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Khodaei H, Azimi L, Akhavan Sepahy A, Ashrafi F, Rajabnejad M. Improved heat shock method for extracting total RNA from nasopharyngeal swab samples even with low viral load. Diagn Microbiol Infect Dis 2024; 109:116210. [PMID: 38452554 DOI: 10.1016/j.diagmicrobio.2024.116210] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/04/2024] [Accepted: 02/09/2024] [Indexed: 03/09/2024]
Abstract
This study aimed to improve the heat shock method as a cost-effective and time-efficient for total RNA extraction. We compared the effectiveness of two total RNA extraction methods by using Real-Time PCR for nasopharynx swabs. Include: I; use of a commercial total RNA extraction kit as a standard. II; utilized a modified heat shock method (MHS). Time, centrifuge speed and duration, proteinase K, and RNA carrier were optimized. The optimized parameters included treating the sample with 5 μg/μL at 56°C for 5 minutes, heating at 95°C for 5 minutes followed by thermal shock in ice for 3 minutes, adding 4 μg/μL RNA carrier at room temperature for 3 minutes, and centrifuging at 7000 rpm for 10 minutes. This optimization demonstrated a sensitivity and specificity of 100% (CI: 95%) even in samples with low viral load. Our in-house method presents a rapid, and cost-effective alternative for total RNA extraction.
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Affiliation(s)
- Hannan Khodaei
- Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University, Tehran North Branch, Tehran, Iran
| | - Leila Azimi
- Pediatric Infections Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Abbas Akhavan Sepahy
- Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University, Tehran North Branch, Tehran, Iran
| | - Fatemeh Ashrafi
- Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University, Tehran North Branch, Tehran, Iran
| | - Maryam Rajabnejad
- Pediatric Infections Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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2
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Chen H, Xie Y, Zhang M, Huang J, Jiang W, Zhang R, Li C, Du X, Chen H, Nie Q, Liang S, Tan Q, Yang J, Jin M, Huang S, Kuang L, Su N, Qi H, Luo X, Xu X, Deng C, Chen L, Luo F. An Hsp70 promoter-based mouse for heat shock-induced gene modulation. J Mol Med (Berl) 2024; 102:693-707. [PMID: 38492027 DOI: 10.1007/s00109-024-02433-9] [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: 01/04/2023] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 03/18/2024]
Abstract
Physical therapy is extensively employed in clinical settings. Nevertheless, the absence of suitable animal models has resulted in an incomplete understanding of the in vivo mechanisms and cellular distribution that respond to physical stimuli. The objective of this research was to create a mouse model capable of indicating the cells affected by physical stimuli. In this study, we successfully established a mouse line based on the heat shock protein 70 (Hsp70) promoter, wherein the expression of CreERT2 can be induced by physical stimuli. Following stimulation of the mouse tail, ear, or cultured calvarias with heat shock (generated by heating, ultrasound, or laser), a distinct Cre-mediated excision was observed in cells stimulated by these physical factors with minimal occurrence of leaky reporter expression. The application of heat shock to Hsp70-CreERT2; FGFR2-P253R double transgenic mice or Hsp70-CreERT2 mice infected with AAV-BMP4 at calvarias induced the activation of Cre-dependent mutant FGFR2-P253R or BMP4 respectively, thereby facilitating the premature closure of cranial sutures or the repair of calvarial defects. This novel mouse line holds significant potential for investigating the underlying mechanisms of physical therapy, tissue repair and regeneration, lineage tracing, and targeted modulation of gene expression of cells in local tissue stimulated by physical factor at the interested time points. KEY MESSAGES: In the study, an Hsp70-CreERT2 transgenic mouse was generated for heat shock-induced gene modulation. Heat shock, ultrasound, and laser stimulation effectively activated Cre expression in Hsp70-CreERT2; reporter mice, which leads to deletion of floxed DNA sequence in the tail, ear, and cultured calvaria tissues of mice. Local laser stimuli on cultured calvarias effectively induce Fgfr2-P253R expression in Hsp70-mTmG-Fgfr2-P253R mice and result in accelerated premature closure of cranial suture. Heat shock activated AAV9-FLEX-BMP4 expression and subsequently promoted the repair of calvarial defect of Hsp70-CreERT2; Rosa26-mTmG mice.
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Affiliation(s)
- Hangang Chen
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Yangli Xie
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Mei Zhang
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Junlan Huang
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Wanling Jiang
- Department of Chinese Medicine Rehabilitation, Chongqing Emergency Medical Center, Chongqing University Central Hospital), Chongqing, 400042, China
| | - Ruobin Zhang
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Can Li
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Xiaolan Du
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Hua Chen
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Qiang Nie
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Sen Liang
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Qiaoyan Tan
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Jing Yang
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Min Jin
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Shuo Huang
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Liang Kuang
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Nan Su
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Huabing Qi
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Xiaoqing Luo
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Xiaoling Xu
- Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Chuxia Deng
- Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Lin Chen
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China.
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China.
| | - Fengtao Luo
- Laboratory of Wound Repair and Rehabilitation Medicine, Daping Hospital, Third Military Medical University, Chongqing, 400042, China.
- State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing, 400038, China.
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3
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Rivi V, Batabyal A, Benatti C, Sarti P, Blom JMC, Tascedda F, Lukowiak K. A translational and multidisciplinary approach to studying the Garcia effect, a higher form of learning with deep evolutionary roots. J Exp Biol 2024; 227:jeb247325. [PMID: 38639079 DOI: 10.1242/jeb.247325] [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] [Indexed: 04/20/2024]
Abstract
Animals, including humans, learn and remember to avoid a novel food when its ingestion is followed, hours later, by sickness - a phenomenon initially identified during World War II as a potential means of pest control. In the 1960s, John Garcia (for whom the effect is now named) demonstrated that this form of conditioned taste aversion had broader implications, showing that it is a rapid but long-lasting taste-specific food aversion with a fundamental role in the evolution of behaviour. From the mid-1970s onward, the principles of the Garcia effect were translated to humans, showing its role in different clinical conditions (e.g. side-effects linked to chemotherapy). However, in the last two decades, the number of studies on the Garcia effect has undergone a considerable decline. Since its discovery in rodents, this form of learning was thought to be exclusive to mammals; however, we recently provided the first demonstration that a Garcia effect can be formed in an invertebrate model organism, the pond snail Lymnaea stagnalis. Thus, in this Commentary, after reviewing the experiments that led to the first characterization of the Garcia effect in rodents, we describe the recent evidence for the Garcia effect in L. stagnalis, which may pave the way for future studies in other invertebrates and mammals. This article aims to inspire future translational and ecological studies that characterize the conserved mechanisms underlying this form of learning with deep evolutionary roots, which can be used to address a range of different biological questions.
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Affiliation(s)
- Veronica Rivi
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Anuradha Batabyal
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada, T2N 1N4
- Department of Physical and Natural Sciences, FLAME University, Pune - 412115, Maharashtra, India
| | - Cristina Benatti
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Centre of Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Pierfrancesco Sarti
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Johanna Maria Catharina Blom
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Centre of Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Fabio Tascedda
- Centre of Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- CIB, Consorzio Interuniversitario Biotecnologie, 34148 Trieste, Italy
| | - Ken Lukowiak
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada, T2N 1N4
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Rubio-Tomás T, Alegre-Cortés E, Lionaki E, Fuentes JM, Tavernarakis N. Heat shock and thermotolerance in Caenorhabditis elegans: An overview of laboratory techniques. Methods Cell Biol 2024; 185:1-17. [PMID: 38556443 DOI: 10.1016/bs.mcb.2024.02.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
The soil nematode worm Caenorhabditis elegans is a simple and well-established model for the study of many biological processes. Heat shock and thermotolerance assays have been developed for this nematode, and have been used to decipher the molecular relationships between thermal stress and aging, among others. Nevertheless, a systematic and methodological comparison of the different approaches and tools utilized is lacking in the literature. Here, we aim to provide a comprehensive summary of the most commonly used strategies for carrying out heat shock and thermotolerance assays that have been reported, highlighting specific readouts and scientific questions that can be addressed. Furthermore, we offer examples of thermotolerance assays performed with wild type nematodes, that can serve as a gauge of the animal survival under diverse conditions of stress.
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Affiliation(s)
- Teresa Rubio-Tomás
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - Eva Alegre-Cortés
- Universidad de Extremadura, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Enfermería y Terapia Ocupacional, Cáceres, Spain; Instituto Universitario de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain
| | - Eirini Lionaki
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
| | - José M Fuentes
- Universidad de Extremadura, Departamento de Bioquímica y Biología Molecular y Genética, Facultad de Enfermería y Terapia Ocupacional, Cáceres, Spain; Instituto Universitario de Investigación Biosanitaria de Extremadura (INUBE), Cáceres, Spain; Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas-Instituto de Salud Carlos III (CIBER-CIBERNED-ISCIII), Madrid, Spain.
| | - Nektarios Tavernarakis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece; Division of Basic Sciences, School of Medicine, University of Crete, Heraklion, Greece.
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5
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Derunets AS, Selimzyanova AI, Rykov SV, Kuznetsov AE, Berezina OV. Strategies to enhance stress tolerance in lactic acid bacteria across diverse stress conditions. World J Microbiol Biotechnol 2024; 40:126. [PMID: 38446232 DOI: 10.1007/s11274-024-03905-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 01/21/2024] [Indexed: 03/07/2024]
Abstract
Lactic acid bacteria (LAB) hold significant importance in diverse fields, including food technology, industrial biotechnology, and medicine. As basic components of starter cultures, probiotics, immunomodulators, and live vaccines, LAB cells resist a variety of stressors, including temperature fluctuations, osmotic and pH shocks, exposure to oxidants and ultraviolet radiation, substrate deprivation, mechanical damage, and more. To stay alive in these adversities, LAB employ a wide range of stress response strategies supported by various mechanisms, for example rearrangement of metabolism, expression of specialized biomolecules (e.g., chaperones and antioxidants), exopolysaccharide synthesis, and complex repair and regulatory systems. LAB can coordinate responses to various stressors using global regulators. In this review, we summarize current knowledge about stress response strategies used by LAB and consider mechanisms of response to specific stressful factors, supported by illustrative examples. In addition, we discuss technical approaches to increase the stress resistance of LAB, including pre-adaptation, genetic modification of strains, and adjustment of cultivation conditions. A critical analysis of the recent findings in this field augments comprehension of stress tolerance mechanisms in LAB, paving the way for prospective research directions with implications in fundamental and practical areas.
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Affiliation(s)
- A S Derunets
- National Research Center Kurchatov Institute, Moscow, Russia.
| | | | - S V Rykov
- National Research Center Kurchatov Institute, Moscow, Russia
| | - A E Kuznetsov
- D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - O V Berezina
- National Research Center Kurchatov Institute, Moscow, Russia
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6
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Casali C, Galgano L, Zannino L, Siciliani S, Cavallo M, Mazzini G, Biggiogera M. Impact of heat and cold shock on epigenetics and chromatin structure. Eur J Cell Biol 2024; 103:151373. [PMID: 38016352 DOI: 10.1016/j.ejcb.2023.151373] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/01/2023] [Accepted: 11/14/2023] [Indexed: 11/30/2023] Open
Abstract
Cells are continuously exposed to various sources of insults, among which temperature variations are extremely common. Epigenetic mechanisms, critical players in gene expression regulation, undergo alterations due to these stressors, potentially leading to health issues. Despite the significance of DNA methylation and histone modifications in gene expression regulation, their changes following heat and cold shock in human cells remain poorly understood. In this study, we investigated the epigenetic profiles of human cells subjected to hyperthermia and hypothermia, revealing significant variations. Heat shock primarily led to DNA methylation increments and epigenetic modifications associated with gene expression silencing. In contrast, cold shock presented a complex scenario, with both methylation and demethylation levels increasing, indicating different epigenetic responses to the opposite thermal stresses. These temperature-induced alterations in the epigenome, particularly their impact on chromatin structural organization, represent an understudied area that could offer important insights into genome function and potential prospects for therapeutic targets.
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Affiliation(s)
- Claudio Casali
- Laboratory of Cell Biology and Neurobiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100 Pavia, Italy.
| | - Luca Galgano
- Laboratory of Biochemistry, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Lorena Zannino
- Laboratory of Cell Biology and Neurobiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Stella Siciliani
- Laboratory of Cell Biology and Neurobiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Margherita Cavallo
- Laboratory of Cell Biology and Neurobiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100 Pavia, Italy
| | | | - Marco Biggiogera
- Laboratory of Cell Biology and Neurobiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100 Pavia, Italy
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Veres T, Kerestély M, Kovács BM, Keresztes D, Schulc K, Seitz E, Vassy Z, Veres DV, Csermely P. Cellular forgetting, desensitisation, stress and ageing in signalling networks. When do cells refuse to learn more? Cell Mol Life Sci 2024; 81:97. [PMID: 38372750 PMCID: PMC10876757 DOI: 10.1007/s00018-024-05112-7] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/09/2023] [Accepted: 01/02/2024] [Indexed: 02/20/2024]
Abstract
Recent findings show that single, non-neuronal cells are also able to learn signalling responses developing cellular memory. In cellular learning nodes of signalling networks strengthen their interactions e.g. by the conformational memory of intrinsically disordered proteins, protein translocation, miRNAs, lncRNAs, chromatin memory and signalling cascades. This can be described by a generalized, unicellular Hebbian learning process, where those signalling connections, which participate in learning, become stronger. Here we review those scenarios, where cellular signalling is not only repeated in a few times (when learning occurs), but becomes too frequent, too large, or too complex and overloads the cell. This leads to desensitisation of signalling networks by decoupling signalling components, receptor internalization, and consequent downregulation. These molecular processes are examples of anti-Hebbian learning and 'forgetting' of signalling networks. Stress can be perceived as signalling overload inducing the desensitisation of signalling pathways. Ageing occurs by the summative effects of cumulative stress downregulating signalling. We propose that cellular learning desensitisation, stress and ageing may be placed along the same axis of more and more intensive (prolonged or repeated) signalling. We discuss how cells might discriminate between repeated and unexpected signals, and highlight the Hebbian and anti-Hebbian mechanisms behind the fold-change detection in the NF-κB signalling pathway. We list drug design methods using Hebbian learning (such as chemically-induced proximity) and clinical treatment modalities inducing (cancer, drug allergies) desensitisation or avoiding drug-induced desensitisation. A better discrimination between cellular learning, desensitisation and stress may open novel directions in drug design, e.g. helping to overcome drug resistance.
