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Conti F, McCue JJ, DiTuro P, Galpin AJ, Wood TR. Mitigating Traumatic Brain Injury: A Narrative Review of Supplementation and Dietary Protocols. Nutrients 2024; 16:2430. [PMID: 39125311 PMCID: PMC11314487 DOI: 10.3390/nu16152430] [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: 07/03/2024] [Revised: 07/18/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Traumatic brain injuries (TBIs) constitute a significant public health issue and a major source of disability and death in the United States and worldwide. TBIs are strongly associated with high morbidity and mortality rates, resulting in a host of negative health outcomes and long-term complications and placing a heavy financial burden on healthcare systems. One promising avenue for the prevention and treatment of brain injuries is the design of TBI-specific supplementation and dietary protocols centred around nutraceuticals and biochemical compounds whose mechanisms of action have been shown to interfere with, and potentially alleviate, some of the neurophysiological processes triggered by TBI. For example, evidence suggests that creatine monohydrate and omega-3 fatty acids (DHA and EPA) help decrease inflammation, reduce neural damage and maintain adequate energy supply to the brain following injury. Similarly, melatonin supplementation may improve some of the sleep disturbances often experienced post-TBI. The scope of this narrative review is to summarise the available literature on the neuroprotective effects of selected nutrients in the context of TBI-related outcomes and provide an evidence-based overview of supplementation and dietary protocols that may be considered in individuals affected by-or at high risk for-concussion and more severe head traumas. Prophylactic and/or therapeutic compounds under investigation include creatine monohydrate, omega-3 fatty acids, BCAAs, riboflavin, choline, magnesium, berry anthocyanins, Boswellia serrata, enzogenol, N-Acetylcysteine and melatonin. Results from this analysis are also placed in the context of assessing and addressing important health-related and physiological parameters in the peri-impact period such as premorbid nutrient and metabolic health status, blood glucose regulation and thermoregulation following injury, caffeine consumption and sleep behaviours. As clinical evidence in this research field is rapidly emerging, a comprehensive approach including appropriate nutritional interventions has the potential to mitigate some of the physical, neurological, and emotional damage inflicted by TBIs, promote timely and effective recovery, and inform policymakers in the development of prevention strategies.
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Affiliation(s)
- Federica Conti
- School of Physics, University of Sydney, Sydney, NSW 2050, Australia;
| | - Jackson J. McCue
- School of Medicine, University of Washington, Seattle, WA 98195, USA;
| | - Paul DiTuro
- Department of Exercise Science, University of South Carolina, Columbia, SC 29208, USA
| | - Andrew J. Galpin
- Center for Sport Performance, California State University, Fullerton, CA 92831, USA;
| | - Thomas R. Wood
- Department of Pediatrics, University of Washington, Seattle, WA 98195, USA
- Institute for Human and Machine Cognition, Pensacola, FL 32502, USA
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2
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Hanc K, Janeková H, Štacko P. Concurrent Subcellular Delivery of Hydrogen Sulfide and a Payload with Near-Infrared Light. JACS AU 2024; 4:2687-2694. [PMID: 39055161 PMCID: PMC11267537 DOI: 10.1021/jacsau.4c00445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/23/2024] [Accepted: 06/24/2024] [Indexed: 07/27/2024]
Abstract
Hydrogen sulfide (H2S) is a gaseous signaling molecule, exerting crucial regulatory functions in organelles and cellular environments. H2S exhibits high therapeutic potential and synergistic effects with other drugs, and its potency is notably enhanced through organelle-specific targeting. Yet, the navigation of light-activated H2S donors to specific organelles remains absent. Here, we report the first organelle-specific photocage that simultaneously delivers H2S and a payload with subcellular precision to mitochondria of live human cells using tissue-penetrating near-infrared light as a trigger. The fluorogenic payload enables real-time monitoring of the process, and we demonstrate the concurrent uncaging in mitochondria through a combination of fluorescence microscopy and mitochondria-specific fluorescent probes. We anticipate that these photocages will permit the precise delivery of H2S-drug combinations with exceptional spatiotemporal control, thereby driving the harnessing of known synergistic effects and the discovery of novel therapeutic strategies.
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Affiliation(s)
- Katarzyna Hanc
- Department of Chemistry, University
of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Hana Janeková
- Department of Chemistry, University
of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Peter Štacko
- Department of Chemistry, University
of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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3
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Chiu PE, Fu Z, Tsai YC, Tsai CY, Hsu WJ, Chou LW, Lai DW. Fu's subcutaneous needling promotes axonal regeneration and remyelination by inhibiting inflammation and endoplasmic reticulum stress. Transl Res 2024; 273:46-57. [PMID: 38950695 DOI: 10.1016/j.trsl.2024.06.005] [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] [Received: 11/01/2023] [Revised: 05/03/2024] [Accepted: 06/24/2024] [Indexed: 07/03/2024]
Abstract
Fu's subcutaneous needling (FSN) is a traditional Chinese acupuncture procedure used to treat pain-related neurological disorders. Moreover, the regulation of inflammatory cytokines may provide a favorable environment for peripheral nerve regeneration. In light of this, FSN may be an important novel therapeutic strategy to alleviate pain associated with peripheral neuropathy; however, the underlying molecular mechanisms remain unclear. This study revealed that patients who had osteoarthritis with peripheral neuropathic pain significantly recovered after 1 to 2 weeks of FSN treatment according to the visual analog scale, Western Ontario and McMaster Universities Osteoarthritis Index, Lequesne index, walking speed, and passive range of motion. Similarly, we demonstrated that FSN treatment in an animal model of chronic constriction injury (CCI) significantly improved sciatic nerve pain using paw withdrawal thresholds, sciatic functional index scores, and compound muscle action potential amplitude tests. In addition, transmission electron microscopy images of sciatic nerve tissue showed that FSN effectively reduced axonal swelling, abnormal myelin sheaths, and the number of organelle vacuoles in CCI-induced animals. Mechanistically, RNA sequencing and gene set enrichment analysis revealed significantly reduced inflammatory pathways, neurotransmitters, and endoplasmic reticulum stress pathways and increased nerve regeneration factors in the FSN+CCI group, compared with that in the CCI group. Finally, immunohistochemistry, immunoblotting and enzyme-linked immunosorbent assay showed similar results in the dorsal root ganglia and sciatic nerve. Our findings suggest that FSN can effectively ameliorate peripheral neuropathic pain by regulate inflammation and endoplasmic reticulum stress, thereby determine its beneficial application in patients with peripheral nerve injuries.
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Affiliation(s)
- Po-En Chiu
- Department of Chinese Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan; Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Zhonghua Fu
- Institute of Fu's Subcutaneous Needling, Beijing University of Chinese Medicine, Beijing, China; Clinical Medical College of Acupuncture & Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yi-Ching Tsai
- Department of Immune Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Chia-Yun Tsai
- Experimental Animal Center, Department of Molecular Biology and Cell Research, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Wei-Jen Hsu
- Experimental Animal Center, Department of Molecular Biology and Cell Research, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Li-Wei Chou
- Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung, Taiwan; Department of Physical Therapy and Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taiwan; Department of Physical Medicine and Rehabilitation, Asia University Hospital, Asia University, Taichung, Taiwan.
| | - De-Wei Lai
- Experimental Animal Center, Department of Molecular Biology and Cell Research, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan; Department of Pharmacy and Master Program, Tajen University, Pingtung, Taiwan; Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan.
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4
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Amiri B, Yazdani Tabrizi M, Naziri M, Moradi F, Arzaghi M, Archin I, Behaein F, Bagheri Pour A, Ghannadikhosh P, Imanparvar S, Akhtari Kohneshahri A, Sanaye Abbasi A, Zerangian N, Alijanzadeh D, Ghayyem H, Azizinezhad A, Ahmadpour Youshanlui M, Poudineh M. Neuroprotective effects of flavonoids: endoplasmic reticulum as the target. Front Neurosci 2024; 18:1348151. [PMID: 38957188 PMCID: PMC11218733 DOI: 10.3389/fnins.2024.1348151] [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: 12/01/2023] [Accepted: 03/28/2024] [Indexed: 07/04/2024] Open
Abstract
The incidence of neurological disorders, particularly age-related neurodegenerative pathologies, exhibits an alarming upward trend, while current pharmacological interventions seldom achieve curative outcomes. Despite their diverse clinical presentations, neurological diseases often share a common pathological thread: the aberrant accumulation of misfolded proteins within the endoplasmic reticulum (ER). This phenomenon, known as ER stress, arises when the cell's intrinsic quality control mechanisms fail to cope with the protein-folding burden. Consequently, misfolded proteins accumulate in the ER lumen, triggering a cascade of cellular stress responses. Recognizing this challenge, researchers have intensified their efforts over the past two decades to explore natural compounds that could potentially slow or even reverse these devastating pathologies. Flavonoids constitute a vast and heterogeneous class of plant polyphenols, with over 10,000 identified from diverse natural sources such as wines, vegetables, medicinal plants, and organic products. Flavonoids are generally divided into six different subclasses: anthocyanidins, flavanones, flavones, flavonols, isoflavones, and flavonols. The diverse family of flavonoids, featuring a common phenolic ring backbone adorned with varying hydroxyl groups and additional modifications, exerts its antioxidant activity by inhibiting the formation of ROS, as evidenced by research. Also, studies suggest that polyphenols such as flavonoids can regulate ER stress through apoptosis and autophagy. By understanding these mechanisms, we can unlock the potential of flavonoids as novel therapeutic agents for neurodegenerative disorders. Therefore, this review critically examines the literature exploring the modulatory effects of flavonoids on various steps of the ER stress in neurological disorders.
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Affiliation(s)
- Bita Amiri
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Yazdani Tabrizi
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdyieh Naziri
- Student Research Committee, School of Health, Iran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Moradi
- Student Research Committee, School of Health, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Arzaghi
- Department of Physical Education and Sports Science-Nutrition, Branch Islamic Azad University, Tehran, Iran
| | - Iman Archin
- Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | | | - Parna Ghannadikhosh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saba Imanparvar
- School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ata Akhtari Kohneshahri
- Student Research Committee, Faculty of Medicine, Tabriz Medical Sciences, Islamic Azad University, Tabriz, Iran
| | - Ali Sanaye Abbasi
- Student Research Committee, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Nasibeh Zerangian
- PhD Student in Health Education and Health Promotion, Department of Health Education and Health Promotion, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Dorsa Alijanzadeh
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hani Ghayyem
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Azizinezhad
- Universal Scientific Education and Research Network (USERN), Tabriz, Iran
| | | | - Mohadeseh Poudineh
- Student Research Committee, Zanjan University of Medical Sciences, Zanjan, Iran
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Mihajlović K, Ceddia G, Malod-Dognin N, Novak G, Kyriakis D, Skupin A, Pržulj N. Multi-omics integration of scRNA-seq time series data predicts new intervention points for Parkinson's disease. Sci Rep 2024; 14:10983. [PMID: 38744869 PMCID: PMC11094121 DOI: 10.1038/s41598-024-61844-3] [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: 01/30/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024] Open
Abstract
Parkinson's disease (PD) is a complex neurodegenerative disorder without a cure. The onset of PD symptoms corresponds to 50% loss of midbrain dopaminergic (mDA) neurons, limiting early-stage understanding of PD. To shed light on early PD development, we study time series scRNA-seq datasets of mDA neurons obtained from patient-derived induced pluripotent stem cell differentiation. We develop a new data integration method based on Non-negative Matrix Tri-Factorization that integrates these datasets with molecular interaction networks, producing condition-specific "gene embeddings". By mining these embeddings, we predict 193 PD-related genes that are largely supported (49.7%) in the literature and are specific to the investigated PINK1 mutation. Enrichment analysis in Kyoto Encyclopedia of Genes and Genomes pathways highlights 10 PD-related molecular mechanisms perturbed during early PD development. Finally, investigating the top 20 prioritized genes reveals 12 previously unrecognized genes associated with PD that represent interesting drug targets.
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Affiliation(s)
| | - Gaia Ceddia
- Barcelona Supercomputing Center (BSC), 08034, Barcelona, Spain
| | | | - Gabriela Novak
- The Integrative Cell Signalling Group, Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
- Luxembourg Institute of Health (LIH), Esch-sur-Alzette, Luxembourg
| | - Dimitrios Kyriakis
- The Integrative Cell Signalling Group, Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Alexander Skupin
- The Integrative Cell Signalling Group, Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
- Luxembourg Institute of Health (LIH), Esch-sur-Alzette, Luxembourg
- University of California San Diego, La Jolla, CA, 92093, USA
| | - Nataša Pržulj
- Barcelona Supercomputing Center (BSC), 08034, Barcelona, Spain.
- Department of Computer Science, University College London, WC1E 6BT, London, UK.
- ICREA, Pg. Lluís Companys 23, 08010, Barcelona, Spain.
