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Zhao KY, Fang Y, Xu RJ, Zhang J, Sun B, Li XP. PoIL8-L, a teleost interleukin-8 like, enhances leukocyte cellular vitality and host defense against bacterial infections in Japanese flounder (Paralichthys olivaceus). FISH & SHELLFISH IMMUNOLOGY 2024; 153:109876. [PMID: 39236861 DOI: 10.1016/j.fsi.2024.109876] [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: 06/12/2024] [Revised: 08/09/2024] [Accepted: 09/02/2024] [Indexed: 09/07/2024]
Abstract
Interleukin-8 (IL-8), a CXC chemokine, exerts pivotal effect on cell migration, inflammatory response, and immune regulation. In this study, we examined the immunological characteristics of an IL-8 like homologue (PoIL8-L) in Japanese flounder (Paralichthys olivaceus). PoIL8-L contains a conserved chemokine CXC domain and 105 amino acid residues. PoIL8-L expression in tissues was constitutive, and significantly regulated by V. havieri or E. tarda infection. In vitro, rPoIL8-L could bind to eight tested bacteria, exhibited bacteriostatic and bactericidal effects against certain bacteria, and could bind to the targeted bacterial Ⅳ pilin protein rPilA of E. tarda. Furthermore, rPoIL8-L could attach to peripheral blood leukocytes, and enhance their immune genes expression, respiratory burst, chemotaxis, proliferation, acid phosphatase activity, and phagocytic activity. Additionally, rPoIL8-L induce neutrophils to extrude neutrophil extracellular traps. In vivo, rPoIL8-L could promote host resistance to E. tarda infection. In summary, these findings provide fresh perspectives on the immunological antibacterial properties of IL-8 in teleost.
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Affiliation(s)
- Kun-Yu Zhao
- School of Ocean, Yantai University, Yantai, China
| | - Yue Fang
- School of Ocean, Yantai University, Yantai, China
| | | | - Jian Zhang
- School of Ocean, Yantai University, Yantai, China
| | - Bin Sun
- School of Ocean, Fujian Polytechnic Normal University, Fuzhou, China.
| | - Xue-Peng Li
- School of Ocean, Yantai University, Yantai, China.
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302
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Emvalomenos GM, Kang JWM, Jupp B, Mychasiuk R, Keay KA, Henderson LA. Recent developments and challenges in positron emission tomography imaging of gliosis in chronic neuropathic pain. Pain 2024; 165:2184-2199. [PMID: 38713812 DOI: 10.1097/j.pain.0000000000003247] [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: 12/14/2023] [Accepted: 03/05/2024] [Indexed: 05/09/2024]
Abstract
ABSTRACT Understanding the mechanisms that underpin the transition from acute to chronic pain is critical for the development of more effective and targeted treatments. There is growing interest in the contribution of glial cells to this process, with cross-sectional preclinical studies demonstrating specific changes in these cell types capturing targeted timepoints from the acute phase and the chronic phase. In vivo longitudinal assessment of the development and evolution of these changes in experimental animals and humans has presented a significant challenge. Recent technological advances in preclinical and clinical positron emission tomography, including the development of specific radiotracers for gliosis, offer great promise for the field. These advances now permit tracking of glial changes over time and provide the ability to relate these changes to pain-relevant symptomology, comorbid psychiatric conditions, and treatment outcomes at both a group and an individual level. In this article, we summarize evidence for gliosis in the transition from acute to chronic pain and provide an overview of the specific radiotracers available to measure this process, highlighting their potential, particularly when combined with ex vivo / in vitro techniques, to understand the pathophysiology of chronic neuropathic pain. These complementary investigations can be used to bridge the existing gap in the field concerning the contribution of gliosis to neuropathic pain and identify potential targets for interventions.
