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Součková K, Jasík M, Sovadinová I, Sember A, Sychrová E, Konieczna A, Bystrý V, Dyková I, Blažek R, Lukšíková K, Pavlica T, Jankásek M, Altmanová M, Žák J, Zbončáková A, Reichard M, Slabý O. From fish to cells: Establishment of continuous cell lines from embryos of annual killifish Nothobranchius furzeri and N. kadleci. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 259:106517. [PMID: 37087860 DOI: 10.1016/j.aquatox.2023.106517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 05/03/2023]
Abstract
There is a growing need of alternative experimental models that avoid or minimize the use of animals due to ethical, economical, and scientific reasons. Surprisingly, the stable embryonic cell lines representing Nothobranchius spp., emerging vertebrate models in aging research, regenerative medicine, ecotoxicology, or genomics, have been not derived so far. This paper reports establishment and deep characterization of ten continuous cell lines from annual killifish embryos of N. furzeri and N. kadleci. The established cell lines exhibited mostly fibroblast- and epithelial-like morphology and steady growth rates with cell doubling time ranging from 27 to 40 h. All cell lines retained very similar characteristics even after continuous subcultivation (more than 100 passages) and extended storage in liquid nitrogen (∼3 years). The cytogenetic analysis of the cell lines revealed a diploid chromosome number mostly equal to 38 elements (i.e., the native chromosome count for both killifish species), with minor but diverse line/passage-specific karyotype changes compared to the patterns observed in non-cultured N. furzeri and N. kadleci somatic cells. Based on transcriptional analysis of marker genes, the cell lines displayed features of an undifferentiated state without signs of senescence even in advanced passages. We confirmed that the cell lines are transfectable and can form viable 3-D spheroids. The applicability of the cell lines for (eco)toxicological surveys was confirmed by assessing the effect of cytotoxic and growth inhibitory agents. Properties of established Nothobranchius embryonic cell lines open new possibilities for the application of this model in various fields of life sciences including molecular mechanisms of aging, karyotype (in)stability or differences in lifespan.
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Affiliation(s)
- Kamila Součková
- Ondřej Slabý Group, Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic.
| | - Matej Jasík
- Ondřej Slabý Group, Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
| | - Iva Sovadinová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno 602 00, Czech Republic
| | - Alexandr Sember
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov 277 21, Czech Republic
| | - Eliška Sychrová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno 602 00, Czech Republic
| | - Anna Konieczna
- Ondřej Slabý Group, Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
| | - Vojtěch Bystrý
- Ondřej Slabý Group, Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
| | - Iva Dyková
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno 611 37, Czech Republic
| | - Radim Blažek
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno 611 37, Czech Republic; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno 603 00, Czech Republic
| | - Karolína Lukšíková
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov 277 21, Czech Republic; Department of Genetics and Microbiology, Faculty of Science, Charles University, Prague 128 44, Czech Republic
| | - Tomáš Pavlica
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov 277 21, Czech Republic; Department of Zoology, Faculty of Science, Charles University, Prague 128 44, Czech Republic
| | - Marek Jankásek
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov 277 21, Czech Republic; Department of Zoology, Faculty of Science, Charles University, Prague 128 44, Czech Republic
| | - Marie Altmanová
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov 277 21, Czech Republic; Department of Ecology, Faculty of Science, Charles University, Prague 128 44, Czech Republic
| | - Jakub Žák
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno 611 37, Czech Republic; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno 603 00, Czech Republic
| | - Adriana Zbončáková
- Ondřej Slabý Group, Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
| | - Martin Reichard
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno 611 37, Czech Republic; Institute of Vertebrate Biology, Czech Academy of Sciences, Brno 603 00, Czech Republic; Department of Ecology and Vertebrate Zoology, University of Łódź, Łódź 90-237, Poland
| | - Ondřej Slabý
- Ondřej Slabý Group, Molecular Medicine, Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic; Department of Biology, Faculty of Medicine, Masaryk University, Brno 625 00, Czech Republic
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2
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McKay A, Costa EK, Chen J, Hu CK, Chen X, Bedbrook CN, Khondker RC, Thielvoldt M, Priya Singh P, Wyss-Coray T, Brunet A. An automated feeding system for the African killifish reveals the impact of diet on lifespan and allows scalable assessment of associative learning. eLife 2022; 11:e69008. [PMID: 36354233 PMCID: PMC9788828 DOI: 10.7554/elife.69008] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 11/09/2022] [Indexed: 11/11/2022] Open
Abstract
The African turquoise killifish is an exciting new vertebrate model for aging studies. A significant challenge for any model organism is the control over its diet in space and time. To address this challenge, we created an automated and networked fish feeding system. Our automated feeder is designed to be open-source, easily transferable, and built from widely available components. Compared to manual feeding, our automated system is highly precise and flexible. As a proof of concept for the feeding flexibility of these automated feeders, we define a favorable regimen for growth and fertility for the African killifish and a dietary restriction regimen where both feeding time and quantity are reduced. We show that this dietary restriction regimen extends lifespan in males (but not in females) and impacts the transcriptomes of killifish livers in a sex-specific manner. Moreover, combining our automated feeding system with a video camera, we establish a quantitative associative learning assay to provide an integrative measure of cognitive performance for the killifish. The ability to precisely control food delivery in the killifish opens new areas to assess lifespan and cognitive behavior dynamics and to screen for dietary interventions and drugs in a scalable manner previously impossible with traditional vertebrate model organisms.
