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Li LR, Chen L, Sun ZJ. Igniting hope: Harnessing NLRP3 inflammasome-GSDMD-mediated pyroptosis for cancer immunotherapy. Life Sci 2024; 354:122951. [PMID: 39127315 DOI: 10.1016/j.lfs.2024.122951] [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: 05/10/2024] [Revised: 07/19/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
In the contemporary landscape of oncology, immunotherapy, represented by immune checkpoint blockade (ICB) therapy, stands out as a beacon of innovation in cancer treatment. Despite its promise, the therapy's progression is hindered by suboptimal clinical response rates. Addressing this challenge, the modulation of the NLRP3 inflammasome-GSDMD-mediated pyroptosis pathway holds promise as a means to augment the efficacy of immunotherapy. In the pathway, the NLRP3 inflammasome serves as a pivotal molecular sensor that responds to inflammatory stimuli within the organism. Its activation leads to the release of cytokines interleukin 1β and interleukin 18 through the cleavage of GSDMD, thereby forming membrane pores and potentially resulting in pyroptosis. This cascade of processes exerts a profound impact on tumor development and progression, with its function and expression exhibiting variability across different tumor types and developmental stages. Consequently, understanding the specific roles of the NLRP3 inflammasome and GSDMD-mediated pyroptosis in diverse tumors is imperative for comprehending tumorigenesis and crafting precise therapeutic strategies. This review aims to elucidate the structure and activation mechanisms of the NLRP3 inflammasome, as well as the induction mechanisms of GSDMD-mediated pyroptosis. Additionally, we provide a comprehensive overview of the involvement of this pathway in various cancer types and its applications in tumor immunotherapy, nanotherapy, and other fields. Emphasis is placed on the feasibility of leveraging this approach to enhance ICB therapy within the field of immunotherapy. Furthermore, we discuss the potential applications of this pathway in other immunotherapy methods, such as chimeric antigen receptor T-cell (CAR-T) therapy and tumor vaccines.
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Affiliation(s)
- Ling-Rui Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
| | - Lei Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China.
| | - Zhi-Jun Sun
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, China.
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152
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Lemos FO, de Ridder I, Wagner L, Bootman MD, Bultynck G, Yule DI, Parys JB. Tetrameric, active PKM2 inhibits IP 3 receptors, potentially requiring GRP75 as an additional interaction partner. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119796. [PMID: 39038610 DOI: 10.1016/j.bbamcr.2024.119796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 06/05/2024] [Accepted: 07/08/2024] [Indexed: 07/24/2024]
Abstract
Pyruvate kinase M2 (PKM2) is a key glycolytic enzyme interacting with the inositol 1,4,5-trisphosphate receptor (IP3R). This interaction suppresses IP3R-mediated cytosolic [Ca2+] rises. As PKM2 exists in monomeric, dimeric and tetrameric forms displaying different properties including catalytic activity, we investigated the molecular determinants of PKM2 enabling its interaction with IP3Rs. Treatment of HeLa cells with TEPP-46, a compound stabilizing the tetrameric form of PKM2, increased both its catalytic activity and the suppression of IP3R-mediated Ca2+ signals. Consistently, in PKM2 knock-out HeLa cells, PKM2C424L, a tetrameric, highly active PKM2 mutant, but not inactive PKM2K270M or the less active PKM2K305Q, suppressed IP3R-mediated Ca2+ release. Surprisingly, however, in vitro assays did not reveal a direct interaction between purified PKM2 and either the purified Fragment 5 of IP3R1 (a.a. 1932-2216) or the therein located D5SD peptide (a.a. 2078-2098 of IP3R1), the presumed interaction sites of PKM2 on the IP3R. Moreover, on-nucleus patch clamp of heterologously expressed IP3R1 in DT40 cells devoid of endogenous IP3Rs did not reveal any functional effect of purified wild-type PKM2, mutant PKM2 or PKM1 proteins. These results indicate that an additional factor mediates the regulation of the IP3R by PKM2 in cellulo. Immunoprecipitation of GRP75 using HeLa cell lysates co-precipitated IP3R1, IP3R3 and PKM2. Moreover, the D5SD peptide not only disrupted PKM2:IP3R, but also PKM2:GRP75 and GRP75:IP3R interactions. Our data therefore support a model in which catalytically active, tetrameric PKM2 suppresses Ca2+ signaling via the IP3R through a multiprotein complex involving GRP75.
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Affiliation(s)
- Fernanda O Lemos
- Laboratory of Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine & Leuven Kanker Instituut, KU Leuven, Herestraat 49, Campus Gasthuisberg O&N1 - B802, 3000 Leuven, Belgium.
| | - Ian de Ridder
- Laboratory of Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine & Leuven Kanker Instituut, KU Leuven, Herestraat 49, Campus Gasthuisberg O&N1 - B802, 3000 Leuven, Belgium
| | - Larry Wagner
- Department of Pharmacology and Physiology, University of Rochester, Rochester, NY 14642, USA
| | - Martin D Bootman
- School of Life, Health and Chemical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
| | - Geert Bultynck
- Laboratory of Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine & Leuven Kanker Instituut, KU Leuven, Herestraat 49, Campus Gasthuisberg O&N1 - B802, 3000 Leuven, Belgium
| | - David I Yule
- Department of Pharmacology and Physiology, University of Rochester, Rochester, NY 14642, USA
| | - Jan B Parys
- Laboratory of Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine & Leuven Kanker Instituut, KU Leuven, Herestraat 49, Campus Gasthuisberg O&N1 - B802, 3000 Leuven, Belgium.
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153
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Guo J, Su K, Wang L, Feng B, You X, Deng M, Toh WS, Wu J, Cheng B, Xia J. Poly( p-coumaric acid) nanoparticles alleviate temporomandibular joint osteoarthritis by inhibiting chondrocyte ferroptosis. Bioact Mater 2024; 40:212-226. [PMID: 38973989 PMCID: PMC11224931 DOI: 10.1016/j.bioactmat.2024.06.007] [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: 03/28/2024] [Revised: 06/03/2024] [Accepted: 06/03/2024] [Indexed: 07/09/2024] Open
Abstract
Oxidative stress and inflammation are key drivers of osteoarthritis (OA) pathogenesis and disease progression. Herein we report the synthesis of poly(p-coumaric) nanoparticles (PCA NPs) from p-courmaic acid (p-CA), a naturally occurring phytophenolic acid, to be a multifunctional and drug-free therapeutic for temporomandibular joint osteoarthritis (TMJOA). Compared to hyaluronic acid (HA) that is clinically given as viscosupplementation, PCA NPs exhibited long-term efficacy, superior anti-oxidant and anti-inflammatory properties in alleviating TMJOA and repairing the TMJ cartilage and subchondral bone in a rat model of TMJOA. Notably, TMJ repair mediated by PCA NPs could be attributed to their anti-oxidant and anti-inflammatory properties in enhancing cell proliferation and matrix synthesis, while reducing inflammation, oxidative stress, matrix degradation, and chondrocyte ferroptosis. Overall, our study demonstrates a multifunctional nanoparticle, synthesized from natural p-coumaric acid, that is stable and possess potent antioxidant, anti-inflammatory properties and ferroptosis inhibition, beneficial for treatment of TMJOA.
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Affiliation(s)
- Jiaxin Guo
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Kai Su
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Liying Wang
- Department of Hematology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, PR China
| | - Bingyu Feng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Xinru You
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Miao Deng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Wei Seong Toh
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore
- Faculty of Dentistry, National University of Singapore, 119085, Singapore
| | - Jun Wu
- Bioscience and Biomedical Engineering Thrust, The Hong Kong University of Science and Technology (Guangzhou), Nansha, Guangzhou, 511455, PR China
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Bin Cheng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
| | - Juan Xia
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, PR China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, PR China
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154
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Cao W, Huang C, Zhou X, Zhou S, Deng Y. Engineering two-component systems for advanced biosensing: From architecture to applications in biotechnology. Biotechnol Adv 2024; 75:108404. [PMID: 39002783 DOI: 10.1016/j.biotechadv.2024.108404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 06/05/2024] [Accepted: 07/07/2024] [Indexed: 07/15/2024]
Abstract
Two-component systems (TCSs) are prevalent signaling pathways in bacteria. These systems mediate phosphotransfer between histidine kinase and a response regulator, facilitating responses to diverse physical, chemical, and biological stimuli. Advancements in synthetic and structural biology have repurposed TCSs for applications in monitoring heavy metals, disease-associated biomarkers, and the production of bioproducts. However, the utility of many TCS biosensors is hindered by undesired performance due to the lack of effective engineering methods. Here, we briefly discuss the architectures and regulatory mechanisms of TCSs. We also summarize the recent advancements in TCS engineering by experimental or computational-based methods to fine-tune the biosensor functional parameters, such as response curve and specificity. Engineered TCSs have great potential in the medical, environmental, and biorefinery fields, demonstrating a crucial role in a wide area of biotechnology.
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Affiliation(s)
- Wenyan Cao
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Chao Huang
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Xuan Zhou
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Shenghu Zhou
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Yu Deng
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, China.
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155
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Liu Y, Gu B, Shi J, Fu C, Zhang X, Chen X, Yang R, Lyu X. Inverse metabolic engineering based on metabonomics for efficient production of hydroxytyrosol by Saccharomyces cerevisiae. BIORESOURCE TECHNOLOGY 2024; 409:131187. [PMID: 39094965 DOI: 10.1016/j.biortech.2024.131187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 07/23/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
Metabolic engineering provides a powerful approach to efficiently produce valuable compounds, with the aid of emerging gene editing tools and diverse metabolic regulation strategies. However, apart from the current known biochemical pathway information, a variety of unclear constraints commonly limited the optimization space of cell phenotype. Hydroxytyrosol is an important phenolic compound that serves various industries with prominent health-beneficial properties. In this study, the inverse metabolic engineering based on metabolome analysis was customized and implemented to disclose the hidden rate-limiting steps and thus to improve hydroxytyrosol production in Saccharomyces cerevisiae (S. cerevisiae). The potential rate-limiting steps involved three modules that were eliminated individually via reinforcing and balancing metabolic flow, optimizing cofactor supply, and weakening the competitive pathways. Ultimately, a 118.53 % improvement in hydroxytyrosol production (639.84 mg/L) was achieved by inverse metabolic engineering.
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Affiliation(s)
- Yingjie Liu
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Bixuan Gu
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Jiahua Shi
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, St Lucia, QLD, Australia
| | - Changchun Fu
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Xuepeng Zhang
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Xinqi Chen
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Ruijin Yang
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Xiaomei Lyu
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China.
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156
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Guo Y, Chen J, Liao H, Wu K, Xiao Z, Duan Q, Wang J, Shu Y. Defense of cabbages against herbivore cutworm Spodoptera litura under Cd stress and insect herbivory stress simultaneously. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 358:124519. [PMID: 38986765 DOI: 10.1016/j.envpol.2024.124519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 06/20/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
Biotic (e.g., heavy metal) and abiotic stress (e.g., insect attack) can affect plant chemical defense, but little is known about the changes in plant defense when they occur concurrently. Herein, the impacts of heavy metal cadmium (Cd) stress and insect herbivory stress on the direct and indirect defense of two cultivar cabbages of Brassica campestris, the low-Cd cultivar Lvbao701 and the high-Cd cultivar Chicaixin No.4, against the herbivore cutworm Spodoptera litura were investigated. Although 10 mg kg-1 Cd stress alone inhibited leaf secondary metabolites (total phenolics, flavonoids), it reduced the feeding rate and odor selection of S. litura towards both cultivar cabbages, especially for Lvbao701, by increasing leaf Cd content and repellent volatile organic compounds (VOCs) (6-methyl-5-hepten-2-one, 7,9-di-tert-butyl-1-oxaspiro (4,5)deca-6,9-diene-2,8-dione), and reducing soluble sugar and attractive VOCs (3-methyl-3-pentanol, 2,5-hexanedione, tetradecanal). Under 2.5 mg kg-1 Cd and herbivory stress, although leaf total phenolics and flavonoids increased significantly, the feeding rate and odor selection of S. litura towards both cultivar cabbages increased, especially for Chicaixin No.4, indicating that the chemical defense of cabbages was depressed. Therefore, Cd stress alone improved the insect resistance of cabbages, whereas herbivory stress weakened the enhanced cabbages defence by Cd stress. The low-Cd cultivar Lvbao701 presented stronger insect resistance than Chicaixin No.4, suggesting that Lvbao701 application in Cd-polluted soil can not only decrease Cd transmission to higher levels in the food chain but also reduce pest occurrence.
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Affiliation(s)
- Yeshan Guo
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jin Chen
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; School of Life Sciences, Guizhou Normal University, Guiyang 550025, China
| | - Huimin Liao
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Kaixuan Wu
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Zhenggao Xiao
- Institute of Environmental Processes and Pollution Control, and School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Qijiao Duan
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jianwu Wang
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yinghua Shu
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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157
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Pathak A, Willis KG, Bankaitis VA, McDermott MI. Mammalian START-like phosphatidylinositol transfer proteins - Physiological perspectives and roles in cancer biology. Biochim Biophys Acta Mol Cell Biol Lipids 2024; 1869:159529. [PMID: 38945251 DOI: 10.1016/j.bbalip.2024.159529] [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: 03/29/2024] [Revised: 06/09/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024]
Abstract
PtdIns and its phosphorylated derivatives, the phosphoinositides, are the biochemical components of a major pathway of intracellular signaling in all eukaryotic cells. These lipids are few in terms of cohort of unique positional isomers, and are quantitatively minor species of the bulk cellular lipidome. Nevertheless, phosphoinositides regulate an impressively diverse set of biological processes. It is from that perspective that perturbations in phosphoinositide-dependent signaling pathways are increasingly being recognized as causal foundations of many human diseases - including cancer. Although phosphatidylinositol transfer proteins (PITPs) are not enzymes, these proteins are physiologically significant regulators of phosphoinositide signaling. As such, PITPs are conserved throughout the eukaryotic kingdom. Their biological importance notwithstanding, PITPs remain understudied. Herein, we review current information regarding PITP biology primarily focusing on how derangements in PITP function disrupt key signaling/developmental pathways and are associated with a growing list of pathologies in mammals.
