Biology, Monterotondo (RM), Italy
| | | | - Claudio Grassi
- Department of Neuroscience, Università Cattolica del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Fabio Mammano
- CNR Institute of Biochemistry and Cell Biology, Monterotondo (RM), Italy
- Department of Physics and Astronomy, University of Padova, Padova, Italy
- *Correspondence: Fabio Mammano, ; Anna Rita Fetoni,
| | - Anna Rita Fetoni
- Department of Otolaryngology Head and Neck Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Unit of Audiology, Department of Neuroscience, Reproductive Sciences and Dentistry, University of Naples Federico II, Naples, Italy
- *Correspondence: Fabio Mammano, ; Anna Rita Fetoni,
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10
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Bluemn T, Schmitz J, Zheng Y, Burns R, Zheng S, DeJong J, Christiansen L, Arnold O, Izaguirre-Carbonell J, Wang D, Deshpande AJ, Zhu N. Differential roles of BAF and PBAF subunits, Arid1b and Arid2, in MLL-AF9 leukemogenesis. Leukemia 2022; 36:946-955. [PMID: 35022500 PMCID: PMC10095935 DOI: 10.1038/s41375-021-01505-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 12/16/2021] [Accepted: 12/23/2021] [Indexed: 11/09/2022]
Abstract
The Switch/Sugar Non-Fermenting (SWI/SNF) nucleosome remodeling complexes play important roles in normal development and in the development of various cancers. Core subunits of the SWI/SNF complexes have been shown to have oncogenic roles in acute myeloid leukemia. However, the roles of the unique targeting subunits, including that of Arid2 and Arid1b, in AML leukemogenesis are not well understood. Here, we used conditional knockout mouse models to elucidate their role in MLL-AF9 leukemogenesis. We uncovered that Arid2 has dual roles; enhancing leukemogenesis when deleted during leukemia initiation and yet is required during leukemia maintenance. Whereas, deleting Arid1b in either phase promotes leukemogenesis. Our integrated analyses of transcriptomics and genomic binding data showed that, globally, Arid2 and Arid1b regulate largely distinct sets of genes at different disease stages, respectively, and in comparison, to each other. Amongst the most highly dysregulated transcription factors upon their loss, Arid2 and Arid1b converged on the regulation of Etv4/Etv5, albeit in an opposing manner while also regulating distinct TFs including Gata2,Tcf4, Six4, Irf4 and Hmgn3. Our data demonstrate the differential roles of SWI/SNF subunits in AML leukemogenesis and emphasize that cellular context and disease stage are key in determining their functions during this process.
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Affiliation(s)
- Theresa Bluemn
- Blood Research Institute, Versiti, Milwaukee, WI, USA
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Jesse Schmitz
- Blood Research Institute, Versiti, Milwaukee, WI, USA
| | - Yongwei Zheng
- Blood Research Institute, Versiti, Milwaukee, WI, USA
| | - Robert Burns
- Blood Research Institute, Versiti, Milwaukee, WI, USA
| | - Shikan Zheng
- Blood Research Institute, Versiti, Milwaukee, WI, USA
| | - Joshua DeJong
- Blood Research Institute, Versiti, Milwaukee, WI, USA
| | - Luke Christiansen
- Blood Research Institute, Versiti, Milwaukee, WI, USA
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Olivia Arnold
- Blood Research Institute, Versiti, Milwaukee, WI, USA
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Demin Wang
- Blood Research Institute, Versiti, Milwaukee, WI, USA
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Aniruddha J Deshpande
- Tumor Initiation and Maintenance Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Nan Zhu
- Blood Research Institute, Versiti, Milwaukee, WI, USA.
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA.