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Affiliation(s)
- Tamás Veres
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Márk Kerestély
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Borbála M Kovács
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Dávid Keresztes
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Klára Schulc
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary
- Division of Oncology, Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
| | - Erik Seitz
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Zsolt Vassy
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Dániel V Veres
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary
- Turbine Ltd, Budapest, Hungary
| | - Peter Csermely
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary.
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Angel SO, Vanagas L, Alonso AM. Mechanisms of adaptation and evolution in Toxoplasma gondii. Mol Biochem Parasitol 2024; 258:111615. [PMID: 38354788 DOI: 10.1016/j.molbiopara.2024.111615] [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: 09/15/2023] [Revised: 12/28/2023] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Toxoplasma has high host flexibility, infecting all nucleated cells of mammals and birds. This implies that during its infective process the parasite must constantly adapt to different environmental situations, which in turn leads to modifications in its metabolism, regulation of gene transcription, translation of mRNAs and stage specific factors. There are conserved pathways that support these adaptations, which we aim to elucidate in this review. We begin by exploring the widespread epigenetic mechanisms and transcription regulators, continue with the supportive role of Heat Shock Proteins (Hsp), the translation regulation, stress granules, and finish with the emergence of contingency genes in highly variable genomic domains, such as subtelomeres. Within epigenetics, the discovery of a new histone variant of the H2B family (H2B.Z), contributing to T. gondii virulence and differentiation, but also gene expression regulation and its association with the metabolic state of the parasite, is highlighted. Associated with the regulation of gene expression are transcription factors (TFs). An overview of the main findings on TF and development is presented. We also emphasize the role of Hsp90 and Tgj1 in T. gondii metabolic fitness and the regulation of protein translation. Translation regulation is also highlighted as a mechanism for adaptation to conditions encountered by the parasite as well as stress granules containing mRNA and proteins generated in the extracellular tachyzoite. Another important aspect in evolution and adaptability are the subtelomeres because of their high variability and gene duplication rate. Toxoplasma possess multigene families of membrane proteins and contingency genes that are associated with different metabolic stresses. Among them parasite differentiation and environmental stresses stand out, including those that lead tachyzoite to bradyzoite conversion. Finally, we are interested in positioning protozoa as valuable evolution models, focusing on research related to the Extended Evolutionary Synthesis, based on models recently generated, such as extracellular adaptation and ex vivo cyst recrudescence.
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Affiliation(s)
- Sergio O Angel
- Laboratorio de Parasitología Molecular, INTECH, CONICET-UNSAM, Av. Intendente Marino Km. 8.2, C.C 164, (B7130IIWA), Chascomús, Prov, Buenos Aires, Argentina.
| | - Laura Vanagas
- Laboratorio de Parasitología Molecular, INTECH, CONICET-UNSAM, Av. Intendente Marino Km. 8.2, C.C 164, (B7130IIWA), Chascomús, Prov, Buenos Aires, Argentina.
| | - Andres M Alonso
- Laboratorio de Parasitología Molecular, INTECH, CONICET-UNSAM, Av. Intendente Marino Km. 8.2, C.C 164, (B7130IIWA), Chascomús, Prov, Buenos Aires, Argentina.
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9
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Santelli S, Berti L, Giovannini E, Pelletti G, Pelotti S, Fais P. Homicide, suicide, or accident? Complex differential diagnosis. A case series. Leg Med (Tokyo) 2024; 66:102357. [PMID: 37984052 DOI: 10.1016/j.legalmed.2023.102357] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 11/12/2023] [Indexed: 11/22/2023]
Abstract
Distinguishing between homicides, suicides, and accidental deaths remains a challenging task. The examination of actual cases, which involve a multitude of variables, significantly contributes to our understanding of these matters. In this context, we present three distinct cases that required the involvement of various specialists to conduct a thorough analysis of the manner of death. In the first case, the integration of on-site inspection, autopsy, radiological, and kinematic data enabled the identification of a homicidal death. In the second case, the combination of circumstantial evidence, autopsy findings, toxicological analysis, and meteorological data revealed an atypical accidental death resulting from an attempted suicide. In the third case, radiological findings, supplemented with criteria from forensic science, indicated an accidental manner of death. In all reported cases, a multidisciplinary approach played a pivotal role in the differential diagnosis of the manner of death.
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Affiliation(s)
- Simone Santelli
- Department of Medical and Surgical Sciences, Unit of Legal Medicine, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy.
| | - Luca Berti
- Department of Medical and Surgical Sciences, Unit of Legal Medicine, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy.
| | - Elena Giovannini
- Department of Medical and Surgical Sciences, Unit of Legal Medicine, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy.
| | - Guido Pelletti
- Department of Medical and Surgical Sciences, Unit of Legal Medicine, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy.
| | - Susi Pelotti
- Department of Medical and Surgical Sciences, Unit of Legal Medicine, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy.
| | - Paolo Fais
- Department of Medical and Surgical Sciences, Unit of Legal Medicine, University of Bologna, Via Irnerio 49, 40126, Bologna, Italy.
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Trivedi R, Knopf B, Rakoczy S, Manocha GD, Brown-Borg H, Jurivich DA. Disrupted HSF1 regulation in normal and exceptional brain aging. Biogerontology 2024; 25:147-160. [PMID: 37707683 PMCID: PMC10794279 DOI: 10.1007/s10522-023-10063-w] [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: 06/13/2023] [Accepted: 08/10/2023] [Indexed: 09/15/2023]
Abstract
Brain aging is a major risk factor for cognitive diseases such as Alzheimer's disease (AD) and vascular dementia. The rate of aging and age-related pathology are modulated by stress responses and repair pathways that gradually decline with age. However, recent reports indicate that exceptional longevity sustains and may even enhance the stress response. Whether normal and exceptional aging result in either attenuated or enhanced stress responses across all organs is unknown. This question arises from our understanding that biological age differs from chronological age and evidence that the rate of aging varies between organs. Thus, stress responses may differ between organs and depend upon regenerative capacity and ability to manage damaged proteins and proteotoxicity. To answer these questions, we assessed age-dependent changes in brain stress responses with normally aged wild type and long-lived Dwarf mice. Results from this study show that normal aging unfavorably impacts activation of the brain heat shock (HS) axis with key changes noted in the transcription factor, HSF1, and its regulation. Exceptional aging appears to preserve and strengthen many elements of HSF1 activation in the brain. These results support the possibility that reconstitution of aging brain stress responses requires a multi-factorial approach that addresses HSF1 protein levels, its DNA binding, and regulatory elements such as phosphorylation and protein interactions.
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Affiliation(s)
- Rachana Trivedi
- Department of Geriatrics, School of Medicine and Health Sciences, University of North Dakota, 1301 N Columbia Rd, Grand Forks, ND, 58201, USA
| | - Bailey Knopf
- Department of Geriatrics, School of Medicine and Health Sciences, University of North Dakota, 1301 N Columbia Rd, Grand Forks, ND, 58201, USA
| | - Sharlene Rakoczy
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, 58202, USA
| | - Gunjan D Manocha
- Department of Geriatrics, School of Medicine and Health Sciences, University of North Dakota, 1301 N Columbia Rd, Grand Forks, ND, 58201, USA
| | - Holly Brown-Borg
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, 58202, USA
| | - Donald A Jurivich
- Department of Geriatrics, School of Medicine and Health Sciences, University of North Dakota, 1301 N Columbia Rd, Grand Forks, ND, 58201, USA.
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Mzedawee HRH, Kowsar R, Moradi-Hajidavaloo R, Shiasi-Sardoabi R, Sadeghi K, Nasr-Esfahani MH, Hajian M. Heat shock interferes with the amino acid metabolism of bovine cumulus-oocyte complexes in vitro: a multistep analysis. Amino Acids 2024; 56:2. [PMID: 38285159 PMCID: PMC10824825 DOI: 10.1007/s00726-023-03370-6] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 11/27/2023] [Indexed: 01/30/2024]
Abstract
By affecting the ovarian pool of follicles and their enclosed oocytes, heat stress has an impact on dairy cow fertility. This study aimed to determine how heat shock (HS) during in vitro maturation affected the ability of the bovine cumulus-oocyte complexes (COCs) to develop, as well as their metabolism of amino acids (AAs). In this study, COCs were in vitro matured for 23 h at 38.5 °C (control; n = 322), 39.5 °C (mild HS (MHS); n = 290), or 40.5 °C (severe HS (SHS); n = 245). In comparison to the control group, the MHS and SHS groups significantly decreased the percentage of metaphase-II oocytes, as well as cumulus cell expansion and viability. The SHS decreased the rates of cleavage and blastocyst formation in comparison to the control and MHS. Compared to the control and MHS-COCs, the SHS-COCs produced significantly more phenylalanine, threonine, valine, arginine, alanine, glutamic acid, and citrulline while depleting less leucine, glutamine, and serine. Data showed that SHS-COCs had the highest appearance and turnover of all AAs and essential AAs. Heat shock was positively correlated with the appearance of glutamic acid, glutamine, isoleucine, alanine, serine, valine, phenylalanine, and asparagine. Network analysis identified the relationship between HS and alanine or glutamic acid, as well as the relationship between blastocyst and cleavage rates and ornithine. The findings imply that SHS may have an impact on the quality and metabolism of AAs in COCs. Moreover, the use of a multistep analysis could simply identify the AAs most closely linked to HS and the developmental competence of bovine COCs.
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Affiliation(s)
| | - Rasoul Kowsar
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan, Iran.
| | - Reza Moradi-Hajidavaloo
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Roya Shiasi-Sardoabi
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Khaled Sadeghi
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Mehdi Hajian
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.
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12
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Shahila Ismail KI, Kumar CVS, Aneesha U, Syama PS, Sajini KP. Comparative analysis of gut bacteria of silkworm Bombyx mori L. on exposure to temperature through 16S rRNA high throughput metagenomic sequencing. J Invertebr Pathol 2023; 201:107992. [PMID: 37741505 DOI: 10.1016/j.jip.2023.107992] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023]
Abstract
Global warming is one of the serious threats that adversely affects the development and reproduction of silkworms. The ideal temperature for silkworms to carryout normal life activities is 20-30 °C. Certain bivoltine silkworms that are raised in tropical regions are thermotolerant. But, prolonged exposure to high temperatures may be fatal. In the present study, fifth instar larvae of bivoltine silkworm were exposed to heat shock at 40 ± 2 °C for a short period of one hour per day to examine the changes in the gut microflora. The study used high throughput sequencing to evaluate the impact of intestinal microbes of silkworms in response to high temperature. The findings demonstrated that elevated temperature has a negative impact on the intestinal microbes of silkworm compared to the control which were reared under the optimum temperature (25 ± 3° C). Four hundred and fifty eight (458) species of microbes were reported in the control group whereas only 434 species were reported in the temperature exposed group. The digestive process of silkworms may also be impaired by heat shock due to their effect on digestive enzymes. So, the results indicated that heat shock has an impact on the intestinal microflora of silkworms that control the activity of associated digestive enzymes which affects the digestion and nutritional intake, eventually impacting the growth and development of silkworm larvae and cocoons produced. The morphometric parameters of silkworm larvae and cocoons also showed a considerable drop when exposed to heat shock.
