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Wu CC, Ding DS, Lo YH, Pan CY, Wen ZH. Padina Minor Extract Confers Resistance against Candida Albicans Infection: Evaluation in a Zebrafish Model. BIOLOGY 2024; 13:384. [PMID: 38927264 PMCID: PMC11201049 DOI: 10.3390/biology13060384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/10/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024]
Abstract
Padina minor is a seaweed rich in polysaccharides often used in food, feed, fertilizers, and antibacterial drugs. This study is the first to evaluate the effect of feeding zebrafish with Padina minor extract on preventing and treating C. albicans infections. This study evaluated the growth, survival, and disease resistance effects of P. minor extract on zebrafish. The fish were divided into four groups: three groups treated with 1%, 5%, or 10% P. minor extract and one untreated group (c, control). Subsequently, we analyzed how the extract affected the immune function of zebrafish infected with C. albicans. Based on the lethal concentration (LC50) calculated in the first stage, 1% was used as the effective therapeutic concentration. The results showed that the growth rate of the 1% feed group was the best, and no significant difference in survival rates between the four groups was observed. Feeding with 1% P. minor extract downregulated the expression of key inflammatory genes like tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β), and IL-10, effectively preventing and treating C. albicans infections in zebrafish. This study is a preliminary evaluation of the therapeutic efficacy of P. minor extracts against C. albicans.
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Affiliation(s)
- Chang-Cheng Wu
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
- Department of Obstetrics and Gynecology, Zuoying Armed Forces General Hospital, Kaohsiung 81342, Taiwan
| | - De-Sing Ding
- Department and Graduate Institute of Aquaculture, National Kaohsiung University of Science and Technology, Kaohsiung 811213, Taiwan;
| | - Yi-Hao Lo
- Department of Family Medicine, Zuoying Armed Forces General Hospital, Kaohsiung 81342, Taiwan;
- Department of Nursing, Shu-Zen Junior of Medicine and Management, Kaohsiung 82144, Taiwan
| | - Chieh-Yu Pan
- Department and Graduate Institute of Aquaculture, National Kaohsiung University of Science and Technology, Kaohsiung 811213, Taiwan;
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
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2
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Nguyen TT, Nguyen HN, Nghiem THL, Do XH, To TT, Do TXP, Do DL, Nguyen HG, Nguyen HM, Nguyen ND, Luu MQ, Nguyen TN, Nguyen TBN, Nguyen VT, Pham VT, Than UTT, Hoang TMN. High biocompatible FITC-conjugated silica nanoparticles for cell labeling in both in vitro and in vivo models. Sci Rep 2024; 14:6969. [PMID: 38521815 PMCID: PMC10960792 DOI: 10.1038/s41598-024-55600-w] [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: 11/01/2023] [Accepted: 02/26/2024] [Indexed: 03/25/2024] Open
Abstract
Fluorescence nanosilica-based cell tracker has been explored and applied in cell biological research. However, the aggregation of these nanoparticles at physiological pH is still the main limitation. In this research, we introduced a novel fluorescence nano-based cell tracker suitable for application in live cells. The silica-coated fluorescein isothiocyanate isomer (FITC-SiO2) nanoparticles (NPs) were modified with carboxymethylsilanetriol disodium salt (FITC-SiO2-COOH), integrating the dianion form of FITC molecules. This nanosystem exhibited superior dispersion in aqueous solutions and effectively mitigated dye leakage. These labeled NPs displayed notable biocompatibility and minimal cytotoxicity in both in vitro and in vivo conditions. Significantly, the NPs did not have negative implications on cell migration or angiogenesis. They successfully penetrated primary fibroblasts, human umbilical vein endothelial cells and HeLa cells in both 2D and 3D cultures, with the fluorescence signal enduring for over 72 h. Furthermore, the NP signals were consistently observed in the developing gastrointestinal tract of live medaka fish larvae for extended periods during phases of subdued digestive activity, without manifesting any apparent acute toxicity. These results underscore the promising utility of FITC-SiO2-COOH NPs as advanced live cell trackers in biological research.
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Affiliation(s)
- Thi Thuy Nguyen
- Center for Quantum and Electronics, Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Hanoi, Vietnam
| | - Hoang Nam Nguyen
- Nano and Energy Center, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, Vietnam
| | - Thi Ha Lien Nghiem
- Center for Quantum and Electronics, Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Hanoi, Vietnam
| | - Xuan-Hai Do
- Department of Practical and Experimental Surgery, Vietnam Military Medical University, 160 Phung Hung Street, Phuc La, Ha Dong, Hanoi, Vietnam
| | - Thanh Thuy To
- Faculty of Biology, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, 10000, Vietnam
| | - Thi Xuan Phuong Do
- Faculty of Biology, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, 10000, Vietnam
| | - Dieu Linh Do
- Faculty of Biology, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, 10000, Vietnam
| | - Huong Giang Nguyen
- Faculty of Biology, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, 10000, Vietnam
| | - Huy Manh Nguyen
- Faculty of Biology, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, 10000, Vietnam
| | - Ngoc Dinh Nguyen
- Faculty of Physics, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, Vietnam
| | - Manh Quynh Luu
- Faculty of Physics, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, Vietnam
| | - Trong Nghia Nguyen
- Center for Quantum and Electronics, Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Hanoi, Vietnam
| | - Thi Bich Ngoc Nguyen
- Center for Quantum and Electronics, Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Hanoi, Vietnam
| | - Van Toan Nguyen
- Center for Quantum and Electronics, Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Hanoi, Vietnam
| | - Van Thanh Pham
- Faculty of Physics, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, Vietnam
| | - Uyen Thi Trang Than
- Vinmec Hi-Tech Center and Vinmec-VinUni Institute of Immunology, Vinmec Healthcare System, 458 Minh Khai Street, Hanoi, Vietnam
| | - Thi My Nhung Hoang
- Faculty of Biology, VNU University of Science, Hanoi, 334 Nguyen Trai Street, Thanh Xuan, Hanoi, 10000, Vietnam.
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3
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Pande A, Thakuria D, Kushwaha B, Kumar R, S M, Rastogi A, Sood N. A cell line derived from heart of rainbow trout is refractory to Tilapia lake virus. Cell Biol Int 2024; 48:347-357. [PMID: 38212941 DOI: 10.1002/cbin.12125] [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: 05/16/2023] [Revised: 11/10/2023] [Accepted: 11/30/2023] [Indexed: 01/13/2024]
Abstract
Cell lines are important in vitro models to answer biological mechanisms with less genetic variations. The present study was attempted to develop a cell line from rainbow trout, where we obtained a cell line from the heart, named "RBT-H." The cell line was authenticated using karyotyping and cytochrome c oxidase subunit I (COI) gene sequencing. The karyotype demonstrated diploid chromosome number (2n) as 62 and the sequence of partial COI gene was 99.84% similar to rainbow trout COI data set, both suggesting the origin of RBT-H from the rainbow trout. The heart cell line was mycoplasma-free and found to be refractory to infection with the Tilapia lake virus. The RBT-H cell line is deposited in the National Repository of Fish Cell Line (NRFC) at ICAR-NBFGR, Lucknow, India, with Accession no. NRFC0075 for maintenance and distribution to researchers on request for R&D.
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Affiliation(s)
- Amit Pande
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, Uttarakhand, India
| | - Dimpal Thakuria
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, Uttarakhand, India
| | - Basdeo Kushwaha
- ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
| | - Ravindra Kumar
- ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
| | - Murali S
- ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
| | - Aakriti Rastogi
- ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
| | - Neeraj Sood
- ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
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Silveira A, Greving I, Longo E, Scheel M, Weitkamp T, Fleck C, Shahar R, Zaslansky P. Deep learning to overcome Zernike phase-contrast nanoCT artifacts for automated micro-nano porosity segmentation in bone. JOURNAL OF SYNCHROTRON RADIATION 2024; 31:136-149. [PMID: 38095668 PMCID: PMC10833422 DOI: 10.1107/s1600577523009852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 11/13/2023] [Indexed: 01/09/2024]
Abstract
Bone material contains a hierarchical network of micro- and nano-cavities and channels, known as the lacuna-canalicular network (LCN), that is thought to play an important role in mechanobiology and turnover. The LCN comprises micrometer-sized lacunae, voids that house osteocytes, and submicrometer-sized canaliculi that connect bone cells. Characterization of this network in three dimensions is crucial for many bone studies. To quantify X-ray Zernike phase-contrast nanotomography data, deep learning is used to isolate and assess porosity in artifact-laden tomographies of zebrafish bones. A technical solution is proposed to overcome the halo and shade-off domains in order to reliably obtain the distribution and morphology of the LCN in the tomographic data. Convolutional neural network (CNN) models are utilized with increasing numbers of images, repeatedly validated by `error loss' and `accuracy' metrics. U-Net and Sensor3D CNN models were trained on data obtained from two different synchrotron Zernike phase-contrast transmission X-ray microscopes, the ANATOMIX beamline at SOLEIL (Paris, France) and the P05 beamline at PETRA III (Hamburg, Germany). The Sensor3D CNN model with a smaller batch size of 32 and a training data size of 70 images showed the best performance (accuracy 0.983 and error loss 0.032). The analysis procedures, validated by comparison with human-identified ground-truth images, correctly identified the voids within the bone matrix. This proposed approach may have further application to classify structures in volumetric images that contain non-linear artifacts that degrade image quality and hinder feature identification.
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Affiliation(s)
- Andreia Silveira
- Department for Restorative, Preventive and Pediatric Dentistry, Charité-Universitaetsmedizin, Berlin, Germany
| | - Imke Greving
- Institute of Materials Physics, Helmholtz-Zentrum Hereon, Geesthacht, Germany
| | - Elena Longo
- Elettra – Sincrotrone Trieste SCpA, Basovizza, Trieste, Italy
| | | | | | - Claudia Fleck
- Fachgebiet Werkstofftechnik / Chair of Materials Science and Engineering, Institute of Materials Science and Technology, Faculty III Process Sciences, Technische Universität Berlin, Berlin, Germany
| | - Ron Shahar
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environmental Sciences, Hebrew University of Jerusalem, Rehovot, Israel
| | - Paul Zaslansky
- Department for Restorative, Preventive and Pediatric Dentistry, Charité-Universitaetsmedizin, Berlin, Germany
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5
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Zappa F, Intartaglia D, Guarino AM, De Cegli R, Wilson C, Salierno FG, Polishchuk E, Sorrentino NC, Conte I, De Matteis MA. Role of trafficking protein particle complex 2 in medaka development. Traffic 2024; 25:e12924. [PMID: 37963679 DOI: 10.1111/tra.12924] [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: 08/07/2023] [Revised: 10/16/2023] [Accepted: 10/27/2023] [Indexed: 11/16/2023]
Abstract
The skeletal dysplasia spondyloepiphyseal dysplasia tarda (SEDT) is caused by mutations in the TRAPPC2 gene, which encodes Sedlin, a component of the trafficking protein particle (TRAPP) complex that we have shown previously to be required for the export of type II collagen (Col2) from the endoplasmic reticulum. No vertebrate model for SEDT has been generated thus far. To address this gap, we generated a Sedlin knockout animal by mutating the orthologous TRAPPC2 gene (olSedl) of Oryzias latipes (medaka) fish. OlSedl deficiency leads to embryonic defects, short size, diminished skeletal ossification and altered Col2 production and secretion, resembling human defects observed in SEDT patients. Moreover, SEDT knock-out animals display photoreceptor degeneration and gut morphogenesis defects, suggesting a key role for Sedlin in the development of these organs. Thus, by studying Sedlin function in vivo, we provide evidence for a mechanistic link between TRAPPC2-mediated membrane trafficking, Col2 export, and developmental disorders.
