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Shetty V, Adelman ZN, Slotman MA. Effects of circadian clock disruption on gene expression and biological processes in Aedes aegypti. BMC Genomics 2024; 25:170. [PMID: 38347446 PMCID: PMC10863115 DOI: 10.1186/s12864-024-10078-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/01/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND This study explores the impact of disrupting the circadian clock through a Cycle gene knockout (KO) on the transcriptome of Aedes aegypti mosquitoes. The investigation aims to uncover the resulting alterations in gene expression patterns and physiological processes. RESULTS Transcriptome analysis was conducted on Cyc knockout (AeCyc-/-) and wild-type mosquitoes at four time points in a light-dark cycle. The study identified system-driven genes that exhibit rhythmic expression independently of the core clock machinery. Cyc disruption led to altered expression of essential clock genes, affecting metabolic processes, signaling pathways, stimulus responses and immune responses. Notably, gene ontology enrichment of odorant binding proteins, indicating the clock's role in sensory perception. The absence of Cyc also impacted various regulation of metabolic and cell cycle processes was observed in all time points. CONCLUSIONS The intricate circadian regulation in Ae. aegypti encompasses both core clock-driven and system-driven genes. The KO of Cyc gene instigated extensive gene expression changes, impacting various processes, thereby potentially affecting cellular and metabolic functions, immune responses, and sensory perception. The circadian clock's multifaceted involvement in diverse biological processes, along with its role in the mosquito's daily rhythms, forms a nexus that influences the vector's capacity to transmit diseases. These insights shed light on the circadian clock's role in shaping mosquito biology and behavior, opening new avenues for innovative disease control strategies.
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Affiliation(s)
- Vinaya Shetty
- Department of Entomology, Texas A&M University, College station, TX, 77843, USA.
| | - Zach N Adelman
- Department of Entomology, Texas A&M University, College station, TX, 77843, USA
| | - Michel A Slotman
- Department of Entomology, Texas A&M University, College station, TX, 77843, USA
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2
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Amador-Lara F, Andrade-Villanueva JF, Vega-Magaña N, Peña-Rodríguez M, Alvarez-Zavala M, Sanchez-Reyes K, Toscano-Piña M, Peregrina-Lucano AA, Del Toro-Arreola S, González-Hernández LA, Bueno-Topete MR. Gut microbiota from Mexican patients with metabolic syndrome and HIV infection: an inflammatory profile. J Appl Microbiol 2022; 132:3839-3852. [PMID: 35218591 DOI: 10.1111/jam.15505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 09/29/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 11/30/2022]
Abstract
AIM A remarkable increase in metabolic syndrome (MetS) has occurred in HIV-infected subjects. Gut dysbiosis is involved in the pathogenesis of metabolic disorders. Therefore, the aim is to explore the profile of the gut microbiota in Mexican population with HIV infection and MetS. METHODS AND RESULTS Thirty HIV-infected patients with MetS compared to a group of 30 patients without MetS, treated with integrase inhibitors and undetectable viral load were included in the study. Stool samples were analysed by 16S rRNA next-generation sequencing. High sensitivity C-reactive protein >3mg l-1 and higher scores in cardiometabolic indices were associated with MetS. The group with MetS was characterized by a decrease in α-diversity, higher abundance of Enterobacteriaceae and Prevotella, as well as a dramatic decrease in bacteria producing short-chain fatty acids. Prevotella negatively correlated with Akkermansia, Lactobacillus, and Anaerostipes. Interestingly, the group without MetS presented higher abundance of Faecalibacterium, Ruminococcus, Anaerofilum, Oscillospira and Anaerostipes. Functional pathways related to energy metabolism and inflammation were increased in the group with MetS. CONCLUSIONS HIV-infected patients with MetS present a strong inflammatory microbiota profile; therefore, future strategies to balance intestinal dysbiosis should be implemented. SIGNIFICANCE AND IMPACT OF STUDY Dysbiosis in MetS HIV-infected patients is a promising therapeutic target.