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Affiliation(s)
- Adrija Pathak
- Department of Cell Biology and Genetics, Texas A&M Health Science Center, College Station, Texas, 77843, USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Katelyn G Willis
- Department of Cell Biology and Genetics, Texas A&M Health Science Center, College Station, Texas, 77843, USA
| | - Vytas A Bankaitis
- Department of Cell Biology and Genetics, Texas A&M Health Science Center, College Station, Texas, 77843, USA; Department of Chemistry, Texas A&M University, College Station, Texas 77843 USA
| | - Mark I McDermott
- Department of Cell Biology and Genetics, Texas A&M Health Science Center, College Station, Texas, 77843, USA.
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158
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Luo M, Feng B, Zhu W, Liang Z, Xu W, Fu J, Miao L, Dong Z. Proteomics and metabolomics analysis of American shad (Alosa sapidissima) liver responses to heat stress. Comp Biochem Physiol A Mol Integr Physiol 2024; 296:111686. [PMID: 38936462 DOI: 10.1016/j.cbpa.2024.111686] [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: 06/06/2024] [Revised: 06/24/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024]
Abstract
The dramatic changes in the global climate pose a major threat to the survival of many organisms, including fish. To date, the regulatory mechanisms behind the physiological responses of fish to temperature changes have been studied, and a comprehensive analysis of the regulatory mechanisms of temperature tolerance will help to propose effective strategies for fish to cope with global warming. In this study, we investigated the expression profiles of proteins and metabolites in liver tissues of American shad (Alosa sapidissima) corresponding to different water temperatures (24 °C, 27 °C and 30 °C) at various times (1-month intervals) under natural culture conditions. Proteomic analysis showed that the expression levels of the heat shock protein family (e.g. HSPE1, HSP70, HSPA5 and HSPA.1) increase significantly with temperature and that many differentially expressed proteins were highly enriched especially in pathways related to the endoplasmic reticulum, oxidative phosphorylation and glycolysis/gluconeogenesis processes. In addition, the results of conjoint metabolomics and proteomics analysis suggested that the contents of several important amino acids and chemical compounds, including L-serine, L-isoleucine, L-cystine, choline and betaine, changed significantly under high-temperature environmental stress, affecting the metabolic levels of starch, amino acid and glucose, which is thought to represent a possible energy conservation method for A. sapidissima to cope with rapid changes in external temperature. In summary, our findings demonstrate that living under high temperatures for a long period of time leads to different physiological defense responses in A. sapidissima, which provides some new ideas for analyzing the molecular regulatory patterns of adaptation to high temperature and also provides a theoretical basis for the subsequent improvement of fish culture in response to global warming.
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Affiliation(s)
- Mingkun Luo
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Bingbing Feng
- Fisheries Technology Extension Center of Jiangsu Province, Nanjing, 210036, China
| | - Wenbin Zhu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Zhengyuan Liang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China
| | - Wei Xu
- Fisheries Technology Extension Center of Jiangsu Province, Nanjing, 210036, China
| | - Jianjun Fu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Linghong Miao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Zaijie Dong
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Wuxi, 214081, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China.
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159
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Chen JL, Taghavi A, Frank AJ, Fountain MA, Choudhary S, Roy S, Childs-Disney JL, Disney MD. NMR structures of small molecules bound to a model of a CUG RNA repeat expansion. Bioorg Med Chem Lett 2024; 111:129888. [PMID: 39002937 DOI: 10.1016/j.bmcl.2024.129888] [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: 06/08/2024] [Accepted: 07/10/2024] [Indexed: 07/15/2024]
Abstract
Trinucleotide repeat expansions fold into long, stable hairpins and cause a variety of incurable RNA gain-of-function diseases such as Huntington's disease, the myotonic dystrophies, and spinocerebellar ataxias. One approach for treating these diseases is to bind small molecules to these structured RNAs. Both Huntington's disease-like 2 (HDL2) and myotonic dystrophy type 1 (DM1) are caused by a r(CUG) repeat expansion, or r(CUG)exp. The RNA folds into a hairpin structure with a periodic array of 1 × 1 nucleotide UU loops (5'CUG/3'GUC; where the underlined nucleotides indicate the Us in the internal loop) that sequester various RNA-binding proteins (RBPs) and hence the source of its gain-of-function. Here, we report nuclear magnetic resonance (NMR)-refined structures of single 5'CUG/3'GUC motifs in complex with three different small molecules, a di-guandinobenzoate (1), a derivative of 1 where the guanidino groups have been exchanged for imidazole (2), and a quinoline with improved drug-like properties (3). These structures were determined using NMR spectroscopy and simulated annealing with restrained molecular dynamics (MD). Compounds 1, 2, and 3 formed stacking and hydrogen bonding interactions with the 5'CUG/3'GUC motif. Compound 3 also formed van der Waals interactions with the internal loop. The global structure of each RNA-small molecule complexes retains an A-form conformation, while the internal loops are still dynamic but to a lesser extent compared to the unbound form. These results aid our understanding of ligand-RNA interactions and enable structure-based design of small molecules with improved binding affinity for and biological activity against r(CUG)exp. As the first ever reported structures of a r(CUG) repeat bound to ligands, these structures can enable virtual screening campaigns combined with machine learning assisted de novo design.
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Affiliation(s)
- Jonathan L Chen
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Biochemistry and Biophysics, Center for RNA Biology, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Amirhossein Taghavi
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Alexander J Frank
- Department of Chemistry and Biochemistry, State University of New York at Fredonia, Fredonia, NY 14063, USA
| | - Matthew A Fountain
- Department of Chemistry and Biochemistry, State University of New York at Fredonia, Fredonia, NY 14063, USA
| | - Shruti Choudhary
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Soma Roy
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Jessica L Childs-Disney
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Matthew D Disney
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, 130 Scripps Way, Jupiter, FL 33458, USA.
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160
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Mosbach V, Puccio H. A multiple animal and cellular models approach to study frataxin deficiency in Friedreich Ataxia. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119809. [PMID: 39134123 DOI: 10.1016/j.bbamcr.2024.119809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 08/15/2024]
Abstract
Friedreich's ataxia (FA) is one of the most frequent inherited recessive ataxias characterized by a progressive sensory and spinocerebellar ataxia. The main causative mutation is a GAA repeat expansion in the first intron of the frataxin (FXN) gene which leads to a transcriptional silencing of the gene resulting in a deficit in FXN protein. The nature of the mutation (an unstable GAA expansion), as well as the multi-systemic nature of the disease (with neural and non-neural sites affected) make the generation of models for Friedreich's ataxia quite challenging. Over the years, several cellular and animal models for FA have been developed. These models are all complementary and possess their own strengths to investigate different aspects of the disease, such as the epigenetics of the locus or the pathophysiology of the disease, as well as being used to developed novel therapeutic approaches. This review will explore the recent advancements in the different mammalian models developed for FA.
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Affiliation(s)
- Valentine Mosbach
- Institut NeuroMyoGene-PGNM UCBL-CNRS UMR5261 INSERM U1315, Lyon, France
| | - Hélène Puccio
- Institut NeuroMyoGene-PGNM UCBL-CNRS UMR5261 INSERM U1315, Lyon, France.
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161
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Porozhan Y, Carstensen M, Thouroude S, Costallat M, Rachez C, Batsché E, Petersen T, Christensen T, Muchardt C. Defective Integrator activity shapes the transcriptome of patients with multiple sclerosis. Life Sci Alliance 2024; 7:e202402586. [PMID: 39029934 PMCID: PMC11259605 DOI: 10.26508/lsa.202402586] [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: 01/11/2024] [Revised: 07/10/2024] [Accepted: 07/10/2024] [Indexed: 07/21/2024] Open
Abstract
HP1α/CBX5 is an epigenetic regulator with a suspected role in multiple sclerosis (MS). Here, using high-depth RNA sequencing on monocytes, we identified a subset of MS patients with reduced CBX5 expression, correlating with progressive stages of the disease and extensive transcriptomic alterations. Examination of rare non-coding RNA species in these patients revealed impaired maturation/degradation of U snRNAs and enhancer RNAs, indicative of reduced activity of the Integrator, a complex with suspected links to increased MS risk. At protein-coding genes, compromised Integrator activity manifested in reduced pre-mRNA splicing efficiency and altered expression of genes regulated by RNA polymerase II pause-release. Inactivation of Cbx5 in the mouse mirrored most of these transcriptional defects and resulted in hypersensitivity to experimental autoimmune encephalomyelitis. Collectively, our observations suggested a major contribution of the Integrator complex in safeguarding against transcriptional anomalies characteristic of MS, with HP1α/CBX5 emerging as an unexpected regulator of this complex's activity. These findings bring novel insights into the transcriptional aspects of MS and provide potential new criteria for patient stratification.
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Affiliation(s)
- Yevheniia Porozhan
- https://ror.org/01c2cjg59 Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Biological Adaptation and Ageing, Sorbonne Université, Paris, France
| | - Mikkel Carstensen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Forum, Aarhus, Denmark
| | - Sandrine Thouroude
- https://ror.org/01c2cjg59 Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Biological Adaptation and Ageing, Sorbonne Université, Paris, France
| | - Mickael Costallat
- https://ror.org/01c2cjg59 Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Biological Adaptation and Ageing, Sorbonne Université, Paris, France
| | - Christophe Rachez
- https://ror.org/01c2cjg59 Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Biological Adaptation and Ageing, Sorbonne Université, Paris, France
| | - Eric Batsché
- https://ror.org/01c2cjg59 Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Biological Adaptation and Ageing, Sorbonne Université, Paris, France
| | - Thor Petersen
- Department of Neurology, Hospital of Southern Jutland and Research Unit in Neurology, Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | | | - Christian Muchardt
- https://ror.org/01c2cjg59 Institut de Biologie Paris-Seine (IBPS), CNRS UMR 8256, Biological Adaptation and Ageing, Sorbonne Université, Paris, France
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162
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Patke R, Harris AE, Woodcock CL, Thompson R, Santos R, Kumari A, Allegrucci C, Archer N, Gudas LJ, Robinson BD, Persson JL, Fray R, Jeyapalan J, Rutland CS, Rakha E, Madhusudan S, Emes RD, Muyangwa-Semenova M, Alsaleem M, de Brot S, Green W, Ratan H, Mongan NP, Lothion-Roy J. Epitranscriptomic mechanisms of androgen signalling and prostate cancer. Neoplasia 2024; 56:101032. [PMID: 39033689 PMCID: PMC11295630 DOI: 10.1016/j.neo.2024.101032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/08/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
Prostate cancer (PCa) is the second most common cancer diagnosed in men. While radical prostatectomy and radiotherapy are often successful in treating localised disease, post-treatment recurrence is common. As the androgen receptor (AR) and androgen hormones play an essential role in prostate carcinogenesis and progression, androgen deprivation therapy (ADT) is often used to deprive PCa cells of the pro-proliferative effect of androgens. ADTs act by either blocking androgen biosynthesis (e.g. abiraterone) or blocking AR function (e.g. bicalutamide, enzalutamide, apalutamide, darolutamide). ADT is often effective in initially suppressing PCa growth and progression, yet emergence of castrate-resistant PCa and progression to neuroendocrine-like PCa following ADT are major clinical challenges. For this reason, there is an urgent need to identify novel approaches to modulate androgen signalling to impede PCa progression whilst also preventing or delaying therapy resistance. The mechanistic convergence of androgen and epitranscriptomic signalling offers a potential novel approach to treat PCa. The epitranscriptome involves covalent modifications of mRNA, notably, in the context of this review, the N(6)-methyladenosine (m6A) modification. m6A is involved in the regulation of mRNA splicing, stability, and translation, and has recently been shown to play a role in PCa and androgen signalling. The m6A modification is dynamically regulated by the METTL3-containing methyltransferase complex, and the FTO and ALKBH5 RNA demethylases. Given the need for novel approaches to treat PCa, there is significant interest in new therapies that target m6A that modulate AR expression and androgen signalling. This review critically summarises the potential benefit of such epitranscriptomic therapies for PCa patients.
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Affiliation(s)
- Rodhan Patke
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Anna E Harris
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Corinne L Woodcock
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Rachel Thompson
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Rute Santos
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Amber Kumari
- Biodiscovery Institute, University of Nottingham, UK
| | - Cinzia Allegrucci
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Nathan Archer
- School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Lorraine J Gudas
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
| | - Brian D Robinson
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
| | - Jenny L Persson
- Department of Molecular Biology, Umea University, Umea, Sweden
| | - Rupert Fray
- School of Biosciences, University of Nottingham, UK
| | - Jennie Jeyapalan
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Catrin S Rutland
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK
| | - Emad Rakha
- School of Medicine, University of Nottingham, UK; Nottingham University NHS Trust, Nottingham, UK
| | - Srinivasan Madhusudan
- School of Medicine, University of Nottingham, UK; Nottingham University NHS Trust, Nottingham, UK
| | - Richard D Emes
- Research and Innovation, Nottingham Trent University, UK
| | | | - Mansour Alsaleem
- Biodiscovery Institute, University of Nottingham, UK; Unit of Scientific Research, Applied College, Qassim University, Qassim, Saudi Arabia
| | - Simone de Brot
- Institute of Animal Pathology, University of Bern, Switzerland
| | - William Green
- Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Hari Ratan
- Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Nigel P Mongan
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK; Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA.
| | - Jennifer Lothion-Roy
- Biodiscovery Institute, University of Nottingham, UK; School of Veterinary Medicine and Science, University of Nottingham, UK.
