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Chen HJC, Spiers JG, Lerskiatiphanich T, Parker SE, Lavidis NA, Fung JN, Woodruff TM, Lee JD. Complement C5a Receptor Signaling Alters Stress Responsiveness and Modulates Microglia Following Chronic Stress Exposure. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2024; 4:100306. [PMID: 38628385 PMCID: PMC11019103 DOI: 10.1016/j.bpsgos.2024.100306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 04/19/2024] Open
Abstract
Background Accumulating evidence underscores the pivotal role of heightened inflammation in the pathophysiology of stress-related diseases, but the underlying mechanisms remain elusive. The complement system, a key effector of the innate immune system, produces the C5-cleaved activation product C5a upon activation, initiating inflammatory responses through the canonical C5a receptor 1 (C5aR1). While C5aR1 is expressed in stress-responsive brain regions, its role in stress responsiveness remains unknown. Methods To investigate C5a-C5aR1 signaling in stress responses, mice underwent acute and chronic stress paradigms. Circulating C5a levels and messenger RNA expression of C5aR1 in the hippocampus and adrenal gland were measured. C5aR1-deficient mice were used to elucidate the effects of disrupted C5a-C5aR1 signaling across behavioral, hormonal, metabolic, and inflammation parameters. Results Chronic restraint stress elevated circulating C5a levels while reducing C5aR1 messenger RNA expression in the hippocampus and adrenal gland. Notably, the absence of C5aR1 signaling enhanced adrenal sensitivity to adrenocorticotropic hormone, concurrently reducing pituitary adrenocorticotropic hormone production and enhancing the response to acute stress. C5aR1-deficient mice exhibited attenuated reductions in locomotor activity and body weight under chronic stress. Additionally, these mice displayed increased glucocorticoid receptor sensitivity and disrupted glucose and insulin homeostasis. Chronic stress induced an increase in C5aR1-expressing microglia in the hippocampus, a response mitigated in C5aR1-deficient mice. Conclusions C5a-C5aR1 signaling emerges as a key metabolic regulator during stress, suggesting that complement activation and dysfunctional C5aR1 signaling may contribute to neuroinflammatory phenotypes in stress-related disorders. The results advocate for further exploration of complement C5aR1 as a potential therapeutic target for stress-related conditions.
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Affiliation(s)
- Hsiao-Jou Cortina Chen
- School of Biomedical Sciences, the University of Queensland, St. Lucia, Brisbane, Queensland, Australia
- Metabolic Research Laboratories, Wellcome Trust MRC Institute of Metabolic Science, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Jereme G. Spiers
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, Australia
- Clear Vision Research, Eccles Institute of Neuroscience, John Curtin School of Medical Research, College of Health and Medicine, the Australian National University, Acton, Australian Capital Territory, Australia
- School of Medicine and Psychology, College of Health and Medicine, the Australian National University, Australian Capital Territory, Australia
| | - Titaya Lerskiatiphanich
- School of Biomedical Sciences, the University of Queensland, St. Lucia, Brisbane, Queensland, Australia
| | - Sandra E. Parker
- School of Biomedical Sciences, the University of Queensland, St. Lucia, Brisbane, Queensland, Australia
| | - Nickolas A. Lavidis
- School of Biomedical Sciences, the University of Queensland, St. Lucia, Brisbane, Queensland, Australia
| | - Jenny N. Fung
- School of Biomedical Sciences, the University of Queensland, St. Lucia, Brisbane, Queensland, Australia
| | - Trent M. Woodruff
- School of Biomedical Sciences, the University of Queensland, St. Lucia, Brisbane, Queensland, Australia
- Queensland Brain Institute, the University of Queensland, St Lucia, Brisbane, Queensland, Australia
| | - John D. Lee
- School of Biomedical Sciences, the University of Queensland, St. Lucia, Brisbane, Queensland, Australia
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2
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Stress resilience is established during development and is regulated by complement factors. Cell Rep 2023; 42:111973. [PMID: 36640352 DOI: 10.1016/j.celrep.2022.111973] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 11/21/2022] [Accepted: 12/23/2022] [Indexed: 01/13/2023] Open
Abstract
Individuals in a population respond differently to stressful situations. While resilient individuals recover efficiently, others are susceptible to the same stressors. However, it remains challenging to determine if resilience is established as a trait during development or acquired later in life. Using a behavioral paradigm in zebrafish larvae, we show that resilience is a stable and heritable trait, which is determined and exhibited early in life. Resilient larvae show unique stress-induced transcriptional response, and larvae with mutations in resilience-associated genes, such as neuropeptide Y and miR218, are less resilient. Transcriptome analysis shows that resilient larvae downregulate multiple factors of the innate immune complement cascade in response to stress. Perturbation of critical complement factors leads to an increase in resilience. We conclude that resilience is established as a stable trait early during development and that neuropeptides and the complement pathway play positive and negative roles in determining resilience, respectively.