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11
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Gleeson D, Sethi D, Platte R, Burvill J, Barrett D, Akhtar S, Bruntraeger M, Bottomley J, Mouse Genetics Project S, Bussell J, Ryder E. High-throughput genotyping of high-homology mutant mouse strains by next-generation sequencing. Methods 2021; 191:78-86. [PMID: 33096238 PMCID: PMC8205115 DOI: 10.1016/j.ymeth.2020.10.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/25/2020] [Accepted: 10/18/2020] [Indexed: 11/05/2022] Open
Abstract
Genotyping of knockout alleles in mice is commonly performed by end-point PCR or gene-specific/universal cassette qPCR. Both have advantages and limitations in terms of assay design and interpretation of results. As an alternative method for high-throughput genotyping, we investigated next generation sequencing (NGS) of PCR amplicons, with a focus on CRISPR-mediated exon deletions where antibiotic selection markers are not present. By multiplexing the wild type and mutant-specific PCR reactions, the genotype can be called by the relative sequence counts of each product. The system is highly scalable and can be applied to a variety of different allele types, including those produced by the International Mouse Phenotyping Consortium and associated projects. One potential challenge with any assay design is locating unique areas of the genome, especially when working with gene families or regions of high homology. These can result in misleading or ambiguous genotypes for either qPCR or end-point assays. Here, we show that genotyping by NGS can negate these issues by simple, automated filtering of undesired sequences. Analysis and genotype calls can also be fully automated, using FASTQ or FASTA input files and an in-house Perl script and SQL database.
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Affiliation(s)
- Diane Gleeson
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Debarati Sethi
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Radka Platte
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Jonathan Burvill
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Daniel Barrett
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Shaheen Akhtar
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Michaela Bruntraeger
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Joanna Bottomley
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | | | - James Bussell
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Edward Ryder
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK.
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12
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Moris N, Alev C, Pera M, Martinez Arias A. Biomedical and societal impacts of in vitro embryo models of mammalian development. Stem Cell Reports 2021; 16:1021-1030. [PMID: 33979591 PMCID: PMC8185435 DOI: 10.1016/j.stemcr.2021.03.023] [Citation(s) in RCA: 7] [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: 11/16/2020] [Revised: 03/19/2021] [Accepted: 03/19/2021] [Indexed: 12/30/2022] Open
Abstract
In recent years, a diverse array of in vitro cell-derived models of mammalian development have been described that hold immense potential for exploring fundamental questions in developmental biology, particularly in the case of the human embryo where ethical and technical limitations restrict research. These models open up new avenues toward biomedical advances in in vitro fertilization, clinical research, and drug screening with potential to impact wider society across many diverse fields. These technologies raise challenging questions with profound ethical, regulatory, and social implications that deserve due consideration. Here, we discuss the potential impacts of embryo-like models, and their biomedical potential and current limitations.
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Affiliation(s)
- Naomi Moris
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK.
| | - Cantas Alev
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto 606-8510, Japan.
| | - Martin Pera
- The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04609, USA
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13
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Lassi M, Tomar A, Comas-Armangué G, Vogtmann R, Dijkstra DJ, Corujo D, Gerlini R, Darr J, Scheid F, Rozman J, Aguilar-Pimentel A, Koren O, Buschbeck M, Fuchs H, Marschall S, Gailus-Durner V, Hrabe de Angelis M, Plösch T, Gellhaus A, Teperino R. Disruption of paternal circadian rhythm affects metabolic health in male offspring via nongerm cell factors. SCIENCE ADVANCES 2021; 7:7/22/eabg6424. [PMID: 34039610 PMCID: PMC8153725 DOI: 10.1126/sciadv.abg6424] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
Circadian rhythm synchronizes each body function with the environment and regulates physiology. Disruption of normal circadian rhythm alters organismal physiology and increases disease risk. Recent epidemiological data and studies in model organisms have shown that maternal circadian disruption is important for offspring health and adult phenotypes. Less is known about the role of paternal circadian rhythm for offspring health. Here, we disrupted circadian rhythm in male mice by night-restricted feeding and showed that paternal circadian disruption at conception is important for offspring feeding behavior, metabolic health, and oscillatory transcription. Mechanistically, our data suggest that the effect of paternal circadian disruption is not transferred to the offspring via the germ cells but initiated by corticosterone-based parental communication at conception and programmed during in utero development through a state of fetal growth restriction. These findings indicate paternal circadian health at conception as a newly identified determinant of offspring phenotypes.