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Affiliation(s)
- Francesca Zappa
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
| | - Daniela Intartaglia
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
| | - Andrea M Guarino
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Rossella De Cegli
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
| | - Cathal Wilson
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | | | - Elena Polishchuk
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
| | - Nicolina Cristina Sorrentino
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Ivan Conte
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Maria Antonietta De Matteis
- Telethon Institute of Genetics and Medicine, TIGEM, Pozzuoli (Naples), Italy
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
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6
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Liang M, Deng J, Gu J, Yang J, Ge F, Huang C, Wu W. TMBPF-induced neurotoxicity and oxidative stress in zebrafish larvae: impacts on central nervous system development and dopamine neurons. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 268:115710. [PMID: 38000302 DOI: 10.1016/j.ecoenv.2023.115710] [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: 08/30/2023] [Revised: 11/07/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
Bisphenol A (BPA), a common bisphenol molecule, is well known in the environment as an endocrine disruptor. Furthermore, BPs (BPA, BPS, BPF, and BPAF) have been shown in recent years to be neurotoxic to zebrafish. Tetramethyl bisphenol F (TMBPF) has recently been introduced as a substitute for bisphenol A (BPA) in various industries, including plastics and food contact coatings. However, a growing number of studies have demonstrated that the toxicity of some BPA substitutes is similar to or even stronger than BPA, posing potential harm to human health and the environment. In this study, we used zebrafish larvae as a model to investigate the neurodevelopmental effects of TMBPF at different concentrations (0, 0.25, 0.5, 1, 2, 4 and 8 mg/L). Our results showed that exposure to TMBPF at concentrations higher than 4 mg/L for 72 h post-fertilization (hpf) resulted in zebrafish mortality, whereas exposure to 2 mg/L for 144 hpf caused deformities. Furthermore, TMBPF exposure inhibited the development of the central nervous system, motor nerves, and dopamine neurons in zebrafish. Real-time polymerase chain reaction (PCR) analysis revealed that TMBPF exposure significantly down-regulated the expression of oxidative stress-related genes (Cu/Zn-SOD, Mn-SOD, and CAT) and neurodevelopmental genes (mbp, gafp, and syn2a), while up-regulated the expression of dopamine-related genes (th1, th2, and dat). Notably, treatment with the antioxidant N-acetylcysteine (NAC) alleviated TMBPF-induced toxicity. NAC can regulate the expression of genes related to oxidative stress, neurodevelopment and dopamine development, and make the nerve development of zebrafish normal. Overall, our research suggested that TMBPF may disrupt the development of the early central nervous system and dopamine neurons, leading to abnormal motor behavior in zebrafish larvae. These results highlight the potential risks associated with the use of TMBPF in various industries and the importance to evaluate its potential risks to human health and the environment.
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Affiliation(s)
- Mengyuan Liang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Jiangwangmiao Street 8, Nanjing 210042, China
| | - Junping Deng
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Jie Gu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Jiangwangmiao Street 8, Nanjing 210042, China
| | - Jinlai Yang
- Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province, China National Bamboo Research Center, Hangzhou 310012, Zhejiang, China
| | - Feng Ge
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Jiangwangmiao Street 8, Nanjing 210042, China
| | - Caoxing Huang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
| | - Wenzhu Wu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Jiangwangmiao Street 8, Nanjing 210042, China.
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7
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Watanabe Y, Katsumura E, Domon T, Ishikawa Y, Oguri R, Takashima M, Meng Q, Kinoshita M, Hashimoto H, Hitomi K. Establishment of transgenic epithelium-specific Cre-recombinase driving medaka (Oryzias latipes) by homology repair mediated knock-in. Biosci Biotechnol Biochem 2023; 87:1285-1294. [PMID: 37607777 DOI: 10.1093/bbb/zbad116] [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: 06/12/2023] [Accepted: 08/17/2023] [Indexed: 08/24/2023]
Abstract
Deletion of gene expression in the target tissues and cells is an effective strategy for elucidating the physiological functions of the protein of interest. For tissue-specific and/or inducible gene deletion, the Cre-loxP system has been widely used in various model organisms including medaka (Oryzias latipes). The epithelium is the key tissue, locating at the outermost area and playing a role in barrier to external stimuli. Despite a large genetic toolbox developed in medaka, there is no available Cre-driver line that works in an epithelium-specific manner. Here, we established epithelium-specific Cre-driver lines in medaka using a homology-directed repair mediated knock-in approach with CRISPR/Cas9, targeting each of periplakin and keratin genes. We show that Cre-recombinase is expressed exclusively in the epithelium in the knock-in lines and that it efficiently and specifically induces recombination in the tissues. These Cre-driver lines are useful for studying the functions of proteins expressed in the epithelium.
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Affiliation(s)
- Yuko Watanabe
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Eri Katsumura
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Tatsuki Domon
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Yuta Ishikawa
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Rina Oguri
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Minami Takashima
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Qi Meng
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | | | | | - Kiyotaka Hitomi
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
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Anticevic I, Otten C, Vinkovic L, Jukic L, Popovic M. Tyrosyl-DNA phosphodiesterase 1 (TDP1) and SPRTN protease repair histone 3 and topoisomerase 1 DNA-protein crosslinks in vivo. Open Biol 2023; 13:230113. [PMID: 37788708 PMCID: PMC10547559 DOI: 10.1098/rsob.230113] [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: 04/24/2023] [Accepted: 08/14/2023] [Indexed: 10/05/2023] Open
Abstract
DNA-protein crosslinks (DPCs) are frequent and damaging DNA lesions that affect all DNA transactions, which in turn can lead to the formation of double-strand breaks, genomic instability and cell death. At the organismal level, impaired DPC repair (DPCR) is associated with cancer, ageing and neurodegeneration. Despite the severe consequences of DPCs, little is known about the processes underlying repair pathways at the organism level. SPRTN is a protease that removes most cellular DPCs during replication, whereas tyrosyl-DNA phosphodiesterase 1 repairs one of the most abundant enzymatic DPCs, topoisomerase 1-DPC (TOP1-DPC). How these two enzymes repair DPCs at the organism level is currently unknown. We perform phylogenetic, syntenic, structural and expression analysis to compare tyrosyl-DNA phosphodiesterase 1 (TDP1) orthologues between human, mouse and zebrafish. Using the zebrafish animal model and human cells, we demonstrate that TDP1 and SPRTN repair endogenous, camptothecin- and formaldehyde-induced DPCs, including histone H3- and TOP1-DPCs. We show that resolution of H3-DNA crosslinks depends on upstream proteolysis by SPRTN and subsequent peptide removal by TDP1 in RPE1 cells and zebrafish embryos, whereas SPRTN and TDP1 function in different pathways in the repair of endogenous TOP1-DPCs and total DPCs. Furthermore, we have found increased TDP2 expression in TDP1-deficient cells and embryos. Understanding the role of TDP1 in DPCR at the cellular and organismal levels could provide an impetus for the development of new drugs and combination therapies with TOP1-DPC inducing drugs.
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Affiliation(s)
- Ivan Anticevic
- Department for Marine and Environmental Research, Laboratory for Molecular Ecotoxicology, Institute Ruder Boskovic, Zagreb, Croatia
| | - Cecile Otten
- Department for Marine and Environmental Research, Laboratory for Molecular Ecotoxicology, Institute Ruder Boskovic, Zagreb, Croatia
| | - Luka Vinkovic
- Department for Marine and Environmental Research, Laboratory for Molecular Ecotoxicology, Institute Ruder Boskovic, Zagreb, Croatia
| | - Luka Jukic
- Department for Marine and Environmental Research, Laboratory for Molecular Ecotoxicology, Institute Ruder Boskovic, Zagreb, Croatia
| | - Marta Popovic
- Department for Marine and Environmental Research, Laboratory for Molecular Ecotoxicology, Institute Ruder Boskovic, Zagreb, Croatia
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9
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Houdelet C, Blondeau-Bidet E, Estevez-Villar M, Mialhe X, Hermet S, Ruelle F, Dutto G, Bajek A, Bobe J, Geffroy B. Circulating MicroRNAs Indicative of Sex and Stress in the European Seabass (Dicentrarchus labrax): Toward the Identification of New Biomarkers. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2023; 25:749-762. [PMID: 37581865 DOI: 10.1007/s10126-023-10237-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 08/01/2023] [Indexed: 08/16/2023]
Abstract
MicroRNAs (miRNAs) constitute a new category of biomarkers. Studies on miRNAs in non-mammalian species have drastically increased in the last few years. Here, we explored the use of miRNAs as potential, poorly invasive markers, to identify sex and characterize acute stress in fish. The European seabass (Dicentrarchus labrax) was chosen as a model because of its rapid response to stress and its specific sex determination system, devoid of sexual chromosomes. We performed a small RNA-sequencing analysis in the blood plasma of male and female European seabass (mature and immature) as well as in the blood plasma of juveniles submitted to an acute stress and sampled throughout the recovery period (at 0 h, 0.5 h, 1.5 h and 6 h). In immature individuals, both miR-1388-3p and miR-7132a-5p were up-regulated in females, while miR-499a-5p was more abundant in males. However, no miRNAs were found to be differentially expressed between sexes in the blood plasma of mature individuals. For the acute stress analysis, five miRNAs (miR-155-5p, miR-200a-3p, miR-205-1-5p, miR-143-3p, and miR-223-3p) followed cortisol production over time. All miRNAs identified were tested and validated by RT-qPCR on sequenced samples. A complementary analysis on the 3'UTR sequences of the European seabass allowed to predict potential mRNA targets, some of them being particularly relevant regarding stress regulation, e.g., the glucocorticoid receptor 1 and the mineralocorticoid receptor. The present study provides new avenues and recommendations on the use of miRNAs as biomarkers of sex or stress of the European seabass, with potential application on other fish species.
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Affiliation(s)
- Camille Houdelet
- MARBEC Univ Montpellier, CNRS, Ifremer, IRD, Palavas-Les-Flots, France
| | | | | | - Xavier Mialhe
- MGX-Montpellier GenomiX, Institut de Génomique Fonctionnelle, Montpellier, France
| | - Sophie Hermet
- MARBEC Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - François Ruelle
- MARBEC Univ Montpellier, CNRS, Ifremer, IRD, Palavas-Les-Flots, France
| | - Gilbert Dutto
- MARBEC Univ Montpellier, CNRS, Ifremer, IRD, Palavas-Les-Flots, France
| | - Aline Bajek
- Ecloserie Marine de Gravelines-Ichtus, Voie des Enrochements, F-59820, Gravelines, France
| | - Julien Bobe
- INRAE, UR1037, Fish Physiology and Genomic laboratory, F-35000, Rennes, France
| | - Benjamin Geffroy
- MARBEC Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France.
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10
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Cui J, Wen D, Wang L, Meng C, Wang Y, Zhao Z, Wu C. CRISPR/Cas9-induced asap1a and asap1b co-knockout mutant zebrafish displayed abnormal embryonic development and impaired neutrophil migration. Gene Expr Patterns 2023; 49:119331. [PMID: 37390886 DOI: 10.1016/j.gep.2023.119331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/02/2023]
Abstract
ASAP1 (Arf-GAP with SH3 domain, the ankyrin repeat and the PH domain) is the GTPase activating protein of the small G protein Arf. To understand more about the physiological functions of ASAP1 in vivo, we chose to use the zebrafish as an animal model, and analyzed the characterization of asap1 using loss-of-function studies. Here, two isoforms in zebrafish, asap1a and asap1b, were found to be homologous to human ASAP1, and the gene knockout zebrafish lines for asap1a and asap1b were established using the CRISPR/Cas9 technique with different insertions and deletions of bases. Zebrafish with asap1a and asap1b co-knockout showed a significant reduction in survival and hatching rates, as well as an increase in malformation rates during the early stages of development, while the asap1a or asap1b single knockout mutants did not affect the growth and development of individual zebrafish. Exploring the gene expression compensation between asap1a and asap1b using qRT-PCR, we found that asap1b had increased expression when asap1a was knocked out, showing a clear compensatory effect against asap1a knockout; In turn, asap1a did not have detectable compensating expression after asap1b knockout. Furthermore, the co-knockout homozygous mutants displayed impaired neutrophil migration to Mycobacterium marinum infection, and showed an increased bacterial load. Together, these are the first inherited asap1a and/or asap1b mutant zebrafish lines by the CRISPR/Cas9 gene editing approach, and by serving as useful models, they can significantly contribute to better annotation and follow-up physiological studies of human ASAP1.
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Affiliation(s)
- Jia Cui
- Department of Microbiology, Changzhi Medical College, Changzhi, 046000, PR China; Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, PR China
| | - Da Wen
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, PR China
| | - Liqing Wang
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030012, PR China
| | - Chaoqun Meng
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, PR China
| | - Yuhuan Wang
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, PR China
| | - Zhonghua Zhao
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, PR China.
| | - Changxin Wu
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, PR China.