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163
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He P, Hu S, Zhang Y, Xiang Z, Zhu A, Chen S. Transcription factor AbrB regulates ROS generation and clearance in Bacillus licheniformis. Microbiol Res 2024; 287:127843. [PMID: 39024796 DOI: 10.1016/j.micres.2024.127843] [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: 04/09/2024] [Revised: 07/15/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
Oxidative damage caused by the accumulation of reactive oxygen species (ROS) is one of the main obstacles to the improvement of microbial cell growth and fermentation characteristics under adverse environments. And the antioxidant capacity of cells will increase with the cell growth. Here, we found that a transition state transcription factor AbrB related to changes in cell growth status could regulate the accumulation of ROS and antioxidant capacity in Bacillus licheniformis. The results showed that the accumulation of intracellular ROS was reduced by 23.91 % and the cell survival rates were increased by 1.77-fold under 0.5 mM H2O2 when AbrB was knocked out. We further mapped regulatory target genes of AbrB related to ROS generation or clearance based on our previously analyzed transcriptome sequencing. It proved that AbrB could promote ROS generation via upregulating the synthesis of oxidase and siderophores, and negatively regulating the synthesis of iron chelators (pulcherriminic acid, and H2S). Additionally, AbrB could inhibit ROS clearance by negatively regulating the synthesis of antioxidase (superoxide dismutase, catalase, peroxidase, thioredoxin, thioredoxin reductase) and cysteine. Those results illustrated that the inactivation of AbrB during the stationary phase, along with its control over ROS generation and clearance, might represent a vital self-protection mechanism during cell evolution. Overall, the systematic investigation of the multi-pathway regulation network of ROS generation and clearance highlights the important function of AbrB in maintaining intracellular redox balance.
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Affiliation(s)
- Penghui He
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Shiying Hu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Yongjia Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Zhengwei Xiang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Anting Zhu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, China
| | - Shouwen Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, China; Key Laboratory of Green Chemical Technology of Fujian Province University, College of Ecological and Resource Engineering, Wuyi University, Wuyishan 354300, China.
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164
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Chen K, Zhang L, Ding Y, Sun Z, Meng J, Luo R, Zhou X, Liu L, Yang S. Activity-based protein profiling in drug/pesticide discovery: Recent advances in target identification of antibacterial compounds. Bioorg Chem 2024; 151:107655. [PMID: 39032407 DOI: 10.1016/j.bioorg.2024.107655] [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: 04/26/2024] [Revised: 06/18/2024] [Accepted: 07/14/2024] [Indexed: 07/23/2024]
Abstract
Given the escalating incidence of bacterial diseases and the challenge posed by pathogenic bacterial resistance, it is imperative to identify appropriate methodologies for conducting proteomic investigations on bacteria, and thereby promoting the target-based drug/pesticide discovery. Interestingly, a novel technology termed "activity-based protein profiling" (ABPP) has been developed to identify the target proteins of active molecules. However, few studies have summarized advancements in ABPP for identifying the target proteins in antibacterial-active compounds. In order to accelerate the discovery and development of new drug/agrochemical discovery, we provide a concise overview of ABPP and its recent applications in antibacterial agent discovery. Diversiform cases were cited to demonstrate the potential of ABPP for target identification though highlighting the design strategies and summarizing the reported target protein of antibacterial compounds. Overall, this review is an excellent reference for probe design towards antibacterial compounds, and offers a new perspective of ABPP in bactericide development.
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Affiliation(s)
- Kunlun Chen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Ling Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yue Ding
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhaoju Sun
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jiao Meng
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Rongshuang Luo
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiang Zhou
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
| | - Liwei Liu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
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165
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Oney-Hawthorne SD, Barondeau DP. Fe-S cluster biosynthesis and maturation: Mass spectrometry-based methods advancing the field. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119784. [PMID: 38908802 DOI: 10.1016/j.bbamcr.2024.119784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/25/2024] [Accepted: 06/10/2024] [Indexed: 06/24/2024]
Abstract
Iron‑sulfur (FeS) clusters are inorganic protein cofactors that perform essential functions in many physiological processes. Spectroscopic techniques have historically been used to elucidate details of FeS cluster type, their assembly and transfer, and changes in redox and ligand binding properties. Structural probes of protein topology, complex formation, and conformational dynamics are also necessary to fully understand these FeS protein systems. Recent developments in mass spectrometry (MS) instrumentation and methods provide new tools to investigate FeS cluster and structural properties. With the unique advantage of sampling all species in a mixture, MS-based methods can be utilized as a powerful complementary approach to probe native dynamic heterogeneity, interrogate protein folding and unfolding equilibria, and provide extensive insight into protein binding partners within an entire proteome. Here, we highlight key advances in FeS protein studies made possible by MS methodology and contribute an outlook for its role in the field.
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Affiliation(s)
| | - David P Barondeau
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA.
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166
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Su B, Xu F, Zhong J, Xu X, Lin J. Rational design on loop regions for precisely regulating flexibility of catalytic center to mitigate overoxidation of prazole sulfides by Baeyer-Villiger monooxygenase. Bioorg Chem 2024; 151:107718. [PMID: 39142195 DOI: 10.1016/j.bioorg.2024.107718] [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: 06/21/2024] [Revised: 08/08/2024] [Accepted: 08/11/2024] [Indexed: 08/16/2024]
Abstract
S-omeprazole and R-rabeprazole are important proton pump inhibitors (PPIs) used for treating peptic disorders. They can be biosynthesized from the corresponding sulfide catalyzed by Baeyer-Villiger monooxygenases (BVMOs). During the development of BVMOs for target sulfoxide preparation, stereoselectivity and overoxidation degree are important factors considered most. In the present study, LnPAMO-Mu15 designed previously and TtPAMO from Thermothelomyces thermophilus showed high (S)- and (R)-configuration stereoselectivity respectively towards thioethers. TtPAMO was found to be capable of oxidating omeprazole sulfide (OPS) and rabeprazole sulfide (RPS) into R-omeprazole and R-rabeprazole respectively. However, the overoxidation issue existed and limited the application of TtPAMO in the biosynthesis of sulfoxides. The structural mechanisms for adverse stereoselectivity between LnPAMO-Mu15 and TtPAMO towards OPS and the overoxidation of OPS by TtPAMO were revealed, based on which, TtPAMO was rationally designed focused on the flexibility of loops near catalytic sites. The variant TtPAMO-S482Y was screened out with lowest overoxidation degree towards OPS and RPS due to the decreased flexibility of catalytic center than TtPAMO. The success in this study not only proved the rationality of the overoxidation mechanism proposed in this study but also provided hints for the development of BVMOs towards thioether substrate for corresponding sulfoxide preparation.
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Affiliation(s)
- Bingmei Su
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China; Institute of Enzyme Catalysis and Synthetic Biotechnology, Fuzhou University, Fuzhou 350108, China
| | - Fahui Xu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China
| | - Jinchang Zhong
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China
| | - Xinqi Xu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China; Institute of Enzyme Catalysis and Synthetic Biotechnology, Fuzhou University, Fuzhou 350108, China.
| | - Juan Lin
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China; Institute of Enzyme Catalysis and Synthetic Biotechnology, Fuzhou University, Fuzhou 350108, China.
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167
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Song J. Molecular Mechanisms of Phase Separation and Amyloidosis of ALS/FTD-linked FUS and TDP-43. Aging Dis 2024; 15:2084-2112. [PMID: 38029395 PMCID: PMC11346406 DOI: 10.14336/ad.2023.1118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/18/2023] [Indexed: 12/01/2023] Open
Abstract
FUS and TDP-43, two RNA-binding proteins from the heterogeneous nuclear ribonucleoprotein family, have gained significant attention in the field of neurodegenerative diseases due to their association with amyotrophic lateral sclerosis (ALS) and frontotemporal degeneration (FTD). They possess folded domains for binding ATP and various nucleic acids including DNA and RNA, as well as substantial intrinsically disordered regions (IDRs) including prion-like domains (PLDs) and RG-/RGG-rich regions. They play vital roles in various cellular processes, including transcription, splicing, microRNA maturation, RNA stability and transport and DNA repair. In particular, they are key components for forming ribonucleoprotein granules and stress granules (SGs) through homotypic or heterotypic liquid-liquid phase separation (LLPS). Strikingly, liquid-like droplets formed by FUS and TDP-43 may undergo aging to transform into less dynamic assemblies such as hydrogels, inclusions, and amyloid fibrils, which are the pathological hallmarks of ALS and FTD. This review aims to synthesize and consolidate the biophysical knowledge of the sequences, structures, stability, dynamics, and inter-domain interactions of FUS and TDP-43 domains, so as to shed light on the molecular mechanisms underlying their liquid-liquid phase separation (LLPS) and amyloidosis. The review further delves into the mechanisms through which ALS-causing mutants of the well-folded hPFN1 disrupt the dynamics of LLPS of FUS prion-like domain, providing key insights into a potential mechanism for misfolding/aggregation-prone proteins to cause neurodegenerative diseases and aging by gain of functions. With better understanding of different biophysical aspects of FUS and TDP-43, the ultimate goal is to develop drugs targeting LLPS and amyloidosis, which could mediate protein homeostasis within cells and lead to new treatments for currently intractable diseases, particularly neurodegenerative diseases such as ALS, FTD and aging. However, the study of membrane-less organelles and condensates is still in its infancy and therefore the review also highlights key questions that require future investigation.
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168
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Wang J, Amoah S, Stafford JL. A leukocyte immune-type receptor specific polyclonal antibody recognizes goldfish kidney leukocytes and activates the MAPK pathway in isolated goldfish kidney neutrophil-like cells. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 159:105228. [PMID: 38997096 DOI: 10.1016/j.dci.2024.105228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/14/2024]
Abstract
Leukocyte immune-type receptors (LITRs) belong to a large family of teleost immunoregulatory receptors that share phylogenetic and syntenic relationships with mammalian Fc receptor-like molecules (FCRLs). Recently, several putative stimulatory Carassius auratus (Ca)-LITR transcripts, including CaLITR3, have been identified in goldfish. CaLITR3 has four extracellular immunoglobulin-like (Ig-like) domains, a transmembrane domain containing a positively charged histidine residue, and a short cytoplasmic tail region. Additionally, the calitr3 transcript is highly expressed by goldfish primary kidney neutrophils (PKNs) and macrophages (PKMs). To further investigate the immunoregulatory potential of CaLITR3 in goldfish myeloid cells, we developed and characterized a CaLITR3-epitope-specific polyclonal antibody (anti-CaL3.D1 pAb). We show that the anti-CaL3.D1 pAb stains various hematopoietic cell types within the goldfish kidney, as well as in PKNs and PKMs. Moreover, cross-linking of the anti-CaL3.D1-pAb on PKN membranes induces phosphorylation of p38 and ERK1/2, critical components of the MAPK pathway involved in controlling a wide variety of innate immune effector responses such as NETosis, respiratory burst, and cytokine release. These findings support the stimulatory potential of CaLITR3 proteins as activators of fish granulocytes and pave the way for a more in-depth examination of the immunoregulatory functions of CaLITRs in goldfish myeloid cells.
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Affiliation(s)
- Jiahui Wang
- Department of Biological Sciences, University of Alberta, Alberta, Canada
| | - Samuel Amoah
- Department of Biological Sciences, University of Alberta, Alberta, Canada
| | - James L Stafford
- Department of Biological Sciences, University of Alberta, Alberta, Canada.
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169
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Zhao Z, Wang C, Zhao J, Li Y, Zhang S, Dong J, Zuo H, Ou J, Deng N, Bian Y. Immobilized PAD4 enzyme on magnetic nanoparticles for screening natural inhibitors from traditional Chinese medicines. Talanta 2024; 278:126492. [PMID: 38955099 DOI: 10.1016/j.talanta.2024.126492] [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: 03/18/2024] [Revised: 06/15/2024] [Accepted: 06/28/2024] [Indexed: 07/04/2024]
Abstract
Dysregulation of peptidyl arginine deiminase 4 (PAD4) is involved in a variety of diseases including rheumatoid arthritis (RA) and Alzheimer's disease (AD), and it has emerged as potential and promising therapeutic target. However, no PAD4 inhibitor is ready for clinical use. Immobilized enzyme screening technology has gained increasing attention due to its low cost, reusability, easy separation from the reaction mixture, and resistance to changes in environmental conditions. In this study, PAD4 was immobilized on the magnetic nanoparticles (MNP) to prolong its activity stability, and a simple and rapid screening strategy of traditional Chinese medicine inhibitors based on immobilized PAD4 was established. The PAD4 enzyme was immobilized on magnetic nanoparticles (MNP) via Schiff base reaction using glutaraldehyde (GA) as crosslinking agent. Compared with free PAD4, the resulting MNP@GA@PAD4 exhibited an enhanced tolerance to temperature and storage stability, and its reusability was greatly improved with 66 % of initial enzyme activity after being recycled 10 times. The inhibitory activity of the immobilized PAD4 was assessed using two known PAD4 inhibitors GSK484 and BB-Cl-amidine. The semi-maximum inhibitory concentrations (IC50) of GSK484 and BB-Cl-amidine for MNP@GA@PAD4 were 1.00 and 0.97 μM, respectively, for free PAD4 were 0.64 and 0.85 μM, respectively. Finally, the MNP@GA@PAD4 was employed to rapid screen of natural PAD4 inhibitors from forty traditional Chinese medicines (TCMs). Under the same conditions, the controlled experiment was conducted with free PAD4. The screening results of TCMs inhibitors on MNP@GA@PAD4 and free PAD4 were similar, the alcohol extracts of Cinnamomi Cortex and Caryophylli Flos had significant inhibitory effects on PAD4 enzyme activity. The IC50 values of Cinnamomi Cortex extract for MNP@GA@PAD4 and free PAD4 were determined as 27 and 48 μg/mL, respectively. The IC50 values of Caryophylli Flos extracts for MNP@GA@PAD4 and free PAD4 were determined as 48 and 32 μg/mL, respectively. For the first time, this study proposed a method to immobilize PAD4 on magnetic materials, and developed a rapid, reusable and feasible strategy to screening natural PAD4 inhibitors from TCMs.
