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Yadav A, Verhaegen S, Filis P, Domanska D, Lyle R, Sundaram AYM, Leithaug M, Østby GC, Aleksandersen M, Berntsen HF, Zimmer KE, Fowler PA, Paulsen RE, Ropstad E. Exposure to a human relevant mixture of persistent organic pollutants or to perfluorooctane sulfonic acid alone dysregulates the developing cerebellum of chicken embryo. Environ Int 2022; 166:107379. [PMID: 35792514 DOI: 10.1016/j.envint.2022.107379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/07/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Prenatal exposure to persistent organic pollutants (POPs) is associated with neurodevelopmental disorders. In the present study, we explored whether a human-relevant POP mixture affects the development of chicken embryo cerebellum. We used a defined mixture of 29 POPs, with chemical composition and concentrations based on blood levels in the Scandinavian population. We also evaluated exposure to a prominent compound in the mixture, perfluorooctane sulfonic acid (PFOS), alone. Embryos (n = 7-9 per exposure group) were exposed by injection directly into the allantois at embryonic day 13 (E13). Cerebella were isolated at E17 and subjected to morphological, RNA-seq and shot-gun proteomics analyses. There was a reduction in thickness of the molecular layer of cerebellar cortex in both exposure scenarios. Exposure to the POP mixture significantly affected expression of 65 of 13,800 transcripts, and 43 of 2,568 proteins, when compared to solvent control. PFOS alone affected expression of 80 of 13,859 transcripts, and 69 of 2,555 proteins. Twenty-five genes and 15 proteins were common for both exposure groups. These findings point to alterations in molecular events linked to retinoid X receptor (RXR) signalling, neuronal cell proliferation and migration, cellular stress responses including unfolded protein response, lipid metabolism, and myelination. Exposure to the POP mixture increased methionine oxidation, whereas PFOS decreased oxidation. Several of the altered genes and proteins are involved in a wide variety of neurological disorders. We conclude that POP exposure can interfere with fundamental aspects of neurodevelopment, altering molecular pathways that are associated with adverse neurocognitive and behavioural outcomes.
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Affiliation(s)
- Ajay Yadav
- Department of Production Animal Clinical Sciences, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway; Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, NO-0316 Oslo, Norway.
| | - Steven Verhaegen
- Department of Production Animal Clinical Sciences, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway.
| | - Panagiotis Filis
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK.
| | - Diana Domanska
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Pathology, Oslo University Hospital-Rikshospitalet, Oslo, Norway.
| | - Robert Lyle
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway; Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway.
| | - Arvind Y M Sundaram
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway.
| | - Magnus Leithaug
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway.
| | - Gunn Charlotte Østby
- Department of Production Animal Clinical Sciences, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway.
| | - Mona Aleksandersen
- Department of Preclinical Sciences and Pathology, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway.
| | - Hanne Friis Berntsen
- Department of Production Animal Clinical Sciences, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway; National Institute of Occupational Health, P.O. Box 5330 Majorstuen, NO-0304, Oslo, Norway.
| | - Karin Elisabeth Zimmer
- Department of Preclinical Sciences and Pathology, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway.
| | - Paul A Fowler
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK.
| | - Ragnhild Elisabeth Paulsen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, NO-0316 Oslo, Norway.
| | - Erik Ropstad
- Department of Production Animal Clinical Sciences, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway.
