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Bian X, Li M, Liu X, Zhu Y, Li J, Bergen PJ, Li W, Li X, Feng M, Zhang J. Transcriptomic investigations of polymyxins and colistin/sulbactam combination against carbapenem-resistant Acinetobacter baumannii. Comput Struct Biotechnol J 2024; 23:2595-2605. [PMID: 39006922 PMCID: PMC11245955 DOI: 10.1016/j.csbj.2024.05.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 07/16/2024] Open
Abstract
Carbapenem-resistant Acinetobacter baumannii (CRAB) is a Priority 1 (Critical) pathogen urgently requiring new antibiotics. Polymyxins are a last-line option against CRAB-associated infections. This transcriptomic study utilized a CRAB strain to investigate mechanisms of bacterial killing with polymyxin B, colistin, colistin B, and colistin/sulbactam combination therapy. After 4 h of 2 mg/L polymyxin monotherapy, all polymyxins exhibited common transcriptomic responses which primarily involved disruption to amino acid and fatty acid metabolism. Of the three monotherapies, polymyxin B induced the greatest number of differentially expressed genes (DEGs), including for genes involved with fatty acid metabolism. Gene disturbances with colistin and colistin B were highly similar (89 % common genes for colistin B), though effects on gene expression were generally lower (0-1.5-fold in most cases) with colistin B. Colistin alone (2 mg/L) or combined with sulbactam (64 mg/L) resulted in rapid membrane disruption as early as 1 h. Transcriptomic analysis of this combination revealed that the effects were driven by colistin, which included disturbances in fatty acid synthesis and catabolism, and inhibition of nutrient uptake. Combination therapy produced substantially higher fold changes in 72 % of DEGs shared with monotherapy, leading to substantially greater reductions in fatty acid biosynthesis and increases in biofilm, cell wall, and phospholipid synthesis. This indicates synergistic bacterial killing with the colistin/sulbactam combination results from a systematic increase in perturbation of many genes associated with bacterial metabolism. These mechanistic insights enhance our understanding of bacterial responses to polymyxin mono- and combination therapy and will assist to optimize polymyxin use in patients.
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Affiliation(s)
- Xingchen Bian
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
- Key Laboratory of Clinical Pharmacology of Antibiotics, Shanghai, China
- National Health Commission & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Department of biological medicines & Shanghai Engineering Research Center of Immunotherapeutics, School of Pharmacy, Fudan University, Shanghai, China
- Clinical Pharmacology Research Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Mengyao Li
- Department of Critical Care Medicine, The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, China
- Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, China
| | - Xiaofen Liu
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
- Key Laboratory of Clinical Pharmacology of Antibiotics, Shanghai, China
- National Health Commission & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yan Zhu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, China
| | - Jian Li
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Australia
| | - Phillip J Bergen
- Biomedicine Discovery Institute and Department of Microbiology, Monash University, Melbourne, Australia
| | - Wanzhen Li
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
- Key Laboratory of Clinical Pharmacology of Antibiotics, Shanghai, China
- National Health Commission & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Xin Li
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
- Key Laboratory of Clinical Pharmacology of Antibiotics, Shanghai, China
- National Health Commission & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Meiqing Feng
- Department of biological medicines & Shanghai Engineering Research Center of Immunotherapeutics, School of Pharmacy, Fudan University, Shanghai, China
| | - Jing Zhang
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
- Key Laboratory of Clinical Pharmacology of Antibiotics, Shanghai, China
- National Health Commission & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Clinical Pharmacology Research Center, Huashan Hospital, Fudan University, Shanghai, China
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Kul E, Stork O. Trehalose consumption ameliorates pathogenesis in an inducible mouse model of the Fragile X-associated tremor/ataxia syndrome. Nutr Neurosci 2024; 27:826-835. [PMID: 37776526 DOI: 10.1080/1028415x.2023.2261682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/02/2023]
Abstract
Trehalose is a naturally occurring sugar found in various food and pharmaceutical preparations with the ability to enhance cellular proteostasis and reduce the formation of toxic intracellular protein aggregates, making it a promising therapeutic candidate for various neurodegenerative disorders. OBJECTIVES Here, we explored the effectiveness of nutritional trehalose supplementation in ameliorating symptoms in a mouse model of Fragile X-associated tremor/ataxia syndrome (FXTAS), an incurable late onset manifestation of moderately expanded trinucleotide CGG repeat expansion mutations in the 5' untranslated region of the fragile X messenger ribonucleoprotein 1 gene (FMR1). METHODS An inducible mouse model of FXTAS expressing 90 CGG repeats in the brain had been previously developed, which faithfully captures hallmarks of the disorder, the formation of intracellular inclusions, and the disturbance of motor function. Taking advantage of the inducible nature of the model, we investigated the therapeutic potential of orally administered trehalose under two regimens, modelling disease prevention and disease treatment. RESULTS AND DISCUSSION Trehalose's effectiveness in combating protein aggregation is frequently attributed to its ability to induce autophagy. Accordingly, trehalose supplementation under the prevention regimen ameliorated the formation of intranuclear inclusions and improved the motor deficiencies resulting from the induced expression of 90 CGG repeats, but it failed to reverse the existing nuclear pathology as a treatment strategy. Given the favorable safety profile of trehalose, it is promising to further explore the potential of this agent for early stage FXTAS.
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Affiliation(s)
- Emre Kul
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Oliver Stork
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Center for Behavioral Brain Sciences, Magdeburg, Germany
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Sahranavard M, Hosseinjani H, Emadzadeh M, Jamialahmadi T, Sahebkar A. Effect of trehalose on mortality and disease severity in ICU-admitted patients: Protocol for a triple-blind, randomized, placebo-controlled clinical trial. Contemp Clin Trials Commun 2024; 40:101324. [PMID: 39021672 PMCID: PMC11252791 DOI: 10.1016/j.conctc.2024.101324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 05/04/2024] [Accepted: 06/13/2024] [Indexed: 07/20/2024] Open
Abstract
Background Improvement in organ failure in intensive care unit (ICU) patients is accompanied by lower mortality rate. A disaccharide, trehalose is a candidate to improve organ failure and survival by autophagy induction and enhancing oxidative stress defense. The aim of this study is to assess the effectiveness of trehalose in improving clinical outcome and reducing mortality in ICU patients. Methods a triple-blind, randomized, placebo-controlled, two arm, parallel-group, superiority clinical trial will enroll 200 ICU-admitted patients at Imam Reza hospital, Mashhad, Iran. The patients will be randomly allocated to receive either a 100 ml solution of 15 % trehalose or normal saline intravenously. Primary outcomes include ICU mortality and 60-day mortality, while secondary outcomes focus on blood parameters on day 5 and length of hospital/ICU stay. Conclusion Trehalose has demonstrated beneficial effects in diverse patients; however, no study has evaluated its effect in all ICU-admitted patients. Consequently, this study provides an opportunity to investigate whether trehalose's anti-inflammatory effects, mediated by inducing autophagy and enhancing oxidative stress defense, can play a role in reducing mortality and improving clinical outcomes in the critically ill patients. If successful, trehalose could offer a potential therapeutic approach in the ICU setting.
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Affiliation(s)
- Mehrdad Sahranavard
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hesamoddin Hosseinjani
- Department of Clinical Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Emadzadeh
- Clinical Research Development Unit, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Tannaz Jamialahmadi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Pupyshev AB, Akopyan AA, Tenditnik MV, Ovsyukova MV, Dubrovina NI, Belichenko VM, Korolenko TA, Zozulya SA, Klyushnik TP, Tikhonova MA. Alimentary Treatment with Trehalose in a Pharmacological Model of Alzheimer's Disease in Mice: Effects of Different Dosages and Treatment Regimens. Pharmaceutics 2024; 16:813. [PMID: 38931934 PMCID: PMC11207537 DOI: 10.3390/pharmaceutics16060813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
In the treatment of experimental neurodegeneration with disaccharide trehalose, various regimens are used, predominantly a 2% solution, drunk for several weeks. We studied the effects of different regimens of dietary trehalose treatment in an amyloid-β (Aβ) 25-35-induced murine model of Alzheimer's disease (AD). Aβ-treated mice received 2% trehalose solution daily, 4% trehalose solution daily (continuous mode) or every other day (intermittent mode), to drink for two weeks. We revealed the dose-dependent effects on autophagy activation in the frontal cortex and hippocampus, and the restoration of behavioral disturbances. A continuous intake of 4% trehalose solution caused the greatest activation of autophagy and the complete recovery of step-through latency in the passive avoidance test that corresponds to associative long-term memory and learning. This regimen also produced an anxiolytic effect in the open field. The effects of all the regimens studied were similar in Aβ load, neuroinflammatory response, and neuronal density in the frontal cortex and hippocampus. Trehalose successfully restored these parameters to the levels of the control group. Thus, high doses of trehalose had increased efficacy towards cognitive impairment in a model of early AD-like pathology. These findings could be taken into account for translational studies and the development of clinical approaches for AD therapy using trehalose.
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Affiliation(s)
- Alexander B. Pupyshev
- Laboratory of the Neurobiological Mechanisms of Neurodegenerative Processes, Department of Experimental Neuroscience, Scientific Research Institute of Neurosciences and Medicine (SRINM), 630017 Novosibirsk, Russia
| | - Anna A. Akopyan
- Laboratory of the Neurobiological Mechanisms of Neurodegenerative Processes, Department of Experimental Neuroscience, Scientific Research Institute of Neurosciences and Medicine (SRINM), 630017 Novosibirsk, Russia
| | - Michael V. Tenditnik
- Laboratory of the Neurobiological Mechanisms of Neurodegenerative Processes, Department of Experimental Neuroscience, Scientific Research Institute of Neurosciences and Medicine (SRINM), 630017 Novosibirsk, Russia
| | - Marina V. Ovsyukova
- Laboratory of the Neurobiological Mechanisms of Neurodegenerative Processes, Department of Experimental Neuroscience, Scientific Research Institute of Neurosciences and Medicine (SRINM), 630017 Novosibirsk, Russia
| | - Nina I. Dubrovina
- Laboratory of the Neurobiological Mechanisms of Neurodegenerative Processes, Department of Experimental Neuroscience, Scientific Research Institute of Neurosciences and Medicine (SRINM), 630017 Novosibirsk, Russia
| | - Victor M. Belichenko
- Laboratory of the Neurobiological Mechanisms of Neurodegenerative Processes, Department of Experimental Neuroscience, Scientific Research Institute of Neurosciences and Medicine (SRINM), 630017 Novosibirsk, Russia
| | - Tatiana A. Korolenko
- Laboratory of the Neurobiological Mechanisms of Neurodegenerative Processes, Department of Experimental Neuroscience, Scientific Research Institute of Neurosciences and Medicine (SRINM), 630017 Novosibirsk, Russia
| | | | | | - Maria A. Tikhonova
- Laboratory of the Neurobiological Mechanisms of Neurodegenerative Processes, Department of Experimental Neuroscience, Scientific Research Institute of Neurosciences and Medicine (SRINM), 630017 Novosibirsk, Russia
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Christoudia N, Bekas N, Kanata E, Chatziefsthathiou A, Pettas S, Karagianni K, Da Silva Correia SM, Schmitz M, Zerr I, Tsamesidis I, Xanthopoulos K, Dafou D, Sklaviadis T. Αnti-prion effects of anthocyanins. Redox Biol 2024; 72:103133. [PMID: 38565068 PMCID: PMC10990977 DOI: 10.1016/j.redox.2024.103133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/22/2024] [Accepted: 03/24/2024] [Indexed: 04/04/2024] Open
Abstract
Prion diseases, also known as Transmissible Spongiform Encephalopathies (TSEs), are protein-based neurodegenerative disorders (NDs) affecting humans and animals. They are characterized by the conformational conversion of the normal cellular prion protein, PrPC, into the pathogenic isoform, PrPSc. Prion diseases are invariably fatal and despite ongoing research, no effective prophylactic or therapeutic avenues are currently available. Anthocyanins (ACNs) are unique flavonoid compounds and interest in their use as potential neuroprotective and/or therapeutic agents against NDs, has increased significantly in recent years. Therefore, we investigated the potential anti-oxidant and anti-prion effects of Oenin and Myrtillin, two of the most common anthocyanins, using the most accepted in the field overexpressing PrPScin vitro model and a cell free protein aggregation model. Our results, indicate both anthocyanins as strong anti-oxidant compounds, upregulating the expression of genes involved in the anti-oxidant response, and reducing the levels of Reactive Oxygen Species (ROS), produced due to pathogenic prion infection, through the activation of the Keap1-Nrf2 pathway. Importantly, they showcased remarkable anti-prion potential, as they not only caused the clearance of pathogenic PrPSc aggregates, but also completely inhibited the formation of PrPSc fibrils in the Cerebrospinal Fluid (CSF) of patients with Creutzfeldt-Jakob disease (CJD). Therefore, Oenin and Myrtillin possess pleiotropic effects, suggesting their potential use as promising preventive and/or therapeutic agents in prion diseases and possibly in the spectrum of neurodegenerative proteinopathies.
