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Cossaboon JM, Teh SJ, Sant KE. Reproductive toxicity of DDT in the Japanese medaka fish model: Revisiting the impacts of DDT+ on female reproductive health. CHEMOSPHERE 2024; 357:141967. [PMID: 38615950 PMCID: PMC11160350 DOI: 10.1016/j.chemosphere.2024.141967] [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: 01/31/2024] [Revised: 03/21/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
The organochlorine pesticide dichlorodiphenyltrichloroethane (DDT) is an endocrine-disrupting compound (EDC) that has been banned by most countries for decades. However, it continues to be detected in nearly all humans and wildlife due to its biological and environmental persistence. The ovarian dysgenesis syndrome hypothesis speculates that exposure to EDCs during sensitive developmental windows such as early gonadal differentiation lead to reproductive disorders later in life. Yet, mechanisms by which DDT affects developing gonads remain unclear due to the inherent challenge of getting developmental exposure data from adults presenting with reproductive disease. The Japanese medaka (Oryzias latipes) is a valuable fish model for sex-specific toxicological studies due to its chromosomal sex determination, external embryonic development, short generation time, and extensively mapped genome. It is well documented that medaka exposed to DDT and its metabolites and byproducts (herein referred to as DDT+) at different developmental time points experience permanent alterations in gonadal morphology, reproductive success, and molecular and hormonal signaling. However, the overwhelming majority of studies focus primarily on functional and morphological outcomes in males and females and have rarely investigated long-term transcriptional or molecular effects. This review summarizes previous experimental findings and the state of our knowledge concerning toxic effects DDT + on reproductive development, fertility, and health in the valuable medaka model. It also identifies gaps in knowledge, emphasizing a need for more focus on molecular mechanisms of ovarian endocrine disruption using enhanced molecular tools that have become increasingly available over the past few decades. Furthermore, DDT forms a myriad of over 45 metabolites and transformation products in biota and the environment, very few of which have been evaluated for environmental abundance or health effects. This reinforces the demand for high throughput and economical in vivo models for predictive toxicology screening, and the Japanese medaka is uniquely positioned to meet this need.
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Affiliation(s)
| | - Swee J Teh
- School of Veterinary Medicine, University of California, Davis, CA, 95616, USA
| | - Karilyn E Sant
- School of Public Health, San Diego State University, San Diego, CA, 92182, USA.
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2
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Zeitler EM, Jennette JC, Flythe JE, Falk RJ, Poulton JS. High-calorie diet results in reversible obesity-related glomerulopathy in adult zebrafish regardless of dietary fat. Am J Physiol Renal Physiol 2022; 322:F527-F539. [PMID: 35224994 PMCID: PMC8977181 DOI: 10.1152/ajprenal.00018.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/10/2022] [Accepted: 02/22/2022] [Indexed: 11/22/2022] Open
Abstract
Obesity is a risk factor for the development of kidney disease. The role of diet in this association remains undetermined, in part due to practical limitations in studying nutrition in humans. In particular, the relative importance of calorie excess versus dietary macronutrient content is poorly understood. For example, it is unknown if calorie restriction modulates obesity-related kidney pathology. To study the effects of diet-induced obesity in a novel animal model, we treated zebrafish for 8 wk with diets varied in both calorie and fat content. Kidneys were evaluated by light and electron microscopy. We evaluated glomerular filtration barrier function using a dextran permeability assay. We assessed the effect of diet on podocyte sensitivity to injury using an inducible podocyte injury model. We then tested the effect of calorie restriction on the defects caused by diet-induced obesity. Fish fed a high-calorie diet developed glomerulomegaly (mean: 1,211 vs. 1,010 µm2 in controls, P = 0.007), lower podocyte density, foot process effacement, glomerular basement membrane thickening, tubular enlargement (mean: 1,038 vs. 717 µm2 in controls, P < 0.0001), and ectopic lipid deposition. Glomerular filtration barrier dysfunction and increased susceptibility to podocyte injury were observed with high-calorie feeding regardless of dietary fat content. These pathological changes resolved with 4 wk of calorie restriction. Our findings suggest that calorie excess rather than dietary fat drives obesity-related kidney dysfunction and that inadequate podocyte proliferation in response to glomerular enlargement may cause podocyte dysfunction. We also demonstrate the value of zebrafish as a novel model for studying diet in obesity-related kidney disease.NEW & NOTEWORTHY Obesity is a risk factor for kidney disease. The role of diet in this association is difficult to study in humans. In this study, zebrafish fed a high-calorie diet, regardless of fat macronutrient composition, developed glomerulomegaly, foot process effacement, and filtration barrier dysfunction, recapitulating the changes seen in humans with obesity. Calorie restriction reversed the changes. This work suggests that macronutrient composition may be less important than total calories in the development of obesity-related kidney disease.