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Affiliation(s)
- Zeyuan Zhao
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, College of Life Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China
| | - Chenyang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China
| | - Juanjuan Zhao
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, College of Life Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China
| | - Yanfeng Li
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, College of Life Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China
| | - Shengxiang Zhang
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, College of Life Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China
| | - Jianhui Dong
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, College of Life Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China
| | - Haiyue Zuo
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, College of Life Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China
| | - Junjie Ou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China
| | - Nan Deng
- Instrumental Analysis Center, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, PR China.
| | - Yangyang Bian
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, College of Life Science, Northwest University, Xi'an, Shaanxi Province, 710069, PR China.
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170
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Leng G, Duan B, Liu J, Li S, Zhao W, Wang S, Hou G, Qu J. The advancements and prospective developments in anti-tumor targeted therapy. Neoplasia 2024; 56:101024. [PMID: 39047659 PMCID: PMC11318541 DOI: 10.1016/j.neo.2024.101024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 07/01/2024] [Accepted: 07/03/2024] [Indexed: 07/27/2024]
Abstract
Cancer poses a major threat to human health worldwide. The development of anti-tumor materials provides new modalities for cancer diagnosis and treatment. In this review, we comprehensively summarize the research progress and clinical applications of anti-tumor materials. First, we introduce the etiology and pathogenesis of cancer, and the significance and challenges of anti-tumor materials research. Then, we classify anti-tumor materials and discuss their mechanisms of action. After that, we elaborate the research advances and clinical applications of anti-tumor materials, including those targeting tumor cells and therapeutic instruments. Finally, we discuss the future perspectives and challenges in the field of anti-tumor materials. This review aims to provide an overview of the current status of anti-tumor materials research and application, and to offer insights into future directions in this rapidly evolving field, which holds promise for more precise, efficient and customized treatment of cancer.
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Affiliation(s)
- Guorui Leng
- School of Special Education and Rehabilitation, Binzhou Medical University, Yantai 264003, China
| | - Baorong Duan
- Research Center for Leather and Protein of College of Chemistry & Chemical Engineering, Yantai University, Yantai 264005, China
| | - Junjie Liu
- Department of Physics, Binzhou Medical University, Yantai 264003, China
| | - Song Li
- School of Special Education and Rehabilitation, Binzhou Medical University, Yantai 264003, China
| | - Wenwen Zhao
- School of Special Education and Rehabilitation, Binzhou Medical University, Yantai 264003, China
| | - Shanshan Wang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Guige Hou
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China.
| | - Jiale Qu
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China; Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Provincial Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, China.
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171
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Wang B, Han D, Hu X, Chen J, Liu Y, Wu J. Exploring the role of a novel postbiotic bile acid: Interplay with gut microbiota, modulation of the farnesoid X receptor, and prospects for clinical translation. Microbiol Res 2024; 287:127865. [PMID: 39121702 DOI: 10.1016/j.micres.2024.127865] [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: 05/02/2024] [Revised: 08/01/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024]
Abstract
The gut microbiota, mainly resides in the colon, possesses a remarkable ability to metabolize different substrates to create bioactive substances, including short-chain fatty acids, indole-3-propionic acid, and secondary bile acids. In the liver, bile acids are synthesized from cholesterol and then undergo modification by the gut microbiota. Beyond those reclaimed by the enterohepatic circulation, small percentage of bile acids escaped reabsorption, entering the systemic circulation to bind to several receptors, such as farnesoid X receptor (FXR), thereby exert their biological effects. Gut microbiota interplays with bile acids by affecting their synthesis and determining the production of secondary bile acids. Reciprocally, bile acids shape out the structure of gut microbiota. The interplay of bile acids and FXR is involved in the development of multisystemic conditions, encompassing metabolic diseases, hepatobiliary diseases, immune associated disorders. In the review, we aim to provide a thorough review of the intricate crosstalk between the gut microbiota and bile acids, the physiological roles of bile acids and FXR in mammals' health and disease, and the clinical translational considerations of gut microbiota-bile acids-FXR in the treatment of the diseases.
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Affiliation(s)
- Beibei Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Dong Han
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Xinyue Hu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Jing Chen
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Yuwei Liu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Jing Wu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China.
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172
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Zhang H, Wen N, Gong X, Li X. Application of triboelectric nanogenerator (TENG) in cancer prevention and adjuvant therapy. Colloids Surf B Biointerfaces 2024; 242:114078. [PMID: 39018914 DOI: 10.1016/j.colsurfb.2024.114078] [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: 04/10/2024] [Revised: 06/15/2024] [Accepted: 07/04/2024] [Indexed: 07/19/2024]
Abstract
Cancer is a malignant tumor that kills about 940,000 people worldwide each year. In addition, about 30-77 % of cancer patients will experience cancer metastasis and recurrence, which can increase the cancer mortality rate without prompt treatment. According to the US Food and Drug Administration, wearable devices can detect several physiological indicators of patients to reflect their health status and adjuvant cancer treatment. Based on the triboelectric effect and electrostatic induction phenomenon, triboelectric nanopower generation (TENG) technology can convert mechanical energy into electricity and drive small electronic devices. This article reviewed the research status of TENG in the areas of cancer prevention and adjuvant therapy. TENG can be used for cancer prevention with advanced sensors. At the same time, electrical stimulation generated by TENG can also be used to help inhibit the growth of cancer cells to reduce the proliferation, recurrence, and metastasis of cancer cells. This review will promote the practical application of TENG in healthcare and provide clean and sustainable energy solutions for wearable bioelectronic systems.
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Affiliation(s)
- Haohao Zhang
- Nanjing Institute of Technology, Jiangning District, Nanjing City, Jiangsu Province 211167, China
| | - Ning Wen
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Xiaoran Gong
- Nanjing Institute of Technology, Jiangning District, Nanjing City, Jiangsu Province 211167, China
| | - Xue Li
- Nanjing Institute of Technology, Jiangning District, Nanjing City, Jiangsu Province 211167, China.
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173
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Richter B, Epperly M, Tyurina Y, Shurin G, Johnson C, Korkmaz A, Gao Y, Scott J, Greenberger J, Kagan V, Bayır H. Enhancing survival after ionizing radiation exposure through mitigation of pyroptosis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167434. [PMID: 39053669 PMCID: PMC11348791 DOI: 10.1016/j.bbadis.2024.167434] [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: 04/23/2024] [Revised: 07/05/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024]
Abstract
• Pyroptosis, an inflammatory cell death, has been implicated in the pathogenesis of total body irradiation (TBI) so we investigated time course and cell type involvement of key mediators in a murine model. • Pyroptotic mediators were most highly expressed at day 3 post TBI with immune cells from ileum being preferentially activated. • We also investigated the effectiveness of MCC950, a potent pyroptosis inhibitor, in our murine model showing a survival benefit at 50 mg/kg regardless of sex. • Treatment with MCC950 showed elevations in full-length downstream mediator IL-1β in ileum and decreased levels of cleaved IL-1β in splenic tissue.
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Affiliation(s)
- Brandon Richter
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA 15261, USA; Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA 15224, USA; Children's Neuroscience Institute, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave., Pittsburgh, PA 15224, USA
| | - Michael Epperly
- Department of Radiation Oncology, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh, PA 15213, USA
| | - Yulia Tyurina
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA 15261, USA
| | - Galina Shurin
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA 15261, USA
| | - Carla Johnson
- Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA 15224, USA; Children's Neuroscience Institute, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave., Pittsburgh, PA 15224, USA
| | - Aybike Korkmaz
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA 15261, USA; Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA 15224, USA; Children's Neuroscience Institute, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave., Pittsburgh, PA 15224, USA; Department of Pediatrics, Division of Critical Care and Hospital Medicine, Redox Health Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Interdisciplinary Neuroscience, Graduate School of Health Sciences, Ankara University
| | - Yuan Gao
- Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA 15224, USA; Children's Neuroscience Institute, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave., Pittsburgh, PA 15224, USA
| | - Julie Scott
- Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA 15224, USA; Children's Neuroscience Institute, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave., Pittsburgh, PA 15224, USA
| | - Joel Greenberger
- Department of Radiation Oncology, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh, PA 15213, USA
| | - Valerian Kagan
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA 15261, USA; Children's Neuroscience Institute, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave., Pittsburgh, PA 15224, USA; Department of Pediatrics, Division of Critical Care and Hospital Medicine, Redox Health Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Hülya Bayır
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA 15261, USA; Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA 15224, USA; Children's Neuroscience Institute, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave., Pittsburgh, PA 15224, USA; Department of Pediatrics, Division of Critical Care and Hospital Medicine, Redox Health Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA.
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174
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Espinosa-Bustos C, Bertrand J, Villegas-Menares A, Guerrero S, Di Marcotullio L, Navacci S, Schulte G, Kozielewicz P, Bloch N, Villela V, Paulino M, Kogan MJ, Cantero J, Salas CO. New Smoothened ligands based on the purine scaffold as potential agents for treating pancreatic cancer. Bioorg Chem 2024; 151:107681. [PMID: 39106711 DOI: 10.1016/j.bioorg.2024.107681] [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: 03/28/2024] [Revised: 06/27/2024] [Accepted: 07/27/2024] [Indexed: 08/09/2024]
Abstract
Aberrant activation of the Hedgehog (Hh) signalling pathway has been associated with the development and progression of pancreatic cancer. For this reason, blockade of Hh pathway by inhibitors targeting the G protein-coupled receptor Smoothened (SMO) has been considered as a therapeutic target for the treatment of this cancer. In our previous work, we obtained a new SMO ligand based on a purine scaffold (compound I), which showed interesting antitumor activity in several cancer cell lines. In this work, we report the design and synthesis of 17 new purine derivatives, some of which showed high cytotoxic effect on Mia-PaCa-2 (Hh-dependent pancreatic cancer cell lines) and low toxicity on non-neoplastic HEK-293 cells compared with gemcitabine, such as 8f, 8g and 8h (IC50 = 4.56, 4.11 and 3.08 μM, respectively). Two of these purines also showed their ability to bind to SMO through NanoBRET assays (pKi = 5.17 for 8f and 5.01 for 8h), with higher affinities to compound I (pKi = 1.51). In addition, docking studies provided insight the purine substitution pattern is related to the affinity on SMO. Finally, studies of Hh inhibition for selected purines, using a transcriptional functional assay based on luciferase activity in NIH3T3 Shh-Light II cells, demonstrated that 8g reduced GLI activity with a IC50 = 6.4 μM as well as diminished the expression of Hh target genes in two specific Hh-dependent cell models, Med1 cells and Ptch1-/- mouse embryonic fibroblasts. Therefore, our results provide a platform for the design of SMO ligands that could be potential selective cytotoxic agents for the treatment of pancreatic cancer.
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Affiliation(s)
- Christian Espinosa-Bustos
- Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, 702843 Santiago, Chile
| | - Jeanluc Bertrand
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, 702843 Santiago, Chile
| | - Alondra Villegas-Menares
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, 702843 Santiago, Chile
| | - Simón Guerrero
- Facultad de Medicina, Universidad de Atacama, 153601 Copiapó, Chile
| | - Lucia Di Marcotullio
- Department of Molecular Medicine, Faculty Pharmacy and Medicine, Sapienza University, 00161 Rome, Italy; Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University, 00161 Rome, Italy
| | - Shirin Navacci
- Department of Molecular Medicine, Faculty Pharmacy and Medicine, Sapienza University, 00161 Rome, Italy
| | - Gunnar Schulte
- Department of Physiology and Pharmacology, Karolinska Institute, 17165 Solna, Stockholm, Sweden
| | - Pawel Kozielewicz
- Department of Physiology and Pharmacology, Karolinska Institute, 17165 Solna, Stockholm, Sweden
| | - Nicolas Bloch
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, 702843 Santiago, Chile
| | - Valentina Villela
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, 702843 Santiago, Chile
| | - Margot Paulino
- Departamento DETEMA, Facultad de Química, Universidad de la República, 11800 Montevideo, Uruguay
| | - Marcelo J Kogan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, 8380492 Santiago, Chile; Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, 8380492 Santiago, Chile
| | - Jorge Cantero
- Departamento DETEMA, Facultad de Química, Universidad de la República, 11800 Montevideo, Uruguay
| | - Cristian O Salas
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, 702843 Santiago, Chile.
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175
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Wu Y, Zhang G, Yin P, Wen J, Su Y, Zhang X. Brusatol improves the efficacy of an anti-mouse-PD-1 antibody via inhibiting programmed cell death 1 ligand 1 expression in a murine head and neck squamous cell carcinoma model. Arch Oral Biol 2024; 166:106043. [PMID: 38968906 DOI: 10.1016/j.archoralbio.2024.106043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 07/07/2024]
Abstract
OBJECTIVE Combing PD-1/PD-L1 immune checkpoint inhibitors with natural products has exhibited better efficacy than monotherapy. Hence, the purpose of this research was to examine the anti-cancer effects of brusatol, a natural quassinoid-terpenoid derived from Brucea javanica, when used in conjunction with an anti-mouse-PD-1 antibody in a murine head and neck squamous cell carcinoma (HNSCC) model and elucidate underlying mechanisms. DESIGN A murine HNSCC model and an SCC-15 cell xenograft nude mouse model were established to investigate the anti-cancer effects of brusatol and anti-PD-1 antibody. Mechanistic studies were performed using immunohistochemistry. Cell proliferation, migration, colony formation, and invasion were evaluated by MTT, migration, colony formation, and transwell invasion assays. PD-L1 levels in oral squamous cell carcinoma (OSCC) cells were assessed through qRT-PCR, flow cytometry, and western blotting assays. The impact of brusatol on Jurkat T cell function was assessed by an OSCC/Jurkat co-culture assay. RESULTS Brusatol improved tumor suppression by anti-PD-1 antibody in HNSCC mouse models. Mechanistic studies revealed brusatol inhibited tumor cell growth and angiogenesis, induced apoptosis, increased T lymphocyte infiltration, and reduced PD-L1 expression in tumors. Furthermore, in vitro assays confirmed brusatol inhibited PD-L1 expression in OSCC cells and suppressed cell migration, colony formation, and invasion. Co-culture assays indicated that brusatol's PD-L1 inhibition enhanced Jurkat T cell-mediated OSCC cell death and reversed the inhibitory effect induced by OSCC cells. CONCLUSIONS Brusatol improves anti-PD-1 antibody efficacy by targeting PD-L1, suggesting its potential as an adjuvant in anti-PD-1 immunotherapy.