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Affiliation(s)
- Andrew McKay
- Department of Genetics, Stanford UniversityStanfordUnited States
- Biology Graduate Program, Stanford UniversityStanfordUnited States
| | - Emma K Costa
- Department of Neurology and Neurological Sciences, Stanford UniversityStanfordUnited States
- Neurosciences Interdepartmental Program, Stanford University School of MedicineStanfordUnited States
| | - Jingxun Chen
- Department of Genetics, Stanford UniversityStanfordUnited States
| | - Chi-Kuo Hu
- Department of Genetics, Stanford UniversityStanfordUnited States
| | - Xiaoshan Chen
- Department of Genetics, Stanford UniversityStanfordUnited States
| | - Claire N Bedbrook
- Department of Genetics, Stanford UniversityStanfordUnited States
- Department of Bioengineering, Stanford UniversityStanfordUnited States
| | | | | | | | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford UniversityStanfordUnited States
- Glenn Laboratories for the Biology of Aging, Stanford UniversityStanfordUnited States
- Wu Tsai Neurosciences Institute, Stanford UniversityStanfordUnited States
| | - Anne Brunet
- Department of Genetics, Stanford UniversityStanfordUnited States
- Glenn Laboratories for the Biology of Aging, Stanford UniversityStanfordUnited States
- Wu Tsai Neurosciences Institute, Stanford UniversityStanfordUnited States
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3
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Žák J, Roy K, Dyková I, Mráz J, Reichard M. Starter feed for carnivorous species as a practical replacement of bloodworms for a vertebrate model organism in ageing, the turquoise killifish Nothobranchius furzeri. JOURNAL OF FISH BIOLOGY 2022; 100:894-908. [PMID: 35195903 DOI: 10.1111/jfb.15021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/20/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
The absence of a controlled diet is unfortunate in a promising model organism for ageing, the turquoise killifish (Nothobranchius furzeri Jubb, 1971). Currently captive N. furzeri are fed bloodworms but it is not known whether this is an optimal diet. Replacing bloodworms with a practical dry feed would reduce diet variability. In the present study, we estimated the nutritional value of the diet ingested by wild fish and determined the fish-body amino acid profile as a proxy for their nutritional requirements. We compared the performance of fish fed four commercial feeds containing 46%-64% protein to that achieved with bloodworms and that of wild fish. Wild fish target a high-protein (60%) diet and this is supported by their superior performance on high-protein diets in captivity. In contrast, feeds for omnivores led to slower growth, lower fecundity and unnatural liver size. In comparison to wild fish, a bloodworm diet led to lower body condition, overfeeding and male liver enlargement. Out of the four dry feeds tested, the fish fed Aller matched wild fish in body condition and liver size, and was comparable to bloodworms in terms of growth and fecundity. A starter feed for carnivorous species appears to be a practical replacement for bloodworms for N. furzeri. The use of dry feeds improved performance in comparison to bloodworms and thus may contribute to reducing response variability and improving research reproducibility in N. furzeri research.