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Sarawi WS, Attia HA, Alomar HA, Alhaidar R, Rihan E, Aldurgham N, Ali RA. The protective role of sesame oil against Parkinson's-like disease induced by manganese in rats. Behav Brain Res 2024; 465:114969. [PMID: 38548024 DOI: 10.1016/j.bbr.2024.114969] [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: 12/07/2023] [Revised: 03/21/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024]
Abstract
Chronic exposure to manganese (Mn) results in motor dysfunction, biochemical and pathological alterations in the brain. Oxidative stress, inflammation, and dysfunction of dopaminergic and GABAergic systems stimulate activating transcription factor-6 (ATF-6) and protein kinase RNA-like ER kinase (PERK) leading to apoptosis. This study aimed to investigate the protective effect of sesame oil (SO) against Mn-induced neurotoxicity. Rats received 25 mg/kg MnCl2 and were concomitantly treated with 2.5, 5, or 8 ml/kg of SO for 5 weeks. Mn-induced motor dysfunction was indicated by significant decreases in the time taken by rats to fall during the rotarod test and in the number of movements observed during the open field test. Also, Mn resulted in neuronal degeneration as observed by histological staining. The striatal levels of lipid peroxides and reduced glutathione (oxidative stress markers), interleukin-6 and tumor necrosis factor-α (inflammatory markers) were significantly elevated. Mn significantly reduced the levels of dopamine and Bcl-2, while GABA, PERK, ATF-6, Bax, and caspase-3 were increased. Interestingly, all SO doses, especially at 8 ml/kg, significantly improved locomotor activity, biochemical deviations and reduced neuronal degeneration. In conclusion, SO may provide potential therapeutic benefits in enhancing motor performance and promoting neuronal survival in individuals highly exposed to Mn.
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Affiliation(s)
- Wedad S Sarawi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia.
| | - Hala A Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Hatun A Alomar
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Rawan Alhaidar
- College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Esraa Rihan
- College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Nora Aldurgham
- College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Rehab A Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
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Song J, Li J, Pei X, Chen J, Wang L. Identification of cuproptosis-realated key genes and pathways in Parkinson's disease via bioinformatics analysis. PLoS One 2024; 19:e0299898. [PMID: 38626069 PMCID: PMC11020840 DOI: 10.1371/journal.pone.0299898] [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: 11/08/2023] [Accepted: 02/17/2024] [Indexed: 04/18/2024] Open
Abstract
INTRODUCTION Parkinson's disease (PD) is the second most common worldwide age-related neurodegenerative disorder without effective treatments. Cuproptosis is a newly proposed conception of cell death extensively studied in oncological diseases. Currently, whether cuproptosis contributes to PD remains largely unclear. METHODS The dataset GSE22491 was studied as the training dataset, and GSE100054 was the validation dataset. According to the expression levels of cuproptosis-related genes (CRGs) and differentially expressed genes (DEGs) between PD patients and normal samples, we obtained the differentially expressed CRGs. The protein-protein interaction (PPI) network was achieved through the Search Tool for the Retrieval of Interacting Genes. Meanwhile, the disease-associated module genes were screened from the weighted gene co-expression network analysis (WGCNA). Afterward, the intersection genes of WGCNA and PPI were obtained and enriched using the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). Subsequently, the key genes were identified from the datasets. The receiver operating characteristic curves were plotted and a PPI network was constructed, and the PD-related miRNAs and key genes-related miRNAs were intersected and enriched. Finally, the 2 hub genes were verified via qRT-PCR in the cell model of the PD and the control group. RESULTS 525 DEGs in the dataset GSE22491 were identified, including 128 upregulated genes and 397 downregulated genes. Based on the PPI network, 41 genes were obtained. Additionally, the dataset was integrated into 34 modules by WGCNA. 36 intersection genes found from WGCNA and PPI were significantly abundant in 7 pathways. The expression levels of the genes were validated, and 2 key genes were obtained, namely peptidase inhibitor 3 (PI3) and neuroserpin family I member 1 (SERPINI1). PD-related miRNAs and key genes-related miRNAs were intersected into 29 miRNAs including hsa-miR-30c-2-3p. At last, the qRT-PCR results of 2 hub genes showed that the expressions of mRNA were up-regulated in PD. CONCLUSION Taken together, this study demonstrates the coordination of cuproptosis in PD. The key genes and miRNAs offer novel perspectives in the pathogenesis and molecular targeting treatment for PD.
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Affiliation(s)
- Jia Song
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jia Li
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xiaochen Pei
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jiajun Chen
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Lin Wang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
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Zhao Y, Chang YH, Ren HR, Lou M, Jiang FW, Wang JX, Chen MS, Liu S, Shi YS, Zhu HM, Li JL. Phthalates Induce Neurotoxicity by Disrupting the Mfn2-PERK Axis-Mediated Endoplasmic Reticulum-Mitochondria Interaction. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7411-7422. [PMID: 38390847 DOI: 10.1021/acs.jafc.3c07752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP), as the most common phthalate, has been extensively used as a plasticizer to improve the plasticity of agricultural products, which pose severe harm to human health. Mitochondrial dynamics and endoplasmic reticulum (ER) homeostasis are indispensable for maintaining mitochondria-associated ER membrane (MAM) integrity. In this study, we aimed to explore the effect of DEHP on the nervous system and its association with the ER-mitochondria interaction. Here, we showed that DEHP caused morphological changes, motor deficits, cognitive impairments, and blood-brain barrier disruption in the brain. DEHP triggered ER stress, which is mainly mediated by protein kinase R-like endoplasmic reticulum kinase (PERK) signaling. Moreover, DEHP-induced mitofusin-2 (Mfn2) downregulation results in imbalance of the mitochondrial dynamics. Interestingly, DEHP exposure impaired MAMs by inhibiting the Mfn2-PERK interaction. Above all, this study elucidates the disruption of the Mfn2-PERK axis-mediated ER-mitochondria interaction as a phthalate-induced neurotoxicity that could be potentially developed as a novel therapy for neurological diseases.
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Affiliation(s)
- Yi Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, P. R. China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Yuan-Hang Chang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Hao-Ran Ren
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Ming Lou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Fu-Wei Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Jia-Xin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Ming-Shan Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Shuo Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Yu-Sheng Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Hong-Mei Zhu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, P. R. China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
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Singh R, Kaur N, Choubey V, Dhingra N, Kaur T. Endoplasmic reticulum stress and its role in various neurodegenerative diseases. Brain Res 2024; 1826:148742. [PMID: 38159591 DOI: 10.1016/j.brainres.2023.148742] [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: 08/18/2023] [Revised: 12/07/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
The Endoplasmic reticulum (ER), a critical cellular organelle, maintains cellular homeostasis by regulating calcium levels and orchestrating essential functions such as protein synthesis, folding, and lipid production. A pivotal aspect of ER function is its role in protein quality control. When misfolded proteins accumulate within the ER due to factors like protein folding chaperone dysfunction, toxicity, oxidative stress, or inflammation, it triggers the Unfolded protein response (UPR). The UPR involves the activation of chaperones like calnexin, calreticulin, glucose-regulating protein 78 (GRP78), and Glucose-regulating protein 94 (GRP94), along with oxidoreductases like protein disulphide isomerases (PDIs). Cells employ the Endoplasmic reticulum-associated degradation (ERAD) mechanism to counteract protein misfolding. ERAD disruption causes the detachment of GRP78 from transmembrane proteins, initiating a cascade involving Inositol-requiring kinase/endoribonuclease 1 (IRE1), Activating transcription factor 6 (ATF6), and Protein kinase RNA-like endoplasmic reticulum kinase (PERK) pathways. The accumulation and deposition of misfolded proteins within the cell are hallmarks of numerous neurodegenerative diseases. These aberrant proteins disrupt normal neuronal signalling and contribute to impaired cellular homeostasis, including oxidative stress and compromised protein degradation pathways. In essence, ER stress is defined as the cellular response to the accumulation of misfolded proteins in the endoplasmic reticulum, encompassing a series of signalling pathways and molecular events that aim to restore cellular homeostasis. This comprehensive review explores ER stress and its profound implications for the pathogenesis and progression of neurodegenerative diseases.
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Affiliation(s)
- Rimaljot Singh
- Department of Biophysics, Panjab University Chandigarh, India
| | - Navpreet Kaur
- Department of Biophysics, Panjab University Chandigarh, India
| | - Vinay Choubey
- Department of Pharmacology, University of Tartu, Ravila 19, 51014 Tartu, Estonia
| | - Neelima Dhingra
- University Institute of Pharmaceutical Sciences, Panjab University Chandigarh, India
| | - Tanzeer Kaur
- Department of Biophysics, Panjab University Chandigarh, India.
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10
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Liu C, Chen H, Tao X, Li C, Li A, Wu W. ALKBH5 protects against stroke by reducing endoplasmic reticulum stress-dependent inflammation injury via the STAT5/PERK/EIF2α/CHOP signaling pathway in an m 6A-YTHDF1-dependent manner. Exp Neurol 2024; 372:114629. [PMID: 38056583 DOI: 10.1016/j.expneurol.2023.114629] [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: 07/30/2023] [Revised: 10/31/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Endoplasmic reticulum (ER) stress causes neuroinflammation and neuronal apoptosis during ischemic stroke progression. This study has investigated the role of ALKBH5 in ER stress during ischemic stroke progression. METHODS In vivo and in vitro models of ischemic stroke were established by middle cerebral artery occlusion (MCAO) and OGD/R treatment, respectively. Cerebral infarct size was detected using triphenyltetrazolium chloride staining (TTC), and pathological changes were examined using histological staining. The levels of inflammatory factors were analyzed using Enzyme-linked immunosorbent assay. Cell counting kit-8 assay and flow cytometry were used to measure cell viability and apoptosis, respectively. The global m6A level was detected using the commercial kit, and STAT5 mRNA m6A level was determined using methylated RNA binding protein immunoprecipitation (Me-RIP). ALKBH5, YTHDF1, and STAT5 interactions were analyzed using RIP and RNA pull-down assays. RESULTS ALKBH5 was upregulated in MCAO animals and OGD/R cell models. ALKBH5 knockdown exacerbated ER stress, neuroinflammation, and neuronal apoptosis in brain tissues and neuronal cells. ALKBH5 inhibited STAT5 mRNA stability and expression in an m6A-YTHDF1-dependent manner. STAT5 promoted ER stress by activating the PERK/eIF2/CHOP signaling pathway. Furthermore, STAT5 knockdown reversed the effects of ALKBH5 knockdown on OGD/R-induced ER stress and neuroinflammation in HT22 cells. CONCLUSION ALKBH5 knockdown exacerbated ischemic stroke by increasing ER stress-dependent neuroinflammation and neuronal apoptosis via the STAT5/PERK/EIF2α/CHOP signaling pathway in an m6A-YTHDF1-dependent manner.
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Affiliation(s)
- Chujuan Liu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, PR China; Department of Rehabilitation, Hunan Provincial People's Hospital, The First Affifiliated Hospital of Hunan Normal University, Changsha 410006, Hunan Province, PR China
| | - Hui Chen
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, PR China
| | - Xi Tao
- Department of Rehabilitation, Hunan Provincial People's Hospital, The First Affifiliated Hospital of Hunan Normal University, Changsha 410006, Hunan Province, PR China
| | - Chen Li
- Department of Rehabilitation, Hunan Provincial People's Hospital, The First Affifiliated Hospital of Hunan Normal University, Changsha 410006, Hunan Province, PR China
| | - Aiping Li
- Department of Neurological Neurology, Hunan Provincial People's Hospital, The First Affifiliated Hospital of Hunan Normal University, Changsha 410006, Hunan Province, PR China
| | - Wen Wu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, PR China.
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11
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Liu Y, Tang J, Hou Y, Li L, Li W, Yu L, Wang X, Sui C. Acacetin inhibits activation of microglia to improve neuroinflammation after subarachnoid hemorrhage through the PERK signaling pathway mediated autophagy. Hum Exp Toxicol 2024; 43:9603271241251447. [PMID: 38720657 DOI: 10.1177/09603271241251447] [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: 06/11/2024]
Abstract
PURPOSE To explore the effect of acacetin on subarachnoid hemorrhage (SAH) and its possible mechanism. METHODS SAH model of rat was established, and intraperitoneally injected with three doses of acacetin. To verify the role of PERK pathway, we used the CCT020312 (PERK inhibitor) and Tunicamycin (activators of endoplasmic reticulum stress). The SAH score, neurological function score, brain edema content, and Evans blue (EB) exudate were evaluated. Western blot was used to determine the expression of inflammation-associated proteins and PERK pathway. The activation of microglia was also determined through Iba-1 detection. TEM and immunofluorescence staining of LC3B were performed to observe the autophagy degree of SAH rats after acacetin. Tunel/NeuN staining, HE and Nissl' staining were performed for neuronal damage. RESULTS Acacetin increased the neurological function score, reduce brain water content, Evans blue exudation and SAH scores. The microglia in cerebral cortex were activated after SAH, while acacetin could inhibit its activation, and decreased the expression of TNF-α and IL-6 proteins. The pathological staining showed the severe neuronal damage and increased neuronal apoptosis after SAH, while acacetin could improve these pathological changes. We also visualized the alleviated autophagy after acacetin. The expression of Beclin1 and ATF4 proteins were increased, but acacetin could inhibit them. Acacetin also inactivated PERK pathway, which could improve the neuronal injury and neuroinflammation after SAH, inhibit the microglia activation and the overactivated autophagy through PERK pathway. CONCLUSION Acacetin may alleviate neuroinflammation and neuronal damage through PERK pathway, thus having the protective effect on EBI after SAH.