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Affiliation(s)
- Evan M Zeitler
- Division of Nephrology and Hypertension, Department of Medicine, UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - J Charles Jennette
- Division of Nephrology and Hypertension, Department of Medicine, UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Nephropathology Division, Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jennifer E Flythe
- Division of Nephrology and Hypertension, Department of Medicine, UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Ronald J Falk
- Division of Nephrology and Hypertension, Department of Medicine, UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - John S Poulton
- Division of Nephrology and Hypertension, Department of Medicine, UNC Kidney Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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3
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Schartl M, Kneitz S, Ormanns J, Schmidt C, Anderson JL, Amores A, Catchen J, Wilson C, Geiger D, Du K, Garcia-Olazábal M, Sudaram S, Winkler C, Hedrich R, Warren WC, Walter R, Meyer A, Postlethwait JH. The Developmental and Genetic Architecture of the Sexually Selected Male Ornament of Swordtails. Curr Biol 2021; 31:911-922.e4. [PMID: 33275891 PMCID: PMC8580132 DOI: 10.1016/j.cub.2020.11.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/12/2020] [Accepted: 11/11/2020] [Indexed: 12/21/2022]
Abstract
Sexual selection results in sex-specific characters like the conspicuously pigmented extension of the ventral tip of the caudal fin-the "sword"-in males of several species of Xiphophorus fishes. To uncover the genetic architecture underlying sword formation and to identify genes that are associated with its development, we characterized the sword transcriptional profile and combined it with genetic mapping approaches. Results showed that the male ornament of swordtails develops from a sexually non-dimorphic prepattern of transcription factors in the caudal fin. Among genes that constitute the exclusive sword transcriptome and are located in the genomic region associated with this trait we identify the potassium channel, Kcnh8, as a sword development gene. In addition to its neural function kcnh8 performs a known role in fin growth. These findings indicate that during evolution of swordtails a brain gene has been co-opted for an additional novel function in establishing a male ornament.
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Affiliation(s)
- Manfred Schartl
- Developmental Biochemistry, Biocenter, University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany; The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
| | - Susanne Kneitz
- Biochemistry and Cell Biology, Biocenter, University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany
| | - Jenny Ormanns
- Biochemistry and Cell Biology, Biocenter, University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany
| | - Cornelia Schmidt
- Biochemistry and Cell Biology, Biocenter, University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany
| | - Jennifer L Anderson
- Systematic Biology, Department of Organismal Biology, Uppsala University, Norbyvägen 18D, 752 36 Uppsala, Sweden
| | - Angel Amores
- Institute of Neuroscience, University of Oregon, Eugene, OR 97401, USA
| | - Julian Catchen
- Department of Animal Biology, University of Illinois, Urbana, IL 6812, USA
| | - Catherine Wilson
- Institute of Neuroscience, University of Oregon, Eugene, OR 97401, USA
| | - Dietmar Geiger
- Julius-von-Sachs-Institute for Biosciences, Molecular Plant Physiology and Biophysics, Biocenter, University Würzburg, Julius-von-Sachs-Platz 2, 97082 Würzburg, Germany
| | - Kang Du
- Developmental Biochemistry, Biocenter, University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany; The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | | | - Sudha Sudaram
- Department of Biological Sciences and Centre for Bioimaging Sciences, National University of Singapore, Singapore 117543, Singapore
| | - Christoph Winkler
- Department of Biological Sciences and Centre for Bioimaging Sciences, National University of Singapore, Singapore 117543, Singapore
| | - Rainer Hedrich
- Julius-von-Sachs-Institute for Biosciences, Molecular Plant Physiology and Biophysics, Biocenter, University Würzburg, Julius-von-Sachs-Platz 2, 97082 Würzburg, Germany
| | - Wesley C Warren
- 440G Bond Life Sciences Center, 1201 Rollins Street, University of Missouri, Columbia, MO 65211, USA
| | - Ronald Walter
- The Xiphophorus Genetic Stock Center, Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Axel Meyer
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany.
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Gong S, Cao G, Li F, Chen Z, Pan X, Ma H, Zhang Y, Yu B, Kou J. Endothelial Conditional Knockdown of NMMHC IIA (Nonmuscle Myosin Heavy Chain IIA) Attenuates Blood-Brain Barrier Damage During Ischemia-Reperfusion Injury. Stroke 2021; 52:1053-1064. [PMID: 33588591 DOI: 10.1161/strokeaha.120.031410] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE In ischemic stroke, breakdown of the blood-brain barrier (BBB) aggravates brain damage. Endothelial detachment contributes to BBB disruption and neurovascular dysfunction, but its regulation in stroke has yet to be clarified. We investigated the function of NMMHC IIA (nonmuscle myosin heavy chain IIA) in the endothelium on BBB breakdown and its potential mechanisms. METHODS Endothelial conditional knockdown NMMHC IIA (Myh9ECKD) was constructed in vivo and in vitro, and its role was explored in middle cerebral artery occlusion/reperfusion-injured mice and oxygen-glucose deprivation/reoxygenation-injured brain microvascular endothelial cells. The degree of brain injury was analyzed using staining (2,3,5-triphenyltetrazolium chloride, hematoxylin, and eosin) and electron microscopy. BBB breakdown was investigated with leakage of Evans Blue dye and expression of TJs (tight junctions) and MMP (matrix metallopeptidase)-2/9. Transcriptomics for enrichment analysis was adopted to explore the potential downstream signaling pathways of NMMHC IIA involved in middle cerebral artery occlusion/reperfusion-induced BBB dysfunction. RESULTS NMMHC IIA expression was upregulated in endothelial cells after cerebral ischemia/reperfusion injury. Myh9ECKD mice exhibited improvement in endothelial barrier hyperpermeability and TJs integrity stimulated by cerebral ischemia/reperfusion. Blebbistatin (NMMHC II inhibitor) treatment exerted the same effect. Transcriptomics showed that NMMHC IIA was involved in regulating various BBB-related genomic changes in the middle cerebral artery occlusion/reperfusion model, and NMMHC IIA was confirmed to significantly modulate Hippo and peroxisome proliferator-activated receptor gamma/nuclear factor-kappa B signaling pathways, which are closely related to BBB damage. CONCLUSIONS Our findings provide some new insights into how NMMHC IIA contributes to maintaining the integrity of the cerebral endothelial barrier. NMMHC IIA could be a potential therapeutic target for ischemic stroke.