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Affiliation(s)
- Fernando Amador-Lara
- Unidad de VIH, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México.,Instituto de Investigación en Inmunodeficiencias y VIH (InIVIH), Departamento de Clínicas Médicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México
| | - Jaime F Andrade-Villanueva
- Unidad de VIH, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México.,Instituto de Investigación en Inmunodeficiencias y VIH (InIVIH), Departamento de Clínicas Médicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México
| | - Natali Vega-Magaña
- Laboratorio de Diagnóstico de Enfermedades Emergentes y Reemergentes (LaDEER), Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada # 950, Colonia Independencia, CP 44340, Guadalajara, Jalisco, México.,Instituto de Investigación en Ciencias Biomédicas (IICB), Departamento de Clínicas Médicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada # 950, Colonia Independencia, CP 44340, Guadalajara, Jalisco, México
| | - Marcela Peña-Rodríguez
- Instituto de Investigación en Enfermedades Crónico-Degenerativas (IECD), Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada # 950, Colonia Independencia, CP 44340, Guadalajara, Jalisco, México
| | - Monserrat Alvarez-Zavala
- Unidad de VIH, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México.,Instituto de Investigación en Inmunodeficiencias y VIH (InIVIH), Departamento de Clínicas Médicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México
| | - Karina Sanchez-Reyes
- Unidad de VIH, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México.,Instituto de Investigación en Inmunodeficiencias y VIH (InIVIH), Departamento de Clínicas Médicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México
| | - Marcela Toscano-Piña
- Unidad de VIH, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México
| | - Alejandro A Peregrina-Lucano
- Departamento de Farmacobiología; Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, C.P. 44430, Guadalajara, Jalisco, México
| | - Susana Del Toro-Arreola
- Instituto de Investigación en Enfermedades Crónico-Degenerativas (IECD), Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada # 950, Colonia Independencia, CP 44340, Guadalajara, Jalisco, México
| | - Luz A González-Hernández
- Unidad de VIH, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México.,Instituto de Investigación en Inmunodeficiencias y VIH (InIVIH), Departamento de Clínicas Médicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Hospital #278, colonia el Retiro, CP 44280, Guadalajara, Jalisco, México
| | - Miriam R Bueno-Topete
- Instituto de Investigación en Enfermedades Crónico-Degenerativas (IECD), Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada # 950, Colonia Independencia, CP 44340, Guadalajara, Jalisco, México
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Jiang Q, Zhang W. Gradual effects of gradient concentrations of polystyrene nanoplastics on metabolic processes of the razor clams. Environ Pollut 2021; 287:117631. [PMID: 34182384 DOI: 10.1016/j.envpol.2021.117631] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/17/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
With the widespread occurrence and accumulation of plastic waste in the world, plastic pollution has become a serious threat to ecosystem and ecological security, especially to estuarine and coastal areas. Understanding the impacts of changing nanoplastics concentrations on aquatic organisms living in these areas is essential for revealing the ecological effects caused by plastic pollution. In the present study, we revealed the effects of exposure to gradient concentrations (0.005, 0.05, 0.5 and 50 mg/L) of 75 nm polystyrene nanoplastics (PS-NPs) for 48 h on metabolic processes in muscle tissue of a bivalve, the razor clam Sinonovacula constricta, via metabolomic and transcriptomic analysis. Our results showed that PS-NPs caused dose-dependent adverse effects on energy reserves, membrane lipid metabolism, purine metabolism and lysosomal hydrolases. Exposure to PS-NPs reduced energy reserves, especially lipids. Membrane lipid metabolism was sensitive to PS-NPs with contents of phosphocholines (PC), phosphatidylethanolamines (PE) and phosphatidylserines (PS) increasing and degradation being inhibited in all concentrations. High concentrations of PS-NPs altered the purine metabolism via increasing contents of guanosine triphosphate (GTP) and adenine, which may be needed for DNA repair, and consuming inosine and hypoxanthine. During exposure to low concentrations of PS-NPs, lysosomal hydrolases in S. constricta, especially cathepsins, were inhibited while this influence was improved transitorily in 5 mg/L of PS-NPs. These adverse effects together impacted energy metabolism in S. constricta and disturbed energy homeostasis, which was manifested by the low levels of acetyl-CoA in high concentrations of PS-NPs. Overall, our results revealed the effects of acute exposure to gradient concentrations of PS-NPs on S. constricta, especially its metabolic process, and provide perspectives for understanding the toxicity of dynamic plastic pollution to coastal organisms and ecosystem.