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Affiliation(s)
- Maximilian Lassi
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
| | - Archana Tomar
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
| | - Gemma Comas-Armangué
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
| | - Rebekka Vogtmann
- Department of Gynecology and Obstetrics-University Hospital Essen - Essen, Germany
| | - Dorieke J Dijkstra
- University of Groningen, University Medical Center Groningen, Department of Obstetrics and Gynecology, Groningen, Netherlands
| | - David Corujo
- Cancer and Leukemia Epigenetics and Biology Program, Josep Carreras Institute for Leukemia Research (IJC) Badalona, Spain
| | - Raffaele Gerlini
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
| | - Jonatan Darr
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
| | - Fabienne Scheid
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
| | - Jan Rozman
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50, Vestec, Czech Republic
| | - Antonio Aguilar-Pimentel
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
| | - Omry Koren
- Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel
| | - Marcus Buschbeck
- Cancer and Leukemia Epigenetics and Biology Program, Josep Carreras Institute for Leukemia Research (IJC) Badalona, Spain
- Program for Predictive and Personalized Medicine of Cancer, Germans Trias i Pujol Research Institute (PMPPC-IGTP), 08916 Badalona, Spain
| | - Helmut Fuchs
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
| | - Susan Marschall
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
| | - Valerie Gailus-Durner
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
| | - Martin Hrabe de Angelis
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- German Center for Diabetes Research (DZD) Neuherberg, Germany
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany
- Chair of Experimental Genetics, School of Life Science Weihenstephan, Technische Universität München Freising, Germany
| | - Torsten Plösch
- University of Groningen, University Medical Center Groningen, Department of Obstetrics and Gynecology, Groningen, Netherlands
| | - Alexandra Gellhaus
- Department of Gynecology and Obstetrics-University Hospital Essen - Essen, Germany
| | - Raffaele Teperino
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg, Germany.
- German Center for Diabetes Research (DZD) Neuherberg, Germany
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14
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Bluemn T, Schmitz J, Chen Y, Zheng Y, Zhang Y, Zheng S, Burns R, DeJong J, Christiansen L, Izaguirre-Carbonell J, Wang D, Zhu N. Arid2 regulates hematopoietic stem cell differentiation in normal hematopoiesis. Exp Hematol 2021; 94:37-46. [PMID: 33346030 PMCID: PMC10041880 DOI: 10.1016/j.exphem.2020.12.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 12/11/2020] [Accepted: 12/13/2020] [Indexed: 01/25/2023]
Abstract
The switch/sugar nonfermenting (SWI/SNF) family of chromatin remodeling complexes have been implicated in normal hematopoiesis. The ARID2 protein is a component of the polybromo-associated BAF (PBAF), one of the two main SWI/SNF complexes. In the current study, we used a conditional Arid2 knockout mouse model to determine its role in normal hematopoiesis. We found that the loss of Arid2 has no discernable effects on steady-state hematopoiesis, with the exception of a modest effect on erythropoiesis. On bone marrow transplantation, however, the loss of Arid2 affects HSC differentiation in a cell-autonomous manner, resulting in significant decreases in the ability to reconstitute the lymphoid lineage. Gene expression analysis of Arid2 knockout cells revealed enrichment of myeloid-biased multipotent progenitor (MPP) cell signatures, while the lymphoid-biased MPPs are enriched in the wild type, consistent with the observed phenotype. Moreover, Arid2 knockout cells revealed enrichment of inflammatory pathways with upregulation of TLR receptors, as well as downstream signaling cascade genes. Furthermore, under lymphocyte-biased growth conditions in vitro, Arid2 null bone marrow cells have significantly impaired proliferation, which decreased further on lipopolysaccharide stimulation. Overall, these data suggest that the loss of Arid2 impairs HSC differentiation ability, and this effect may be mediated through upregulation of inflammatory pathways.
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Affiliation(s)
- Theresa Bluemn
- Blood Research Institute, Versiti, Milwaukee, WI; Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI
| | | | - Yuhong Chen
- Blood Research Institute, Versiti, Milwaukee, WI
| | | | | | - Shikan Zheng
- Blood Research Institute, Versiti, Milwaukee, WI
| | - Robert Burns
- Blood Research Institute, Versiti, Milwaukee, WI
| | | | - Luke Christiansen
- Blood Research Institute, Versiti, Milwaukee, WI; Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI
| | | | - Demin Wang
- Blood Research Institute, Versiti, Milwaukee, WI; Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI
| | - Nan Zhu
- Blood Research Institute, Versiti, Milwaukee, WI; Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI.
