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Marques M, Ramos B, Albuquerque H, Pereira M, Ribeiro DR, Nunes A, Sarabando J, Brás D, Ferreira AR, Vitorino R, Amorim MJ, Silva AM, Soares AR, Ribeiro D. Influenza A virus propagation requires the activation of the unfolded protein response and the accumulation of insoluble protein aggregates. iScience 2024; 27:109100. [PMID: 38405606 PMCID: PMC10884513 DOI: 10.1016/j.isci.2024.109100] [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: 07/31/2023] [Revised: 12/11/2023] [Accepted: 01/30/2024] [Indexed: 02/27/2024] Open
Abstract
Influenza A virus (IAV) employs multiple strategies to manipulate cellular mechanisms and support proper virion formation and propagation. In this study, we performed a detailed analysis of the interplay between IAV and the host cells' proteostasis throughout the entire infectious cycle. We reveal that IAV infection activates the inositol requiring enzyme 1 (IRE1) branch of the unfolded protein response, and that this activation is important for an efficient infection. We further observed the accumulation of virus-induced insoluble protein aggregates, containing both viral and host proteins, associated with a dysregulation of the host cell RNA metabolism. Our data indicate that this accumulation is important for IAV propagation and favors the final steps of the infection cycle, more specifically the virion assembly. These findings reveal additional mechanisms by which IAV disrupts host proteostasis and uncovers new cellular targets that can be explored for the development of host-directed antiviral strategies.
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Affiliation(s)
- Mariana Marques
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Bruno Ramos
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Hélio Albuquerque
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Marisa Pereira
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Diana Roberta Ribeiro
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Alexandre Nunes
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Jéssica Sarabando
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Daniela Brás
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal
| | - Ana Rita Ferreira
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Rui Vitorino
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Maria João Amorim
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal
- Católica Biomedical Research Centre, Católica Medical School, Universidade Católica Portuguesa, 1649-023 Lisboa, Portugal
| | - Artur M.S. Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Ana Raquel Soares
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
| | - Daniela Ribeiro
- Institute of Biomedicine – iBiMED, Department of Medical Sciences University of Aveiro, Aveiro, Portugal
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Sousa JLC, Albuquerque HMT, Silva AMS. Drug Discovery Based on Oxygen and Nitrogen (Non-)Heterocyclic Compounds Developed @LAQV-REQUI MTE/Aveiro. Pharmaceuticals (Basel) 2023; 16:1668. [PMID: 38139794 PMCID: PMC10747949 DOI: 10.3390/ph16121668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/18/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
Artur Silva's research group has a long history in the field of medicinal chemistry. The development of new synthetic methods for oxygen (mostly polyphenols, e.g., 2- and 3-styrylchromones, xanthones, flavones) and nitrogen (e.g., pyrazoles, triazoles, acridones, 4-quinolones) heterocyclic compounds in order to be assessed as antioxidant, anti-inflammatory, antidiabetic, and anticancer agents has been the main core work of our research interests. Additionally, the synthesis of steroid-type compounds as anti-Alzheimer drugs as well as of several chromophores as important dyes for cellular imaging broadened our research scope. In this review article, we intend to provide an enlightened appraisal of all the bioactive compounds and their biological properties that were synthesized and studied by our research group in the last two decades.
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Affiliation(s)
| | | | - Artur M. S. Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (J.L.C.S.); (H.M.T.A.)
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Makshakova ON, Bogdanova LR, Faizullin DA, Ermakova EA, Zuev YF. Sulfated Polysaccharides as a Fighter with Protein Non-Physiological Aggregation: The Role of Polysaccharide Flexibility and Charge Density. Int J Mol Sci 2023; 24:16223. [PMID: 38003413 PMCID: PMC10671430 DOI: 10.3390/ijms242216223] [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: 09/23/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Proteins can lose native functionality due to non-physiological aggregation. In this work, we have shown the power of sulfated polysaccharides as a natural assistant to restore damaged protein structures. Protein aggregates enriched by cross-β structures are a characteristic of amyloid fibrils related to different health disorders. Our recent studies demonstrated that model fibrils of hen egg white lysozyme (HEWL) can be disaggregated and renatured by some negatively charged polysaccharides. In the current work, using the same model protein system and FTIR spectroscopy, we studied the role of conformation and charge distribution along the polysaccharide chain in the protein secondary structure conversion. The effects of three carrageenans (κ, ι, and λ) possessing from one to three sulfate groups per disaccharide unit were shown to be different. κ-Carrageenan was able to fully eliminate cross-β structures and complete the renaturation process. ι-Carrageenan only initiated the formation of native-like β-structures in HEWL, retaining most of the cross-β structures. In contrast, λ-carrageenan even increased the content of amyloid cross-β structures. Furthermore, κ-carrageenan in rigid helical conformation loses its capability to restore protein native structures, largely increasing the amount of amyloid cross-β structures. Our findings create a platform for the design of novel natural chaperons to counteract protein unfolding.