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Affiliation(s)
- Yanlin Wu
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing 100050, China
| | - Guilian Zhang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing 100050, China; Department of Stomatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Panpan Yin
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing 100050, China
| | - Jinlin Wen
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing 100050, China
| | - Ying Su
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing 100050, China
| | - Xinyan Zhang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing 100050, China.
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176
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Martinez Grundman JE, Schultz TD, Schlessman JL, Liu K, Johnson EA, Lecomte JTJ. Heme d formation in a Shewanella benthica hemoglobin. J Inorg Biochem 2024; 259:112654. [PMID: 38959524 DOI: 10.1016/j.jinorgbio.2024.112654] [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: 05/11/2024] [Revised: 06/25/2024] [Accepted: 06/25/2024] [Indexed: 07/05/2024]
Abstract
In our continued investigations of microbial globins, we solved the structure of a truncated hemoglobin from Shewanella benthica, an obligate psychropiezophilic bacterium. The distal side of the heme active site is lined mostly with hydrophobic residues, with the exception of a tyrosine, Tyr34 (CD1) and a histidine, His24 (B13). We found that purified SbHbN, when crystallized in the ferric form with polyethylene glycol as precipitant, turned into a green color over weeks. The electron density obtained from the green crystals accommodated a trans heme d, a chlorin-type derivative featuring a γ-spirolactone and a vicinal hydroxyl group on a pyrroline ring. In solution, exposure of the protein to one equivalent of hydrogen peroxide resulted in a similar green color change, but caused by the formation of multiple products. These were oxidation species released on protein denaturation, likely including heme d, and a species with heme covalently attached to the polypeptide. The Tyr34Phe replacement prevented the formation of both heme d and the covalent linkage. The ready modification of heme b by SbHbN expands the range of chemistries supported by the globin fold and offers a route to a novel heme cofactor.
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Affiliation(s)
| | - Thomas D Schultz
- T.C. Jenkins Department of Biophysics, Johns Hopkins University, Baltimore, MD 21218, USA
| | | | - Kevin Liu
- T.C. Jenkins Department of Biophysics, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Eric A Johnson
- Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Juliette T J Lecomte
- T.C. Jenkins Department of Biophysics, Johns Hopkins University, Baltimore, MD 21218, USA.
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177
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Zhao C, Rong Y, Shi S, Gao WC, Zhang C. A novel method for synthesizing authentic SARS-CoV-2 main protease. Protein Expr Purif 2024; 222:106531. [PMID: 38852715 DOI: 10.1016/j.pep.2024.106531] [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: 05/01/2024] [Revised: 06/01/2024] [Accepted: 06/07/2024] [Indexed: 06/11/2024]
Abstract
The SARS-CoV-2 main protease (Mpro) plays a crucial role in virus amplification and is an ideal target for antiviral drugs. Currently, authentic Mpro is prepared through two rounds of proteolytic cleavage. In this method, Mpro carries a self-cleavage site at the N-terminus and a protease cleavage site followed by an affinity tag at the C-terminus. This article proposes a novel method for producing authentic Mpro through single digestion. Mpro was constructed by fusing a His tag containing TEV protease cleavage sites at the N-terminus. The expressed recombinant protein was digested by TEV protease, and the generated protein had a decreased molecular weight and significantly increased activity, which was consistent with that of authentic Mpro generated by the previous method. These findings indicated that authentic Mpro was successfully obtained. Moreover, the substrate specificity of Mpro was investigated. Mpro had a strong preference for Phe at position the P2, which suggested that the S2 subsite was an outstanding target for designing inhibitors. This article also provides a reference for the preparation of Mpro for sudden coronavirus infection in the future.
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Affiliation(s)
- Cheng Zhao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China.
| | - Yi Rong
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China
| | - Shuyuan Shi
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China
| | - Wen-Chao Gao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China
| | - Chaofeng Zhang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China.
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178
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Lobato AG, Ortiz-Vega N, Canic T, Tao X, Bucan N, Ruan K, Rebelo AP, Schule R, Zuchner S, Syed S, Zhai RG. Loss of Fic causes progressive neurodegeneration in a Drosophila model of hereditary spastic paraplegia. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167348. [PMID: 38986817 DOI: 10.1016/j.bbadis.2024.167348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 07/12/2024]
Abstract
Hereditary Spastic Paraplegia (HSP) is a group of rare inherited disorders characterized by progressive weakness and spasticity of the legs. Recent newly discovered biallelic variants in the gene FICD were found in patients with a highly similar phenotype to early onset HSP. FICD encodes filamentation induced by cAMP domain protein. FICD is involved in the AMPylation and deAMPylation protein modifications of the endoplasmic reticulum (ER) chaperone BIP, a major constituent of the ER that regulates the unfolded protein response. Although several biochemical properties of FICD have been characterized, the neurological function of FICD and the pathological mechanism underlying HSP are unknown. We established a Drosophila model to gain mechanistic understanding of the function of FICD in HSP pathogenesis, and specifically the role of BIP in neuromuscular physiology. Our studies on Drosophila Fic null mutants uncovered that loss of Fic resulted in locomotor impairment and reduced levels of BIP in the motor neuron circuitry, as well as increased reactive oxygen species (ROS) in the ventral nerve cord of Fic null mutants. Finally, feeding Drosophila Fic null mutants with chemical chaperones PBA or TUDCA, or treatment of patient fibroblasts with PBA, reduced the ROS accumulation. The neuronal phenotypes of Fic null mutants recapitulate several clinical features of HSP patients and further reveal cellular patho-mechanisms. By modeling FICD in Drosophila, we provide potential targets for intervention for HSP, and advance fundamental biology that is important for understanding related rare and common neuromuscular diseases.
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Affiliation(s)
- Amanda G Lobato
- Department of Neurology, University of Chicago, Chicago, IL, USA; Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA; Graduate Program in Human Genetics and Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Natalie Ortiz-Vega
- Department of Neurology, University of Chicago, Chicago, IL, USA; Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA; Graduate Program in Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, FL, USA
| | - Tijana Canic
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA; Graduate Program in Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, FL, USA
| | - Xianzun Tao
- Department of Neurology, University of Chicago, Chicago, IL, USA; Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Nika Bucan
- Undergraduate Program in Neuroscience, University of Miami, Coral Gables, FL, USA
| | - Kai Ruan
- Department of Neurology, University of Chicago, Chicago, IL, USA; Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Adriana P Rebelo
- Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Rebecca Schule
- Hertie Institute for Clinical Brain Research (HIH), Center of Neurology, University of Tübingen, Tübingen, Germany; German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen, Germany
| | - Stephan Zuchner
- Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Sheyum Syed
- Department of Physics, University of Miami, Coral Gables, FL, USA
| | - R Grace Zhai
- Department of Neurology, University of Chicago, Chicago, IL, USA; Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL, USA.
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179
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Zhang Y, Tu J, Wang J, Dai T, Zheng L, Sun S, Tu C, Li H, Qian L. NFKBIE is a predictive factor of survival and is correlated with immune infiltration and antigen processing and presentation in hepatocellular carcinoma. Oncol Lett 2024; 28:480. [PMID: 39161335 PMCID: PMC11332585 DOI: 10.3892/ol.2024.14613] [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: 05/21/2023] [Accepted: 02/21/2024] [Indexed: 08/21/2024] Open
Abstract
The important role of the nuclear factor κB (NFκB) pathway in tumour development has long been recognized; however, the role of the NFκB inhibitor family in liver cancer has not been elucidated. Hepatocellular carcinoma (HCC) is a serious public health burden with a high incidence, poor prognosis, and early detection, especially in Asia, where hepatitis is prevalent. In the present study, the mRNA expression level of the NFκB inhibitor family was assessed in HCC and normal tissues using the Metabolic Gene Rapid Visualizer, University of Alabama at Birmingham Cancer Data Analysis Portal, and the Tumor Immune Estimation Resource database (TIMER). Survival curves of nuclear factor of κ light polypeptide gene enhancer in B-cells inhibitor (NFKBI)E were obtained using the Kaplan-Meier method. Genes co-expressed with NFKBIE in HCC samples were studied using data from the LinkedOmics and the Hepatocellular Carcinoma Databases. Protein-protein interaction networks, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment pathway analyses were used to assess the NFKBIE mechanism in HCC. Using the TIMER database, the association between immune infiltration and NFKBIE was determined. RNA-sequencing (RNA-seq) was used to evaluate the function of NFKBIE in HCC and its impact on proliferation and migration. Western blotting was used to confirm the expression of NFKBIE in HCC cell lines. In addition, NFKBIE overexpression in HCC was demonstrated using tissue microarrays encompassing 80 pairs of HCC and normal liver tissues. NFKBIE was the only NFκB inhibitor with high expression and an improved prognosis in HCC compared with other NFκB inhibitors. NFKBIE was correlated with clinical characteristics, such as tumour grade, tumour protein P53 mutation status and tumour stage. Data obtained from Gene Set Cancer Analysis suggested that NFKBIE may inhibit the PI3K/AKT, RAS/MAPK, RTK and TSC/mTOR pathways. In addition, NFKBIE was significantly associated with B-cell immune infiltration and the RNA-seq data demonstrated that knockdown of NFKBIE significantly affected 'Antigen processing and presentation' and 'hepatocellular carcinoma' pathways. Immunohistochemistry of microarrays of tissue samples revealed that NFKBIE was overexpressed in several stages of HCC. Finally, inhibition of NFKBIE decreased the proliferation and migration of HCC cells. In conclusion, due to its prognostic value and overexpression in HCC, NFKBIE distinguished itself from other NFκB inhibitors. As such, it may provide a novel prognostic indicator and immunotherapeutic target for HCC.
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Affiliation(s)
- Yang Zhang
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Jinqi Tu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui 241001, P.R. China
| | - Jian Wang
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Tiancheng Dai
- Department of Medical Laboratory Technology, The First Clinical College of Anhui Medical University, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Lin Zheng
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Sinan Sun
- Department of Radiation Oncology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230031, P.R. China
| | - Conyin Tu
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Heng Li
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Liting Qian
- Department of Radiation Oncology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230031, P.R. China
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180
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Yagi H, Takagi K, Kato K. Exploring domain architectures of human glycosyltransferases: Highlighting the functional diversity of non-catalytic add-on domains. Biochim Biophys Acta Gen Subj 2024; 1868:130687. [PMID: 39097174 DOI: 10.1016/j.bbagen.2024.130687] [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: 06/21/2024] [Revised: 07/17/2024] [Accepted: 07/30/2024] [Indexed: 08/05/2024]
Abstract
Human glycosyltransferases (GTs) play crucial roles in glycan biosynthesis, exhibiting diverse domain architectures. This study explores the functional diversity of "add-on" domains within human GTs, using data from the AlphaFold Protein Structure Database. Among 215 annotated human GTs, 74 contain one or more add-on domains in addition to their catalytic domain. These domains include lectin folds, fibronectin type III, and thioredoxin-like domains and contribute to substrate specificity, oligomerization, and consequent enzymatic activity. Notably, certain GTs possess dual enzymatic functions due to catalytic add-on domains. The analysis highlights the importance of add-on domains in enzyme functionality and disease implications, such as congenital disorders of glycosylation. This comprehensive overview enhances our understanding of GT domain organization, providing insights into glycosylation mechanisms and potential therapeutic targets.
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Affiliation(s)
- Hirokazu Yagi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Japan; Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Japan
| | - Katsuki Takagi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Japan; Institute for Molecular Science, National Institutes of Natural Sciences, Japan
| | - Koichi Kato
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Japan; Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Japan; Institute for Molecular Science, National Institutes of Natural Sciences, Japan.
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181
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Wirth D, Özdemir E, Hristova K. Probing phosphorylation events in biological membranes: The transducer function. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184362. [PMID: 38885782 DOI: 10.1016/j.bbamem.2024.184362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/26/2024] [Accepted: 06/10/2024] [Indexed: 06/20/2024]
Abstract
The extracellular environment is sensed by receptors in the plasma membrane. Some of these receptors initiate cytoplasmic signaling cascades involving phosphorylation: the addition of a phosphate group to a specific amino acid, such as tyrosine, in a protein. Receptor Tyrosine Kinases (RTKs) are one large class of membrane receptors that can directly initiate signaling cascades through their intracellular kinase domains, which both catalyze tyrosine phosphorylation and get phosphorylated. In the first step of signaling, the ligands stabilize phosphorylation-competent RTK dimers and oligomers, which leads to the phosphorylation of specific tyrosine residues in the activation loop of the kinases. Here we discuss quantitative measurements of tyrosine phosphorylation efficiencies for RTKs, described by the "transducer function". The transducer function links the phosphorylation (the response) and the binding of the activating ligand to the receptor (the stimulus). We overview a methodology that allows such measurements in direct response to ligand binding. We discuss experiments which demonstrate that EGF is a partial agonist, and that two tyrosines in the intracellular domain of EGFR, Y1068 and Y1173, are differentially phosphorylated in the EGF-bound EGFR dimers.