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Toro CA, Hansen J, Siddiq MM, Johnson K, Zhao W, Azulai D, Das DK, Bauman W, Sebra R, Cai D, Iyengar R, Cardozo CP. The Human ApoE4 Variant Reduces Functional Recovery and Neuronal Sprouting After Incomplete Spinal Cord Injury in Male Mice. Front Cell Neurosci 2021; 15:626192. [PMID: 33679326 PMCID: PMC7930340 DOI: 10.3389/fncel.2021.626192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/01/2021] [Indexed: 01/01/2023] Open
Abstract
Spinal cord injury (SCI) is a devastating form of neurotrauma. Patients who carry one or two apolipoprotein E (ApoE)4 alleles show worse functional outcomes and longer hospital stays after SCI, but the cellular and molecular underpinnings for this genetic link remain poorly understood. Thus, there is a great need to generate animal models to accurately replicate the genetic determinants of outcomes after SCI to spur development of treatments that improve physical function. Here, we examined outcomes after a moderate contusion SCI of transgenic mice expressing human ApoE3 or ApoE4. ApoE4 mice have worse locomotor function and coordination after SCI. Histological examination revealed greater glial staining in ApoE4 mice after SCI associated with reduced levels of neuronal sprouting markers. Bulk RNA sequencing revealed that subcellular processes (SCPs), such as extracellular matrix organization and inflammatory responses, were highly ranked among upregulated genes at 7 days after SCI in ApoE4 variants. Conversely, SCPs related to neuronal action potential and neuron projection development were increased in ApoE3 mice at 21 days. In summary, our results reveal a clinically relevant SCI mouse model that recapitulates the influence of ApoE genotypes on post SCI function in individuals who carry these alleles and suggest that the mechanisms underlying worse recovery for ApoE4 animals involve glial activation and loss of sprouting and synaptic activity.
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Affiliation(s)
- Carlos A Toro
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, New York, NY, United States.,Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Spinal Cord Injuries and Disorders System of Care, United States Department of Veterans Affairs, New York, NY, United States
| | - Jens Hansen
- Department of Pharmacological Sciences, Institute for Systems Biomedicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Mustafa M Siddiq
- Department of Pharmacological Sciences, Institute for Systems Biomedicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Kaitlin Johnson
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, New York, NY, United States.,Spinal Cord Injuries and Disorders System of Care, United States Department of Veterans Affairs, New York, NY, United States
| | - Wei Zhao
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, New York, NY, United States.,Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Spinal Cord Injuries and Disorders System of Care, United States Department of Veterans Affairs, New York, NY, United States
| | - Daniella Azulai
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, New York, NY, United States.,Spinal Cord Injuries and Disorders System of Care, United States Department of Veterans Affairs, New York, NY, United States
| | - Dibash K Das
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, New York, NY, United States.,Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Spinal Cord Injuries and Disorders System of Care, United States Department of Veterans Affairs, New York, NY, United States
| | - William Bauman
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, New York, NY, United States.,Spinal Cord Injuries and Disorders System of Care, United States Department of Veterans Affairs, New York, NY, United States
| | - Robert Sebra
- Department of Genetics and Genomic Studies, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Dongming Cai
- Department of Neurology, James J. Peters VA Medical Center, New York, NY, United States.,Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ravi Iyengar
- Department of Pharmacological Sciences, Institute for Systems Biomedicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Christopher P Cardozo
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters VA Medical Center, New York, NY, United States.,Department of Rehabilitative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Yang H, Zhang L, Liu S. Determination of reference genes for ovine pulmonary adenocarcinoma infected lung tissues using RNA-seq transcriptome profiling. J Virol Methods 2020; 284:113923. [PMID: 32615131 DOI: 10.1016/j.jviromet.2020.113923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 02/25/2020] [Accepted: 06/25/2020] [Indexed: 01/08/2023]
Abstract
Ovine pulmonary adenocarcinoma (OPA) is a globally occurring tumor of lung epithelium which seriously affects the development of sheep farming. In our research, lung tissues of 3 naturally infected OPA individuals and 3 healthy individuals (2-4 years old) were collected. RNA was extracted for transcriptome analysis and reference gene selection. According to transcriptome analysis, 7 candidate reference genes (eukaryotic translation initiation factor 1, EIF1; glyceraldehyde-3-phosphate dehydrogenase, GAPDH; beta-actin, ACTB; GABA Type A receptor-associated protein, GABARAP; activating transcription factor 4, ATF4; ribosomal protein S15, RPS15; and Y-Box binding protein 1, YBX1) showed fragments per kilobase of transcript per million fragments mapped (FPKM) values > 200.0 and standard errors of the means (SEM) < 20.0. Expression of the above candidate reference genes was evaluated by Real-time quantitative polymerase chain reaction (RT-qPCR) combined with the analysis using GeNorm, NormFinder, and BestKeeper software. Comprehensive analysis of the results showed that ACTB was the most stable one, followed by EIF1 and GABARAP. Then, expression stability of the above three genes were validated, suggesting as suitable reference genes in sheep lung tissue, in additional 30 OPA-affected lung tissues and 10 healthy ovine lung tissues. Finally, our findings will be helpful for the subsequent study on the tumorigenic mechanism of OPA.