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Affiliation(s)
- Shuaishuai Gong
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.)
| | - Guosheng Cao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.).,College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, PR China (G.C.)
| | - Fang Li
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.)
| | - Zhuo Chen
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.)
| | - Xuewei Pan
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.)
| | - Huifen Ma
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.)
| | - Yuanyuan Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.)
| | - Boyang Yu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.)
| | - Junping Kou
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medical, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, PR China (S.G., G.C., F.L., Z.C., X.P., H.M., Y.Z., B.Y., J.K.)
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Nüsken E, Voggel J, Fink G, Dötsch J, Nüsken KD. Impact of early-life diet on long-term renal health. Mol Cell Pediatr 2020; 7:17. [PMID: 33269431 PMCID: PMC7710776 DOI: 10.1186/s40348-020-00109-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/13/2020] [Indexed: 12/15/2022] Open
Abstract
In the last years, great advances have been made in the effort to understand how nutritional influences can affect long-term renal health. Evidence has accumulated that maternal nutrition before and during pregnancy and lactation as well as early postnatal nutrition is of special significance. In this review, we summarize epidemiologic and experimental data on the renal effects of perinatal exposure to energy restriction, low-protein diet, high-fat diet, high-fructose diet, and high- and low-salt diet as well as micronutrient deficiencies. Interestingly, different modifications during early-life diet may end up with similar sequelae for the offspring. On the other hand, molecular pathways can be influenced in opposite directions by different dietary interventions during early life. Importantly, postnatal nutrition significantly modifies the phenotype induced by maternal diet. Sequelae of altered macro- or micronutrient intakes include altered nephron count, blood pressure dysregulation, altered sodium handling, endothelial dysfunction, inflammation, mitochondrial dysfunction, and oxidative stress. In addition, renal prostaglandin metabolism as well as renal AMPK, mTOR, and PPAR signaling can be affected and the renin-angiotensin-aldosterone system may be dysregulated. Lately, the influence of early-life diet on gut microbiota leading to altered short chain fatty acid profiles has been discussed in the etiology of arterial hypertension. Against this background, the preventive and therapeutic potential of perinatal nutritional interventions regarding kidney disease is an emerging field of research. Especially individuals at risk (e.g., newborns from mothers who suffered from malnutrition during gestation) could disproportionately benefit from well-targeted dietary interventions.
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Affiliation(s)
- Eva Nüsken
- Department of Pediatrics and Adolescent Medicine, Medical Faculty and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
| | - Jenny Voggel
- Department of Pediatrics and Adolescent Medicine, Medical Faculty and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Gregor Fink
- Department of Pediatrics and Adolescent Medicine, Medical Faculty and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Jörg Dötsch
- Department of Pediatrics and Adolescent Medicine, Medical Faculty and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Kai-Dietrich Nüsken
- Department of Pediatrics and Adolescent Medicine, Medical Faculty and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
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6
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Intact in vivo visualization of telencephalic microvasculature in medaka using optical coherence tomography. Sci Rep 2020; 10:19831. [PMID: 33199719 PMCID: PMC7669881 DOI: 10.1038/s41598-020-76468-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 10/28/2020] [Indexed: 11/09/2022] Open
Abstract
To date, various human disease models in small fish-such as medaka (Oryzias lapties)-have been developed for medical and pharmacological studies. Although genetic and environmental homogeneities exist, disease progressions can show large individual differences in animal models. In this study, we established an intact in vivo angiographic approach and explored vascular networks in the telencephalon of wild-type adult medaka using the spectral-domain optical coherence tomography. Our approach, which required neither surgical operations nor labeling agents, allowed to visualize blood vessels in medaka telencephala as small as about 8 µm, that is, almost the size of the blood cells of medaka. Besides, we could show the three-dimensional microvascular distribution in the medaka telencephalon. Therefore, the intact in vivo imaging via optical coherence tomography can be used to perform follow-up studies on cerebrovascular alterations in metabolic syndrome and their associations with neurodegenerative disease models in medaka.