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Affiliation(s)
- K I Shahila Ismail
- P.G. and Research Department of Zoology, Govt. Victoria College, Palakkad, India.
| | - C V Sreeranjit Kumar
- P.G. and Research Department of Zoology, Govt. Victoria College, Palakkad, India.
| | - U Aneesha
- P.G. and Research Department of Zoology, Govt. Victoria College, Palakkad, India
| | - P S Syama
- P.G. and Research Department of Zoology, Govt. Victoria College, Palakkad, India
| | - K P Sajini
- P.G. and Research Department of Zoology, Govt. Victoria College, Palakkad, India
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13
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Faheem MS, Ghanem N, Samy R, Barkawi AH. Molecular, enzymatic responses and in vitro embryonic developmental competency of heat-shocked buffalo embryos co-cultured with granulosa cells monolayer. Theriogenology 2023; 211:203-211. [PMID: 37659251 DOI: 10.1016/j.theriogenology.2023.08.009] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 08/14/2023] [Accepted: 08/15/2023] [Indexed: 09/04/2023]
Abstract
The present study was designed to establish a suitable alternative approach to mitigate the adverse effect of high culture temperature on in vitro embryo development and the related molecular response in buffalo. Pre-cultured granulosa cells (GCs) were used as a monolayer during in vitro embryo culture until day 8 (day of fertilization = D0). Post fertilization, presumptive embryos were randomly assigned into two culture conditions: embryos cultured in the presence of GCs monolayer under normal culture temperature (N: 38.5 °C; GEN group) or heat shock (H: 40.5 °C; GEH group) and their counterpart groups of embryos cultured without GCs (EN and EH groups). Additionally, two groups of GCs monolayer were cultured without embryos up to day 8 under 38.5 °C (GN) or 40.5 °C (GH) for further spent culture media enzymatic analyses. Heat shock was administered for the first 2 h of culture then continued at 38.5 °C until day 8. The results indicated that under heat treatment, GCs enhanced (P ≤ 0.05) embryo cleavage and development (day 8) rates, which were comparable to the embryos cultured at 38.5 °C. On the molecular level, blastocysts of the GEH group showed similar expressions of metabolism-regulating genes (CPT2 and SlC2A1/GLUT1) and an antioxidant gene (SOD2) when compared to the blastocysts of the EN group. The relative expression of HSP90 was significantly up-regulated under heat shock and/or co-culture conditions. However, HSF1 expression was increased (P ≤ 0.05) in the GEH group. No statistical differences were observed among the study groups for the pluripotency gene NANOG, and stress resistance transcript NFE2L2. Regarding the enzymatic profile, the concentrations of SOD, total protein, and MDA were decreased (P ≤ 0.05) in the GEH group compared to the cultured GCs without embryos (GH group). In conclusion, GCs as a monolayer have a beneficial impact on alleviating heat stress at the zygote stage through the regulatory mechanisms of metabolic activity, defense system, and heat shock response genes.
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Affiliation(s)
- Marwa S Faheem
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt; Cairo University Research Park (CURP), Faculty of Agriculture, Cairo University, Giza, Egypt.
| | - Nasser Ghanem
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Romysa Samy
- Cairo University Research Park (CURP), Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Ashraf Hesham Barkawi
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt; Dubai Police Academy, Dubai, United Arab Emirates
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Vasilchenko AS, Gurina EV, Drozdov KA, Vershinin NA, Kravchenko SV, Vasilchenko AV. Exploring the antibacterial action of gliotoxin: Does it induce oxidative stress or protein damage? Biochimie 2023; 214:86-95. [PMID: 37356563 DOI: 10.1016/j.biochi.2023.06.009] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/08/2023] [Accepted: 06/16/2023] [Indexed: 06/27/2023]
Abstract
The study aimed to investigate the effects of gliotoxin (GTX), a secondary fungal metabolite belonging to the epipolythiodioxopiperazines class, on Gram-positive and Gram-negative bacteria. While the cytotoxic mechanism of GTX on eukaryotes is well understood, its interaction with bacteria is not yet fully comprehended. The study discovered that S. epidermidis displayed a higher uptake rate of GTX than E.coli. However, Gram-negative bacteria required higher doses of GTX than Gram-positive bacteria to experience the bactericidal effect, which occurred within 4 h for both types of bacteria. The treatment of bioluminescent sensor E.coli MG1655 pKatG-lux with GTX resulted in oxidative stress. Pre-incubation with the antioxidant Trolox did not increase the GTX inhibitory dose, however, slightly increased the bacterial growth rate comparing to GTX alone. At the same time, we found that GTX inhibitory dose was significantly increased by the pretreatment of bacteria with 2-mercaptoethanol and reduced glutathione. Using another biosensor, E. coli MG1655 pIpbA-lux, we showed that bacteria treated with GTX exhibited heat shock stress. SDS-page electrophoresis demonstrated protein aggregation under the GTX treatment. In addition, we have found that gliotoxin's action on bacteria was significantly inhibited when zinc salt was added to the growth medium.
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Affiliation(s)
- Alexey S Vasilchenko
- Laboratory of Antimicrobial Resistance, Institute of Ecological and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia.
| | - Elena V Gurina
- Laboratory of Antimicrobial Resistance, Institute of Ecological and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia
| | - Konstantin A Drozdov
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry Far Eastern Branch of Russian Academy of Sciences, Vladivostok, Russia
| | - Nikita A Vershinin
- Laboratory of Antimicrobial Resistance, Institute of Ecological and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia
| | - Sergey V Kravchenko
- Laboratory of Antimicrobial Resistance, Institute of Ecological and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia
| | - Anastasia V Vasilchenko
- Laboratory of Antimicrobial Resistance, Institute of Ecological and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia
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15
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Khatun S, Kim T, Mollah MMI. Heat shock increases the anti-inflammatory and anti-obesity activity of soybean by increasing polyphenol, antioxidant and aglycon form isoflavones. Heliyon 2023; 9:e21944. [PMID: 38034630 PMCID: PMC10682200 DOI: 10.1016/j.heliyon.2023.e21944] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
We know that heat shock can activate the functional components in soybeans, but we don't know the type, level, and duration of heat shock for maximum activation. To address this, the present study investigated the changes in functional components like polyphenols, antioxidants, and isoflavones in soybeans at various temperature levels and durations with their respective functionality or health benefits. For this, treated seed samples were extracted with 70 % ethanol. Heat shock at 60 °C for 2 h increased polyphenol content (60.67 % of control) and antioxidant activity for both ABTS (41.14 % of control) and DPPH (217.72 % of control). This also increased the beneficial aglycone form of isoflavones that includes daidzein (8.36-fold of control), glycitein (3.85-fold of control) and genistein (20.50-fold of control) but decreased the harmful β-glucoside form (3.65-fold) including daiazin (1.84-fold of control); glycitin (1.45-fold of control) and genistin (23.88-fold of control) over untreated dry seed. This may happen because of the conversion of conjugated β-glucoside isoflavones to their aglycone forms that have various health benefits. Maximum inhibition of NO production in RAW 264.7 cells was achieved by samples elicited for 2 h with 300 μg/mL concentration. This sample also confirmed the maximum anti-obesity activity treated against 3-T-3L1 cells. This study summarized that heat shock at 60 °C for 2 h increased polyphenols, antioxidants, and aglycon isoflavone in soybeans resulting in increased anti-inflammatory and anti-obesity activity.
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Affiliation(s)
- Soyema Khatun
- Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2022, Bangladesh
- Department of Food Science and Biotechnology, Andong National University, Andong-1375, Republic of Korea
| | - Taewan Kim
- Department of Food Science and Biotechnology, Andong National University, Andong-1375, Republic of Korea
| | - Md. Mahi Imam Mollah
- Department of Entomology, Patuakhali Science and Technology University, Patuakhali-8602, Bangladesh
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Jimoh OA, Daramola OT, Okin-Aminu HO, Ojo OA. HSP70, adiponectin, leptin, pro-inflammatory cytokines and metabolic hormones of heat-stressed broilers fed herbal supplements. J Therm Biol 2023; 117:103681. [PMID: 37633071 DOI: 10.1016/j.jtherbio.2023.103681] [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: 08/30/2022] [Revised: 07/28/2023] [Accepted: 08/09/2023] [Indexed: 08/28/2023]
Abstract
Global warming undoubtedly is a serious challenge facing poultry production especially in tropical climate, which subject animals to heat-stressed conditions leading to multiple physiological alterations. An investigation was conducted to determine the role of herbal supplements on adipokines, pro-inflammatory cytokines and metabolic hormones of broilers exposed to heat stress. 200 a day-old broiler chicks were randomly allotted to standard diets; diet 1 without leaf meal (T1), diet 2 with 5% Moringa oleifera (T2), diet 3 with 5% Phyllanthus amarus (T3) and diet 4 with 5% mistletoe; Viscum album (T4) in a 49-day feed trial during the peak of thermal discomfort in Southern Nigeria, to assess hormones, adipokines and cytokines using standard procedures. Results obtained shows that triiodothyronine of birds fed phyllanthus and mistletoe were significantly (p < 0.05) higher than birds on basal diet. Corticosterone of birds fed mistletoe and phyllanthus were significantly (p < 0.05) lower than those obtained in birds on basal diet. Heat shock protein of birds fed on moringa supplements were significantly (p < 0.05) lower than those in birds on basal diet. The adiponectin of birds fed on basal diet were statistically (p < 0.05) higher than other treatments. Interleukin 6 of birds on phyllanthus and mistletoe supplements were not significantly (p > 0.05) different from birds on basal diet. Interleukin 1β of birds fed basal diet was significantly (p < 0.05) higher than birds fed moringa supplements and the significantly (p < 0.05) least values obtained in those of birds fed phyllanthus supplement. Tumor necrosis factor α of birds fed on phyllanthus and mistletoe were significantly (p < 0.05) higher than birds fed basal diet and the significantly (p < 0.05) least values were obtained in birds fed moringa supplement. In conclusion, three herbal supplements decreased the HSP 70, leptin and adiponectin of broilers exposed to heat stress and moringa supplements lower pro-inflammatory cytokine expression in heat stress birds.
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Affiliation(s)
- Olatunji Abubakar Jimoh
- Department of Agricultural Technology, The Federal Polytechnic, Ado-Ekiti, Ekiti State, Nigeria.
| | | | | | - Olayinka Abosede Ojo
- Department of Animal Production, Fisheries and Aquaculture, Kwara State University, Molete, Kwara State, Nigeria
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Rezaei M, Ghasemi Y, Sharifan A, Bakhoda H. Gamma-Aminobutyric Acid (GABA) Biosynthesis from Lactobacillus plantarum subsp. plantarum IBRC10817 Optimized and Modeled in Response to Heat and Ultrasonic Shock. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10099-x. [PMID: 37389791 DOI: 10.1007/s12602-023-10099-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2023] [Indexed: 07/01/2023]
Abstract
Gamma-aminobutyric acid is one of the major inhibitory neurotransmitters in the nervous system. Although gamma-aminobutyric acid is commonly synthesized by chemical methods, its microbial biosynthesis is regarded as one of the best production methods among the conventional techniques. This study aimed to optimize and model the production of gamma-aminobutyric acid from Lactobacillus plantarum subsp. plantarum IBRC (10,817) under the influence of heat and ultrasonic shock using the response surface methodology. Heat and ultrasonic shock were applied in the lag phase of bacterial growth. Heat shock variables included heat treatment, monosodium glutamate concentration, and incubation time. Also, ultrasonic shock variables were ultrasonic intensity, ultrasonic time, incubation time, and monosodium glutamate concentration. By applying the 30.9 h of incubation, 3.082 g/L of monosodium glutamate, and thermal shock of 49.958 °C for 30 min, the production of 295.04 mg/L of gamma amino butyric acid was predicted. As for ultrasonic shock, using 3.28 (g/L) monosodium glutamate, 70 h of bacterial incubation, 7.7 min ultrasound shock, and ultrasound frequency of 26.58 kHz, the highest amount of metabolite production was anticipated to be 215.19 mg/L. Overall, it was found that the actual values were consistent with the predicted values.
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Affiliation(s)
- Mahboobeh Rezaei
- Department of the Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Younes Ghasemi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Shiraz University of Medical Science, Shiraz, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Anousheh Sharifan
- Department of the Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Hossein Bakhoda
- Department of Agricultural Mechanization, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Ota S, Tanaka Y, Yasutake R, Ikeda Y, Yuki R, Nakayama Y, Saito Y. Distinct effects of heat shock temperatures on mitotic progression by influencing the spindle assembly checkpoint. Exp Cell Res 2023; 429:113672. [PMID: 37339729 DOI: 10.1016/j.yexcr.2023.113672] [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: 01/06/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 06/22/2023]
Abstract
Heat shock is a physiological and environmental stress that leads to the denaturation and inactivation of cellular proteins and is used in hyperthermia cancer therapy. Previously, we revealed that mild heat shock (42 °C) delays the mitotic progression by activating the spindle assembly checkpoint (SAC). However, it is unclear whether SAC activation is maintained at higher temperatures than 42 °C. Here, we demonstrated that a high temperature of 44 °C just before mitotic entry led to a prolonged mitotic delay in the early phase, which was shortened by the SAC inhibitor, AZ3146, indicating SAC activation. Interestingly, mitotic slippage was observed at 44 °C after a prolonged delay but not at 42 °C heat shock. Furthermore, the multinuclear cells were generated by mitotic slippage in 44 °C-treated cells. Immunofluorescence analysis revealed that heat shock at 44 °C reduces the kinetochore localization of MAD2, which is essential for mitotic checkpoint activation, in nocodazole-arrested mitotic cells. These results indicate that 44 °C heat shock causes SAC inactivation even after full activation of SAC and suggest that decreased localization of MAD2 at the kinetochore is involved in heat shock-induced mitotic slippage, resulting in multinucleation. Since mitotic slippage causes drug resistance and chromosomal instability, we propose that there may be a risk of cancer malignancy when the cells are exposed to high temperatures.
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Affiliation(s)
- Saki Ota
- Department of Biochemistry & Molecular Biology, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yui Tanaka
- Department of Biochemistry & Molecular Biology, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Ryuji Yasutake
- Department of Biochemistry & Molecular Biology, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yuki Ikeda
- Department of Biochemistry & Molecular Biology, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Ryuzaburo Yuki
- Department of Biochemistry & Molecular Biology, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yuji Nakayama
- Department of Biochemistry & Molecular Biology, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Youhei Saito
- Department of Biochemistry & Molecular Biology, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan.