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Affiliation(s)
- Nikoletta Christoudia
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Nikolaos Bekas
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Eirini Kanata
- Neurodegenerative Diseases Research Group, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Athanasia Chatziefsthathiou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Spyros Pettas
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece; Neurodegenerative Diseases Research Group, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Korina Karagianni
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Susana Margarida Da Silva Correia
- Department of Neurology, German Center for Neurodegenerative Diseases (DZNE), University Medicine Goettingen, 37075, Goettingen, Germany
| | - Matthias Schmitz
- Department of Neurology, German Center for Neurodegenerative Diseases (DZNE), University Medicine Goettingen, 37075, Goettingen, Germany.
| | - Inga Zerr
- Department of Neurology, German Center for Neurodegenerative Diseases (DZNE), University Medicine Goettingen, 37075, Goettingen, Germany.
| | - Ioannis Tsamesidis
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Konstantinos Xanthopoulos
- Neurodegenerative Diseases Research Group, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Dimitra Dafou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Theodoros Sklaviadis
- Neurodegenerative Diseases Research Group, Department of Pharmacy, School of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
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Zhang Y, Yang E, Liu Q, Zhang J, Feng C. Combined full-length transcriptomic and metabolomic analysis reveals the molecular mechanisms underlying nutrients and taste components development in Primulina juliae. BMC Genom Data 2024; 25:46. [PMID: 38783179 PMCID: PMC11112898 DOI: 10.1186/s12863-024-01231-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/16/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Primulina juliae has recently emerged as a novel functional vegetable, boasting a significant biomass and high calcium content. Various breeding strategies have been employed to the domestication of P. juliae. However, the absence of genome and transcriptome information has hindered the research of mechanisms governing the taste and nutrients in this plant. In this study, we conducted a comprehensive analysis, combining the full-length transcriptomics and metabolomics, to unveil the molecular mechanisms responsible for the development of nutrients and taste components in P. juliae. RESULTS We obtain a high-quality reference transcriptome of P. juliae by combing the PacBio Iso-seq and Illumina sequencing technologies. A total of 58,536 cluster consensus sequences were obtained, including 28,168 complete protein coding transcripts and 8,021 Long Non-coding RNAs. Significant differences were observed in the composition and content of compounds related to nutrients and taste, particularly flavonoids, during the leaf development. Our results showed a decrease in the content of most flavonoids as leaves develop. Malate and succinate accumulated with leaf development, while some sugar metabolites were decreased. Furthermore, we identified the different accumulation of amino acids and fatty acids, which are associated with taste traits. Moreover, our transcriptomic analysis provided a molecular basis for understanding the metabolic variations during leaf development. We identified 4,689 differentially expressed genes in the two developmental stages, and through a comprehensive transcriptome and metabolome analysis, we discovered the key structure genes and transcription factors involved in the pathways. CONCLUSIONS This study provides a high-quality reference transcriptome and reveals molecular mechanisms associated with the development of nutrients and taste components in P. juliae. These findings will enhance our understanding of the breeding and utilization of P. juliae as a vegetable.
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Affiliation(s)
- Yi Zhang
- Jiangxi Provincial Key Laboratory of ex situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Zhiqing Rd, No. 9, Jiujiang, 332900, China
- College of Life Science, Nanchang University, Nanchang, China
| | - Endian Yang
- Jiangxi Provincial Key Laboratory of ex situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Zhiqing Rd, No. 9, Jiujiang, 332900, China
- College of Life Science, Nanchang University, Nanchang, China
| | - Qin Liu
- Jiangxi Provincial Key Laboratory of ex situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Zhiqing Rd, No. 9, Jiujiang, 332900, China
- College of Life Science, Nanchang University, Nanchang, China
| | - Jie Zhang
- Jiangxi Provincial Key Laboratory of ex situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Zhiqing Rd, No. 9, Jiujiang, 332900, China
| | - Chen Feng
- Jiangxi Provincial Key Laboratory of ex situ Plant Conservation and Utilization, Lushan Botanical Garden, Chinese Academy of Sciences, Zhiqing Rd, No. 9, Jiujiang, 332900, China.
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Zhang J, Lv W, Zhang G, Zeng M, Cao W, Su J, Cao K, Liu J. Nuclear Factor Erythroid 2 Related Factor 2 and Mitochondria Form a Mutually Regulating Circuit in the Prevention and Treatment of Metabolic Syndrome. Antioxid Redox Signal 2024. [PMID: 38183629 DOI: 10.1089/ars.2023.0339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2024]
Abstract
Significance: Metabolic syndrome (MetS) has become a major global public health problem and there is an urgent need to elucidate its pathogenesis and find more effective targets and modalities for intervention. Recent Advances: Oxidative stress and inflammation are two of the major causes of MetS-related symptoms such as insulin resistance and obesity. Nuclear factor erythroid 2 related factor 2 (Nrf2) is one of the important systems responding to oxidative stress and inflammation. As cells undergo stress, cysteines within Kelch-like ECH-associated protein 1 (Keap1) are oxidized or electrophilically modified, allowing Nrf2 to escape ubiquitination and be translocated from the cytoplasm to the nucleus, facilitating the initiation of the antioxidant transcriptional program. Meanwhile, a growing body of evidence points out a specific modulation of mitochondrial homeostasis by Nrf2. After nuclear translocation, Nrf2 activates downstream genes involved in various aspects of mitochondrial homeostasis, including mitochondrial biogenesis and dynamics, mitophagy, aerobic respiration, and energy metabolism. In turn, mitochondria reciprocally activate Nrf2 by releasing reactive oxygen species and regulating antioxidant enzymes. Critical Issues: In this review, we first summarize the interactions between Nrf2 and mitochondria in the modulation of oxidative stress and inflammation to ameliorate MetS, then propose that Nrf2 and mitochondria form a mutually regulating circuit critical to maintaining homeostasis during MetS. Future Directions: Targeting the Nrf2-mitochondrial circuit may be a promising strategy to ameliorate MetS, such as obesity, diabetes, and cardiovascular diseases.
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Affiliation(s)
- Jiawei Zhang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Weiqiang Lv
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Guanfei Zhang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Mengqi Zeng
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Wenli Cao
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Jiacan Su
- Department of Orthopedics Trauma, Shanghai Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Ke Cao
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Jiankang Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
- School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Qingdao, China
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Vikram A, Patel SK, Singh A, Pathania D, Ray RS, Upadhyay AK, Dwivedi A. Natural autophagy activators: A promising strategy for combating photoaging. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 132:155508. [PMID: 38901286 DOI: 10.1016/j.phymed.2024.155508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Photodamage to the skin stands out as one of the most widespread epidermal challenges globally. Prolonged exposure to sunlight containing ultraviolet radiation (UVR) instigates stress, thereby compromising the skin's functionality and culminating in photoaging. Recent investigations have shed light on the importance of autophagy in shielding the skin from photodamage. Despite the acknowledgment of numerous phytochemicals possessing photoprotective attributes, their potential to induce autophagy remains relatively unexplored. PURPOSE Diminished autophagy activity in photoaged skin underscores the potential benefits of restoring autophagy through natural compounds to enhance photoprotection. Consequently, this study aims to highlight the role of natural compounds in safeguarding against photodamage and to assess their potential to induce autophagy via an in-silico approach. METHODS A thorough search of the literature was done using several databases, including PUBMED, Science Direct, and Google Scholar, to gather relevant studies. Several keywords such as Phytochemical, Photoprotection, mTOR, Ultraviolet Radiation, Reactive oxygen species, Photoaging, and Autophagy were utilized to ensure thorough exploration. To assess the autophagy potential of phytochemicals through virtual screening, computational methodologies such as molecular docking were employed, utilizing tools like AutoDock Vina. Receptor preparation for docking was facilitated using MGLTools. RESULTS The initiation of structural and functional deterioration in the skin due to ultraviolet radiation (UVR) or sunlight-induced reactive oxygen species/reactive nitrogen species (ROS/RNS) involves the modulation of various pathways. Natural compounds like phenolics, flavonoids, flavones, and anthocyanins, among others, possess chromophores capable of absorbing light, thereby offering photoprotection by modulating these pathways. In our molecular docking study, these phytochemicals have shown binding affinity with mTOR, a negative regulator of autophagy, indicating their potential as autophagy modulators. CONCLUSION This integrated review underscores the photoprotective characteristics of natural compounds, while the in-silico analysis reveals their potential to modulate autophagy, which could significantly contribute to their anti-photoaging properties. The findings of this study hold promise for the advancement of cosmeceuticals and therapeutics containing natural compounds aimed at addressing photoaging and various skin-related diseases. By leveraging their dual benefits of photoprotection and autophagy modulation, these natural compounds offer a multifaceted approach to combatting skin aging and related conditions.
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Affiliation(s)
- Apeksha Vikram
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India
| | - Sunil Kumar Patel
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India
| | - Arshwinder Singh
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala-147004 Punjab, India
| | - Diksha Pathania
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India
| | - Ratan Singh Ray
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India
| | - Atul Kumar Upadhyay
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala-147004 Punjab, India.
| | - Ashish Dwivedi
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR- Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow-226001 Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002 Uttar Pradesh, India.
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Xiang Y, Song X, Long D. Ferroptosis regulation through Nrf2 and implications for neurodegenerative diseases. Arch Toxicol 2024; 98:579-615. [PMID: 38265475 PMCID: PMC10861688 DOI: 10.1007/s00204-023-03660-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/07/2023] [Indexed: 01/25/2024]
Abstract
This article provides an overview of the background knowledge of ferroptosis in the nervous system, as well as the key role of nuclear factor E2-related factor 2 (Nrf2) in regulating ferroptosis. The article takes Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS) as the starting point to explore the close association between Nrf2 and ferroptosis, which is of clear and significant importance for understanding the mechanism of neurodegenerative diseases (NDs) based on oxidative stress (OS). Accumulating evidence links ferroptosis to the pathogenesis of NDs. As the disease progresses, damage to the antioxidant system, excessive OS, and altered Nrf2 expression levels, especially the inhibition of ferroptosis by lipid peroxidation inhibitors and adaptive enhancement of Nrf2 signaling, demonstrate the potential clinical significance of Nrf2 in detecting and identifying ferroptosis, as well as targeted therapy for neuronal loss and mitochondrial dysfunction. These findings provide new insights and possibilities for the treatment and prevention of NDs.
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Affiliation(s)
- Yao Xiang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Xiaohua Song
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Dingxin Long
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China.
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China.
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Khan S, Wang T, Cobo ER, Liang B, Khan MA, Xu M, Qu W, Gao J, Barkema HW, Kastelic JP, Liu G, Han B. Antioxidative Sirt1 and the Keap1-Nrf2 Signaling Pathway Impair Inflammation and Positively Regulate Autophagy in Murine Mammary Epithelial Cells or Mammary Glands Infected with Streptococcus uberis. Antioxidants (Basel) 2024; 13:171. [PMID: 38397769 PMCID: PMC10886112 DOI: 10.3390/antiox13020171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Streptococcus uberis mastitis in cattle infects mammary epithelial cells. Although oxidative responses often remove intracellular microbes, S. uberis survives, but the mechanisms are not well understood. Herein, we aimed to elucidate antioxidative mechanisms during pathogenesis of S. uberis after isolation from clinical bovine mastitis milk samples. S. uberis's in vitro pathomorphology, oxidative stress biological activities, transcription of antioxidative factors, inflammatory response cytokines, autophagosome and autophagy functions were evaluated, and in vivo S. uberis was injected into the fourth mammary gland nipple of each mouse to assess the infectiousness of S. uberis potential molecular mechanisms. The results showed that infection with S. uberis induced early oxidative stress and increased reactive oxygen species (ROS). However, over time, ROS concentrations decreased due to increased antioxidative activity, including total superoxide dismutase (T-SOD) and malondialdehyde (MDA) enzymes, plus transcription of antioxidative factors (Sirt1, Keap1, Nrf2, HO-1). Treatment with a ROS scavenger (N-acetyl cysteine, NAC) before infection with S. uberis reduced antioxidative responses and the inflammatory response, including the cytokines IL-6 and TNF-α, and the formation of the Atg5-LC3II/LC3I autophagosome. Synthesis of antioxidants determined autophagy functions, with Sirt1/Nrf2 activating autophagy in the presence of S. uberis. This study demonstrated the evasive mechanisms of S. uberis in mastitis, including suppressing inflammatory and ROS defenses by stimulating antioxidative pathways.
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Affiliation(s)
- Sohrab Khan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.K.); (T.W.); (B.L.); (M.A.K.); (M.X.); (J.G.)
| | - Tian Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.K.); (T.W.); (B.L.); (M.A.K.); (M.X.); (J.G.)
| | - Eduardo R. Cobo
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (E.R.C.); (H.W.B.); (J.P.K.)
| | - Bingchun Liang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.K.); (T.W.); (B.L.); (M.A.K.); (M.X.); (J.G.)
| | - Muhammad Asfandyar Khan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.K.); (T.W.); (B.L.); (M.A.K.); (M.X.); (J.G.)
| | - Maolin Xu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.K.); (T.W.); (B.L.); (M.A.K.); (M.X.); (J.G.)
| | - Weijie Qu
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China;
| | - Jian Gao
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.K.); (T.W.); (B.L.); (M.A.K.); (M.X.); (J.G.)
| | - Herman W. Barkema
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (E.R.C.); (H.W.B.); (J.P.K.)
| | - John P. Kastelic
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (E.R.C.); (H.W.B.); (J.P.K.)
| | - Gang Liu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.K.); (T.W.); (B.L.); (M.A.K.); (M.X.); (J.G.)
| | - Bo Han
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.K.); (T.W.); (B.L.); (M.A.K.); (M.X.); (J.G.)