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Affiliation(s)
- Jakub Žák
- Institute of Vertebrate Biology, Czech Academy of Science, Brno, Czech Republic
- Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Koushik Roy
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Ceske Budejovice, Czech Republic
| | - Iva Dyková
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jan Mráz
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Ceske Budejovice, Czech Republic
| | - Martin Reichard
- Institute of Vertebrate Biology, Czech Academy of Science, Brno, Czech Republic
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Protection, University of Łódź, Łódź, Poland
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Borgonovo J, Ahumada-Galleguillos P, Oñate-Ponce A, Allende-Castro C, Henny P, Concha ML. Organization of the Catecholaminergic System in the Short-Lived Fish Nothobranchius furzeri. Front Neuroanat 2021; 15:728720. [PMID: 34588961 PMCID: PMC8473916 DOI: 10.3389/fnana.2021.728720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/13/2021] [Indexed: 12/02/2022] Open
Abstract
The catecholaminergic system has received much attention based on its regulatory role in a wide range of brain functions and its relevance in aging and neurodegenerative diseases. In the present study, we analyzed the neuroanatomical distribution of catecholaminergic neurons based on tyrosine hydroxylase (TH) immunoreactivity in the brain of adult Nothobranchius furzeri. In the telencephalon, numerous TH+ neurons were observed in the olfactory bulbs and the ventral telencephalic area, arranged as strips extending through the rostrocaudal axis. We found the largest TH+ groups in the diencephalon at the preoptic region level, the ventral thalamus, the pretectal region, the posterior tuberculum, and the caudal hypothalamus. In the dorsal mesencephalic tegmentum, we identified a particular catecholaminergic group. The rostral rhombencephalon housed TH+ cells in the locus coeruleus and the medulla oblongata, distributing in a region dorsal to the inferior reticular formation, the vagal lobe, and the area postrema. Finally, scattered TH+ neurons were present in the ventral spinal cord and the retina. From a comparative perspective, the overall organization of catecholaminergic neurons is consistent with the general pattern reported for other teleosts. However, N. furzeri shows some particular features, including the presence of catecholaminergic cells in the midbrain. This work provides a detailed neuroanatomical map of the catecholaminergic system of N. furzeri, a powerful aging model, also contributing to the phylogenetic understanding of one of the most ancient neurochemical systems.
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Affiliation(s)
- Janina Borgonovo
- Laboratory of Experimental Ontogeny, Faculty of Medicine, Institute of Biomedical Sciences, Universidad de Chile, Santiago, Chile.,Biomedical Neuroscience Institute, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - Patricio Ahumada-Galleguillos
- Laboratory of Experimental Ontogeny, Faculty of Medicine, Institute of Biomedical Sciences, Universidad de Chile, Santiago, Chile.,Biomedical Neuroscience Institute, Santiago, Chile
| | - Alejandro Oñate-Ponce
- Laboratory of Experimental Ontogeny, Faculty of Medicine, Institute of Biomedical Sciences, Universidad de Chile, Santiago, Chile.,Biomedical Neuroscience Institute, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - Camilo Allende-Castro
- Laboratory of Experimental Ontogeny, Faculty of Medicine, Institute of Biomedical Sciences, Universidad de Chile, Santiago, Chile.,Biomedical Neuroscience Institute, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - Pablo Henny
- Department of Anatomy and Interdisciplinary Center of Neurosciences, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Miguel L Concha
- Laboratory of Experimental Ontogeny, Faculty of Medicine, Institute of Biomedical Sciences, Universidad de Chile, Santiago, Chile.,Biomedical Neuroscience Institute, Santiago, Chile.,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
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Dyková I, Žák J, Reichard M, Součková K, Slabý O, Bystrý V, Blažek R. Histopathology of laboratory-reared Nothobranchius fishes: Mycobacterial infections versus neoplastic lesions. JOURNAL OF FISH DISEASES 2021; 44:1179-1190. [PMID: 33844322 DOI: 10.1111/jfd.13378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 06/12/2023]
Abstract
Short-lived killifishes of the genus Nothobranchius Peters, 1868 (Cyprinodontiformes) are considered promising model organisms for biomedical research on ageing and tumorigenesis. We conducted histopathological analysis of 411 adult individuals from three Nothobranchius species to study details on spontaneous age-related neoplastic lesions. Light microscopy based on H&E and toluidine blue-stained sections revealed (a) non-proliferative liver changes with pronounced vacuolation of hepatocytes; (b) proliferation of kidney haemopoietic tissue contributing to excretory system damage; (c) proliferation of splenic mononuclear haemoblasts accompanied by reduced erythropoiesis; (d) proliferation of mononuclear cell aggregates in the liver parenchyma; and (e) rare occurrence of hepatocellular adenomas. Ziehl-Neelsen (ZN) staining revealed that the proliferative lesions are a host defence response to mycobacterial infections manifested by activation of the mononuclear phagocytic system and atypical granulomatous inflammatory reaction. 16S rRNA analysis identified three species of Mycobacterium in our samples. Our findings turn attention to lesions which mimic neoplasms by their gross appearance and question the light microscopic interpretation of lesions unless differential ZN staining is included. Beyond the limitations of our morphological approach, the intensity of mycobacterial infections is a challenging opportunity for research into the molecular-genetic background of the mononuclear phagocytic system reaction in Nothobranchius killifish.