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Affiliation(s)
- Daniel Wirth
- Department of Materials Science and Engineering and Institute for NanoBioTechnology, Johns Hopkins University, 3400 Charles Street, Baltimore, MD 21218, United States of America
| | - Ece Özdemir
- Department of Materials Science and Engineering and Institute for NanoBioTechnology, Johns Hopkins University, 3400 Charles Street, Baltimore, MD 21218, United States of America
| | - Kalina Hristova
- Department of Materials Science and Engineering and Institute for NanoBioTechnology, Johns Hopkins University, 3400 Charles Street, Baltimore, MD 21218, United States of America.
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182
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Swindell J, Dos Santos PC. Interactions with sulfur acceptors modulate the reactivity of cysteine desulfurases and define their physiological functions. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119794. [PMID: 39033933 DOI: 10.1016/j.bbamcr.2024.119794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 06/21/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
Sulfur-containing biomolecules such as [FeS] clusters, thiamin, biotin, molybdenum cofactor, and sulfur-containing tRNA nucleosides are essential for various biochemical reactions. The amino acid l-cysteine serves as the major sulfur source for the biosynthetic pathways of these sulfur-containing cofactors in prokaryotic and eukaryotic systems. The first reaction in the sulfur mobilization involves a class of pyridoxal-5'-phosphate (PLP) dependent enzymes catalyzing a Cys:sulfur acceptor sulfurtransferase reaction. The first half of the catalytic reaction involves a PLP-dependent CS bond cleavage, resulting in a persulfide enzyme intermediate. The second half of the reaction involves the subsequent transfer of the thiol group to a specific acceptor molecule, which is responsible for the physiological role of the enzyme. Structural and biochemical analysis of these Cys sulfurtransferase enzymes shows that specific protein-protein interactions with sulfur acceptors modulate their catalytic reactivity and restrict their biochemical functions.
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Affiliation(s)
- Jimmy Swindell
- Department of Chemistry, Wake Forest University, Winston-Salem, NC, 27109, United States of America
| | - Patricia C Dos Santos
- Department of Chemistry, Wake Forest University, Winston-Salem, NC, 27109, United States of America.
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183
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Chivers PT, Basak P, Maroney MJ. One His, two His…the emerging roles of histidine in cellular nickel trafficking. J Inorg Biochem 2024; 259:112668. [PMID: 39053077 DOI: 10.1016/j.jinorgbio.2024.112668] [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: 04/29/2024] [Revised: 07/15/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024]
Abstract
Biological environments present a complex array of metal-binding ligands. Metal-binding proteins have been the overwhelming focus of study because of their important and well-defined biological roles. Consequently, the presence of functional low molecular weight (LMW) metal-ligand complexes has been overlooked in terms of their roles in metallobiochemistry, particularly within cells. Recent studies in microbial systems have illuminated the different roles of L-histidine in nickel uptake, gene expression, and metalloenzyme maturation. In this focused critical review, these roles are surveyed in the context of the coordination chemistry of Ni(II) ions and the amino acid histidine, and the physico-chemical properties of nickel complexes of histidine. These complexes are fundamentally important to cellular metal homeostasis and further work is needed to fully define their contributions.
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Affiliation(s)
- Peter T Chivers
- Departments of Biosciences and Chemistry, University of Durham, Durham DH1 3LE, UK
| | - Priyanka Basak
- Department of Chemistry, University of Massachusetts, Amherst, MA 01002, United States of America
| | - Michael J Maroney
- Department of Chemistry, University of Massachusetts, Amherst, MA 01002, United States of America.
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184
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Chen K, Zhu L, Li J, Zhang Y, Yu Y, Wang X, Wei W, Huang K, Xu W. High-content tailoring strategy to improve the multifunctionality of functional nucleic acids. Biosens Bioelectron 2024; 261:116494. [PMID: 38901394 DOI: 10.1016/j.bios.2024.116494] [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: 05/08/2024] [Revised: 05/30/2024] [Accepted: 06/11/2024] [Indexed: 06/22/2024]
Abstract
Functional nucleic acids (FNAs) have attracted increasing attention in recent years due to their diverse physiological functions. The understanding of their conformational recognition mechanisms has advanced through nucleic acid tailoring strategies and sequence optimization. With the development of the FNA tailoring techniques, they have become a methodological guide for nucleic acid repurposing. Therefore, it is necessary to systematize the relationship between FNA tailoring strategies and the development of nucleic acid multifunctionality. This review systematically categorizes eight types of FNA multifunctionality, and introduces the traditional FNA tailoring strategy from five aspects, including deletion, substitution, splitting, fusion and elongation. Based on the current state of FNA modification, a new generation of FNA tailoring strategy, called the high-content tailoring strategy, was unprecedentedly proposed to improve FNA multifunctionality. In addition, the multiple applications of rational tailoring-driven FNA performance enhancement in various fields were comprehensively summarized. The limitations and potential of FNA tailoring and repurposing in the future are also explored in this review. In summary, this review introduces a novel tailoring theory, systematically summarizes eight FNA performance enhancements, and provides a systematic overview of tailoring applications across all categories of FNAs. The high-content tailoring strategy is expected to expand the application scenarios of FNAs in biosensing, biomedicine and materials science, thus promoting the synergistic development of various fields.
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Affiliation(s)
- Keren Chen
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100193, China
| | - Longjiao Zhu
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100193, China
| | - Jie Li
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Yangzi Zhang
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100193, China
| | - Yongxia Yu
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100193, China
| | - Xiaofu Wang
- Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Wei Wei
- Key Laboratory of Traceability for Agricultural Genetically Modified Organisms, Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Kunlun Huang
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Wentao Xu
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100193, China; Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.
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185
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Effah W, Khalil M, Hwang DJ, Miller DD, Narayanan R. Advances in the understanding of androgen receptor structure and function and in the development of next-generation AR-targeted therapeutics. Steroids 2024; 210:109486. [PMID: 39111362 DOI: 10.1016/j.steroids.2024.109486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/29/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024]
Abstract
Androgen receptor (AR) and its ligand androgens are important for development and physiology of various tissues. AR and its ligands also play critical role in the development of various diseases, making it a valuable therapeutic target. AR ligands, both agonists and antagonists, are being widely used to treat pathological conditions, including prostate cancer and hypogonadism. Despite AR being studied widely over the last five decades, the last decade has seen striking advances in the knowledge on AR and discoveries that have the potential to translate to the clinic. This review provides an overview of the advances in AR biology, AR molecular mechanisms of action, and next generation molecules that are currently in development. Several of the areas described in the review are just unraveling and the next decade will bring more clarity on these developments that will put AR at the forefront of both basic biology and drug development.
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Affiliation(s)
- Wendy Effah
- Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Marjana Khalil
- Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Dong-Jin Hwang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Duane D Miller
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Ramesh Narayanan
- Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States; UTHSC Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, United States.
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186
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Kang J, Wu J, Liu Q, Jiang H, Li W, Li Y, Li X, Ni C, Wu L, Liu M, Liu H, Deng L, Lin Z, Wu X, Zhao Y, Ren J. FASN regulates STING palmitoylation via malonyl-CoA in macrophages to alleviate sepsis-induced liver injury. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167299. [PMID: 38878833 DOI: 10.1016/j.bbadis.2024.167299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/24/2024] [Accepted: 06/06/2024] [Indexed: 06/20/2024]
Abstract
STING (stimulator of interferon genes) is a critical immunoregulatory protein in sepsis and is regulated by various mechanisms, especially palmitoylation. FASN (fatty acid synthase) is the rate-limiting enzyme to generate cellular palmitic acid (PA) via acetyl-CoA and malonyl-CoA and participates in protein palmitoylation. However, the mechanisms underlying the interaction between STING and FASN have not been completely understood. In this study, STING-knockout mice were used to confirm the pivotal role of STING in sepsis-induced liver injury. Metabolomics confirmed the dyslipidemia in septic mice and patients. The compounds library was screened, revealing that FASN inhibitors exerted a significant inhibitory effect on the STING pathway. Mechanically, the regulatory effect of FASN on the STING pathway was dependent on palmitoylation. Further experiments indicated that the upstream of FASN, malonyl-CoA inhibited STING pathway possibly due to C91 (palmitoylated residue) of STING. Overall, this study reveals a novel paradigm of STING regulation and provides a new perspective on immunity and metabolism.
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Affiliation(s)
- Jiaqi Kang
- Research Institute of General Surgery, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China
| | - Jie Wu
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, PR China; Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Affiliated Zhongda Hospital, School of Medicine, Southeast University, Nanjing, PR China
| | - Qinjie Liu
- Department of General Surgery, Affiliated Zhongda Hospital, School of Medicine, Southeast University, Nanjing, PR China
| | - Haiyang Jiang
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, PR China
| | - Weizhen Li
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, PR China
| | - Yangguang Li
- Research Institute of General Surgery, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China
| | - Xuanheng Li
- Research Institute of General Surgery, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China
| | - Chujun Ni
- Surgical Research Laboratory, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, PR China
| | - Lei Wu
- Research Institute of General Surgery, Jinling Hospital, Nanjing Medical University, Nanjing, PR China
| | - Mingda Liu
- The Core Laboratory, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, PR China
| | - Haiqing Liu
- Surgical Research Laboratory, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, PR China
| | - Liting Deng
- Research Institute of General Surgery, Jinling Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Zexing Lin
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, PR China
| | - Xiuwen Wu
- Research Institute of General Surgery, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China.
| | - Yun Zhao
- Department of General Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, PR China.
| | - Jianan Ren
- Research Institute of General Surgery, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China.
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187
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Li R, Kuang Y, Niu Y, Zhang S, Chen S, Su F, Wang J, Lin S, Liu D, Shen C, Liang L, Zheng SG, Jie L, Xiao Y, Xu H. FTO-mediated RNA m 6A methylation regulates synovial aggression and inflammation in rheumatoid arthritis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167341. [PMID: 39025373 DOI: 10.1016/j.bbadis.2024.167341] [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: 04/14/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 07/20/2024]
Abstract
Fibroblast-like synoviocytes (FLS) plays an important role in synovial inflammation and joint damage in rheumatoid arthritis (RA). As the most abundant mRNA modification, N6-methyladenosine (m6A) is involved in the development of various diseases; however, its role in RA remains to be defined. In this study, we reported the elevated expression of the m6A demethylase fat mass and obesity-associated protein (FTO) in FLS and synovium from RA patients. Functionally, FTO knockdown or treatment with FB23-2, an inhibitor of the mRNA m6A demethylase FTO, inhibited the migration, invasion and inflammatory response of RA FLS, however, FTO-overexpressed RA FLS exhibited increased migration, invasion and inflammatory response. We further demonstrated that FTO promoted ADAMTS15 mRNA stability in an m6A-IGF2BP1 dependent manner. Notably, the severity of arthritis was significantly reduced in CIA mice with FB23-2 administration or CIA rats with intra-articular injection of FTO shRNA. Our results illustrate the contribution of FTO-mediated m6A modification to joint damage and inflammation in RA and suggest that FTO might be a potential therapeutic target in RA.
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Affiliation(s)
- Ruiru Li
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Yu Kuang
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Yuanyuan Niu
- Department of General Practice, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Shuoyang Zhang
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Simin Chen
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Fan Su
- Department of Geriatrics, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Jingnan Wang
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Shuibin Lin
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Di Liu
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Chuyu Shen
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Liuqin Liang
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China
| | - Song Guo Zheng
- Department of Immunology, School of Cell and Gene Therapy, Song Jiang Research Institutes, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Ligang Jie
- Department of Rheumatology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China.
| | - Youjun Xiao
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China.
| | - Hanshi Xu
- Department of Rheumatology and Immunology, the First Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, China.
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188
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Tian L, Liu Q, Wang X, Chen S, Li Y. Fighting ferroptosis: Protective effects of dexmedetomidine on vital organ injuries. Life Sci 2024; 354:122949. [PMID: 39127318 DOI: 10.1016/j.lfs.2024.122949] [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: 05/08/2024] [Revised: 07/25/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
Vital organ injury is one of the leading causes of global mortality and socio-economic burdens. Current treatments have limited efficacy, and new strategies are needed. Dexmedetomidine (DEX) is a highly selective α2-adrenergic receptor that protects multiple organs by reducing inflammation and preventing cell death. However, its exact mechanism is not yet fully understood. Understanding the underlying molecular mechanisms of its protective effects is crucial as it could provide a basis for designing highly targeted and more effective drugs. Ferroptosis is the primary mode of cell death during organ injury, and recent studies have shown that DEX can protect vital organs from this process. This review provides a detailed analysis of preclinical in vitro and in vivo studies and gains a better understanding of how DEX protects against vital organ injuries by inhibiting ferroptosis. Our findings suggest that DEX can potentially protect vital organs mainly by regulating iron metabolism and the antioxidant defense system. This is the first review that summarizes all evidence of ferroptosis's role in DEX's protective effects against vital organ injuries. Our work aims to provide new insights into organ therapy with DEX and accelerate its translation from the laboratory to clinical settings.
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Affiliation(s)
- Lei Tian
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Qian Liu
- Department of Anesthesiology, Zigong First People's Hospital, Zigong, China
| | - Xing Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Suheng Chen
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Yulan Li
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou, China.