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15
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Dorsch M, Wittur I, Garrels W. Efficiency of timed pregnancies in C57BL/6 and BALB/c mice by mating one male with up to four females. Lab Anim 2020; 54:23677219897687. [PMID: 32046590 DOI: 10.1177/0023677219897687] [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] [Indexed: 02/28/2024]
Abstract
For a wide range of biomedical approaches, an accurate estimate of the age of embryos or pups is important. Overnight mating is the method that is mostly used to establish timed pregnancies. The oestrus cycle in mice repeats every four to five days. So, not all females will get pregnant because they are not in oestrus. Therefore, the aim of this study was to analyse whether polygamous mating could increase the rate of timed pregnancies per breeding cage and female. We compared overnight timed mating regimes with up to four females per male, using C57BL/6 and BALB/c mice as well as F1 hybrids of these two strains. The number of vaginal plugs, number of females that gave birth and weaned litter (including size and weaning weight) were recorded. Our results showed that the plug and pregnancy rate decreased, but the productivity per breeding cage increased for polygamous mating regimes. The proportion of females with vaginal plugs and females that gave birth was significantly higher in monogamous mating. The proportion of plugged females that gave birth, as well as litter size and weaning weight, were not influenced by the mating regime. After analysing 513 breeding cages with a total of 1090 females, we found that polygamous mating with up to three females per male can increase the number of timed pregnancies. However, in the mating regime with more than three females, the rate of timed pregnancy as well as number of pups per female declined.
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Affiliation(s)
- Martina Dorsch
- Institute for Laboratory Animal Science, Hannover Medical School, Germany
| | - Isabell Wittur
- Institute for Laboratory Animal Science, Hannover Medical School, Germany
| | - Wiebke Garrels
- Institute for Laboratory Animal Science, Hannover Medical School, Germany
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16
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Meagan Littrell O, Stoeger C, Maier H, Fuchs H, Hrabě de Angelis M, Cassis LA, Gerhardt GA, Grondin R, Gailus-Durner V. Costs of Implementing Quality in Research Practice. Handb Exp Pharmacol 2019; 257:399-423. [PMID: 31541322 DOI: 10.1007/164_2019_294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Using standardized guidelines in preclinical research has received increased interest in light of recent concerns about transparency in data reporting and apparent variation in data quality, as evidenced by irreproducibility of results. Although the costs associated with supporting quality through a quality management system are often obvious line items in laboratory budgets, the treatment of the costs associated with quality failure is often overlooked and difficult to quantify. Thus, general estimations of quality costs can be misleading and inaccurate, effectively undervaluing costs recovered by reducing quality defects. Here, we provide examples of quality costs in preclinical research and describe how we have addressed misconceptions of quality management implementation as only marginally beneficial and/or unduly burdensome. We provide two examples of implementing a quality management system (QMS) in preclinical experimental (animal) research environments - one in Europe, the German Mouse Clinic, having established ISO 9001 and the other in the United States, the University of Kentucky (UK), having established Good Laboratory Practice-compliant infrastructure. We present a summary of benefits to having an effective QMS, as may be useful in guiding discussions with funders or administrators to promote interest and investment in a QMS, which ultimately supports shared, mutually beneficial outcomes.
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Affiliation(s)
- O Meagan Littrell
- University of Kentucky Good Research Practice Resource Center and Department of Neuroscience, Lexington, KY, USA
| | - Claudia Stoeger
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Holger Maier
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Helmut Fuchs
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Martin Hrabě de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Experimental Genetics, School of Life Science Weihenstephan, Technische Universität München, Freising, Germany.,German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Lisa A Cassis
- University of Kentucky Office of the Vice President for Research and Department of Pharmacology and Nutritional Sciences, Lexington, KY, USA
| | - Greg A Gerhardt
- University of Kentucky Good Research Practice Resource Center and Department of Neuroscience, Lexington, KY, USA
| | - Richard Grondin
- University of Kentucky Good Research Practice Resource Center and Department of Neuroscience, Lexington, KY, USA
| | - Valérie Gailus-Durner
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.