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Affiliation(s)
- Iva Dyková
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jakub Žák
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
- Department of Zoology, Faculty of Science, Charles University, Brno, Czech Republic
| | - Martin Reichard
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
| | - Kamila Součková
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Ondřej Slabý
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Vojtěch Bystrý
- Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Radim Blažek
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
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6
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Van Houcke J, Mariën V, Zandecki C, Seuntjens E, Ayana R, Arckens L. Modeling Neuroregeneration and Neurorepair in an Aging Context: The Power of a Teleost Model. Front Cell Dev Biol 2021; 9:619197. [PMID: 33816468 PMCID: PMC8012675 DOI: 10.3389/fcell.2021.619197] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 02/19/2021] [Indexed: 01/10/2023] Open
Abstract
Aging increases the risk for neurodegenerative disease and brain trauma, both leading to irreversible and multifaceted deficits that impose a clear societal and economic burden onto the growing world population. Despite tremendous research efforts, there are still no treatments available that can fully restore brain function, which would imply neuroregeneration. In the adult mammalian brain, neuroregeneration is naturally limited, even more so in an aging context. In view of the significant influence of aging on (late-onset) neurological disease, it is a critical factor in future research. This review discusses the use of a non-standard gerontology model, the teleost brain, for studying the impact of aging on neurorepair. Teleost fish share a vertebrate physiology with mammals, including mammalian-like aging, but in contrast to mammals have a high capacity for regeneration. Moreover, access to large mutagenesis screens empowers these teleost species to fill the gap between established invertebrate and rodent models. As such, we here highlight opportunities to decode the factor age in relation to neurorepair, and we propose the use of teleost fish, and in particular killifish, to fuel new research in the neuro-gerontology field.
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Affiliation(s)
- Jolien Van Houcke
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium
| | - Valerie Mariën
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium
| | - Caroline Zandecki
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium.,Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Eve Seuntjens
- Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium.,Leuven Brain Institute, Leuven, Belgium
| | - Rajagopal Ayana
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium.,Laboratory of Developmental Neurobiology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Lutgarde Arckens
- Laboratory of Neuroplasticity and Neuroproteomics, Department of Biology, KU Leuven, Leuven, Belgium.,Leuven Brain Institute, Leuven, Belgium
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Poeschla M, Valenzano DR. The turquoise killifish: a genetically tractable model for the study of aging. ACTA ACUST UNITED AC 2020; 223:223/Suppl_1/jeb209296. [PMID: 32034047 DOI: 10.1242/jeb.209296] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Lifespan is a remarkably diverse trait in nature, ranging from just hours in adult mayflies to hundreds of years in the Greenland shark and quahog clam. Great disparities in lifespan are often observed even among somewhat closely related species; for example, in the laboratory, wild-derived strains of the common house mouse have a maximum observed lifespan of approximately 6 years, while a similarly sized rodent, the naked mole rat, can live for over 30 years. Comparative biology of aging across the tree of life provides a tremendous opportunity for understanding the molecular and genetic basis underlying lifespan and aging. However, a lack of molecular and laboratory tools has limited the ability of researchers to take full advantage of the incredible diversity of aging phenotypes in nature. Recent developments in genomic technology have made it increasingly possible to study non-canonical model organisms for aging. One promising new genetic model organism amenable to a range of experimental interventions is the turquoise killifish (Nothobranchius furzeri). This fish species has a naturally short lifespan and undergoes a wide range of aging-related transformations. These fish have a fully sequenced genome and transcriptome, and killifish embryos are accessible to transgenesis and genome editing. Furthermore, different killifish species and populations show striking differences in lifespan, providing the opportunity for comparative analysis of aging. This Review introduces the natural life history of the turquoise killifish, its emerging applicability as an aging model system, the genetic tools that have been developed to study aging for this species and a summary of recent studies facilitated by these new tools.