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Affiliation(s)
- Qichen Jiang
- Freshwater Fishers Research Institute of Jiangsu Province, 79 Chatting East Street, Nanjing, 210017, China
| | - Wenyi Zhang
- Institute of Animal Genetic Resource, Nanjing Normal University, 1 Wenyuan Street, Nanjing, 210046, China; State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China.
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De la Fuente IM. Correspondence insights into the role of genes in cell functionality. Comments on "The gene: An appraisal" by K. Baverstock. Prog Biophys Mol Biol 2021:S0079-6107(21)00115-2. [PMID: 34624359 DOI: 10.1016/j.pbiomolbio.2021.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/27/2021] [Accepted: 09/30/2021] [Indexed: 11/21/2022]
Abstract
One of the most important goals of the post-genomic era is to understand the different sources of molecular information that regulate the functional and structural architecture of cells. In this regard, Prof. K. Baverstock underscores in his recent article "The gene: An appraisal" (Baverstock, 2021) that genes are not the leading elements in cellular functionality, inheritance and evolution. As a consequence, the theory of evolution based on the Neo-Darwinian synthesis, is inadequate for today's scientific evidence. Conversely, the author contends that life processes viewed on the basis of thermodynamics, complex system dynamics and self-organization provide a new framework for the foundations of Biology. I consider it necessary to comment on some essential aspects of this relevant work, and here I present a short overview of the main non-genetic sources of biomolecular order and complexity that underline the molecular dynamics and functionality of cells. These sources generate different processes of complexity, which encompasses from the most elementary levels of molecular activity to the emergence of systemic behaviors, and the information necessary to sustain them is not contained in the genome.
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5
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Abstract
Doxorubicin (DOX) is the most effective and extensively used treatment for many tumors. However, its clinical use is hampered by its cardiotoxicity. DOX-induced mitochondrial dysfunction, which causes reactive oxygen species (ROS) generation, cardiomyocyte death, bioenergetic failure, and decreased cardiac function, is a very important mechanism of cardiotoxicity. These cellular processes are all linked by mitochondrial sirtuins (SIRT3-SIRT4). Mitochondrial sirtuins preserve mitochondrial function by increasing mitochondrial metabolism, inhibiting ROS generation by activating the antioxidant enzyme manganese-dependent superoxide dismutase (MnSOD), decreasing apoptosis by activating the forkhead homeobox type O (FOXO) and P53 pathways, and increasing autophagy through AMP-activated protein kinase (AMPK)/mTOR signaling. Thus, sirtuins function at the control point of many mechanisms involved in DOX-induced cardiotoxicity. In this review, we focus on the role of mitochondrial sirtuins in mitochondrial biology and DOX-induced cardiotoxicity. A further aim is to highlight other mitochondrial processes, such as autophagy (mitophagy) and mitochondrial quality control (MQC), for which the effect of mitochondrial sirtuins on cardiotoxicity is unknown.
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Abstract
The beginning of the twenty-first century offered new advances in cancer research, including new knowledge about the tumor microenvironment (TME). Because TMEs provide the niches in which cancer cells, fibroblasts, lymphocytes, and immune cells reside, they play a crucial role in cancer cell development, differentiation, survival, and proliferation. Throughout cancer progression, the TME constantly evolves, causing cancer cells to adapt to the new conditions. The heterogeneity of cancer, evidenced by diverse proliferation rates, cellular structures, metabolisms, and gene expressions, presents challenges for cancer treatment despite the advances in research. This chapter discusses how different TMEs lead to specific metabolic adaptations that drive cancer progression.
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Affiliation(s)
| | - Cissy Zhang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biology, Johns Hopkins University Krieger School of Arts and Sciences, Baltimore, MD, USA
| | - Anne Le
- Department of Pathology and Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, MD, USA.