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11
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Yasuda T, Nakazawa T, Hirakawa K, Matsumoto I, Nagata K, Mori S, Igarashi K, Sagara H, Oda S, Mitani H. Retinal regeneration after injury induced by gamma-ray irradiation during early embryogenesis in medaka, Oryzias latipes. Int J Radiat Biol 2023; 100:131-138. [PMID: 37555698 DOI: 10.1080/09553002.2023.2242932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 07/06/2023] [Accepted: 07/21/2023] [Indexed: 08/10/2023]
Abstract
PURPOSE Zebrafish, a small fish model, exhibits a multipotent ability for retinal regeneration after damage throughout its lifetime. Compared with zebrafish, birds and mammals exhibit such a regenerative capacity only during the embryonic period, and this capacity decreases with age. In medaka, another small fish model that has also been used extensively in biological research, the retina's inner nuclear layer (INL) failed to regenerate after injury in the hatchling at eight days postfertilization (dpf). We characterized the regenerative process of the embryonic retina when the retinal injury occurred during the early embryonic period in medaka. METHODS We employed a 10 Gy dose of gamma-ray irradiation to initiate retinal injury in medaka embryos at 3 dpf and performed histopathological analyses up to 21 dpf. RESULTS One day after irradiation, numerous apoptotic neurons were observed in the INL; however, these neurons were rarely observed in the ciliary marginal zone and the photoreceptor layer. Numerous pyknotic cells were clustered in the irradiated retina until two days after irradiation. These disappeared four days after irradiation, but the abnormal bridging structures between the INL and ganglion cell layer (GCL) were present until 11 days after irradiation, and the neural layers were completely regenerated 18 days after irradiation. After gamma-ray irradiation, the spindle-like Müller glial cells in the INL became rounder but did not lose their ability to express SOX2. CONCLUSIONS Irradiated retina at 3 dpf of medaka embryos could be completely regenerated at 18 days after irradiation (21 dpf), although the abnormal layer structures bridging the INL and GCL were transiently formed in the retinas of all the irradiated embryos. Four days after irradiation, embryonic medaka Müller glia were reduced in number but maintained SOX2 expression as in nonirradiated embryos. This finding contrasts with previous reports that 8 dpf medaka larvae could not fully regenerate damaged retinas because of loss of SOX2 expression.
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Affiliation(s)
- Takako Yasuda
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
- Department of Chemical and Biological Sciences, Japan Women's University, Tokyo, Japan
| | - Takuya Nakazawa
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
| | - Kei Hirakawa
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
| | - Ikumi Matsumoto
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
| | - Kento Nagata
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
- Department of Radiation Effects Research, Institute for Radiological Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Shunta Mori
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
| | - Kento Igarashi
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
- Department of Applied Pharmacology, Kagoshima University, Kagoshima, Japan
| | - Hiroshi Sagara
- Medical Proteomics Laboratory, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Shoji Oda
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
| | - Hiroshi Mitani
- Department of Integrated Biosciences, Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Japan
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12
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Pan Q, Lu K, Luo J, Jiang Y, Xia B, Chen L, Wang M, Dai R, Chen T. Japanese medaka Olpax6.1 mutant as a potential model for spondylo-ocular syndrome. Funct Integr Genomics 2023; 23:168. [PMID: 37204625 DOI: 10.1007/s10142-023-01090-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/03/2023] [Accepted: 05/05/2023] [Indexed: 05/20/2023]
Abstract
pax6 is a canonic master gene for eye formation. Knockout of pax6 affects the development of craniofacial skeleton and eye in mice. Whether pax6 affects the development of spinal bone has not been reported yet. In the present study, we used CRISPR/Cas9 system to generate Olpax6.1 mutant in Japanese medaka. Phenotype analysis showed that ocular mutation caused by the Olpax6.1 mutation occurred in the homozygous mutant. The phenotype of heterozygotes is not significantly different from that of wild-type. In addition, knockout Olpax6.1 resulted in severe curvature of the spine in the homozygous F2 generation. Comparative transcriptome analysis and qRT-PCR revealed that the defective Olpax6.1 protein caused a decrease in the expression level of sp7, col10a1a, and bglap, while the expression level of xylt2 did not change significantly. The functional enrichment of differentially expressed genes (DEGs) using the Kyoto Encyclopedia of Genes and Genomes database showed that the DEGs between Olpax6.1 mutation and wild-type were enriched in p53 signaling pathway, extracellular matrix (ECM) -receptor interaction, et al. Our results indicated that the defective Olpax6.1 protein results in the reduction of sp7 expression level and the activation of p53 signaling pathway, which leads to a decrease in the expression of genes encoding ECM protein, such as collagen protein family and bone gamma-carboxyglutamate protein, which further inhibits bone development. Based on the phenotype and molecular mechanism of ocular mutation and spinal curvature induced by Olpax6.1 knockout, we believe that the Olpax6.1-/- mutant could be a potential model for the study of spondylo-ocular syndrome.
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Affiliation(s)
- Qihua Pan
- Fisheries College of Jimei University, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Xiamen, 361021, Fujian, China
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Ke Lu
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Junzhi Luo
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yuewen Jiang
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Bilin Xia
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Lei Chen
- Fisheries College of Jimei University, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Xiamen, 361021, Fujian, China
| | - Mengyang Wang
- Fisheries College of Jimei University, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Xiamen, 361021, Fujian, China
| | - Ronggui Dai
- Fisheries College of Jimei University, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Xiamen, 361021, Fujian, China
| | - Tiansheng Chen
- Fisheries College of Jimei University, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Xiamen, 361021, Fujian, China.
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
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13
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Widelski J, Kasica N, Maciąg M, Luca SV, Budzyńska B, Fondai D, Podlasz P, Skalicka-Woźniak K. Simple Coumarins from Peucedanum luxurians Fruits: Evaluation of Anxiolytic Activity and Influence on Gene Expression Related to Anxiety in Zebrafish Model. Int J Mol Sci 2023; 24:ijms24108693. [PMID: 37240050 DOI: 10.3390/ijms24108693] [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: 03/21/2023] [Revised: 04/30/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Anxiety is one of the most common central nervous system disorders, affecting at least one-quarter of the worldwide population. The medications routinely used for the treatment of anxiety (mainly benzodiazepines) are a cause of addiction and are characterized by many undesirable side effects. Thus, there is an important and urgent need for screening and finding novel drug candidates that can be used in the prevention or treatment of anxiety. Simple coumarins usually do not show side effects, or these effects are much lower than in the case of synthetic drugs acting on the central nervous system (CNS). This study aimed to evaluate the anxiolytic activity of three simple coumarins from Peucedanum luxurians Tamamsch, namely officinalin, stenocarpin isobutyrate, and officinalin isobutyrate, in a 5 dpf larval zebrafish model. Moreover, the influence of the tested coumarins on the expression of genes involved in the neural activity (c-fos, bdnf) or dopaminergic (th1), serotoninergic (htr1Aa, htr1b, htr2b), GABA-ergic (gabarapa, gabarapb), enkephalinergic (penka, penkb), and galaninergic (galn) neurotransmission was assessed by quantitative PCR. All tested coumarins showed significant anxiolytic activity, with officinalin as the most potent compound. The presence of a free hydroxyl group at position C-7 and the lack of methoxy moiety at position C-8 might be key structural features responsible for the observed effects. In addition, officinalin and its isobutyrate upregulated the expression of genes involved in neurotransmission and decreased the expression of genes connected with neural activity. Therefore, the coumarins from P. luxurians might be considered as promising drug candidates for the therapy of anxiety and related disorders.
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Affiliation(s)
- Jarosław Widelski
- Medicinal Plant Unit, Department of Pharmacognosy, Medical University of Lublin, 20-093 Lublin, Poland
| | - Natalia Kasica
- Department of Animal Anatomy, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
| | - Monika Maciąg
- Independent Laboratory of Behavioral Studies, Medical University of Lublin, 20-093 Lublin, Poland
| | - Simon Vlad Luca
- Biothermodynamics, TUM School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
- Department of Pharmacognosy, Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Iasi, Romania
| | - Barbara Budzyńska
- Independent Laboratory of Behavioral Studies, Medical University of Lublin, 20-093 Lublin, Poland
| | - Dafina Fondai
- Department of Pharmacy, Faculty of Medicine, University of Prishtina, 10000 Prishtina, Kosovo
| | - Piotr Podlasz
- Department of Pathophysiology, Forensic Veterinary Medicine and Administration, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
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Lee Y, Cho S, Park K, Kim T, Kim J, Ryu DY, Hong J. Potential lifetime effects caused by cellular uptake of nanoplastics: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121668. [PMID: 37087090 DOI: 10.1016/j.envpol.2023.121668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
Plastics have been used for about 100 years, and daily-use products composed of plastics are now prevalent. As a result, humans are very easily exposed to the plastic particles generated from the daily-use plastics. However, studies on cellular uptake of nanoplastics in "human cells" have only recently begun to attract attention. In previous studies, definitions of nanoplastics and microplastics were vague, but recently, they have been considered to be different and are being studied separately. However, nanoplastics, unlike plastic particles of other sizes such as macro- and microplastics, can be absorbed by human cells, and thus can cause various risks such as cytotoxicity, inflammation, oxidative stress, and even diseases such as cancer82, 83. and diabetes (Fan et al., 2022; Wang et al., 2023). Thus, in this review, we defined microplastics and nanoplastics to be different and described the potential risks of nanoplastics to human caused by cellular uptake according to their diverse factors. In addition, during and following plastic product usage a substantial number of fragments of different sizes can be generated, including nanoplastics. Fragmentation of microplastics into nanoplastics may also occur during ingestion and inhalation, which can potentially cause long-term hazards to human health. However, there are still few in vivo studies conducted on the health effect of nanoplastics ingestion and inhalation.
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Affiliation(s)
- Yoojin Lee
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Seongeun Cho
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Kyungtae Park
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Taihyun Kim
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jiyu Kim
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Du-Yeol Ryu
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jinkee Hong
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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15
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Oxidative Stress Parameters and Morphological Changes in Japanese Medaka ( Oryzias latipes) after Acute Exposure to OA-Group Toxins. LIFE (BASEL, SWITZERLAND) 2022; 13:life13010015. [PMID: 36675964 PMCID: PMC9867479 DOI: 10.3390/life13010015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Toxins of the OA-group (okadaic acid, OA; dinophysistoxin-1, DTX-1) are the most prevalent in the fjords of southern Chile, and are characterized by their potential harmful effects on aquatic organisms. The present study was carried out to determine the acute toxicity of OA/DTX-1 on oxidative stress parameters in medaka (Oryzias latipes) larvae. Medaka larvae were exposed to different concentrations (1.0-30 μg/mL) of OA/DTX-1 for 96 h to determine the median lethal concentration. The LC50 value after 96 h was 23.5 μg/mL for OA and 16.3 μg/mL for DTX-1 (95% confidence interval, CI was 22.56, 24.43 for OA and 15.42, 17.17 for DTX-1). Subsequently, larvae at 121 hpf were exposed to acute doses (10, 15 and 20 μg/mL OA and 5.0, 7.5 and 11.0 μg/mL DTX-1) for 96 h and every 6 h the corresponding group of larvae was euthanized in order to measure the activity levels of biochemical biomarkers (superoxide dismutase, SOD; catalase, CAT; glutathione peroxidase, GPx; and glutathione reductase, GR) as well as the levels of oxidative damage (malondialdehyde, MDA; and carbonyl content). Our results showed that acute doses caused a decrease in SOD (≈25%), CAT (≈55%), and GPx and GR (≈35%) activities, while MDA levels and carbonyl content increased significantly at the same OA/DTX-1 concentrations. This study shows that acute exposure to OA-group toxins tends to simultaneously alter the oxidative parameters that induce sustained morphological damage in medaka larvae. DTX-1 stands out as producing greater inhibition of the antioxidant system, leading to increased oxidative damage in medaka larvae. Considering that DTX-1 is the most prevalent HAB toxin in southern Chile, these findings raise the possibility of an important environmental impact on the larval stages of different fish species present in the southern fjords of the South Pacific.
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16
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Chemical Constituents and Anti-Angiogenic Principles from a Marine Algicolous Penicillium sumatraense SC29. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248940. [PMID: 36558070 PMCID: PMC9781389 DOI: 10.3390/molecules27248940] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/07/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
In this study, a marine brown alga Sargassum cristaefolium-derived fungal strain, Penicillium sumatraense SC29, was isolated and identified. Column chromatography of the extracts from liquid fermented products of the fungal strain was carried out and led to the isolation of six compounds. Their structures were elucidated by spectroscopic analysis and supported by single-crystal X-ray diffraction as four previously undescribed (R)-3-hydroxybutyric acid and glycolic acid derivatives, namely penisterines A (1) and C-E (3-5) and penisterine A methyl ether (2), isolated for the first time from natural resources, along with (R)-3-hydroxybutyric acid (6). Of these compounds identified, penisterine E (5) was a unique 6/6/6-tricyclic ether with an acetal and two hemiketal functionalities. All the isolates were subjected to in vitro anti-angiogenic assays using a human endothelial progenitor cell (EPCs) platform. Among these, penisterine D (4) inhibited EPC growth, migration, and tube formation without any cytotoxic effect. Further, in in vivo bioassays, the percentages of angiogenesis of compound 3 on Tg (fli1:EGFP) transgenic zebrafish were 54% and 37% as the treated concentration increased from 10.2 to 20.4 µg/mL, respectively, and the percentages of angiogenesis of compound 4 were 52% and 41% as the treated concentration increased from 8.6 to 17.2 µg/mL, respectively. The anti-angiogenic activity of penisterine D (4) makes it an attractive candidate for further preclinical investigation.