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11
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Mobini M, Radbakhsh S, Kubaski F, Eshraghi P, Vakili S, Vakili R, Abbasifard M, Jamialahmadi T, Rajabi O, Emami SA, Tayarani-Najaran Z, Rizzo M, Eid AH, Banach M, Sahebkar A. Effects of Trehalose Administration in Patients with Mucopolysaccharidosis Type III. Curr Med Chem 2024; 31:3033-3042. [PMID: 37038706 DOI: 10.2174/0929867330666230406102555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 02/04/2023] [Accepted: 02/24/2023] [Indexed: 04/12/2023]
Abstract
BACKGROUND AND AIM Mucopolysaccharidosis type III (MPS III) is a rare autosomal recessive lysosomal storage disease (LSD) caused by a deficiency of lysosomal enzymes required for the catabolism of glycosaminoglycans (GAGs), mainly in the central nervous system. Trehalose has been proposed as a potential therapeutic agent to attenuate neuropathology in MPS III. We conducted a single- arm, open-label study to evaluate the efficacy of trehalose treatment in patients with MPS IIIA and MPS IIIB. METHODS Five patients with MPS III were enrolled. Trehalose was administrated intravenously (15 g/week) for 12 weeks. Health-related quality of life and cognitive function, serum biomarkers, liver, spleen, and lung imaging were assessed to evaluate trehalose efficacy at baseline and trial end (week 12). RESULTS TNO-AZL Preschool children Quality of Life (TAPQOL) scores increased in all patients, and the mean scores for quality of life were increased after the intervention. Serum GAG levels were reduced in all treated patients (however, the differences were not statistically significant). Alanine aminotransferase (ALT) levels were reduced in all patients post-treatment (p=0.0039). The mean levels of aspartate transaminase (AST) were also decreased after 12 weeks of treatment with Trehalose. Decreased serum pro-oxidant-antioxidant balance and increased GPX activity were observed at the end of the study. Decreases in mean splenic length were observed, whereas the liver volume did not change. CONCLUSION Improvements in health-related quality of life and serum biomarkers (GAGs, liver aminotransferase levels, antioxidant status), as well as liver and spleen size, were found following 3 months of trehalose administration in patients with MPS IIIA and MPS IIIB.
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Affiliation(s)
- Moein Mobini
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shabnam Radbakhsh
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Biotechnology and Nanotechnology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Francyne Kubaski
- Department of Genetics, UFRGS, Porto Alegre, 91501970, Brazil
- Medical Genetics Service, HCPA, Porto Alegre, 90035903
- Biodiscovery Lab, HCPA, Porto Alegre, 90035903, Brazil
| | - Peyman Eshraghi
- Department of Pediatric Diseases, Akbar Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saba Vakili
- Medical Genetic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rahim Vakili
- Medical Genetic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mitra Abbasifard
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- Department of Internal Medicine, Ali-Ibn Abi-Talib Hospital, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Tannaz Jamialahmadi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Omid Rajabi
- Department of Pharmaceutical and Food Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Ahmad Emami
- Department of Traditional Pharmacy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Tayarani-Najaran
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Manfredi Rizzo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (Promise), School of Medicine, University of Palermo, Palermo, Italy
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Maciej Banach
- Nephrology and Hypertension, Department of Preventive Cardiology and Lipidology, Medical University of Lodz, 93-338 Lodz, Poland
- Cardiovascular Research Centre, University of Zielona Gora, 65-417, Zielona Gora, Poland
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Yang X, Zhang Y, Luo JX, Zhu T, Ran Z, Mu BR, Lu MH. Targeting mitophagy for neurological disorders treatment: advances in drugs and non-drug approaches. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:3503-3528. [PMID: 37535076 DOI: 10.1007/s00210-023-02636-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 07/18/2023] [Indexed: 08/04/2023]
Abstract
Mitochondria serve as a vital energy source for nerve cells. The mitochondrial network also acts as a defense mechanism against external stressors that can threaten the stability of the nervous system. However, excessive accumulation of damaged mitochondria can lead to neuronal death. Mitophagy is an essential pathway in the mitochondrial quality control system and can protect neurons by selectively removing damaged mitochondria. In most neurological disorders, dysfunctional mitochondria are a common feature, and drugs that target mitophagy can improve symptoms. Here, we reviewed the role of mitophagy in Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease, stroke, and traumatic brain injuries. We also summarized drug and non-drug approaches to promote mitophagy and described their therapeutic role in neurological disorders in order to provide valuable insight into the potential therapeutic agents available for neurological disease treatment. However, most studies on mitophagy regulation are based on preclinical research using cell and animal models, which may not accurately reflect the effects in humans. This poses a challenge to the clinical application of drugs targeting mitophagy. Additionally, these drugs may carry the risk of intolerable side effects and toxicity. Future research should focus on the development of safer and more targeted drugs for mitophagy.
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Affiliation(s)
- Xiong Yang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yu Zhang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jia-Xin Luo
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Tao Zhu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Zhao Ran
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ben-Rong Mu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Mei-Hong Lu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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Morales-Carrizales DA, Gopar-Cuevas Y, Loera-Arias MDJ, Saucedo-Cardenas O, Montes de Oca-Luna R, Garcia-Garcia A, Rodriguez-Rocha H. A neuroprotective dose of trehalose is harmless to metabolic organs: comprehensive histopathological analysis of liver, pancreas, and kidney. Daru 2023; 31:135-144. [PMID: 37393413 PMCID: PMC10624785 DOI: 10.1007/s40199-023-00468-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/18/2023] [Indexed: 07/03/2023] Open
Abstract
BACKGROUND Trehalose is a non-reducing disaccharide synthesized by lower organisms. It has recently received special attention because of its neuroprotective properties by stimulating autophagy in Parkinson's disease (PD) models. Therefore, evaluating whether trehalose affects metabolic organs is vital to determine its neurotherapeutic safety. METHODS We validated the trehalose neuroprotective dosage in a PD model induced with intraperitoneal paraquat administration twice weekly for 7 weeks. One week before paraquat administration, mice were treated with trehalose in the drinking water and continued along with paraquat treatment. Histological and morphometrical analyses were conducted on the organs involved in trehalose metabolism, including the liver, pancreas, and kidney. RESULTS Paraquat-induced dopaminergic neuronal loss was significantly decreased by trehalose. After trehalose treatment, the liver morphology, the mononucleated/binucleated hepatocytes percentage, and sinusoidal diameter remained unchanged in each liver lobes. Endocrine and exocrine pancreas's histology was not affected, nor was any fibrotic process observed. The islet of Langerhans's structure was preserved when analyzing the area, the largest and smallest diameter, and circularity. Renal morphology remained undamaged, and no changes were identified within the glomerular basement membrane. The renal corpuscle structure did not suffer alterations in the Bowman's space, area, diameter, circularity, perimeter, and cellularity. Besides, the renal tubular structures's luminal area and internal and external diameter were preserved. CONCLUSION Our study demonstrates that systemic trehalose administration preserved the typical histological architecture of the organs involved in its metabolism, supporting its safety as a potential neuroprotective agent.
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Affiliation(s)
- Diego Armando Morales-Carrizales
- Departamento de Histologia, Universidad Autónoma de Nuevo Leon, Francisco I. Madero S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico
| | - Yareth Gopar-Cuevas
- Departamento de Histologia, Universidad Autónoma de Nuevo Leon, Francisco I. Madero S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico
| | - Maria de Jesus Loera-Arias
- Departamento de Histologia, Universidad Autónoma de Nuevo Leon, Francisco I. Madero S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico
| | - Odila Saucedo-Cardenas
- Departamento de Histologia, Universidad Autónoma de Nuevo Leon, Francisco I. Madero S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico
| | - Roberto Montes de Oca-Luna
- Departamento de Histologia, Universidad Autónoma de Nuevo Leon, Francisco I. Madero S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico
| | - Aracely Garcia-Garcia
- Departamento de Histologia, Universidad Autónoma de Nuevo Leon, Francisco I. Madero S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico.
| | - Humberto Rodriguez-Rocha
- Departamento de Histologia, Universidad Autónoma de Nuevo Leon, Francisco I. Madero S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico.
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Gopar-Cuevas Y, Saucedo-Cardenas O, Loera-Arias MJ, Montes-de-Oca-Luna R, Rodriguez-Rocha H, Garcia-Garcia A. Metformin and Trehalose-Modulated Autophagy Exerts a Neurotherapeutic Effect on Parkinson's Disease. Mol Neurobiol 2023; 60:7253-7273. [PMID: 37542649 DOI: 10.1007/s12035-023-03530-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/20/2023] [Indexed: 08/07/2023]
Abstract
Since the number of aged people will increase in the next years, neurodegenerative diseases, including Parkinson's Disease (PD), will also rise. Recently, we demonstrated that autophagy stimulation with rapamycin decreases dopaminergic neuronal death mediated by oxidative stress in the paraquat (PQ)-induced PD model. Assessing the neurotherapeutic efficacy of autophagy-inducing molecules is critical for preventing or delaying neurodegeneration. Therefore, we evaluated the autophagy inducers metformin and trehalose effect in a PD model. Autophagy induced by both molecules was confirmed in the SH-SY5Y dopaminergic cells by detecting increased LC3-II marker and autophagosome number compared to the control by western blot and transmission electron microscopy. Both autophagy inducers showed an antioxidant effect, improved mitochondrial activity, and decreased dopaminergic cell death induced by PQ. Next, we evaluated the effect of both inducers in vivo. C57BL6 mice were pretreated with metformin or trehalose before PQ administration. Cognitive and motor deteriorated functions in the PD model were evaluated through the nest building and the gait tests and were prevented by metformin and trehalose. Both autophagy inducers significantly reduced the dopaminergic neuronal loss, astrocytosis, and microgliosis induced by PQ. Also, cell death mediated by PQ was prevented by metformin and trehalose, assessed by TUNEL assay. Metformin and trehalose induced autophagy through AMPK phosphorylation and decreased α-synuclein accumulation. Therefore, metformin and trehalose are promising neurotherapeutic autophagy inducers with great potential for treating neurodegenerative diseases such as PD.
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Affiliation(s)
- Yareth Gopar-Cuevas
- Departamento de Histologia, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Francisco I. Madero S/N, 64460, Monterrey, Nuevo Leon, Mexico
| | - Odila Saucedo-Cardenas
- Departamento de Histologia, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Francisco I. Madero S/N, 64460, Monterrey, Nuevo Leon, Mexico
| | - Maria J Loera-Arias
- Departamento de Histologia, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Francisco I. Madero S/N, 64460, Monterrey, Nuevo Leon, Mexico
| | - Roberto Montes-de-Oca-Luna
- Departamento de Histologia, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Francisco I. Madero S/N, 64460, Monterrey, Nuevo Leon, Mexico
| | - Humberto Rodriguez-Rocha
- Departamento de Histologia, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Francisco I. Madero S/N, 64460, Monterrey, Nuevo Leon, Mexico.
| | - Aracely Garcia-Garcia
- Departamento de Histologia, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Francisco I. Madero S/N, 64460, Monterrey, Nuevo Leon, Mexico.
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15
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Yang X, Zeng D, Li C, Yu W, Xie G, Zhang Y, Lu W. Therapeutic potential and mechanism of functional oligosaccharides in inflammatory bowel disease: a review. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2023.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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16
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Xu B, He T, Yang H, Dai W, Liu L, Ma X, Ma J, Yang G, Si R, Du X, Fu X, Pei X. Activation of the p62-Keap1-Nrf2 pathway protects against oxidative stress and excessive autophagy in ovarian granulosa cells to attenuate DEHP-induced ovarian impairment in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 265:115534. [PMID: 37776821 DOI: 10.1016/j.ecoenv.2023.115534] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/24/2023] [Accepted: 09/26/2023] [Indexed: 10/02/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is widely used in various plastics but has been demonstrated to cause female reproductive toxicity. However, the exact mechanism underlying the ovarian damage induced by DEHP remains unclear. In this study, DEHP was administered orally to 5-week-old female mice for 30 days at doses of 0, 250, 500, and 1000 mg/kg/day. The findings demonstrated that DEHP exposure disrupted ovarian function and follicular development as well as induced oxidative stress and autophagy in ovarian granulosa cells (GCs). Further, 200 µM mono-(2-ethylhexyl) phthalate (MEHP), the primary metabolite of DEHP in vivo, induced autophagy in both human ovarian granulosa cells line (KGN) and mouse primary GCs within 24 h in vitro. However, it did not affect the p62-dependent autophagy flux. Furthermore, MEHP-induced autophagy was inhibited by the autophagy inhibitor 3-MA and exacerbated by the autophagy activator rapamycin, indicating that MEHP induces excessive autophagy in GCs. Subsequently, we found that MEHP-induced autophagic cell death was primarily attributed to oxidative damage from elevated intracellular ROS levels. Meanwhile, MEHP exposure induced nuclear translocation of erythroid-derived factor 2-related factor (Nrf2), a key regulator of antioxidant activity resulting in activating antioxidant effects. Interestingly, we also found that MEHP-induced increase in p62 competitively binds Keap1, thereby facilitating nuclear translocation of Nrf2 and establishing a positive feedback loop in antioxidant regulation. Therefore, this study demonstrated that inhibition of Nrf2 could aggravate oxidative damage and enhance excessive autophagy caused by MEHP, while activation of Nrf2 could reverse the trend. These findings have also been reinforced in studies of cultured ovaries in vitro. Our study suggests that the p62-Keap1-Nrf2 pathway may serve as a potential protective mechanism against DEHP-induced oxidative stress and excessive autophagy in mouse GCs.