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Affiliation(s)
- Gaelle M Emvalomenos
- School of Medical Sciences [Neuroscience], and the Brain and Mind Centre, The University of Sydney, Sydney, Australia
| | - James W M Kang
- School of Medical Sciences [Neuroscience], and the Brain and Mind Centre, The University of Sydney, Sydney, Australia
| | - Bianca Jupp
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia
| | - Richelle Mychasiuk
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia
| | - Kevin A Keay
- School of Medical Sciences [Neuroscience], and the Brain and Mind Centre, The University of Sydney, Sydney, Australia
| | - Luke A Henderson
- School of Medical Sciences [Neuroscience], and the Brain and Mind Centre, The University of Sydney, Sydney, Australia
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303
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Keshri PK, Singh SP. Unraveling the AKT/ERK cascade and its role in Parkinson disease. Arch Toxicol 2024; 98:3169-3190. [PMID: 39136731 DOI: 10.1007/s00204-024-03829-9] [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: 04/02/2024] [Accepted: 07/25/2024] [Indexed: 09/17/2024]
Abstract
Parkinson disease represents a significant and growing burden on global healthcare systems, necessitating a deeper understanding of their underlying molecular mechanisms for the development of effective treatments. The AKT and ERK pathways play crucial roles in the disease, influencing multiple cellular pathways that support neuronal survival. Researchers have made notable progress in uncovering how these pathways are controlled by upstream kinases and how their downstream effects contribute to cell signalling. However, as we delve deeper into their intricacies, we encounter increasing complexity, compounded by the convergence of multiple signalling pathways. Many of their targets overlap with those of other kinases, and they not only affect specific substrates but also influence entire signalling networks. This review explores the intricate interplay of the AKT/ERK pathways with several other signalling cascades, including oxidative stress, endoplasmic reticulum stress, calcium homeostasis, inflammation, and autophagy, in the context of Parkinson disease. We discuss how dysregulation of these pathways contributes to disease progression and neuronal dysfunction, highlighting potential therapeutic targets for intervention. By elucidating the complex network of interactions between the AKT/ERK pathways and other signalling cascades, this review aims to provide insights into the pathogenesis of Parkinson disease and describe the development of novel therapeutic strategies.
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Affiliation(s)
- Priyanka Kumari Keshri
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Surya Pratap Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India.
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304
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Takeda K, Sarata A, Terasaki M, Kubota A, Shimizu K, Kamata R. Assessment of the Aryl Hydrocarbon Receptor-Mediated Effects of Aromatic Sensitizers in Paper Recycling Effluent Employing Zebrafish Embryos and in Silico Docking. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2024; 43:2176-2188. [PMID: 39092783 DOI: 10.1002/etc.5969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 08/04/2024]
Abstract
Aromatic sensitizers and related substances (SRCs), which are crucial in the paper industry for facilitating color-forming and color-developing chemical reactions, inadvertently contaminate effluents during paper recycling. Owing to their structural resemblance to endocrine-disrupting aromatic organic compounds, concerns have arisen about potential adverse effects on aquatic organisms. We focused on SRC effects via the aryl hydrocarbon receptor (AHR), employing molecular docking simulations and zebrafish (Danio rerio) embryo exposure assessments. Molecular docking revealed heightened binding affinities between certain SRCs in the paper recycling effluents and zebrafish Ahr2 and human AHR, which are pivotal components in the SRC toxicity mechanism. Fertilized zebrafish eggs were exposed to SRCs for up to 96 h post fertilization; among these substances, benzyl 2-naphthyl ether (BNE) caused morphological abnormalities, such as pericardial edema and shortened body length, at relatively low concentrations (1 μM) during embryogenesis. Gene expression of cytochrome P450 1A (cyp1a) and ahr2 was also significantly increased by BNE. Co-exposure to the AHR antagonist CH-223191 only partially mitigated BNE's phenotypic effects, despite the effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin being relatively well restored by CH-223191, indicating BNE's AHR-independent toxic mechanisms. Furthermore, some SRCs, including BNE, exhibited in silico binding affinity to the estrogen receptor and upregulation of cyp19a1b gene expression. Therefore, additional insights into the toxicity of SRCs and their mechanisms are essential. The present results provide important information on SRCs and other papermaking chemicals that could help minimize the environmental impact of the paper industry. Environ Toxicol Chem 2024;43:2176-2188. © 2024 SETAC.