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Affiliation(s)
- Michael Poeschla
- Max Planck Institute for Biology of Ageing, 50931 Cologne, Germany.,CECAD, University of Cologne, 50931 Cologne, Germany
| | - Dario R Valenzano
- Max Planck Institute for Biology of Ageing, 50931 Cologne, Germany .,CECAD, University of Cologne, 50931 Cologne, Germany
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8
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Dyková I, Blažek R, Součková K, Reichard M, Slabý O. Spontaneous adenocarcinoma of the gas gland in Nothobranchius fishes. DISEASES OF AQUATIC ORGANISMS 2020; 137:205-210. [PMID: 32132273 DOI: 10.3354/dao03437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nothobranchius fishes (Cyprinodontiformes), known for their genetically encoded extremely compressed lifespan, are considered an excellent vertebrate model for the research of aging. Unlike the rapid accumulation of data concerning their biology, ecology and genome, knowledge of their age-related diseases, including tumours, is still very limited. This Note reports spontaneous neoplastic lesions in the swim bladder gas glands of Nothobranchius furzeri, N. kadleci and N. orthonotus. Based on light and transmission electron microscopy, the neoplastic proliferation of gas gland cells was classified as adenocarcinoma. There was a concurrent proliferation of haemopoietic cells in the kidney interstitium in all individuals diagnosed with this type of primary neoplasia.
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Affiliation(s)
- Iva Dyková
- Institute of Botany and Zoology, Masaryk University, Brno 60137, Czech Republic
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9
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Age-associated liver alterations in wild populations of Austrolebias minuano, a short-lived Neotropical annual killifish. Biogerontology 2019; 20:687-698. [DOI: 10.1007/s10522-019-09822-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 07/10/2019] [Indexed: 01/09/2023]
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10
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Liu T, Ma L, Zheng Z, Li F, Liu S, Xie Y, Li G. Resveratrol inhibits age-dependent spontaneous tumorigenesis by SIRT1-mediated post-translational modulations in the annual fish Nothobranchius guentheri. Oncotarget 2017; 8:55422-55434. [PMID: 28903430 PMCID: PMC5589669 DOI: 10.18632/oncotarget.19268] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/20/2017] [Indexed: 12/31/2022] Open
Abstract
Resveratrol, SIRT1 activator, inhibits carcinogenesis predominantly performed in transgenic animal models, orthotopic cancers of nude mice or different cancer cell lines, but its effects during process of spontaneous tumors using vertebrate models remain untested. Spontaneous liver neoplasm is an age-related disease and is inhibited by resveratrol in the annual fish Nothobranchius guentheri, which indicates that the fish can act as an excellent model to study spontaneous tumorigenesis. Totally, 175 fish were fed with resveratrol and another 175 fish for controls. Treated fish were fed with resveratrol (25 μg/fish/day) from sexual maturity (4-month-old) until they were sacrificed at 6-, 9- and 12-month-old. Immunoblot, immunohistochemistry and co-immunoprecipitation were employed to investigate the underlying mechanisms that resveratrol inhibited age-dependent spontaneous tumorigenesis in the fish. Results showed that resveratrol increased protein level of SIRT1 and alleviated age-associated tumorigenesis in liver. With SIRT1 up-regulation, resveratrol reduced proliferation by deacetylating K-Ras and inactivating K-Ras/PI3K/AKT pathway; and promoted apoptosis through deacetylation and dephosphorylation of FoxOs, up-regulation of DLC1 and interaction between SIRT1 and DLC1, and dephosphorylation of DLC1 in spontaneous neoplasms. We established a novel short-lived fish model for understanding the molecular mechanisms of drugs on age-dependent spontaneous tumorigenesis.
