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Klaassen H, Tissot S, Meliani J, Boutry J, Miltiadous A, Biro PA, Mitchell DJ, Ujvari B, Schultz A, Thomas F, Dujon AM. Behavioural ecology meets oncology: quantifying the recovery of animal behaviour to a transient exposure to a cancer risk factor. Proc Biol Sci 2024; 291:20232666. [PMID: 38351808 PMCID: PMC10865010 DOI: 10.1098/rspb.2023.2666] [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: 11/26/2023] [Accepted: 01/15/2024] [Indexed: 02/16/2024] Open
Abstract
Wildlife is increasingly exposed to sublethal transient cancer risk factors, including mutagenic substances, which activates their anti-cancer defences, promotes tumourigenesis, and may negatively impact populations. Little is known about how exposure to cancer risk factors impacts the behaviour of wildlife. Here, we investigated the effects of a sublethal, short-term exposure to a carcinogen at environmentally relevant concentrations on the activity patterns of wild Girardia tigrina planaria during a two-phase experiment, consisting of a 7-day exposure to cadmium period followed by a 7-day recovery period. To comprehensively explore the effects of the exposure on activity patterns, we employed the double hierarchical generalized linear model framework which explicitly models residual intraindividual variability in addition to the mean and variance of the population. We found that exposed planaria were less active compared to unexposed individuals and were able to recover to pre-exposure activity levels albeit with a reduced variance in activity at the start of the recovery phase. Planaria showing high activity levels were less predictable with larger daily activity variations and higher residual variance. Thus, the shift in behavioural variability induced by an exposure to a cancer risk factor can be quantified using advanced tools from the field of behavioural ecology. This is required to understand how tumourous processes affect the ecology of species.
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Affiliation(s)
- Hiske Klaassen
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Sophie Tissot
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Jordan Meliani
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Justine Boutry
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Anna Miltiadous
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Peter A. Biro
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | | | - Beata Ujvari
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Aaron Schultz
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Frédéric Thomas
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Antoine M. Dujon
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
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2
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Trivedi DD, Dalai SK, Bakshi SR. The Mystery of Cancer Resistance: A Revelation Within Nature. J Mol Evol 2023; 91:133-155. [PMID: 36693985 DOI: 10.1007/s00239-023-10092-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 01/04/2023] [Indexed: 01/25/2023]
Abstract
Cancer, a disease due to uncontrolled cell proliferation is as ancient as multicellular organisms. A 255-million-years-old fossilized forerunner mammal gorgonopsian is probably the oldest evidence of cancer, to date. Cancer seems to have evolved by adapting to the microenvironment occupied by immune sentinel, modulating the cellular behavior from cytotoxic to regulatory, acquiring resistance to chemotherapy and surviving hypoxia. The interaction of genes with environmental carcinogens is central to cancer onset, seen as a spectrum of cancer susceptibility among human population. Cancer occurs in life forms other than human also, although their exposure to environmental carcinogens can be different. Role of genetic etiology in cancer in multiple species can be interesting with regard to not only cancer susceptibility, but also genetic conservation and adaptation in speciation. The widely used model organisms for cancer research are mouse and rat which are short-lived and reproduce rapidly. Research in these cancer prone animal models has been valuable as these have led to cancer therapy. However, another rewarding area of cancer research can be the cancer-resistant animal species. The Peto's paradox and G-value paradox are evident when natural cancer resistance is observed in large mammals, like elephant and whale, small rodents viz. Naked Mole Rat and Blind Mole Rat, and Bat. The cancer resistance remains to be explored in other small or large and long-living animals like giraffe, camel, rhinoceros, water buffalo, Indian bison, Shire horse, polar bear, manatee, elephant seal, walrus, hippopotamus, turtle and tortoise, sloth, and squirrel. Indeed, understanding the molecular mechanisms of avoiding neoplastic transformation across various life forms can be potentially having translational value for human cancer management. Adapted and Modified from (Hanahan and Weinberg 2011).