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7
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Henry V, Saïs F, Inizan O, Marchadier E, Dibie J, Goelzer A, Fromion V. BiPOm: a rule-based ontology to represent and infer molecule knowledge from a biological process-centered viewpoint. BMC Bioinformatics 2020; 21:327. [PMID: 32703160 PMCID: PMC7376860 DOI: 10.1186/s12859-020-03637-9] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 06/30/2020] [Indexed: 12/16/2022] Open
Abstract
Background Managing and organizing biological knowledge remains a major challenge, due to the complexity of living systems. Recently, systemic representations have been promising in tackling such a challenge at the whole-cell scale. In such representations, the cell is considered as a system composed of interlocked subsystems. The need is now to define a relevant formalization of the systemic description of cellular processes. Results We introduce BiPOm (Biological interlocked Process Ontology for metabolism) an ontology to represent metabolic processes as interlocked subsystems using a limited number of classes and properties. We explicitly formalized the relations between the enzyme, its activity, the substrates and the products of the reaction, as well as the active state of all involved molecules. We further showed that the information of molecules such as molecular types or molecular properties can be deduced by automatic reasoning using logical rules. The information necessary to populate BiPOm can be extracted from existing databases or existing bio-ontologies. Conclusion BiPOm provides a formal rule-based knowledge representation to relate all cellular components together by considering the cellular system as a whole. It relies on a paradigm shift where the anchorage of knowledge is rerouted from the molecule to the biological process. Availability BiPOm can be downloaded at https://github.com/SysBioInra/SysOnto
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Affiliation(s)
- Vincent Henry
- Université Paris-Saclay, INRAE, MaIAGE, Jouy-en-Josas, France
| | - Fatiha Saïs
- LRI, UMR 8623, CNRS, Université Paris-Sud, Université Paris Saclay, Orsay, France
| | - Olivier Inizan
- Université Paris-Saclay, INRAE, MaIAGE, Jouy-en-Josas, France
| | - Elodie Marchadier
- Université Paris-Saclay, INRAE, CNRS, AgroParisTech, GQE-Le Moulon, Gif-sur-Yvette, 91190, France
| | - Juliette Dibie
- UMR MIA-Paris, AgroParisTech, INRAE, Université Paris Saclay, Paris, France
| | - Anne Goelzer
- Université Paris-Saclay, INRAE, MaIAGE, Jouy-en-Josas, France.
| | - Vincent Fromion
- Université Paris-Saclay, INRAE, MaIAGE, Jouy-en-Josas, France
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Abstract
The small teleost fish Astyanax mexicanus has emerged as an outstanding model for studying many biological topics in the context of evolution. A major attribute is conspecific surface dwelling (surface fish) and blind cave dwelling (cavefish) morphs that can be raised in the laboratory and spawn large numbers of transparent and synchronously developing embryos. More than 30 cavefish populations have been discovered, mostly in northeastern Mexico, and some are thought to have evolved independently from surface fish ancestors, providing excellent models of parallel and convergent evolution. Cavefish have evolved eye and pigmentation regression, as well as modifications in brain morphology, behaviors, heart regenerative capacity, metabolic processes, and craniofacial organization. Thus, the Astyanax model provides researchers with natural "mutants" to study life in the challenging cave environment. The application of powerful genetic approaches based on hybridization between the two morphs and between the different cavefish populations are key advantages for deciphering the developmental and genetic mechanisms regulating trait evolution. QTL analysis has revealed the genetic architectures of gained and lost traits. In addition, some cavefish traits resemble human diseases, offering novel models for biomedical research. Astyanax research is supported by genome assemblies, transcriptomes, tissue and organ transplantation, gene manipulation and editing, and stable transgenesis, and benefits from a welcoming and interactive research community that conducts integrated community projects and sponsors the International Astyanax Meeting (AIM).