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Affiliation(s)
- Ying Liu
- Department of Neurology, Yantaishan Hospital, Yantai, China
| | - Jianhua Tang
- Department of Neurology, Yantaishan Hospital, Yantai, China
| | - Yiwei Hou
- Department of Neurology, Yantaishan Hospital, Yantai, China
| | - Lu Li
- Department of Neurology, Yantaishan Hospital, Yantai, China
| | - Wenna Li
- Department of Neurology, Yantaishan Hospital, Yantai, China
| | - Ling Yu
- Department of Neurology, Yantaishan Hospital, Yantai, China
| | - Xue Wang
- Department of Neurology, Yantaishan Hospital, Yantai, China
| | - Changbai Sui
- Department of Neurology, Yantaishan Hospital, Yantai, China
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12
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Perluigi M, Di Domenico F, Butterfield DA. Oxidative damage in neurodegeneration: roles in the pathogenesis and progression of Alzheimer disease. Physiol Rev 2024; 104:103-197. [PMID: 37843394 PMCID: PMC11281823 DOI: 10.1152/physrev.00030.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/30/2023] [Accepted: 05/24/2023] [Indexed: 10/17/2023] Open
Abstract
Alzheimer disease (AD) is associated with multiple etiologies and pathological mechanisms, among which oxidative stress (OS) appears as a major determinant. Intriguingly, OS arises in various pathways regulating brain functions, and it seems to link different hypotheses and mechanisms of AD neuropathology with high fidelity. The brain is particularly vulnerable to oxidative damage, mainly because of its unique lipid composition, resulting in an amplified cascade of redox reactions that target several cellular components/functions ultimately leading to neurodegeneration. The present review highlights the "OS hypothesis of AD," including amyloid beta-peptide-associated mechanisms, the role of lipid and protein oxidation unraveled by redox proteomics, and the antioxidant strategies that have been investigated to modulate the progression of AD. Collected studies from our groups and others have contributed to unraveling the close relationships between perturbation of redox homeostasis in the brain and AD neuropathology by elucidating redox-regulated events potentially involved in both the pathogenesis and progression of AD. However, the complexity of AD pathological mechanisms requires an in-depth understanding of several major intracellular pathways affecting redox homeostasis and relevant for brain functions. This understanding is crucial to developing pharmacological strategies targeting OS-mediated toxicity that may potentially contribute to slow AD progression as well as improve the quality of life of persons with this severe dementing disorder.
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Affiliation(s)
- Marzia Perluigi
- Department of Biochemical Sciences "A. Rossi Fanelli," Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Fabio Di Domenico
- Department of Biochemical Sciences "A. Rossi Fanelli," Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - D Allan Butterfield
- Department of Chemistry and Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky, United States
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13
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Šlachtová V, Chovanec M, Rahm M, Vrabel M. Bioorthogonal Chemistry in Cellular Organelles. Top Curr Chem (Cham) 2023; 382:2. [PMID: 38103067 PMCID: PMC10725395 DOI: 10.1007/s41061-023-00446-5] [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: 10/06/2023] [Accepted: 11/12/2023] [Indexed: 12/17/2023]
Abstract
While bioorthogonal reactions are routinely employed in living cells and organisms, their application within individual organelles remains limited. In this review, we highlight diverse examples of bioorthogonal reactions used to investigate the roles of biomolecules and biological processes as well as advanced imaging techniques within cellular organelles. These innovations hold great promise for therapeutic interventions in personalized medicine and precision therapies. We also address existing challenges related to the selectivity and trafficking of subcellular dynamics. Organelle-targeted bioorthogonal reactions have the potential to significantly advance our understanding of cellular organization and function, provide new pathways for basic research and clinical applications, and shape the direction of cell biology and medical research.
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Affiliation(s)
- Veronika Šlachtová
- Department of Bioorganic and Medicinal Chemistry, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 10, Prague 6, Czech Republic
| | - Marek Chovanec
- Department of Bioorganic and Medicinal Chemistry, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 10, Prague 6, Czech Republic
- University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic
| | - Michal Rahm
- Department of Bioorganic and Medicinal Chemistry, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 10, Prague 6, Czech Republic
- University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Czech Republic
| | - Milan Vrabel
- Department of Bioorganic and Medicinal Chemistry, Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 10, Prague 6, Czech Republic.
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14
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Cai XM, Lin Y, Zhang J, Li Y, Tang Z, Zhang X, Jia Y, Wang W, Huang S, Alam P, Zhao Z, Tang BZ. Chromene-based BioAIEgens: 'in-water' synthesis, regiostructure-dependent fluorescence and ER-specific imaging. Natl Sci Rev 2023; 10:nwad233. [PMID: 38188025 PMCID: PMC10769509 DOI: 10.1093/nsr/nwad233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 01/09/2024] Open
Abstract
Exploration of artificial aggregation-induced emission luminogens (AIEgens) has garnered extensive interest in the past two decades. In particular, AIEgens possessing natural characteristics (BioAIEgens) have received more attention recently due to the advantages of biocompatibility, sustainability and renewability. However, the extremely limited number of BioAIEgens extracted from natural sources have retarded their development. Herein, a new class of BioAIEgens based on the natural scaffold of chromene have been facilely synthesized via green reactions in a water system. These compounds show regiostructure-, polymorphism- and substituent-dependent fluorescence, which clearly illustrates the close relationship between the macroscopic properties and hierarchical structure of aggregates. Due to the superior biocompatibility of the natural scaffold, chromene-based BioAIEgens can specifically target the endoplasmic reticulum (ER) via the introduction of tosyl amide. This work has provided a new chromene scaffold for functional BioAIEgens on the basis of green and sustainable 'in-water' synthesis, applicable regiostructure-dependent fluorescence, and effective ER-specific imaging.
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Affiliation(s)
- Xu-Min Cai
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen 518172, China
| | - Yuting Lin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianyu Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Hong Kong 999077, China
| | - Ying Li
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen 518172, China
| | - Zhenguo Tang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xuedan Zhang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ying Jia
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Wenjin Wang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen 518172, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Parvej Alam
- Clinical Translational Research Center of Aggregation-Induced Emission, School of Medicine, The Second Affiliated Hospital, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen 518172, China
| | - Zheng Zhao
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen 518172, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen 518172, China
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15
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Liu H, Dong H, Wang C, Jia W, Wang G, Wang H, Zhong L, Gong L. Key Subdomains of Cerebral Dopamine Neurotrophic Factor Regulate Its Protective Function in 6-Hydroxydopamine-Lesioned PC12 Cells. DNA Cell Biol 2023; 42:680-688. [PMID: 37815547 PMCID: PMC10663698 DOI: 10.1089/dna.2023.0215] [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: 06/20/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 10/11/2023] Open
Abstract
Cerebral dopamine neurotrophic factor (CDNF) is a unique neurotrophic factor (NTF) that has shown significant neuroprotective and neurorestorative functions on midbrain dopaminergic neurons. The secondary structure of human CDNF protein contains eight α-helices. We previously found that two key helices, α1 and α7, regulated the intracellular trafficking and secretion of CDNF protein in different manners. The α1 mutation (M1) induced most CDNF proteins to reside in the endoplasmic reticulum and little be secreted extracellularly, while the α7 mutation (M7) caused the majority of CDNF proteins to be secreted out of the cells and little reside in the cells. However, the regulation of the two mutants on the function of CDNF remains unclear. In this study, we investigated the effects of M1 and M7 on the protective activity of CDNF in PC12 cells, which were treated with 6-hydroxydopamine (6-OHDA) to mimic Parkinson's disease. We found that both M1 and M7 could promote survival and inhibit apoptosis more effectively than Wt in 6-OHDA-lesioned PC12 cells. Therefore, these findings will advance our understanding of the important regulation of subdomains on the function of NTFs.
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Affiliation(s)
- Hao Liu
- The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Haibin Dong
- The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Chunxiao Wang
- The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Wenjuan Jia
- The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Guangqiang Wang
- The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Hua Wang
- The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Lin Zhong
- The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Lei Gong
- The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
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16
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Xie M, Pallegar PN, Parusel S, Nguyen AT, Wu LJ. Regulation of cortical hyperexcitability in amyotrophic lateral sclerosis: focusing on glial mechanisms. Mol Neurodegener 2023; 18:75. [PMID: 37858176 PMCID: PMC10585818 DOI: 10.1186/s13024-023-00665-w] [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: 04/01/2023] [Accepted: 10/05/2023] [Indexed: 10/21/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disorder characterized by the loss of both upper and lower motor neurons, resulting in muscle weakness, atrophy, paralysis, and eventually death. Motor cortical hyperexcitability is a common phenomenon observed at the presymptomatic stage of ALS. Both cell-autonomous (the intrinsic properties of motor neurons) and non-cell-autonomous mechanisms (cells other than motor neurons) are believed to contribute to cortical hyperexcitability. Decoding the pathological relevance of these dynamic changes in motor neurons and glial cells has remained a major challenge. This review summarizes the evidence of cortical hyperexcitability from both clinical and preclinical research, as well as the underlying mechanisms. We discuss the potential role of glial cells, particularly microglia, in regulating abnormal neuronal activity during the disease progression. Identifying early changes such as neuronal hyperexcitability in the motor system may provide new insights for earlier diagnosis of ALS and reveal novel targets to halt the disease progression.
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Affiliation(s)
- Manling Xie
- Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Praveen N Pallegar
- Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
- Mayo Clinic Graduate School of Biomedical Sciences, Rochester, MN, USA
| | - Sebastian Parusel
- Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Aivi T Nguyen
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Long-Jun Wu
- Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA.
- Department of Immunology, Mayo Clinic, Rochester, MN, USA.
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17
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Ghaffari S, Bouchonville KJ, Saleh E, Schmidt RE, Offer SM, Sinha S. BEDwARS: a robust Bayesian approach to bulk gene expression deconvolution with noisy reference signatures. Genome Biol 2023; 24:178. [PMID: 37537644 PMCID: PMC10399072 DOI: 10.1186/s13059-023-03007-7] [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: 10/25/2022] [Accepted: 07/05/2023] [Indexed: 08/05/2023] Open
Abstract
Differential gene expression in bulk transcriptomics data can reflect change of transcript abundance within a cell type and/or change in the proportions of cell types. Expression deconvolution methods can help differentiate these scenarios. BEDwARS is a Bayesian deconvolution method designed to address differences between reference signatures of cell types and corresponding true signatures underlying bulk transcriptomic profiles. BEDwARS is more robust to noisy reference signatures and outperforms leading in-class methods for estimating cell type proportions and signatures. Application of BEDwARS to dihydropyridine dehydrogenase deficiency identified the possible involvement of ciliopathy and impaired translational control in the etiology of the disorder.
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Affiliation(s)
- Saba Ghaffari
- Department of Computer Science, University of Illinois at Urbana-Champaign, Thomas M. Siebel Center, 201 N. Goodwin Ave., Urbana, IL, USA
| | - Kelly J Bouchonville
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Gonda 19-476, 200 First St. SW, Rochester, MN, 55905, USA
| | - Ehsan Saleh
- Department of Computer Science, University of Illinois at Urbana-Champaign, Thomas M. Siebel Center, 201 N. Goodwin Ave., Urbana, IL, USA
| | - Remington E Schmidt
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Gonda 19-476, 200 First St. SW, Rochester, MN, 55905, USA
| | - Steven M Offer
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Gonda 19-476, 200 First St. SW, Rochester, MN, 55905, USA.
| | - Saurabh Sinha
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University, Georgia Institute of Technology, 3108 U.A. Whitaker Bldg., 313 Ferst Drive, Atlanta, GA, 30332, USA.