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Affiliation(s)
- Bo Xu
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Tiantian He
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Hong Yang
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Wenjie Dai
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Ling Liu
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Xiaoqian Ma
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Jiaxue Ma
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Guoqin Yang
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Rui Si
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Xing Du
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China
| | - Xufeng Fu
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China.
| | - Xiuying Pei
- School of Basic Medical Science, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics of Ningxia Hui Autonomous Region, Ningxia Medical University, Yinchuan 750004, China.
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Chau KD, Shamekh M, Huisken J, Rehan SM. The effects of maternal care on the developmental transcriptome and metatranscriptome of a wild bee. Commun Biol 2023; 6:904. [PMID: 37709905 PMCID: PMC10502028 DOI: 10.1038/s42003-023-05275-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/22/2023] [Indexed: 09/16/2023] Open
Abstract
Maternal care acts as a strong environmental stimulus that can induce phenotypic plasticity in animals and may also alter their microbial communities through development. Here, we characterize the developmental metatranscriptome of the small carpenter bee, Ceratina calcarata, across developmental stages and in the presence or absence of mothers. Maternal care had the most influence during early development, with the greatest number and magnitude of differentially expressed genes between maternal care treatments, and enrichment for transcription factors regulating immune response in motherless early larvae. Metatranscriptomic data revealed fungi to be the most abundant group in the microbiome, with Aspergillus the most abundant in early larvae raised without mothers. Finally, integrative analysis between host transcriptome and metatranscriptome highlights several fungi correlating with developmental and immunity genes. Our results provide characterizations of the influence of maternal care on gene expression and the microbiome through development in a wild bee.
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Affiliation(s)
| | | | - Jesse Huisken
- Department of Biology, York University, Toronto, Canada
| | - Sandra M Rehan
- Department of Biology, York University, Toronto, Canada.
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18
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Shafiei B, Afgar A, Nematollahi MH, Shabani M, Nazari-Robati M. Effect of trehalose on miR-132 and SIRT1 in the hippocampus of aged rats. Neurosci Lett 2023; 813:137418. [PMID: 37549864 DOI: 10.1016/j.neulet.2023.137418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
Aging causes substantial molecular to morphological changes in the brain. The brain cells are more susceptible towards oxidative damage due to impaired antioxidant defense system. Sirtuin1 (SIRT1) is a crucial cellular survival protein, which its gene has been identified as a direct target of microRNA 132 (miR-132). Trehalose contributes to preventing neuronal damage through several mechanisms. However, little is known about the interactive effects of aging and trehalose on the expression pattern of miR-132 and SIRT1 in the hippocampus. Male Wistar rats were divided into four groups. Two groups of aged (24 months) and young (4 months) rats were administered 2% trehalose solution for 30 days. Two other groups of aged and young rats received regular tap water. At the end of treatment, the levels of Sirt1 mRNA and its protein, malondialdehyde, protein carbonyl content, total antioxidant capacity, tumor necrosis factor α (TNF-α), as well as the expression of miR-132 were measured in the hippocampus. We found that trehalose treatment upregulated the expression of SIRT1 and miR-132. Moreover, administration of trehalose enhanced the level of total antioxidant activity whereas reduced the levels of lipid peroxidation, protein carbonyl content, and TNF-α. In conclusion, our data indicated that trehalose restored antioxidant status and alleviated inflammation in the hippocampus which was probably associated with the upregulation of SIRT1 and miR-132.
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Affiliation(s)
- Bentolhoda Shafiei
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran; Department of Clinical Biochemistry, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Afgar
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Hadi Nematollahi
- Department of Clinical Biochemistry, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Shabani
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahdieh Nazari-Robati
- Department of Clinical Biochemistry, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
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19
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Willot Q, du Toit A, de Wet S, Huisamen EJ, Loos B, Terblanche JS. Exploring the connection between autophagy and heat-stress tolerance in Drosophila melanogaster. Proc Biol Sci 2023; 290:20231305. [PMID: 37700658 PMCID: PMC10498041 DOI: 10.1098/rspb.2023.1305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/16/2023] [Indexed: 09/14/2023] Open
Abstract
Mechanisms aimed at recovering from heat-induced damages are closely associated with the ability of ectotherms to survive exposure to stressful temperatures. Autophagy, a ubiquitous stress-responsive catabolic process, has recently gained renewed attention as one of these mechanisms. By increasing the turnover of cellular structures as well as the clearance of long-lived protein and protein aggregates, the induction of autophagy has been linked to increased tolerance to a range of abiotic stressors in diverse ectothermic organisms. However, whether a link between autophagy and heat-tolerance exists in insect models remains unclear despite broad ecophysiological implications thereof. Here, we explored the putative association between autophagy and heat-tolerance using Drosophila melanogaster as a model. We hypothesized that (i) heat-stress would cause an increase of autophagy in flies' tissues, and (ii) rapamycin exposure would trigger a detectable autophagic response in adults and increase their heat-tolerance. In line with our hypothesis, we report that flies exposed to heat-stress present signs of protein aggregation and appear to trigger an autophagy-related homoeostatic response as a result. We further show that rapamycin feeding causes the systemic effect associated with target of rapamycin (TOR) inhibition, induces autophagy locally in the fly gut, and increases the heat-stress tolerance of individuals. These results argue in favour of a substantial contribution of autophagy to the heat-stress tolerance mechanisms of insects.
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Affiliation(s)
- Quentin Willot
- Centre for Invasion Biology, Department of Conservation Ecology & Entomology, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Andre du Toit
- Department of Physiological Sciences, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Sholto de Wet
- Department of Physiological Sciences, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Elizabeth J. Huisamen
- Centre for Invasion Biology, Department of Conservation Ecology & Entomology, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Ben Loos
- Department of Physiological Sciences, Stellenbosch University, Stellenbosch 7600, South Africa
| | - John S. Terblanche
- Centre for Invasion Biology, Department of Conservation Ecology & Entomology, Stellenbosch University, Stellenbosch 7600, South Africa
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20
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Zhang S, Qiu X, Zhang Y, Huang C, Lin D. Metabolomic Analysis of Trehalose Alleviating Oxidative Stress in Myoblasts. Int J Mol Sci 2023; 24:13346. [PMID: 37686153 PMCID: PMC10488301 DOI: 10.3390/ijms241713346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/10/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Trehalose, a naturally occurring non-toxic disaccharide, has attracted considerable attention for its potential in alleviating oxidative stress in skeletal muscle. In this study, our aim was to elucidate the metabolic mechanisms underlying the protective effects of trehalose against hydrogen peroxide (H2O2)-induced oxidative stress in C2C12 myoblasts. Our results show that both trehalose treatment and pretreatment effectively alleviate the H2O2-induced decrease in cell viability, reduce intracellular reactive oxygen species (ROS), and attenuate lipid peroxidation. Furthermore, using NMR-based metabolomics analysis, we observed that trehalose treatment and pretreatment modulate the metabolic profile of myoblasts, specifically regulating oxidant metabolism and amino acid metabolism, contributing to their protective effects against oxidative stress. Importantly, our results reveal that trehalose treatment and pretreatment upregulate the expression levels of P62 and Nrf2 proteins, thereby activating the Nrf2-NQO1 axis and effectively reducing oxidative stress. These significant findings highlight the potential of trehalose supplementation as a promising and effective strategy for alleviating oxidative stress in skeletal muscle and provide valuable insights into its potential therapeutic applications.
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Affiliation(s)
- Shuya Zhang
- Key Laboratory of Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; (S.Z.); (X.Q.); (Y.Z.)
| | - Xu Qiu
- Key Laboratory of Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; (S.Z.); (X.Q.); (Y.Z.)
| | - Yue Zhang
- Key Laboratory of Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; (S.Z.); (X.Q.); (Y.Z.)
| | - Caihua Huang
- Research and Communication Center of Exercise and Health, Xiamen University of Technology, Xiamen 361021, China;
| | - Donghai Lin
- Key Laboratory of Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; (S.Z.); (X.Q.); (Y.Z.)
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21
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Larcombe DE, Bohovych IM, Pradhan A, Ma Q, Hickey E, Leaves I, Cameron G, Avelar GM, de Assis LJ, Childers DS, Bain JM, Lagree K, Mitchell AP, Netea MG, Erwig LP, Gow NAR, Brown AJP. Glucose-enhanced oxidative stress resistance-A protective anticipatory response that enhances the fitness of Candida albicans during systemic infection. PLoS Pathog 2023; 19:e1011505. [PMID: 37428810 PMCID: PMC10358912 DOI: 10.1371/journal.ppat.1011505] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 07/20/2023] [Accepted: 06/22/2023] [Indexed: 07/12/2023] Open
Abstract
Most microbes have developed responses that protect them against stresses relevant to their niches. Some that inhabit reasonably predictable environments have evolved anticipatory responses that protect against impending stresses that are likely to be encountered in their niches-termed "adaptive prediction". Unlike yeasts such as Saccharomyces cerevisiae, Kluyveromyces lactis and Yarrowia lipolytica and other pathogenic Candida species we examined, the major fungal pathogen of humans, Candida albicans, activates an oxidative stress response following exposure to physiological glucose levels before an oxidative stress is even encountered. Why? Using competition assays with isogenic barcoded strains, we show that "glucose-enhanced oxidative stress resistance" phenotype enhances the fitness of C. albicans during neutrophil attack and during systemic infection in mice. This anticipatory response is dependent on glucose signalling rather than glucose metabolism. Our analysis of C. albicans signalling mutants reveals that the phenotype is not dependent on the sugar receptor repressor pathway, but is modulated by the glucose repression pathway and down-regulated by the cyclic AMP-protein kinase A pathway. Changes in catalase or glutathione levels do not correlate with the phenotype, but resistance to hydrogen peroxide is dependent on glucose-enhanced trehalose accumulation. The data suggest that the evolution of this anticipatory response has involved the recruitment of conserved signalling pathways and downstream cellular responses, and that this phenotype protects C. albicans from innate immune killing, thereby promoting the fitness of C. albicans in host niches.
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Affiliation(s)
- Daniel E. Larcombe
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
- Medical Research Council Centre for Medical Mycology, University of Exeter, School of Biosciences, Geoffrey Pope Building, Exeter, United Kingdom
| | - Iryna M. Bohovych
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Arnab Pradhan
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
- Medical Research Council Centre for Medical Mycology, University of Exeter, School of Biosciences, Geoffrey Pope Building, Exeter, United Kingdom
| | - Qinxi Ma
- Medical Research Council Centre for Medical Mycology, University of Exeter, School of Biosciences, Geoffrey Pope Building, Exeter, United Kingdom
| | - Emer Hickey
- Medical Research Council Centre for Medical Mycology, University of Exeter, School of Biosciences, Geoffrey Pope Building, Exeter, United Kingdom
| | - Ian Leaves
- Medical Research Council Centre for Medical Mycology, University of Exeter, School of Biosciences, Geoffrey Pope Building, Exeter, United Kingdom
| | - Gary Cameron
- Rowett Institute, School of Medicine Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Gabriela M. Avelar
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Leandro J. de Assis
- Medical Research Council Centre for Medical Mycology, University of Exeter, School of Biosciences, Geoffrey Pope Building, Exeter, United Kingdom
| | - Delma S. Childers
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Judith M. Bain
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Katherine Lagree
- Department of Microbiology, Biosciences Building, University of Georgia, Athens, Georgia, United States of America
| | - Aaron P. Mitchell
- Department of Microbiology, Biosciences Building, University of Georgia, Athens, Georgia, United States of America
| | - Mihai G. Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
- Department for Immunology & Metabolism, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Lars P. Erwig
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
- Johnson-Johnson Innovation, EMEA Innovation Centre, One Chapel Place, London, United Kingdom
| | - Neil A. R. Gow
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
- Medical Research Council Centre for Medical Mycology, University of Exeter, School of Biosciences, Geoffrey Pope Building, Exeter, United Kingdom
| | - Alistair J. P. Brown
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
- Medical Research Council Centre for Medical Mycology, University of Exeter, School of Biosciences, Geoffrey Pope Building, Exeter, United Kingdom
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22
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Yap KH, Azmin S, Makpol S, Damanhuri HA, Mustapha M, Hamzah JC, Ibrahim NM. Profiling neuroprotective potential of trehalose in animal models of neurodegenerative diseases: a systematic review. Neural Regen Res 2023; 18:1179-1185. [PMID: 36453391 PMCID: PMC9838167 DOI: 10.4103/1673-5374.360164] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/24/2022] [Accepted: 10/13/2022] [Indexed: 11/27/2022] Open
Abstract
Trehalose, a unique nonreducing crystalline disaccharide, is a potential disease-modifying treatment for neurodegenerative diseases associated with protein misfolding and aggregation due to aging, intrinsic mutations, or autophagy dysregulation. This systematic review summarizes the effects of trehalose on its underlying mechanisms in animal models of selected neurodegenerative disorders (tau pathology, synucleinopathy, polyglutamine tract, and motor neuron diseases). All animal studies on neurodegenerative diseases treated with trehalose published in Medline (accessed via EBSCOhost) and Scopus were considered. Of the 2259 studies screened, 29 met the eligibility criteria. According to the SYstematic Review Center for Laboratory Animal Experiment (SYRCLE) risk of bias tool, we reported 22 out of 29 studies with a high risk of bias. The present findings support the purported role of trehalose in autophagic flux and protein refolding. This review identified several other lesser-known pathways, including modifying amyloid precursor protein processing, inhibition of reactive gliosis, the integrity of the blood-brain barrier, activation of growth factors, upregulation of the downstream antioxidant signaling pathway, and protection against mitochondrial defects. The absence of adverse events and improvements in the outcome parameters were observed in some studies, which supports the transition to human clinical trials. It is possible to conclude that trehalose exerts its neuroprotective effects through both direct and indirect pathways. However, heterogeneous methodologies and outcome measures across the studies rendered it impossible to derive a definitive conclusion. Translational studies on trehalose would need to clarify three important questions: 1) bioavailability with oral administration, 2) optimal time window to confer neuroprotective benefits, and 3) optimal dosage to confer neuroprotection.