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Affiliation(s)
- Kazuki Takeda
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University, Towada-shi, Aomori, Japan
- Department of Computer Science, Tokyo Institute of Technology, Yokohama-shi, Kanagawa, Japan
| | - Aoi Sarata
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University, Towada-shi, Aomori, Japan
| | - Masanori Terasaki
- Environmental Chemistry Laboratory, Graduate School of Arts and Sciences, Iwate University, Morioka City, Iwate, Japan
| | - Akira Kubota
- Laboratory of Toxicology, Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Keita Shimizu
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University, Towada-shi, Aomori, Japan
| | - Ryo Kamata
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University, Towada-shi, Aomori, Japan
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305
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Nacarkucuk E, Bernis ME, Bremer AS, Grzelak K, Zweyer M, Maes E, Burkard H, Sabir H. Neuroprotective Effect of Melatonin in a Neonatal Hypoxia-Ischemia Rat Model Is Regulated by the AMPK/mTOR Pathway. J Am Heart Assoc 2024; 13:e036054. [PMID: 39319465 DOI: 10.1161/jaha.124.036054] [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: 04/22/2024] [Accepted: 08/09/2024] [Indexed: 09/26/2024]
Abstract
BACKGROUND Melatonin has been shown to be neuroprotective in different animal models of neonatal hypoxic-ischemic brain injury. However, its exact molecular mechanism of action remains unknown. Our aim was to prove melatonin's short- and long-term neuroprotection and investigate its role on the AMPK (AMP-activated protein kinase)/mTOR (mammalian target of rapamycin) pathway following neonatal hypoxic-ischemic brain injury. METHODS AND RESULTS Seven-day-old Wistar rat pups were exposed to hypoxia-ischemia, followed by melatonin or vehicle treatment. Detailed analysis of the AMPK/mTOR/autophagy pathway, short- and long-term neuroprotection, myelination, and oligodendrogenesis was performed at different time points. At 7 days after hypoxia-ischemia, melatonin-treated animals showed a significant decrease in tissue loss, increased oligodendrogenesis, and myelination. Long-term neurobehavioral results showed significant motor improvement following melatonin treatment. Molecular pathway analysis showed a decrease in the AMPK expression, with a significant increase at mTOR's downstream substrates, and a significant decrease at the autophagy marker levels in the melatonin group compared with the vehicle group. CONCLUSIONS Melatonin treatment reduced brain area loss and promoted oligodendrogenesis with a clear improvement of motor function. We found that melatonin associated neuroprotection is regulated via the AMPK/mTOR/autophagy pathway. Considering the beneficial effects of melatonin and the results of our study, melatonin seems to be an optimal candidate for the treatment of newborns with hypoxic-ischemic brain injury in high- as well as in low- and middle-income countries.