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7
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Matsukura T, Inaba C, Weygant EA, Kitamura D, Janknecht R, Matsumoto H, Hyink DP, Kashiwada S, Obara T. Extracellular vesicles from human bone marrow mesenchymal stem cells repair organ damage caused by cadmium poisoning in a medaka model. Physiol Rep 2020; 7:e14172. [PMID: 31325249 PMCID: PMC6642321 DOI: 10.14814/phy2.14172] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 12/12/2022] Open
Abstract
Treatment modalities for kidney disease caused by long-term exposure to heavy metals, such as cadmium (Cd), are limited. Often, chronic, long-term environmental exposure to heavy metal is not recognized in the early stages; therefore, chelation therapy is not an effective option. Extracellular vesicles (EVs) derived from stem cells have been demonstrated to reduce disease pathology in both acute and chronic kidney disease models. To test the ability of EVs derived from human bone marrow mesenchymal stem cells (hBM-MSCs) to treat Cd damage, we generated a Cd-exposed medaka model. This model develops heavy metal-induced cell damage in various organs and tissues, and shows decreased overall survival. Intravenous injection of highly purified EVs from hBM-MSCs repaired the damage to apical and basolateral membranes and mitochondria of kidney proximal tubules, glomerular podocytes, bone deformation, and improved survival. Our system also serves as a model with which to study age- and sex-dependent cell injuries of organs caused by various agents and diseases. The beneficial effects of EVs on the tissue repair process, as shown in our novel Cd-exposed medaka model, may open new broad avenues for interventional strategies.
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Affiliation(s)
- Tomomi Matsukura
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Department of Life Sciences, Toyo University, Gunma, Japan
| | - Chisako Inaba
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Esther A Weygant
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Daiki Kitamura
- Department of Life Sciences, Toyo University, Gunma, Japan
| | - Ralf Janknecht
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Hiroyuki Matsumoto
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Clinical Proteomics and Gene Therapy Laboratory, Kurume University Graduate School of Medicine, Kurume, Japan
| | - Deborah P Hyink
- Department of Medicine, Baylor College of Medicine, Houston, Texas
| | | | - Tomoko Obara
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
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8
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Zhu M, Chernick M, Rittschof D, Hinton DE. Chronic dietary exposure to polystyrene microplastics in maturing Japanese medaka (Oryzias latipes). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 220:105396. [PMID: 31927063 DOI: 10.1016/j.aquatox.2019.105396] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/16/2019] [Accepted: 12/19/2019] [Indexed: 05/12/2023]
Abstract
Fish studies report consumption of microplastics (MPs) in the field, and concern exists over associated risks. However, laboratory studies with adult fish are scarce. In this study, outbred and see-through Japanese medaka (Oryzias latipes) were fed diets amended with 500, 1000, or 2000 μg/g 10 μm fluorescent spherical polystyrene microplastics (MPs) for 10 weeks during their maturation from juveniles to spawning adults. No behavioral changes, growth differences, or mortalities occurred. In vivo examinations and histologic sections showed no evidence of translocation of MPs from the gut to other internal organs. Mature females experienced dose-dependent decreases in egg number. Scanning electron microscopic examination of gills and gut revealed MPs in both areas. Swollen enterocytes were observed on apices of gut folds only in exposed fish. These were particularly apparent in foreguts of the high exposure group. Enterocytes with eroded brush borders were found in foregut of high and medium exposure groups. Increased mucus production, in long strands and sheets, was seen over primary and secondary lamellae of gills. Histological analysis showed alteration in buccal cavity, kidney, and spleen. Thickening and roughening of epithelium in headgut and pharynx and cellular alterations in spleen occurred. Head kidney was the primary site of alteration. Glomerulopathy and nephrogenesis were observed in exposed fish, increasing in severity with exposure level.
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Affiliation(s)
- Mei Zhu
- Integrated Toxicology & Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC 27708, USA; Inner Mongolia University of Finance and Economics, Hohhot, Inner Mongolia 010051, China
| | - Melissa Chernick
- Integrated Toxicology & Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC 27708, USA
| | - Daniel Rittschof
- Integrated Toxicology & Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC 27708, USA; Duke University Marine Laboratory, Nicholas School of the Environment, Duke University, Beaufort, NC 28516, USA
| | - David E Hinton
- Integrated Toxicology & Environmental Health Program, Nicholas School of the Environment, Duke University, Durham, NC 27708, USA.
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9
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Sayed AEDH, Kotb AM, Oda S, Kashiwada S, Mitani H. Protective effect of p53 knockout on 4-nonylphenol-induced nephrotoxicity in medaka (Oryzias latipes). CHEMOSPHERE 2019; 236:124314. [PMID: 31310970 DOI: 10.1016/j.chemosphere.2019.07.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 02/07/2023]
Abstract
In the past few decades, environmental pollutants have become common because of misused nonionic surfactants and detergents. Nonylphenol ethoxylates (NPs) are one of the most important contaminants of water. Therefore, the present study aimed to investigate the protective blocking effect of apoptosis (deficient P53 gene) on 4-nonylphenol (4-NP)-induced nephrotoxicity of medaka (Oryzias latipes). We divided 36 fish into six groups: two different control groups of wild type (Wt; Hd-rR) control and p53 (-/-) control, and four different treated with 4-nonylphenol (50 μg/L and 100 μg/L) for 15 days. Histology, immunochemistry, and TUNEL assays confirmed that 4-NP causes nephrotoxicity. Our results showed that 4-NP administration significantly disturbed the kidney structure and function and 4-NP-treated fish showed dilated glomerular vessels, had less glomerular cellular content, decreased expression of glomerular proteins, and an increased level of apoptosis compared with a Wt control group (P < 0.05). As p53 is an apoptotic inducer, some protection in p53-deficient medaka was found as nephrotoxic effects of 4-NP were minimized significantly. Our study demonstrated for the first time to our knowledge that 4-NP induces apoptosis, causing nephrotoxicity in medaka. We found that blocking apoptosis blocking was able to protect the kidney from the toxic effects of 4-NP.