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Affiliation(s)
- Kah Hui Yap
- Department of Medicine, UKM Medical Centre, Kuala Lumpur, Malaysia
| | - Shahrul Azmin
- Department of Medicine, UKM Medical Centre, Kuala Lumpur, Malaysia
| | - Suzana Makpol
- Department of Biochemistry, UKM Medical Centre, Kuala Lumpur, Malaysia
| | | | - Muzaimi Mustapha
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
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23
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Ayilam Ramachandran R, Sanches JM, Robertson DM. The roles of autophagy and mitophagy in corneal pathology: current knowledge and future perspectives. Front Med (Lausanne) 2023; 10:1064938. [PMID: 37153108 PMCID: PMC10160402 DOI: 10.3389/fmed.2023.1064938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 01/16/2023] [Indexed: 05/09/2023] Open
Abstract
The cornea is the clear dome that covers the front portion of the globe. The primary functions of the cornea are to promote the refraction of light and to protect the eye from invading pathogens, both of which are essential for the preservation of vision. Homeostasis of each cellular layer of the cornea requires the orchestration of multiple processes, including the ability to respond to stress. One mechanism whereby cells respond to stress is autophagy, or the process of "self-eating." Autophagy functions to clear damaged proteins and organelles. During nutrient deprivation, amino acids released from protein breakdown via autophagy are used as a fuel source. Mitophagy, a selective form of autophagy, functions to clear damaged mitochondria. Thus, autophagy and mitophagy are important intracellular degradative processes that sustain tissue homeostasis. Importantly, the inhibition or excessive activation of these processes result in deleterious effects on the cell. In the eye, impairment or inhibition of these mechanisms have been associated with corneal disease, degenerations, and dystrophies. This review summarizes the current body of knowledge on autophagy and mitophagy at all layers in the cornea in both non-infectious and infectious corneal disease, dystrophies, and degenerations. It further highlights the critical gaps in our understanding of mitochondrial dysfunction, with implications for novel therapeutics in clinical practice.
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Affiliation(s)
| | - Jose Marcos Sanches
- Department of Ophthalmology, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Danielle M Robertson
- Department of Ophthalmology, The University of Texas Southwestern Medical Center, Dallas, TX, United States
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24
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Sangkaew O, Prombutara P, Roytrakul S, Yompakdee C. Metatranscriptomics Reveals Sequential Expression of Genes Involved in the Production of Melanogenesis Inhibitors by the Defined Microbial Species in Fermented Unpolished Black Rice. Microbiol Spectr 2023; 11:e0313922. [PMID: 36861996 PMCID: PMC10100879 DOI: 10.1128/spectrum.03139-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 01/30/2023] [Indexed: 03/03/2023] Open
Abstract
Fermented products require metabolic enzymes from the microbial community for desired final products. Using a metatranscriptomic approach, the role of microorganisms in fermented products on producing compounds with a melanogenesis inhibition activity has not yet been reported. Previously, unpolished black rice (UBR) fermented with the E11 starter containing Saccharomyces cerevisiae, Saccharomycopsis fibuligera, Rhizopus oryzae, and Pediococcus pentosaceus (FUBR) showed potent melanogenesis inhibition activity. This study aimed to investigate the function of these defined microbial species in producing melanogenesis inhibitors in the FUBR using a metatranscriptomic approach. The melanogenesis inhibition activity increased in a fermentation time-dependent manner. Genes related to melanogenesis inhibitors synthesis such as carbohydrate metabolism, amino acids synthesis, fatty acids/unsaturated fatty acids synthesis, and carbohydrate transporters were analyzed. Most genes from R. oryzae and P. pentosaceus were upregulated in the early stage of the fermentation process, while those of S. cerevisiae and S. fibuligera were upregulated in the late stage. FUBR production using different combinations of the four microbial species shows that all species were required to produce the highest activity. The FUBR containing at least R. oryzae and/or P. pentosaceus exhibited a certain level of activity. These findings were in agreement with the metatranscriptomic results. Overall, the results suggested that all four species sequentially and/or coordinately synthesized metabolites during the fermentation that led to a FUBR with maximum melanogenesis inhibition activity. This study not only sheds light on crucial functions of certain microbial community on producing the melanogenesis inhibitors, but also paves the way to initiate quality improvement of melanogenesis inhibition activity in the FUBR. IMPORTANCE Fermentation of food is a metabolic process through the action of enzymes from certain microorganisms. Although roles of the microbial community in the fermented food were investigated using metatranscriptomic approach in terms of flavors, but no study has been reported so far on the function of the microorganisms on producing compounds with a melanogenesis inhibition activity. Therefore, this study explained the roles of the defined microorganisms from the selected starter in the fermented unpolished black rice (FUBR) that can produce melanogenesis inhibitor(s) using metatranscriptomic analysis. Genes from different species were upregulated at different fermentation time. All four microbial species in the FUBR sequentially and/or coordinately synthesized metabolites during fermentation that led to a FUBR with maximal melanogenesis inhibition activity. This finding contributes to a deeper understanding of the roles of certain microbial community during fermentation and led to the knowledge-based improvement for the fermented rice with potent melanogenesis inhibition activity.
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Affiliation(s)
- Orrarat Sangkaew
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
| | - Pinidphon Prombutara
- Omics Science & Bioinformatics Center, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
| | - Sittiruk Roytrakul
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Klong Luang, Pathumthani, Thailand
| | - Chulee Yompakdee
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
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25
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Wu J, Hou S, Yang L, Wang Y, Wen C, Guo Y, Luo S, Fang H, Jiao H, Xu H, Zhang S. P62/SQSTM1 upregulates NQO1 transcription via Nrf2/Keap1a signaling pathway to resist microcystins-induced oxidative stress in freshwater mussel Cristaria plicata. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 255:106398. [PMID: 36669434 DOI: 10.1016/j.aquatox.2023.106398] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
Microcystins (MCs) are the most frequent and widely distributed type of cyanotoxin in aquatic systems, and they cause an imbalance of the body's oxidative system. In a previous experiment, we demonstrated that the mollusk Cristaria plicata can protect against MC-induced oxidative damage through the nuclear factor erythroid 2-related factor 2(Nrf2)/Kelch-like epichlorohydrin-related protein-1 (Keap1) pathway. Here, we evaluated whether selective autophagy affects the Nrf2/Keap1a anti-oxidative stress pathway in C. plicata. Full-length cDNA sequences of p62/SQSTM1 from C. plicata (Cpp62) were divided into 2484 bp fragments. From N-terminal to C-terminal, the amino acid sequence of Cpp62 contained PB1 (Phox and Bem1p domain), ZNF (zinc finger domain) chain, LIR (LC3 interacting region) and UBA (ubiquitin-associated domain) domains, but not the KIR (Keap1 interacting region) domain. We confirmed that Cpp62 did not bind to CpKeap1a in vitro, and the relative level of Cpp62 was the highest in the hepatopancreas. Moreover, MCs significantly upregulated the mRNA and protein levels of Cpp62 in the hepatopancreas after CpKeap1a knockdown, whereas Nrf2 upregulated the transcription levels of Cpp62, suggesting that MCs increased Cpp62 expression via the Nrf2/Keap1a signaling pathway. Moreover, Cpp62 and CpNrf2 proteins have a strong affinity for the NQO1 promoter, but MCs inhibited the ability of CpNrf2 and Cpp62 to upregulate luciferase activity. The results show that Nrf2 and the p62 protein induced p62 expression by binding to ARE (antioxidant response element) sequences in the p62 promoter of C. plicata, thereby promoting p62 to resist MC-induced oxidative stress. Therefore, we speculate that MCs induce p62-dependent autophagy in C. plicata, resulting in the inhibition of Nrf2 transcription and Cpp62 promoter activity. These findings help to reveal the mechanism by which the p62-Nrf2/Keap1 pathway mitigates MC-induced oxidative damage in mussels.
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Affiliation(s)
- Jielian Wu
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China.
| | - Shumin Hou
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China
| | - Lang Yang
- Nanchang University, Nanchang 330031, China
| | - Yanrui Wang
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China
| | - Chungen Wen
- Nanchang University, Nanchang 330031, China.
| | - Yuping Guo
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China
| | - Shanshan Luo
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China
| | - Haihong Fang
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China
| | - He Jiao
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China
| | - Hui Xu
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China
| | - Shuangping Zhang
- Science & Technology Normal University of Jiangxi, Nanchang 330013, China
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26
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Radbakhsh S, Mobini M, Gumpricht E, Banach M, Jamialahmadi T, Sahebkar A. The effect of intravenous trehalose administration in a patient with multiple sulfatase deficiency. Arch Med Sci 2023; 19:1564-1568. [PMID: 37732042 PMCID: PMC10507772 DOI: 10.5114/aoms/159711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 01/23/2023] [Indexed: 09/22/2023] Open
Abstract
Introduction We describe the case of a female child with multiple sulfatase deficiency (MSD) who received intravenous (IV) trehalose (15 g/week) for 3 months. Methods The efficacy of trehalose was evaluated by comparing serum biomarkers, a quality-of-life questionnaire (HRQoL), and imaging (brain MRI and ultrasonography of liver and spleen) at weeks 0 (W0) and 12 (W12). Results The improvement in quality of life assessments along with a slight decrease in the spleen dimensions were observed after 3-month intervention. Conclusions Future research with a larger MSD population and a longer-term follow-up is warranted to determine whether trehalose can improve MSD patient health and clinical outcomes.
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Affiliation(s)
- Shabnam Radbakhsh
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Moein Mobini
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Maciej Banach
- Cardiovascular Research Centre, University of Zielona Gora, Zielona Gora, Poland
| | - Tannaz Jamialahmadi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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27
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Antioxidant Properties, Bioactive Compounds Contents, and Chemical Characterization of Two Wild Edible Mushroom Species from Morocco: Paralepista flaccida (Sowerby) Vizzini and Lepista nuda (Bull.) Cooke. Molecules 2023; 28:molecules28031123. [PMID: 36770790 PMCID: PMC9920256 DOI: 10.3390/molecules28031123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/11/2023] [Accepted: 01/19/2023] [Indexed: 01/27/2023] Open
Abstract
Mushrooms have been consumed for centuries and have recently gained more popularity as an important source of nutritional and pharmaceutical compounds. As part of the valorization of mushroom species in northern Morocco, the current study aimed to investigate the chemical compositions and antioxidant properties of two wild edible mushrooms, Paralepista flaccida and Lepista nuda. Herein, the bioactive compounds were determined using spectrophotometer methods, and results showed that the value of total phenolic content (TPC) was found to be higher in P. flaccida (32.86 ± 0.52 mg) than in L. nuda (25.52 ± 0.56 mg of gallic acid equivalents (GAEs)/mg of dry methanolic extract (dme)). On the other hand, the value of total flavonoid content (TFC) was greater in L. nuda than in P. flaccida, with values of 19.02 ± 0.80 and 10.34 ± 0.60 mg of (+)-catechin equivalents (CEs)/g dme, respectively. Moreover, the ascorbic acid, tannin, and carotenoids content was moderate, with a non-significant difference between the two samples. High-performance liquid chromatography-mass spectrometry (HPLC-MS) analysis allowed the identification and quantification of thirteen individual phenolic compounds in both P. flaccida and L. nuda, whereas p-Hydroxybenzoic acid was recognized as the major compound detected, with values of 138.50 ± 1.58 and 587.90 ± 4.89 µg/g of dry weight (dw), respectively. The gas chromatography-mass spectrometry (GC-MS) analysis of methanolic extracts of P. flaccida and L. nuda revealed the presence of sixty-one and sixty-six biomolecules, respectively. These biomolecules can mainly be divided into four main groups, namely sugars, amino acids, fatty acids, and organic acids. Moreover, glycerol (12.42%) and mannitol (10.39%) were observed to be the main chemical compositions of P. flaccida, while L. nuda was predominated by linolelaidic acid (21.13%) and leucine (9.05%). L. nuda showed a strong antioxidant property, evaluated by DPPH (half maximal effective concentration (EC50) 1.18-0.98 mg/mL); β-carotene bleaching (EC50 0.22-0.39 mg/mL); and reducing power methods (EC50 0.63-0.48 mg/mL), respectively. These findings suggested that both mushrooms are potential sources of various biomolecules, many of which possess important biological activities which are interesting for the foods and pharmaceuticals industry.