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17
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Guth BD, Grobler AF, Frazier KS, Greiter-Wilke A, Herzyk D, Hough TA, Khan AA, Markert M, Smith JD, Svenson KL, Wells S, Pugsley MK. Drug safety Africa: An overview of safety pharmacology & toxicology in South Africa. J Pharmacol Toxicol Methods 2019; 98:106579. [PMID: 31085319 DOI: 10.1016/j.vascn.2019.106579] [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] [Received: 03/12/2019] [Revised: 04/25/2019] [Accepted: 05/01/2019] [Indexed: 12/22/2022]
Abstract
This meeting report is based on presentations given at the first Drug Safety Africa Meeting in Potchefstroom, South Africa from November 20-22, 2018 at the North-West University campus. There were 134 attendees (including 26 speakers and 34 students) from the pharmaceutical industry, academia, regulatory agencies as well as 6 exhibitors. These meeting proceedings are designed to inform the content that was presented in terms of Safety Pharmacology (SP) and Toxicology methods and models that are used by the pharmaceutical industry to characterize the safety profile of novel small chemical or biological molecules. The first part of this report includes an overview of the core battery studies defined by cardiovascular, central nervous system (CNS) and respiratory studies. Approaches to evaluating drug effects on the renal and gastrointestinal systems and murine phenotyping were also discussed. Subsequently, toxicological approaches were presented including standard strategies and options for early identification and characterization of risks associated with a novel therapeutic, the types of toxicology studies conducted and relevance to risk assessment supporting first-in-human (FIH) clinical trials and target organ toxicity. Biopharmaceutical development and principles of immunotoxicology were discussed as well as emerging technologies. An additional poster session was held that included 18 posters on advanced studies and topics by South African researchers, postgraduate students and postdoctoral fellows.
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Affiliation(s)
- Brian D Guth
- Boehringer Ingelheim GmbH & Co KG, Biberach an der Riss, Germany; North-West University, Potchefstroom, South Africa.
| | | | | | | | - Danuta Herzyk
- Merck Sharp & Dohme Corp., A subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA
| | - Tertius A Hough
- Mary Lyon Centre and Mammalian Genetics Unit, Medical Research Council, Harwell, UK
| | | | - Michael Markert
- Boehringer Ingelheim GmbH & Co KG, Biberach an der Riss, Germany
| | - James D Smith
- Boehringer-Ingelheim Pharmaceuticals Inc., Ridgefield, CT, USA
| | | | - Sara Wells
- Mary Lyon Centre and Mammalian Genetics Unit, Medical Research Council, Harwell, UK
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18
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Yoshimoto H, Takeo T, Nakagata N. Dimethyl sulfoxide and quercetin prolong the survival, motility, and fertility of cold-stored mouse sperm for 10 days. Biol Reprod 2019; 97:883-891. [PMID: 29126179 PMCID: PMC5803767 DOI: 10.1093/biolre/iox144] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 11/07/2017] [Indexed: 12/15/2022] Open
Abstract
Technology for preserving sperm is useful for disseminating valuable male genetic traits. Cold storage is suitable for easily transporting sperm as an alternative to the shipment of live animals. However, there is a technical limitation in that the fertility of cold-stored sperm declines within 3 days. To overcome this problem, we examined the protective effects of quercetin and dimethyl sulfoxide (DMSO). DMSO and quercetin maintained the fertility and motility of cold-stored sperm for 10 days. In addition, quercetin attenuated the reduction of mitochondrial membrane potential of cold-stored sperm during sperm preincubation, allowing the induction of capacitation, and it localized to the midpiece of sperm. Furthermore, DMSO and quercetin enhanced the level of tyrosine phosphorylation of cold-stored sperm. DMSO and quercetin have life-prolonging effects on sperm during cold storage. Cold storage using DMSO and quercetin will provide a robust system for internationally transporting valuable sperm samples.