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3
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Friend SF, Nachnani R, Powell SB, Risbrough VB. C-Reactive Protein: Marker of risk for post-traumatic stress disorder and its potential for a mechanistic role in trauma response and recovery. Eur J Neurosci 2022; 55:2297-2310. [PMID: 33131159 PMCID: PMC8087722 DOI: 10.1111/ejn.15031] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/17/2020] [Accepted: 10/06/2020] [Indexed: 01/08/2023]
Abstract
Increasing evidence indicates that inflammation plays a role in PTSD and stress disorder pathophysiology. PTSD is consistently associated with higher circulating inflammatory protein levels. Rodent models demonstrate that inflammation promotes enduring avoidance and arousal behaviors after severe stressors (e.g., predator exposure and social defeat), suggesting that inflammation may play a mechanistic role in trauma disorders. C-reactive protein (CRP) is an innate acute phase reactant produced by the liver after acute infection and chronic disease. A growing number of investigations report associations with PTSD diagnosis and elevated peripheral CRP, CRP gene mutations, and CRP gene expression changes in immune signaling pathways. CRP is reasonably established as a potential marker of PTSD and trauma exposure, but if and how it may play a mechanistic role is unclear. In this review, we discuss the current understanding of immune mechanisms in PTSD with a particular focus on the innate immune signaling factor, CRP. We found that although there is consistent evidence of an association of CRP with PTSD symptoms and risk, there is a paucity of data on how CRP might contribute to CNS inflammation in PTSD, and consequently, PTSD symptoms. We discuss potential mechanisms through which CRP could modulate enduring peripheral and CNS stress responses, along with future areas of investigation probing the role of CRP and other innate immune signaling factors in modulating trauma responses. Overall, we found that CRP likely contributes to central inflammation, but how it does so is an area for further study.
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Affiliation(s)
- Samantha F. Friend
- Veterans Affairs Center of Excellence for Stress and Mental HealthSan DiegoCAUSA,Department of PsychiatryUniversity of California San DiegoSan DiegoCAUSA
| | - Rahul Nachnani
- Department of PharmacologyPenn State College of MedicineHersheyPAUSA
| | - Susan B. Powell
- Department of PsychiatryUniversity of California San DiegoSan DiegoCAUSA,Research ServiceVA San Diego Healthcare SystemSan DiegoCAUSA
| | - Victoria B. Risbrough
- Veterans Affairs Center of Excellence for Stress and Mental HealthSan DiegoCAUSA,Department of PsychiatryUniversity of California San DiegoSan DiegoCAUSA
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4
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McKetney J, Jenkins CC, Minogue C, Mach PM, Hussey EK, Glaros TG, Coon J, Dhummakupt ES. Proteomic and metabolomic profiling of acute and chronic stress events associated with military exercises. Mol Omics 2021; 18:279-295. [PMID: 34860218 DOI: 10.1039/d1mo00271f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By characterizing physiological changes that occur in warfighters during simulated combat, we can start to unravel the key biomolecular components that are linked to physical and cognitive performance. Viable field-based sensors for the warfighter must be rapid and noninvasive. In an effort to facilitate this, we applied a multiomics pipeline to characterize the stress response in the saliva of warfighters to correlate biomolecular changes with overall performance and health. In this study, two different stress models were observed - one of chronic stress and one of acute stress. In both models, significant perturbations in the immune, metabolic, and protein manufacturing/processing systems were observed. However, when differentiating between stress models, specific metabolites associated with the "fight or flight" response and protein folding were seen to be discriminate of the acute stress model.
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Affiliation(s)
- Justin McKetney
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, 53706, USA. .,National Center for Quantitative Biology of Complex Systems, Madison, WI 53706, USA
| | - Conor C Jenkins
- DEVCOM Chemical Biological Center, Aberdeen Proving Grounds, MD 21010, USA.
| | - Catie Minogue
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, 53706, USA. .,National Center for Quantitative Biology of Complex Systems, Madison, WI 53706, USA
| | - Phillip M Mach
- DEVCOM Chemical Biological Center, Aberdeen Proving Grounds, MD 21010, USA.
| | - Erika K Hussey
- DEVCOM Soldier Center, Natick, MA 01760, USA.,Defense Innovation Unit, Mountain View, CA 94043, USA
| | - Trevor G Glaros
- DEVCOM Chemical Biological Center, Aberdeen Proving Grounds, MD 21010, USA. .,Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Joshua Coon
- Department of Biomolecular Chemistry, University of Wisconsin, Madison, WI, 53706, USA. .,National Center for Quantitative Biology of Complex Systems, Madison, WI 53706, USA.,Morgridge Institute for Research, Madison, WI 53515, USA.,Department of Chemistry, University of Wisconsin, Madison, WI 53706, USA
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5
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Katrinli S, Smith AK. Immune system regulation and role of the human leukocyte antigen in posttraumatic stress disorder. Neurobiol Stress 2021; 15:100366. [PMID: 34355049 PMCID: PMC8322450 DOI: 10.1016/j.ynstr.2021.100366] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 05/28/2021] [Accepted: 07/10/2021] [Indexed: 11/01/2022] Open
Abstract
Posttraumatic stress disorder (PTSD) is a debilitating condition that adversely affect mental and physical health. Recent studies have increasingly explored the role of the immune system in risk for PTSD and its related symptoms. Dysregulation of the immune system may lead to central nervous system tissue damage and impair learning and memory processes. Individuals with PTSD often have comorbid inflammatory or auto-immune disorders. Evidence shows associations between PTSD and multiple genes that are involved in immune-related or inflammatory pathways. In this review, we will summarize the evidence of immune dysregulation in PTSD, outlining the contributions of distinct cell types, genes, and biological pathways. We use the Human Leukocyte Antigen (HLA) locus to illustrate the contribution of genetic variation to function in different tissues that contribute to PTSD etiology, severity, and comorbidities.