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Zhang L, Guo K, Tian Q, Ye J, Ding Z, Zhou Q, Li X, Zhou Z, Yang L. Serum Metabolomics Reveals a Potential Benefit of Methionine in Type 1 Diabetes Patients with Poor Glycemic Control and High Glycemic Variability. Nutrients 2023; 15:nu15030518. [PMID: 36771224 PMCID: PMC9921163 DOI: 10.3390/nu15030518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Glycemic variability (GV) in some patients with type 1 diabetes (T1D) remains heterogeneous despite comparable clinical indicators, and whether other factors are involved is yet unknown. Metabolites in the serum indicate a broad effect of GV on cellular metabolism and therefore are more likely to indicate metabolic dysregulation associated with T1D. To compare the metabolomic profiles between high GV (GV-H, coefficient of variation (CV) of glucose ≥ 36%) and low GV (GV-L, CV < 36%) groups and to identify potential GV biomarkers, metabolomics profiling was carried out on serum samples from 17 patients with high GV, 16 matched (for age, sex, body mass index (BMI), diabetes duration, insulin dose, glycated hemoglobin (HbA1c), fasting, and 2 h postprandial C-peptide) patients with low GV (exploratory set), and another 21 (GV-H/GV-L: 11/10) matched patients (validation set). Subsequently, 25 metabolites were significantly enriched in seven Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways between the GV-H and GV-L groups in the exploratory set. Only the differences in spermidine, L-methionine, and trehalose remained significant after validation. The area under the curve of these three metabolites combined in distinguishing GV-H from GV-L was 0.952 and 0.918 in the exploratory and validation sets, respectively. L-methionine was significantly inversely related to HbA1c and glucose CV, while spermidine was significantly positively associated with glucose CV. Differences in trehalose were not as reliable as those in spermidine and L-methionine because of the relatively low amounts of trehalose and the inconsistent fold change sizes in the exploratory and validation sets. Our findings suggest that metabolomic disturbances may impact the GV of T1D. Additional in vitro and in vivo mechanistic studies are required to elucidate the relationship between spermidine and L-methionine levels and GV in T1D patients with different geographical and nutritional backgrounds.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Lin Yang
- Correspondence: ; Tel.: +86-731-8529-2154
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Wijesundera SA, Liyanage SH, Biswas P, Reuther JF, Yan M. Trehalose-Grafted Glycopolymer: Synthesis via the Staudinger Reaction and Capture of Mycobacteria. Biomacromolecules 2023; 24:238-245. [PMID: 36524824 DOI: 10.1021/acs.biomac.2c01096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A new trehalose-grafted poly(2-hydroxyethyl methacrylate) (HEMA) glycopolymer was synthesized via the perfluorophenyl azide (PFPA)-mediated Staudinger reaction between poly(HEMA-co-HEMA-PFPA) and a diphenylphosphine-derivatized trehalose. The reaction occurred rapidly at room temperature without the use of any catalyst, giving the trehalose glycopolymers over 68% yield after 1 h. The grafting density of trehalose can be controlled by the copolymer composition in poly(HEMA-co-HEMA-PFPA), resulting in 6.1% (TP1) or 37% (TP2) at 10:1 and 1:1 HEMA/HEMA-PFPA feed ratio, respectively. The trehalose glycopolymer was covalently attached on glass slides or silicon wafers using a thin film of poly(HEMA-co-HEMA-PFPA) as the adhesion layer, achieved through the C-H insertion reaction of the photogenerated singlet perfluorophenyl nitrene. To demonstrate the ability of the trehalose glycopolymer to capture mycobacteria, arrays of the trehalose glycopolymer were fabricated and treated with Mycobacterium smegmatis. Results from the optical, fluorescence, and scanning electron microscopy showed that mycobacteria were indeed captured on the trehalose glycopolymer. The amount of mycobacteria captured increased with the percent trehalose in the trehalose glycopolymer and also with the concentration of the trehalose glycopolymer. In addition, the captured bacteria could be visualized by the naked eye under the illumination of a hand-held UV lamp.
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Affiliation(s)
- Samurdhi A Wijesundera
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Sajani H Liyanage
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Priyanka Biswas
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - James F Reuther
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Mingdi Yan
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
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Li X, Ma W, Jiang Y. Honeybees (Hymenoptera: Apidae) Adapt to the Shock of High Temperature and High Humidity Through Changes in Sugars and Polyols and Free Amino Acids. JOURNAL OF INSECT SCIENCE (ONLINE) 2023; 23:4. [PMID: 36695003 PMCID: PMC9874260 DOI: 10.1093/jisesa/iead002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Indexed: 06/17/2023]
Abstract
Temperature and humidity are important factors affecting the honeybees physiological metabolism. When honeybees are stressed by high temperature and high humidity, various physiological stress mechanisms evolved by bees are activated in response to injury. The accumulation of some sugars, polyols, and free amino acids can effectively protect cell structure stability and resist temperature stress. In this study, the changes of glucose, trehalose, cholesterol, sorbitol, sorbitol dehydrogenase, mannitol, and free amino acids content of worker honeybees [Apis cerana cerana Fabricius and Apis mellifera Ligustica (Hymenoptera: Apidae)] under different temperature and humidity conditions were measured. Our research results show that high temperature has an important impact on the metabolism of honeybees. Heat stress can cause the accumulation of various antistress substances in worker. The contents of sugars, polyols, and some free amino acids accumulated in high temperature were significantly higher than those in the control, while the influence of high humidity was less. Although high humidity was improved compared with the control, the difference was not obvious. It provides a theoretical basis for exploring the physiological mechanism of individual heat resistance of honeybees.
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Affiliation(s)
- Xinyu Li
- Shandong Vocational College of Light Industry, Zibo, Shandong Province, China
| | - Weihua Ma
- College of Horticulture, Shanxi Agricultural University, Taiyuan, Shanxi Province, China
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Role of Nrf2 in aging, Alzheimer's and other neurodegenerative diseases. Ageing Res Rev 2022; 82:101756. [PMID: 36243357 DOI: 10.1016/j.arr.2022.101756] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/14/2022] [Accepted: 10/09/2022] [Indexed: 01/31/2023]
Abstract
Nuclear Factor-Erythroid Factor 2 (Nrf2) is an important transcription factor that regulates the expression of large number of genes in healthy and disease states. Nrf2 is made up of 605 amino acids and contains 7 conserved regions known as Nrf2-ECH homology domains. Nrf2 regulates the expression of several key components of oxidative stress, mitochondrial biogenesis, mitophagy, autophagy and mitochondrial function in all organs of the human body, in the peripheral and central nervous systems. Mounting evidence also suggests that altered expression of Nrf2 is largely involved in aging, neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, Huntington's diseases, Amyotrophic lateral sclerosis, Stroke, Multiple sclerosis and others. The purpose of this article is to detail the essential role of Nrf2 in oxidative stress, antioxidative defense, detoxification, inflammatory responses, transcription factors, proteasomal and autophagic/mitophagic degradation, and metabolism in aging and neurodegenerative diseases. This article also highlights the Nrf2 structural and functional activities in healthy and disease states, and also discusses the current status of Nrf2 research and therapeutic strategies to treat aging and neurodegenerative diseases.
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Kim SH, Singh D, Son SY, Lee S, Suh DH, Lee NR, Park GS, Kang J, Lee CH. Characterization and temporal dynamics of the intra- and extracellular environments of Lactiplantibacillus plantarum using multi-platform metabolomics. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Johnston N, Cline G, Strobel SA. Cells Adapt to Resist Fluoride through Metabolic Deactivation and Intracellular Acidification. Chem Res Toxicol 2022; 35:2085-2096. [PMID: 36282204 PMCID: PMC9683101 DOI: 10.1021/acs.chemrestox.2c00222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Indexed: 01/09/2023]
Abstract
Fluoride is highly abundant in the environment. Many organisms have adapted specific defense mechanisms against high concentrations of fluoride, including the expression of proteins capable of removing fluoride from cells. However, these fluoride transporters have not been identified in all organisms, and even organisms that express fluoride transporters vary in tolerance capabilities across species, individuals, and even tissue types. This suggests that alternative factors influence fluoride tolerance. We screened for adaptation against fluoride toxicity through an unbiased mutagenesis assay conducted on Saccharomyces cerevisiae lacking the fluoride exporter FEX, the primary mechanism of fluoride resistance. Over 80 independent fluoride-hardened strains were generated, with anywhere from 100- to 1200-fold increased fluoride tolerance compared to the original strain. The whole genome of each mutant strain was sequenced and compared to the wild type. The fluoride-hardened strains utilized a combination of phenotypes that individually conferred fluoride tolerance. These included intracellular acidification, cellular dormancy, nutrient storage, and a communal behavior reminiscent of flocculation. Of particular importance to fluoride resistance was intracellular acidification, which served to reverse the accumulation of fluoride and lead to its excretion from the cell as HF without the activity of a fluoride-specific protein transporter. This transport mechanism was also observed in wild-type yeast through a manual mutation to lower their cytoplasmic pH. The results demonstrate that the yeast developed a protein-free adaptation for removing an intracellular toxicant.
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Affiliation(s)
- Nichole
R. Johnston
- Department
of Molecular Biophysics and Biochemistry, Yale University, New Haven 06477, Connecticut, United States
| | - Gary Cline
- Department
of Internal Medicine, Yale School of Medicine, New Haven 06510, Connecticut, United States
| | - Scott A. Strobel
- Department
of Molecular Biophysics and Biochemistry, Yale University, New Haven 06477, Connecticut, United States
- Department
of Chemistry, Yale University, New Haven 06477, Connecticut, United States
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Hedysarum Polysaccharide Alleviates Oxidative Stress to Protect Against Diabetic Peripheral Neuropathy via Modulation of the Keap1/Nrf2 signaling pathway. J Chem Neuroanat 2022; 126:102182. [DOI: 10.1016/j.jchemneu.2022.102182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
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Trehalose prevents glyphosate-induced hepatic steatosis in roosters by activating the Nrf2 pathway and inhibiting NLRP3 inflammasome activation. Vet Res Commun 2022; 47:651-661. [PMID: 36261742 DOI: 10.1007/s11259-022-10021-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/13/2022] [Indexed: 10/24/2022]
Abstract
Glyphosate (Gly) is a globally spread herbicide that can cause toxic injuries to hepatocytes. Dietary trehalose (Tre) exerts cytoprotective effect in numerous liver diseases through anti-oxidant and anti-inflammatory properties. However, it is yet to be investigated whether Tre affords protection against Gly-induced hepatotoxicity. To evaluate the negative effect of Gly in liver and assess the possible protective role of Tre, sixty Hy-line Brown roosters were allocated into three groups: the first group presented the control with a normal diet, the second group fed normal feed containing 200mg/kg Gly, and the third group fed normal feed containing 200 mg/kg Gly and 5 g/kg Tre. Plasma and liver tissues were collected and analyzed after 120 days. Firstly, Gly-elevated serum levels of hepatic injury markers and liver histopathological damages were evidently alleviated by Tre administration. Also, Tre normalized Gly-altered serum and hepatic lipid profiles and Oil Red O-stained lipid levels, suggesting the improvement of hepatic steatosis. The severely accumulated malondialdehyde levels and impaired antioxidant status in Gly-exposed roosters were markedly improved by administration with Tre. Simultaneously, Gly-inhibited nuclear factor erythroid 2-related factor 2 (Nrf2) level and consequent reduced levels of Nrf2-downstream targets in liver were markedly normalized by Tre treatment. Additionally, Tre treatment evidently mitigated Gly-induced inflammasome response via inhibiting NLRP3 inflammasome activation. Overall, these observations provide novel insights that the protective action of Tre against Gly-induced hepatic steatosis is attributed to activation of Nrf2 pathway and inhibition of NLRP3 inflammasome activation.
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Chen K, Liu JB, Tie CZ, Wang L. Trehalose prevents glyphosate-induced testicular damage in roosters via its antioxidative properties. Res Vet Sci 2022; 152:314-322. [PMID: 36084373 DOI: 10.1016/j.rvsc.2022.08.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 08/16/2022] [Accepted: 08/30/2022] [Indexed: 10/14/2022]
Abstract
Glyphosate (GLY), an active ingredient of the most commonly used herbicide, when in crops and feed, is deleterious to male reproductive health. Trehalose (Tre), a naturally non-reducing disaccharide, is shown to counteract the adverse stresses due to its antioxidation effect. Thus, this study was designed to investigate whether Tre can improve GLY-induced testicular damage via suppressing oxidative stress. 60 healthy Hy-Line Brown breeder roosters were utilized to assess the protective effects of Tre supplementation against testicular oxidative damage caused by GLY. Data showed that Tre administration significantly alleviated GLY- induced reduction in testis weight, decreased GLY level in the testis tissues, and alleviated GLY-caused testicular pathological damage. Concurrently, GLY treatment significantly elevated serum malondialdehyde (MDA) and testicular reactive oxygen species (ROS) levels, decreased serum total anti-oxidation capacity (T-AOC), catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) levels, which were all notably reversed by Tre administration. Moreover, GLY- inhibited nuclear factor erythroid 2-related factor 2 (Nrf2) pathway in rooster testis, a master regulator of oxidative stress, was markedly recovered by Tre administration. In summary, these findings demonstrated that Tre can prevent GLY-induced testicular damage in roosters by ameliorating oxidative stress.
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Affiliation(s)
- Kai Chen
- New Drug Evaluation Center of Shandong Academy of Pharmaceutical Sciences, Shandong Academy of Pharmaceutical Sciences, 989 Xinluo Street, Ji'nan City 250101, Shandong Province, China; Shandong Technology Innovation Center of Artificial Phage Drug, 989 Xinluo Street, Ji'nan City 250101, Shandong Province, China
| | - Jing-Bo Liu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Cheng-Zhu Tie
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Lin Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China.