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17
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Optical transparency and label-free vessel imaging of zebrafish larvae in shortwave infrared range as a tool for prolonged studying of cardiovascular system development. Sci Rep 2022; 12:20884. [PMID: 36463350 PMCID: PMC9719527 DOI: 10.1038/s41598-022-25386-w] [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] [Received: 08/01/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022] Open
Abstract
Optical techniques are utilized for the non-invasive analysis of the zebrafish cardiovascular system at early developmental stages. Being based mainly on conventional optical microscopy components and image sensors, the wavelength range of the collected and analyzed light is not out of the scope of 400-900 nm. In this paper, we compared the non-invasive optical approaches utilizing visible and near infrared range (VISNIR) 400-1000 and the shortwave infrared range (SWIR) 900-1700 nm. The transmittance spectra of zebrafish tissues were measured in these wavelength ranges, then vessel maps, heart rates, and blood flow velocities were calculated from data in VISNIR and SWIR. An increased pigment pattern transparency was registered in SWIR, while the heart and vessel detection quality in this range is not inferior to VISNIR. Obtained results indicate an increased efficiency of SWIR imaging for monitoring heart function and hemodynamic analysis of zebrafish embryos and larvae and suggest a prolonged registration period in this range compared to other optical techniques that are limited by pigment pattern development.
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18
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Wu X, Yang X, Varier KM, Rao Q, Song J, Huang L, Huang Y, Gajendran B, He Z, Yuan C, Li Y. Synthetic flavagline derivative 1-chloroacetylrocaglaol promotes apoptosis in K562 erythroleukemia cells through miR-17-92 cluster genes. Arch Pharm (Weinheim) 2022; 355:e2200367. [PMID: 36216575 DOI: 10.1002/ardp.202200367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 11/07/2022]
Abstract
Chronic myeloid leukemia accounts for human deaths worldwide and could enhance sevenfold by 2050. Thus, the treatment regimen for this disorder is highly crucial at this time. Flavaglines are a natural class of cyclopentane benzofurans exhibiting various bioactivities like anticancer action. Despite the antiproliferative activity of flavaglines against diverse cancer cells, their roles and mechanism of action in chronic myeloid leukemia (CML) remain poorly understood. Thus, this study examines the antiproliferative effect of a newly synthesized flavagline derivative, 1-chloracetylrocaglaol (A2074), on erythroleukemia K562 cells and the zebrafish xenograft model. The study revealed that A2074 could inhibit proliferation, promote apoptosis, and boost megakaryocyte differentiation of K562 cells. This flavagline downregulated c-MYC and miR-17-92 cluster genes, targeting upregulation of the apoptotic protein Bcl-2-like protein 11 (BIM). The work uncovered a critical role of the c-MYC-miR-17-92-BIM axis in the growth and survival of CML cells.
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Affiliation(s)
- Xijun Wu
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Xinmei Yang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Krishnapriya M Varier
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Qing Rao
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Jingrui Song
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Lei Huang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Yubing Huang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Babu Gajendran
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Zhixu He
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China
| | - Chunmao Yuan
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
| | - Yanmei Li
- State Key Laboratory for Functions and Applications of Medicinal Plants, Department of Immunology, School of Pharmaceutical Sciences, The Affiliated Jinyang Hospital, Guizhou Medical University, Guiyang, China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, China
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19
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Lucon-Xiccato T, Montalbano G, Frigato E, Loosli F, Foulkes NS, Bertolucci C. Medaka as a model for seasonal plasticity: Photoperiod-mediated changes in behaviour, cognition, and hormones. Horm Behav 2022; 145:105244. [PMID: 35988451 DOI: 10.1016/j.yhbeh.2022.105244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 06/02/2022] [Accepted: 08/08/2022] [Indexed: 11/25/2022]
Abstract
Teleosts display the highest level of brain plasticity of all vertebrates. Yet we still know little about how seasonality affects fish behaviour and the underlying cognitive mechanisms since the common neurobehavioral fish models are native to tropical environments where seasonal variation is absent or reduced. The medaka, Oryzias latipes, which inhabits temperate zone habitats, represents a promising model in this context given its large phenotypic changes associated with seasonality and the possibility to induce seasonal plasticity by only manipulating photoperiod. Here, we report the first extended investigation of seasonal plasticity in medaka behaviour and cognition, as well as the potential underlying molecular mechanisms. We compared medaka exposed to summer photoperiod (16 h light:8 h dark) with medaka exposed to winter photoperiod (8 h light:16 h dark), and detected substantial differences. Medaka were more active and less social in summer photoperiod conditions, two effects that emerged in the second half of an open-field and a sociability test, respectively, and might be at least in part related to habituation to the testing apparatus. Moreover, the cognitive phenotype was significantly affected: in the early response to a social stimulus, brain functional lateralisation shifted between the two hemispheres under the two photoperiod conditions, and inhibitory and discrimination learning performance were reduced in summer conditions. Finally, the expression of genes encoding key pituitary hormones, tshß and gh, and of the tshß regulatory transcription factor tef in the brain was increased in summer photoperiod conditions. This work reveals remarkable behavioural and cognitive phenotypic plasticity in response to photoperiod in medaka, and suggests a potential regulatory role for the same hormones involved in seasonal plasticity of other vertebrates.
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Affiliation(s)
- Tyrone Lucon-Xiccato
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Giulia Montalbano
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Elena Frigato
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Felix Loosli
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Nicholas S Foulkes
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Cristiano Bertolucci
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.
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20
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Sabharwal A, Campbell JM, Schwab TL, WareJoncas Z, Wishman MD, Ata H, Liu W, Ichino N, Hunter DE, Bergren JD, Urban MD, Urban RM, Holmberg SR, Kar B, Cook A, Ding Y, Xu X, Clark KJ, Ekker SC. A Primer Genetic Toolkit for Exploring Mitochondrial Biology and Disease Using Zebrafish. Genes (Basel) 2022; 13:1317. [PMID: 35893052 PMCID: PMC9331066 DOI: 10.3390/genes13081317] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/14/2022] [Accepted: 07/19/2022] [Indexed: 02/04/2023] Open
Abstract
Mitochondria are a dynamic eukaryotic innovation that play diverse roles in biology and disease. The mitochondrial genome is remarkably conserved in all vertebrates, encoding the same 37-gene set and overall genomic structure, ranging from 16,596 base pairs (bp) in the teleost zebrafish (Danio rerio) to 16,569 bp in humans. Mitochondrial disorders are amongst the most prevalent inherited diseases, affecting roughly 1 in every 5000 individuals. Currently, few effective treatments exist for those with mitochondrial ailments, representing a major unmet patient need. Mitochondrial dysfunction is also a common component of a wide variety of other human illnesses, ranging from neurodegenerative disorders such as Huntington's disease and Parkinson's disease to autoimmune illnesses such as multiple sclerosis and rheumatoid arthritis. The electron transport chain (ETC) component of mitochondria is critical for mitochondrial biology and defects can lead to many mitochondrial disease symptoms. Here, we present a publicly available collection of genetic mutants created in highly conserved, nuclear-encoded mitochondrial genes in Danio rerio. The zebrafish system represents a potentially powerful new opportunity for the study of mitochondrial biology and disease due to the large number of orthologous genes shared with humans and the many advanced features of this model system, from genetics to imaging. This collection includes 15 mutant lines in 13 different genes created through locus-specific gene editing to induce frameshift or splice acceptor mutations, leading to predicted protein truncation during translation. Additionally, included are 11 lines created by the random insertion of the gene-breaking transposon (GBT) protein trap cassette. All these targeted mutant alleles truncate conserved domains of genes critical to the proper function of the ETC or genes that have been implicated in human mitochondrial disease. This collection is designed to accelerate the use of zebrafish to study many different aspects of mitochondrial function to widen our understanding of their role in biology and human disease.
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Affiliation(s)
- Ankit Sabharwal
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Jarryd M. Campbell
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Tanya L. Schwab
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Zachary WareJoncas
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Mark D. Wishman
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Hirotaka Ata
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Wiebin Liu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
- Division of Cardiovascular Diseases, Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
| | - Noriko Ichino
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Danielle E. Hunter
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Jake D. Bergren
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Mark D. Urban
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Rhianna M. Urban
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Shannon R. Holmberg
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Bibekananda Kar
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Alex Cook
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Yonghe Ding
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
- Division of Cardiovascular Diseases, Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
| | - Xiaolei Xu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
- Division of Cardiovascular Diseases, Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
| | - Karl J. Clark
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
| | - Stephen C. Ekker
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA; (A.S.); (J.M.C.); (T.L.S.); (Z.W.); (M.D.W.); (H.A.); (W.L.); (N.I.); (D.E.H.); (J.D.B.); (M.D.U.); (R.M.U.); (S.R.H.); (B.K.); (A.C.); (Y.D.); (X.X.); (K.J.C.)
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21
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Quantification of Idua Enzymatic Activity Combined with Observation of Phenotypic Change in Zebrafish Embryos Provide a Preliminary Assessment of Mutated idua Correlated with Mucopolysaccharidosis Type I. J Pers Med 2022; 12:jpm12081199. [PMID: 35893292 PMCID: PMC9332586 DOI: 10.3390/jpm12081199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/12/2022] [Accepted: 07/22/2022] [Indexed: 11/22/2022] Open
Abstract
Mucopolysaccharidosis type I (MPS I) is an inherited autosomal recessive disease resulting from mutation of the α-l-Iduronidase (IDUA) gene. New unknown mutated nucleotides of idua have increasingly been discovered in newborn screening, and remain to be elucidated. In this study, we found that the z-Idua enzymatic activity of zebrafish idua-knockdown embryos was reduced, resulting in the accumulation of undegradable metabolite of heparin sulfate, as well as increased mortality and defective phenotypes similar to some symptoms of human MPS I. After microinjecting mutated z-idua-L346R, -T364M, -E398-deleted, and -E540-frameshifted mRNAs, corresponding to mutated human IDUA associated with MPS I, into zebrafish embryos, no increase in z-Idua enzymatic activity, except of z-idua-E540-frameshift-injected embryos, was noted compared with endogenous z-Idua of untreated embryos. Defective phenotypes were observed in the z-idua-L346R-injected embryos, suggesting that failed enzymatic activity of mutated z-Idua-L346R might have a dominant negative effect on endogenous z-Idua function. However, defective phenotypes were not observed in the z-idua-E540-frameshifted-mRNA-injected embryos, which provided partial enzymatic activity. Based on these results, we suggest that the z-Idua enzyme activity assay combined with phenotypic observation of mutated-idua-injected zebrafish embryos could serve as an alternative platform for a preliminary assessment of mutated idua not yet characterized for their role in MPS I.
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22
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Dynamics of the Gut Microbiome and Transcriptome in Korea Native Ricefish (Oryzias latipes) during Chronic Antibiotic Exposure. Genes (Basel) 2022; 13:genes13071243. [PMID: 35886026 PMCID: PMC9322331 DOI: 10.3390/genes13071243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 02/01/2023] Open
Abstract
Antibiotics have been widely used to inhibit microbial growth and to control bacterial infection; however, they can trigger an imbalance in the gut flora of the host and dysregulate the host gene regulatory system when discharged into the aquatic environment. We investigated the effects of chronic exposure to a low concentration of erythromycin and ampicillin, focusing on gut microbiome and global gene expression profiles from Korea native ricefish (Oryzias latipes). The proportion of Proteobacteria (especially the opportunistic pathogen Aeromonas veronii) was significantly increased in the ricefish under the chronic exposure to erythromycin and ampicillin, whereas that of other bacterial phyla (i.e., Fusobacteria) decreased. In addition, the expression of genes involved in immune responses such as chemokines and immunocyte chemotaxis was significantly influenced in ricefish in the aquatic environment with antibiotics present. These results show that the internal microbial flora and the host gene expression are susceptible even at a low concentration of chronic antibiotics in the environment, supporting the importance of the appropriate use of antibiotic dose to maintain the sustainable and healthy aquaculture industry and water ecosystem.