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Xie C, Li X, Hei L, Chen Y, Dong Y, Zhang S, Ma S, Xu J, Pang Q, Lynch I, Guo Z, Zhang P. Toxicity of ceria nanoparticles to the regeneration of freshwater planarian Dugesia japonica: The role of biotransformation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159590. [PMID: 36270358 DOI: 10.1016/j.scitotenv.2022.159590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/18/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
Cerium oxide nanoparticles (n-CeO2) have wide applications ranging from industrial to consumer products, which would inevitably lead to their release into the environment. Despite the toxicity of n-CeO2 on aquatic organisms has been largely reported, research on developing organisms is still lacking. In this study, we investigate the toxic effects of n-CeO2 on the stem cells, tissue- and neuro-regeneration, using freshwater planarian Dugesia japonica as a model. Effects of bulk sized (μ-) CeO2 and ionic Ce (Ce3+) were compared with that of n-CeO2 to explore the origin of the toxic effects of n-CeO2. No overt toxicity was observed in μ-CeO2 treatment. n-CeO2 not only impaired the homeostasis of normal planarians, but also inhibited the regeneration processes of regenerated planarians, demonstrated by the inhibited blastema growth, disturbed antioxidant defense system at molecular levels, elevated DNA-damage and decreased stem cell proliferation. Regenerating organisms are more susceptible to n-CeO2 than the normal ones. Ce3+ exhibited significantly higher toxicity than n-CeO2, even though the total Ce uptake is 0.2 % less in Ce3+ than in n-CeO2 treated in planarian. X-ray absorption near edge spectroscopy (XANES) analysis revealed that 12.8 % of n-CeO2 (5.95 mg/kg Ce per planarian) was transformed to Ce3+ after interaction with planarian, suggesting that biotransformation at the nano-bio interface might play an important role in the observed toxicity. Since the biotransformation of n-CeO2 is a slow process, it may cause long-term chronic toxicity to planarians due to the slow while sustained release of toxic Ce3+ ions.
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Affiliation(s)
- Changjian Xie
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China.
| | - Xiaowei Li
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Lisha Hei
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Yiqing Chen
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Yuling Dong
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Shujing Zhang
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Shan Ma
- Zibo Environment Monitoring Center, Zibo 25500, Shandong, China
| | - Jianing Xu
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Qiuxiang Pang
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China.
| | - Iseult Lynch
- School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Zhiling Guo
- School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Peng Zhang
- School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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Gambino G, Iacopetti P, Guidi P, Ippolito C, Linsalata S, Salvetti A, Rossi L. Cell quiescence in planarian stem cells, interplay between p53 and nutritional stimuli. Open Biol 2022; 12:220216. [PMID: 36541101 PMCID: PMC9768645 DOI: 10.1098/rsob.220216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Cell quiescence appeared early in evolution as an adaptive response to adverse conditions (i.e. nutrient depletion). In metazoans, quiescence has been involved in additional processes like tissue homeostasis, which is made possible by the presence of adult stem cells (ASCs). Cell cycle control machinery is a common hub for quiescence entrance, and evidence indicates a role for p53 in establishing the quiescent state of undamaged cells. Mechanisms responsible for waking up quiescent cells remain elusive, and nutritional stimulus, as a legacy of its original role, still appears to be a player in quiescence exit. Planarians, rich in ASCs, represent a suitable system in which we characterized a quiescent population of ASCs, the dorsal midline cord (DMC) cells, exhibiting unique transcriptional features and maintained quiescent by p53 and awakened upon feeding. The function of DMC cells is puzzling and we speculate that DMC cells, despite retaining ancient properties, might represent a functional drift in which quiescence has been recruited to provide evolutionary advantages.