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Affiliation(s)
- Seyma Katrinli
- Emory University, Department of Gynecology and Obstetrics, Atlanta, GA, USA
| | - Alicia K Smith
- Emory University, Department of Gynecology and Obstetrics, Atlanta, GA, USA.,Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
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Tylan C, Horvat-Gordon M, Bartell PA, Langkilde T. Ecoimmune reallocation in a native lizard in response to the presence of invasive, venomous fire ants in their shared environment. JOURNAL OF EXPERIMENTAL ZOOLOGY PART 2020; 333:792-804. [PMID: 33038069 DOI: 10.1002/jez.2418] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 09/16/2020] [Accepted: 09/19/2020] [Indexed: 01/10/2023]
Abstract
Exposure to stressors over prolonged periods can have fitness-relevant consequences, including suppression of immune function. We tested for effects of presence of an invasive species threat on a broad panel of immune functions of a coexisting lizard. Eastern fence lizards (Sceloporus undulatus) have been exposed to invasive fire ants (Solenopsis invicta) for over 80 years. Fire ants sting and envenomate lizards, causing physiological stress, but we do not have a comprehensive understanding of the broad immune consequences of lizard exposure to fire ant presence. We conducted a suite of immune measures on fence lizards caught from areas with long histories of fire ant invasion and lizards from areas not yet invaded by fire ants. The effect of fire ant presence on immunity varied depending on the immune component measured: within fire ant invaded areas, some portions of immunity were suppressed (lymphocytic cell-mediated immunity, complement), some were unaffected (phagocytic respiratory burst, natural antibodies), and some were enhanced (anti-fire ant immunoglobulin M, basophils) compared to within uninvaded areas. Rather than fire ants being broadly immunosuppressing, as generally assumed, the immune response appears to be tailored to this specific stressor: the immune measures that were enhanced are important to the lizards' ability to handle envenomation, whereas those that were unaffected or suppressed are less critical to surviving fire ant encounters. Several immune measures were suppressed in reproductive females when actively producing follicles, which may make them more susceptible to immunosuppressive costs of stressors such as interactions with fire ants.
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Affiliation(s)
- Catherine Tylan
- Department of Biology, The Pennsylvania State University, Mueller Laboratory, University Park, Pennsylvania, USA
| | - Maria Horvat-Gordon
- Department of Animal Science, The Pennsylvania State University, Forest Resource Laboratory, University Park, Pennsylvania, USA
| | - Paul A Bartell
- Department of Animal Science, The Pennsylvania State University, Forest Resource Laboratory, University Park, Pennsylvania, USA
| | - Tracy Langkilde
- Department of Biology, The Pennsylvania State University, Mueller Laboratory, University Park, Pennsylvania, USA
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7
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Meissner K, Lutter D, von Toerne C, Haile A, Woods SC, Hoffmann V, Ohmayer U, Hauck SM, Tschoep MH. Molecular classification of the placebo effect in nausea. PLoS One 2020; 15:e0238533. [PMID: 32966280 PMCID: PMC7511022 DOI: 10.1371/journal.pone.0238533] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022] Open
Abstract
In this proof-of-concept study, we tested whether placebo effects can be monitored and predicted by plasma proteins. In a randomized controlled design, 90 participants were exposed to a nauseating stimulus on two separate days and were randomly allocated to placebo treatment or no treatment on the second day. Significant placebo effects on nausea, motion sickness, and (in females) gastric activity could be verified. Using label-free tandem mass spectrometry, 74 differentially regulated proteins were identified as correlates of the placebo effect. Gene ontology (GO) enrichment analyses identified acute-phase proteins and microinflammatory proteins to be involved, and the identified GO signatures predicted day-adjusted scores of nausea indices in the placebo group. We also performed GO enrichment analyses of specific plasma proteins predictable by the experimental factors or their interactions and identified 'grooming behavior' as a prominent hit. Finally, Receiver Operator Characteristics (ROC) allowed to identify plasma proteins differentiating placebo responders from non-responders, comprising immunoglobulins and proteins involved in oxidation reduction processes and complement activation. Plasma proteomics is a promising tool to identify molecular correlates and predictors of the placebo effect in humans.
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Affiliation(s)
- Karin Meissner
- Institute of Medical Psychology, Faculty of Medicine, LMU Munich, Munich, Germany
- Division of Health Promotion, Coburg University of Applied Sciences, Coburg, Germany
| | - Dominik Lutter
- Institute of Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Christine von Toerne
- Research Unit Protein Science, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Anja Haile
- Institute of Medical Psychology, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Stephen C. Woods
- Department of Psychiatry and Behavioral Neuroscience, Metabolic Diseases Institute, University of Cincinnati, Cincinnati, Ohio, United States of America
| | - Verena Hoffmann
- Institute of Medical Psychology, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Uli Ohmayer
- Research Unit Protein Science, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Stefanie M. Hauck
- Research Unit Protein Science, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Matthias H. Tschoep
- Institute of Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Division of Metabolic Diseases, Department of Medicine, Technische Universität München, Munich, Germany
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8
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Zhang F, Pu J, Gu Z, Mao H. DIA proteomics reveals hypotensive and immune-enhancing constituents in buffalo whey from different altitudes. Int J Biol Macromol 2020; 164:4146-4154. [PMID: 32882282 DOI: 10.1016/j.ijbiomac.2020.08.213] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 11/29/2022]
Abstract
The selection of raw milk with high levels of functional components that have health-promoting activities is very important for the exploitation and production of functional milk, but the differences in the functional components of whey from buffalo raised at different altitudes have not been thoroughly investigated. Here, we detected the effects of altitudes on the functional components in whey from dairy buffalo farms situated at low altitude (LA), medium altitude (MA), and high altitude (HA) sites with data-independent acquisition proteomic approaches. In 33 samples, 9331 peptides corresponding to 1008 high-confidence proteins were detected. HA-whey had a lower level of angiotensinogen than that of the LA- and MA-whey, and conversely contained higher levels of immune-enhancing components than for the latter two groups. Differential proteins were involved in vascular smooth muscle contraction, complement and coagulation cascades, and the secretion, production and regulation pathways in immune components. LA-whey showed higher levels of lymphocyte antigen and selenoprotein F than that of the HA-whey. Owing to the biological functions of their most abundant components, HA- and LA-whey are suitable for the processing of functional milk for lowering blood pressure, and the production of immune milk, respectively.