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Learning and memory impairment and transcriptomic profile in hippocampus of offspring after maternal fructose exposure during gestation and lactation. Food Chem Toxicol 2022; 169:113394. [PMID: 36049592 DOI: 10.1016/j.fct.2022.113394] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 08/06/2022] [Accepted: 08/24/2022] [Indexed: 11/22/2022]
Abstract
Increased fructose intake is a global issue, especially in mothers. Maternal fructose exposure during gestation and lactation can affect learning and memory in offspring; however, the detailed mechanism is still unknown. The hippocampus is a mind locale liable for learning and memory. Here, we established a maternal high-fructose diet model by administering 13% and 40% fructose water, applied the Morris Water Maze test on postnatal day 60 offspring, and performed full-length RNA sequencing using the Oxford Nanopore Technologies platform to explore the changes in gene expression in the hippocampus. The results showed that learning and memory in offspring were negatively affected. Compared with the control group, 369 differentially expressed transcripts (DETs) were identified in the 13% fructose group, and 501 DETs were identified in the 40% fructose group. Gene Ontology enriched term and Kyoto Encyclopedia of Genes and Genomes enriched pathway analyses identified several terms and pathways related to brain development and cognitive function. Furthermore, we confirmed that the Wnt/β-catenin signaling pathway was down-regulated and neuron degeneration was enhanced. In summary, our results indicate that maternal fructose exposure during gestation and lactation can impair learning and memory in offspring and affect brain function at the transcriptome level.
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Antioxidant and Anti-Inflammatory Activity of Five Medicinal Mushrooms of the Genus Pleurotus. Antioxidants (Basel) 2022; 11:antiox11081569. [PMID: 36009288 PMCID: PMC9405179 DOI: 10.3390/antiox11081569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/26/2022] Open
Abstract
Within the group of higher fungi, edible medicinal mushrooms have a long history of being used as food and in folk medicine. These species contain biologically active substances with many potential beneficial effects on human health. The Pleurotus genus is representative of medicinal mushrooms because Pleurotus ostreatus is one of the most commonly cultivated culinary mushrooms. In our study, we focused on lesser-known species in the genus Pleurotus and measured their antioxidant and anti-inflammatory activity. We prepared extracts of the mushrooms and analyzed them using HPLC−HRMS, GC−MS, and 1H-NMR. Significant differences in biological activities were found among the Pleurotus spp. extracts. A MeOH extract of P. flabellatus was the most active as a radical scavenger with the highest ORAC, while a chloroform extract had significant anti-inflammatory COX-2 activity. The 80% MeOH extract of P. flabellatus contained the highest amounts of ergosterol, ergothioneine, and mannitol. The 80% MeOH extract of P. ostreatus Florida was the most active in the NF-κB inhibition assay and had the highest content of β-glucans (43.3% by dry weight). Given the antioxidant and anti-inflammatory properties of P. flabellatus, the potential therapeutic usefulness of this species is worth evaluating through in-depth investigations and confirmation by clinical trials.
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Pupyshev AB, Klyushnik TP, Akopyan AA, Singh SK, Tikhonova MA. Disaccharide Trehalose in Experimental Therapies for Neurodegenerative Disorders: Molecular Targets and Translational Potential. Pharmacol Res 2022; 183:106373. [PMID: 35907433 DOI: 10.1016/j.phrs.2022.106373] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/23/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022]
Abstract
Induction of autophagy is a prospective approach to the treatment of neurodegeneration. In the recent decade, trehalose attracted special attention. It is an autophagy inducer with negligible adverse effects and is approved for use in humans according to FDA requirements. Trehalose has a therapeutic effect in various experimental models of diseases. This glucose disaccharide with a flexible α-1-1'-glycosidic bond has unique properties: induction of mTOR-independent autophagy (with kinase AMPK as the main target) and a chaperone-like effect on proteins imparting them natural spatial structure. Thus, it can reduce the accumulation of neurotoxic aberrant/misfolded proteins. Trehalose has an anti-inflammatory effect and inhibits detrimental oxidative stress partially owing to the enhancement of endogenous antioxidant defense represented by the Nrf2 protein. The disaccharide activates lysosome and autophagosome biogenesis pathways through the protein factors TFEB and FOXO1. Here we review various mechanisms of the neuroprotective action of trehalose and touch on the possibility of pleiotropic effects. Current knowledge about specific features of trehalose pharmacodynamics is discussed. The neuroprotective effects of trehalose in animal models of major neurodegenerative disorders such as Alzheimer's, Parkinson's, and Huntington's diseases are examined too. Attention is given to translational transition to clinical trials of this drug, especially oral and parenteral routes of administration. Besides, the possibility of enhancing the therapeutic benefit via a combination of mTOR-dependent and mTOR-independent autophagy inducers is analyzed. In general, trehalose appears to be a promising multitarget tool for the inhibition of experimental neurodegeneration and requires thorough investigation of its clinical capabilities.
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Affiliation(s)
- Alexander B Pupyshev
- Scientific Research Institute of Neurosciences and Medicine (SRINM); Timakova Str. 4, Novosibirsk 630117, Russia.
| | - Tatyana P Klyushnik
- Mental Health Research Center, Kashirskoye shosse 34, Moscow 115522, Russia.
| | - Anna A Akopyan
- Scientific Research Institute of Neurosciences and Medicine (SRINM); Timakova Str. 4, Novosibirsk 630117, Russia.
| | - Sandeep Kumar Singh
- Indian Scientific Education and Technology Foundation, Krishna Bhawan, 594 Kha/123, Shahinoor Colony, Nilmatha, Uttar Pradesh, Lucknow 226002, India.
| | - Maria A Tikhonova
- Scientific Research Institute of Neurosciences and Medicine (SRINM); Timakova Str. 4, Novosibirsk 630117, Russia.
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Luo Z, Ma L, Zhou T, Huang Y, Zhang L, Du Z, Yong K, Yao X, Shen L, Yu S, Shi X, Cao S. Beta-Glucan Alters Gut Microbiota and Plasma Metabolites in Pre-Weaning Dairy Calves. Metabolites 2022; 12:metabo12080687. [PMID: 35893252 PMCID: PMC9332571 DOI: 10.3390/metabo12080687] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 02/01/2023] Open
Abstract
The present study aims to evaluate the alterations in gut microbiome and plasma metabolites of dairy calves with β-glucan (BG) supplementation. Fourteen healthy newborn dairy calves with similar body weight were randomly divided into control (n = 7) and BG (n = 7) groups. All the calves were fed on the basal diet, while calves in the BG group were supplemented with oat BG on d 8 for 14 days. Serum markers, fecal microbiome, and plasma metabolites at d 21 were analyzed. The calves were weaned on d 60 and weighed. The mean weaning weight of the BG group was 4.29 kg heavier than that of the control group. Compared with the control group, the levels of serum globulin, albumin, and superoxide dismutase were increased in the BG group. Oat BG intake increased the gut microbiota richness and decreased the Firmicutes-to-Bacteroidetes ratio. Changes in serum markers were found to be correlated with the plasma metabolites, including sphingosine, trehalose, and 3-methoxy-4-hydroxyphenylglycol sulfate, and gut microbiota such as Ruminococcaceae_NK4A214, Alistipes, and Bacteroides. Overall, these results suggest that the BG promotes growth and health of pre-weaning dairy calves by affecting the interaction between the host and gut microbiota.
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Affiliation(s)
- Zhengzhong Luo
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu University, Chengdu 610106, China;
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
| | - Li Ma
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
| | - Tao Zhou
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
| | - Yixin Huang
- Institute of Biodiversity, Animal Health & Comparative Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow G61 1QH, UK;
| | - Liben Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
| | - Zhenlong Du
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
| | - Kang Yong
- Department of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404100, China;
| | - Xueping Yao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
| | - Liuhong Shen
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
| | - Shumin Yu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
| | - Xiaodong Shi
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu University, Chengdu 610106, China;
- Correspondence: (X.S.); (S.C.)
| | - Suizhong Cao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (L.M.); (T.Z.); (L.Z.); (Z.D.); (X.Y.); (L.S.); (S.Y.)
- Correspondence: (X.S.); (S.C.)
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Sun Y, He L, Wang W, Xie Z, Zhang X, Wang P, Wang L, Yan C, Liu Z, Zhao J, Cui Z, Wang Y, Tang L, Zhang Z. Activation of Atg7-dependent autophagy by a novel inhibitor of the Keap1-Nrf2 protein-protein interaction from Penthorum chinense Pursh. attenuates 6-hydroxydopamine-induced ferroptosis in zebrafish and dopaminergic neurons. Food Funct 2022; 13:7885-7900. [PMID: 35776077 DOI: 10.1039/d2fo00357k] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The death of dopaminergic neurons is a dominant factor during the occurrence and development of Parkinson's disease (PD). Previous studies demonstrated that ferroptosis is implicated in the death of dopaminergic neurons. Besides, polyphenols have been proven to be effective in preventing the death of dopaminergic neurons. This work aims to explore the neuroprotective effect and mechanism of thonningianin A (Th A), a polyphenolic compound in natural plant foods, against 6-hydroxydopamine (6-OHDA)-induced ferroptosis in dopaminergic cells. The results of molecular docking and other binding assays collectively demonstrated that Th A can strongly target the Kelch domain of Keap1. Th A treatment significantly facilitated the nuclear factor erythroid 2-like 2 (Nrf2) nuclear translocation and subsequently increased the heme oxygenase-1 (HO-1) protein level through inhibiting the protein-protein interaction (PPI) of Keap1 and Nrf2. Compared with the nomifensine (Nomi) treatment, Th A had a more potent protective effect on 6-OHDA-induced ferroptosis during PD pathology in zebrafish, which was associated with assuaging the reduction of the total swimming distance, glutathione (GSH) depletion, iron accumulation, lipid peroxidation, and aggregation of α-synuclein (α-syn). Furthermore, Th A also exhibited a strong protective effect against 6-OHDA-induced ferroptosis in vitro in the human neuroblastoma cell line SH-SY5Y. Th A degraded Keap1 protein through activating Atg7-dependent autophagy. Additionally, Th A treatment facilitated the degradation of Keap1 protein by promoting the interaction between p62/SQSTM1 (sequestosome 1, hereafter referred to as p62) and Keap1. Taken together, our findings indicated that Th A protects dopaminergic cells against 6-OHDA-induced ferroptosis through activating the Nrf2-based cytoprotective system, thus enabling a potential application of Keap1-Nrf2 PPI inhibitors in the restraint of ferroptosis and treatment of PD.
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Affiliation(s)
- Yiran Sun
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
| | - Libo He
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, China.
| | - Wang Wang
- School of Basic Medicine, Nanchang Medical College, Nanchang 330052, Jiangxi, China
| | - Zhishen Xie
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
| | - Xiaowei Zhang
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
| | - Pan Wang
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
| | - Lan Wang
- College of Chemical and Food Engineering, Zhengzhou Institute of Technology, Zhengzhou 450044, China
| | - Chenchen Yan
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
| | - Zhiwen Liu
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
| | - Jie Zhao
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
| | - Zhenghao Cui
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
| | - Yida Wang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, China.
| | - Lin Tang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, China.
| | - Zhenqiang Zhang
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, P.R. China.
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Xu W, Li H, Wu L, Jin J, Han D, Zhu X, Yang Y, Liu H, Xie S. Taurine Alleviates Cadmium-Induced Toxicity via Genetically Specific Strategies in Two Strains of Gibel Carp ( Carassius gibelio). Antioxidants (Basel) 2022; 11:antiox11071381. [PMID: 35883872 PMCID: PMC9312164 DOI: 10.3390/antiox11071381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/08/2022] [Accepted: 07/14/2022] [Indexed: 02/01/2023] Open
Abstract
Our previous studies in gibel carp (Carassius gibelio) have shown that cadmium (Cd) exposure elicits deleterious effects depending on the genetic background, and thus we hypothesized that mitigation via nutritional intervention may vary between strains. Therefore, two gibel carp strains (the A and F strains) were fed diets supplemented with 0% or 1% taurine for 8 weeks prior to 96 h Cd exposure, and the responses of antioxidant pathways, endoplasmic reticulum (ER) stress, autophagy, and apoptosis were investigated. The results showed that taurine supplementation had no effect on the growth performance of gibel carp. After Cd exposure, histological damage to mitochondria and ER, induction of oxidative stress and antioxidant responses, occurrence of ER stress, and apoptotic signals were observed in the livers. Upon the diet effects, taurine supplementation alleviated the ER-stress-induced autophagy and apoptosis after Cd exposure and stimulated antioxidant pathways. Regarding the difference between strains, taurine played a protective role in alleviating Cd toxicity through the antioxidant response, ER stress, and autophagy in the F strain, whereas such effects were achieved by the attenuation of apoptosis in the A strain. Taken together, our results demonstrate the potential use of taurine in the mitigation of heavy metal toxicity in aquatic organisms.
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Affiliation(s)
- Wenjie Xu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
| | - Hongyan Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
| | - Liyun Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junyan Jin
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
- Correspondence:
| | - Dong Han
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
| | - Xiaoming Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
| | - Yunxia Yang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
| | - Haokun Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
| | - Shouqi Xie
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (W.X.); (H.L.); (L.W.); (D.H.); (X.Z.); (Y.Y.); (H.L.); (S.X.)