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18
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Petersen M, Schmiedel N, Dierck F, Hille S, Remes A, Senger F, Schmidt I, Lüllmann-Rauch R, Müller OJ, Frank D, Rangrez AY, Frey N, Kuhn C. Fibin regulates cardiomyocyte hypertrophy and causes protein-aggregate-associated cardiomyopathy in vivo. Front Mol Biosci 2023; 10:1169658. [PMID: 37342207 PMCID: PMC10278231 DOI: 10.3389/fmolb.2023.1169658] [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: 02/21/2023] [Accepted: 05/16/2023] [Indexed: 06/22/2023] Open
Abstract
Despite the identification of numerous molecular pathways modulating cardiac hypertrophy its pathogenesis is not completely understood. In this study we define an unexpected role for Fibin ("fin bud initiation factor homolog") in cardiomyocyte hypertrophy. Via gene expression profiling in hypertrophic murine hearts after transverse aortic constriction we found a significant induction of Fibin. Moreover, Fibin was upregulated in another mouse model of cardiac hypertrophy (calcineurin-transgenics) as well as in patients with dilated cardiomyopathy. Immunoflourescence microscopy revealed subcellular localization of Fibin at the sarcomeric z-disc. Overexpression of Fibin in neonatal rat ventricular cardiomyocytes revealed a strong anti-hypertrophic effect through inhibiting both, NFAT- and SRF-dependent signalling. In contrast, transgenic mice with cardiac-restricted overexpression of Fibin developed dilated cardiomyopathy, accompanied by induction of hypertrophy-associated genes. Moreover, Fibin overexpression accelerated the progression to heart failure in the presence of prohypertrophic stimuli such as pressure overload and calcineurin overexpression. Histological and ultrastructural analyses surprisingly showed large protein aggregates containing Fibin. On the molecular level, aggregate formation was accompanied by an induction of the unfolded protein response subsequent UPR-mediated apoptosis and autophagy. Taken together, we identified Fibin as a novel potent negative regulator of cardiomyocyte hypertrophy in vitro. Yet, heart-specific Fibin overexpression in vivo causes development of a protein-aggregate-associated cardiomyopathy. Because of close similarities to myofibrillar myopathies, Fibin represents a candidate gene for cardiomyopathy and Fibin transgenic mice may provide additional mechanistic insight into aggregate formation in these diseases.
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Affiliation(s)
- Matthias Petersen
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Kiel, Germany
| | - Nesrin Schmiedel
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Kiel, Germany
| | - Franziska Dierck
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Susanne Hille
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Kiel, Germany
| | - Anca Remes
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Kiel, Germany
| | - Frauke Senger
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Kiel, Germany
| | - Inga Schmidt
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | | | - Oliver J. Müller
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Kiel, Germany
| | - Derk Frank
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Kiel, Germany
| | - Ashraf Y. Rangrez
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Norbert Frey
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Christian Kuhn
- Department of Internal Medicine III, University Medical Center of Schleswig-Holstein, Campus Kiel, Kiel, Germany
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19
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Ong HW, Liang Y, Richardson W, Lowry ER, Wells CI, Chen X, Silvestre M, Dempster K, Silvaroli JA, Smith JL, Wichterle H, Pabla NS, Ultanir SK, Bullock AN, Drewry DH, Axtman AD. Discovery of a Potent and Selective CDKL5/GSK3 Chemical Probe That Is Neuroprotective. ACS Chem Neurosci 2023; 14:1672-1685. [PMID: 37084253 PMCID: PMC10161233 DOI: 10.1021/acschemneuro.3c00135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023] Open
Abstract
Despite mediating several essential processes in the brain, including during development, cyclin-dependent kinase-like 5 (CDKL5) remains a poorly characterized human protein kinase. Accordingly, its substrates, functions, and regulatory mechanisms have not been fully described. We realized that availability of a potent and selective small molecule probe targeting CDKL5 could enable illumination of its roles in normal development as well as in diseases where it has become aberrant due to mutation. We prepared analogs of AT-7519, a compound that has advanced to phase II clinical trials and is a known inhibitor of several cyclin-dependent kinases (CDKs) and cyclin-dependent kinase-like kinases (CDKLs). We identified analog 2 as a highly potent and cell-active chemical probe for CDKL5/GSK3 (glycogen synthase kinase 3). Evaluation of its kinome-wide selectivity confirmed that analog 2 demonstrates excellent selectivity and only retains GSK3α/β affinity. We next demonstrated the inhibition of downstream CDKL5 and GSK3α/β signaling and solved a co-crystal structure of analog 2 bound to human CDKL5. A structurally similar analog (4) proved to lack CDKL5 affinity and maintain potent and selective inhibition of GSK3α/β, making it a suitable negative control. Finally, we used our chemical probe pair (2 and 4) to demonstrate that inhibition of CDKL5 and/or GSK3α/β promotes the survival of human motor neurons exposed to endoplasmic reticulum stress. We have demonstrated a neuroprotective phenotype elicited by our chemical probe pair and exemplified the utility of our compounds to characterize the role of CDKL5/GSK3 in neurons and beyond.
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Affiliation(s)
- Han Wee Ong
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Yi Liang
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - William Richardson
- Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
| | - Emily R Lowry
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York 10032, United States
- The Project ALS Therapeutics Core, Columbia University Irving Medical Center, New York, New York 10032, United States
| | - Carrow I Wells
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Xiangrong Chen
- Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
| | - Margaux Silvestre
- Kinases and Brain Development Laboratory, The Francis Crick Institute, London NW1 1AT, U.K
| | - Kelvin Dempster
- Kinases and Brain Development Laboratory, The Francis Crick Institute, London NW1 1AT, U.K
| | - Josie A Silvaroli
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jeffery L Smith
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Hynek Wichterle
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York 10032, United States
- The Project ALS Therapeutics Core, Columbia University Irving Medical Center, New York, New York 10032, United States
- Departments of Neurology, Neuroscience, Rehabilitation and Regenerative Medicine, Columbia University Irving Medical Center, New York, New York 10032, United States
- Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, New York, New York 10032, United States
- Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, New York 10032, United States
| | - Navjot S Pabla
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, United States
| | - Sila K Ultanir
- Kinases and Brain Development Laboratory, The Francis Crick Institute, London NW1 1AT, U.K
| | - Alex N Bullock
- Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
| | - David H Drewry
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- UNC Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Alison D Axtman
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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20
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Makar TK, Guda PR, Ray S, Andhavarapu S, Keledjian K, Gerzanich V, Simard JM, Nimmagadda VKC, Bever CT. Immunomodulatory therapy with glatiramer acetate reduces endoplasmic reticulum stress and mitochondrial dysfunction in experimental autoimmune encephalomyelitis. Sci Rep 2023; 13:5635. [PMID: 37024509 PMCID: PMC10079956 DOI: 10.1038/s41598-023-29852-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 02/11/2023] [Indexed: 04/08/2023] Open
Abstract
Endoplasmic reticulum (ER) stress and mitochondrial dysfunction are found in lesions of multiple sclerosis (MS) and animal models of MS such as experimental autoimmune encephalomyelitis (EAE), and may contribute to the neuronal loss that underlies permanent impairment. We investigated whether glatiramer acetate (GA) can reduce these changes in the spinal cords of chronic EAE mice by using routine histology, immunostaining, and electron microscopy. EAE spinal cord tissue exhibited increased inflammation, demyelination, mitochondrial dysfunction, ER stress, downregulation of NAD+ dependent pathways, and increased neuronal death. GA reversed these pathological changes, suggesting that immunomodulating therapy can indirectly induce neuroprotective effects in the CNS by mediating ER stress.
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Affiliation(s)
- Tapas K Makar
- Department of Neurology, School of Medicine, University of Maryland, College Park, USA.
- Research Service, Institute of Human Virology, VA Maryland Health Care System, 725 W Lombard St, Baltimore, MD, 21201, USA.
| | - Poornachander R Guda
- Department of Neurology, School of Medicine, University of Maryland, College Park, USA
| | - Sugata Ray
- Department of Neurology, School of Medicine, University of Maryland, College Park, USA
| | - Sanketh Andhavarapu
- Department of Neurology, School of Medicine, University of Maryland, College Park, USA
| | - Kaspar Keledjian
- Department of Neurosurgery, School of Medicine, University of Maryland, College Park, USA
| | - Volodymyr Gerzanich
- Department of Neurosurgery, School of Medicine, University of Maryland, College Park, USA
| | - J Marc Simard
- Department of Neurosurgery, School of Medicine, University of Maryland, College Park, USA
| | - Vamshi K C Nimmagadda
- Department of Neurology, School of Medicine, University of Maryland, College Park, USA
| | - Christopher T Bever
- Department of Neurology, School of Medicine, University of Maryland, College Park, USA
- Research Service, Institute of Human Virology, VA Maryland Health Care System, 725 W Lombard St, Baltimore, MD, 21201, USA
- Department of Veterans Affairs, Office of Research and Development, Washington, USA
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21
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Fan Q, Takarada-Iemata M, Okitani N, Tamatani T, Ishii H, Hattori T, Kiryu-Seo S, Kiyama H, Hori O. Brain injury triggers cell-type-specific and time-dependent endoplasmic reticulum stress responses. Glia 2023; 71:667-681. [PMID: 36412235 DOI: 10.1002/glia.24303] [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: 04/01/2022] [Revised: 10/29/2022] [Accepted: 11/03/2022] [Indexed: 11/23/2022]
Abstract
The unfolded protein response (UPR) is a signal transduction network that responds to endoplasmic reticulum (ER) stress by coordinating protein homeostasis to maintain cell viability. The UPR can also trigger cell death when adaptive responses fail to improve protein homeostasis. Despite accumulating evidence suggesting that the UPR plays a role in neurodegenerative diseases and brain insults, our understanding of how ER stress is induced under neuropathological conditions is limited. Here, we investigated the cell- and time-specific patterns of the ER stress response after brain injury using ER stress-activated indicator (ERAI) mice, which enable monitoring of the UPR in vivo via increased fluorescence of a spliced XBP-1 protein fused with the green fluorescent protein (GFP) variant Venus. Following cortical stab injury of ERAI mice, the GFP signal and number of GFP+ cells increased in the ipsilateral cortex throughout the observation period (6 h to 7 days post-injury), confirming the induction of the UPR. GFP signals were observed in injured neurons early (from 6 h) after brain injury. However, non-neuronal cells, mainly endothelial cells followed by astrocytes, accounted for the majority of GFP+ cells after brain injury. Similar results were obtained in a mouse model of focal cerebral ischemia. These findings suggest that activation of the UPR in both neuronal and non-neuronal cells, especially endothelial cells and astrocytes, may play an important role in and could be a potential therapeutic target for acute brain injuries.
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Affiliation(s)
- Qiyan Fan
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Mika Takarada-Iemata
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Nahoko Okitani
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Takashi Tamatani
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Hiroshi Ishii
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Tsuyoshi Hattori
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Sumiko Kiryu-Seo
- Department of Functional Anatomy and Neuroscience, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroshi Kiyama
- Department of Functional Anatomy and Neuroscience, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Osamu Hori
- Department of Neuroanatomy, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
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22
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Yperman K, Kuijpers M. Neuronal endoplasmic reticulum architecture and roles in axonal physiology. Mol Cell Neurosci 2023; 125:103822. [PMID: 36781033 DOI: 10.1016/j.mcn.2023.103822] [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: 11/17/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023] Open
Abstract
The endoplasmic reticulum (ER) is the largest membrane compartment within eukaryotic cells and is emerging as a key coordinator of many cellular processes. The ER can modulate local calcium fluxes and communicate with other organelles like the plasma membrane. The importance of ER in neuronal processes such as neurite growth, axon repair and neurotransmission has recently gained much attention. In this review, we highlight the importance of the ER tubular network in axonal homeostasis and discuss how the generation and maintenance of the thin tubular ER network in axons and synapses, requires a cooperative effort of ER-shaping proteins, cytoskeleton and autophagy processes.
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Affiliation(s)
- Klaas Yperman
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Marijn Kuijpers
- Department of Molecular Neurobiology, Donders Institute for Brain, Cognition and Behaviour and Faculty of Science, Radboud University, 6525 AJ Nijmegen, the Netherlands.
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23
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Ong HW, Liang Y, Richardson W, Lowry ER, Wells CI, Chen X, Silvestre M, Dempster K, Silvaroli JA, Smith JL, Wichterle H, Pabla NS, Ultanir SK, Bullock AN, Drewry DH, Axtman AD. A Potent and Selective CDKL5/GSK3 Chemical Probe is Neuroprotective. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.09.527935. [PMID: 36798313 PMCID: PMC9934649 DOI: 10.1101/2023.02.09.527935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Despite mediating several essential processes in the brain, including during development, cyclin-dependent kinase-like 5 (CDKL5) remains a poorly characterized human protein kinase. Accordingly, its substrates, functions, and regulatory mechanisms have not been fully described. We realized that availability of a potent and selective small molecule probe targeting CDKL5 could enable illumination of its roles in normal development as well as in diseases where it has become aberrant due to mutation. We prepared analogs of AT-7519, a known inhibitor of several cyclin dependent and cyclin-dependent kinase-like kinases that has been advanced into Phase II clinical trials. We identified analog 2 as a highly potent and cell-active chemical probe for CDKL5/GSK3 (glycogen synthase kinase 3). Evaluation of its kinome-wide selectivity confirmed that analog 2 demonstrates excellent selectivity and only retains GSK3α/β affinity. As confirmation that our chemical probe is a high-quality tool to use in directed biological studies, we demonstrated inhibition of downstream CDKL5 and GSK3α/β signaling and solved a co-crystal structure of analog 2 bound to CDKL5. A structurally similar analog ( 4 ) proved to lack CDKL5 affinity and maintain potent and selective inhibition of GSK3α/β. Finally, we used our chemical probe pair ( 2 and 4 ) to demonstrate that inhibition of CDKL5 and/or GSK3α/β promotes the survival of human motor neurons exposed to endoplasmic reticulum (ER) stress. We have demonstrated a neuroprotective phenotype elicited by our chemical probe pair and exemplified the utility of our compounds to characterize the role of CDKL5/GSK3 in neurons and beyond.