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Tougeron K, Iltis C, Rampnoux E, Goerlinger A, Dhondt L, Hance T. Still standing: The heat protection delivered by a facultative symbiont to its aphid host is resilient to repeated thermal stress. Curr Res Insect Sci 2023; 3:100061. [PMID: 37304568 PMCID: PMC10250925 DOI: 10.1016/j.cris.2023.100061] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 04/05/2023] [Accepted: 05/29/2023] [Indexed: 06/13/2023]
Abstract
Insects have evolved diverse strategies to resist extreme high temperatures (EHT). The adaptive value of such strategies has to be evaluated when organisms experience multiple EHT events during their lifetime, as predicted in a changing climate. This is particularly the case for associations with facultative microbial partners involved in insect heat tolerance, the resilience of which to repeated heat stress has never been studied. We compared two artificial lines of the pea aphid (Acyrthosiphon pisum) differing by the absence or presence of the heat-protective facultative bacterium Serratia symbiotica. We exposed insect nymphs to a varying number of EHT events (between 0 and 3), and recorded fitness parameters. Except survival traits, fitness estimates were affected by the interaction between aphid infection status (absence/presence of S. symbiotica) and thermal treatment (number of heat shocks applied). Costs of bacterial infection were detected in the absence of thermal stress: symbiont-hosting aphids incurred longer development, decreased fecundity and body size. However, symbiotic infection turned neutral, and even beneficial for some traits (development and body size), as the number of heat shocks increased, and compared to the aposymbiotic strain. Conversely, symbiotic infection mediated aphid response to heat shock(s): fitness decreased only in the uninfected group. These findings suggest that (i) the facultative symbiont may alternatively act as a pathogen, commensal or mutualist depending on thermal environment, and (ii) the heat protection it delivered to its host persists under frequent EHT. We discuss eco-evolutionary implications and the role of potentially confounding factors (stage-specific effects, genetic polymorphism displayed by the obligate symbiont).
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Affiliation(s)
- Kévin Tougeron
- Earth and Life Institute, Ecology and Biodiversity, Université catholique de Louvain, Croix du Sud 4-5, 1348 Louvain-la-Neuve, Belgium
- Institut de Recherche en Biosciences, Université de Mons, Av. du Champ de Mars 6, 7000 Mons, Belgium
| | - Corentin Iltis
- Earth and Life Institute, Ecology and Biodiversity, Université catholique de Louvain, Croix du Sud 4-5, 1348 Louvain-la-Neuve, Belgium
| | - Eliott Rampnoux
- Earth and Life Institute, Ecology and Biodiversity, Université catholique de Louvain, Croix du Sud 4-5, 1348 Louvain-la-Neuve, Belgium
| | - Alexandre Goerlinger
- Earth and Life Institute, Ecology and Biodiversity, Université catholique de Louvain, Croix du Sud 4-5, 1348 Louvain-la-Neuve, Belgium
| | - Linda Dhondt
- Earth and Life Institute, Ecology and Biodiversity, Université catholique de Louvain, Croix du Sud 4-5, 1348 Louvain-la-Neuve, Belgium
| | - Thierry Hance
- Earth and Life Institute, Ecology and Biodiversity, Université catholique de Louvain, Croix du Sud 4-5, 1348 Louvain-la-Neuve, Belgium
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Park JH, Lee ES, Jung YJ. Functional characterization of the DNA-binding protein from starved cells (DPS) as a molecular chaperone under heat stress. Biochem Biophys Res Commun 2023; 667:180-185. [PMID: 37229826 DOI: 10.1016/j.bbrc.2023.05.064] [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: 05/01/2023] [Accepted: 05/18/2023] [Indexed: 05/27/2023]
Abstract
The DNA-binding protein from starved cells, known as DPS, has been characterized as a crucial factor in protecting E. coli from external stresses. The DPS functions in various cellular processes, including protein-DNA binding, ferroxidase activity, compaction of chromosome and regulation of stress resistance gene expression. DPS proteins exist as oligomeric complexes; however, the specific biochemical activity of oligomeric DPS in conferring heat shock tolerance has not been fully understood. Therefore, we investigated the novel functional role of DPS under heat shock. To elucidate the functional role of DPS under heat shock conditions, we purified recombinant GST-DPS protein and demonstrated its thermostability and existence in its highly oligomeric form. Furthermore, we discovered that the hydrophobic region of GST-DPS influenced the formation of oligomers, which exhibited molecular chaperone activity, thereby preventing the aggregation of substrate proteins. Collectively, our findings highlight the novel functional role of DPS, as a molecular chaperone and may confer thermotolerance to E. coli.
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Affiliation(s)
- Joung Hun Park
- Division of Ecological Safety, National Institute of Ecology, Seocheon, Republic of Korea
| | - Eun Seon Lee
- Division of Ecological Safety, National Institute of Ecology, Seocheon, Republic of Korea
| | - Young Jun Jung
- Division of Ecological Safety, National Institute of Ecology, Seocheon, Republic of Korea.
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21
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Ge S, Wang R, Yang L, Kong H, Chang X, Fu X, Shan Y, Ding S. Transcriptomics and gas chromatography-mass spectrometry metabolomics reveal the mechanism of heat shock combined with 1-methylcyclopropene to regulate the cuticle wax of jujube fruit during storage. Food Chem 2023; 408:135187. [PMID: 36527923 DOI: 10.1016/j.foodchem.2022.135187] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/27/2022] [Revised: 11/20/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
Cuticle wax is closely related to fruit quality during storage. In this study, changes in epidermal wax morphology, composition, and genes regulation induced by heat shock (HT), 1-methylcyclopropene (1-MCP) or their combination (HT + 1-MCP) were investigated in jujube fruit during cold storage. HT, 1-MCP, or HT + 1-MCP caused a smoother wax layer and fewer micro-cracks compared to the control (CK) during cold storage. It was confirmed that acids and terpenoids were the main wax components by gas chromatography-mass spectrometry. HT + 1-MCP and 1-MCP treatments could significantly increase (p < 0.05) the wax content at 45 d of cold storage. The transcriptomics results indicated that HT + 1-MCP treatment up-regulated FATB, FATB, FAB2, FAD2 and CYP716A, and maintained the wax content of jujube fruit during cold storage. These results could provide new perspective for regulating the cuticle characteristics to extend the shelf life of jujube fruit.
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Affiliation(s)
- Shuai Ge
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Rongrong Wang
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Lvzhu Yang
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Hui Kong
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Xia Chang
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Xincheng Fu
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Yang Shan
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Province International Joint Lab on Fruits & Vegetables Processing, Quality and Safety, Changsha 410125, China
| | - Shenghua Ding
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China; Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Hunan Province International Joint Lab on Fruits & Vegetables Processing, Quality and Safety, Changsha 410125, China.
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22
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Gutiérrez-Escobedo G, Vázquez-Franco N, López-Marmolejo A, Luna-Arvizu G, Cañas-Villamar I, Castaño I, De Las Peñas A. Characterization of the Trr/Trx system in the fungal pathogen Candida glabrata. Fungal Genet Biol 2023; 166:103799. [PMID: 37105080 DOI: 10.1016/j.fgb.2023.103799] [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: 02/22/2023] [Revised: 04/07/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023]
Abstract
C. glabrata, an opportunistic fungal pathogen, can adapt and resist to different stress conditions. It is highly resistant to oxidant stress compared to other Candida spp and to the phylogenetically related but non-pathogen Saccharomyces cerevisiae. In this work, we describe the Trx/Trr system of C. glabrata composed of Trr1 and Trr2 (thioredoxin reductases) and Trx2 (thioredoxin) that are localized in the cytoplasm and Trx3 present in the mitochondrion. The transcriptional induction of TRR2 and TRX2 by oxidants depends on Yap1 and Skn7 and TRR1 and TRX3 have a low expression level. Both TRR2 and TRX2 play an important role in the oxidative stress response. The absence of TRX2 causes auxotrophy of methionine and cysteine. Trr1 and Trr2 are necessary for survival at high temperatures and for the chronological life span of C. glabrata. Furthermore, the Trx/Trr system is needed for survival in the presence of neutrophils. The role of TRR1 and TRX3 is not clear, but in the presence of neutrophils, they have non-overlapping functions with their TRR2 and TRX2 paralogues.
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Affiliation(s)
- Guadalupe Gutiérrez-Escobedo
- IPICYT, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José, #2055, Col. Lomas 4ª Sección, San Luis Potosí 78216, Mexico
| | - Norma Vázquez-Franco
- Unit for Basic and Applied Microbiology, School of Natural Sciences, Universidad Autónoma de Querétaro, Querétaro, Mexico
| | - Ana López-Marmolejo
- IPICYT, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José, #2055, Col. Lomas 4ª Sección, San Luis Potosí 78216, Mexico
| | - Gabriel Luna-Arvizu
- Department of Biology, Institute of Molecular Biology, University of Oregon, Eugene, OR, USA
| | - Israel Cañas-Villamar
- IPICYT, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José, #2055, Col. Lomas 4ª Sección, San Luis Potosí 78216, Mexico
| | - Irene Castaño
- IPICYT, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José, #2055, Col. Lomas 4ª Sección, San Luis Potosí 78216, Mexico
| | - Alejandro De Las Peñas
- IPICYT, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José, #2055, Col. Lomas 4ª Sección, San Luis Potosí 78216, Mexico.
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23
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Moon S, Ham S, Jeong J, Ku H, Kim H, Lee C. Temperature Matters: Bacterial Response to Temperature Change. J Microbiol 2023; 61:343-357. [PMID: 37010795 DOI: 10.1007/s12275-023-00031-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 04/04/2023]
Abstract
Temperature is one of the most important factors in all living organisms for survival. Being a unicellular organism, bacterium requires sensitive sensing and defense mechanisms to tolerate changes in temperature. During a temperature shift, the structure and composition of various cellular molecules including nucleic acids, proteins, and membranes are affected. In addition, numerous genes are induced during heat or cold shocks to overcome the cellular stresses, which are known as heat- and cold-shock proteins. In this review, we describe the cellular phenomena that occur with temperature change and bacterial responses from a molecular perspective, mainly in Escherichia coli.
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Affiliation(s)
- Seongjoon Moon
- Department of Biological Sciences, Ajou University, Suwon, 16499, Republic of Korea
| | - Soojeong Ham
- Department of Biological Sciences, Ajou University, Suwon, 16499, Republic of Korea
| | - Juwon Jeong
- Department of Biological Sciences, Ajou University, Suwon, 16499, Republic of Korea
| | - Heechan Ku
- Department of Biological Sciences, Ajou University, Suwon, 16499, Republic of Korea
| | - Hyunhee Kim
- Department of Biological Sciences, Ajou University, Suwon, 16499, Republic of Korea.
| | - Changhan Lee
- Department of Biological Sciences, Ajou University, Suwon, 16499, Republic of Korea.
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Escudero-Duch C, Muñoz-Moreno L, Martin-Saavedra F, Sanchez-Casanova S, Lerma-Juarez MA, Vilaboa N. Remote control of transgene expression using noninvasive near-infrared irradiation. J Photochem Photobiol B 2023; 242:112697. [PMID: 36963296 DOI: 10.1016/j.jphotobiol.2023.112697] [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] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/26/2023]
Abstract
This study investigated whether noninvasive near-infrared (NIR) energy could be transduced into heat in deep-seated organs in which adenovirus type-5 vectors tend to accumulate, thereby activating heat shock protein (HSP) promoter-mediated transgene expression, without local administration of photothermal agents. NIR irradiation of the subdiaphragmatic and left dorsocranial part of the abdominal cavity of adult immunocompetent C3H/HeNRj mice with an 808-nm laser effectively increased the temperature of the irradiated regions of the liver and spleen, respectively, resulting in the accumulation of the heat-inducible HSP70 protein. Spatial control of transgene expression was achieved in the NIR-irradiated regions of the mice administered an adenoviral vector carrying a firefly luciferase (fLuc) coding sequence controlled by a human HSP70B promoter, as assessed by bioluminescence and immunohistochemistry analyses. Levels of reporter gene expression were modulated by controlling NIR power density. Spatial control of transgene expression through NIR-focused activation of the HSP70B promoter, as well as temporal regulation by administering rapamycin was achieved in the spleens of mice inoculated with an adenoviral vector encoding a rapamycin-dependent transactivator driven by the HSP70B promoter and an adenoviral vector carrying a fLuc coding sequence controlled by the rapamycin-activated transactivator. Mice that were administered rapamycin and exposed to NIR light expressed fLuc activity in the splenic region, whereas no activity was detected in mice that were only administered rapamycin or vehicle or only NIR-irradiated. Thus, in the absence of any exogenously supplied photothermal material, remote control of heat-induced transgene expression can be achieved in the liver and spleen by means of noninvasive NIR irradiation.
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Affiliation(s)
- Clara Escudero-Duch
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Laura Muñoz-Moreno
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Francisco Martin-Saavedra
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Silvia Sanchez-Casanova
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Miguel Angel Lerma-Juarez
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Nuria Vilaboa
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain.
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25
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Fomin V, Bazhenov S, Kononchuk O, Matveeva V, Zarubina A, Spiridonov S, Manukhov I. Photorhabdus lux-operon heat shock-like regulation. Heliyon 2023; 9:e14527. [PMID: 36950606 PMCID: PMC10025913 DOI: 10.1016/j.heliyon.2023.e14527] [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: 08/02/2022] [Revised: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 03/13/2023] Open
Abstract
For decades, transcription of Photorhabdus luminescens lux-operon was considered being constitutive. Therefore, this lux-operon has been used for measurements in non-specific bacterial luminescent biosensors. Here, the expression of Photorhabdus lux-operon under high temperature was studied. The expression was researched in the natural strain Photorhabdus temperata and in the heterologous system of Escherichia coli. P. temperata FV2201 bacterium was isolated from soil in the Moscow region (growth optimum 28 °C). We showed that its luminescence significantly increases when the temperature rises to 34 °C. The increase in luminescence is associated with an increase in the transcription of luxCDABE genes, which was confirmed by RT-PCR. The promoter of the lux-operon of the related bacterium P. luminescens ZM1 from the forests of Moldova, being cloned in the heterologous system of E. coli, is activated when the temperature rises from room temperature to 42 °C. When heat shock is caused by ethanol addition, transcription of lux-operon increases only in the natural strain of P. temperata, but not in the heterologous system of E. coli cells. In addition, the activation of the lux-operon of P. luminescens persists in E. coli strains deficient in both the rpoH and rpoE genes. These results indicate the presence of sigma 32 and sigma 24 independent heat-shock-like mechanism of regulation of the lux-operon of P. luminescens in the heterologous E. coli system.