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Affiliation(s)
- Efe Nacarkucuk
- Department of Neonatology and Pediatric Intensive Care Children's Hospital University of Bonn Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Bonn Germany
| | - Maria E Bernis
- Department of Neonatology and Pediatric Intensive Care Children's Hospital University of Bonn Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Bonn Germany
| | - Anna-Sophie Bremer
- Department of Neonatology and Pediatric Intensive Care Children's Hospital University of Bonn Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Bonn Germany
| | - Kora Grzelak
- Department of Neonatology and Pediatric Intensive Care Children's Hospital University of Bonn Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Bonn Germany
| | - Margit Zweyer
- Department of Neonatology and Pediatric Intensive Care Children's Hospital University of Bonn Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Bonn Germany
| | - Elke Maes
- Department of Neonatology and Pediatric Intensive Care Children's Hospital University of Bonn Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Bonn Germany
| | - Hannah Burkard
- Department of Neonatology and Pediatric Intensive Care Children's Hospital University of Bonn Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Bonn Germany
| | - Hemmen Sabir
- Department of Neonatology and Pediatric Intensive Care Children's Hospital University of Bonn Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Bonn Germany
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306
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Liccardo F, Morstein J, Lin TY, Pampel J, Lang D, Shokat KM, Irannejad R. Subcellular activation of β-adrenergic receptors using a spatially restricted antagonist. Proc Natl Acad Sci U S A 2024; 121:e2404243121. [PMID: 39331410 DOI: 10.1073/pnas.2404243121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 08/19/2024] [Indexed: 09/28/2024] Open
Abstract
Gprotein-coupled receptors (GPCRs) regulate several physiological and pathological processes and represent the target of approximately 30% of Food and Drug Administration-approved drugs. GPCR-mediated signaling was thought to occur exclusively at the plasma membrane. However, recent studies have unveiled their presence and function at subcellular membrane compartments. There is a growing interest in studying compartmentalized signaling of GPCRs. This requires development of tools to separate GPCR signaling at the plasma membrane from the ones initiated at intracellular compartments. We leveraged the structural and pharmacological information available for β-adrenergic receptors (βARs) and focused on β1AR as exemplary GPCR that functions at subcellular compartments, and rationally designed spatially restricted antagonists. We generated a cell-impermeable βAR antagonist by conjugating a suitable pharmacophore to a sulfonate-containing fluorophore. This cell-impermeable antagonist only inhibited β1AR on the plasma membrane. In contrast, a cell-permeable βAR antagonist containing a nonsulfonated fluorophore efficiently inhibited both the plasma membrane and Golgi pools of β1ARs. Furthermore, the cell-impermeable antagonist selectively inhibited the phosphorylation of PKA downstream effectors near the plasma membrane, which regulate sarcoplasmic reticulum (SR) Ca2+ release in adult cardiomyocytes, while the β1AR Golgi pool remained active. Our tools offer promising avenues for investigating compartmentalized βAR signaling in various contexts, potentially advancing our understanding of βAR-mediated cellular responses in health and disease. They also offer a general strategy to study compartmentalized signaling for other GPCRs in various biological systems.
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Affiliation(s)
- Federica Liccardo
- Cardiovascular Research Institute, Department of Biochemistry & Biophysics, University of California, San Francisco, CA 94143
- Department of Biochemistry & Biophysics, University of California, San Francisco, CA 94143
| | - Johannes Morstein
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143
| | - Ting-Yu Lin
- Cardiovascular Research Institute, Department of Biochemistry & Biophysics, University of California, San Francisco, CA 94143
| | - Julius Pampel
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143
| | - Di Lang
- Cardiovascular Research Institute, Department of Biochemistry & Biophysics, University of California, San Francisco, CA 94143
| | - Kevan M Shokat
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143
- HHMI, University of California, San Francisco, CA 94143
| | - Roshanak Irannejad
- Cardiovascular Research Institute, Department of Biochemistry & Biophysics, University of California, San Francisco, CA 94143
- Department of Biochemistry & Biophysics, University of California, San Francisco, CA 94143
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307
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Dai HC, Ji RL, Tao YX. SHU9119 and MBP10 are biased ligands at the human melanocortin-4 receptor. Biochem Pharmacol 2024; 228:116325. [PMID: 38815629 DOI: 10.1016/j.bcp.2024.116325] [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: 01/22/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
The melanocortin-4 receptor (MC4R), a G protein-coupled receptor, is critically involved in regulating energy homeostasis as well as modulation of reproduction and sexual function. Two peptide antagonists (SHU9119 and MBP10) were derived from the endogenous agonist α-melanocyte stimulating hormone. But their pharmacology at human MC4R is not fully understood. Herein, we performed detailed pharmacological studies of SHU9119 and MBP10 on wild-type (WT) and six naturally occurring constitutively active MC4Rs. Both ligands had no or negligible agonist activity in Gαs-cAMP signaling on WT MC4R, but stimulated extracellular signal-regulated kinases 1 and 2 (ERK1/2) activation on WT and mutant MC4Rs. Mechanistic studies revealed that SHU9119 and MBP10 stimulated ERK1/2 signaling of MC4R by different mechanisms, with SHU9119-stimulated ERK1/2 signaling mediated by phosphatidylinositol 3-kinase (PI3K) and MBP10-initiated ERK1/2 activation through PI3K and β-arrestin. In summary, our studies demonstrated that SHU9119 and MBP10 were biased ligands for MC4R, preferentially activating ERK1/2 signaling through different mechanisms. SHU9119 acted as a biased ligand and MBP10 behaved as a biased allosteric modulator.