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Affiliation(s)
- Tingting Liu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Long Ma
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Zhaodi Zheng
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Fenglin Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Shan Liu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Yingbo Xie
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
| | - Guorong Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, School of Life Sciences, Shandong Normal University, Jinan, China
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11
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Sahm A, Bens M, Platzer M, Cellerino A. Parallel evolution of genes controlling mitonuclear balance in short-lived annual fishes. Aging Cell 2017; 16:488-496. [PMID: 28295945 PMCID: PMC5418189 DOI: 10.1111/acel.12577] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2016] [Indexed: 12/15/2022] Open
Abstract
The current molecular understanding of the aging process derives almost exclusively from the study of random or targeted single‐gene mutations in highly inbred laboratory species, mostly invertebrates. Little information is available as to the genetic mechanisms responsible for natural lifespan variation and the evolution of lifespan, especially in vertebrates. Here, we investigated the pattern of positive selection in annual (i.e., short‐lived) and nonannual (i.e., longer‐lived) African killifishes to identify a genomic substrate for evolution of annual life history (and reduced lifespan). We identified genes under positive selection in all steps of mitochondrial biogenesis: mitochondrial (mt) DNA replication, transcription from mt promoters, processing and stabilization of mt RNAs, mt translation, assembly of respiratory chain complexes, and electron transport chain. Signs of paralleled evolution (i.e., evolution in more than one branch of Nothobranchius phylogeny) are observed in four out of five steps. Moreover, some genes under positive selection in Nothobranchius are under positive selection also in long‐lived mammals such as bats and mole‐rats. Complexes of the respiratory chain are formed in a coordinates multistep process where nuclearly and mitochondrially encoded components are assembled and inserted into the inner mitochondrial membrane. The coordination of this process is named mitonuclear balance, and experimental manipulations of mitonuclear balance can increase longevity of laboratory species. Our data strongly indicate that these genes are also casually linked to evolution lifespan in vertebrates.
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Affiliation(s)
- Arne Sahm
- Leibniz Insitute on Ageing; Fritz-Lipmann Institute; Jena 07745 Germany
| | - Martin Bens
- Leibniz Insitute on Ageing; Fritz-Lipmann Institute; Jena 07745 Germany
| | - Matthias Platzer
- Leibniz Insitute on Ageing; Fritz-Lipmann Institute; Jena 07745 Germany
| | - Alessandro Cellerino
- Leibniz Insitute on Ageing; Fritz-Lipmann Institute; Jena 07745 Germany
- Bio@SNS; Scuola Normale Superiore; Pisa 56124 Italy
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12
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Blažek R, Polačik M, Kačer P, Cellerino A, Řežucha R, Methling C, Tomášek O, Syslová K, Terzibasi Tozzini E, Albrecht T, Vrtílek M, Reichard M. Repeated intraspecific divergence in life span and aging of African annual fishes along an aridity gradient. Evolution 2016; 71:386-402. [PMID: 27859247 DOI: 10.1111/evo.13127] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 11/07/2016] [Accepted: 11/09/2016] [Indexed: 01/22/2023]
Abstract
Life span and aging are substantially modified by natural selection. Across species, higher extrinsic (environmentally related) mortality (and hence shorter life expectancy) selects for the evolution of more rapid aging. However, among populations within species, high extrinsic mortality can lead to extended life span and slower aging as a consequence of condition-dependent survival. Using within-species contrasts of eight natural populations of Nothobranchius fishes in common garden experiments, we demonstrate that populations originating from dry regions (with short life expectancy) had shorter intrinsic life spans and a greater increase in mortality with age, more pronounced cellular and physiological deterioration (oxidative damage, tumor load), and a faster decline in fertility than populations from wetter regions. This parallel intraspecific divergence in life span and aging was not associated with divergence in early life history (rapid growth, maturation) or pace-of-life syndrome (high metabolic rates, active behavior). Variability across four study species suggests that a combination of different aging and life-history traits conformed with or contradicted the predictions for each species. These findings demonstrate that variation in life span and functional decline among natural populations are linked, genetically underpinned, and can evolve relatively rapidly.