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23
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Lucon-Xiccato T, Loosli F, Conti F, Foulkes NS, Bertolucci C. Comparison of anxiety-like and social behaviour in medaka and zebrafish. Sci Rep 2022; 12:10926. [PMID: 35764691 PMCID: PMC9239998 DOI: 10.1038/s41598-022-14978-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/15/2022] [Indexed: 11/09/2022] Open
Abstract
The medaka, Oryzias latipes, is rapidly growing in importance as a model in behavioural research. However, our knowledge of its behaviour is still incomplete. In this study, we analysed the performance of medaka in 3 tests for anxiety-like behaviour (open-field test, scototaxis test, and diving test) and in 3 sociability tests (shoaling test with live stimuli, octagonal mirror test, and a modified shoaling test with mirror stimulus). The behavioural response of medaka was qualitatively similar to that observed in other teleosts in the open-field test (thigmotaxis), and in 2 sociability tests, the shoaling test and in the octagonal mirror test (attraction towards the social stimulus). In the remaining tests, medaka did not show typical anxiety (i.e., avoidance of light environments and preference for swimming at the bottom of the aquarium) and social responses (attraction towards the social stimulus). As a reference, we compared the behaviour of the medaka to that of a teleost species with well-studied behaviour, the zebrafish, tested under the same conditions. This interspecies comparison indicates several quantitative and qualitative differences across all tests, providing further evidence that the medaka responds differently to the experimental settings compared to other fish models.
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Affiliation(s)
- Tyrone Lucon-Xiccato
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Felix Loosli
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Francesca Conti
- Department of Physiology, Faculty of Biology, University of Murcia, Murcia, Spain
| | - Nicholas S Foulkes
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany.
| | - Cristiano Bertolucci
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
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24
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Quadri M, Marconi A, Sandhu SK, Kiss A, Efimova T, Palazzo E. Investigating Cutaneous Squamous Cell Carcinoma in vitro and in vivo: Novel 3D Tools and Animal Models. Front Med (Lausanne) 2022; 9:875517. [PMID: 35646967 PMCID: PMC9131878 DOI: 10.3389/fmed.2022.875517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 04/19/2022] [Indexed: 12/07/2022] Open
Abstract
Cutaneous Squamous Cell Carcinoma (cSCC) represents the second most common type of skin cancer, which incidence is continuously increasing worldwide. Given its high frequency, cSCC represents a major public health problem. Therefore, to provide the best patients’ care, it is necessary having a detailed understanding of the molecular processes underlying cSCC development, progression, and invasion. Extensive efforts have been made in developing new models allowing to study the molecular pathogenesis of solid tumors, including cSCC tumors. Traditionally, in vitro studies were performed with cells grown in a two-dimensional context, which, however, does not represent the complexity of tumor in vivo. In the recent years, new in vitro models have been developed aiming to mimic the three-dimensionality (3D) of the tumor, allowing the evaluation of tumor cell-cell and tumor-microenvironment interaction in an in vivo-like setting. These models include spheroids, organotypic cultures, skin reconstructs and organoids. Although 3D models demonstrate high potential to enhance the overall knowledge in cancer research, they lack systemic components which may be solved only by using animal models. Zebrafish is emerging as an alternative xenotransplant model in cancer research, offering a high-throughput approach for drug screening and real-time in vivo imaging to study cell invasion. Moreover, several categories of mouse models were developed for pre-clinical purpose, including xeno- and syngeneic transplantation models, autochthonous models of chemically or UV-induced skin squamous carcinogenesis, and genetically engineered mouse models (GEMMs) of cSCC. These models have been instrumental in examining the molecular mechanisms of cSCC and drug response in an in vivo setting. The present review proposes an overview of in vitro, particularly 3D, and in vivo models and their application in cutaneous SCC research.
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Affiliation(s)
- Marika Quadri
- DermoLAB, Department of Surgical, Medical, Dental and Morphological Science, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessandra Marconi
- DermoLAB, Department of Surgical, Medical, Dental and Morphological Science, University of Modena and Reggio Emilia, Modena, Italy
| | - Simran K Sandhu
- Department of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States.,The George Washington Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, United States.,Department of Dermatology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Alexi Kiss
- Department of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States.,The George Washington Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Tatiana Efimova
- Department of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States.,The George Washington Cancer Center, George Washington University School of Medicine and Health Sciences, Washington, DC, United States.,Department of Dermatology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Elisabetta Palazzo
- DermoLAB, Department of Surgical, Medical, Dental and Morphological Science, University of Modena and Reggio Emilia, Modena, Italy
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25
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Organophosphorus Pesticides as Modulating Substances of Inflammation through the Cholinergic Pathway. Int J Mol Sci 2022; 23:ijms23094523. [PMID: 35562914 PMCID: PMC9104626 DOI: 10.3390/ijms23094523] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 01/27/2023] Open
Abstract
Organophosphorus pesticides (OPs) are widespread insecticides used for pest control in agricultural activities and the control of the vectors of human and animal diseases. However, OPs’ neurotoxic mechanism involves cholinergic components, which, beyond being involved in the transmission of neuronal signals, also influence the activity of cytokines and other pro-inflammatory molecules; thus, acute and chronic exposure to OPs may be related to the development of chronic degenerative pathologies and other inflammatory diseases. The present article reviews and discusses the experimental evidence linking inflammatory process with OP-induced cholinergic dysregulation, emphasizing the molecular mechanisms related to the role of cytokines and cellular alterations in humans and other animal models, and possible therapeutic targets to inhibit inflammation.
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Cerebroventricular Injection of Pgk1 Attenuates MPTP-Induced Neuronal Toxicity in Dopaminergic Cells in Zebrafish Brain in a Glycolysis-Independent Manner. Int J Mol Sci 2022; 23:ijms23084150. [PMID: 35456967 PMCID: PMC9025024 DOI: 10.3390/ijms23084150] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/31/2022] [Accepted: 04/05/2022] [Indexed: 12/26/2022] Open
Abstract
Parkinson’s disease (PD) is characterized by the degeneration of dopaminergic neurons. While extracellular Pgk1 (ePgk1) is reported to promote neurite outgrowth, it remains unclear if it can affect the survival of dopaminergic cells. To address this, we employed cerebroventricular microinjection (CVMI) to deliver Pgk1 into the brain of larvae and adult zebrafish treated with methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) as a PD-like model. The number of dopamine-producing cells in ventral diencephalon clusters of Pgk1-injected, MPTP-treated embryos increased over that of MPTP-treated embryos. Swimming distances of Pgk1-injected, MPTP-treated larvae and adult zebrafish were much longer compared to MPTP-treated samples. The effect of injected Pgk1 on both dopamine-producing cells and locomotion was time- and dose-dependent. Indeed, injected Pgk1 could be detected, located on dopamine neurons. When the glycolytic mutant Pgk1, Pgk1-T378P, was injected into the brain of MPTP-treated zebrafish groups, the protective ability of dopaminergic neurons did not differ from that of normal Pgk1. Therefore, ePgk1 is functionally independent from intracellular Pgk1 serving as an energy supplier. Furthermore, when Pgk1 was added to the culture medium for culturing dopamine-like SH-SY5Y cells, it could reduce the ROS pathway and apoptosis caused by the neurotoxin MPP+. These results show that ePgk1 benefits the survival of dopamine-producing cells and decreases neurotoxin damage.
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27
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Hu ZZ, Ma TX, Sha XM, Zhang L, Tu ZC. Improving tyrosinase inhibitory activity of grass carp fish scale gelatin hydrolysate by gastrointestinal digestion: Purification, identification and action mechanism. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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The Geometric World of Fishes: A Synthesis on Spatial Reorientation in Teleosts. Animals (Basel) 2022; 12:ani12070881. [PMID: 35405870 PMCID: PMC8997125 DOI: 10.3390/ani12070881] [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: 02/07/2022] [Revised: 03/09/2022] [Accepted: 03/23/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Animals inhabit species-specific ecological environments and acquire knowledge about the surrounding space to adaptively behave and move within it. Spatial cognition is important for achieving basic survival actions such as detecting the position of a food site or a mate, going back home or hiding from a predator. As such, animals possess multiple mechanisms for spatial mapping, including the use of individual reference points or positional relationships among them. One such mechanism allows disoriented animals to navigate according to the distinctive geometry of the environment: within a rectangular enclosure, they can simply reorient by using “metrics” (e.g., longer/shorter, closer/farther) and “sense” (e.g., left, right) attributes. Navigation based on the environmental geometry has been widely investigated across the animal kingdom, including fishes. In particular, research on teleost fish has contributed to the general understanding of geometric representations through both visual and extra-visual modalities, even vertebrates phylogenetically remote from mammals. Abstract Fishes navigate through underwater environments with remarkable spatial precision and memory. Freshwater and seawater species make use of several orientation strategies for adaptative behavior that is on par with terrestrial organisms, and research on cognitive mapping and landmark use in fish have shown that relational and associative spatial learning guide goal-directed navigation not only in terrestrial but also in aquatic habitats. In the past thirty years, researchers explored spatial cognition in fishes in relation to the use of environmental geometry, perhaps because of the scientific value to compare them with land-dwelling animals. Geometric navigation involves the encoding of macrostructural characteristics of space, which are based on the Euclidean concepts of “points”, “surfaces”, and “boundaries”. The current review aims to inspect the extant literature on navigation by geometry in fishes, emphasizing both the recruitment of visual/extra-visual strategies and the nature of the behavioral task on orientation performance.
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Lama R, Pereiro P, Figueras A, Novoa B. Zebrafish as a Vertebrate Model for Studying Nodavirus Infections. Front Immunol 2022; 13:863096. [PMID: 35401537 PMCID: PMC8987509 DOI: 10.3389/fimmu.2022.863096] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/02/2022] [Indexed: 11/13/2022] Open
Abstract
Nervous necrosis virus (NNV) is a neurotropic pathogenic virus affecting a multitude of marine and freshwater fish species that has a high economic impact on aquaculture farms worldwide. Therefore, the development of new tools and strategies aimed at reducing the mortality caused by this virus is a pivotal need. Although zebrafish is not considered a natural host for NNV, the numerous experimental advantages of this species make zebrafish an attractive model for studying different aspects of the disease caused by NNV, viral encephalopathy and retinopathy (VER). In this work, we established the best way and age to infect zebrafish larvae with NNV, obtaining significant mortalities in 3-day-postfertilization larvae when the virus was inoculated directly into the brain or by intramuscular microinjection. As occurs in naturally susceptible fish species, we confirmed that after intramuscular injection the virus was able to migrate to the central nervous system (CNS). As expected, due to the severe damage that this virus causes to the CNS, alterations in the swimming behavior of the zebrafish larvae were also observed. Taking advantage of the existence of transgenic fluorescent zebrafish lines, we were able to track the migration of different innate immune cells, mainly neutrophils, to the site of infection with NNV via the brain. However, we did not observe colocalization between the viral particles and neutrophils. RNA-Seq analysis of NNV-infected and uninfected larvae at 1, 3 and 5 days postinfection (dpi) revealed a powerful modulation of the antiviral immune response, especially at 5 dpi. We found that this response was dominated by, though not restricted to, the type I interferon system, the major defence mechanism in the innate immune response against viral pathogens. Therefore, as zebrafish larvae are able to develop the main characteristic of NNV infection and respond with an efficient immune arsenal, we confirmed the suitability of zebrafish larvae for modelling VER disease and studying different aspects of NNV pathogenesis, immune response and screening of antiviral drugs.
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Xu W, Li H, Peng L, Pu L, Xiang S, Li Y, Tao L, Liu W, Liu J, Xiao Y, Liu S. Fish Pluripotent Stem-Like Cell Line Induced by Small-Molecule Compounds From Caudal Fin and its Developmental Potentiality. Front Cell Dev Biol 2022; 9:817779. [PMID: 35127728 PMCID: PMC8811452 DOI: 10.3389/fcell.2021.817779] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/31/2021] [Indexed: 12/26/2022] Open
Abstract
The technique of induced pluripotent stem cells has significant application value in breeding and preserving the genetic integrity of fish species. However, it is still unclear whether the chemically induced pluripotent stem cells can be induced from non-mammalian cells or not. In this article, we first verify that fibroblasts of fish can be chemically reprogrammed into pluripotent stem cells. These induced pluripotent stem-like cells possess features of colony morphology, expression of pluripotent marker genes, formation of embryoid bodies, teratoma formation, and the potential to differentiate into germ cell-like cells in vitro. Our findings will offer a new way to generate induced pluripotent stem cells in teleost fish and a unique opportunity to breed commercial fish and even save endangered fish species.