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Affiliation(s)
- William R Jeffery
- Department of Biology, University of Maryland, College Park, MD 20742 USA
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Paton KR, Cake MH, Potter IC. Lipid and protein catabolism contribute to aerobic metabolic responses to exhaustive exercise during the protracted spawning run of the lamprey Geotria australis. J Comp Physiol B 2019; 190:35-47. [PMID: 31858228 DOI: 10.1007/s00360-019-01251-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 05/30/2019] [Revised: 11/15/2019] [Accepted: 12/08/2019] [Indexed: 10/25/2022]
Abstract
This paper has integrated new and past data to elucidate how lipid, protein and glycogen metabolism contribute to generating the ATP required by the southern hemisphere lamprey Geotria australis during its ~ 13-15 months, non-trophic upstream spawning migration. Energy is required for maintenance, swimming, the development of gonads and secondary sexual characters and spawning and post-spawning activities. Plasma and muscle metabolites were measured in animals subjected to an exercise-recovery regime at the commencement and completion of the spawning run. The present study demonstrated the following. At all stages of the migration, plasma glucose and glycerol concentrations increased during exercise and then declined, whereas plasma FFAs exhibited the reverse trend. During exercise and recovery, alanine declined and ammonia increased in the plasma of early migrants, while the opposite occurred in mature males. Following exercise, muscle alanine rose and then declined in early migrants, but declined and then rose in mature males. The composite data emphasise that, while the same catabolic processes are employed by both sexes early in the migration, when animals are immature, they differ markedly between the sexes as they mature and then spawn, reflecting their different demands. Energy is supplied predominantly via anaerobic metabolism in early migrants, but by anaerobic and aerobic metabolism in prespawning females and by aerobic metabolism in mature males and spent females. Although proteolysis is limited early in the migration, it is employed extensively during maturation and particularly by females, which undergo a substantial reduction in length in the lead-up to spawning.
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Affiliation(s)
- Karen R Paton
- Centre for Sustainable Aquatic Resources, Murdoch University, Murdoch, WA, 6150, Australia
| | - Max H Cake
- Centre for Sustainable Aquatic Resources, Murdoch University, Murdoch, WA, 6150, Australia.
| | - Ian C Potter
- Centre for Sustainable Aquatic Resources, Murdoch University, Murdoch, WA, 6150, Australia
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Bailey C, von Siebenthal EW, Rehberger K, Segner H. Transcriptomic analysis of the impacts of ethinylestradiol (EE2) and its consequences for proliferative kidney disease outcome in rainbow trout (Oncorhynchus mykiss). Comp Biochem Physiol C Toxicol Pharmacol 2019; 222:31-48. [PMID: 31004835 DOI: 10.1016/j.cbpc.2019.04.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/19/2019] [Accepted: 04/13/2019] [Indexed: 12/11/2022]
Abstract
Freshwater fish are threatened by the cumulative impact of multiple stressors. The purpose of this study was to unravel the molecular and organism level reactions of rainbow trout, Oncorhynchus mykiss, to the combined impact of two such stressors that occur in the natural habitat of salmonids. Fish were infected with either the myxozoan parasite, Tetracapsuloides bryosalmonae, which causes proliferative kidney disease (PKD), or exposed to ethinylestradiol (EE2) an estrogenic endocrine disrupting compound, or to a combination of both (PKD × EE2). PKD is a slow progressive chronic disease here we focused on a later time point (130-day post-infection (d.p.i.)) when parasite intensity in the fish kidney has already started to decrease. At 130 d.p.i., RNA-seq technology was applied to the posterior kidney, the main target organ for parasite development. This resulted with 280 (PKD), 14 (EE2) and 444 (PKD × EE2) differentially expressed genes (DEGs) observed in the experimental groups. In fish exposed to the combination of stressors (PKD × EE2), a number of pathways were regulated that were neither observed in the single stressor groups. Parasite infection, alone and in combination with EE2, only resulted in a low intensity immune response that negatively correlated with an upregulation of genes involved in a variety of metabolic and inflammation resolution processes. This could indicate a trade-off whereby the host increases investment in recovery/resolution processes over immune responses at a later stage of disease. When PKD infection took place under simultaneous exposure to EE2 (PKD × EE2), parasite intensity decreased and pathological alterations in the posterior kidney were reduced in comparison to the PKD only condition. These findings suggest that EE2 modulated these response profiles in PKD infected fish, attenuating the disease impact on the fish.