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Affiliation(s)
- Fulan Zhang
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jinhui Pu
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Zhaobing Gu
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China.
| | - Huaming Mao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
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9
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RNA-Seq based transcriptome analysis during bovine viral diarrhoea virus (BVDV) infection. BMC Genomics 2019; 20:774. [PMID: 31651237 PMCID: PMC6813989 DOI: 10.1186/s12864-019-6120-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 09/20/2019] [Indexed: 02/06/2023] Open
Abstract
Background Bovine viral diarrhoea virus (BVDV) is the member of the genus Pestivirus within the Flaviviridae family and responsible for severe economic losses in the cattle industry. BVDV can employ ‘infect-and-persist’ strategy and ‘hit-and-run’ strategy to remain associated with hosts and thus contributes to BVDV circulation in cattle herds. BVDV have also evolved various strategies to evade the innate immunity of host. To further understand the mechanisms by which BVDV overcomes the host cell innate immune response and provide more clues for further understanding the BVDV-host interaction, in this descriptive study, we conducted a investigation of differentially expressed genes (DEGs) of the host during BVDV infection by RNA-Seq analysis. Results Our analysis identified 1297, 1732, 3072, and 1877 DEGs in the comparison groups mock vs. MDBK cells infected with BVDV post 2 h (MBV2h), mock vs. MBV6h, mock vs. MBV12h, and mock vs. MBV24h, respectively. The reproducibility and repeatability of the results were validated by RT-qPCR. Enrichment analyses of GO annotations and KEGG pathways revealed the host DEGs that are potentially induced by BVDV infection and may participate in BVDV-host interactions. Protein-protein interaction (PPI) network analyses identified the potential interactions among the DEGs. Our findings suggested that BVDV infection induced the upregulation of genes involved in lipid metabolism. The expression of genes that have antiviral roles, including ISG15, Mx1, OSA1Y, were found to be downregulated and are thus potentially associated with the inhibition of host innate immune system during BVDV infection. The expression levels of F3, C1R, KNG1, CLU, C3, FB, SERPINA5, SERPINE1, C1S, F2RL2, and C2, which belong to the complement and coagulation signalling cascades, were downregulated during BVDV infection, which suggested that the complement system might play a crucial role during BVDV infection. Conclusion In this descriptive study, our findings revealed the changes in the host transcriptome expression profile during BVDV infection and suggested that BVDV-infection induced altering the host’s metabolic network, the inhibition of the expression of antiviral proteins and genes within the complement system might be contributed to BVDV proliferation. The above findings provided unique insights for further studies on the mechanisms underlying BVDV-host interactions.
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10
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Smith KL, Kassem MS, Clarke DJ, Kuligowski MP, Bedoya-Pérez MA, Todd SM, Lagopoulos J, Bennett MR, Arnold JC. Microglial cell hyper-ramification and neuronal dendritic spine loss in the hippocampus and medial prefrontal cortex in a mouse model of PTSD. Brain Behav Immun 2019; 80:889-899. [PMID: 31158497 DOI: 10.1016/j.bbi.2019.05.042] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/30/2019] [Accepted: 05/31/2019] [Indexed: 12/13/2022] Open
Abstract
Few animal models exist that successfully reproduce several core associative and non-associative behaviours relevant to post-traumatic stress disorder (PTSD), such as long-lasting fear reactions, hyperarousal, and subtle attentional and cognitive dysfunction. As such, these models may lack the face validity required to adequately model pathophysiological features of PTSD such as CNS grey matter loss and neuroinflammation. Here we aimed to investigate in a mouse model of PTSD whether contextual fear conditioning associated with a relatively high intensity footshock exposure induces loss of neuronal dendritic spines in various corticolimbic brain regions, as their regression may help explain grey matter reductions in PTSD patients. Further, we aimed to observe whether these changes were accompanied by alterations in microglial cell number and morphology, and increased expression of complement factors implicated in the mediation of microglial cell-mediated engulfment of dendritic spines. Adult male C57Bl6J mice were exposed to a single electric footshock and subsequently underwent phenotyping of various PTSD-relevant behaviours in the short (day 2-4) and longer-term (day 29-31). 32 days post-exposure the brains of these animals were subjected to Golgi staining of dendritic spines, microglial cell Iba-1 immunohistochemistry and immunofluorescent staining of the complement factors C1q and C4. Shock exposure promoted a lasting contextual fear response, decreased locomotor activity, exaggerated acoustic startle responses indicative of hyperarousal, and a short-term facilitation of sensorimotor gating function. The shock triggered loss of dendritic spines on pyramidal neurons was accompanied by increased microglial cell number and complexity in the medial prefrontal cortex and dorsal hippocampus, but not in the amygdala. Shock also increased expression of C1q in the pyramidal layer of the CA1 region of the hippocampus but not in other brain regions. The present study further elaborates on the face and construct validity of a mouse model of PTSD and provides a good foundation to explore potential molecular interactions between microglia and dendritic spines.
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Affiliation(s)
- Kristie Leigh Smith
- Brain and Mind Centre, University of Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Australia
| | | | - David J Clarke
- Brain and Mind Centre, University of Sydney, Australia; Discipline of Pharmacology, University of Sydney, Australia
| | - Michael P Kuligowski
- Brain and Mind Centre, University of Sydney, Australia; Australian Microscopy & Microanalysis Research Facility, University of Sydney, Australia
| | - Miguel A Bedoya-Pérez
- Brain and Mind Centre, University of Sydney, Australia; School of Life and Environmental Sciences, University of Sydney, Australia
| | - Stephanie M Todd
- Brain and Mind Centre, University of Sydney, Australia; Discipline of Pharmacology, University of Sydney, Australia
| | | | - Maxwell R Bennett
- Brain and Mind Centre, University of Sydney, Australia; Discipline of Physiology, University of Sydney, Australia
| | - Jonathon C Arnold
- Brain and Mind Centre, University of Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Australia; Discipline of Pharmacology, University of Sydney, Australia.