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Affiliation(s)
- Radim Blažek
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65, Brno, Czech Republic
| | - Matej Polačik
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65, Brno, Czech Republic
| | - Petr Kačer
- Laboratory of Medicinal Diagnostics, Department of Organic Technology, University of Chemistry and Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Alessandro Cellerino
- Bio@SNS, Scuola Normale Superiore, Department of Neurosciences, Piazza dei Cavalieri 7, 56126, Pisa, Italy.,Fritz Lipmann Institute for Age Research, Leibniz Institute, Beutenbergstr. 11, D-07745, Jena, Germany
| | - Radomil Řežucha
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65, Brno, Czech Republic
| | - Caroline Methling
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65, Brno, Czech Republic
| | - Oldřich Tomášek
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65, Brno, Czech Republic.,Department of Zoology, Faculty of Sciences, Charles University in Prague, Viničná 7, 128 44, Praha, Czech Republic
| | - Kamila Syslová
- Laboratory of Medicinal Diagnostics, Department of Organic Technology, University of Chemistry and Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Eva Terzibasi Tozzini
- Bio@SNS, Scuola Normale Superiore, Department of Neurosciences, Piazza dei Cavalieri 7, 56126, Pisa, Italy
| | - Tomáš Albrecht
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65, Brno, Czech Republic.,Department of Zoology, Faculty of Sciences, Charles University in Prague, Viničná 7, 128 44, Praha, Czech Republic
| | - Milan Vrtílek
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65, Brno, Czech Republic
| | - Martin Reichard
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Květná 8, 603 65, Brno, Czech Republic
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13
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Kim Y, Nam HG, Valenzano DR. The short-lived African turquoise killifish: an emerging experimental model for ageing. Dis Model Mech 2016; 9:115-29. [PMID: 26839399 PMCID: PMC4770150 DOI: 10.1242/dmm.023226] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Human ageing is a fundamental biological process that leads to functional decay, increased risk for various diseases and, ultimately, death. Some of the basic biological mechanisms underlying human ageing are shared with other organisms; thus, animal models have been invaluable in providing key mechanistic and molecular insights into the common bases of biological ageing. In this Review, we briefly summarise the major applications of the most commonly used model organisms adopted in ageing research and highlight their relevance in understanding human ageing. We compare the strengths and limitations of different model organisms and discuss in detail an emerging ageing model, the short-lived African turquoise killifish. We review the recent progress made in using the turquoise killifish to study the biology of ageing and discuss potential future applications of this promising animal model.
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Affiliation(s)
- Yumi Kim
- Max Planck Institute for Biology of Ageing, D50931, Cologne, Germany Department of New Biology, DGIST, 711-873, Daegu, Republic of Korea
| | - Hong Gil Nam
- Department of New Biology, DGIST, 711-873, Daegu, Republic of Korea Center for Plant Aging Research, Institute for Basic Science, 711-873, Daegu, Republic of Korea
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14
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Polačik M, Blažek R, Reichard M. Laboratory breeding of the short-lived annual killifish Nothobranchius furzeri. Nat Protoc 2016; 11:1396-413. [DOI: 10.1038/nprot.2016.080] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Insights into Sex Chromosome Evolution and Aging from the Genome of a Short-Lived Fish. Cell 2016; 163:1527-38. [PMID: 26638077 DOI: 10.1016/j.cell.2015.10.071] [Citation(s) in RCA: 183] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 08/11/2015] [Accepted: 10/21/2015] [Indexed: 01/16/2023]
Abstract
The killifish Nothobranchius furzeri is the shortest-lived vertebrate that can be bred in the laboratory. Its rapid growth, early sexual maturation, fast aging, and arrested embryonic development (diapause) make it an attractive model organism in biomedical research. Here, we report a draft sequence of its genome that allowed us to uncover an intra-species Y chromosome polymorphism representing-in real time-different stages of sex chromosome formation that display features of early mammalian XY evolution "in action." Our data suggest that gdf6Y, encoding a TGF-β family growth factor, is the master sex-determining gene in N. furzeri. Moreover, we observed genomic clustering of aging-related genes, identified genes under positive selection, and revealed significant similarities of gene expression profiles between diapause and aging, particularly for genes controlling cell cycle and translation. The annotated genome sequence is provided as an online resource (http://www.nothobranchius.info/NFINgb).
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16
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Cellerino A, Valenzano DR, Reichard M. From the bush to the bench: the annual
Nothobranchius
fishes as a new model system in biology. Biol Rev Camb Philos Soc 2015; 91:511-33. [DOI: 10.1111/brv.12183] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 03/04/2015] [Accepted: 03/13/2015] [Indexed: 02/01/2023]
Affiliation(s)
- Alessandro Cellerino
- Bio@SNS, Scuola Normale Superiore Department of Neurosciences Piazza dei Cavalieri 7 56126 Pisa Italy
- Fritz Lipmann Institute for Age Research, Leibniz Institute Beutenbergstr. 11 D‐07745 Jena Germany
| | - Dario R. Valenzano
- Max Planck Institute for Biology of Ageing Joseph‐Stelzmann‐Str. 9b D‐50931 Cologne Germany
| | - Martin Reichard
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic Květná 8 603 65 Brno Czech Republic
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