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Affiliation(s)
- V.V. Fomin
- Laboratory of Molecular Genetics, Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, Moscow Region, 141700, Russian Federation
- Laboratory of Microbiology, BIOTECH University, Volokolamskoe Highway 11, Moscow 125080, Russian Federation
| | - S.V. Bazhenov
- Laboratory of Molecular Genetics, Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, Moscow Region, 141700, Russian Federation
| | - O.V. Kononchuk
- Laboratory of Molecular Genetics, Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, Moscow Region, 141700, Russian Federation
- Laboratory of Microbiology, BIOTECH University, Volokolamskoe Highway 11, Moscow 125080, Russian Federation
| | - V.O. Matveeva
- Laboratory of Molecular Genetics, Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, Moscow Region, 141700, Russian Federation
| | - A.P. Zarubina
- Biological Faculty, Lomonosov Moscow State University, Vorob’evy Gory, Moscow, 119992, Russian Federation
| | - S.E. Spiridonov
- Centre of Parasitology, A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii Prospect, 33, Moscow, 119071, Russian Federation
| | - I.V. Manukhov
- Laboratory of Molecular Genetics, Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny, Moscow Region, 141700, Russian Federation
- Corresponding author.
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26
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Virtanen L, Holm E, Halme M, West G, Lindholm F, Gullmets J, Irjala J, Heliö T, Padzik A, Meinander A, Eriksson JE, Taimen P. Lamin A/C phosphorylation at serine 22 is a conserved heat shock response to regulate nuclear adaptation during stress. J Cell Sci 2023; 136:289469. [PMID: 36695453 PMCID: PMC10022683 DOI: 10.1242/jcs.259788] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 01/19/2022] [Accepted: 01/16/2023] [Indexed: 01/26/2023] Open
Abstract
The heat shock (HS) response is crucial for cell survival in harmful environments. Nuclear lamin A/C, encoded by the LMNA gene, contributes towards altered gene expression during HS, but the underlying mechanisms are poorly understood. Here, we show that upon HS, lamin A/C was reversibly phosphorylated at serine 22 in concert with HSF1 activation in human cells, mouse cells and Drosophila melanogaster in vivo. Consequently, the phosphorylation facilitated nucleoplasmic localization of lamin A/C and nuclear sphericity in response to HS. Interestingly, lamin A/C knock-out cells showed deformed nuclei after HS and were rescued by ectopic expression of wild-type lamin A, but not by a phosphomimetic (S22D) lamin A mutant. Furthermore, HS triggered concurrent downregulation of lamina-associated protein 2α (Lap2α, encoded by TMPO) in wild-type lamin A/C-expressing cells, but a similar response was perturbed in lamin A/C knock-out cells and in LMNA mutant patient fibroblasts, which showed impaired cell cycle arrest under HS and compromised survival at recovery. Taken together, our results suggest that the altered phosphorylation stoichiometry of lamin A/C provides an evolutionarily conserved mechanism to regulate lamina structure and serve nuclear adaptation and cell survival during HS.
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Affiliation(s)
- Laura Virtanen
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku, 20520 Turku, Finland
| | - Emilia Holm
- Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland
| | - Mona Halme
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku, 20520 Turku, Finland
| | - Gun West
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku, 20520 Turku, Finland
| | - Fanny Lindholm
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku, 20520 Turku, Finland
| | - Josef Gullmets
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku, 20520 Turku, Finland.,Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland
| | - Juho Irjala
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku, 20520 Turku, Finland
| | - Tiina Heliö
- Heart and Lung Center, Helsinki University Hospital and University of Helsinki, 00029 Helsinki, Finland
| | - Artur Padzik
- Genome Editing Core, Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Annika Meinander
- Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland
| | - John E Eriksson
- Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland.,Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Pekka Taimen
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku, 20520 Turku, Finland.,Department of Pathology, Turku University Hospital, 20520 Turku, Finland
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27
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Sosa F, Hansen PJ. Colony stimulating factor 2 protects the preimplantation bovine embryo from heat shock. ZYGOTE 2023; 31:51-54. [PMID: 36278319 PMCID: PMC10565675 DOI: 10.1017/s0967199422000508] [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] [Indexed: 01/28/2023]
Abstract
Heat stress can have severe deleterious effects on embryo development and survival. The present study evaluated whether CSF2 can protect the developmental competence of the bovine embryo following exposure to a heat shock of 41°C at the zygote and morula stages. In the first experiment, putative zygotes and 2-cell embryos were assigned to receive either 10 ng/ml CSF2 or vehicle, and then cultured for 15 h at either 38.5°C or 41°C and then at 38.5°C until day 7.5. Heat shock reduced blastocyst development for embryos treated with vehicle but not for embryos cultured with CSF2. In the second experiment, day 5 embryos (morula) were treated with CSF2 or vehicle and then cultured for 15 h at either 38.5°C or 41°C and then at 38.5°C until day 7.5. Temperature treatment did not affect development to the blastocyst stage and there was no effect of CSF2 treatment or the interaction. Results indicate that CSF2 can reduce the deleterious effects of heat shock at the zygote or two-cell stage when the embryo is transcriptionally inactive.
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Affiliation(s)
- Froylan Sosa
- Department of Animal Sciences, D.H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville, Florida32611-0910, USA
| | - Peter J Hansen
- Department of Animal Sciences, D.H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville, Florida32611-0910, USA
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28
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Lima A, Didugu BGL, Chunduri AR, Rajan R, Jha A, Mamillapalli A. Thermal tolerance role of novel polyamine, caldopentamine, identified in fifth instar Bombyx mori. Amino Acids 2023; 55:287-298. [PMID: 36562834 DOI: 10.1007/s00726-022-03226-5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
Silkworms have limited ability to regulate their body temperature; therefore, environmental changes, such as global warming, can adversely affect their viability. Polyamines have shown protection to various organisms against heat stress. This study evaluated the qualitative and quantitative changes in heat-stressed Bombyx mori larvae polyamines. Fifth instar Bombyx mori larvae were divided into two groups; control group, reared at room temperature, i.e., 28 ± 2 °C, and the heat shock group, exposed to 40 °C. Dansylation of the whole worm polyamines and subsequent thin-layer chromatography revealed the presence of components with the same Rf value as dansyl-putrescine, spermidine, and spermine. The dansyl-putrescine, spermidine, and spermine polyamines were identified by mass spectrometric analyses. After heat shock, the thin-layer chromatography of the whole-larvae tissue extracts showed qualitative and quantitative changes in dansylated polyamines. A new polyamine, caldopentamine, was identified, which showed elevated levels in heat-stressed larvae. This polyamine could play a role in helping the larvae tolerate various stress, including thermal stress. No significant changes in silk fiber's economic and mechanical properties were observed in our study. This study indicated that PA, caldopentamine, supplementation could improve heat-stress tolerance in Bombyx mori.
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Affiliation(s)
- Anugata Lima
- Department of Biotechnology, School of Science, GITAM (Deemed to Be University), Visakhapatnam, Andhra Pradesh, 530045, India
| | - Brinda Goda Lakshmi Didugu
- Department of Biotechnology, School of Science, GITAM (Deemed to Be University), Visakhapatnam, Andhra Pradesh, 530045, India
| | - Alekhya Rani Chunduri
- Department of Biotechnology, School of Science, GITAM (Deemed to Be University), Visakhapatnam, Andhra Pradesh, 530045, India
| | - Resma Rajan
- Department of Biotechnology, School of Science, GITAM (Deemed to Be University), Visakhapatnam, Andhra Pradesh, 530045, India
| | - Anjali Jha
- Department of Chemistry, School of Science, GITAM (Deemed to Be University), Visakhapatnam, Andhra Pradesh, 530045, India
| | - Anitha Mamillapalli
- Department of Biotechnology, School of Science, GITAM (Deemed to Be University), Visakhapatnam, Andhra Pradesh, 530045, India.
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29
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Schwarz K, Baindur-Hudson S, Blatch GL, Edkins AL. Hsp70/Hsp90 Organising Protein (Hop): Coordinating Much More than Chaperones. Subcell Biochem 2023; 101:81-125. [PMID: 36520304 DOI: 10.1007/978-3-031-14740-1_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The Hsp70/Hsp90 organising protein (Hop, also known as stress-inducible protein 1/STI1/STIP1) has received considerable attention for diverse cellular functions in both healthy and diseased states. There is extensive evidence that intracellular Hop is a co-chaperone of the major chaperones Hsp70 and Hsp90, playing an important role in the productive folding of Hsp90 client proteins, although recent evidence suggests that eukaryotic Hop is regulatory within chaperone complexes rather than essential. Consequently, Hop is implicated in many key signalling pathways, including aberrant pathways leading to cancer. Hop is also secreted, and it is now well established that Hop interacts with the prion protein, PrPC, to mediate multiple signalling events. The intracellular and extracellular forms of Hop most likely represent two different isoforms, although the molecular determinants of these divergent functions are yet to be identified. There is also a growing body of research that reports the involvement of Hop in cellular activities that appear independent of either chaperones or PrPC. While the various cellular functions of Hop have been described, its biological function remains elusive. However, recent knockout studies in mammals suggest that Hop has an important role in embryonic development. This review provides a critical overview of the latest molecular, cellular and biological research on Hop, critically evaluating its function in healthy systems and how this function is adapted in diseased states.
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30
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Huber CC, Callegari EA, Paez MD, Romanova S, Wang H. Heat Shock-Induced Extracellular Vesicles Derived from Neural Stem Cells Confer Marked Neuroprotection Against Oxidative Stress and Amyloid-β-Caused Neurotoxicity. Mol Neurobiol 2022; 59:7404-7412. [PMID: 36190693 PMCID: PMC10088367 DOI: 10.1007/s12035-022-03055-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 06/13/2022] [Accepted: 09/22/2022] [Indexed: 11/30/2022]
Abstract
Alzheimer's disease (AD) is the most prevalent neurodegenerative disease and a leading cause of dementia. Although the amyloid-β (Aβ) peptide is deemed a crucial driver of AD, there are no effective therapeutics available to treat Aβ-caused neurotoxicity. Extracellular vesicles (EVs) are membrane-bound small particles mediating intercellular traffic of nucleic acids, lipids, proteins, and metabolites. Exosomes are a subtype of EVs with a size range of 30-150 nm in diameter. Stem cell-derived EVs are a potential therapeutic for AD, while EVs isolated from normal stem cell cultures generally have a low yield. Here, we studied the EVs secreted by the rat neural stem cells in the presence of heat shock (HS) stimulus. Nanoparticle tracking analysis confirmed that HS-derived EVs exhibit significantly higher concentration and larger diameter in comparison to the non-heat shock (NHS)-derived EVs. Mass spectrometric studies of EV proteins revealed that HS-derived EVs contained fewer diverse proteins than NHS-derived exosomes. GO enrichment analysis of the proteins suggested that the top two biological functions of the proteins in HS-derived EVs are involved in the negative regulation of apoptotic process and positive modulation of DNA repair. Importantly, the therapeutic efficacy of the NHS- and HS-derived EVs were tested in a cell culture model of AD: HS-derived EVs exhibited greater neuroprotection against not only oxidative stress but also amyloid-β (Aβ) induced neurotoxicity compared to NHS-derived EVs. Moreover, HS-derived EVs were also able to dramatically attenuate Aβ-induced apoptosis and oxidative stress. These data indicate that in response to HS, neural stem cells increase EV production and alter EV morphology and cargo to confer better neuroprotection against oxidative stress and Aβ-caused neurotoxicity, suggesting that HS-induced EVs from neural stem cells can be a therapeutic agent for AD and possibly other neurological disorders.
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Affiliation(s)
- Christa C Huber
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA
| | - Eduardo A Callegari
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA
| | - Maria D Paez
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA
| | - Svetlana Romanova
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, 68106, USA
| | - Hongmin Wang
- Division of Basic Biomedical Sciences and Center for Brain and Behavior Research, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA.
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Habibi P, Ostad SN, Heydari A, Aliebrahimi S, Montazeri V, Foroushani AR, Monazzam MR, Ghazi-Khansari M, Golbabaei F. Effect of heat stress on DNA damage: a systematic literature review. Int J Biometeorol 2022; 66:2147-2158. [PMID: 36178536 DOI: 10.1007/s00484-022-02351-w] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/27/2022] [Accepted: 08/16/2022] [Indexed: 06/16/2023]
Abstract
Thermal stress has a direct effect on various types of DNA damage, which depends on the stage of the cell cycle when the cell is exposed to different climate conditions. A literature review was conducted to systematically investigate and assess the overall effect of heat stress and DNA damage following heat exposure. In this study, electronic databases including PubMed, Scopus, and Web of Science were searched to find relevant literature on DNA damage in different ambient temperatures. Outcomes included (1) measurement of DNA damage in heat exposure, (2) three different quantification methods (comet assay, 8-hydroxy-2-deoxyguanosine (8-OHdG), and γ-H2AX), and (3) protocols used for moderate (31) and high temperatures (42). The evidence shows that long exposure and very high temperature can induce an increase in DNA damage through aggregate in natural proteins, ROS generation, cell death, and reproductive damage in hot-humid and hot-dry climate conditions. A substantial increase in DNA damage occurs following acute heat stress exposure, especially in tropical and subtropical climate conditions. The results of this systematic literature review showed a positive association between thermal stress exposure and inhibition of repair of DNA damage.