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Affiliation(s)
- Gaetana Gambino
- Department of Clinical and Experimental Medicine, University of Pisa, Via Volta 4, 56126 Pisa, Italy
| | - Paola Iacopetti
- Department of Clinical and Experimental Medicine, University of Pisa, Via Volta 4, 56126 Pisa, Italy
| | - Patrizia Guidi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Volta 4, 56126 Pisa, Italy
| | - Chiara Ippolito
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126 Pisa, Italy
| | - Stefania Linsalata
- Medical Physics Unit, Azienda Ospedaliera Universitaria Pisana, Via Roma 67, 56126 Pisa, Italy
| | - Alessandra Salvetti
- Department of Clinical and Experimental Medicine, University of Pisa, Via Volta 4, 56126 Pisa, Italy
| | - Leonardo Rossi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Volta 4, 56126 Pisa, Italy
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Dujon AM, Boutry J, Tissot S, Meliani J, Guimard L, Rieu O, Ujvari B, Thomas F. A review of the methods used to induce cancer in invertebrates to study its effects on the evolution of species and ecosystem functioning. Methods Ecol Evol 2022. [DOI: 10.1111/2041-210x.13938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antoine M. Dujon
- Deakin University Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology Waurn Ponds Victoria Australia
- CANECEV‐Centre de Recherches Ecologiques et Evolutives sur le Cancer (CREEC) Montpellier France
- CREEC, MIVEGEC UMR IRD 224‐CNRS 5290‐Université de Montpellier Montpellier France
| | - Justine Boutry
- CANECEV‐Centre de Recherches Ecologiques et Evolutives sur le Cancer (CREEC) Montpellier France
- CREEC, MIVEGEC UMR IRD 224‐CNRS 5290‐Université de Montpellier Montpellier France
| | - Sophie Tissot
- CANECEV‐Centre de Recherches Ecologiques et Evolutives sur le Cancer (CREEC) Montpellier France
- CREEC, MIVEGEC UMR IRD 224‐CNRS 5290‐Université de Montpellier Montpellier France
| | - Jordan Meliani
- CANECEV‐Centre de Recherches Ecologiques et Evolutives sur le Cancer (CREEC) Montpellier France
- CREEC, MIVEGEC UMR IRD 224‐CNRS 5290‐Université de Montpellier Montpellier France
| | - Lena Guimard
- CANECEV‐Centre de Recherches Ecologiques et Evolutives sur le Cancer (CREEC) Montpellier France
- CREEC, MIVEGEC UMR IRD 224‐CNRS 5290‐Université de Montpellier Montpellier France
| | - Océane Rieu
- CANECEV‐Centre de Recherches Ecologiques et Evolutives sur le Cancer (CREEC) Montpellier France
- CREEC, MIVEGEC UMR IRD 224‐CNRS 5290‐Université de Montpellier Montpellier France
| | - Beata Ujvari
- Deakin University Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology Waurn Ponds Victoria Australia
- CANECEV‐Centre de Recherches Ecologiques et Evolutives sur le Cancer (CREEC) Montpellier France
| | - Frédéric Thomas
- CANECEV‐Centre de Recherches Ecologiques et Evolutives sur le Cancer (CREEC) Montpellier France
- CREEC, MIVEGEC UMR IRD 224‐CNRS 5290‐Université de Montpellier Montpellier France
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6
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Transcription Factors Active in the Anterior Blastema of Schmidtea mediterranea. Biomolecules 2021; 11:biom11121782. [PMID: 34944426 PMCID: PMC8698962 DOI: 10.3390/biom11121782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 12/28/2022] Open
Abstract
Regeneration, the restoration of body parts after injury, is quite widespread in the animal kingdom. Species from virtually all Phyla possess regenerative abilities. Human beings, however, are poor regenerators. Yet, the progress of knowledge and technology in the fields of bioengineering, stem cells, and regenerative biology have fostered major advancements in regenerative medical treatments, which aim to regenerate tissues and organs and restore function. Human induced pluripotent stem cells can differentiate into any cell type of the body; however, the structural and cellular complexity of the human tissues, together with the inability of our adult body to control pluripotency, require a better mechanistic understanding. Planarians, with their capacity to regenerate lost body parts thanks to the presence of adult pluripotent stem cells could help providing such an understanding. In this paper, we used a top-down approach to shortlist blastema transcription factors (TFs) active during anterior regeneration. We found 44 TFs—31 of which are novel in planarian—that are expressed in the regenerating blastema. We analyzed the function of half of them and found that they play a role in the regeneration of anterior structures, like the anterior organizer, the positional instruction muscle cells, the brain, the photoreceptor, the intestine. Our findings revealed a glimpse of the complexity of the transcriptional network governing anterior regeneration in planarians, confirming that this animal model is the perfect playground to study in vivo how pluripotency copes with adulthood.