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Gley K, Murani E, Haack F, Trakooljul N, Zebunke M, Puppe B, Wimmers K, Ponsuksili S. Haplotypes of coping behavior associated QTL regions reveal distinct transcript profiles in amygdala and hippocampus. Behav Brain Res 2019; 372:112038. [PMID: 31202863 DOI: 10.1016/j.bbr.2019.112038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 06/06/2019] [Accepted: 06/12/2019] [Indexed: 12/15/2022]
Abstract
Stress response and coping behavior in pigs are largely shaped by hypothalamic-pituitary-adrenal axis and sympatho-adrenomedullary system action. However, the dynamic interaction between amygdala and hippocampus crucially modulates the behavioral response towards significant emotional events. While this functional relationship is well documented, the molecular underpinnings still remain insufficiently understood. Our study used transcriptome profiling of porcine amygdala and hippocampus to identify molecular pathways that are differentially activated depending on the haplotype of a significantly coping behavior-associated region on pig chromosome 12 (SSC12). The pigs were classified into two groups based on the haplotype information of this QTL-region discovered in our previous genome-wide association study. Ten each of high- (HR) and low- (LR) reactive pigs (n = 20) were selected for differential gene expression analysis and weighted gene co-expression analysis with subsequent pathway analysis. Differentially expressed genes identified in the amygdala include SELL, CXCR7 and NTS, while TRAF3, PTGS2 and CFI were detected in the hippocampus indicating a role of neuroinflammation and immunological processes. Pathway analysis revealed IL-8 signaling, NF-κB signaling, glutamate and GABA metabolism, glucocorticoid receptor signaling and chemokine signaling in the amygdala and ephrin receptor signaling, as well as NF-κB signaling in the hippocampus. We discovered candidate genes in regions detected by genome-wide association study including ARRB2, ADRBK2, THRB, NEK7 and ACVR2B, which relate to dopaminergic and other monoaminergic neurotransmitter systems, neuroimmunomodulation, neuroinflammation and GABA-ergic neurotransmission. These findings provide insights into the molecular underpinning of divergent coping behavior and associated haplotypes in limbic forebrain system in pig.
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Affiliation(s)
- Kevin Gley
- Leibniz Institute of Farm Animal Biology (FBN), Institute for Genome Biology, Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Eduard Murani
- Leibniz Institute of Farm Animal Biology (FBN), Institute for Genome Biology, Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Fiete Haack
- Leibniz Institute of Farm Animal Biology (FBN), Institute for Genome Biology, Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Nares Trakooljul
- Leibniz Institute of Farm Animal Biology (FBN), Institute for Genome Biology, Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Manuela Zebunke
- Leibniz Institute of Farm Animal Biology (FBN), Institute of Genetics and Biometry, Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany; Leibniz Institute of Farm Animal Biology (FBN), Institute for Behavioral Physiology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Birger Puppe
- Leibniz Institute of Farm Animal Biology (FBN), Institute for Behavioral Physiology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Klaus Wimmers
- Leibniz Institute of Farm Animal Biology (FBN), Institute for Genome Biology, Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany
| | - Siriluck Ponsuksili
- Leibniz Institute of Farm Animal Biology (FBN), Institute for Genome Biology, Wilhelm-Stahl-Allee 2, D-18196 Dummerstorf, Germany.
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12
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Kong Z, Zhou C, Li B, Jiao J, Chen L, Ren A, Jie H, Tan Z. Integrative plasma proteomic and microRNA analysis of Jersey cattle in response to high-altitude hypoxia. J Dairy Sci 2019; 102:4606-4618. [PMID: 30879823 DOI: 10.3168/jds.2018-15515] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 01/02/2019] [Indexed: 12/15/2022]
Abstract
Blood has been widely collected and analyzed for diagnosing and monitoring diseases in humans and animals; a range of plasma proteins and peptide can be used as biomarkers to describe pathological or physiological status. Changes in the environment such as high-altitude hypoxia (HAH) can lead to adaptive changes in the blood system of mammals. However, the adaptation mechanism induced by HAH remains unclear. In this study, we used 12 multiparous Jersey cattle (400 ± 35 kg, average 3 yr old, dry period). We applied an iTRAQ (isobaric tags for relative and absolute quantitation) proteomics approach and microRNA (miRNA) microarray to explore differences in the plasma proteomic and miRNA profiles of Jersey cattle exposed to HAH conditions in Nyingchi, Tibet (altitude 3,000 m) and HAH-free conditions in Shenyang, China (altitude 50 m). Such quantitative proteomic strategies are suitable for accurate and comprehensive prediction of miRNA targets. In total, 264 differentially expressed proteins (127 upregulated, fold-change >1.2; 137 downregulated, fold-change <0.8) and 47 differential miRNAs (25 upregulated, fold-change >2; 22 downregulated, fold-change <0.5) were observed in the HAH-stressed group compared with the HAH-free group. Integrative analysis of proteomic and miRNA profiles demonstrated that the biological processes associated with differentially expressed proteins were immune response, complement system, and conjugation system. Integrative analysis of canonical pathways showed that most were associated with acute phase response signaling (z-score = -0.125), liver X receptor/retinoid X receptor (LXR/RXR) activation pathway (z-score = 1.134), coagulation system (z-score = -0.943), and complement system (z-score = -0.632). The current results indicated that Jersey cattle exposed to HAH could adapt to that condition through regulation of inflammatory homeostasis by inhibiting the acute phase response, coagulation system, and complement system and promoting LXR/RXR activation.