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Affiliation(s)
- Peymaneh Habibi
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Naser Ostad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahad Heydari
- Department of Health in Disaster and Emergencies, School of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Shima Aliebrahimi
- Artificial Intelligence Department, Smart University of Medical Sciences, Tehran, Iran
| | - Vahideh Montazeri
- Artificial Intelligence Department, Smart University of Medical Sciences, Tehran, Iran
| | - Abbas Rahimi Foroushani
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Monazzam
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Ghazi-Khansari
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Golbabaei
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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32
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Bychkov IA, Andreeva AA, Kudryakova NV, Pojidaeva ES, Kusnetsov VV. The role of PAP4/FSD3 and PAP9/FSD2 in heat stress responses of chloroplast genes. Plant Sci 2022; 322:111359. [PMID: 35738478 DOI: 10.1016/j.plantsci.2022.111359] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/01/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Chloroplasts' mechanisms of adaptation to elevated temperatures are largely determined by the gene expression of the plastid transcription apparatus. Gene disruption of iron-containing superoxide dismutase PAP4/FSD3 and PAP9/FSD2, which are parts of the DNA-RNA polymerase complex of plastids, contributed to a decrease in resistance to oxidative stress caused by the prolonged action of elevated temperatures (5 days, 30 °C). Under heat stress conditions, pap4/fsd3 and pap9/fsd2 mutants showed a decline in chlorophyll content and photosynthesis level, as measured by photosynthetic parameters, and a different amplitude of HSP gene response to heat stress. The expression of nuclear- and plastid-encoded photosynthesis genes and corresponding proteins was strongly inhibited in the mutants as compared with wild-type plants and was further suppressed or displayed no additional changes at 30 °C. NEP-dependent plastid genes, as well as NEP genes RPOTp and RPOTmp, were also downregulated in the mutants by high temperature or remained stable, unlike in wild-type seedlings where these genes were strongly upregulated. The results obtained correspond to the concept of the complex effect of various forms of reactive oxygen species under all types of stresses, including heat stress, and confirm the hypothesis of a new regulatory function in plastid transcription acquired by enzymatic proteins during evolution.
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Affiliation(s)
- Ivan A Bychkov
- К.А. Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., Moscow 127276, Russia
| | - Aleksandra A Andreeva
- К.А. Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., Moscow 127276, Russia
| | - Natalia V Kudryakova
- К.А. Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., Moscow 127276, Russia.
| | - Elena S Pojidaeva
- К.А. Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., Moscow 127276, Russia
| | - Victor V Kusnetsov
- К.А. Timiryazev Institute of Plant Physiology RAS, 35 Botanicheskaya St., Moscow 127276, Russia
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Masroor S, Aalam MT, Khan O, Tanuj GN, Gandham RK, Dhara SK, Gupta PK, Mishra BP, Dutt T, Singh G, Sajjanar BK. Effect of acute heat shock on stress gene expression and DNA methylation in zebu (Bos indicus) and crossbred (Bos indicus × Bos taurus) dairy cattle. Int J Biometeorol 2022; 66:1797-1809. [PMID: 35796826 DOI: 10.1007/s00484-022-02320-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 01/21/2022] [Revised: 05/15/2022] [Accepted: 06/21/2022] [Indexed: 05/19/2023]
Abstract
Environmental temperature is one of the major factors to affect health and productivity of dairy cattle. Gene expression networks within the cells and tissues coordinate stress response, metabolism, and milk production in dairy cattle. Epigenetic DNA methylations were found to mediate the effect of environment by regulating gene expression patterns. In the present study, we compared three Indian native zebu cattle, Bos indicus (Sahiwal, Tharparkar, and Hariana) and one crossbred Bos indicus × Bos taurus (Vrindavani) for stress gene expression and differences in the DNA methylation patterns. The results indicated acute heat shock to cultured PBMC affected their proliferation, stress gene expression, and DNA methylation. Interestingly, expressions of HSP70, HSP90, and STIP1 were found more pronounced in zebu cattle than the crossbred cattle. However, no significant changes were observed in global DNA methylation due to acute heat shock, even though variations were observed in the expression patterns of DNA methyltransferases (DNMT1, DNMT3a) and demethylases (TET1, TET2, and TET3) genes. The treatment 5-AzaC (5-azacitidine) that inhibit DNA methylation in proliferating PBMC caused significant increase in heat shock-induced HSP70 and STIP1 expression indicating that hypomethylation facilitated stress gene expression. Further targeted analysis DNA methylation in the promoter regions revealed no significant differences for HSP70, HSP90, and STIP1. However, there was a significant hypomethylation for BDNF in both zebu and crossbred cattle. Similarly, NR3C1 promoter region showed hypomethylation alone in crossbred cattle. Overall, the results indicated that tropically adapted zebu cattle had comparatively higher expression of stress genes than the crossbred cattle. Furthermore, DNA methylation may play a role in regulating expression of certain genes involved in stress response pathways.
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Affiliation(s)
- Sana Masroor
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Mohd Tanzeel Aalam
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Owais Khan
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Gunturu Narasimha Tanuj
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Ravi Kumar Gandham
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Sujoy K Dhara
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Praveen K Gupta
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Bishnu Prasad Mishra
- ICAR-National Bureau of Animal Genetic Resources, Haryana, Karnal, 132001, India
| | - Triveni Dutt
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India
| | - Gynendra Singh
- Physiology and Climatology Division, ICAR-Indian Veterinary Research Institute, Izatnagar Bareilly, 243122, Uttar Pradesh, India
| | - Basavaraj K Sajjanar
- Veterinary Biotechnology Division, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly-243122, Uttar Pradesh, India.
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Liu JF, Chen PC, Ling TY, Hou CH. Hyperthermia increases HSP production in human PDMCs by stimulating ROS formation, p38 MAPK and Akt signaling, and increasing HSF1 activity. Stem Cell Res Ther 2022; 13:236. [PMID: 35659731 PMCID: PMC9166587 DOI: 10.1186/s13287-022-02885-1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 02/02/2022] [Indexed: 11/29/2022] Open
Abstract
Background Human placenta-derived multipotent cells (hPDMCs) are isolated from a source uncomplicated by ethical issues and are ideal for therapeutic applications because of their capacity for multilineage differentiation and proven immunosuppressive properties. It is known that heat shock preconditioning induces the upregulation of heat shock proteins (HSPs), which enhance survival and engraftment of embryonic stem cells (ESCs) during transplantation in live animal models, although whether heat shock preconditioning has the same effects in hPDMCs is unclear. Methods The hPDMCs were isolated from placenta of healthy donors. The cells were treated with heat shock (43 °C, 15 min), followed by evaluation of cell viability. Furthermore, the HSPs expression was assessed by Western blot, qPCR. The reactive oxygen species (ROS) production and signal pathway activation were determined by flow cytometry and Western blot, respectively. The regulatory pathways involved in HSPs expression were examined by pretreatment with chemical inhibitors, and siRNAs of MAPK, Akt, and heat shock factor 1 (HSF1), followed by determination of HSPs expression. Results This study demonstrates that heat shock treatment induced ROS generation and HPSs expression in hPDMCs. Heat shock stimulation also increased p38 MAPK and Akt phosphorylation. These effects were reduced by inhibitors of ROS, p38 MAPK and Akt. Moreover, we found that heat shock treatment enhanced nuclear translocation of the HSF1 in hPDMCs, representing activation of HSF1. Pretreatment of hPDMCs with ROS scavengers, SB203580 and Akt inhibitors also reduced the translocation of HSF1 induced by heat shock. Conclusions Our data indicate that heat shock acts via ROS to activate p38 MAPK and Akt signaling, which subsequently activates HSF1, leading to HSP activation and contributing to the protective role of hPDMCs.
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Affiliation(s)
- Ju-Fang Liu
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei, 110, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404, Taiwan
| | - Po-Chun Chen
- Department of Life Science, National Taiwan Normal University, Taipei, 116, Taiwan.,Translational Medicine Center, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, 111, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404, Taiwan
| | - Thai-Yen Ling
- Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 106, Taiwan
| | - Chun-Han Hou
- Department of Orthopedic Surgery, National Taiwan University Hospital, No. 1, Jen-Ai Road, Taipei, 100, Taiwan.
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35
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Vasquez MC, Houston CT, Alcantar CY, Milshteyn L, Brazil CA, Zepeda OG. Interactive effects of multiple stressors on the physiological performance of the invasive mussel Mytilus galloprovincialis. Mar Environ Res 2022; 178:105665. [PMID: 35644077 DOI: 10.1016/j.marenvres.2022.105665] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/01/2021] [Revised: 05/17/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
The invasive mussel Mytilus galloprovincialis is a heat-tolerant species relative to its competative congener M. trossulus, that dominates warm seawater environments but it is unknown how multiple stressors (MS) may affect its physiology. Our study determined the effects of MS on the metabolic rate (MR), superoxide dismutase (SOD) antioxidant enzyme activity, and clearance rate (CR) of M. galloprovincialis. Mussels were exposed for 7 d to hyposalinity (20, 28, 34 ppt) then to heat shock (17, 20, 25 °C) after which MR and SOD activity were determined. CR was quantified following a 30 min MS exposure. We found a significant influence of MS on MR, SOD, and CR. We identified synergistic effects on MR under the most extreme treatment. SOD activity was the greatest under 20 °C exposure while CR declined under heat shock. Thus, our study suggests that mussels experiencing MS may become energy limited as MR increases and feeding rates decrease.
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Affiliation(s)
- M Christina Vasquez
- Biology Department, Loyola Marymount University, Los Angeles, CA, 90045, USA; Coastal Research Institute, Loyola Marymount University, Los Angeles, CA, 90045, USA.
| | - Clare T Houston
- Biology Department, Loyola Marymount University, Los Angeles, CA, 90045, USA
| | - Claribel Y Alcantar
- Biology Department, Loyola Marymount University, Los Angeles, CA, 90045, USA; Coastal Research Institute, Loyola Marymount University, Los Angeles, CA, 90045, USA
| | - Larry Milshteyn
- Biology Department, Loyola Marymount University, Los Angeles, CA, 90045, USA
| | - Camya A Brazil
- Biology Department, Loyola Marymount University, Los Angeles, CA, 90045, USA
| | - Osiris Guinea Zepeda
- Biology Department, Loyola Marymount University, Los Angeles, CA, 90045, USA; Coastal Research Institute, Loyola Marymount University, Los Angeles, CA, 90045, USA
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36
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Jiang Y, Yin H, Wang D, Zhong Y, Deng Y. Combination of chitosan coating and heat shock treatments to maintain postharvest quality and alleviate cracking of Akebia trifoliate fruit during cold storage. Food Chem 2022; 394:133330. [PMID: 35752120 DOI: 10.1016/j.foodchem.2022.133330] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/16/2022] [Accepted: 05/26/2022] [Indexed: 11/20/2022]
Abstract
Akebia trifoliata fruit cracks easily, which shortens the shelf life and declines commercial value. This work aimed to evaluate the effects of heat shock and coating treatments on postharvest quality of A. trifoliata fruit and to elucidate the mechanism underlying retarding cracking by cell wall metabolism. Coating could decline cracking incidence (from 16.05% to 3.61%), decay incidence (from 31.21% to 18.06%), total soluble solids (TSS), and malondialdehyde (MDA) content compared to uncoated treatment during 35 days of storage. Heat shock could further decrease decay incidence but did not influence TSS, pH, firmness, and starch. Heat shock at 40 °C combined with coating treatment had the best preservation performance with the highest synthetic score (4.41). Furthermore, coated fruit displayed lower β-glucosidase and polygalacturonase activities which resulted in higher cellulose and Na2CO3-soluble pectin. These modifications together with lower weight loss, MDA, and ion leakage contributed to the lower cracking incidence.
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Affiliation(s)
- Yongli Jiang
- Bor Luh Food Safety Center, Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Hao Yin
- Bor Luh Food Safety Center, Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Danfeng Wang
- Bor Luh Food Safety Center, Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yu Zhong
- Bor Luh Food Safety Center, Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yun Deng
- Bor Luh Food Safety Center, Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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37
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Reyes A, Navarro AJ, Diethelm-Varela B, Kalergis AM, González PA. Is there a role for HSF1 in viral infections? FEBS Open Bio 2022; 12:1112-1124. [PMID: 35485710 PMCID: PMC9157408 DOI: 10.1002/2211-5463.13419] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 11/15/2021] [Revised: 03/29/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022] Open
Abstract
Cells undergo numerous processes to adapt to new challenging conditions and stressors. Heat stress is regulated by a family of heat shock factors (HSFs) that initiate a heat shock response by upregulating the expression of heat shock proteins (HSPs) intended to counteract cellular damage elicited by increased environmental temperature. Heat shock factor 1 (HSF1) is known as the master regulator of the heat shock response and upon its activation induces the transcription of genes that encode for molecular chaperones, such as HSP40, HSP70, and HSP90. Importantly, an accumulating body of studies relates HSF1 with viral infections; the induction of fever during viral infection may activate HSF1 and trigger a consequent heat shock response. Here, we review the role of HSF1 in different viral infections and its impact on the health outcome for the host. Studying the relationship between HSF1 and viruses could open new potential therapeutic strategies given the availability of drugs that regulate the activation of this transcription factor.