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Affiliation(s)
- Hui Yang
- Veterinary Medicine College of Inner Mongolia Agricultural University, Zhao Wu Da Road 306#, Hohhot 010018, People's Republic of China; Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot 010018, People's Republic of China; Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Disease, Ministry of Agriculture, Hohhot 010018, People's Republic of China.
| | - Liang Zhang
- Veterinary Medicine College of Inner Mongolia Agricultural University, Zhao Wu Da Road 306#, Hohhot 010018, People's Republic of China; Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot 010018, People's Republic of China; Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Disease, Ministry of Agriculture, Hohhot 010018, People's Republic of China.
| | - Shuying Liu
- Veterinary Medicine College of Inner Mongolia Agricultural University, Zhao Wu Da Road 306#, Hohhot 010018, People's Republic of China; Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot 010018, People's Republic of China; Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Disease, Ministry of Agriculture, Hohhot 010018, People's Republic of China.
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Lefterov I, Wolfe CM, Fitz NF, Nam KN, Letronne F, Biedrzycki RJ, Kofler J, Han X, Wang J, Schug J, Koldamova R. APOE2 orchestrated differences in transcriptomic and lipidomic profiles of postmortem AD brain. Alzheimers Res Ther 2019; 11:113. [PMID: 31888770 PMCID: PMC6937981 DOI: 10.1186/s13195-019-0558-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 11/19/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND The application of advanced sequencing technologies and improved mass-spectrometry platforms revealed significant changes in gene expression and lipids in Alzheimer's disease (AD) brain. The results so far have prompted further research using "multi-omics" approaches. These approaches become particularly relevant, considering the inheritance of APOEε4 allele as a major genetic risk factor of AD, disease protective effect of APOEε2 allele, and a major role of APOE in brain lipid metabolism. METHODS Postmortem brain samples from inferior parietal lobule genotyped as APOEε2/c (APOEε2/carriers), APOEε3/3, and APOEε4/c (APOEε4/carriers), age- and gender-matched, were used to reveal APOE allele-associated changes in transcriptomes and lipidomes. Differential gene expression and co-expression network analyses were applied to identify up- and downregulated Gene Ontology (GO) terms and pathways for correlation to lipidomics data. RESULTS Significantly affected GO terms and pathways were determined based on the comparisons of APOEε2/c datasets to those of APOEε3/3 and APOEε4/c brain samples. The analysis of lists of genes in highly correlated network modules and of those differentially expressed demonstrated significant enrichment in GO terms associated with genes involved in intracellular proteasomal and lysosomal degradation of proteins, protein aggregates and organelles, ER stress, and response to unfolded protein, as well as mitochondrial function, electron transport, and ATP synthesis. Small nucleolar RNA coding units important for posttranscriptional modification of mRNA and therefore translation and protein synthesis were upregulated in APOEε2/c brain samples compared to both APOEε3/3 and APOEε4/c. The analysis of lipidomics datasets revealed significant changes in ten major lipid classes (exclusively a decrease in APOEε4/c samples), most notably non-bilayer-forming phosphatidylethanolamine and phosphatidic acid, as well as mitochondrial membrane-forming lipids. CONCLUSIONS The results of this study, despite the advanced stage of AD, point to the significant differences in postmortem brain transcriptomes and lipidomes, suggesting APOE allele associated differences in pathogenic mechanisms. Correlations within and between lipidomes and transcriptomes indicate coordinated effects of changes in the proteasomal system and autophagy-canonical and selective, facilitating intracellular degradation, protein entry into ER, response to ER stress, nucleolar modifications of mRNA, and likely myelination in APOEε2/c brains. Additional research and a better knowledge of the molecular mechanisms of proteostasis in the early stages of AD are required to develop more effective diagnostic approaches and eventually efficient therapeutic strategies.