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Affiliation(s)
- Zhiwei Kong
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Chuanshe Zhou
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China; Hunan Co-Innovation Center of Safety Animal Production (CICSAP), Changsha, Hunan 410128, China.
| | - Bin Li
- Institute of Animal Husbandry and Veterinary, Tibet Autonomous Regional Academy of Agricultural Sciences, State Key Laboratory of Hulless Barley and Yak Germplasm Resources and Genetic Improvement, Lhasa, Tibet 850000, China.
| | - Jinzhen Jiao
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China; Hunan Co-Innovation Center of Safety Animal Production (CICSAP), Changsha, Hunan 410128, China
| | - Liang Chen
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China; College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Ao Ren
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China; College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Hongdong Jie
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - Zhiliang Tan
- CAS Key Laboratory for Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, China; Hunan Co-Innovation Center of Safety Animal Production (CICSAP), Changsha, Hunan 410128, China
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Speer K, Upton D, Semple S, McKune A. Systemic low-grade inflammation in post-traumatic stress disorder: a systematic review. J Inflamm Res 2018; 11:111-121. [PMID: 29606885 PMCID: PMC5868606 DOI: 10.2147/jir.s155903] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Studies examining post-traumatic stress disorder (PTSD) have either emphasized a relationship between PTSD and a systemically pro-inflammatory state or identified a link between PTSD and chronic disease. The aim of this study was to evaluate the evidence for a relationship between individuals with PTSD and systemic low-grade inflammation that has been proposed to underlie chronic disease development in this population. The authors conducted a systematic review of the literature (January 2006 to April 2017) in accordance with the PRISMA statement in the following four databases: PubMed, MEDLINE, PsycINFO, and SPORTDiscus with Full Text. The search strategy was limited to articles published in peer-reviewed journals and to human studies. Nine studies measuring systemic inflammation and discussing its role in chronic disease development were selected for inclusion in this review. The association between markers of systemic inflammation and PTSD was evaluated by the measurement of a variety of systemic inflammatory markers including acute-phase proteins, complement proteins, pro- and anti-inflammatory cytokines, natural killer cells, and white blood cells. In general, systemic inflammatory biomarkers were elevated across the studies in the PTSD groups. There is evidence that PTSD is underpinned by the presence of a systemic low-grade inflammatory state. This inflammation may be the mechanism associated with increased risk for chronic disease in the PTSD population. From this, future research should focus on interventions that help to reduce inflammation, such as exercise.
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Affiliation(s)
- Kathryn Speer
- Discipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Canberra, ACT, Australia
| | - Dominic Upton
- Faculty of Health, University of Canberra, Canberra, ACT, Australia
| | - Stuart Semple
- Discipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Canberra, ACT, Australia.,Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia
| | - Andrew McKune
- Discipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Canberra, ACT, Australia.,Faculty of Health, University of Canberra, Canberra, ACT, Australia.,Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia.,Discipline of Biokinetics, Exercise and Leisure Sciences, School of Health Sciences, University of KwaZulu Natal, Durban, South Africa
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Hovhannisyan L, Stepanyan A, Arakelyan A. Genetic variability of interleukin-1 beta as prospective factor from developing post-traumatic stress disorder. Immunogenetics 2017; 69:703-708. [PMID: 28681202 DOI: 10.1007/s00251-017-1016-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 06/14/2017] [Indexed: 02/03/2023]
Abstract
Individual susceptibility to post-traumatic stress disorder (PTSD) is conditioned by genetic factors, and association between this disorder and polymorphisms of several genes have been shown. The aim of this study was to explore a potential association between single nucleotide polymorphisms (SNP) of the IL-1β gene (IL1B) and PTSD. In genomic DNA samples of PTSD-affected and healthy subjects, the rs16944, rs1143634, rs2853550, rs1143643, and rs1143633 SNPs of IL1B gene have been genotyped. The results obtained demonstrated that IL1B rs1143633*C and rs16944*A minor allele frequency were significantly lower in patients than in controls. Our results confirm that IL1B rs1143633 and rs16944 SNPs are negatively associated with PTSD which allows us to consider them as protective variants for PTSD. IL1B rs1143633*C and rs16944*A minor allele frequencies and carriage rates are significantly lower in the PTSD patients as compared to the controls. These results may provide a base to conclude that above-mentioned alleles can be protective against PTSD, and IL1B gene can be involved in the pathogenesis of this disorder.
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Affiliation(s)
- Lilit Hovhannisyan
- Institute of Molecular Biology, Armenian National Academy of Sciences, Hasratyan 7 street, 0014, Yerevan, Armenia.