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Affiliation(s)
- Antonia Reyes
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile
| | - Areli J Navarro
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile
| | - Benjamín Diethelm-Varela
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile.,Departamento de Endocrinología, Escuela de Medicina, Facultad de Medicina Pontificia, Universidad Católica de Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile
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Liu B, Kaurilind E, Zhang L, Okereke CN, Remmel T, Niinemets Ü. Improved plant heat shock resistance is introduced differently by heat and insect infestation: the role of volatile emission traits. Oecologia 2022; 199:53-68. [PMID: 35471619 DOI: 10.1007/s00442-022-05168-x] [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: 07/05/2021] [Accepted: 04/07/2022] [Indexed: 11/30/2022]
Abstract
Heat stress is one of the most important abiotic stresses confronted by plants under global climate change. Plant exposure to abiotic or biotic stress can improve its tolerance to subsequent severe episodes of the same or different stress (stress priming), but so far there is limited comparative information about how pre-exposures to different abiotic and biotic elicitors alter plant resistance to severe heat stress. We exposed the perennial herb Melilotus albus Medik., a species rich in secondary metabolites, to moderate heat stress (35 °C) and greenhouse whitefly (Trialeurodes vaporariorum West.) infestation to comparatively determine whether both pre-treatments could enhance plant tolerance to the subsequent heat shock (45 °C) stress. Plant physiological responses to stress were characterized by photosynthetic traits and volatile organic compound emissions through 72 h recovery. Heat shock treatment reduced net assimilation rate (A) and stomatal conductance in all plants, but heat-primed plants had significantly faster rates of recovery of A than other plants. By the end of the recovery period, A in none of the three heat shock-stressed groups recovered to the control level, but in whitefly-infested plants it reached the pre-heat shock level. In heat-primed plants, the heat shock treatment was associated with a fast rise of monoterpene emissions, and in whitefly-infested plants with benzenoid emissions and an increase in total phenolic content.
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Affiliation(s)
- Bin Liu
- Chair of Crop Science and Plant Biology, Estonian University of Life Sciences, Kreutzwaldi 5, 51006, Tartu, Estonia.
| | - Eve Kaurilind
- Chair of Crop Science and Plant Biology, Estonian University of Life Sciences, Kreutzwaldi 5, 51006, Tartu, Estonia
| | - Lu Zhang
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture and Forestry University, Hangzhou, 311300, China
| | - Chikodinaka N Okereke
- Chair of Crop Science and Plant Biology, Estonian University of Life Sciences, Kreutzwaldi 5, 51006, Tartu, Estonia
| | - Triinu Remmel
- Chair of Crop Science and Plant Biology, Estonian University of Life Sciences, Kreutzwaldi 5, 51006, Tartu, Estonia
| | - Ülo Niinemets
- Chair of Crop Science and Plant Biology, Estonian University of Life Sciences, Kreutzwaldi 5, 51006, Tartu, Estonia.,Estonian Academy of Sciences, Kohtu 6, 10130, Tallinn, Estonia
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39
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Song J, Austin JD, Yang H. Comparative Transcriptomics of the Northern Quahog Mercenaria mercenaria and Southern Quahog Mercenaria campechiensis in Response to Chronic Heat Stress. Mar Biotechnol (NY) 2022; 24:276-292. [PMID: 35357634 DOI: 10.1007/s10126-022-10101-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
The northern quahog (Mercenaria mercenaria) supports lucrative aquaculture industries in the USA. In the southeastern USA, aquacultured M. mercenaria faces increasing risks of summer die-offs from prolonged heat waves. We used a comparative transcriptomic approach to investigate the molecular responses of M. mercenaria and its southern congener, Mercenaria campechiensis, to controlled incremental heat stress over a 4-week period. Mercenaria were exposed to temperatures from 24 to 34 °C with 2.5 °C/week, after which, gill transcriptomes were de novo assembled and annotated. During the 4 weeks of chronic heat exposure, both species had the same survival rate (96%); M. mercenaria experienced body weight gain/loss depending on the originated hatcheries while M. campechiensis experienced an average net weight loss. The upregulated genes in both species included those in chaperone-mediated protein folding and regulation of cell death pathways, while the downregulated genes in both species involved in mRNA processing and splicing pathways. Compared to M. mercenaria, M. campechiensis appears to be more sensitive to prolonged heat stress as indicated by upregulating significantly more genes in coping with oxidative stress and in the protein degradation pathways, while downregulating some inhibitors of apoptosis. We discussed this finding within their ecological and evolutionary context. Our findings highlighted the potential vulnerability of the two quahogs, especially the southern quahog, to continued ocean warming.
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Affiliation(s)
- Jingwei Song
- School of Forest, Fisheries, and Geomatics Sciences, Institute of Food and Agricultural Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, USA
| | - James D Austin
- School of Forest, Fisheries, and Geomatics Sciences, Institute of Food and Agricultural Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, USA
- Department of Wildlife Ecology and Conservation, Institute of Food and Agricultural Sciences, University of Florida, 110 Newins Ziegler Hall, Gainesville, FL, 32611, USA
| | - Huiping Yang
- School of Forest, Fisheries, and Geomatics Sciences, Institute of Food and Agricultural Sciences, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32653, USA.
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40
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Liu C, Wang Y, Chen G, Yu D, Zhang X, Wang X, Tang Z, Xu A. A novel stable nitritation process: Treating sludge by alternating free nitrous acid/ heat shock. Bioresour Technol 2022; 347:126753. [PMID: 35081428 DOI: 10.1016/j.biortech.2022.126753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/01/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
The feasibility of stable nitritation of sludge alternately treated by free nitrous acid (FNA) and heat shock in a sequencing batch reactor (SBR) was investigated in this study. The linear regression method was used to determine the optimal treatment conditions. Results revealed that an FNA concentration of 2.20 mg HNO2-N/L, exposure time of 24 h, and treatment ratio of 20% could inhibit nitrite oxidizing bacteria (NOB) activity to the greatest extent while maintaining the maximum ammonium oxidizing bacteria (AOB) activity; after heat shock at 60 °C for 20 min, NOB were inhibited while AOB still had certain activity. In the long-term continuous-flow experiment, the single FNA or heat shock treatments easily allowed adapt NOB to affect the stability of nitritation. The alternating FNA/heat shock treatment can achieve long-term stability of nitritation. Microbial community analysis revealed that the alternating FNA/heat shock treatment could inhibit NOB while maintaining high AOB abundance.
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Affiliation(s)
- Chengju Liu
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Yanyan Wang
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Guanghui Chen
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, PR China.
| | - Deshuang Yu
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Xincheng Zhang
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Xueping Wang
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Zhihao Tang
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Ao Xu
- School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China
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Kanugovi Vijayavittal A, Kumar P, Sugunan S, Joseph C, Devaki B, Paithankar K, Amere Subbarao S. Heat shock transcription factor HSF2 modulates the autophagy response through the BTG2-SOD2 axis. Biochem Biophys Res Commun 2022; 600:44-50. [PMID: 35182974 DOI: 10.1016/j.bbrc.2022.02.018] [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: 12/08/2021] [Accepted: 02/06/2022] [Indexed: 11/02/2022]
Abstract
The heat shock transcription factor HSF1 regulates the inducible Hsp gene transcription, whereas HSF2 is involved in the constitutive transcription. HSFs can work for the non-heat shock genes transcription in a case-specific manner to facilitate normal cellular functions. Here, we demonstrate that HSF2 acts as an upstream regulator of heat shock-induced autophagy response in a rat histiocytoma. The heat-induced HSF2 transactivates the B-cell translocation gene-2 (BTG2) transcription, and the latter acts as a transcriptional coactivator for superoxide dismutase (SOD2). The altered HSF2 promoter occupancy on the BTG2 promoter enhances BTG2 transcription. Since SOD2 regulation is linked to mitochondrial redox sensing, HSF2 appears to act as a redox sensor in deciding the cell fate. The HSF2 shRNA or NFE2L2/BTG2 siRNA treatments have interfered with the autophagy response. We demonstrate that HSF2 is an upstream activator of autophagy response, and the HSF2-BTG2-SOD2 axis acts as a switch between the non-selective (micro/macro) and selective (chaperone-mediated) autophagy.
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Affiliation(s)
| | - Pankaj Kumar
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, Telangana, India
| | - Sreedevi Sugunan
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, Telangana, India
| | - Chitra Joseph
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, Telangana, India
| | - Bharath Devaki
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, Telangana, India
| | - Khanderao Paithankar
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, Telangana, India
| | - Sreedhar Amere Subbarao
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, Telangana, India.
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Rivi V, Batabyal A, Benatti C, Blom JM, Lukowiak K. Nature versus nurture in heat stress induced learning between inbred and outbred populations of Lymnaea stagnalis. J Therm Biol 2022; 103:103170. [PMID: 35027189 DOI: 10.1016/j.jtherbio.2021.103170] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 09/09/2021] [Revised: 12/03/2021] [Accepted: 12/16/2021] [Indexed: 12/31/2022]
Abstract
Changing environmental conditions often lead to microevolution of traits that are adaptive under the current selection pressure. Currently, one of the major selection pressures is the rise in temperatures globally that has a severe impact on the behavioral ecology of animals. However, the role of thermal stress on neuronal plasticity and memory formation is not well understood. Thermal tolerance and sensitivity to heat stress show variation across populations of the same species experiencing different thermal regimes. We used two populations of the pond snail Lymnaea stagnalis: one lab-bred W-snails and the other wild Delta snails to test heat shock induced learning and memory formation for the Garcia effect learning paradigm. In Garcia effect, a single pairing of a heat stressor (30 °C for 1h) with a novel taste results in a taste-specific negative hedonic shift lasting 24h as long-term memory (LTM) in lab bred W-snails. In this study we used a repeated heat stress procedure to test for increased or decreased sensitivity to the heat before testing for the Garcia effect. We found that lab-bred W-snails show increased sensitivity to heat stress after repeated heat exposure for 7days, leading to enhanced LTM for Garcia effect with only 15min of heat exposure instead of standard 1h. Surprisingly, the freshly collected wild snails do not show Garcia effect. Additionally, F1 generation of wild snails raised and maintained under laboratory conditions still retain their heat stress tolerance similar to their parents and do not show a Garcia effect under standard learning paradigm or even after repeated heat stressor. Thus, we found a differential effect of heat stress on memory formation in wild and lab bred snails. Most interestingly we also show that local environmental (temperature) conditions for one generation is not enough to alter thermal sensitivity in a wild population of L. stagnalis.
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Affiliation(s)
- Veronica Rivi
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; Department of Physiology and Pharmacology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - Anuradha Batabyal
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada.
| | - Cristina Benatti
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy; Centre of Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, Modena, Italy
| | - Johanna Mc Blom
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; Centre of Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, Modena, Italy
| | - Ken Lukowiak
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Alberta, Canada
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43
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Pumputis PG, Braley E, Hamilton ME, Dayeh VR, Lee LEJ, Bols NC. Integrity and wound healing of rainbow trout intestinal epithelial cell sheets at hypo-, normo-, and hyper-thermic temperatures. J Therm Biol 2022; 103:103147. [PMID: 35027200 DOI: 10.1016/j.jtherbio.2021.103147] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 11/18/2021] [Accepted: 11/29/2021] [Indexed: 11/23/2022]
Abstract
How temperature influences fish physiological systems, such as the intestinal barrier, is important for understanding and alleviating the impact of global warming on fish and aquaculture. Monolayers of the rainbow trout cell line, RTgutGC, with or without linear 500 μm wide gaps (wounds) were the in vitro models used to study the integrity and healing of intestinal epithelial sheets at different temperatures. Cultures at hypothermic (4 °C) or hyperthermic (≥ 26 °C) temperatures were compared to normothermic control cultures (18-22 °C). Monolayers remained intact for at least a week at temperatures from 4 to 28 °C, but had lost their integrity after 3 h at 32 °C as the cells pulled away from one another and from the plastic surface. F-actin appeared as prominent stress fibers in cells at 28 °C and as blobs in cells at 32 °C. At normothermia and at 26 °C, cells migrated as sheets into the gaps and closed (healed) the gaps within 5-6 days. By contrast, wounds took 14 days to heal at 4 °C. At 28 °C some cells migrated into the gap in the first few days but mainly as single cells rather than collectively and wounds never healed. When monolayers with wounds were challenged at 32 °C for 3 h and returned to 18-22 °C, cells lost their shape and actin organization and over the next 6 days detached and died. When monolayers were subjected to 26 °C for 24 h and challenged at 32 °C for 3 h prior to being placed at 18-22 °C, cell shape and actin cytoskeleton were maintained, and wounds were healed over 6 days. Thus, intestinal epithelial cells become thermostabilized for shape, cytoskeleton and migration by a prior heat exposure.