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Affiliation(s)
- Han Wee Ong
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, United States of America
| | - Yi Liang
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, United States of America
| | - William Richardson
- Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ, United Kingdom
| | - Emily R. Lowry
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, 10032, United States of America; The Project ALS Therapeutics Core, Columbia University Irving Medical Center, New York, New York, 10032, United States of America
| | - Carrow I. Wells
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, United States of America
| | - Xiangrong Chen
- Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ, United Kingdom
| | - Margaux Silvestre
- Kinases and Brain Development Laboratory, The Francis Crick Institute, London, NW1 1AT, United Kingdom
| | - Kelvin Dempster
- Kinases and Brain Development Laboratory, The Francis Crick Institute, London, NW1 1AT, United Kingdom
| | - Josie A. Silvaroli
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, 43210, United States of America
| | - Jeffery L. Smith
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, United States of America
| | - Hynek Wichterle
- Departments of Pathology and Cell Biology, Neurology, Neuroscience, Rehabilitation and Regenerative Medicine, Columbia University Irving Medical Center, New York, New York, 10032, United States of America; Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, New York, New York, 10032, United States of America; Columbia Stem Cell Initiative, Columbia University Irving Medical Center, New York, New York, 10032, United States of America; The Project ALS Therapeutics Core, Columbia University Irving Medical Center, New York, New York, 10032, United States of America
| | - Navjot S. Pabla
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, 43210, United States of America
| | - Sila K. Ultanir
- Kinases and Brain Development Laboratory, The Francis Crick Institute, London, NW1 1AT, United Kingdom
| | - Alex N. Bullock
- Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ, United Kingdom
| | - David H. Drewry
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, United States of America; UNC Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, United States of America
| | - Alison D. Axtman
- Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, United States of America
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24
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Zhang X, Donskyi IS, Tang W, Deng S, Liu D, Zhang S, Zhao Q, Xing B. Biological Effects of Black Phosphorus Nanomaterials on Mammalian Cells and Animals. Angew Chem Int Ed Engl 2023; 62:e202213336. [PMID: 36218046 PMCID: PMC10107789 DOI: 10.1002/anie.202213336] [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: 09/09/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 12/14/2022]
Abstract
The remarkable progress of applied black phosphorus nanomaterials (BPNMs) is attributed to BP's outstanding properties. Due to its potential for applications, environmental release and subsequent human exposure are virtually inevitable. Therefore, how BPNMs impact biological systems and human health needs to be considered. In this comprehensive Minireview, the most recent advancements in understanding the mechanisms and regulation factors of BPNMs' endogenous toxicity to mammalian systems are presented. These achievements lay the groundwork for an understanding of its biological effects, aimed towards establishing regulatory principles to minimize the adverse health impacts.
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Affiliation(s)
- Xuejiao Zhang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China.,Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Ievgen S Donskyi
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Weihao Tang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China
| | - Shuo Deng
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Daxu Liu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Siyu Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Qing Zhao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China.,Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
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25
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Yoo YM, Joo SS. Melatonin Can Modulate Neurodegenerative Diseases by Regulating Endoplasmic Reticulum Stress. Int J Mol Sci 2023; 24:ijms24032381. [PMID: 36768703 PMCID: PMC9916953 DOI: 10.3390/ijms24032381] [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: 12/26/2022] [Revised: 01/17/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023] Open
Abstract
As people age, their risks of developing degenerative diseases such as cancer, diabetes, Parkinson's Disease (PD), Alzheimer's Disease (AD), rheumatoid arthritis, and osteoporosis are generally increasing. Millions of people worldwide suffer from these diseases as they age. In most countries, neurodegenerative diseases are generally recognized as the number one cause afflicting the elderly. Endoplasmic reticulum (ER) stress has been suggested to be associated with some human neurological diseases, such as PD and AD. Melatonin, a neuroendocrine hormone mainly synthesized in the pineal gland, is involved in pleiotropically biological functions, including the control of the circadian rhythm, immune enhancement, and antioxidant, anti-aging, and anti-tumor effects. Although there are many papers on the prevention or suppression of diseases by melatonin, there are very few papers about the effects of melatonin on ER stress in neurons and neurodegenerative diseases. This paper aims to summarize and present the effects of melatonin reported so far, focusing on its effects on neurons and neurodegenerative diseases related to ER stress. Studies have shown that the primary target molecule of ER stress for melatonin is CHOP, and PERK and GRP78/BiP are the secondary target molecules. Therefore, melatonin is crucial in protecting neurons and treating neurodegeneration against ER stress.
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Affiliation(s)
- Yeong-Min Yoo
- East Coast Life Sciences Institute, College of Life Science, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
- Correspondence: (Y.-M.Y.); (S.S.J.); Tel.: +82-10-2494-5309 (Y.-M.Y.); +82-33-640-2856 (S.S.J.); Fax: +82-33-640-2849 (Y.-M.Y. & S.S.J.)
| | - Seong Soo Joo
- Department of Marine Bioscience, College of Life Science, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
- Correspondence: (Y.-M.Y.); (S.S.J.); Tel.: +82-10-2494-5309 (Y.-M.Y.); +82-33-640-2856 (S.S.J.); Fax: +82-33-640-2849 (Y.-M.Y. & S.S.J.)
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26
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Liu A, Hu J, Yeh TS, Wang C, Tang J, Huang X, Chen B, Huangfu L, Yu W, Zhang L. Neuroprotective Strategies for Stroke by Natural Products: Advances and Perspectives. Curr Neuropharmacol 2023; 21:2283-2309. [PMID: 37458258 PMCID: PMC10556387 DOI: 10.2174/1570159x21666230717144752] [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: 08/22/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 09/09/2023] Open
Abstract
Cerebral ischemic stroke is a disease with high prevalence and incidence. Its management focuses on rapid reperfusion with intravenous thrombolysis and endovascular thrombectomy. Both therapeutic strategies reduce disability, but the therapy time window is short, and the risk of bleeding is high. Natural products (NPs) have played a key role in drug discovery, especially for cancer and infectious diseases. However, they have made little progress in clinical translation and pose challenges to the treatment of stroke. Recently, with the investigation of precise mechanisms in cerebral ischemic stroke and the technological development of NP-based drug discovery, NPs are addressing these challenges and opening up new opportunities in cerebral stroke. Thus, in this review, we first summarize the structure and function of diverse NPs, including flavonoids, phenols, terpenes, lactones, quinones, alkaloids, and glycosides. Then we propose the comprehensive neuroprotective mechanism of NPs in cerebral ischemic stroke, which involves complex cascade processes of oxidative stress, mitochondrial damage, apoptosis or ferroptosis-related cell death, inflammatory response, and disruption of the blood-brain barrier (BBB). Overall, we stress the neuroprotective effect of NPs and their mechanism on cerebral ischemic stroke for a better understanding of the advances and perspective in NPs application that may provide a rationale for the development of innovative therapeutic regimens in ischemic stroke.
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Affiliation(s)
- Aifen Liu
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Jingyan Hu
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Tzu-Shao Yeh
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong 226019, China
| | - Chengniu Wang
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Jilong Tang
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Xiaohong Huang
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Bin Chen
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Liexiang Huangfu
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Weili Yu
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Lei Zhang
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
- Department of Pharmaceutical Botany, School of Pharmacy, Naval Medical University, Shanghai 200433, China
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27
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Pellegrini F, Padovano V, Biscarini S, Santini T, Setti A, Galfrè SG, Silenzi V, Vitiello E, Mariani D, Nicoletti C, Torromino G, De Leonibus E, Martone J, Bozzoni I. A KO mouse model for the lncRNA Lhx1os produces motor neuron alterations and locomotor impairment. iScience 2022; 26:105891. [PMID: 36647387 PMCID: PMC9840152 DOI: 10.1016/j.isci.2022.105891] [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: 08/31/2022] [Revised: 11/22/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
Here, we describe a conserved motor neuron-specific long non-coding RNA, Lhx1os, whose knockout in mice produces motor impairment and postnatal reduction of mature motor neurons (MNs). The ER stress-response pathway result specifically altered with the downregulation of factors involved in the unfolded protein response (UPR). Lhx1os was found to bind the ER-associated PDIA3 disulfide isomerase and to affect the expression of the same set of genes controlled by this protein, indicating that the two factors act in conjunction to modulate the UPR. Altogether, the observed phenotype and function of Lhx1os indicate its important role in the control of MN homeostasis and function.
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Affiliation(s)
- Flaminia Pellegrini
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy,Center for Life Nano- & Neuro-Science@Sapienza of Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Vittorio Padovano
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy,Center for Life Nano- & Neuro-Science@Sapienza of Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Silvia Biscarini
- Center for Life Nano- & Neuro-Science@Sapienza of Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Tiziana Santini
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy,Center for Life Nano- & Neuro-Science@Sapienza of Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Adriano Setti
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy
| | - Silvia Giulia Galfrè
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy
| | - Valentina Silenzi
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy,Center for Life Nano- & Neuro-Science@Sapienza of Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
| | - Erika Vitiello
- Center for Human Technologies (CHT) Istituto Italiano di Tecnologia (IIT), 16152 Genova, Italy
| | - Davide Mariani
- Center for Human Technologies (CHT) Istituto Italiano di Tecnologia (IIT), 16152 Genova, Italy
| | - Carmine Nicoletti
- DAHFMO - Section of Histology and Medical Embryology, Sapienza University of Rome, 00185 Rome, Italy
| | - Giulia Torromino
- Institute of Cellular Biology and Neurobiology "ABT", CNR, Monterotondo, 00015 Rome, Italy
| | - Elvira De Leonibus
- Institute of Cellular Biology and Neurobiology "ABT", CNR, Monterotondo, 00015 Rome, Italy,Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, 80078 Naples, Italy
| | - Julie Martone
- Institute of Molecular Biology and Pathology, CNR, 00185 Rome, Italy,Corresponding author
| | - Irene Bozzoni
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, 00185 Rome, Italy,Center for Life Nano- & Neuro-Science@Sapienza of Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy,Center for Human Technologies (CHT) Istituto Italiano di Tecnologia (IIT), 16152 Genova, Italy,Corresponding author
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28
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Leptin alleviates endoplasmic reticulum stress induced by cerebral ischemia/reperfusion injury via the PI3K/Akt signaling pathway. Biosci Rep 2022; 42:232083. [PMID: 36367210 PMCID: PMC9744719 DOI: 10.1042/bsr20221443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Cerebral ischemic/reperfusion injury (CIRI) is a key factor for the prognosis of ischemic stroke (IS), the leading disease in terms of global disability and fatality rates. Recent studies have shown that endoplasmic reticulum stress (ERS) may be a target against CIRI and that leptin, a peptide hormone, has neuroprotective activity to mitigate CIRI. METHODS An in vitro CIRI model was induced in primary cortical neurons by oxygen-glucose deprivation and reoxygenation (OGD/R) after pretreatment with LY294002 (10 µmol/L) and/or leptin (0.4 mg/L), and cell viability, neuronal morphology and endoplasmic reticulum (ER) dysfunction were evaluated. An in vivo CIRI model was established in rats by middle cerebral artery occlusion and reperfusion (MCAO/R) after the injection of LY294002 (10 μmol/L) and/or leptin (1 mg/kg), and neurological function, infarct volume, cerebral pathological changes, the expression of ERS-related proteins and cell apoptosis were examined. RESULTS In vitro, leptin treatment improved the cell survival rate, ameliorated neuronal pathological morphology and alleviated OGD/R-induced ERS. In vivo, administration of leptin significantly reduced the infarct volume, neurological deficit scores and neuronal apoptosis as well as pathological alterations. In addition, leptin suppressed MCAO/R-induced ERS and may decrease apoptosis by inhibiting ERS-related death and caspase 3 activation. It also regulated expression of the antiapoptotic protein Bcl-2 and the proapoptotic protein Bax in the cortex. Furthermore, the inhibitory effect of leptin on ERS was significantly decreased by the effective phosphatidylinositol 3-kinase (PI3K) inhibitor LY294002. CONCLUSIONS These results confirm that ERS plays an important role in CIRI and that leptin can inhibit the activation of ERS through the PI3K/Akt pathway, thereby alleviating CIRI. These findings provide novel therapeutic targets for IS.