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Affiliation(s)
- Iliya Lefterov
- Department of Environmental and Occupational Health, University of Pittsburgh, 130 De Soto Str., Pittsburgh, PA, 15261, USA.
| | - Cody M Wolfe
- Department of Environmental and Occupational Health, University of Pittsburgh, 130 De Soto Str., Pittsburgh, PA, 15261, USA
| | - Nicholas F Fitz
- Department of Environmental and Occupational Health, University of Pittsburgh, 130 De Soto Str., Pittsburgh, PA, 15261, USA
| | - Kyong Nyon Nam
- Department of Environmental and Occupational Health, University of Pittsburgh, 130 De Soto Str., Pittsburgh, PA, 15261, USA
| | - Florent Letronne
- Department of Environmental and Occupational Health, University of Pittsburgh, 130 De Soto Str., Pittsburgh, PA, 15261, USA
| | - Richard J Biedrzycki
- Department of Environmental and Occupational Health, University of Pittsburgh, 130 De Soto Str., Pittsburgh, PA, 15261, USA
| | - Julia Kofler
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15219, USA
| | - Xianlin Han
- Department of Medicine & Biochemistry, Barshop Institute for Longevity and Aging Studies, UT Health-San Antonio, San Antonio, TX, 78229, USA
| | - Jianing Wang
- Department of Medicine & Biochemistry, Barshop Institute for Longevity and Aging Studies, UT Health-San Antonio, San Antonio, TX, 78229, USA
| | - Jonathan Schug
- Department of Genetics, Functional Genomics Core, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Radosveta Koldamova
- Department of Environmental and Occupational Health, University of Pittsburgh, 130 De Soto Str., Pittsburgh, PA, 15261, USA.
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Wenger Y, Buzgariu W, Galliot B. Loss of neurogenesis in Hydra leads to compensatory regulation of neurogenic and neurotransmission genes in epithelial cells. Philos Trans R Soc Lond B Biol Sci 2016; 371:20150040. [PMID: 26598723 PMCID: PMC4685579 DOI: 10.1098/rstb.2015.0040] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Hydra continuously differentiates a sophisticated nervous system made of mechanosensory cells (nematocytes) and sensory-motor and ganglionic neurons from interstitial stem cells. However, this dynamic adult neurogenesis is dispensable for morphogenesis. Indeed animals depleted of their interstitial stem cells and interstitial progenitors lose their active behaviours but maintain their developmental fitness, and regenerate and bud when force-fed. To characterize the impact of the loss of neurogenesis in Hydra, we first performed transcriptomic profiling at five positions along the body axis. We found neurogenic genes predominantly expressed along the central body column, which contains stem cells and progenitors, and neurotransmission genes predominantly expressed at the extremities, where the nervous system is dense. Next, we performed transcriptomics on animals depleted of their interstitial cells by hydroxyurea, colchicine or heat-shock treatment. By crossing these results with cell-type-specific transcriptomics, we identified epithelial genes up-regulated upon loss of neurogenesis: transcription factors (Dlx, Dlx1, DMBX1/Manacle, Ets1, Gli3, KLF11, LMX1A, ZNF436, Shox1), epitheliopeptides (Arminins, PW peptide), neurosignalling components (CAMK1D, DDCl2, Inx1), ligand-ion channel receptors (CHRNA1, NaC7), G-Protein Coupled Receptors and FMRFRL. Hence epitheliomuscular cells seemingly enhance their sensing ability when neurogenesis is compromised. This unsuspected plasticity might reflect the extended multifunctionality of epithelial-like cells in early eumetazoan evolution.
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Affiliation(s)
- Y Wenger
- Department of Genetics and Evolution, Institute of Genetics and Genomics in Geneva (IGe3), Faculty of Sciences, University of Geneva, 30 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - W Buzgariu
- Department of Genetics and Evolution, Institute of Genetics and Genomics in Geneva (IGe3), Faculty of Sciences, University of Geneva, 30 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - B Galliot
- Department of Genetics and Evolution, Institute of Genetics and Genomics in Geneva (IGe3), Faculty of Sciences, University of Geneva, 30 quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
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