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189
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Li G, Chen J, Xie Y, Yang Y, Niu Y, Chen X, Zeng X, Zhou L, Liu Y. White light increases anticancer effectiveness of iridium(III) complexes toward lung cancer A549 cells. J Inorg Biochem 2024; 259:112652. [PMID: 38945112 DOI: 10.1016/j.jinorgbio.2024.112652] [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: 04/14/2024] [Revised: 05/29/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024]
Abstract
Anticancer activity has been extensively studies. In this article, three ligands 2-(6-bromobenzo[d][1,3]dioxol-5-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (BDIP), 2-(7-methoxybenzo[d][1,3]dioxol-5-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (MDIP), 2-(6-nitrobenzo[d][1,3]dioxol-5-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (NDIP) and their iridium(III) complexes: [Ir(ppy)2(BDIP)](PF6) (ppy = deprotonated 2-phenylpyridine, 3a), [Ir(ppy)2(MDIP)](PF6) (3b) and [Ir(ppy)2(NDIP)](PF6) (3c) were synthesized. The cytotoxicity of 3a, 3b, 3c against Huh7, A549, BEL-7402, HepG2, HeLa, and non-cancer NIH3T3 was tested using 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) method. The results obtained from the MTT test stated clearly that these complexes demonstrated moderate or non-cytotoxicity toward Huh7, BEL-7402, HepG2 and HeLa except A549 cells. To improve the anticancer efficacy, we used white light to irradiate the mixture of cells and complexes for 30 min, the anticancer activity of the complexes was greatly enhanced. Particularly, 3a and 3b exhibited heightened capability to inhibit A549 cells proliferation with IC50 (half maximal inhibitory concentration) values of 0.7 ± 0.3 μM and 1.8 ± 0.1 μM, respectively. Cellular uptake has shown that 3a and 3b can be accumulated in the cytoplasm. Wound healing and colony forming showed that 3a and 3b significantly hinder the cell migration and growth in the S phase. The complexes open mitochondrial permeability transition pore (MPTP) channel and cause the decrease of membrane potential, release of cytochrome C, activation of caspase 3, and finally lead to apoptosis. In addition, 3a and 3b cause autophagy, increase the lipid peroxidation and lead to ferroptosis. Also, 3a and 3b increase the expression of calreticulin (CRT), high mobility group box 1 (HMGB1), heat shock protein 70 (HSP70), thereby inducing immunogenic cell death.
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Affiliation(s)
- Gechang Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Jing Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yufeng Xie
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yan Yang
- Department of Pharmacy, Guangdong Second Provincial General Hospital, 510317, PR China.
| | - Yajie Niu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Xiaolan Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Xiandong Zeng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Lin Zhou
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
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190
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Povolotsky TL, Levy Barazany H, Shacham Y, Kolodkin-Gal I. Bacterial epigenetics and its implication for agriculture, probiotics development, and biotechnology design. Biotechnol Adv 2024; 75:108414. [PMID: 39019123 DOI: 10.1016/j.biotechadv.2024.108414] [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: 05/04/2024] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
In their natural habitats, organisms encounter numerous external stimuli and must be able to sense and adapt to those stimuli to survive. Unlike mutations, epigenetic changes do not alter the underlying DNA sequence. Instead, they create modifications that promote or silence gene expression. Bacillus subtilis has long been a model organism in studying genetics and development. It is beneficial for numerous biotechnological applications where it is included as a probiotic, in fermentation, or in bio-concrete design. This bacterium has also emerged recently as a model organism for studying bacterial epigenetic adaptation. In this review, we examine the evolving knowledge of epigenetic regulation (restriction-modification systems (RM), orphan methyltransferases, and chromosome condensation) in B. subtilis and related bacteria, and utilize it as a case study to test their potential roles and future applications in genetic engineering and microbial biotechnology. Finally, we suggest how the implementation of these fundamental findings promotes the design of synthetic epigenetic memory circuits and their future applications in agriculture, medicine, and biotechnology.
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Affiliation(s)
- Tatyana L Povolotsky
- Institute for Chemistry and Biochemistry, Physical and Theoretical Chemistry, Freie Universität Berlin, Altensteinstraße 23A, 14195 Berlin, Germany
| | - Hilit Levy Barazany
- Scojen Institute for Synthetic Biology, Reichman University, Hauniversita 8, Herzeliya, Israel
| | - Yosi Shacham
- Scojen Institute for Synthetic Biology, Reichman University, Hauniversita 8, Herzeliya, Israel
| | - Ilana Kolodkin-Gal
- Scojen Institute for Synthetic Biology, Reichman University, Hauniversita 8, Herzeliya, Israel.
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191
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Kondo M, Nakamura Y, Kato Y, Nishimura A, Fukata M, Moriyama S, Ito T, Umezawa K, Urano Y, Akaike T, Akashi K, Kanda Y, Nishida M. Inorganic sulfides prevent osimertinib-induced mitochondrial dysfunction in human iPS cell-derived cardiomyocytes. J Pharmacol Sci 2024; 156:69-76. [PMID: 39179336 DOI: 10.1016/j.jphs.2024.07.007] [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: 06/01/2024] [Revised: 07/05/2024] [Accepted: 07/22/2024] [Indexed: 08/26/2024] Open
Abstract
Despite the widespread recognition of the global concern regarding the onset of cardiovascular diseases in a significant number of patients following cancer treatment, definitive strategies for prevention and treatment remain elusive. In this study, we established systems to evaluate the influence of anti-cancer drugs on the quality control of mitochondria, pivotal for energy metabolism, using human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs). Osimertinib, an epidermal growth factor receptor tyrosine kinase inhibitor used for treatment in lung cancer, reportedly increases the risk of cardiovascular disease. However, its underlying mechanism is largely unknown. Here, we found that the treatment of hiPSC-CMs with osimertinib and doxorubicin, but not trastuzumab and cisplatin, revealed a concentration-dependent impairment of respiratory function accompanied by mitochondrial fission. We previously reported the significant role of sulfur metabolism in maintaining mitochondrial quality in the heart. Co-treatment with various inorganic sulfur donors (Na2S, Na2S2, Na2S3) alongside anti-cancer drugs demonstrated that Na2S attenuated the cardiotoxicity of osimertinib but not doxorubicin. Osimertinib decreased intracellular reduced sulfur levels, while Na2S treatment suppressed the sulfur leakage, suggesting its potential in mitigating osimertinib-induced cardiotoxicity. These results imply the prospect of inorganic sulfides, such as Na2S, as a seed for precision pharmacotherapy to alleviate osimertinib's cardiotoxic effects.
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Affiliation(s)
- Moe Kondo
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan; Department of Physiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuya Nakamura
- Department of Physiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuri Kato
- Department of Physiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Akiyuki Nishimura
- National Institute for Physiological Sciences, National Institutes of Natural Sciences (NINS), Okazaki, 444-8787, Japan; Exploratory Research Center on Life and Living Systems, NINS, Okazaki, 444-8787, Japan; SOKENDAI (The Graduate University for Advanced Studies), Okazaki, 444-8787, Japan
| | - Mitsuhiro Fukata
- Department of Hematology, Oncology and Cardiovascular Medicine, Kyushu University Hospital, Fukuoka, 812-8582, Japan
| | - Shohei Moriyama
- Department of Hematology, Oncology and Cardiovascular Medicine, Kyushu University Hospital, Fukuoka, 812-8582, Japan
| | - Tomoya Ito
- Department of Physiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Keitaro Umezawa
- Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, 173-0015, Japan
| | - Yasuteru Urano
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan; Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Takaaki Akaike
- Graduate School of Medicine, Tohoku University, Sendai, 980-8575, Japan
| | - Koichi Akashi
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yasunari Kanda
- Division of Pharmacology, National Institute of Health Sciences (NIHS), Kanagawa, 210-9501, Japan
| | - Motohiro Nishida
- Department of Physiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan; National Institute for Physiological Sciences, National Institutes of Natural Sciences (NINS), Okazaki, 444-8787, Japan; Exploratory Research Center on Life and Living Systems, NINS, Okazaki, 444-8787, Japan; SOKENDAI (The Graduate University for Advanced Studies), Okazaki, 444-8787, Japan.
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192
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Wang Q, Wang X, Ding J, Huang L, Wang Z. Structural insight of cell surface sugars in viral infection and human milk glycans as natural antiviral substance. Int J Biol Macromol 2024; 277:133867. [PMID: 39009265 DOI: 10.1016/j.ijbiomac.2024.133867] [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: 04/03/2024] [Revised: 06/24/2024] [Accepted: 07/11/2024] [Indexed: 07/17/2024]
Abstract
Viral infections are caused by the adhesion of viruses to host cell receptors, including sialylated glycans, glycosaminoglycans, and human blood group antigens (HBGAs). Atomic-level structural information on the interactions between viral particles or proteins with glycans can be determined to provide precise targets for designing antiviral drugs. Milk glycans, existing as free oligosaccharides or glycoconjugates, have attracted increasing attention; milk glycans protect infants against infectious diseases, particularly poorly manageable viral infections. Furthermore, several glycans containing structurally distinct sialic acid/fucose/sulfate modifications in human milk acting as a "receptor decoy" and serving as the natural antiviral library, could interrupt virus-receptor interaction in the first line of defense for viral infection. This review highlights the basis of virus-glycan interactions, presents specific glycan receptor binding by gastroenterovirus viruses, including norovirus, enteroviruses, and the breakthroughs in the studies on the antiviral properties of human milk glycans, and also elucidates the role of glycans in respiratory viruses infection. In addition, recent advances in methods for performing virus/viral protein-glycan interactions were reported. Finally, we discuss the prospects and challenges of the studies on the clinical application of human milk glycan for viral interventions.
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Affiliation(s)
- Qingling Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Xiaoqin Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Jieqiong Ding
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Linjuan Huang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
| | - Zhongfu Wang
- Shaanxi Natural Carbohydrate Resource Engineering Research Center, College of Food Science and Technology, Northwest University, Xi'an 710069, China.
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193
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Chen D, Wang J, Cao J, Zhu G. cAMP-PKA signaling pathway and anxiety: Where do we go next? Cell Signal 2024; 122:111311. [PMID: 39059755 DOI: 10.1016/j.cellsig.2024.111311] [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: 06/24/2024] [Revised: 07/21/2024] [Accepted: 07/22/2024] [Indexed: 07/28/2024]
Abstract
Cyclic adenosine monophosphate (cAMP) is an intracellular second messenger that is derived from the conversion of adenosine triphosphate catalysed by adenylyl cyclase (AC). Protein kinase A (PKA), the main effector of cAMP, is a dimeric protein kinase consisting of two catalytic subunits and two regulatory subunits. When cAMP binds to the regulatory subunits of PKA, it leads to the dissociation and activation of PKA, which allows the catalytic subunit of PKA to phosphorylate target proteins, thereby regulating various physiological functions and metabolic processes in cellular function. Recent researches also implicate the involvement of cAMP-PKA signaling in the pathologenesis of anxiety disorder. However, there are still debates on the prevention and treatment of anxiety disorders from this signaling pathway. To review the function of cAMP-PKA signaling in anxiety disorder, we searched the publications with the keywords including "cAMP", "PKA" and "Anxiety" from Pubmed, Embase, Web of Science and CNKI databases. The results showed that the number of publications on cAMP-PKA pathway in anxiety disorder tended to increase. Bioinformatics results displayed a close association between the cAMP-PKA pathway and the occurrence of anxiety. Mechanistically, cAMP-PKA signaling could influence brain-derived neurotrophic factor and neuropeptide Y and participate in the regulation of anxiety. cAMP-PKA signaling could also oppose the dysfunctions of gamma-aminobutyric acid (GABA), intestinal flora, hypothalamic-pituitary-adrenal axis, neuroinflammation, and signaling proteins (MAPK and AMPK) in anxiety. In addition, chemical agents with the ability to activate cAMP-PKA signaling demonstrated therapy potential against anxiety disorders. This review emphasizes the central roles of cAMP-PKA signaling in anxiety and the targets of the cAMP-PKA pathway would be potential candidates for treatment of anxiety. Nevertheless, more laboratory investigations to improve the therapeutic effect and reduce the adverse effect, and continuous clinical research will warrant the drug development.
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Affiliation(s)
- Daokang Chen
- Key Laboratory of Xin'an Medicine, The Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jingji Wang
- Acupuncture and Moxibustion Clinical Medical Research Center of Anhui Province, The Second Affiliation Hospital of Anhui University of Chinese Medicine, Hefei 230061, China.
| | - Jian Cao
- Key Laboratory of Xin'an Medicine, The Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei 230012, China.
| | - Guoqi Zhu
- Key Laboratory of Xin'an Medicine, The Ministry of Education and Key Laboratory of Molecular Biology (Brain diseases), Anhui University of Chinese Medicine, Hefei 230012, China.
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194
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Calabretta MM, Gregucci D, Guardigli M, Michelini E. Low-cost and sustainable smartphone-based tissue-on-chip device for bioluminescence biosensing. Biosens Bioelectron 2024; 261:116454. [PMID: 38875866 DOI: 10.1016/j.bios.2024.116454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/27/2024] [Accepted: 05/29/2024] [Indexed: 06/16/2024]
Abstract
Several organ-on-chip and cell-on-chip devices have been reported, however, their main drawback is that they are not interoperable (i.e., they have been fabricated with customized equipment, thus cannot be applied in other facilities, unless having the same setup), and require cell-culture facilities and benchtop instrumentation. As a consequence, results obtained with such devices do not generally comply with the principles of findability, accessibility, interoperability, and reusability (FAIR). To overcome such limitation, leveraging cost-effective 3D printing we developed a bioluminescent tissue on-a-chip device that can be easily implemented in any laboratory. The device enables continuous monitoring of cell co-cultures expressing different bioluminescent reporter proteins and, thanks to the implementation of new highly bioluminescent luciferases having high pH and thermal stability, can be monitored via smartphone camera. Another relevant feature is the possibility to insert the chip into a commercial 24-well plate for use with standard benchtop instrumentation. The suitability of this device for 3D cell-based biosensing for monitoring activation of target molecular pathways, i.e., the inflammatory pathway via nuclear factor kappa-B (NF-κB) activation, and general cytotoxicity is here reported showing similar analytical performance when compared to conventional 3D cell-based assays performed in 24-well plates.