| | - Ani Stepanyan
- Institute of Molecular Biology, Armenian National Academy of Sciences, Hasratyan 7 street, 0014, Yerevan, Armenia
| | - Arsen Arakelyan
- Institute of Molecular Biology, Armenian National Academy of Sciences, Hasratyan 7 street, 0014, Yerevan, Armenia
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Min L, Cheng J, Zhao S, Tian H, Zhang Y, Li S, Yang H, Zheng N, Wang J. Plasma-based proteomics reveals immune response, complement and coagulation cascades pathway shifts in heat-stressed lactating dairy cows. J Proteomics 2016; 146:99-108. [PMID: 27321583 DOI: 10.1016/j.jprot.2016.06.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 06/01/2016] [Accepted: 06/12/2016] [Indexed: 12/15/2022]
Abstract
UNLABELLED Heat stress (HS) has an enormous economic impact on the dairy industry. In recent years, many researchers have investigated changes in the gene expression and metabolomics profiles in dairy cows caused by HS. However, the proteomics profiles of heat-stressed dairy cows have not yet been completely elucidated. We compared plasma proteomics from HS-free and heat-stressed dairy cows using an iTRAQ labeling approach. After the depletion of high abundant proteins in the plasma, 1472 proteins were identified. Of these, 85 proteins were differentially abundant in cows exposed to HS relative to HS-free. Database searches combined with GO and KEGG pathway enrichment analyses revealed that many components of the complement and coagulation cascades were altered in heat-stressed cows compared with HS-free cows. Of these, many factors in the complement system (including complement components C1, C3, C5, C6, C7, C8, and C9, complement factor B, and factor H) were down-regulated by HS, while components of the coagulation system (including coagulation factors, vitamin K-dependent proteins, and fibrinogens) were up-regulated by HS. In conclusion, our results indicate that HS decreases plasma levels of complement system proteins, suggesting that immune function is impaired in dairy cows exposed to HS. BIOLOGICAL SIGNIFICANCE Though many aspects of heat stress (HS) have been extensively researched, relatively little is known about the proteomics profile changes that occur during heat exposure. In this work, we employed a proteomics approach to investigate differential abundance of plasma proteins in HS-free and heat-stressed dairy cows. Database searches combined with GO and KEGG pathway enrichment analyses revealed that HS resulted in a decrease in complement components, suggesting that heat-stressed dairy cows have impaired immune function. In addition, through integrative analyses of proteomics and previous metabolomics, we showed enhanced glycolysis, lipid metabolic pathway shifts, and nitrogen repartitioning in dairy cows exposed to HS. Our findings expand our current knowledge on the effects of HS on plasma proteomics in dairy cows and offer a new perspective for future research.
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Affiliation(s)
- Li Min
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Jianbo Cheng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Shengguo Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - He Tian
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Yangdong Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Songli Li
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Hongjian Yang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Nan Zheng
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - Jiaqi Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
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Chen QL, Luo Z, Huang C, Pan YX, Wu K. De novo characterization of the liver transcriptome of javelin goby Synechogobius hasta and analysis of its transcriptomic profile following waterborne copper exposure. FISH PHYSIOLOGY AND BIOCHEMISTRY 2016; 42:979-994. [PMID: 26719065 DOI: 10.1007/s10695-015-0190-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 12/25/2015] [Indexed: 06/05/2023]
Abstract
Previous studies have investigated the physiological responses to chronic copper (Cu) exposure in the liver of Synechogobius hasta; however, little information is available on the underlying molecular mechanisms. In an effort to better understand the mechanisms of Cu toxicity and to illuminate global gene expression patterns modulated by Cu exposure, we obtained the liver transcriptome information of S. hasta by RNA sequencing (RNA-seq) technology and also investigated the differential expression of genes following waterborne Cu exposure. Using the Illumina sequencing platform, as many as 60,217 unigenes were generated, with 815 bp of average length and 1298 bp of unigene N50 after filtering and assembly. For functional annotation analysis, 34,860, 31,526, 31,576, 25,808, 11,542, and 21,721 unigenes were annotated to the NR, NT, Swiss-Prot, KEGG, COG, and GO databases, respectively, and total annotation unigenes were 37,764. After 30 days of exposure to 55 μg Cu/l, a total of 292 and 1076 genes were significantly up- and down-regulated, respectively. By KEGG analysis, 660 had a specific pathway annotation. Subsequent bioinformatics analysis revealed that the differentially expressed genes were mainly related to lipid metabolism, immune system, apoptosis, and signal transduction, suggesting that these signaling pathways may be regulated by Cu exposure. The present study provides comprehensive sequence information for subsequent gene expression studies regarding S. hasta, and the transcriptome profiling after Cu exposure is also expected to improve our understanding of the molecular toxicology of Cu.
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Affiliation(s)
- Qi-Liang Chen
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture of China, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
- Freshwater Aquaculture Collaborative Innovative Centre of Hubei Province, Wuhan, 430070, China
| | - Zhi Luo
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture of China, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China.
- Freshwater Aquaculture Collaborative Innovative Centre of Hubei Province, Wuhan, 430070, China.
- Department of Animal Sciences, Cornell University, Morrison Hall, Ithaca, NY, 14850, USA.
| | - Chao Huang
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture of China, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
- Freshwater Aquaculture Collaborative Innovative Centre of Hubei Province, Wuhan, 430070, China
| | - Ya-Xiong Pan
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture of China, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
- Freshwater Aquaculture Collaborative Innovative Centre of Hubei Province, Wuhan, 430070, China
| | - Kun Wu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture of China, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
- Freshwater Aquaculture Collaborative Innovative Centre of Hubei Province, Wuhan, 430070, China
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PTSD is associated with an increase in aged T cell phenotypes in adults living in Detroit. Psychoneuroendocrinology 2016; 67:133-41. [PMID: 26894484 PMCID: PMC4826331 DOI: 10.1016/j.psyneuen.2016.01.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 01/27/2016] [Accepted: 01/27/2016] [Indexed: 01/25/2023]
Abstract
BACKGROUND Psychosocial stress is thought to play a key role in the acceleration of immunological aging. This study investigated the relationship between lifetime and past-year history of post-traumatic stress disorder (PTSD) and the distribution of T cell phenotypes thought to be characteristic of immunological aging. METHODS Data were from 85 individuals who participated in the community-based Detroit Neighborhood Health Study. Immune markers assessed included the CD4:CD8 ratio, the ratio of late-differentiated effector (CCR7-CD45RA+CD27-CD28-) to naïve (CCR7+CD45RA+CD27+CD28+) T cells, the percentage of KLRG1-expressing cells, and the percentage of CD57-expressing cells. RESULTS In models adjusted for age, gender, race/ethnicity, education, smoking status, and medication use, we found that past-year PTSD was associated with statistically significant differences in the CD8+ T cell population, including a higher ratio of late-differentiated effector to naïve T cells, a higher percentage of KLRG1+ cells, and a higher percentage of CD57+ cells. The percentage of CD57+ cells in the CD4 subset was also significantly higher and the CD4:CD8 ratio significantly lower among individuals who had experienced past-year PTSD. Lifetime PTSD was also associated with differences in several parameters of immune aging. CONCLUSIONS PTSD is associated with an aged immune phenotype and should be evaluated as a potential catalyzer of accelerated immunological aging in future studies.