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Molina MD, Cebrià F. Decoding Stem Cells: An Overview on Planarian Stem Cell Heterogeneity and Lineage Progression. Biomolecules 2021; 11:1532. [PMID: 34680165 PMCID: PMC8533874 DOI: 10.3390/biom11101532] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 01/26/2023] Open
Abstract
Planarians are flatworms capable of whole-body regeneration, able to regrow any missing body part after injury or amputation. The extraordinary regenerative capacity of planarians is based upon the presence in the adult of a large population of somatic pluripotent stem cells. These cells, called neoblasts, offer a unique system to study the process of stem cell specification and differentiation in vivo. In recent years, FACS-based isolation of neoblasts, RNAi functional analyses as well as high-throughput approaches such as single-cell sequencing have allowed a rapid progress in our understanding of many different aspects of neoblast biology. Here, we summarize our current knowledge on the molecular signatures that define planarian neoblasts heterogeneity, which includes a percentage of truly pluripotent stem cells, and guide the commitment of pluripotent neoblasts into lineage-specific progenitor cells, as well as their differentiation into specific planarian cell types.
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Affiliation(s)
- M. Dolores Molina
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain
- Institute of Biomedicine of the University of Barcelona (IBUB), 08028 Barcelona, Spain
| | - Francesc Cebrià
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain
- Institute of Biomedicine of the University of Barcelona (IBUB), 08028 Barcelona, Spain
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8
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Marquardt S, Pavlopoulou A, Takan I, Dhar P, Pützer BM, Logotheti S. A Systems-Based Key Innovation-Driven Approach Infers Co-option of Jaw Developmental Programs During Cancer Progression. Front Cell Dev Biol 2021; 9:682619. [PMID: 34150777 PMCID: PMC8207138 DOI: 10.3389/fcell.2021.682619] [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: 03/18/2021] [Accepted: 05/11/2021] [Indexed: 11/17/2022] Open
Abstract
Cancer acquires metastatic potential and evolves via co-opting gene regulatory networks (GRN) of embryonic development and tissue homeostasis. Such GRNs are encoded in the genome and frequently conserved among species. Considering that all metazoa have evolved from a common ancestor via major macroevolutionary events which shaped those GRNs and increased morphogenetic complexity, we sought to examine whether there are any key innovations that may be consistently and deterministically linked with metastatic potential across the metazoa clades. To address tumor evolution relative to organismal evolution, we revisited and retrospectively juxtaposed seminal laboratory and field cancer studies across taxa that lie on the evolutionary lineage from cnidaria to humans. We subsequently applied bioinformatics to integrate species-specific cancer phenotypes, multiomics data from up to 42 human cancer types, developmental phenotypes of knockout mice, and molecular phylogenetics. We found that the phenotypic manifestations of metastasis appear to coincide with agnatha-to-gnathostome transition. Genes indispensable for jaw development, a key innovation of gnathostomes, undergo mutations or methylation alterations, are aberrantly transcribed during tumor progression and are causatively associated with invasion and metastasis. There is a preference for deregulation of gnathostome-specific versus pre-gnathostome genes occupying hubs of the jaw development network. According to these data, we propose our systems-based model as an in silico tool the prediction of likely tumor evolutionary trajectories and therapeutic targets for metastasis prevention, on the rationale that the same genes which are essential for key innovations that catalyzed vertebrate evolution, such as jaws, are also important for tumor evolution.