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Affiliation(s)
- Alaa El-Din H Sayed
- Zoology Department, Faculty of Science, Assiut University, 71516, Assiut, Egypt.
| | - Ahmed M Kotb
- Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assiut University, 71516 Assiut, Egypt
| | - Shoji Oda
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8562, Japan
| | - Shosaku Kashiwada
- Graduate School of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura, Gunma 374-0193, Japan
| | - Hiroshi Mitani
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8562, Japan
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10
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Nagoya T, Kamimura K, Goto R, Shinagawa-Kobayashi Y, Niwa Y, Kimura A, Sakai N, Ko M, Nishina H, Terai S. Inhibition of sodium-glucose cotransporter 2 ameliorates renal injury in a novel medaka model of nonalcoholic steatohepatitis-related kidney disease. FEBS Open Bio 2019; 9:2016-2024. [PMID: 31561285 PMCID: PMC6886305 DOI: 10.1002/2211-5463.12734] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/08/2019] [Accepted: 09/25/2019] [Indexed: 12/19/2022] Open
Abstract
The effect of sodium‐glucose cotransporter 2 inhibitor (SGLT2I) on nonalcoholic steatohepatitis (NASH) has been reported, but there are few studies on its effect on NASH‐related renal injury. In this study, we examined the effect of SGLT2I using a novel medaka fish model of NASH‐related kidney disease, which was developed by feeding the d‐rR/Tokyo strain a high‐fat diet. SGLT2I was administered by dissolving it in water of the feeding tank. SGLT2I ameliorates macrophage accumulation and oxidative stress and maintained mitochondrial function in the kidney. The results demonstrate the effect of SGLT2I on NASH‐related renal injury and the usefulness of this novel animal model for research into NASH‐related complications. Here, we demonstrate that the highly specific sodium‐glucose cotransporter 2 inhibitor (SGLT2I) prevented the progression of nonalcoholic steatohepatitis (NASH)‐related renal injury in a medaka fish model of NASH‐related kidney disease. SGLT2I ameliorates oxidative stress and macrophage accumulation and maintained mitochondrial function in renal tubules.![]()
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Affiliation(s)
- Takuro Nagoya
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
| | - Kenya Kamimura
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
| | - Ryo Goto
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
| | - Yoko Shinagawa-Kobayashi
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
| | - Yusuke Niwa
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
| | - Atsushi Kimura
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
| | - Norihiro Sakai
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
| | - Masayoshi Ko
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
| | - Hiroshi Nishina
- Department of Developmental and Regenerative Biology, Medical Research Institute, Tokyo Medical and Dental University, Japan
| | - Shuji Terai
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Japan
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11
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Alnafea H, Vahkal B, Zelmer CK, Yegorov S, Bogerd J, Good SV. Japanese medaka as a model for studying the relaxin family genes involved in neuroendocrine regulation: Insights from the expression of fish-specific rln3 and insl5 and rxfp3/4-type receptor paralogues. Mol Cell Endocrinol 2019; 487:2-11. [PMID: 30703485 DOI: 10.1016/j.mce.2019.01.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/17/2019] [Accepted: 01/19/2019] [Indexed: 12/14/2022]
Abstract
The goal of this paper is to establish Japanese medaka (Oryzias latipes) as a model for relaxin family peptide research, particularly for studying the functions of RLN3 and INSL5, hormones playing roles in neuroendocrine regulation. Medaka, like other teleosts, retained duplicate copies of rln3, insl5 and their rxfp3/4-type receptors following fish-specific whole genome duplication (WGD) and paralogous copies of these genes may have sub-functionalised providing an intuitive model for teasing apart the pleiotropic roles of the corresponding genes in mammals. To this end, we provide experimental evidence for the expression of the relaxin family genes in medaka that had previously only been identified in-silico, confirm the gene structure of five of the ligand genes, characterise gene expression across multiple tissues and during embryonic development, perform in situ hybridization with anti-sense insl5a on embryos and in adult brain and intestinal samples, and compare these results to the data available in zebrafish. We find broad similarities but also some differences in the expression of relaxin family genes in zebrafish versus medaka, and find support for the hypothesis that the rln3a/rln3b and insl5a/insl5b paralogues have been subfunctionalized. Given that medaka has a suite of relaxin family genes more similar to other teleosts, and has retained the gene for rxfp4 (which is lost in zebrafish), our results suggest that O. latipes may be a good model for delineating the ancestral function of the relaxin family genes involved in neuroendocrine regulation.
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Affiliation(s)
- Hend Alnafea
- Department of Biology, The University of Winnipeg, Winnipeg, MB, Canada
| | - Brett Vahkal
- Department of Biology, The University of Winnipeg, Winnipeg, MB, Canada
| | - C Kellie Zelmer
- Department of Biology, The University of Winnipeg, Winnipeg, MB, Canada
| | - Sergey Yegorov
- Department of Immunology, The University of Toronto, Toronto, ON, Canada
| | - Jan Bogerd
- Reproductive Biology Group, Division of Developmental Biology, Department of Biology, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Sara V Good
- Department of Biology, The University of Winnipeg, Winnipeg, MB, Canada; Department of Biology, The University of Manitoba, Winnipeg, MB, Canada.