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Affiliation(s)
- Olga N. Makshakova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevsky Street, 420111 Kazan, Russia
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Hammouda MM, Elattar KM, Rashed MM, Osman AMA. Synthesis and biological activities of bicyclic pyridines integrated steroid hybrid. Steroids 2023; 199:109287. [PMID: 37517592 DOI: 10.1016/j.steroids.2023.109287] [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: 06/18/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 08/01/2023]
Abstract
Reports on structural modification of heterosteroids through various reactions, and developed synthetic routes have considerably increased over the last decade. The present review encompasses the applicable approaches dealing with the utility of reactive moieties in various steroids for the synthesis of fused bicyclic pyridines, and binary bicyclic pyridines all over the years. The different sections include the synthesis of steroids-fused, and binary quinolines, pyridopyrimidines, imidazopyridines, spirocyclic imidazopyridines, pyrazolopyridines, thienopyridines, pyridinyl-thiazoles, and tetrazolopyridine hybrids, as well as, the diverse biological applications of these heterocyclic steroids. The researchers' interest was principally focused on investigating the flexibility of synthetic strategies for various derivatives of natural steroids and building proposals based on heterocyclic steroids for drug discovery, biological assessments, and synthetic applications.
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Affiliation(s)
- Mohamed M Hammouda
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; Chemistry Department, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura 35516, Egypt.
| | - Khaled M Elattar
- Unit of Genetic Engineering and Biotechnology, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura 35516, Egypt.
| | - Marwa M Rashed
- Toxicology Department, Mansoura Hospital, Faculty of Medicine, Mansoura University, El-Gomhoria Street, Mansoura 35516, Egypt.
| | - Amany M A Osman
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; Chemistry Department, Faculty of Science, Menoufia University, Shebin El-Koam, Egypt.
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Mansuri S, Mukherjee T, Kanvah S. Fluorescent sterol probes for intracellular transport, imaging, and therapeutics. Curr Opin Chem Biol 2022; 71:102222. [PMID: 36219959 DOI: 10.1016/j.cbpa.2022.102222] [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: 07/28/2022] [Revised: 09/01/2022] [Accepted: 09/12/2022] [Indexed: 01/27/2023]
Abstract
Sterols play a significant role in many physiological processes affecting membrane organization, transport, permeability, and signal transduction. The development of fluorescent sterol analogs that have immediate functional relevance to the natural biomolecules is one approach to understanding the sterol-driven physiological processes. Visualizing cellular compartments with tailor-made fluorescent molecules through specific labeling methods enables organelle targeting and reveals dynamic information. In this review, we focus on the recent literature published between 2020 and 2022, with particular emphasis on extrinsic fluorophores and their investigations of sterol-driven biological processes involving sterol transport, biomolecular interactions, and biological imaging.
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Affiliation(s)
- Shabnam Mansuri
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, 382055, India
| | - Tarushyam Mukherjee
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, 382055, India
| | - Sriram Kanvah
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, 382055, India.
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Matos MJ, Blanco MJ. Medicinal Chemistry in Portugal and Spain: A Strong Iberian Alliance. ACS Med Chem Lett 2022; 13:871-872. [PMID: 35707154 DOI: 10.1021/acsmedchemlett.2c00194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Maria João Matos
- University of Porto, 4099-002 Porto, Portugal.,University of Santiago de Compostela, 15705 Santiago de Compostela, Spain
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