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Affiliation(s)
- Stephan Marquardt
- Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, Rostock, Germany
| | - Athanasia Pavlopoulou
- İzmir Biomedicine and Genome Center, İzmir, Turkey
- İzmir International Biomedicine and Genome Institute, Dokuz Eylül University, İzmir, Turkey
| | - Işıl Takan
- İzmir Biomedicine and Genome Center, İzmir, Turkey
- İzmir International Biomedicine and Genome Institute, Dokuz Eylül University, İzmir, Turkey
| | - Prabir Dhar
- Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, Rostock, Germany
| | - Brigitte M. Pützer
- Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, Rostock, Germany
- Department Life, Light & Matter, University of Rostock, Rostock, Germany
| | - Stella Logotheti
- Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, Rostock, Germany
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9
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Rosner A, Armengaud J, Ballarin L, Barnay-Verdier S, Cima F, Coelho AV, Domart-Coulon I, Drobne D, Genevière AM, Jemec Kokalj A, Kotlarska E, Lyons DM, Mass T, Paz G, Pazdro K, Perić L, Ramšak A, Rakers S, Rinkevich B, Spagnuolo A, Sugni M, Cambier S. Stem cells of aquatic invertebrates as an advanced tool for assessing ecotoxicological impacts. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:144565. [PMID: 33736145 DOI: 10.1016/j.scitotenv.2020.144565] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/10/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
Environmental stressors are assessed through methods that quantify their impacts on a wide range of metrics including species density, growth rates, reproduction, behaviour and physiology, as on host-pathogen interactions and immunocompetence. Environmental stress may induce additional sublethal effects, like mutations and epigenetic signatures affecting offspring via germline mediated transgenerational inheritance, shaping phenotypic plasticity, increasing disease susceptibility, tissue pathologies, changes in social behaviour and biological invasions. The growing diversity of pollutants released into aquatic environments requires the development of a reliable, standardised and 3R (replacement, reduction and refinement of animals in research) compliant in vitro toolbox. The tools have to be in line with REACH regulation 1907/2006/EC, aiming to improve strategies for potential ecotoxicological risks assessment and monitoring of chemicals threatening human health and aquatic environments. Aquatic invertebrates' adult stem cells (ASCs) are numerous and can be pluripotent, as illustrated by high regeneration ability documented in many of these taxa. This is of further importance as in many aquatic invertebrate taxa, ASCs are able to differentiate into germ cells. Here we propose that ASCs from key aquatic invertebrates may be harnessed for applicable and standardised new tests in ecotoxicology. As part of this approach, a battery of modern techniques and endpoints are proposed to be tested for their ability to correctly identify environmental stresses posed by emerging contaminants in aquatic environments. Consequently, we briefly describe the current status of the available toxicity testing and biota-based monitoring strategies in aquatic environmental ecotoxicology and highlight some of the associated open issues such as replicability, consistency and reliability in the outcomes, for understanding and assessing the impacts of various chemicals on organisms and on the entire aquatic environment. Following this, we describe the benefits of aquatic invertebrate ASC-based tools for better addressing ecotoxicological questions, along with the current obstacles and possible overhaul approaches.
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Affiliation(s)
- Amalia Rosner
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, P.O. Box 8030, Tel Shikmona, Haifa 3108001, Israel.
| | - Jean Armengaud
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, F-30200 Bagnols-sur-Cèze, France.
| | - Loriano Ballarin
- Department of Biology, University of Padova, via Ugo Bassi 58/B, 35121 Padova, Italy.
| | - Stéphanie Barnay-Verdier
- Sorbonne Université; CNRS, INSERM, Université Côte d'Azur, Institute for Research on Cancer and Aging Nice, F-06107 Nice, France.
| | - Francesca Cima
- Department of Biology, University of Padova, via Ugo Bassi 58/B, 35121 Padova, Italy.
| | - Ana Varela Coelho
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal.
| | - Isabelle Domart-Coulon
- Muséum National d'Histoire Naturelle, CNRS, Microorganism Communication and Adaptation Molecules MCAM, Paris F-75005, France.