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29
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Qiu R, Wang Z, Wei X, Sui H, Jiang Z, Yu XF. The pathogenesis of anti-signal recognition particle necrotizing myopathy: A Review. Biomed Pharmacother 2022; 156:113936. [DOI: 10.1016/j.biopha.2022.113936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/22/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
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30
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Bai C, Yao Y, Wang Z, Huang X, Wei T, Zou L, Liu N, Zhang T, Tang M. CdTe quantum dots trigger oxidative stress and endoplasmic reticulum stress-induced apoptosis and autophagy in rat Schwann cell line RSC96. J Appl Toxicol 2022; 42:1962-1977. [PMID: 35857417 DOI: 10.1002/jat.4367] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/28/2022] [Accepted: 07/14/2022] [Indexed: 11/07/2022]
Abstract
In the current study, the cytotoxicity and mechanisms of cadmium telluride quantum dots (CdTe QDs) on RSC96 cells were evaluated by exposing different doses of CdTe QDs for 24 h. Two types of cell death, including apoptosis and autophagy, as well as two important organelles, mitochondria and endoplasmic reticulum, were focused after CdTe QDs exposure. The results showed that CdTe QDs induced apoptosis in RSC96 cells in a concentration-dependent manner; promoted the accumulation of intracellular reactive oxygen species; decreased the mitochondrial membrane potential; caused the release of cytochrome c; and also increased the expression of Bcl-2 associated X protein, caspase-3, and cytochrome c proteins and decreased the expression of Bcl-2 protein. Further results also confirmed that CdTe QDs could be internalized by RSC96 cells, and the exposure and internalization of CdTe QDs could induce excessive endoplasmic reticulum stress in the cells, and the expression levels of binding immunoglobulin protein, C/EBP homologous protein, and caspase12 proteins were increased in a concentration-dependent manner. Moreover, autophagy-related proteins LC3II, Beclin1, and P62 all increased after CdTe QDs exposure, suggesting that CdTe QDs exposure both promoted autophagosome formation and inhibited autophagosome degradation, and that CdTe QDs affected the autophagic flow in RSC96 cells. In conclusion, CdTe QDs are able to cause apoptosis and autophagy in RSC96 cells through mitochondrial and endoplasmic reticulum stress pathways, and the possible neurotoxicity of CdTe QDs should be further investigated.
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Affiliation(s)
- Changcun Bai
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Yongshuai Yao
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Zhihui Wang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Xiaoquan Huang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Tingting Wei
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Lingyue Zou
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Na Liu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
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31
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Chen L, Bi M, Zhang Z, Du X, Chen X, Jiao Q, Jiang H. The functions of IRE1α in neurodegenerative diseases: Beyond ER stress. Ageing Res Rev 2022; 82:101774. [PMID: 36332756 DOI: 10.1016/j.arr.2022.101774] [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: 07/08/2022] [Revised: 10/19/2022] [Accepted: 10/29/2022] [Indexed: 11/05/2022]
Abstract
Inositol-requiring enzyme 1 α (IRE1α) is a type I transmembrane protein that resides in the endoplasmic reticulum (ER). IRE1α, which is the primary sensor of ER stress, has been proven to maintain intracellular protein homeostasis by activating X-box binding protein 1 (XBP1). Further studies have revealed novel physiological functions of the IRE1α, such as its roles in mRNA and protein degradation, inflammation, immunity, cell proliferation and cell death. Therefore, the function of IRE1α is not limited to its role in ER stress; IRE1α is also important for regulating other processes related to cellular physiology. Furthermore, IRE1α plays a key role in neurodegenerative diseases that are caused by the phosphorylation of Tau protein, the accumulation of α-synuclein (α-syn) and the toxic effects of mutant Huntingtin (mHtt). Therefore, targeting IRE1α is a valuable approach for treating neurodegenerative diseases and regulating cell functions. This review discusses the role of IRE1α in different cellular processes, and emphasizes the importance of IRE1α in neurodegenerative diseases.
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Affiliation(s)
- Ling Chen
- Department of Physiology, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Mingxia Bi
- Department of Physiology, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Zhen Zhang
- Department of Physiology, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xixun Du
- Department of Physiology, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xi Chen
- Department of Physiology, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Qian Jiao
- Department of Physiology, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, China.
| | - Hong Jiang
- Department of Physiology, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders and State Key Disciplines: Physiology, School of Basic Medicine, Qingdao University, Qingdao, China; University of Health and Rehabilitation Sciences, Qingdao, China.
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32
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Mikhailova EO. Green Synthesis of Platinum Nanoparticles for Biomedical Applications. J Funct Biomater 2022; 13:jfb13040260. [PMID: 36412901 PMCID: PMC9680517 DOI: 10.3390/jfb13040260] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/11/2022] [Accepted: 11/17/2022] [Indexed: 11/24/2022] Open
Abstract
The diverse biological properties of platinum nanoparticles (PtNPs) make them ideal for use in the development of new tools in therapy, diagnostics, and other biomedical purposes. "Green" PtNPs synthesis is of great interest as it is eco-friendly, less energy-consuming and minimizes the amount of toxic by-products. This review is devoted to the biosynthesis properties of platinum nanoparticles based on living organisms (bacteria, fungi, algae, and plants) use. The participation of various biological compounds in PtNPs synthesis is highlighted. The biological activities of "green" platinum nanoparticles (antimicrobial, anticancer, antioxidant, etc.), the proposed mechanisms of influence on target cells and the potential for their further biomedical application are discussed.
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Affiliation(s)
- Ekaterina O Mikhailova
- Institute of Innovation Management, Kazan National Research Technological University, K. Marx Street 68, 420015 Kazan, Russia
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33
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Vantaggiato L, Shaba E, Carleo A, Bezzini D, Pannuzzo G, Luddi A, Piomboni P, Bini L, Bianchi L. Neurodegenerative Disorder Risk in Krabbe Disease Carriers. Int J Mol Sci 2022; 23:ijms232113537. [PMID: 36362324 PMCID: PMC9654610 DOI: 10.3390/ijms232113537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/26/2022] [Accepted: 10/30/2022] [Indexed: 11/09/2022] Open
Abstract
Krabbe disease (KD) is a rare autosomal recessive disorder caused by mutations in the galactocerebrosidase gene (GALC). Defective GALC causes aberrant metabolism of galactolipids present almost exclusively in myelin, with consequent demyelinization and neurodegeneration of the central and peripheral nervous system (NS). KD shares some similar features with other neuropathies and heterozygous carriers of GALC mutations are emerging with an increased risk in developing NS disorders. In this work, we set out to identify possible variations in the proteomic profile of KD-carrier brain to identify altered pathways that may imbalance its homeostasis and that may be associated with neurological disorders. The differential analysis performed on whole brains from 33-day-old twitcher (galc −/−), heterozygous (galc +/−), and wild-type mice highlighted the dysregulation of several multifunctional factors in both heterozygous and twitcher mice. Notably, the KD-carrier mouse, despite its normal phenotype, presents the deregulation of vimentin, receptor of activated protein C kinase 1 (RACK1), myelin basic protein (MBP), 2′,3′-cyclic-nucleotide 3′-phosphodiesterase (CNP), transitional endoplasmic reticulum ATPase (VCP), and N-myc downstream regulated gene 1 protein (NDRG1) as well as changes in the ubiquitinated-protein pattern. Our findings suggest the carrier may be affected by dysfunctions classically associated with neurodegeneration: (i) alteration of (mechano) signaling and intracellular trafficking, (ii) a generalized affection of proteostasis and lipid metabolism, with possible defects in myelin composition and turnover, and (iii) mitochondrion and energy supply dysfunctions.
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Affiliation(s)
- Lorenza Vantaggiato
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Enxhi Shaba
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Alfonso Carleo
- Department of Pulmonology, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
| | - Daiana Bezzini
- Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Giovanna Pannuzzo
- Department of Biochemical and Biotechnological Sciences, Section of Physiology, University of Catania, 95121 Catania, Italy
| | - Alice Luddi
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
| | - Paola Piomboni
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
| | - Luca Bini
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, 53100 Siena, Italy
- Correspondence: ; Tel.: +39-0577-234938
| | - Laura Bianchi
- Functional Proteomics Laboratory, Department of Life Sciences, University of Siena, 53100 Siena, Italy
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Gilbert AK, Pluth MD. Subcellular Delivery of Hydrogen Sulfide Using Small Molecule Donors Impacts Organelle Stress. J Am Chem Soc 2022; 144:17651-17660. [PMID: 36121306 PMCID: PMC9896967 DOI: 10.1021/jacs.2c07225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Hydrogen sulfide (H2S) is an endogenously produced gaseous signaling molecule with important roles in regulating organelle function and stress. Because of its high reactivity, targeted delivery of H2S using small molecule H2S donors has garnered significant interest to minimize off-target effects. Although mitochondrially targeted H2S donors, such as AP39, have been reported previously and exhibit significantly higher potency than nontargeted donors, the expansion of targeted H2S delivery to other subcellular organelles remains largely absent. To fill this key unmet need, we report a library of organelle-targeted H2S donors that localize H2S delivery to specific subcellular organelles, including the Golgi apparatus, lysosome, endoplasmic reticulum, and mitochondria. We measured H2S production in vitro from each donor, confirmed the localization of H2S delivery using organelle-specific H2S responsive fluorescent probes, and demonstrated enhanced potency of these targeted H2S donors in providing protection against organelle-specific stress. We anticipate this class of targeted H2S donors will enable future studies of subcellular roles of H2S and the pathways by which H2S alleviates subcellular organelle stress.
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Cocoa Extract Provides Protection against 6-OHDA Toxicity in SH-SY5Y Dopaminergic Neurons by Targeting PERK. Biomedicines 2022; 10:biomedicines10082009. [PMID: 36009556 PMCID: PMC9405838 DOI: 10.3390/biomedicines10082009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 11/17/2022] Open
Abstract
Parkinson’s disease (PD) represents one of the most common neurodegenerative disorders, characterized by a dopamine (DA) deficiency in striatal synapses and misfolded toxic α-synuclein aggregates with concomitant cytotoxicity. In this regard, the misfolded proteins accumulation in neurodegenerative disorders induces a remarkable perturbations of endoplasmic reticulum (ER) homeostasis leading to persistent ER stress, which in turn, effects protein synthesis, modification, and folding quality control. A large body of evidence suggests that natural products target the ER stress signaling pathway, exerting a potential action in cancers, diabetes, cardiovascular and neurodegenerative diseases. This study aims to assess the neuroprotective effect of cocoa extract and its purified fractions against a cellular model of Parkinson’s disease represented by 6-hydroxydopamine (6-OHDA)-induced SH-SY5Y human neuroblastoma. Our findings demonstrate, for the first time, the ability of cocoa to specifically targets PERK sensor, with significant antioxidant and antiapoptotic activities as both crude and fractioning extracts. In addition, cocoa also showed antiapoptotic properties in 3D cell model and a notable ability to inhibit the accumulation of α-synuclein in 6-OHDA-induced cells. Overall, these results indicate that cocoa exerts neuroprotective effects suggesting a novel possible strategy to prevent or, at least, mitigate neurodegenerative disorders, such as PD.
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36
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ER stress and UPR in Alzheimer's disease: mechanisms, pathogenesis, treatments. Cell Death Dis 2022; 13:706. [PMID: 35970828 PMCID: PMC9378716 DOI: 10.1038/s41419-022-05153-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 01/21/2023]
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disorder characterized by gradual loss of memory and cognitive function, which constitutes a heavy burden on the healthcare system globally. Current therapeutics to interfere with the underlying disease process in AD is still under development. Although many efforts have centered on the toxic forms of Aβ to effectively tackle AD, considering the unsatisfactory results so far it is vital to examine other targets and therapeutic approaches as well. The endoplasmic reticulum (ER) stress refers to the build-up of unfolded or misfolded proteins within the ER, thus, perturbing the ER and cellular homeostasis. Emerging evidence indicates that ER stress contributes to the onset and development of AD. A thorough elucidation of ER stress machinery in AD pathology may help to open up new therapeutic avenues in the management of this devastating condition to relieve the cognitive dementia symptoms. Herein, we aim at deciphering the unique role of ER stress in AD pathogenesis, reviewing key findings, and existing controversy in an attempt to summarize plausible therapeutic interventions in the management of AD pathophysiology.