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Zhuravlev AV, Shchegolev BF, Zakharov GA, Ivanova PN, Nikitina EA, Savvateeva-Popova EV. 3-Hydroxykynurenine as a Potential Ligand for Hsp70 Proteins and Its Effects on Drosophila Memory After Heat Shock. Mol Neurobiol 2022; 59:1862-1871. [PMID: 35029786 DOI: 10.1007/s12035-021-02704-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 12/15/2021] [Indexed: 12/21/2022]
Abstract
Kynurenine products of tryptophan metabolism are modifiers of the nervous activity and oxidative processes in mammals and invertebrates. 3-Hydroxykynurenine (3HOK) in moderate concentrations is a lipid peroxidation inhibitor. However, its accumulation and oxidative auto-dimerization lead to oxidative stress development manifested in age-related neurodegenerative diseases (NDD) and neurological disorders provoked by acute stress. Different forms of stress, the mostly studied being heat shock response, rely on functioning of heat shock proteins of the Hsp70 superfamily. Since kynurenines are called "kids of stress," we performed computational estimation of affinity of 3HOK and other kynurenines binding to predicted ATP site of Drosophila melanogaster Hsp cognate 71 protein (Dhsp71) using AutoDock Vina. The binding energy of 3HOK dimer is - 9.4 kcal/mol; its orientation within the active site is close to that of ATP. This might be a new mechanism of producing a competitive inhibitor of Hsp70 chaperones that decreases organism ability to adapt to heat shock. We also showed that the Drosophila cardinal (cd1) mutant with 3HOK excess, serving as a model for Huntington's disease (HD), manifests severe defects of short-term memory after heat shock applied either in adults or at the prepupal stage.
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Affiliation(s)
- Aleksandr V Zhuravlev
- Neurogenetics Laboratory, Pavlov Institute of Physiology RAS, St. Petersburg, Russia.
| | - Boris F Shchegolev
- Neurogenetics Laboratory, Pavlov Institute of Physiology RAS, St. Petersburg, Russia
| | - Gennadii A Zakharov
- Neurogenetics Laboratory, Pavlov Institute of Physiology RAS, St. Petersburg, Russia
| | - Polina N Ivanova
- Neurogenetics Laboratory, Pavlov Institute of Physiology RAS, St. Petersburg, Russia
| | - Ekaterina A Nikitina
- Neurogenetics Laboratory, Pavlov Institute of Physiology RAS, St. Petersburg, Russia
- Department of Human and Animal Anatomy and Physiology, Herzen State Pedagogical University of Russia, St. Petersburg, Russia
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González-Tokman D, Bauerfeind SS, Schäfer MA, Walters RJ, Berger D, Blanckenhorn WU. Heritable responses to combined effects of heat stress and ivermectin in the yellow dung fly. Chemosphere 2022; 286:131030. [PMID: 34144808 DOI: 10.1016/j.chemosphere.2021.131030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 05/18/2021] [Accepted: 05/23/2021] [Indexed: 06/12/2023]
Abstract
In current times of global change, several sources of stress such as contaminants and high temperatures may act synergistically. The extent to which organisms persist in stressful conditions will depend on the fitness consequences of multiple simultaneously acting stressors and the genetic basis of compensatory genetic responses. Ivermectin is an antiparasitic drug used in livestock that is excreted in dung of treated cattle, causing severe negative consequences on non-target fauna. We evaluated the effect of a combination of heat stress and exposure to ivermectin in the yellow dung fly, Scathophaga stercoraria (Diptera: Scathophagidae). In a first experiment we investigated the effects of high rearing temperature on susceptibility to ivermectin, and in a second experiment we assayed flies from a latitudinal gradient to assess potential effects of local thermal adaptation on ivermectin sensitivity. The combination of heat and ivermectin synergistically reduced offspring survival, revealing severe effects of the two stressors when combined. However, latitudinal populations did not systematically vary in how ivermectin affected offspring survival, body size, development time, cold and heat tolerance. We also found very low narrow-sense heritability of ivermectin sensitivity, suggesting evolutionary constraints for responses to the combination of these stressors beyond immediate maternal or plastic effects. If the revealed patterns hold also for other invertebrates, the combination of increasing climate warming and ivermectin stress may thus have severe consequences for biodiversity. More generally, our study underlines the need for quantitative genetic analyses in understanding wildlife responses to interacting stressors that act synergistically and threat biodiversity.
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Affiliation(s)
- Daniel González-Tokman
- CONACYT. Red de Ecoetología, Instituto de Ecología A. C. Carretera Antigua a Coatepec 351. El Haya, Xalapa, Veracruz, 91073, Mexico.
| | - Stephanie S Bauerfeind
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
| | - Martin A Schäfer
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
| | - Richard J Walters
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland; Centre for Environmental and Climate Science, Lund University, Sölvegatan 37, SE-223 62, Lund, Sweden.
| | - David Berger
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland; Department of Ecology and Genetics, Uppsala University, Sweden, Norbyvägen 18D, S-752 36, Uppsala, Sweden.
| | - Wolf U Blanckenhorn
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
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Abstract
In the last few decades, stem cell-based therapies have gained attention worldwide for various diseases and disorders. Adult stem cells, particularly mesenchymal stem cells (MSCs), are preferred due to their significant regenerative potential in cellular therapies and are currently involved in hundreds of clinical trials. Although MSCs have high self-renewal as well as differentiation potential, such abilities are compromised with “advanced age” and “disease status” of the donor. Similarly, cell-based therapies require high cell number for clinical applications that often require in vitro expansion of cells. It is pertinent to note that aged individuals are the main segment of population for stem cell-based therapies, however; autologous use of stem cells for such patients (aged and diseased) does not seem to give optimal results due to their compromised potential. In vitro expansion to obtain large numbers of cells also negatively affects the regenerative potential of MSCs. It is therefore essential to improve the regenerative potential of stem cells compromised due to “in vitro expansion”, “donor age” and “donor disease status” for their successful autologous use. The current review has been organized to address the age and disease depleted function of resident adult stem cells, and the strategies to improve their potential. To combat the problem of decline in the regenerative potential of cells, this review focuses on the strategies that manipulate the cell environment such as hypoxia, heat shock, caloric restriction and preconditioning with different factors.
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Affiliation(s)
- Mahmood S Choudhery
- Department of Biomedical Sciences, King Edward Medical University, Lahore 54000, Punjab, Pakistan
- Department of Genetics and Molecular Biology, University of Health Sciences, Lahore 54600, Punjab, Pakistan
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47
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Telonis-Scott M, Ali Z, Hangartner S, Sgrò CM. Temporal specific coevolution of Hsp70 and co-chaperone stv expression in Drosophila melanogaster under selection for heat tolerance. J Therm Biol 2021; 102:103110. [PMID: 34863477 DOI: 10.1016/j.jtherbio.2021.103110] [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: 05/18/2021] [Revised: 09/27/2021] [Accepted: 10/20/2021] [Indexed: 10/20/2022]
Abstract
Heat shock proteins (Hsps) have long been candidates for ecological adaptation given their unequivocal role in mitigating cell damage from heat stress, but linking Hsps to heat tolerance has proven difficult given the complexity of thermal adaptation. Experimental evolution has been utilized to examine direct and correlated responses to selection for increased heat tolerance in Drosophila, often focusing on the major Hsp family Hsp70 and/or the master regulator HSF as a selection response, but rarely on other aspects of the heat shock complex. We examined Hsp70 and co-chaperone stv isoform transcript expression in Australian D. melanogaster lines selected for static heat tolerance, and observed a temporal and stv isoform specific, coordinated transcriptional selection response with Hsp70, suggesting that increased chaperone output accompanied increased heat tolerance. We hypothesize that the coordinated evolutionary response of Hsp70 and stv may have arisen as a correlated response resulting from a shared regulatory hierarchy. Our work highlights the complexity and specificity of the heat shock response in D. melanogaster. The selected lines examined also showed correlated responses for other measures of heat tolerance, and the coevolution of Hsp70 and stv provide new avenues to examine the common mechanisms underpinning direct and correlated phenotypic responses to selection for heat tolerance.
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Affiliation(s)
- Marina Telonis-Scott
- School of Life and Environmental Sciences, Deakin University, Geelong, 3220, Australia.
| | - Zeinab Ali
- School of Biological Sciences, Monash University, Clayton, Melbourne, 3800, Australia
| | - Sandra Hangartner
- School of Biological Sciences, Monash University, Clayton, Melbourne, 3800, Australia
| | - Carla M Sgrò
- School of Biological Sciences, Monash University, Clayton, Melbourne, 3800, Australia
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48
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Davis RJ, Belikoff EJ, Dickey AN, Scholl EH, Benoit JB, Scott MJ. Genome and transcriptome sequencing of the green bottle fly, Lucilia sericata, reveals underlying factors of sheep flystrike and maggot debridement therapy. Genomics 2021; 113:3978-3988. [PMID: 34619342 DOI: 10.1016/j.ygeno.2021.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 06/28/2021] [Revised: 09/03/2021] [Accepted: 10/01/2021] [Indexed: 12/13/2022]
Abstract
The common green bottle blow fly Lucilia sericata (family, Calliphoridae) is widely used for maggot debridement therapy, which involves the application of sterile maggots to wounds. The larval excretions and secretions are important for consuming necrotic tissue and inhibiting bacterial growth in wounds of patients. Lucilia sericata is also of importance as a pest of sheep and in forensic studies to estimate a postmortem interval. Here we report the assembly of a 565.3 Mb genome from long read PacBio DNA sequencing of genomic DNA. The genome contains 14,704 predicted protein coding genes and 1709 non-coding genes. Targeted annotation and transcriptional analyses identified genes that are highly expressed in the larval salivary glands (secretions) and Malpighian tubules (excretions) under normal growth conditions and following heat stress. The genomic resources will underpin future genetic studies and in development of engineered strains for genetic control of L. sericata and for biotechnology-enhanced maggot therapy.
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Affiliation(s)
- Rebecca J Davis
- Department of Entomology and Plant Pathology, North Carolina State University, Campus Box 7613, Raleigh, NC 27695-7613, USA.
| | - Esther J Belikoff
- Department of Entomology and Plant Pathology, North Carolina State University, Campus Box 7613, Raleigh, NC 27695-7613, USA.
| | - Allison N Dickey
- Bioinformatics Research Center, North Carolina State University, Campus Box 7566, Raleigh, NC 27695-7566, USA.
| | - Elizabeth H Scholl
- Bioinformatics Research Center, North Carolina State University, Campus Box 7566, Raleigh, NC 27695-7566, USA.
| | - Joshua B Benoit
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH 45211, USA.
| | - Maxwell J Scott
- Department of Entomology and Plant Pathology, North Carolina State University, Campus Box 7613, Raleigh, NC 27695-7613, USA.
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Mackei M, Mátis G, Molnár A, Sebők C, Vörösházi J, Pál L, Dublecz K, Husvéth F, Neogrády Z. The relationship between small heat shock proteins and redox homeostasis during acute heat stress in chickens. J Therm Biol 2021; 100:103040. [PMID: 34503787 DOI: 10.1016/j.jtherbio.2021.103040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/01/2021] [Accepted: 06/25/2021] [Indexed: 12/25/2022]
Abstract
As heat stress is a major emerging issue in poultry farming, investigations on the molecular mechanisms of the heat-triggered cellular response in chickens are of special importance. In the present study, 32-day-old Ross 308 broiler chickens were subjected to 37 °C environmental temperature combined with 50% relative humidity for 4 or 8 h respectively. Following sampling, redox parameters such as malondialdehyde (MDA), reduced glutathione (GSH), protein carbonyl levels as well as glutathione peroxidase activity were assessed in liver, spleen, and kidney homogenates. The concentrations of small heat shock proteins (sHSP-s) HSP27, αA- and αB-crystallins were also investigated. Among these organs, the liver was found the most susceptible to heat-provoked oxidative stress, indicated by enhanced lipid peroxidation and rapid activation of protective pathways, including the definite increase of glutathione peroxidase activity and the excessive utilization of αA- and αB-crystallin proteins. Heat-associated decline of protein carbonylation and GSH content was observed in the liver in correlation with the increased involvement of αA- and αB-crystallins in cellular defense, resulting supposedly in an overcompensation mechanism. These data highlight the hepatic sensitivity to acute heat shock, potential adaptation mechanisms, and the specific role of sHSP-s in the restoration of physiologic cell function.
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50
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Liu W, Huang L, Liang X, Liu L, Sun C, Lin X. Heat shock induces cross adaptation to aluminum stress through enhancing ascorbate-glutathione cycle in wheat seedlings. Chemosphere 2021; 278:130397. [PMID: 33823355 DOI: 10.1016/j.chemosphere.2021.130397] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 02/06/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
Aluminum (Al), a neurotoxin agent, is universal in the earth crust, but its bioavailability and toxicity are manifested under acidic conditions. Up to 60% of the acid soils are distributed in tropical and subtropical regions, where crops simultaneously experience heat-shock stress. Here, we investigated the effects of heat shock-priming on Al tolerance in two different wheat genotypes. Conditioning of wheat seedlings with short period high temperature significantly alleviated Al-induced root growth inhibition, but did not significantly affect Al accumulation. However, we observed that heat shock-primed roots maintained lower levels of lipid peroxidation and higher cell viability. These priming-triggered effects were associated with reactive oxygen species (ROS) homeostasis. Furthermore, conditioning of plants with high temperature increased the contents of reduced ascorbate and glutathione, and ratios of reduced to oxidized forms of these molecules in wheat roots. However, ascorbate or glutathione biosynthesis inhibitors markedly prevented heat shock priming-induced ROS reduction accompanied by aggravated root elongation. Moreover, heat shock-priming enhanced the metabolic intensity of ascorbate-glutathione cycle, as activities of the cycle-allied enzymes were significantly increased. These results suggest that heat-shock induces cross adaptation to Al toxicity through sustaining efficient ascorbate-glutathione cycle operation in wheat plants.
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Affiliation(s)
- Wenjing Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lin Huang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xin Liang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lijuan Liu
- Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China.
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
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