| | - Damjana Drobne
- University of Ljubljana, Biotechnical Faculty, Department of Biology, Večna pot 111,D, 1000 Ljubljana, Slovenia.
| | - Anne-Marie Genevière
- Sorbonne Université, CNRS, Integrative Biology of Marine Organisms, BIOM, F-6650 Banyuls-sur-mer, France.
| | - Anita Jemec Kokalj
- University of Ljubljana, Biotechnical Faculty, Department of Biology, Večna pot 111,D, 1000 Ljubljana, Slovenia.
| | - Ewa Kotlarska
- Institute of Oceanology of the Polish Academy of Sciences, Powstańców Warszawy 55, 81-712 Sopot, Poland.
| | - Daniel Mark Lyons
- Center for Marine Research, Ruđer Bošković Institute, G. Paliaga 5, HR-52210 Rovinj, Croatia.
| | - Tali Mass
- Marine Biology Department, Leon H. Charney School of Marine Sciences, 199 Aba Khoushy Ave, University of Haifa, 3498838, Israel.
| | - Guy Paz
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, P.O. Box 8030, Tel Shikmona, Haifa 3108001, Israel.
| | - Ksenia Pazdro
- Institute of Oceanology of the Polish Academy of Sciences, Powstańców Warszawy 55, 81-712 Sopot, Poland
| | - Lorena Perić
- Rudjer Boskovic Institute, Laboratory for Aquaculture and Pathology of Aquaculture Organisms, Bijenička cesta 54, HR-10000 Zagreb, Croatia.
| | - Andreja Ramšak
- National Institute of Biology, Marine Biology Station, Fornače 41, 6330 Piran, Slovenia.
| | | | - Baruch Rinkevich
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, P.O. Box 8030, Tel Shikmona, Haifa 3108001, Israel.
| | - Antonietta Spagnuolo
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy.
| | - Michela Sugni
- Department of Environmental Science and Policy, University of Milan, Via Celoria 2, 20133 Milano, Italy.
| | - Sébastien Cambier
- Luxembourg Institute of Science and Technology, 5, avenue des Hauts-Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg.
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Wouters A, Ploem JP, Langie SAS, Artois T, Aboobaker A, Smeets K. Regenerative responses following DNA damage - β-catenin mediates head regrowth in the planarian Schmidtea mediterranea. J Cell Sci 2020; 133:jcs237545. [PMID: 32107291 DOI: 10.1242/jcs.237545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 02/09/2020] [Indexed: 12/12/2022] Open
Abstract
Pluripotent stem cells hold great potential for regenerative medicine. Increased replication and division, such is the case during regeneration, concomitantly increases the risk of adverse outcomes through the acquisition of mutations. Seeking for driving mechanisms of such outcomes, we challenged a pluripotent stem cell system during the tightly controlled regeneration process in the planarian Schmidtea mediterranea Exposure to the genotoxic compound methyl methanesulfonate (MMS) revealed that despite a similar DNA-damaging effect along the anteroposterior axis of intact animals, responses differed between anterior and posterior fragments after amputation. Stem cell proliferation and differentiation proceeded successfully in the amputated heads, leading to regeneration of missing tissues. Stem cells in the amputated tails showed decreased proliferation and differentiation capacity. As a result, tails could not regenerate. Interference with the body-axis-associated component β-catenin-1 increased regenerative success in tail fragments by stimulating proliferation at an early time point. Our results suggest that differences in the Wnt signalling gradient along the body axis modulate stem cell responses to MMS.