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Affiliation(s)
- Christyn Bailey
- University of Bern, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 122, CH-3012 Bern, Switzerland; Fish Immunology and Pathology Laboratory, Animal Health Research Center (CISA-INIA), Madrid, Spain.
| | - Elena Wernicke von Siebenthal
- University of Bern, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 122, CH-3012 Bern, Switzerland
| | - Kristina Rehberger
- University of Bern, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 122, CH-3012 Bern, Switzerland
| | - Helmut Segner
- University of Bern, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 122, CH-3012 Bern, Switzerland
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Rusch HL, Robinson J, Yun S, Osier ND, Martin C, Brewin CR, Gill JM. Gene expression differences in PTSD are uniquely related to the intrusion symptom cluster: A transcriptome-wide analysis in military service members. Brain Behav Immun 2019; 80:904-908. [PMID: 31039430 PMCID: PMC6752960 DOI: 10.1016/j.bbi.2019.04.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 04/18/2019] [Accepted: 04/26/2019] [Indexed: 11/19/2022] Open
Abstract
Posttraumatic stress disorder (PTSD) is associated with wide-spread immune dysregulation; however, little is known about the gene expression differences attributed to each PTSD symptom cluster. This is an important consideration when identifying diagnostic and treatment response markers in highly comorbid populations with mental and physical health conditions that share symptoms. To this aim, we utilized a transcriptome-wide analysis of differential gene expression in peripheral blood by comparing military service members: (1) with vs. without PTSD, (2) with high vs. low PTSD cluster symptom severity, and (3) with improved vs. not improved PTSD symptoms following 4-8 weeks of evidenced-based sleep treatment. Data were analyzed at a ±2.0-fold change magnitude with subsequent gene ontology-based pathway analysis. In participants with PTSD (n = 39), 89 differentially expressed genes were identified, and 94% were upregulated. In participants with high intrusion symptoms (n = 22), 1040 differentially expressed genes were identified, and 98% were upregulated. No differentially expressed genes were identified for the remaining two PTSD symptom clusters. Ten genes (C5orf24, RBAK, CREBZF, CD69, PMAIP1, AGL, ZNF644, ANKRD13C, ESCO1, and ZCCHC10) were upregulated in participants with PTSD and high intrusion symptoms at baseline and downregulated in participants with improved PTSD symptoms following treatment. Pathway analysis identified upregulated immune response systems and metabolic networks with a NF-kB hub, which were downregulated with symptom reduction. Molecular biomarkers implicated in intrusion symptoms and PTSD symptom improvement may inform the development of therapeutic targets for precise treatment of PTSD.
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Affiliation(s)
- Heather L Rusch
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD 20892, United States.
| | - Jeffrey Robinson
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD 20892, United States
| | - Sijung Yun
- Yotta Biomed, LLC, Bethesda, MD 20817, United States
| | - Nicole D Osier
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD 20892, United States
| | - Christiana Martin
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD 20892, United States
| | - Chris R Brewin
- University College London, London WC1E 6BT, United Kingdom
| | - Jessica M Gill
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD 20892, United States
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Domínguez-Amorocho O, Takiishi T, da Cunha FF, Camara NOS. Immunometabolism: A target for the comprehension of immune response toward transplantation. World J Transplant 2019; 9:27-34. [PMID: 31363459 PMCID: PMC6656658 DOI: 10.5500/wjt.v9.i2.27] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/11/2019] [Accepted: 01/28/2019] [Indexed: 02/05/2023] Open
Abstract
Organ transplantation is a life-saving procedure, however predicting graft survival is still challenging. Understanding immune-cell pathobiology is critical to the development of effective therapies to prevent rejection. Over the recent years it has become progressively evident that the complex nature of immune cell behavioral dynamics is strongly dependent on cellular metabolism, which in turn, relies on competition for nutrients, oxygen and metabolites with other immune cells and microbiota. Furthermore, the influence of the inflammatory state can lead to substantial changes in conditions within the tissue micro-environment. Considering the context of immunity, alterations in metabolic pathways (glycolysis, the tricarboxylic acid cycle, the pentose phosphate pathway, the fatty acid oxidation and synthesis, and the amino acid metabolic pathways) will influence the production of different sets of cytokines and affect transplantation outcome. It is now known that naïve, resting and effector cells acquire different metabolic profiles and studies have shown that specifically targeting some of these metabolic routes can prevent differentiation of effector T cells in favor of Tregs. Ultimately, to develop effective therapies that will prevent graft loss and understanding how cell metabolism impacts the fate and function of immune cells is now a critical point of discussion. The distinct metabolic features and requirements observed in effector and suppressive cell subsets offer promising opportunities for selective regulation of the immune responses in transplantation and will be discussed in this review.