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12
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Qiu X, Iwasaki N, Chen K, Shimasaki Y, Oshima Y. Tributyltin and perfluorooctane sulfonate play a synergistic role in promoting excess fat accumulation in Japanese medaka (Oryzias latipes) via in ovo exposure. CHEMOSPHERE 2019; 220:687-695. [PMID: 30605811 DOI: 10.1016/j.chemosphere.2018.12.191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/26/2018] [Accepted: 12/28/2018] [Indexed: 06/09/2023]
Abstract
The ubiquitous environmental obesogens tributyltin (TBT) and perfluorooctane sulfonate (PFOS) may accumulate in parent and be transferred to their offspring, resulting in trans-generational adverse effects. In this study, we investigated the combined toxic and obesogenic effects of TBT and PFOS on the early life stages of Japanese medaka (Oryzias latipes). In ovo nanoinjection was used to simulate the maternal transfer process. Doses were controlled at 0, 0.05, 0.5, and 2.5 ng/egg (TBT) and at 0, 0.05, 0.5, and 5.0 ng/egg (PFOS), with a full factorial design for mixture formulations. Relatively high doses of agents in mixtures were needed to induce significant mortality (TBT ≥ 0.5 ng/egg) or delayed hatching (PFOS = 5.0 ng/egg) of embryos. The interaction between TBT and PFOS in mixtures had significant effects on the observed hatching delay, but not on acute mortality. Compared with controls, separate exposure to TBT (or PFOS) notably elevated adipose areas at the doses of 0.05 and 0.5 ng/egg, but not at the highest doses. Combined exposure significantly promoted the fat accumulation in newly hatched larvae, even when the doses of TBT and PFOS were both at the levels that did not show obesogenic effect. The interactive effect of TBT and PFOS could aggravate the total obesogenic effect of their mixtures, indicating a synergistic interaction. These results highlight the importance of paying close attention to interaction effects when addressing the impacts of mixtures of environmental obesogens.
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Affiliation(s)
- Xuchun Qiu
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, PR China; Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581, Japan
| | - Naoto Iwasaki
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581, Japan
| | - Kun Chen
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, PR China; Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581, Japan
| | - Yohei Shimasaki
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581, Japan
| | - Yuji Oshima
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581, Japan.
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13
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Saito T, Tanaka Y, Morishita Y, Ishibashi K. Proteomic analysis of AQP11-null kidney: Proximal tubular type polycystic kidney disease. Biochem Biophys Rep 2017; 13:17-21. [PMID: 29204517 PMCID: PMC5709289 DOI: 10.1016/j.bbrep.2017.11.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 12/28/2022] Open
Abstract
Autosomal Dominant Polycystic Kidney Disease (ADPKD) is caused by the mutation of polycystins (PC-1 or PC-2), in which cysts start from the collecting duct to extend to all nephron segments with eventual end stage renal failure. The cyst development is attenuated by a vasopressin V2 receptor antagonist tolvaptan which, however, will not affect proximal tubule cysts devoid of V2 receptor. Aquaporin-11 (AQP11) is expressed selectively in the proximal tubule of the kidney and AQP11-null kidneys have a disruptive PC-1 trafficking to the plasma membrane to develop polycystic kidneys. Here, we analyzed AQP11-null kidneys at the beginning of cyst formation by quantitative proteomic analysis using Tandem Mass Tag (TMT). Among ~ 1200 identified proteins, 124 proteins were differently expressed by > 1.5 or < 0.8 fold change. A pancreatic stone inhibitor or a growth factor, lithostathine-1 (Reg1) was most enhanced by 5 folds which was confirmed by western blot, while mitochondria-related proteins were downregulated. The identified proteins will be new target molecules for the treatment of proximal tubular cysts and helpful to explore the functional roles of AQP11 in the kidney. Proteomic analysis of the kidney from AQP11-null mice of proximal tubular specific ADPKD. Among ~ 1200 identified proteins, 124 proteins were differently expressed by > 1.5 or < 0.8 fold change. Mitochondrial proteins were downregulated reflecting a functional mitochondrial damage in cystic epithelia. Reg1 protein was most enhanced by 5 folds which was confirmed by western blot.
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Affiliation(s)
- Tatsuya Saito
- Department of Pathophysiology, Faculty of Clinical Pharmacy, Meiji Pharmaceutical University, Tokyo 204-8588, Japan
- Corresponding author.
| | - Yasuko Tanaka
- Department of Pathophysiology, Faculty of Clinical Pharmacy, Meiji Pharmaceutical University, Tokyo 204-8588, Japan
| | - Yoshiyuki Morishita
- Department of Nephrology, Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan
| | - Kenichi Ishibashi
- Department of Pathophysiology, Faculty of Clinical Pharmacy, Meiji Pharmaceutical University, Tokyo 204-8588, Japan
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14
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Schartl M, Walter RB. Xiphophorus and Medaka Cancer Models. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 916:531-52. [PMID: 27165369 DOI: 10.1007/978-3-319-30654-4_23] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Besides recently developed zebrafish cancer models, other fish species have been employed for many years as cancer models in laboratory studies. Two models, namely in Xiphophorus and medaka have proven useful in providing important clues to cancer etiology. Medaka is a complementary model to zebrafish in many areas of research since it offers similar resources and experimental tools. Xiphophorus provides the advantages of a natural ("evolutionary mutant") model with established genetics. Xiphophorus hybrids can develop spontaneous and radiation or carcinogen induced cancers. This chapter describes the tumor models in both species, which mainly focus on melanoma, and summarizes the main findings and future research directions.