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Affiliation(s)
- Maria Maddalena Calabretta
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via P. Gobetti 85, 40129, Bologna, Italy; Center for Applied Biomedical Research (CRBA), Azienda Ospedaliero-Universitaria Policlinico S. Orsola-Malpighi, 40138, Bologna, Italy
| | - Denise Gregucci
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via P. Gobetti 85, 40129, Bologna, Italy; Center for Applied Biomedical Research (CRBA), Azienda Ospedaliero-Universitaria Policlinico S. Orsola-Malpighi, 40138, Bologna, Italy
| | - Massimo Guardigli
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via P. Gobetti 85, 40129, Bologna, Italy
| | - Elisa Michelini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via P. Gobetti 85, 40129, Bologna, Italy; Center for Applied Biomedical Research (CRBA), Azienda Ospedaliero-Universitaria Policlinico S. Orsola-Malpighi, 40138, Bologna, Italy; Health Sciences and Technologies Interdepartmental Center for Industrial Research (HSTICIR), University of Bologna, 40126, Bologna, Italy.
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195
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Wang Y, Lilienfeldt N, Hekimi S. Understanding coenzyme Q. Physiol Rev 2024; 104:1533-1610. [PMID: 38722242 DOI: 10.1152/physrev.00040.2023] [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: 10/16/2023] [Revised: 04/08/2024] [Accepted: 05/01/2024] [Indexed: 08/11/2024] Open
Abstract
Coenzyme Q (CoQ), also known as ubiquinone, comprises a benzoquinone head group and a long isoprenoid side chain. It is thus extremely hydrophobic and resides in membranes. It is best known for its complex function as an electron transporter in the mitochondrial electron transport chain (ETC) but is also required for several other crucial cellular processes. In fact, CoQ appears to be central to the entire redox balance of the cell. Remarkably, its structure and therefore its properties have not changed from bacteria to vertebrates. In metazoans, it is synthesized in all cells and is found in most, and maybe all, biological membranes. CoQ is also known as a nutritional supplement, mostly because of its involvement with antioxidant defenses. However, whether there is any health benefit from oral consumption of CoQ is not well established. Here we review the function of CoQ as a redox-active molecule in the ETC and other enzymatic systems, its role as a prooxidant in reactive oxygen species generation, and its separate involvement in antioxidant mechanisms. We also review CoQ biosynthesis, which is particularly complex because of its extreme hydrophobicity, as well as the biological consequences of primary and secondary CoQ deficiency, including in human patients. Primary CoQ deficiency is a rare inborn condition due to mutation in CoQ biosynthetic genes. Secondary CoQ deficiency is much more common, as it accompanies a variety of pathological conditions, including mitochondrial disorders as well as aging. In this context, we discuss the importance, but also the great difficulty, of alleviating CoQ deficiency by CoQ supplementation.
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Affiliation(s)
- Ying Wang
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - Noah Lilienfeldt
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - Siegfried Hekimi
- Department of Biology, McGill University, Montreal, Quebec, Canada
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196
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Zou X, Liang X, Dai W, Zhu T, Wang C, Zhou Y, Qian Y, Yan Z, Gao C, Gao L, Cui Y, Liu J, Meng Y. Peroxiredoxin 4 deficiency induces accelerated ovarian aging through destroyed proteostasis in granulosa cells. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167334. [PMID: 38971505 DOI: 10.1016/j.bbadis.2024.167334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/08/2024]
Abstract
Ovarian aging, a complex and challenging concern within the realm of reproductive medicine, is associated with reduced fertility, menopausal symptoms and long-term health risks. Our previous investigation revealed a correlation between Peroxiredoxin 4 (PRDX4) and human ovarian aging. The purpose of this research was to substantiate the protective role of PRDX4 against ovarian aging and elucidate the underlying molecular mechanism in mice. In this study, a Prdx4-/- mouse model was established and it was observed that the deficiency of PRDX4 led to only an accelerated decline of ovarian function in comparison to wild-type (WT) mice. The impaired ovarian function observed in this study can be attributed to an imbalance in protein homeostasis, an exacerbation of endoplasmic reticulum stress (ER stress), and ultimately an increase in apoptosis of granulosa cells. Furthermore, our research reveals a noteworthy decline in the expression of Follicle-stimulating hormone receptor (FSHR) in aging Prdx4-/- mice, especially the functional trimer, due to impaired disulfide bond formation. Contrarily, the overexpression of PRDX4 facilitated the maintenance of protein homeostasis, mitigated ER stress, and consequently elevated E2 levels in a simulated KGN cell aging model. Additionally, the overexpression of PRDX4 restored the expression of the correct spatial conformation of FSHR, the functional trimer. In summary, our research reveals the significant contribution of PRDX4 in delaying ovarian aging, presenting a novel and promising therapeutic target for ovarian aging from the perspective of endoplasmic reticulum protein homeostasis.
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Affiliation(s)
- Xiaofei Zou
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Xiuru Liang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Wangjuan Dai
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Ting Zhu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Chaoyi Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yutian Zhou
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yi Qian
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Zhengjie Yan
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Chao Gao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Li Gao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yugui Cui
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Jiayin Liu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yan Meng
- State Key Laboratory of Reproductive Medicine and Offspring Health, Clinical Center of Reproductive Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.
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197
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Li J, Wu L, Zhou Y, Xie Y, Lu F, Chang F, Yang X, Han X, Cheng M. Kobresia humilis via root-released flavonoids recruit Bacillus for promoted growth. Microbiol Res 2024; 287:127866. [PMID: 39111018 DOI: 10.1016/j.micres.2024.127866] [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: 06/05/2024] [Revised: 07/15/2024] [Accepted: 08/02/2024] [Indexed: 08/22/2024]
Abstract
Alpine meadows, which are critical for biodiversity and ecosystem services, are increasingly degrading, necessitating effective restoration strategies. This study explored the mechanism by which Kobresia humilis, an alpine meadow-constructive species, modulates the rhizosphere microbiome via root exudates to enhance growth. Field investigations revealed that the plant height of K. humilis in a severely degraded (SD) alpine meadow was significantly higher than that in other K. humilis populations. Consequently, we analysed the differences between this plot and other K. humilis samples with different degrees of degradation to explore the reasons underlying the phenotypic differences in K. humilis. 16 S rRNA amplicon sequencing results showed that the SD plots were significantly enriched with more Bacillus, altering the composition of the rhizosphere microbial community of K. humilis. The collection and analysis of root exudates from various K. humilis locations revealed distinct differences. Procrustes analysis indicated a strong correlation between the root exudates and the rhizosphere microbiome composition of K. humilis. Model-based integration of metabolite observations, species abundance 2 (MIMOSA2), and Spearman's rank correlation coefficient analysis were used to identify the root exudates potentially related to the enrichment and recruitment of Bacillus. Bacillus from SD samples was isolated and screened, and the representative strain D334 was found to be differentially enriched compared to other samples. A series of in vitro experiments with the screened root exudates and strain D334 demonstrated that K. humilis could recruit Bacillus and promote its colonisation by releasing flavonoids, particularly baicalin. Additionally, K. humilis can release sucrose and riboflavin, which promote strain growth. Finally, soil microbiome transplantation experiments confirmed that different K. humilis phenotypes were closely related to the functions of the rhizosphere microbiome, especially in root morphological shaping. Moreover, the effects of Bacillus inoculation and the microbiome on the plant phenotypes were consistent. In summary, this study revealed a new mechanism by which K. humilis recruits rhizosphere growth-promoting bacteria and enhances soil nutrient utilisation, thereby promoting plant growth. These findings provide a theoretical basis for ecological restoration using soil microbial communities and clarify the relationship between plant metabolites and microbial community assembly.
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Affiliation(s)
- Junxi Li
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Lingling Wu
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Yizhi Zhou
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Yongli Xie
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China; State Key Laboratory of Plateau Ecology and Agriculture of Qinghai University, Xining 810016, China; Key Laboratory of Use of Forage Germplasm Resources on Tibetan Plateau of Qinghai Province, Xining 810016, China.
| | - Fuwei Lu
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Feifei Chang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Xue Yang
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China; State Key Laboratory of Plateau Ecology and Agriculture of Qinghai University, Xining 810016, China
| | - Xianzhong Han
- Menyuan County Grassland Station, Menyuan 810399, China
| | - Mingxuan Cheng
- College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
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198
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Wang Q, Shan L. Role of the CARD8 inflammasome in HIV pathogenesis. CELL INSIGHT 2024; 3:100193. [PMID: 39183739 PMCID: PMC11342869 DOI: 10.1016/j.cellin.2024.100193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/17/2024] [Accepted: 07/17/2024] [Indexed: 08/27/2024]
Abstract
Human immunodeficiency virus (HIV) continues to be a significant global health challenge despite decades of research and advances in treatment. Substantial gaps in our understanding of the mechanisms of HIV pathogenesis and the host immune responses still exist. The interaction between HIV and these immune responses is pivotal in the disease progression to acquired immunodeficiency syndrome (AIDS). Recently, the caspase recruitment domain-containing protein 8 (CARD8) inflammasome has emerged as a crucial factor in orchestrating innate immune responses to HIV infection and exerting a substantial impact on viral pathogenesis. CARD8 restricts viral replication by detecting the activity of HIV protease. Conversely, it also contributes to the depletion of CD4+ T cells, a key feature of disease progression towards AIDS. The purpose of this review is to summarize the role of the CARD8 inflammasome in HIV pathogenesis, delving into its mechanisms of action and potential implications for the development of therapeutic strategies.
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Affiliation(s)
- Qiankun Wang
- Institute of Infectious Diseases, Shenzhen Bay Laboratory, Shenzhen, Guangdong 518000, China
| | - Liang Shan
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, 63110, USA
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199
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Zhang N, Liu WT, Cui XY, Liu SM, Ma CX, Liang JH. Design and structure-activity relationships of ether-linked alkylides: Hybrids of 3-O-descladinosyl macrolides and quinolone motifs. Bioorg Chem 2024; 151:107712. [PMID: 39146761 DOI: 10.1016/j.bioorg.2024.107712] [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: 07/19/2024] [Revised: 08/07/2024] [Accepted: 08/09/2024] [Indexed: 08/17/2024]
Abstract
Ketolides (3-keto) such as TE-802 and acylides (3-O-acyl) like TEA0929 are ineffective against constitutively resistant pathogens harboring erythromycin ribosomal methylation (erm) genes. Following our previous work on alkylides (3-O-alkyl), we explored the structure-activity relationships of hybrids combining (R/S) 3-descladinosyl erythromycin with 6/7-quinolone motifs, featuring extended ether-linked spacers, with a focus on their efficacy against pathogens bearing constitutive erm gene resistance. Optimized compounds 17a and 31f not only reinstated efficacy against inducibly resistant pathogens but also demonstrated significantly augmented activities against constitutively resistant strains of Streptococcus pneumoniae and Streptococcus pyogenes, which are typically refractory to existing C-3 modified macrolides. Notably, hybrid 31f (coded ZN-51) represented a pioneering class of agents distinguished by its dual modes of action, with ribosomes as the primary target and topoisomerases as the secondary target. As a novel chemotype of macrolide-quinolone hybrids, alkylide 31f is a valuable addition to our armamentarium against macrolide-resistant bacteria.
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Affiliation(s)
- Na Zhang
- Key Laboratory of Medicinal Molecule Science and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Wen-Tian Liu
- Key Laboratory of Medicinal Molecule Science and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Xin-Yi Cui
- Key Laboratory of Medicinal Molecule Science and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Si-Meng Liu
- Key Laboratory of Medicinal Molecule Science and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Cong-Xuan Ma
- Key Laboratory of Medicinal Molecule Science and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Jian-Hua Liang
- Key Laboratory of Medicinal Molecule Science and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.
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200
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Querci L, Piccioli M, Ciofi-Baffoni S, Banci L. Structural aspects of iron‑sulfur protein biogenesis: An NMR view. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119786. [PMID: 38901495 DOI: 10.1016/j.bbamcr.2024.119786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 05/15/2024] [Accepted: 06/10/2024] [Indexed: 06/22/2024]
Abstract
Over the last decade, structural aspects involving iron‑sulfur (Fe/S) protein biogenesis have played an increasingly important role in understanding the high mechanistic complexity of mitochondrial and cytosolic machineries maturing Fe/S proteins. In this respect, solution NMR has had a significant impact because of its ability to monitor transient protein-protein interactions, which are abundant in the networks of pathways leading to Fe/S cluster biosynthesis and transfer, as well as thanks to the developments of paramagnetic NMR in both terms of new methodologies and accurate data interpretation. Here, we review the use of solution NMR in characterizing the structural aspects of human Fe/S proteins and their interactions in the framework of Fe/S protein biogenesis. We will first present a summary of the recent advances that have been achieved by paramagnetic NMR and then we will focus our attention on the role of solution NMR in the field of human Fe/S protein biogenesis.
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Affiliation(s)
- Leonardo Querci
- Magnetic Resonance Center CERM, University of Florence, Via Luigi Sacconi 6, Sesto Fiorentino, 50019 Florence, Italy; Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Florence, Italy
| | - Mario Piccioli
- Magnetic Resonance Center CERM, University of Florence, Via Luigi Sacconi 6, Sesto Fiorentino, 50019 Florence, Italy; Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Florence, Italy
| | - Simone Ciofi-Baffoni
- Magnetic Resonance Center CERM, University of Florence, Via Luigi Sacconi 6, Sesto Fiorentino, 50019 Florence, Italy; Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Florence, Italy.
| | - Lucia Banci
- Magnetic Resonance Center CERM, University of Florence, Via Luigi Sacconi 6, Sesto Fiorentino, 50019 Florence, Italy; Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019 Florence, Italy; Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP), Via Luigi Sacconi 6, Sesto Fiorentino, 50019 Florence, Italy.
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