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Affiliation(s)
- Omar Domínguez-Amorocho
- Department of Immunology, Biomedical Sciences Institute, University of São Paulo, São Paulo 05508-900, Brazil
| | - Tatiana Takiishi
- Department of Immunology, Biomedical Sciences Institute, University of São Paulo, São Paulo 05508-900, Brazil
| | - Flavia Franco da Cunha
- Department of Immunology, Biomedical Sciences Institute, University of São Paulo, São Paulo 05508-900, Brazil
| | - Niels Olsen Saraiva Camara
- Department of Immunology, Biomedical Sciences Institute, University of São Paulo, São Paulo 05508-900, Brazil
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Olsson K, Cheng AJ, Alam S, Al-Ameri M, Rullman E, Westerblad H, Lanner JT, Bruton JD, Gustafsson T. Intracellular Ca(2+)-handling differs markedly between intact human muscle fibers and myotubes. Skelet Muscle 2015; 5:26. [PMID: 26301072 PMCID: PMC4545874 DOI: 10.1186/s13395-015-0050-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 05/27/2015] [Accepted: 07/21/2015] [Indexed: 12/14/2022] Open
Abstract
Background In skeletal muscle, intracellular Ca2+ is an important regulator of contraction as well as gene expression and metabolic processes. Because of the difficulties to obtain intact human muscle fibers, human myotubes have been extensively employed for studies of Ca2+-dependent processes in human adult muscle. Despite this, it is unknown whether the Ca2+-handling properties of myotubes adequately represent those of adult muscle fibers. Methods To enable a comparison of the Ca2+-handling properties of human muscle fibers and myotubes, we developed a model of dissected intact single muscle fibers obtained from human intercostal muscle biopsies. The intracellular Ca2+-handling of human muscle fibers was compared with that of myotubes generated by the differentiation of primary human myoblasts obtained from vastus lateralis muscle biopsies. Results The intact single muscle fibers all demonstrated strictly regulated cytosolic free [Ca2+] ([Ca2+]i) transients and force production upon electrical stimulation. In contrast, despite a more mature Ca2+-handling in myotubes than in myoblasts, myotubes lacked fundamental aspects of adult Ca2+-handling and did not contract. These functional differences were explained by discrepancies in the quantity and localization of Ca2+-handling proteins, as well as ultrastructural differences between muscle fibers and myotubes. Conclusions Intact single muscle fibers that display strictly regulated [Ca2+]i transients and force production upon electrical stimulation can be obtained from human intercostal muscle biopsies. In contrast, human myotubes lack important aspects of adult Ca2+-handling and are thus an inappropriate model for human adult muscle when studying Ca2+-dependent processes, such as gene expression and metabolic processes. Electronic supplementary material The online version of this article (doi:10.1186/s13395-015-0050-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Karl Olsson
- Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, 141 86 Sweden ; Department of Physiology and Pharmacology, Karolinska Institutet, von Eulers väg 8, Stockholm, 171 77 Sweden
| | - Arthur J Cheng
- Department of Physiology and Pharmacology, Karolinska Institutet, von Eulers väg 8, Stockholm, 171 77 Sweden
| | - Seher Alam
- Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, 141 86 Sweden
| | - Mamdoh Al-Ameri
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, 171 76 Sweden
| | - Eric Rullman
- Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, 141 86 Sweden
| | - Håkan Westerblad
- Department of Physiology and Pharmacology, Karolinska Institutet, von Eulers väg 8, Stockholm, 171 77 Sweden
| | - Johanna T Lanner
- Department of Physiology and Pharmacology, Karolinska Institutet, von Eulers väg 8, Stockholm, 171 77 Sweden
| | - Joseph D Bruton
- Department of Physiology and Pharmacology, Karolinska Institutet, von Eulers väg 8, Stockholm, 171 77 Sweden
| | - Thomas Gustafsson
- Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, 141 86 Sweden
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