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Affiliation(s)
- Wenting Xu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Huajin Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Liangyue Peng
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
- *Correspondence: Liangyue Peng, ; Yamei Xiao, ; Shaojun Liu,
| | - Liyu Pu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Sijia Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yue Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Leiting Tao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Wenbin Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Jinhui Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yamei Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
- *Correspondence: Liangyue Peng, ; Yamei Xiao, ; Shaojun Liu,
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
- *Correspondence: Liangyue Peng, ; Yamei Xiao, ; Shaojun Liu,
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Naisbett-Jones LC, Lohmann KJ. Magnetoreception and magnetic navigation in fishes: a half century of discovery. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2022; 208:19-40. [PMID: 35031832 DOI: 10.1007/s00359-021-01527-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 01/15/2023]
Abstract
As the largest and most diverse vertebrate group on the planet, fishes have evolved an impressive array of sensory abilities to overcome the challenges associated with navigating the aquatic realm. Among these, the ability to detect Earth's magnetic field, or magnetoreception, is phylogenetically widespread and used by fish to guide movements over a wide range of spatial scales ranging from local movements to transoceanic migrations. A proliferation of recent studies, particularly in salmonids, has revealed that fish can exploit Earth's magnetic field not only as a source of directional information for maintaining consistent headings, but also as a kind of map for determining location at sea and for returning to natal areas. Despite significant advances, much about magnetoreception in fishes remains enigmatic. How fish detect magnetic fields remains unknown and our understanding of the evolutionary origins of vertebrate magnetoreception would benefit greatly from studies that include a wider array of fish taxa. The rich diversity of life-history characteristics that fishes exhibit, the wide variety of environments they inhabit, and their suitability for manipulative studies, make fishes promising subjects for magnetoreception studies.
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Affiliation(s)
| | - Kenneth J Lohmann
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27599, USA
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Adewoyin M, Teoh SL, Azmai MNA, Nasruddin NS. Exploiting the Differences Between Zebrafish and Medaka in Biological Research: A Complementary Approach. PHARMACOPHORE 2022. [DOI: 10.51847/a5qhctavdz] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Murray KN, Clark TS, Kebus MJ, Kent ML. Specific Pathogen Free - A review of strategies in agriculture, aquaculture, and laboratory mammals and how they inform new recommendations for laboratory zebrafish. Res Vet Sci 2021; 142:78-93. [PMID: 34864461 PMCID: PMC9120263 DOI: 10.1016/j.rvsc.2021.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/04/2021] [Accepted: 11/16/2021] [Indexed: 10/19/2022]
Abstract
Specific pathogen-free (SPF) animals are bred and managed to exclude pathogens associated with significant morbidity or mortality that may secondarily pose a risk to public health, food safety and food security, and research replicability. Generating and maintaining SPF animals requires detailed biosecurity planning for control of housing, environmental, and husbandry factors and a history of regimented pathogen testing. Successful programs involve comprehensive risk analysis and exclusion protocols that are rooted in a thorough understanding of pathogen lifecycle and modes of transmission. In this manuscript we review the current state of SPF in domestic agriculture (pigs and poultry), aquaculture (salmonids and shrimp), and small laboratory mammals. As the use of laboratory fish, especially zebrafish (Danio rerio), as models of human disease is expanding exponentially, it is prudent to define standards for SPF in this field. We use the guiding principles from other SPF industries and evaluate zebrafish pathogens against criteria to be on an SPF list, to propose recommendations for establishing and maintaining SPF laboratory zebrafish.
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Affiliation(s)
- Katrina N Murray
- Zebrafish International Resource Center, University of Oregon, Eugene, OR 97403, USA.
| | - Tannia S Clark
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Myron J Kebus
- Wisconsin Department of Agriculture, Trade and Consumer Protection, Madison, WI 53708, USA
| | - Michael L Kent
- Zebrafish International Resource Center, University of Oregon, Eugene, OR 97403, USA; Department of Biomedical Sciences, Oregon State University, Corvallis, OR 97331, USA; Department of Microbiology, Oregon State University, Corvallis, OR 97331, USA
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Vissio PG, Di Yorio MP, Pérez-Sirkin DI, Somoza GM, Tsutsui K, Sallemi JE. Developmental aspects of the hypothalamic-pituitary network related to reproduction in teleost fish. Front Neuroendocrinol 2021; 63:100948. [PMID: 34678303 DOI: 10.1016/j.yfrne.2021.100948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/27/2021] [Accepted: 10/04/2021] [Indexed: 12/11/2022]
Abstract
The hypothalamic-pituitary-gonadal axis is the main system that regulates reproduction in vertebrates through a complex network that involves different neuropeptides, neurotransmitters, and pituitary hormones. Considering that this axis is established early on life, the main goal of the present work is to gather information on its development and the actions of its components during early life stages. This review focuses on fish because their neuroanatomical characteristics make them excellent models to study neuroendocrine systems. The following points are discussed: i) developmental functions of the neuroendocrine components of this network, and ii) developmental disruptions that may impact adult reproduction. The importance of the components of this network and their susceptibility to external/internal signals that can alter their specific early functions and/or even the establishment of the reproductive axis, indicate that more studies are necessary to understand this complex and dynamic network.
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Affiliation(s)
- Paula G Vissio
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA), CONICET, Buenos Aires, Argentina.
| | - María P Di Yorio
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA), CONICET, Buenos Aires, Argentina
| | - Daniela I Pérez-Sirkin
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA), CONICET, Buenos Aires, Argentina
| | - Gustavo M Somoza
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Chascomús, Argentina
| | - Kazuyoshi Tsutsui
- Department of Biology and Center for Medical Life Science, Waseda University, Shinjuku-ku, Tokyo 162-8480, Japan; Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama 1-7-1, Higashi-Hiroshima 739-8521, Japan
| | - Julieta E Sallemi
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA), CONICET, Buenos Aires, Argentina
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Using the Zebrafish as a Genetic Model to Study Erythropoiesis. Int J Mol Sci 2021; 22:ijms221910475. [PMID: 34638816 PMCID: PMC8508994 DOI: 10.3390/ijms221910475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/18/2021] [Accepted: 09/25/2021] [Indexed: 11/30/2022] Open
Abstract
Vertebrates generate mature red blood cells (RBCs) via a highly regulated, multistep process called erythropoiesis. Erythropoiesis involves synthesis of heme and hemoglobin, clearance of the nuclei and other organelles, and remodeling of the plasma membrane, and these processes are exquisitely coordinated by specific regulatory factors including transcriptional factors and signaling molecules. Defects in erythropoiesis can lead to blood disorders such as congenital dyserythropoietic anemias, Diamond–Blackfan anemias, sideroblastic anemias, myelodysplastic syndrome, and porphyria. The molecular mechanisms of erythropoiesis are highly conserved between fish and mammals, and the zebrafish (Danio rerio) has provided a powerful genetic model for studying erythropoiesis. Studies in zebrafish have yielded important insights into RBC development and established a number of models for human blood diseases. Here, we focus on latest discoveries of the molecular processes and mechanisms regulating zebrafish erythropoiesis and summarize newly established zebrafish models of human anemias.
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Saleem S, Kannan RR. Zebrafish: A Promising Real-Time Model System for Nanotechnology-Mediated Neurospecific Drug Delivery. NANOSCALE RESEARCH LETTERS 2021; 16:135. [PMID: 34424426 PMCID: PMC8382796 DOI: 10.1186/s11671-021-03592-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Delivering drugs to the brain has always remained a challenge for the research community and physicians. The blood-brain barrier (BBB) acts as a major hurdle for delivering drugs to specific parts of the brain and the central nervous system. It is physiologically comprised of complex network of capillaries to protect the brain from any invasive agents or foreign particles. Therefore, there is an absolute need for understanding of the BBB for successful therapeutic interventions. Recent research indicates the strong emergence of zebrafish as a model for assessing the permeability of the BBB, which is highly conserved in its structure and function between the zebrafish and mammals. The zebrafish model system offers a plethora of advantages including easy maintenance, high fecundity and transparency of embryos and larvae. Therefore, it has the potential to be developed as a model for analysing and elucidating the permeability of BBB to novel permeation technologies with neurospecificity. Nanotechnology has now become a focus area within the industrial and research community for delivering drugs to the brain. Nanoparticles are being developed with increased efficiency and accuracy for overcoming the BBB and delivering neurospecific drugs to the brain. The zebrafish stands as an excellent model system to assess nanoparticle biocompatibility and toxicity. Hence, the zebrafish model is indispensable for the discovery or development of novel technologies for neurospecific drug delivery and potential therapies for brain diseases.
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Affiliation(s)
- Suraiya Saleem
- Neuroscience Lab, Centre for Molecular and Nanomedical Sciences, Centre for Nanoscience and Nanotechnology, School of Bio and Chemical Engineering, Sathyabama Institute of Science and Technology (Deemed to be University), Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, Tamil Nadu, 600119, India
| | - Rajaretinam Rajesh Kannan
- Neuroscience Lab, Centre for Molecular and Nanomedical Sciences, Centre for Nanoscience and Nanotechnology, School of Bio and Chemical Engineering, Sathyabama Institute of Science and Technology (Deemed to be University), Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, Tamil Nadu, 600119, India.
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Ericsson AC, Busi SB, Davis DJ, Nabli H, Eckhoff DC, Dorfmeyer RA, Turner G, Oswalt PS, Crim MJ, Bryda EC. Molecular and culture-based assessment of the microbiome in a zebrafish (Danio rerio) housing system during set-up and equilibration. Anim Microbiome 2021; 3:55. [PMID: 34353374 PMCID: PMC8340428 DOI: 10.1186/s42523-021-00116-1] [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: 03/01/2021] [Accepted: 07/27/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Zebrafish used in research settings are often housed in recirculating aquaculture systems (RAS) which rely on the system microbiome, typically enriched in a biofiltration substrate, to remove the harmful ammonia generated by fish via oxidation. Commercial RAS must be allowed to equilibrate following installation, before fish can be introduced. There is little information available regarding the bacterial community structure in commercial zebrafish housing systems, or the time-point at which the system or biofilter reaches a microbiological equilibrium in RAS in general. METHODS A zebrafish housing system was monitored at multiple different system sites including tank water in six different tanks, pre- and post-particulate filter water, the fluidized bed biofilter substrate, post-carbon filter water, and water leaving the ultra-violet (UV) disinfection unit and entering the tanks. All of these samples were collected in quadruplicate, from prior to population of the system with zebrafish through 18 weeks post-population, and analyzed using both 16S rRNA amplicon sequencing and culture using multiple agars and annotation of isolates via matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) mass spectrometry. Sequencing data were analyzed using traditional methods, network analyses of longitudinal data, and integration of culture and sequence data. RESULTS The water microbiome, dominated by Cutibacterium and Staphylococcus spp., reached a relatively stable richness and composition by approximately three to four weeks post-population, but continued to evolve in composition throughout the study duration. The microbiomes of the fluidized bed biofilter and water leaving the UV disinfection unit were distinct from water at all other sites. Core taxa detected using molecular methods comprised 36 amplicon sequence variants, 15 of which represented Proteobacteria including multiple members of the families Burkholderiaceae and Sphingomonadaceae. Culture-based screening yielded 36 distinct isolates, and showed moderate agreement with sequencing data. CONCLUSIONS The microbiome of commercial RAS used for research zebrafish reaches a relatively stable state by four weeks post-population and would be expected to be suitable for experimental use following that time-point.
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Affiliation(s)
- Aaron C. Ericsson
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO USA
- University of Missouri Metagenomics Center, Columbia, MO USA
| | - Susheel B. Busi
- Systems Ecology Group, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Daniel J. Davis
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO USA
- Animal Modeling Core, University of Missouri, Columbia, MO USA
| | - Henda Nabli
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO USA
| | | | - Rebecca A. Dorfmeyer
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO USA
- University of Missouri Metagenomics Center, Columbia, MO USA
| | - Giedre Turner
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO USA
- University of Missouri Metagenomics Center, Columbia, MO USA
| | - Payton S. Oswalt
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO USA
| | | | - Elizabeth C. Bryda
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO USA
- Animal Modeling Core, University of Missouri, Columbia, MO USA
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Fontana BD, Alnassar N, Parker MO. Tricaine Methanesulfonate (MS222) Has Short-Term Effects on Young Adult Zebrafish ( Danio rerio) Working Memory and Cognitive Flexibility, but Not on Aging Fish. Front Behav Neurosci 2021; 15:686102. [PMID: 34421552 PMCID: PMC8371240 DOI: 10.3389/fnbeh.2021.686102] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 07/16/2021] [Indexed: 11/13/2022] Open
Abstract
Exposure to anesthetic drugs is common in biomedical sciences being part of routine procedures in different translational species, however its impacts on memory and cognition are still debated, having different impacts depending on drug and age. The zebrafish (Danio rerio) is a translational species widely used in behavioral neuroscience, where tricaine methanesulfonate (MS222) is the most acceptable and used drug when conducting routine procedures. Based on this, we investigated the effects of MS222 (100 mg/l) in young adults and aging zebrafish 1, 2, 3, and 7 days after exposure. Animals' were submitted to the anesthetic procedure until loss of body posture, slowing of opercular movements and lack of response to tail touch with a plastic pipette were achieved, then further left in the drug for 3 min. After that, animals (6 mpf vs. 24 mpf) were transferred to a recovery tank until fully recovered and transferred back to their housing system until further testing in the free movement pattern (FMP) Y-maze, which assesses zebrafish working memory and cognitive lexibility. Young animals had significant impairment in their working memory and cognitive flexibility 1 and 2 days after the exposure to MS222, being fully recovered by day 3 and with no effects 7 days post drug exposure. Increased repetitions were also observed for animals exposed to MS222 which could indicate increased stress-related response in animals up to 2 days after drug exposure. No drug effect was observed in aging animals besides their natural decreased alternations and working memory. Overall, behavioral experiments after routine procedures using MS222 should be performed with caution and need to be delayed, at least 3 days after exposure where working memory, cognitive flexibility, and repetitive behavior are back to normal.