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37
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Correia da Silva D, Valentão P, Andrade PB, Pereira DM. A Pipeline for Natural Small Molecule Inhibitors of Endoplasmic Reticulum Stress. Front Pharmacol 2022; 13:956154. [PMID: 35935873 PMCID: PMC9354955 DOI: 10.3389/fphar.2022.956154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 06/21/2022] [Indexed: 01/22/2024] Open
Abstract
The homeostasis of eukaryotic cells is inseverable of that of the endoplasmic reticulum (ER). The main function of this organelle is the synthesis and folding of a significant portion of cellular proteins, while it is also the major calcium reservoir of the cell. Upon unresolved ER stress, a set of stress response signaling pathways that are collectively labeled as the unfolded protein response (UPR) is activated. Prolonged or intense activation of this molecular machinery may be deleterious. It is known that compromised ER homeostasis, and consequent UPR activation, characterizes the pathogenesis of neurodegenerative diseases. In an effort to discover new small molecules capable of countering ER stress, we subjected a panel of over 100 natural molecules to a battery of assays designed to evaluate several hallmarks of ER stress. The protective potential of these compounds against ER stress was evaluated at the levels of calcium homeostasis, key gene and protein expression, and levels of protein aggregation in fibroblasts. The most promising compounds were subsequently tested in neuronal cells. This framework resulted in the identification of several bioactive molecules capable of countering ER stress and deleterious events associated to it. Delphinidin stands out as the most promising candidate against neurodegeneration. This compound significantly inhibited the expression of UPR biomarkers, and displayed a strong potential to inhibit protein aggregation in the two aforementioned cell models. Our results indicate that natural products may be a valuable resource in the development of an effective therapeutic strategy against ER stress-related diseases.
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Affiliation(s)
| | | | | | - David M. Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
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Di Domenico F, Lanzillotta C. The disturbance of protein synthesis/degradation homeostasis is a common trait of age-related neurodegenerative disorders. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2022; 132:49-87. [PMID: 36088079 DOI: 10.1016/bs.apcsb.2022.05.008] [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: 01/26/2023]
Abstract
Protein homeostasis or "proteostasis" represent the process that regulates the balance of the intracellular functional and "healthy" proteins. Proteostasis is fundamental to preserve physiological metabolic processes in the cell and it allow to respond to any given stimulus as the expression of components of the proteostasis network is customized according to the proteomic demands of different cellular environments. In conditions that promote unfolding/misfolding of proteins chaperones act as signaling molecules inducing extreme measures to either fix the problem or destroy unfolded proteins. When the chaperone machinery fails under pathological insults unfolded proteins induce the endoplasmic reticulum (ER) stress activating the unfolded protein response (UPR) machinery. The activation of the UPR restores ER proteostasis primarily through the transcriptional remodeling of ER protein folding, trafficking, and degradation pathways, such as the ubiquitin proteasome system (UPS). If these mechanisms do not manage to clear the aberrant proteins, proteasome overload and become defective, and misfolded proteins may form aggregates thus extending the UPR mechanism. These aggregates are then attempted to be cleared by macroautophagy. Impaired proteostasis promote the accumulation of misfolded proteins that exacerbate the damage to chaperones, surveillance systems and/or degradative activities. Remarkably, the removal of toxic misfolded proteins is critical for all cells, but it is especially significant in neurons since these cannot be readily replaced. In neurons, the maintenance of efficient proteostasis is essential to healthy aging since the dysregulation of the proteostasis network can lead to neurodegenerative disease. Each of these brain pathologies is characterized by the repeated misfolding of one of more peculiar proteins, which evade both the protein folding machinery and cellular degradation mechanisms and begins to form aggregates that nucleate out into large fibrillar aggregates. In this chapter we describe the mechanisms, associated with faulty proteostasis, that promote the formation of protein aggregates, amyloid fibrils, intracellular, and extracellular inclusions in the most common nondegenerative disorders also referred to as protein misfolding disorders.
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Affiliation(s)
- Fabio Di Domenico
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, Rome, Italy.
| | - Chiara Lanzillotta
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, Rome, Italy
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39
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Ruan N, Yu X, Li H, Wang Y, Huang C. A HBDI-Based Fluorescent Probe for Labeling Endoplasmic Reticulum in Living Cells. Chem Asian J 2022; 17:e202200383. [PMID: 35674678 DOI: 10.1002/asia.202200383] [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: 04/12/2022] [Revised: 05/27/2022] [Indexed: 11/10/2022]
Abstract
The endoplasmic reticulum (ER) is an important organelle in eukaryotic cells and is closely involved in the synthesis and processing of proteins, as well as the storage, regulation, and release of calcium. A series of signaling pathways within the ER play a crucial part in the pathogenesis of various diseases, including cancer. Thus, it is necessary to design ER-targeting probes to monitor these signaling pathways. Additionally, precision medicine also requires new ER-targeting group to facilitate the delivery of drug cargoes to the ER. However, only a limited number of ER-targeting groups have been used for the design of fluorescent probes for ER imaging in living cells, as well as the development of ER-targeted drug delivery systems. Herein, a new ER-targeting fluorescent probe (BDI-ER) was designed and prepared. BDI-ER contains the hydrophilic fluorophore, derived from the core structure of GFP, and two hydrophobic octadecane chains. The amphipathic nature of BDI-ER facilitates localization in the ER. Live cell imaging demonstrated selective localization of BDI-ER towards ER compared to other organelles. Additionally, co-localization imaging in various cell lines indicate that BDI-ER is effective at targeting the ER.
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Affiliation(s)
- Nanan Ruan
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai, Frontiers Science Research Base of Biomimetic Catalysis, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, China
| | - Xiang Yu
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai, Frontiers Science Research Base of Biomimetic Catalysis, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, China
| | - Huan Li
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai, Frontiers Science Research Base of Biomimetic Catalysis, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, China
| | - Yang Wang
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai, Frontiers Science Research Base of Biomimetic Catalysis, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, China
| | - Chusen Huang
- The Education Ministry Key Laboratory of Resource Chemistry, Shanghai, Frontiers Science Research Base of Biomimetic Catalysis, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, China
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40
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Han X, Wang Y, Huang Y, Wang X, Choo J, Chen L. Fluorescent probes for biomolecule detection under environmental stress. JOURNAL OF HAZARDOUS MATERIALS 2022; 431:128527. [PMID: 35231812 DOI: 10.1016/j.jhazmat.2022.128527] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
The use of fluorescent probes in visible detection has been developed over the last several decades. Biomolecules are essential in the biological processes of organisms, and their distribution and concentration are largely influenced by environmental factors. Significant advances have occurred in the applications of fluorescent probes for the detection of the dynamic localization and quantity of biomolecules during various environmental stress-induced physiological and pathological processes. Herein, we summarize representative examples of small molecule-based fluorescent probes that provide bimolecular information when the organism is under environmental stress. The discussion includes strategies for the design of smart small-molecule fluorescent probes, in addition to their applications in biomolecule imaging under environmental stresses, such as hypoxia, ischemia-reperfusion, hyperthermia/hypothermia, organic/inorganic chemical exposure, oxidative/reductive stress, high glucose stimulation, and drug treatment-induced toxicity. We believe that comprehensive insight into the beneficial applications of fluorescent probes in biomolecule detection under environmental stress should enable the further development and effective application of fluorescent probes in the biochemical and biomedical fields.
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Affiliation(s)
- Xiaoyue Han
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Present: Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, UK; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yue Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Huang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Xiaoyan Wang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Jaebum Choo
- Department of Chemistry, Chung-Ang University, Seoul 06974, South Korea.
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; School of Pharmacy, Binzhou Medical University, Yantai 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
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Hussain Y, Khan H, Efferth T, Alam W. Regulation of endoplasmic reticulum stress by hesperetin: Focus on antitumor and cytoprotective effects. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 100:153985. [PMID: 35358935 DOI: 10.1016/j.phymed.2022.153985] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 10/14/2021] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Cancer is still an all-times issue due to a large and even increasing number of deaths. Impaired genes regulating cell proliferation and apoptosis are targets for the development of novel cancer treatments. HYPOTHESIS Increased transcription of NADPH oxidase activator (NOXA), Bcl2-like11 (BIM), BH3-only proteins and p53 unregulated apoptosis modulator (PUMA) is caused by the imbalance between pro- and anti-apoptotic Bcl-2 proteins due to endoplasmic reticulum (ER) stress. The membranous network of ER is present in all eukaryotic cells. ER stress facilitates the interaction between Bax and PUMA, triggering the release of cytochrome C. As a main intracellular organelle, ER is responsible for translocation as well as post-translation modification and protein folding. RESULTS Hesperetin is a cytoprotective flavonone, which acts against ER stress and protects from cell damage induced by reactive oxygen species (ROS) and reactive nitrogen species (RNS). Hesperetin inhibits lipid peroxidation induced by Fe2+ and l-ascorbic acid in rat brain homogenates. CONCLUSION This review deals with the anticancer effects of hesperetin regarding the regulation of ER stress as a principal mechanism in the pathogenesis of tumors.
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Affiliation(s)
- Yaseen Hussain
- College of Pharmaceutical Sciences, Soochow University, 215123, China
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan.
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany.
| | - Waqas Alam
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan
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Huang CH, Wang FT, Chan WH. Low-dose silver nanoparticles plus methyl mercury exert embryotoxic effects on mouse blastocysts via endoplasmic reticulum stress and mitochondrial apoptosis. Toxicol Res (Camb) 2022; 11:460-474. [PMID: 35782646 PMCID: PMC9244727 DOI: 10.1093/toxres/tfac028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 07/30/2023] Open
Abstract
The health and environmental impacts of the increasing commercial use of silver nanoparticles (AgNPs) are a growing concern. Methyl mercury (MeHg) is a potent toxin that biotransforms from mercury or inorganic mercury compounds in waterways and causes dangerous environmental contamination. However, the potential interactions and combined effects of AgNPs and MeHg are yet to be established. In the current study, we showed that low/non-embryotoxic doses of AgNPs and MeHg interact synergistically to induce embryotoxicity and further explored the underlying mechanisms affecting mouse embryo development. Notably, co-treatment with noncytotoxic concentrations of AgNPs (10 μM) and MeHg (0.1 μM) triggered apoptotic processes and embryotoxicity in mouse blastocysts and evoked intracellular reactive oxygen species (ROS) generation, which was effectively blocked by preincubation with 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (trolox), a classic antioxidant. Further experiments demonstrated that ROS serve as a key upstream inducer of endoplasmic reticulum (ER) stress and mitochondria-dependent apoptotic processes in AgNP/MeHg-induced injury of mouse embryo implantation and pre- and postimplantation development. Our results collectively indicate that AgNP and MeHg at non-embryotoxic concentrations can synergistically evoke ROS, ultimately causing embryotoxicity through promotion of ER stress and mitochondria-dependent apoptotic signaling cascades.
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Affiliation(s)
- Chien-Hsun Huang
- Department of Obstetrics and Gynecology, Taoyuan General Hospital, Ministry of Health & Welfare, Zhongshan Road, Taoyuan District, Taoyuan City 33004, Taiwan
| | - Fu-Ting Wang
- Rehabilitation and Technical Aid Center, Taipei Veterans General Hospital, Section 2, Shipai Road, Beitou District, Taipei City 11217, Taiwan
| | - Wen-Hsiung Chan
- Corresponding author: Department of Bioscience Technology and Center for Nanotechnology, Chung Yuan Christian University, Zhongbei Road, Zhongli District, Taoyuan City 32023, Taiwan.
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43
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González A, Calfío C, Churruca M, Maccioni RB. Glucose metabolism and AD: evidence for a potential diabetes type 3. Alzheimers Res Ther 2022; 14:56. [PMID: 35443732 PMCID: PMC9022265 DOI: 10.1186/s13195-022-00996-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/27/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Alzheimer's disease is the most prevalent cause of dementia in the elderly. Neuronal death and synaptic dysfunctions are considered the main hallmarks of this disease. The latter could be directly associated to an impaired metabolism. In particular, glucose metabolism impairment has demonstrated to be a key regulatory element in the onset and progression of AD, which is why nowadays AD is considered the type 3 diabetes. METHODS We provide a thread regarding the influence of glucose metabolism in AD from three different perspectives: (i) as a regulator of the energy source, (ii) through several metabolic alterations, such as insulin resistance, that modify peripheral signaling pathways that influence activation of the immune system (e.g., insulin resistance, diabetes, etc.), and (iii) as modulators of various key post-translational modifications for protein aggregation, for example, influence on tau hyperphosphorylation and other important modifications, which determine its self-aggregating behavior and hence Alzheimer's pathogenesis. CONCLUSIONS In this revision, we observed a 3 edge-action in which glucose metabolism impairment is acting in the progression of AD: as blockade of energy source (e.g., mitochondrial dysfunction), through metabolic dysregulation and post-translational modifications in key proteins, such as tau. Therefore, the latter would sustain the current hypothesis that AD is, in fact, the novel diabetes type 3.