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
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Umeda-Miyara K, Miyara M, Sanoh S, Kotake Y. Trehalose decreases mRNA and protein expressions of c-Jun and JunB in human cervical cancer HeLa cells. J Biochem 2022; 172:177-187. [PMID: 35748379 DOI: 10.1093/jb/mvac051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 06/07/2022] [Indexed: 11/14/2022] Open
Abstract
Increasing evidence suggests that trehalose, a non-reducing disaccharide, ameliorates disease phenotypes by activating autophagy in animal models of various human diseases, including neurodegenerative diseases. Multiple in vitro studies suggest that activation of transcription factor EB, a master regulator of lysosomal biogenesis and autophagy genes, is a major contributor to trehalose-induced autophagy at later stages of exposure. However, underlying causes of trehalose-induced autophagy possibly occur at the early stage of the exposure period. In this study, we investigated the effects of short-term exposure of HeLa cells to trehalose on several signal transduction pathways to elucidate the initial events involved in its beneficial effects. Phospho-protein array analysis revealed that trehalose decreases levels of phosphorylated c-Jun, a component of the transcription factor activator protein-1, after 6 h. Trehalose also rapidly reduced mRNA expression levels of c-Jun and JunB, a member of the Jun family, within 1 h, resulting in a subsequent decrease in their protein levels. Future studies, exploring the interplay between decreased c-Jun and JunB protein levels and beneficial effects of trehalose may provide novel insights into the mechanisms of trehalose action.
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Affiliation(s)
- Kanae Umeda-Miyara
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Hiroshima 734-8553, Japan
| | - Masatsugu Miyara
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Hiroshima 734-8553, Japan.,Research Fellow of Japan Society for the Promotion of Science, Chiyoda-ku, Tokyo 102-0083, Japan.,Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, Gifu, Gifu 501-1196, Japan
| | - Seigo Sanoh
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Hiroshima 734-8553, Japan
| | - Yaichiro Kotake
- Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Hiroshima 734-8553, Japan
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Moon SH, Kwon Y, Huh YE, Choi HJ. Trehalose ameliorates prodromal non-motor deficits and aberrant protein accumulation in a rotenone-induced mouse model of Parkinson's disease. Arch Pharm Res 2022; 45:417-432. [PMID: 35618982 DOI: 10.1007/s12272-022-01386-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 05/18/2022] [Indexed: 02/03/2023]
Abstract
Trehalose has been recently revealed as an attractive candidate to prevent and modify Parkinson's disease (PD) progression by regulating autophagy; however, studies have only focused on the reduction of motor symptoms rather than the modulation of disease course from prodromal stage. This study aimed to evaluate whether trehalose has a disease-modifying effect at the prodromal stage before the onset of a motor deficit in 8-week-old male C57BL/6 mice exposed to rotenone. We found significant decrease in tyrosine hydroxylase immunoreactivity in the substantia nigra and motor dysfunction after 2 weeks rotenone treatment. Mice exposed to rotenone for a week showed an accumulation of protein aggregates in the brain and prodromal non-motor deficits, such as depression and olfactory dysfunction, prior to motor deficits. Trehalose significantly improved olfactory dysfunction and depressive-like behaviors and markedly reduced α-synuclein and p62 deposition in the brain. Trehalose further ameliorated motor impairment and loss of nigral tyrosine hydroxylase-positive cells in rotenone-treated mice. We demonstrated that prodromal non-motor signs in a rotenone-induced PD mouse model are associated with protein aggregate accumulation in the brain and that an autophagy inducer could be valuable to prevent PD progression from prodromal stage by regulating abnormal protein accumulation.
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Affiliation(s)
- Soung Hee Moon
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pocheon, Gyeonggi-do, 11160, Republic of Korea
| | - Yoonjung Kwon
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pocheon, Gyeonggi-do, 11160, Republic of Korea
| | - Young Eun Huh
- Department of Neurology, CHA Bundang Medical Center, CHA University, Seongnam, Gyeonggi-do, 13488, Republic of Korea.
| | - Hyun Jin Choi
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Pocheon, Gyeonggi-do, 11160, Republic of Korea.
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45
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Protective effects of trehalose preconditioning on cardiac and coronary endothelial function through eNOS signaling pathway in a rat model of ischemia-reperfusion injury. Mol Cell Biochem 2022; 477:2403-2414. [PMID: 35578066 DOI: 10.1007/s11010-022-04451-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/25/2022] [Indexed: 01/18/2023]
Abstract
Coronary endothelial dysfunction is a major cause of ischemia-reperfusion (I/R) injury. Trehalose, a natural disaccharide, has been reported to ameliorate endothelial dysfunction during aging by activating endothelial nitric oxide synthase (eNOS); however, its role in I/R injury is unknown. This study evaluated the effects of trehalose preconditioning on cardiac and coronary endothelial function after I/R. Langendorff-perfused rat hearts underwent 30 min of global ischemia followed by 80 min of reperfusion with or without trehalose preconditioning. Rate pressure product (RPP) and coronary flow (CF) were measured during reperfusion. Perivascular edema was assessed by hematoxylin and eosin staining. Myocardial oxidative stress and apoptosis were evaluated by immunohistochemistry and TUNEL staining, respectively. eNOS dimerization was determined by western blotting. An eNOS inhibitor was used to examine the role of eNOS. Trehalose preconditioning showed a higher recovery rate after I/R as indicated by high RPP (control vs. trehalose, 28 ± 6% vs. 46 ± 9%; P = 0.017, Cohen's d = 2.3) and CF values (35 ± 10% vs. 55 ± 9%; P = 0.025, d = 1.7). Furthermore, trehalose preconditioning reduced perivascular edema, myocardial oxidative stress, and apoptosis. The eNOS dimerization ratio was increased by trehalose (1.2 ± 0.2 vs. 1.6 ± 0.2; P = 0.023, d = 2.1), which was associated with the recovery of RPP and CF. These effects of trehalose were abolished by the eNOS inhibitor. Trehalose preconditioning showed protective effects on cardiac and coronary endothelial function after I/R through the eNOS signaling pathway.
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46
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Li C, Sun L, Zhu J, Ji X, Huang R, Fan Y, Guo M, Ge Y. Trehalose Regulates Starch, Sorbitol, and Energy Metabolism to Enhance Tolerance to Blue Mold of "Golden Delicious" Apple Fruit. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5658-5667. [PMID: 35499968 DOI: 10.1021/acs.jafc.2c01102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The efficacy of trehalose on the lesion diameter of apples (cv. Golden Delicious) inoculated with Penicillium expansum was evaluated to screen the optimal concentration. The changes in gene expression and activity of the enzyme in starch, sorbitol, and energy metabolism were also investigated in apples after trehalose treatment. The results revealed that trehalose dipping reduced the lesion diameter of apples inoculated with P. expansum. Trehalose suppressed the activities and gene expressions of β-amylase, NAD-sorbitol dehydrogenase, and NADP-sorbitol dehydrogenase, whereas it decreased the sorbitol 6-phosphate dehydrogenase gene expression and amylose, amylopectin, total starch, and reducing sugar contents. Additionally, trehalose improved the gene expressions and activities of α-amylase, starch-branching enzymes, total amylase, H+-ATPase, and Ca2+-ATPase, as well as soluble sugar, adenosine triphosphate, and adenosine diphosphate contents and energy charge in apples. These findings imply that trehalose could induce tolerance to the blue mold of apple fruit by regulating starch, sorbitol, and energy metabolism.
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Affiliation(s)
- Canying Li
- College of Food Science and Engineering Bohai University, Jinzhou 121013, P.R. China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, P.R. China
| | - Lei Sun
- College of Food Science and Engineering Bohai University, Jinzhou 121013, P.R. China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, P.R. China
| | - Jie Zhu
- College of Food Science and Engineering Bohai University, Jinzhou 121013, P.R. China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, P.R. China
| | - Xiaonan Ji
- College of Food Science and Engineering Bohai University, Jinzhou 121013, P.R. China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, P.R. China
| | - Rui Huang
- College of Food Science and Engineering Bohai University, Jinzhou 121013, P.R. China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, P.R. China
| | - Yiting Fan
- College of Food Science and Engineering Bohai University, Jinzhou 121013, P.R. China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, P.R. China
| | - Mi Guo
- College of Food Science and Engineering Bohai University, Jinzhou 121013, P.R. China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, P.R. China
| | - Yonghong Ge
- College of Food Science and Engineering Bohai University, Jinzhou 121013, P.R. China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, P.R. China
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Wei B, Lu F, Kong Q, Huang Y, Huang K, Wu W. Trehalose induces B cell autophagy to alleviate myocardial injury via the AMPK/ULK1 signalling pathway in acute viral myocarditis induced by Coxsackie virus B3. Int J Biochem Cell Biol 2022; 146:106208. [PMID: 35381374 DOI: 10.1016/j.biocel.2022.106208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/26/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
Abstract
Viral myocarditis (VMC) is the main cause of sudden acute heart failure and cardiac death in adolescents; however, treatment for VMC is limited. Trehalose is a natural non-reductive disaccharide that protects against cardiovascular diseases by inducing autophagy. The protective effect of trehalose on VMC and the specific mechanism remains unclear. In this study, we established a VMC mouse model, treated with trehalose in vivo, and cultured B cells from VMC mice with trehalose in vitro to elucidate the effect of trehalose on B cells in acute VMC. Trehalose alleviated myocardial injury in VMC mice and increased the number of autophagosomes, LC3II/LC3I ratio, and expression level of LAMP2, whereas it decreased the expression of p62 in VMC-B cells. Bafilomycin A1 suppressed VMC-B cell autophagy induced by trehalose. At the mechanistic level, trehalose treatment significantly upregulated the phosphorylation of AMPK and ULK1 in VMC-B cells. Dorsomorphin and SBI-0206965 abolished the increased phosphorylation level and altered the expression levels of autophagy-related proteins. In conclusion, trehalose alleviates myocardial inflammatory damage of VMC by inducing B cell autophagy, mediated by the AMPK/ULK1 signalling pathway. Thus, trehalose may be a potentially useful molecule for alleviating myocardial injury in VMC.
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Affiliation(s)
- Bin Wei
- Department of Cardiology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
| | - Feiyu Lu
- Department of Cardiology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Qing Kong
- Department of Cardiology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Yanlan Huang
- Department of Cardiology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Kai Huang
- Department of Cardiology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Weifeng Wu
- Department of Cardiology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
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Pupyshev AB, Belichenko VM, Tenditnik MV, Bashirzade AA, Dubrovina NI, Ovsyukova MV, Akopyan AA, Fedoseeva LA, Korolenko TA, Amstislavskaya TG, Tikhonova MA. Combined induction of mTOR-dependent and mTOR-independent pathways of autophagy activation as an experimental therapy for Alzheimer's disease-like pathology in a mouse model. Pharmacol Biochem Behav 2022; 217:173406. [DOI: 10.1016/j.pbb.2022.173406] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 03/18/2022] [Accepted: 05/17/2022] [Indexed: 12/21/2022]
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Zhao W, Deng Z, Barkema HW, Xu M, Gao J, Liu G, Lin Y, Kastelic JP, Han B. Nrf2 and NF-κB/NLRP3 inflammasome pathways are involved in Prototheca bovis infections of mouse mammary gland tissue and mammary epithelial cells. Free Radic Biol Med 2022; 184:148-157. [PMID: 35417750 DOI: 10.1016/j.freeradbiomed.2022.04.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 03/24/2022] [Accepted: 04/07/2022] [Indexed: 12/15/2022]
Abstract
Prototheca bovis is a serious pathogen for animals, but pathogenesis of P. bovis mastitis is unclear. The objective was to characterize how P. bovis induces inflammatory responses in mouse mammary gland tissue and mammary epithelial cells (mMECs). Prototheca bovis damaged mammary gland tissue and mitochondrial structure, and induced oxidative stress, as evident by significant increases in mtROS and MDA concentrations and significant decreases in T-SOD activity in both mammary gland tissue and mMECs. Expression of Nrf2, HO-1 and Keap1 proteins was significantly changed in mammary gland tissue and mMECs after P. bovis infection. Additionally, cytokines (IL-1β, IL-6 and IL-18) and protein expressions in NF-κB and in the NLRP3 inflammasome pathway were significantly increased in mammary gland tissue and mMECs. In the P. bovis group, treatment with N-acetyl-l-cysteine (NAC) significantly decreased protein expression in NF-κB and the NLRP3 inflammasome pathway, as well as IL-1β, IL-6 and IL-18, whereas protein expression in the Nrf2 pathway was significantly changed. Inhibition of NF-κB or NLRP3 significantly decreased expression of IL-1β and IL-18 proteins in mMECs infected with P. bovis. Additionally, activating Nrf2 inhibited expression of NLRP3 and IL-1β. In conclusion, P. bovis induced an inflammatory response via the NF-κB/NLRP3 inflammasome pathway; however, scavenging ROS or activating Nrf2 mitigated the inflammatory response in infected mMECs.
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Affiliation(s)
- Wenpeng Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China
| | - Zhaoju Deng
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China
| | - Herman W Barkema
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Maolin Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China
| | - Jian Gao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China
| | - Gang Liu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China
| | - Yushan Lin
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China
| | - John P Kastelic
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Bo Han
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China.
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50
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Yue K, Pu X, Loor JJ, Jiang Q, Dong J, Shen T, Li G, Gao W, Lei L, Du X, Song Y, Liu G, Li X. Impaired autophagy aggravates oxidative stress in mammary gland of dairy cows with clinical ketosis. J Dairy Sci 2022; 105:6030-6040. [DOI: 10.3168/jds.2021-21234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 03/21/2022] [Indexed: 11/19/2022]
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