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Affiliation(s)
- Barbara D. Fontana
- Brain and Behaviour Laboratory, School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | | | - Matthew O. Parker
- Brain and Behaviour Laboratory, School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
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Jorge S, Ferreira JM, Olsson IAS, Valentim AM. Adult Zebrafish Anesthesia: A Study of Efficacy and Behavioral Recovery of Different Anesthetics. Zebrafish 2021; 18:330-337. [PMID: 34314622 DOI: 10.1089/zeb.2021.0023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The use of proper anesthesia in zebrafish research is essential to ensure fish welfare and data reliability. However, anesthesia long-term side effects remain poorly understood. The purpose of this study was to assess anesthesia quality and recovery in adult zebrafish using different anesthetic protocols and to determine possible long-term effects on the fish activity and anxiety-like behaviors after anesthesia. Mixed-sex adult AB zebrafish were randomly assigned to five different groups (Control, 175 mg/L of tricaine methanesulfonate [MS222], 45 mg/L of clove oil, 2 mg/L of etomidate, and 5 mg/L of propofol combined with 150 mg/L of lidocaine) and placed in the respective anesthetic bath. Time to lose the equilibrium, response to touch and to caudal fin pinch stimuli, and recovery after anesthesia administration were evaluated. In addition, after stopping anesthesia, respiratory rate, activity, and anxiety-like behaviors in the novel tank test were studied. Overall, all protocols proved to be adequate for zebrafish anesthesia research as they showed full recovery at 1 h, and only etomidate had minor effects on fish behavior in the novel tank, a validated test for anxiety.
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Affiliation(s)
- Sara Jorge
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Laboratory Animal Science, IBMC-Instituto de Biologia Molecular Celular, Universidade do Porto, Porto, Portugal.,Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Jorge M Ferreira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Laboratory Animal Science, IBMC-Instituto de Biologia Molecular Celular, Universidade do Porto, Porto, Portugal
| | - I Anna S Olsson
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Laboratory Animal Science, IBMC-Instituto de Biologia Molecular Celular, Universidade do Porto, Porto, Portugal
| | - Ana M Valentim
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Laboratory Animal Science, IBMC-Instituto de Biologia Molecular Celular, Universidade do Porto, Porto, Portugal
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López-Olmeda JF, Zhao H, Reischl M, Pylatiuk C, Lucon-Xiccato T, Loosli F, Foulkes NS. Long photoperiod impairs learning in male but not female medaka. iScience 2021; 24:102784. [PMID: 34308290 PMCID: PMC8283132 DOI: 10.1016/j.isci.2021.102784] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/12/2021] [Accepted: 06/23/2021] [Indexed: 01/01/2023] Open
Abstract
Day length in conjunction with seasonal cycles affects many aspects of animal biology. We have studied photoperiod-dependent alterations of complex behavior in the teleost, medaka (Oryzias latipes), a photoperiodic breeder, in a learning paradigm whereby fish have to activate a sensor to obtain a food reward. Medaka were tested under a long (14:10 LD) and short (10:14 LD) photoperiod in three different groups: mixed-sex, all-males, and all-females. Under long photoperiod, medaka mixed-sex groups learned rapidly with a stable response. Unexpectedly, males-only groups showed a strong learning deficit, whereas females-only groups performed efficiently. In mixed-sex groups, female individuals drove group learning, whereas males apparently prioritized mating over feeding behavior resulting in strongly reduced learning performance. Under short photoperiod, where medaka do not mate, male performance improved to a level similar to that of females. Thus, photoperiod has sex-specific effects on the learning performance of a seasonal vertebrate.
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Affiliation(s)
- Jose Fernando López-Olmeda
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Department of Physiology, Faculty of Biology, University of Murcia, 30100 Murcia, Spain
| | - Haiyu Zhao
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- School of Life Sciences, Lanzhou University, No.222 South Tianshui Road, 730000 Lanzhou, PR China
| | - Markus Reischl
- Institute for Applied Computer Science, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Christian Pylatiuk
- Institute for Applied Computer Science, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Tyrone Lucon-Xiccato
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy
| | - Felix Loosli
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Nicholas S. Foulkes
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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Chaichit S, Sato T, Yu H, Tanaka YK, Ogra Y, Mizoguchi T, Itoh M. Evaluation of Dexamethasone-Induced Osteoporosis In Vivo Using Zebrafish Scales. Pharmaceuticals (Basel) 2021; 14:ph14060536. [PMID: 34205111 PMCID: PMC8228068 DOI: 10.3390/ph14060536] [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: 04/29/2021] [Revised: 05/28/2021] [Accepted: 06/01/2021] [Indexed: 02/03/2023] Open
Abstract
Glucocorticoid-induced osteoporosis (GIOP) is a major cause of secondary osteoporosis, and the pathogenic mechanisms of GIOP remain to be elucidated. Here, we show a rapid dexamethasone-induced osteoporosis animal model using zebrafish scales. Intraperitoneal injection of dexamethasone over a 5-day period suppressed the regeneration of scales. Furthermore, the circularity of the newly formed regenerated scales was also slightly reduced compared to that of the control group on day 5. The changes in bone-related enzymes, such as cathepsin K, tartrate-resistant acid phosphatase (TRAP) for bone resorption, and alkaline phosphatase (ALP) for bone formation, provide insight into the progression of bone diseases; therefore, we further developed a method to measure the activities of cathepsin K, TRAP, and ALP using zebrafish scales. We found that a lysis buffer with detergent at neutral pH under sonication efficiently helped extract these three enzymes with high activity levels. Interestingly, treatment with a dexamethasone injection produced considerably higher levels of cathepsin K activity and a lower Ca/P ratio than those in the control group, suggesting that dexamethasone increased osteoclast activity, with no significant changes in the activities of TRAP and ALP. Our GIOP model and enzyme assay method could help to design better treatments for GIOP.
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Affiliation(s)
- Siripat Chaichit
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan; (S.C.); (T.S.); (H.Y.); (Y.-k.T.); (Y.O.); (T.M.)
- Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Takuto Sato
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan; (S.C.); (T.S.); (H.Y.); (Y.-k.T.); (Y.O.); (T.M.)
| | - Huiqing Yu
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan; (S.C.); (T.S.); (H.Y.); (Y.-k.T.); (Y.O.); (T.M.)
| | - Yu-ki Tanaka
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan; (S.C.); (T.S.); (H.Y.); (Y.-k.T.); (Y.O.); (T.M.)
| | - Yasumitsu Ogra
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan; (S.C.); (T.S.); (H.Y.); (Y.-k.T.); (Y.O.); (T.M.)
| | - Takamasa Mizoguchi
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan; (S.C.); (T.S.); (H.Y.); (Y.-k.T.); (Y.O.); (T.M.)
| | - Motoyuki Itoh
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan; (S.C.); (T.S.); (H.Y.); (Y.-k.T.); (Y.O.); (T.M.)
- Correspondence: ; Tel.: +81-43-226-2890
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Zebrafish, an In Vivo Platform to Screen Drugs and Proteins for Biomedical Use. Pharmaceuticals (Basel) 2021; 14:ph14060500. [PMID: 34073947 PMCID: PMC8225009 DOI: 10.3390/ph14060500] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 12/28/2022] Open
Abstract
The nearly simultaneous convergence of human genetics and advanced molecular technologies has led to an improved understanding of human diseases. At the same time, the demand for drug screening and gene function identification has also increased, albeit time- and labor-intensive. However, bridging the gap between in vitro evidence from cell lines and in vivo evidence, the lower vertebrate zebrafish possesses many advantages over higher vertebrates, such as low maintenance, high fecundity, light-induced spawning, transparent embryos, short generation interval, rapid embryonic development, fully sequenced genome, and some phenotypes similar to human diseases. Such merits have popularized the zebrafish as a model system for biomedical and pharmaceutical studies, including drug screening. Here, we reviewed the various ways in which zebrafish serve as an in vivo platform to perform drug and protein screening in the fields of rare human diseases, social behavior and cancer studies. Since zebrafish mutations faithfully phenocopy many human disorders, many compounds identified from zebrafish screening systems have advanced to early clinical trials, such as those for Adenoid cystic carcinoma, Dravet syndrome and Diamond-Blackfan anemia. We also reviewed and described how zebrafish are used to carry out environmental pollutant detection and assessment of nanoparticle biosafety and QT prolongation.
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Pham CV, Pham TT, Lai TT, Trinh DC, Nguyen HVM, Ha TTM, Phuong TT, Tran LD, Winkler C, To TT. Icariin reduces bone loss in a Rankl-induced transgenic medaka (Oryzias latipes) model for osteoporosis. JOURNAL OF FISH BIOLOGY 2021; 98:1039-1048. [PMID: 31858585 DOI: 10.1111/jfb.14241] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
Given the limitations and side effects of many synthetic drugs, natural products are an important alternative source for drugs and medications for many diseases. Icariin (ICA), one of the main flavonoids from plants of the Epimedium genus, has been shown to ameliorate osteoporosis and improve bone health in preclinical studies. Those studies have used different in vivo models, mostly rodents, but the underlying mechanisms remain unclear. The present study shows, for the first time, that ICA reduces bone damage in a Rankl-induced medaka fish (Oryzias latipes), a non-rodent osteoporosis model. Live imaging was previously performed in this model to characterize antiresorptive and bone-anabolic properties of drugs. Here, a new quantification method (IM ) was established based on the length of mineralized neural arches to quantify levels of bone mineralization damage and protection in early post-embryonic fish. This method was validated by quantification of three levels of bone damage in three independent Rankl fish lines, and by the determination of different degrees of severity of osteoporosis-like phenotypes in one Rankl line exposed to variable Rankl induction schemes. IM was also used to quantify the efficacy of alendronate and etidronate, two common anti-osteoporotic bisphosphonates, and revealed comparable bone protective effects for ICA and alendronate in this fish osteoporosis model. This study's data support the value of the medaka fish model for bone research and establish a method to screen for novel osteoprotective compounds.
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Affiliation(s)
- Cuong V Pham
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Thanh T Pham
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Thuy T Lai
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Dat C Trinh
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Huong V M Nguyen
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Tam T M Ha
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Thuong T Phuong
- Department of Herbal Analysis and Standardization, Vietnam National Institute of Medicinal Materials, Hanoi, Vietnam
| | - Long D Tran
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
- The Key Laboratory of Enzyme and Protein Technology, VNU University of Science, Hanoi, Vietnam
| | - Christoph Winkler
- Department of Biological Sciences and Centre for Bioimaging Sciences, National University of Singapore, Singapore
| | - Thuy T To
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
- The Key Laboratory of Enzyme and Protein Technology, VNU University of Science, Hanoi, Vietnam
- Dinh Tien Hoang Institute of Medicine, Hanoi, Vietnam
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Watanabe Y, Oguri R, Suzuki R, Meng Q, Ishikawa Y, Tatsukawa H, Hashimoto H, Hitomi K. Thrombin-deficient mutant of medaka, a model fish, displays serious retardation in blood coagulation. Biosci Biotechnol Biochem 2021; 85:824-833. [PMID: 33589932 DOI: 10.1093/bbb/zbaa098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/24/2020] [Indexed: 12/27/2022]
Abstract
At the last stage of the blood coagulation cascade, thrombin plays a central role in the processing of fibrinogen for the polymerization and in the additional activation of Factor XIII for the stable cross-linking of fibrin. In addition, thrombin carries out possible multiple roles via processing or interaction with various functional proteins. Several studies conducted in order to elucidate additional physiological significance are ongoing. To clarify further significance of thrombin and to establish an associated disease model, we characterized the orthologue gene for medaka (Oryzias latipes), a research model fish. Tissue distribution of medaka prothrombin has been immunotechnically analyzed. Furthermore, thrombin-deficient medaka mutants were viably established by utilizing a genome-editing method. The established gene-deficient mutants exhibited retarded blood coagulation even in the heterozygous fish. Taking advantage of their ease of handling, this specific model is useful for further investigation in medical research areas on human coagulation diseases.