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Affiliation(s)
- Hidetaka Yoshimoto
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, Kumamoto, Japan
| | - Toru Takeo
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, Kumamoto, Japan
| | - Naomi Nakagata
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, Kumamoto, Japan
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Fetoni AR, Zorzi V, Paciello F, Ziraldo G, Peres C, Raspa M, Scavizzi F, Salvatore AM, Crispino G, Tognola G, Gentile G, Spampinato AG, Cuccaro D, Guarnaccia M, Morello G, Van Camp G, Fransen E, Brumat M, Girotto G, Paludetti G, Gasparini P, Cavallaro S, Mammano F. Cx26 partial loss causes accelerated presbycusis by redox imbalance and dysregulation of Nfr2 pathway. Redox Biol 2018; 19:301-317. [PMID: 30199819 PMCID: PMC6129666 DOI: 10.1016/j.redox.2018.08.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/26/2018] [Accepted: 08/05/2018] [Indexed: 11/29/2022] Open
Abstract
Mutations in GJB2, the gene that encodes connexin 26 (Cx26), are the most common cause of sensorineural hearing impairment. The truncating variant 35delG, which determines a complete loss of Cx26 protein function, is the prevalent GJB2 mutation in several populations. Here, we generated and analyzed Gjb2+/- mice as a model of heterozygous human carriers of 35delG. Compared to control mice, auditory brainstem responses (ABRs) and distortion product otoacoustic emissions (DPOAEs) worsened over time more rapidly in Gjb2+/- mice, indicating they were affected by accelerated age-related hearing loss (ARHL), or presbycusis. We linked causally the auditory phenotype of Gjb2+/- mice to apoptosis and oxidative damage in the cochlear duct, reduced release of glutathione from connexin hemichannels, decreased nutrient delivery to the sensory epithelium via cochlear gap junctions and deregulated expression of genes that are under transcriptional control of the nuclear factor erythroid 2-related factor 2 (Nrf2), a pivotal regulator of tolerance to redox stress. Moreover, a statistically significant genome-wide association with two genes (PRKCE and TGFB1) related to the Nrf2 pathway (p-value < 4 × 10-2) was detected in a very large cohort of 4091 individuals, originating from Europe, Caucasus and Central Asia, with hearing phenotype (including 1076 presbycusis patients and 1290 healthy matched controls). We conclude that (i) elements of the Nrf2 pathway are essential for hearing maintenance and (ii) their dysfunction may play an important role in the etiopathogenesis of human presbycusis.
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Affiliation(s)
- Anna Rita Fetoni
- CNR Institute of Cell Biology and Neurobiology, Monterotondo 00015, Italy; Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy; Institute of Otolaryngology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo F. Vito 1, 00168 Rome, Italy
| | - Veronica Zorzi
- CNR Institute of Cell Biology and Neurobiology, Monterotondo 00015, Italy; Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - Fabiola Paciello
- CNR Institute of Cell Biology and Neurobiology, Monterotondo 00015, Italy; Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - Gaia Ziraldo
- CNR Institute of Cell Biology and Neurobiology, Monterotondo 00015, Italy; Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - Chiara Peres
- CNR Institute of Cell Biology and Neurobiology, Monterotondo 00015, Italy
| | - Marcello Raspa
- CNR Institute of Cell Biology and Neurobiology, Monterotondo 00015, Italy
| | | | | | - Giulia Crispino
- CNR Institute of Cell Biology and Neurobiology, Monterotondo 00015, Italy
| | - Gabriella Tognola
- CNR Institute of Electronics, Computer and Telecommunication Engineering, 20133 Milano, Italy
| | - Giulia Gentile
- CNR Institute of Neurological Sciences, 95126 Catania, Italy
| | | | - Denis Cuccaro
- CNR Institute of Neurological Sciences, 95126 Catania, Italy
| | | | | | - Guy Van Camp
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Erik Fransen
- Department of Biomedical Sciences, University of Antwerp, 2650 Antwerp, Belgium
| | - Marco Brumat
- Dept Med Surg & Hlth Sci, University of Trieste, Trieste, Italy; IRCCS Burlo Garofolo, Inst Maternal & Child Hlth, Trieste, Italy
| | - Giorgia Girotto
- Dept Med Surg & Hlth Sci, University of Trieste, Trieste, Italy; IRCCS Burlo Garofolo, Inst Maternal & Child Hlth, Trieste, Italy
| | - Gaetano Paludetti
- Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy; Institute of Otolaryngology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo F. Vito 1, 00168 Rome, Italy
| | - Paolo Gasparini
- Dept Med Surg & Hlth Sci, University of Trieste, Trieste, Italy; IRCCS Burlo Garofolo, Inst Maternal & Child Hlth, Trieste, Italy.
| | | | - Fabio Mammano
- CNR Institute of Cell Biology and Neurobiology, Monterotondo 00015, Italy; University of Padova, Department of Physics and Astronomy "G. Galilei", Padova, Italy.