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Davydow DS, Lease ED, Reyes JD. Posttraumatic stress disorder in organ transplant recipients: a systematic review. Gen Hosp Psychiatry 2015; 37:387-98. [PMID: 26073159 PMCID: PMC4558384 DOI: 10.1016/j.genhosppsych.2015.05.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 05/15/2015] [Accepted: 05/19/2015] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To summarize and critically review the existing literature on the prevalence of posttraumatic stress disorder (PTSD) following organ transplantation, risk factors for posttransplantation PTSD and the relationship of posttransplant PTSD to other clinical outcomes including health-related quality of life (HRQOL) and mortality. METHODS We conducted a systematic literature review using PubMed, CINAHL Plus, the Cochrane Library and PsycInfo and a search of the online contents of 18 journals. RESULTS Twenty-three studies were included. Posttransplant, the point prevalence of clinician-ascertained PTSD ranged from 1% to 16% (n=738), the point prevalence of questionnaire-assessed substantial PTSD symptoms ranged from 0% to 46% (n=1024) and the cumulative incidence of clinician-ascertained transplant-specific PTSD ranged from 10% to 17% (n=482). Consistent predictors of posttransplant PTSD included history of psychiatric illness prior to transplantation and poor social support posttransplantation. Posttransplant PTSD was consistently associated with worse mental HRQOL and potentially associated with worse physical HRQOL. CONCLUSIONS PTSD may impact a substantial proportion of organ transplant recipients. Future studies should focus on transplant-specific PTSD and clarify potential risk factors for, and adverse outcomes related to, posttransplant PTSD.
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Affiliation(s)
- Dimitry S. Davydow
- Departments of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Erika D. Lease
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, University of Washington, Seattle, WA, USA
| | - Jorge D. Reyes
- Surgery, Division of Transplant Surgery, University of Washington, Seattle, WA, USA
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Core modular blood and brain biomarkers in social defeat mouse model for post traumatic stress disorder. BMC SYSTEMS BIOLOGY 2013; 7:80. [PMID: 23962043 PMCID: PMC3751782 DOI: 10.1186/1752-0509-7-80] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 08/02/2013] [Indexed: 02/07/2023]
Abstract
Background Post-traumatic stress disorder (PTSD) is a severe anxiety disorder that affects a substantial portion of combat veterans and poses serious consequences to long-term health. Consequently, the identification of diagnostic and prognostic blood biomarkers for PTSD is of great interest. Previously, we assessed genome-wide gene expression of seven brain regions and whole blood in a social defeat mouse model subjected to various stress conditions. Results To extract biological insights from these data, we have applied a new computational framework for identifying gene modules that are activated in common across blood and various brain regions. Our results, in the form of modular gene networks that highlight spatial and temporal biological functions, provide a systems-level molecular description of response to social stress. Specifically, the common modules discovered between the brain and blood emphasizes molecular transporters in the blood-brain barrier, and the associated genes have significant overlaps with known blood signatures for PTSD, major depression, and bipolar disease. Similarly, the common modules specific to the brain highlight the components of the social defeat stress response (e.g., fear conditioning pathways) in each brain sub-region. Conclusions Many of the brain-specific genes discovered are consistent with previous independent studies of PTSD or other mental illnesses. The results from this study further our understanding of the mechanism of stress response and contribute to a growing list of diagnostic biomarkers for PTSD.
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Baker DG, Nievergelt CM, O'Connor DT. Biomarkers of PTSD: Neuropeptides and immune signaling. Neuropharmacology 2012; 62:663-73. [DOI: 10.1016/j.neuropharm.2011.02.027] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 02/23/2011] [Accepted: 02/27/2011] [Indexed: 02/07/2023]
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Lu A, Wang H, Hou X, Li H, Cheng G, Wang N, Zhu X, Yu J, Luan W, Liu F, Xu J. Microarray analysis of gene expression profiles of rat small intestine in response to heat stress. ACTA ACUST UNITED AC 2011; 16:655-67. [PMID: 21482723 DOI: 10.1177/1087057111403928] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Ambient temperature is a critical factor that affects biological organisms in many ways. In this study, the authors investigated gene expression changes in rat small intestine in response to heat stress. Male Sprague-Dawley rats were randomly divided into control and heat-stressed groups. Both groups were housed at 25 °C, although the heat-stressed group was also subjected to 40 °C for 2 h each day for 10 successive days. Rats were sacrificed 1, 3, 6, and 10 days after heat treatment, and sections of their small intestine epithelial tissue were excised for morphological examination and microarray analyses. The rat rectal and body surface temperatures and serum cortisol levels were all significantly increased after heat treatment (p < 0.05). The jejuna were significantly damaged by 3 days after heat treatment began. Microarray analysis showed that 422 genes were differentially expressed, of which 290 genes were significantly upregulated and 132 genes were significantly downregulated. Subsequent bioinformatics analyses revealed that the differentially expressed genes were mainly related to stress, immune regulation, and metabolism processes. The bioinformatics analysis of the differentially expressed genes should be beneficial to further investigations on the underlying mechanisms involved in heat stress-induced damage in the small intestine.
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Affiliation(s)
- An Lu
- CAU-BUA TCVM Teaching & Research Team, College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, P. R. China
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