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Affiliation(s)
- Yuko Watanabe
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Rina Oguri
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Risa Suzuki
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Qi Meng
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Yuta Ishikawa
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Hideki Tatsukawa
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | | | - Kiyotaka Hitomi
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
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Effects of the Marine Biotoxins Okadaic Acid and Dinophysistoxins on Fish. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2021. [DOI: 10.3390/jmse9030293] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Natural high proliferations of toxin-producing microorganisms in marine and freshwater environments result in dreadful consequences at the socioeconomically and environmental level due to water and seafood contamination. Monitoring programs and scientific evidence point to harmful algal blooms (HABs) increasing in frequency and intensity as a result of global climate alterations. Among marine toxins, the okadaic acid (OA) and the related dinophysistoxins (DTX) are the most frequently reported in EU waters, mainly in shellfish species. These toxins are responsible for human syndrome diarrhetic shellfish poisoning (DSP). Fish, like other marine species, are also exposed to HABs and their toxins. However, reduced attention has been given to exposure, accumulation, and effects on fish of DSP toxins, such as OA. The present review intends to summarize the current knowledge of the impact of DSP toxins and to identify the main issues needing further research. From data reviewed in this work, it is clear that exposure of fish to DSP toxins causes a range of negative effects, from behavioral and morphological alterations to death. However, there is still much to be investigated about the ecological and food safety risks related to contamination of fish with DSP toxins.
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Fujisawa K, Takami T, Shintani H, Sasai N, Matsumoto T, Yamamoto N, Sakaida I. Seasonal variations in photoperiod affect hepatic metabolism of medaka (Oryzias latipes). FEBS Open Bio 2021; 11:1029-1040. [PMID: 33475250 PMCID: PMC8016123 DOI: 10.1002/2211-5463.13095] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 01/13/2021] [Accepted: 01/19/2021] [Indexed: 11/17/2022] Open
Abstract
Organisms living in temperate regions are sensitive to seasonal variations in the environment; they are known to accumulate energy as fat in their livers during the winter when days are shorter, temperatures are lower, and food is scarce. However, the effect of variations in photoperiod alone on hepatic lipid metabolism has not been well studied. Therefore, in this study, we analyzed lipid metabolism in the liver of medaka, Oryzias latipes, while varying the length of days at constant temperature. Larger amounts of fatty acids accumulated in the liver after 14 days under short‐day conditions than under long‐day conditions. Metabolome analysis showed no accumulation of long‐chain unsaturated fatty acids, but showed a significant accumulation of long‐chain saturated fatty acids. Short‐day conditions induced a reduction in the levels of succinate, fumarate, and malate in the tricarboxylic acid cycle, decreased expression of PPARα, and decreased accumulation of acylcarnitine, which suggested inhibition of lipolysis. In addition, transparent medaka fed on a high‐fat diet under short‐day conditions exhibited greater amounts of fat accumulation and developed fatty liver. The findings of our study will be useful for creating a medaka hepatic steatosis model for future studies of hepatic steatosis‐related diseases.
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Affiliation(s)
- Koichi Fujisawa
- Department of Liver regenerative medicine, Yamaguchi University School of Medicine, Ube, Japan.,Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Taro Takami
- Department of Liver regenerative medicine, Yamaguchi University School of Medicine, Ube, Japan.,Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Haruko Shintani
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Nanami Sasai
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan.,Department of Laboratory Science, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Toshihiko Matsumoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan.,Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Naoki Yamamoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan.,Yamaguchi University Health Administration Center, Japan
| | - Isao Sakaida
- Department of Liver regenerative medicine, Yamaguchi University School of Medicine, Ube, Japan.,Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Ube, Japan
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Perez-Gelvez YNC, Unger S, Kurz S, Rosenbalm K, Wright WM, Rhodes OE, Tiemeyer M, Bergmann CW. Chronic exposure to low doses of ionizing radiation impacts the processing of glycoprotein N-linked glycans in Medaka ( Oryzias latipes). Int J Radiat Biol 2021; 97:401-420. [PMID: 33346724 DOI: 10.1080/09553002.2021.1864500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
PURPOSE Ionizing radiation is found naturally in the environment. Low doses of IR may have beneficial applications, yet there is also potential for detrimental long-term health effects. Impacts following exposure to low levels of IR have been refractory to identification and quantification. Glycoprotein glycosylation is vital to cell-cell communication and organismal function, and sensitive to changes in an organism's macro- and cellular environment. We investigated whether accumulated low doses of IR (LoDIR) affect the N-linked glycoprotein glycans using Medaka fish (Oryzias latipes). MATERIALS AND METHODS State-of-the-art methods in radiation exposure and glycan analysis were applied to study N-glycan changes after 190 day exposure at three different rates of gamma irradiation (2.25, 21.01, and 204.3 mGy/day) in wild-type adult Medaka. Tissue N-glycans were analyzed following enzymatic release from extracted proteins. RESULTS N-linked glycan profiles are dominated by complex type N-glycans modified with terminal sialic acid and core fucose. Fucosylation and sialylation of N-linked glycoprotein glycans are affected by LoDIR and a subset of N-glycans are involved in the organismal radio-response. CONCLUSION This is the first indication that the glycome can be interrogated for biomarkers that report the impact of chronic exposure to environmental stressors, such as low-level IR.
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Affiliation(s)
- Yeni Natalia C Perez-Gelvez
- Carbohydrate Complex Research Center, Biochemistry and Molecular Biology, The University of Georgia, Athens, GA, USA
| | - Shem Unger
- Savannah River Ecology Laboratory, The University of Georgia, Aiken, GA, USA
| | - Simone Kurz
- Carbohydrate Complex Research Center, The University of Georgia, Athens, GA, USA
| | - Katelyn Rosenbalm
- Carbohydrate Complex Research Center, Biochemistry and Molecular Biology, The University of Georgia, Athens, GA, USA
| | | | - Olin E Rhodes
- Savannah River Ecology Laboratory, Odum School of Ecology, The University of Georgia, Athens, GA, USA
| | - Michael Tiemeyer
- Carbohydrate Complex Research Center, The University of Georgia, Athens, GA, USA
| | - Carl W Bergmann
- Carbohydrate Complex Research Center, The University of Georgia, Athens, GA, USA
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Liu P, Wang S, Chang Z, Li L, Xing H, Dong WF. Combined toxicity of silica nanoparticles and cadmium chloride on the cardiovascular system of zebrafish (Danio rerio) larvae. Comp Biochem Physiol C Toxicol Pharmacol 2021; 239:108895. [PMID: 32942051 DOI: 10.1016/j.cbpc.2020.108895] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/04/2020] [Accepted: 09/09/2020] [Indexed: 12/22/2022]
Abstract
Silica nanoparticles (SiNPs) and cadmium are major environmental pollutants that have severe detrimental effects on living organisms. Recent studies have demonstrated that the combined exposure of SiNPs and heavy metals is more toxic than individual exposure. However, studies on the effects of the combined exposure of SiNPs and cadmium, on the cardiovascular system are rare. In this study, zebrafish (Danio rerio) embryos were exposed to a combination of SiNPs and experimentally safe concentrations CdCl2 for studying the alterations in heart morphology, heart rate, apoptosis, and vascular endothelial cells. The results demonstrated that the detrimental effects of SiNPs+CdCl2 exposure on the heart rate and vascular endothelial cells were more severe than those following exposure to SiNPs or CdCl2 alone. Gene expression analysis revealed that apoptosis and inflammation could be the major pathways underlying the toxicity caused by the combined exposure of SiNPs and CdCl2.
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Affiliation(s)
- Pai Liu
- University of Science and Technology of China, Hefei 230026, People's Republic of China; CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), 88 Keling Road, Suzhou 215163, People's Republic of China
| | - Sheng Wang
- University of Science and Technology of China, Hefei 230026, People's Republic of China; CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), 88 Keling Road, Suzhou 215163, People's Republic of China
| | - Zhimin Chang
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), 88 Keling Road, Suzhou 215163, People's Republic of China
| | - Li Li
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), 88 Keling Road, Suzhou 215163, People's Republic of China
| | - Hao Xing
- CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), 88 Keling Road, Suzhou 215163, People's Republic of China
| | - Wen-Fei Dong
- University of Science and Technology of China, Hefei 230026, People's Republic of China; CAS Key Laboratory of Biomedical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science (CAS), 88 Keling Road, Suzhou 215163, People's Republic of China.
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Kwok ML, Li ZP, Law TYS, Chan KM. Promotion of cadmium uptake and cadmium-induced toxicity by the copper transporter CTR1 in HepG2 and ZFL cells. Toxicol Rep 2020; 7:1564-1570. [PMID: 33294387 PMCID: PMC7695923 DOI: 10.1016/j.toxrep.2020.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 11/20/2022] Open
Abstract
Cadmium (Cd2+) is considered a human carcinogen as it causes oxidative stress and alters DNA repair responses. However, how Cd2+ is taken up by cells remains unclear. We hypothesized that Cd2+ could be transported into cells via a membrane copper (Cu) transporter, CTR1. CTR1 expression was not affected by Cd2+ exposure at the mRNA or protein level. Stable cell lines overexpressing either hCTR1, in the human liver cell line HepG2, or zCTR1, in the zebrafish liver cell line ZFL, were created to study their responses to Cd2+ insult. It was found that both HepG2 and ZFL cells overexpressing CTR1 had higher Cd2+ uptake and thus became sensitive to Cd2+. In contrast, hCTR1 knockdown in HepG2 cells led to a reduced uptake of Cd2+, making the cells relatively resistant to Cd2+. Localization studies revealed that hCTR1 had a clustered pattern after Cd2+ exposure, possibly in an attempt to reduce both Cd2+ uptake and Cd2+-induced toxicity. These in vitro results indicate that CTR1 can transport Cd2+ into the cell, resulting in Cd2+ toxicity.
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Key Words
- CTR1, High-affinity Cu-uptake protein 1
- Cadmium toxicity
- Cadmium uptake
- Cd, Cadmium
- Copper transporter
- Cu, Copper
- LC50, Median lethal concentration
- PBS, Phosphate-buffered saline
- Stable cell line
- h, hours
- hCTR1, Human CTR1 protein
- hCtr1, Human CTR1 gene
- min, minutes
- qPCR, Quantitative real-time PCR
- ybx1, Y box-binding protein 1 gene
- zCTR1, Zebrafish CTR1 protein
- zCtr1, Zebrafish CTR1 gene
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50
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Cui L, Fan M, Belanger S, Li J, Wang X, Fan B, Li W, Gao X, Chen J, Liu Z. Oryzias sinensis, a new model organism in the application of eco-toxicity and water quality criteria (WQC). CHEMOSPHERE 2020; 261:127813. [PMID: 32768750 DOI: 10.1016/j.chemosphere.2020.127813] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Fish play an important role as a primary eco-toxicity test organism in environmental hazard assessment. Toxicity data of native species are often sought for use in the derivation of water quality criteria (WQC). The Chinese medaka, Oryzias sinensis, is an endemic species of China. The acute toxicity of 6 chemicals on O. sinensis was tested in this work, and toxicity effect of 10 chemicals to O. sinensis was compared with 4 commonly used species globally. A total of 9 robust interspecies correlation estimation (ICE) models using O. sinensis as the surrogate species were constructed and used to derive predicted no effect concentration and hazardous concentrations of 5% species (HC5) values based on species sensitivity distribution. Results showed that the 96 h median lethal concentration of Hg2+, Cr6+, linear alkylbenzene sulfonates, triclosan, 3,4-dchloroaniline, sodium chloride to O. sinensis were 0.29, 50, 6.0, 0.63, 9.2 and 14,400 mg/L, respectively. The sensitivity of O. sinensis and other 4 testing organisms were statistically indistinguishable (P > 0.05). No significant difference among HC5-ICE, HC5-measured and HC5 from published literatures was identified. All results indicated the O. sinensis is a potential model organism in the application of eco-toxicity and WQC in China and other Asian countries.
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Affiliation(s)
- Liang Cui
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Ming Fan
- Global Product Stewardship, The Procter and Gamble Company, 8700 Mason Montgomery Road, Mason, OH, 45040, United States
| | - Scott Belanger
- Global Product Stewardship, The Procter and Gamble Company, 8700 Mason Montgomery Road, Mason, OH, 45040, United States
| | - Ji Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Xiaonan Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Bo Fan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Wenwen Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Environmental and Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Xiangyun Gao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Jin Chen
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Zhengtao Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
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