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20
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Raspa M, Fray M, Paoletti R, Montoliu L, Giuliani A, Scavizzi F. A new, simple and efficient liquid nitrogen free method to cryopreserve mouse spermatozoa at -80 °C. Theriogenology 2018; 119:52-59. [PMID: 29982136 DOI: 10.1016/j.theriogenology.2018.06.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 05/28/2018] [Accepted: 06/24/2018] [Indexed: 11/26/2022]
Abstract
The mouse is widely used for biomedical research and an increasing number of genetically altered models are currently generated, therefore centralized repositories are essentials to secure the important mouse strains that have been developed. We have previously reported that spermatozoa of wild type and mutant strains frozen using standard laboratory protocols can be transported in dry ice (-79 °C) for 7 days and safely stored in a -80 °C freezer for up to two years. The objective of this new study was to compare the effects of the freezing techniques using LN2 or -80 °C freezer on fertility of frozen-thawed mouse spermatozoa. After thawing, sperm fertility was comparable (P > 0,05) between the LN2 and the -80 °C samples for at least 1 year. Furthermore, we showed that it is possible to freeze and store mouse semen directly at -80 °C and eventually transfer it to LN2 irrespective of storage time. This study is relevant because it shows for the first time that mouse spermatozoa can be efficiently frozen and stored at -80 °C with no use of liquid nitrogen for a long period of time. A new, simple, efficient and flexible, liquid nitrogen free, method was developed for freezing and maintaining spermatozoa of wild type and mutant C57BL/6N lines. Lines on this genetic background are used in collaborative research infrastructures for systematic phenotyping, e.g. the International Mouse Phenotyping Consortium (IMPC) and therefore largely cryopreserved in repositories like EMMA/Infrafrontier. The importance of this finding will be especially useful for small laboratories with no or limited access to liquid nitrogen and for laboratories generating many mouse mutant lines by CRISPR/Cas9 who do not want to saturate the limited space of a LN2 tank, using a more accessible -80 °C freezer. This study underlines, once more, that mouse spermatozoa are very resistant and can be frozen, transported, shared and stored at -80 °C for a long time without a significant loss of viability. This new approach simplifies the freezing process and facilitates the long term storage of mouse spermatozoa at -80 °C, always allowing the transfer to LN2 for indefinite storage without noticeable detrimental effects.
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Affiliation(s)
- Marcello Raspa
- National Research Council (IBCN), CNR-Campus International Development (EMMA-INFRAFRONTIER-IMPC), Monterotondo Scalo, Rome, Italy
| | - Martin Fray
- Mary Lyon Centre, MRC Harwell Institute, Harwell Campus, Oxfordshire, OX11 0RD, United Kingdom
| | | | - Lluis Montoliu
- National Centre for Biotechnology (CNB-CSIC), Department of Molecular and Cellular Biology, Campus de Cantoblanco, Darwin 3, 28049, Madrid, Spain; CIBERER-ISCIII, Madrid, Spain
| | | | | | - Ferdinando Scavizzi
- National Research Council (IBCN), CNR-Campus International Development (EMMA-INFRAFRONTIER-IMPC), Monterotondo Scalo, Rome, Italy.
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21
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Long term maintenance of frozen mouse spermatozoa at −80 °C. Theriogenology 2018; 107:41-49. [DOI: 10.1016/j.theriogenology.2017.10.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 01/31/2023]
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22
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Raspa M, Guan M, Paoletti R, Montoliu L, Ayadi A, Marschall S, Fray M, Scavizzi F. Dry ice is a reliable substrate for the distribution of frozen mouse spermatozoa: A multi-centric study. Theriogenology 2017; 96:49-57. [DOI: 10.1016/j.theriogenology.2017.04.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/15/2017] [Accepted: 04/01/2017] [Indexed: 01/27/2023]
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