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Affiliation(s)
- Annelies Wouters
- Zoology, Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Jan-Pieter Ploem
- Zoology, Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Sabine A S Langie
- Vito Health, 2400 Mol, Belgium
- Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Tom Artois
- Zoology, Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Aziz Aboobaker
- Department of Zoology, University of Oxford, Oxford OX1 3PS, UK
| | - Karen Smeets
- Zoology, Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
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Cote LE, Simental E, Reddien PW. Muscle functions as a connective tissue and source of extracellular matrix in planarians. Nat Commun 2019; 10:1592. [PMID: 30962434 PMCID: PMC6453901 DOI: 10.1038/s41467-019-09539-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/15/2019] [Indexed: 12/24/2022] Open
Abstract
Regeneration and tissue turnover require new cell production and positional information. Planarians are flatworms capable of regenerating all body parts using a population of stem cells called neoblasts. The positional information required for tissue patterning is primarily harbored by muscle cells, which also control body contraction. Here we produce an in silico planarian matrisome and use recent whole-animal single-cell-transcriptome data to determine that muscle is a major source of extracellular matrix (ECM). No other ECM-secreting, fibroblast-like cell type was detected. Instead, muscle cells express core ECM components, including all 19 collagen-encoding genes. Inhibition of muscle-expressed hemicentin-1 (hmcn-1), which encodes a highly conserved ECM glycoprotein, results in ectopic peripheral localization of cells, including neoblasts, outside of the muscle layer. ECM secretion and hmcn-1-dependent maintenance of tissue separation indicate that muscle functions as a planarian connective tissue, raising the possibility of broad roles for connective tissue in adult positional information. How the cellular source of positional information compares across regenerative animals is unclear. Here, the authors find that planarian muscle, which harbours positional information, acts as a connective tissue by being a major site of matrisome gene expression and by maintaining tissue architecture.
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Affiliation(s)
- Lauren E Cote
- Howard Hughes Medical Institute, Whitehead Institute, and Department of Biology, Massachusetts Institute of Technology, 455 Main St, Cambridge, MA, 02142, USA
| | - Eric Simental
- Howard Hughes Medical Institute, Whitehead Institute, and Department of Biology, Massachusetts Institute of Technology, 455 Main St, Cambridge, MA, 02142, USA.,University of California San Francisco, 600 16th Street, San Francisco, CA, 94143, USA
| | - Peter W Reddien
- Howard Hughes Medical Institute, Whitehead Institute, and Department of Biology, Massachusetts Institute of Technology, 455 Main St, Cambridge, MA, 02142, USA.
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Tunes LG, Allen JM, Zayas RM, do Monte-Neto RL. Planarians as models to investigate the bioactivity of gold(I) complexes in vivo. Sci Rep 2018; 8:16180. [PMID: 30385794 PMCID: PMC6212559 DOI: 10.1038/s41598-018-34558-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 10/18/2018] [Indexed: 02/02/2023] Open
Abstract
Gold(I)-containing complexes are used in drug discovery research for rheumatoid arthritis, cancer, and parasitic infections. In this study, we tested the bioactivity of gold(I) complexes in vivo using planarians. The planarian Schmidtea mediterranea possesses orthologues of tumor suppressor genes, such as p53, that, when silenced, cause deregulation of cell proliferation and apoptosis. In this context, we tested two triethylphosphine-gold(I) complexes (AdO and AdT) to determine if they can attenuate phenotypes that result from p53 inhibition. First, we identified the drug concentration that did not affect survival or regeneration and evaluated the drug's effect on cell division and apoptosis. We found that AdT treatment decreased the number of mitotic cells and that all drug treatments increased the number of apoptotic cells. We then performed p53(RNAi) and drug treatments concomitantly and observed the phenotype progression. Drug treatment increased survival three-fold and decreased apoptosis, which resulted in an attenuated phenotype. Our results indicate that planarians can be treated with gold(I) complexes, and that this treatment can diminish the p53(RNAi) phenotype and extend survival. In this work we show that planarians can be used as a model to study the in vivo effect of gold(I) complexes and to further investigate their mechanisms of action.
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Affiliation(s)
- Luiza G Tunes
- Instituto René Rachou - Fiocruz Minas, Belo Horizonte, Minas Gerais, Brazil
- Department of Biology, San Diego State University, San Diego, California, USA
| | - John M Allen
- Department of Biology, San Diego State University, San Diego, California, USA
| | - Ricardo M Zayas
- Department of Biology, San Diego State University, San Diego, California, USA.
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