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Affiliation(s)
- Manfred Schartl
- Physiologische Chemie, Universität Würzburg, Biozentrum, Am Hubland, D-97074, Würzburg, Germany. .,Texas Institute for Advanced Study and Department of Biology, Texas A&M University, 100 Butler Hall, College Station, Texas, 77843-3258, USA.
| | - Ronald B Walter
- Chemistry and Biochemistry, 419A Centennial Hall, Texas State University, 601 University Drive, San Marcos, TX, 78666-4616, USA
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15
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Anatomical features for the adequate choice of experimental animal models in biomedicine: I. Fishes. Ann Anat 2016; 205:75-84. [DOI: 10.1016/j.aanat.2016.02.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 12/01/2015] [Accepted: 02/01/2016] [Indexed: 11/21/2022]
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16
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Growth of rare minnows (Gobiocypris rarus) fed different amounts of dietary protein and lipids. Lab Anim (NY) 2016; 45:105-11. [DOI: 10.1038/laban.936] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 05/13/2015] [Indexed: 01/17/2023]
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17
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Truter JC, van Wyk JH, Oberholster PJ, Botha AM, Luus-Powell WJ. The expression of selected genes linked to metabolic homeostasis in obese pansteatitis-suffering Mozambique tilapia, Oreochromis mossambicus (Peters). JOURNAL OF FISH DISEASES 2016; 39:69-85. [PMID: 25413848 DOI: 10.1111/jfd.12324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 10/06/2014] [Accepted: 10/06/2014] [Indexed: 06/04/2023]
Abstract
The Oreochromis mossambicus (Peters) population inhabiting Lake Loskop, South Africa, is characterized by a high incidence of obesity and pansteatitis. We investigated potential links between the impaired health of Lake Loskop O. mossambicus and the endocrine system by assessing the expression of selected genes associated with the thyroid and adrenal endocrine axes as well as peroxisome proliferator-activated receptor gamma (pparg). Moreover, contaminant-induced thyroid and/or metabolic modulation in Lake Loskop water was evaluated using juvenile O. mossambicus in laboratory exposures. The expression of thyroid hormone receptor alpha (thra) and type 2 deiodinase (dio2) was higher in Lake Loskop O. mossambicus than fish from another population, suggesting a degree of thyroid disruption. The altered gene expression may be a consequence, rather than cause of obesity. Expression of dio2 and pparg was higher in juvenile O. mossambicus exposed to unfiltered compared to filtered lake water, and our data suggest fasting as causative factor. Micro-organism abundance can therefore be a confounding factor in studies applying molecular markers to test for thyroid modulation by environmental waters. Pansteatitis was not a significant source of variance in the expression of any of the genes investigated, suggesting that the disease is not associated with disrupted endocrine signalling.
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Affiliation(s)
- J C Truter
- Department of Botany and Zoology, Stellenbosch University, Stellenbosch, South Africa
| | - J H van Wyk
- Department of Botany and Zoology, Stellenbosch University, Stellenbosch, South Africa
| | - P J Oberholster
- CSIR Natural Resources and the Environment, Stellenbosch, South Africa
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
| | - A-M Botha
- Department of Genetics, Stellenbosch University, Stellenbosch, South Africa
| | - W J Luus-Powell
- Department of Biodiversity, University of Limpopo, Sovenga, South Africa
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18
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Walter RB, Obara T. Workshop report: The medaka model for comparative assessment of human disease mechanisms. Comp Biochem Physiol C Toxicol Pharmacol 2015; 178:156-162. [PMID: 26099189 PMCID: PMC4662895 DOI: 10.1016/j.cbpc.2015.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 06/08/2015] [Accepted: 06/09/2015] [Indexed: 11/29/2022]
Abstract
Results of recent studies showing the utility of medaka as a model of various human disease states were presented at the 7th Aquatic Models of Human Disease Conference (December 13-18, 2014, Austin, TX). This conference brought together many of the most highly regarded national and international scientists that employ the medaka model in their investigations. To take advantage of this opportunity, a cohort of established medaka researchers were asked to stay an extra day and represent the medaka scientific community in a workshop entitled "The Medaka Model for Comparative Assessment of Human Disease Mechanisms." The central purpose of this medaka workshop was to assess current use and project the future resource needs of the American medaka research community. The workshop sought to spur discussions of issues that would promote more informative comparative disease model studies. Finally, workshop attendees met together to propose, discuss, and agree on recommendations regarding the most effective research resources needed to enable US scientists to perform experiments leading to impacting experimental results that directly translate to human disease. Consistent with this central purpose, the workshop was divided into two sessions of invited speakers having expertise and experience in the session topics. The workshop hosted 20 scientific participants (Appendices 1 and 2), and of these, nine scientists presented formal talks. Here, we present a summary report stemming from workshop presentations and subsequent round table discussions and forward recommendations from this group that we believe represent views of the overall medaka research community.