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Affiliation(s)
- Andrea González
- Laboratory of Neurosciences and Functional Medicine, International Center for Biomedicine (ICC), Avda. Vitacura 3568, D 511-512, Vitacura, Santiago, Chile.,Faculty of Sciences, University of Chile, Las Encinas 3370, Ñuñoa, Santiago, Chile
| | - Camila Calfío
- Laboratory of Neurosciences and Functional Medicine, International Center for Biomedicine (ICC), Avda. Vitacura 3568, D 511-512, Vitacura, Santiago, Chile.,Faculty of Sciences, University of Chile, Las Encinas 3370, Ñuñoa, Santiago, Chile
| | - Macarena Churruca
- Laboratory of Neurosciences and Functional Medicine, International Center for Biomedicine (ICC), Avda. Vitacura 3568, D 511-512, Vitacura, Santiago, Chile
| | - Ricardo B Maccioni
- Laboratory of Neurosciences and Functional Medicine, International Center for Biomedicine (ICC), Avda. Vitacura 3568, D 511-512, Vitacura, Santiago, Chile. .,Faculty of Sciences, University of Chile, Las Encinas 3370, Ñuñoa, Santiago, Chile. .,Department of Neurology, Faculty of Medicine East Campus Hospital Salvador, University of Chile, Salvador 486, Providencia, Santiago, Chile.
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44
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Inhibition of the ISR abrogates mGluR5-dependent long-term depression and spatial memory deficits in a rat model of Alzheimer's disease. Transl Psychiatry 2022; 12:96. [PMID: 35260557 PMCID: PMC8904583 DOI: 10.1038/s41398-022-01862-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/18/2022] [Accepted: 02/18/2022] [Indexed: 12/13/2022] Open
Abstract
Soluble amyloid-β-protein (Aβ) oligomers, a major hallmark of AD, trigger the integrated stress response (ISR) via multiple pathologies including neuronal hyperactivation, microvascular hypoxia, and neuroinflammation. Increasing eIF2α phosphorylation, the core event of ISR, facilitates metabotropic glutamate receptor (mGluR)-dependent long-term depression (LTD), and suppressing its phosphorylation has the opposite effect. Having found the facilitation of mGluR5-LTD by Aβ in live rats, we wondered if suppressing eIF2α phosphorylation cascade would protect against the synaptic plasticity and cognitive disrupting effects of Aβ. We demonstrate here that the facilitation of mGluR5-LTD in a delayed rat model by single i.c.v. injection of synthetic Aβ1-42. Systemic administration of the small-molecule inhibitor of the ISR called ISRIB (trans-isomer) prevents Aβ-facilitated LTD and abrogates spatial learning and memory deficits in the hippocampus in exogenous synthetic Aβ-injected rats. Moreover, ex vivo evidence indicates that ISRIB normalizes protein synthesis in the hippocampus. Targeting the ISR by suppressing the eIF2α phosphorylation cascade with the eIF2B activator ISRIB may provide protective effects against the synaptic and cognitive disruptive effects of Aβ which likely mediate the early stage of sporadic AD.
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45
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Singh D, Rajput D, Kanvah S. Fluorescent probes for targeting endoplasmic reticulum: design strategies and their applications. Chem Commun (Camb) 2022; 58:2413-2429. [PMID: 35089303 DOI: 10.1039/d1cc06944f] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Advances in developing organic fluorescent probes and fluorescence imaging techniques have enhanced our understanding of cell biology. The endoplasmic reticulum (ER) is a dynamic structure that plays a crucial role in protein synthesis, post-translational modifications, and lipid metabolism. The malfunction of ER contributes to several physiological and pathological conditions. Therefore, the investigations on the imaging and role of ER have attracted a lot of attention. Due to their simplicity, synthetic tunability, photostability, high quantum yields, easier cellular uptake, and lower cytotoxicity, organic fluorophores offer invaluable tools for the precision targeting of various cellular organelles and probe ER dynamics. The precision staining is made possible by incorporating specific functional groups having preferential and local organelle biomolecular interactions. For instance, functional moieties such as methyl sulfonamide, sulfonylurea, and pentafluorophenyl assist in ER targeting and thus have become essential tools to probe a deeper understanding of their dynamics. Furthermore, dual-function fluorescent probes that simultaneously image ER and detect specific physiological parameters or biological analytes were achieved by introducing special recognition or chemically reactive sites. This article attempts to comprehensively capture various design strategies currently employed by researchers utilizing small organic molecules to target the ER and detect specific analytes.
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Affiliation(s)
- Deepmala Singh
- Department of Chemistry, Indian Institute of Technology, Gandhinagar Palaj, Gandhinagar, Gujarat-382055, India.
| | - Deeksha Rajput
- Department of Chemistry, Indian Institute of Technology, Gandhinagar Palaj, Gandhinagar, Gujarat-382055, India.
| | - Sriram Kanvah
- Department of Chemistry, Indian Institute of Technology, Gandhinagar Palaj, Gandhinagar, Gujarat-382055, India.
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46
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Reduced DNAJC3 Expression Affects Protein Translocation across the ER Membrane and Attenuates the Down-Modulating Effect of the Translocation Inhibitor Cyclotriazadisulfonamide. Int J Mol Sci 2022; 23:ijms23020584. [PMID: 35054769 PMCID: PMC8775681 DOI: 10.3390/ijms23020584] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/03/2022] [Accepted: 01/05/2022] [Indexed: 12/20/2022] Open
Abstract
One of the reported substrates for the endoplasmic reticulum (ER) translocation inhibitor cyclotriazadisulfonamide (CADA) is DNAJC3, a chaperone of the unfolded protein response during ER stress. In this study, we investigated the impact of altered DNAJC3 protein levels on the inhibitory activity of CADA. By comparing WT DNAJC3 with a CADA-resistant DNAJC3 mutant, we observed the enhanced sensitivity of human CD4, PTK7 and ERLEC1 for CADA when DNAJC3 was expressed at high levels. Combined treatment of CADA with a proteasome inhibitor resulted in synergistic inhibition of protein translocation and in the rescue of a small preprotein fraction, which presumably corresponds to the CADA affected protein fraction that is stalled at the Sec61 translocon. We demonstrate that DNAJC3 enhances the protein translation of a reporter protein that is expressed downstream of the CADA-stalled substrate, suggesting that DNAJC3 promotes the clearance of the clogged translocon. We propose a model in which a reduced DNAJC3 level by CADA slows down the clearance of CADA-stalled substrates. This results in higher residual translocation into the ER lumen due to the longer dwelling time of the temporarily stalled substrates in the translocon. Thus, by directly reducing DNAJC3 protein levels, CADA attenuates its net down-modulating effect on its substrates.
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47
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Singh D, Shewale D, Sengupta A, Soppina V, Kanvah S. Lutidine Derivatives for Live-Cell Imaging of Mitochondria and Endoplasmic Reticulum. Org Biomol Chem 2022; 20:7047-7055. [DOI: 10.1039/d2ob00995a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mitochondria and endoplasmic reticulum (ER) are highly dynamic subcellular structures essential for several biological functions. The development of non-toxic, wash-free fluorophores to visualize these structures inside cells aid in understanding...
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48
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Liu Y, Ding R, Xu Z, Xue Y, Zhang D, Zhang Y, Li W, Li X. Roles and Mechanisms of the Protein Quality Control System in Alzheimer's Disease. Int J Mol Sci 2021; 23:345. [PMID: 35008771 PMCID: PMC8745298 DOI: 10.3390/ijms23010345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 12/11/2022] Open
Abstract
Alzheimer's disease (AD) is characterized by the deposition of senile plaques (SPs) and the formation of neurofibrillary tangles (NTFs), as well as neuronal dysfunctions in the brain, but in fact, patients have shown a sustained disease progression for at least 10 to 15 years before these pathologic biomarkers can be detected. Consequently, as the most common chronic neurological disease in the elderly, the challenge of AD treatment is that it is short of effective biomarkers for early diagnosis. The protein quality control system is a collection of cellular pathways that can recognize damaged proteins and thereby modulate their turnover. Abundant evidence indicates that the accumulation of abnormal proteins in AD is closely related to the dysfunction of the protein quality control system. In particular, it is the synthesis, degradation, and removal of essential biological components that have already changed in the early stage of AD, which further encourages us to pay more attention to the protein quality control system. The review mainly focuses on the endoplasmic reticulum system (ERS), autophagy-lysosome system (ALS) and the ubiquitin-proteasome system (UPS), and deeply discusses the relationship between the protein quality control system and the abnormal proteins of AD, which can not only help us to understand how and why the complex regulatory system becomes malfunctional during AD progression, but also provide more novel therapeutic strategies to prevent the development of AD.
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Affiliation(s)
| | | | | | | | | | | | | | - Xing Li
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou 450001, China; (Y.L.); (R.D.); (Z.X.); (Y.X.); (D.Z.); (Y.Z.); (W.L.)
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49
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ER-misfolded proteins become sequestered with mitochondria and impair mitochondrial function. Commun Biol 2021; 4:1350. [PMID: 34857875 PMCID: PMC8640021 DOI: 10.1038/s42003-021-02873-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 11/08/2021] [Indexed: 01/23/2023] Open
Abstract
Proteostasis is a challenge for cellular organisms, as all known protein synthesis machineries are error-prone. Here we show by cell fractionation and microscopy studies that misfolded proteins formed in the endoplasmic reticulum can become associated with and partly transported into mitochondria, resulting in impaired mitochondrial function. Blocking the endoplasmic reticulum-mitochondria encounter structure (ERMES), but not the mitochondrial sorting and assembly machinery (SAM) or the mitochondrial surveillance pathway components Msp1 and Vms1, abrogated mitochondrial sequestration of ER-misfolded proteins. We term this mitochondria-associated proteostatic mechanism for ER-misfolded proteins ERAMS (ER-associated mitochondrial sequestration). We testify to the relevance of this pathway by using mutant α-1-antitrypsin as an example of a human disease-related misfolded ER protein, and we hypothesize that ERAMS plays a role in pathological features such as mitochondrial dysfunction.
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50
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Zhou S, Zhong Z, Huang P, Xiang B, Li X, Dong H, Zhang G, Wu Y, Li P. IL-6/STAT3 Induced Neuron Apoptosis in Hypoxia by Downregulating ATF6 Expression. Front Physiol 2021; 12:729925. [PMID: 34744770 PMCID: PMC8567049 DOI: 10.3389/fphys.2021.729925] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/23/2021] [Indexed: 12/30/2022] Open
Abstract
Background: Neuron apoptosis, regulated by endoplasmic reticulum (ER) stress in the hippocampus, is an essential factor influencing the cognitive impairment induced by hypobaric hypoxia. Hypoxia mainly changes the activating transcription factor (ATF6) pathway of ER stress. However, the role of ATF6 in neuron survival, apoptosis, and upstream regulation is still controversial. Methods: We established a hypobaric hypoxia-induced C57BL/6 murine model and cell lines exposed to 1% hypoxia, including PC12 and HT22. First, we tested the expressions of interleukin 6 (IL-6), IL-1β, and IL-10 in C57BL/6 mice's hippocampus under hypoxia using enzyme-linked immunosorbent assay (ELISA). We determined the signal transducer and activator of transcription 3 (STAT3) phosphorylation at tyrosine (Tyr)705 by western blot and the expression of ATF6, 78-kDa glucose-regulated protein (GRP78), and C/-EBP homologous protein (CHOP) related to ER stress by immunofluorescence (IF), western blot, and qRT-PCR; they were then verified on the cell model. Additionally, IL-6 (40 ng/mL) and STAT3 siRNA were used to treat the PC12 cells for 48 and 4 h to activate or silence STAT3, respectively. Subsequently, the cells of siRNA group were exposed to 1% hypoxia for 48 h. Furthermore, the ATF6 and CHOP expressions were detected with western blot and qRT-PCR. Finally, we examined the binding of STAT3 to the ATF6 promoter by chromatin immunoprecipitation (ChIP)-seq. Results: The results showed that IL-6 increased, IL-10 decreased in the hypoxia group, and IL-1β showed no difference between the hypoxia and the normoxia groups. Neuron apoptosis was significantly elevated by exposure to hypoxia for 48h in PC12 cells. The hypobaric hypoxia-induced ER stress proteins, ATF6, GRP78, and CHOP, and the p-STAT3 (Tyr705) expressions increased both in in vivo and in vitro. Besides, STAT3 silencing significantly promoted the ATF6 expression and inhibited CHOP, while STAT3 activation downregulated the expression of ATF6 and upregulated CHOP in PC12 cells. The ChIP-seq assay demonstrated that p-STAT3 (Tyr705) protein could bind to the ATF6 promoter region in HT22 cells. Conclusion: Phosphorylation of STAT3 at the Tyr705 site contributes to hypoxia-induced neuron apoptosis by downregulating ATF6, which might explain the inflammatory reaction and apoptosis of the hippocampal neurons induced by ER stress.
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Affiliation(s)
- Simin Zhou
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Zhifeng Zhong
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Pei Huang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Bin Xiang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Xiaoxu Li
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China.,Department of High Altitude Physiology and Pathology, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Huaping Dong
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Gang Zhang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Yu Wu
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
| | - Peng Li
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Army Medical University, Chongqing, China.,Key Laboratory of High Altitude Medicine, Army Medical University, Chongqing, China
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