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Affiliation(s)
- Ronald B Walter
- Department of Chemistry and Biochemistry, Xiphophorus Genetic Stock Center, Texas State University, 419 Centennial Hall, San Marcos, TX 78666, USA.
| | - Tomoko Obara
- Department of Cell Biology, University of Oklahoma Health Sciences Center, BRC Room 256, 975 N.E. 10th St., Oklahoma City, OK 73104-5419, USA.
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19
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Webb CF, Ratliff ML, Powell R, Wirsig-Wiechmann CR, Lakiza O, Obara T. A developmentally plastic adult mouse kidney cell line spontaneously generates multiple adult kidney structures. Biochem Biophys Res Commun 2015; 463:1334-1340. [PMID: 26111446 DOI: 10.1016/j.bbrc.2015.06.130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 06/19/2015] [Indexed: 12/21/2022]
Abstract
Despite exciting new possibilities for regenerative therapy posed by the ability to induce pluripotent stem cells, recapitulation of three-dimensional kidneys for repair or replacement has not been possible. ARID3a-deficient mouse tissues generated multipotent, developmentally plastic cells. Therefore, we assessed the adult mouse ARID3a-/- kidney cell line, KKPS5, which expresses renal progenitor surface markers as an alternative cell source for modeling kidney development. Remarkably, these cells spontaneously developed into multicellular nephron-like structures in vitro, and engrafted into immunocompromised medaka mesonephros, where they formed mouse nephron structures. These data implicate KKPS5 cells as a new model system for studying kidney development.
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Affiliation(s)
- Carol F Webb
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Immunobiology and Cancer Research, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.,Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Michelle L Ratliff
- Immunobiology and Cancer Research, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Rebecca Powell
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | | | - Olga Lakiza
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Tomoko Obara
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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20
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Naito S, Pippin JW, Shankland SJ. The glomerular parietal epithelial cell's responses are influenced by SM22 alpha levels. BMC Nephrol 2014; 15:174. [PMID: 25376243 PMCID: PMC4247743 DOI: 10.1186/1471-2369-15-174] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 10/22/2014] [Indexed: 12/17/2022] Open
Abstract
Background Studies have shown in several diseases initially affecting podocytes, that the neighboring glomerular parietal epithelial cells (PECs) are secondarily involved. The PEC response might be reparative under certain circumstances, yet injurious under others. The factors governing these are not well understood. We have shown that SM22α, an actin-binding protein considered a marker of smooth muscle differentiation, is upregulated in podocytes and PECs in several models of podocyte disease. However, the impact of SM22α levels on PECs is not known. Methods Experimental glomerular disease, characterized by primary podocyte injury, was induced in aged-matched SM22α +/+ and SM22α -/- mice by intraperitoneal injection of sheep anti-rabbit glomeruli antibody. Immunostaining methods were employed on days 7 and 14 of disease. Results The number of PEC transition cells, defined as cells co-expressing a PEC protein (PAX2) and podocyte protein (Synaptopodin) was higher in diseased SM22α -/- mice compared with SM22α +/+ mice. WT1 staining along Bowman’s capsule is higher in diseased SM22α -/- mice. This was accompanied by increased PEC proliferation (measured by ki-67 staining), and an increase in immunostaining for the progenitor marker NCAM, in a subpopulation of PECs in diseased SM22α -/- mice. In addition, immunostaining for vimentin and alpha smooth muscle actin, markers of epithelial-to-mesenchymal transition (EMT), was lower in diseased SM22α -/- mice compared to diseased SM22α+/+ mice. Conclusion SM22α levels may impact how PECs respond following a primary podocyte injury in experimental glomerular disease. Absent/lower levels favor an increase in PEC transition cells and PECs expressing a progenitor marker, and a lower EMT rate compared to SM22α +/+ mice, where SM22 levels are markedly increased in PECs.
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Affiliation(s)
| | | | - Stuart J Shankland
- Division of Nephrology Department of Medicine, University of Washington School of Medicine, Box 356521, 1959 NE Pacific St,, Seattle, WA 98195-6521, USA.
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Kanasaki K, Kitada M, Kanasaki M, Koya D. The biological consequence of obesity on the kidney. Nephrol Dial Transplant 2013; 28 Suppl 4:iv1-7. [PMID: 23743020 DOI: 10.1093/ndt/gft098] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Obesity is a worldwide epidemic that is associated with several health issues, including kidney diseases. A specific kidney disease, referred to as obesity-related glomerulopathy, has been described in earlier publications. Obesity can affect the prognosis of other types of kidney diseases. Body-weight reduction with caloric restriction is an essential therapy, although strictly controlling food intake coupled with an appropriate evaluation is challenging. Low birthweight can be an important factor for obesity and results in kidney dysfunction. In this review, we analyse the consequences of obesity on kidney prognosis and potential strategies for combating obesity-associated kidney injury.
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Affiliation(s)
- Keizo Kanasaki
- Division of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa, Japan
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