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Affiliation(s)
- Han-Chuan Dai
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, United States; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Ren-Lei Ji
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, United States.
| | - Ya-Xiong Tao
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, United States.
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308
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Ji YW, Wen XY, Tang HP, Jin ZS, Su WT, Zhou L, Xia ZY, Xia ZY, Lei SQ. DJ-1: Potential target for treatment of myocardial ischemia-reperfusion injury. Biomed Pharmacother 2024; 179:117383. [PMID: 39232383 DOI: 10.1016/j.biopha.2024.117383] [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: 08/29/2024] [Accepted: 08/30/2024] [Indexed: 09/06/2024] Open
Abstract
Ischemic heart disease (IHD) is a significant global health concern, resulting in high rates of mortality and disability among patients. Although coronary blood flow reperfusion is a key treatment for IHD, it often leads to acute myocardial ischemia-reperfusion injury (IRI). Current intervention strategies have limitations in providing adequate protection for the ischemic myocardium. DJ-1, originally known as a Parkinson's disease related protein, is a highly conserved cytoprotective protein. It is involved in enhancing mitochondrial function, scavenging reactive oxygen species (ROS), regulating autophagy, inhibiting apoptosis, modulating anaerobic metabolism, and exerting anti-inflammatory effects. DJ-1 is also required for protective strategies, such as ischemic preconditioning, ischemic postconditioning, remote ischemic preconditioning and pharmacological conditioning. Therefore, DJ-1 emerges as a potential target for the treatment of myocardial IRI. Our comprehensive review delves into its protective mechanisms in myocardial IRI and the structural foundations underlying its functions.
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Affiliation(s)
- Yan-Wei Ji
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xin-Yu Wen
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - He-Peng Tang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhen-Shuai Jin
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wa-Ting Su
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lu Zhou
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhong-Yuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zheng-Yuan Xia
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shao-Qing Lei
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China.
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309
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Langleib M, Calvelo J, Costábile A, Castillo E, Tort JF, Hoffmann FG, Protasio AV, Koziol U, Iriarte A. Evolutionary analysis of species-specific duplications in flatworm genomes. Mol Phylogenet Evol 2024; 199:108141. [PMID: 38964593 DOI: 10.1016/j.ympev.2024.108141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 06/15/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
Platyhelminthes, also known as flatworms, is a phylum of bilaterian invertebrates infamous for their parasitic representatives. The classes Cestoda, Monogenea, and Trematoda comprise parasitic helminths inhabiting multiple hosts, including fishes, humans, and livestock, and are responsible for considerable economic damage and burden on human health. As in other animals, the genomes of flatworms have a wide variety of paralogs, genes related via duplication, whose origins could be mapped throughout the evolution of the phylum. Through in-silico analysis, we studied inparalogs, i.e., species-specific duplications, focusing on their biological functions, expression changes, and evolutionary rate. These genes are thought to be key players in the adaptation process of species to each particular niche. Our results showed that genes related with specific functional terms, such as response to stress, transferase activity, oxidoreductase activity, and peptidases, are overrepresented among inparalogs. This trend is conserved among species from different classes, including free-living species. Available expression data from Schistosoma mansoni, a parasite from the trematode class, demonstrated high conservation of expression patterns between inparalogs, but with notable exceptions, which also display evidence of rapid evolution. We discuss how natural selection may operate to maintain these genes and the particular duplication models that fit better to the observations. Our work supports the critical role of gene duplication in the evolution of flatworms, representing the first study of inparalogs evolution at the genome-wide level in this group.
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Affiliation(s)
- Mauricio Langleib
- Laboratorio de Biología Computacional, Departamento de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay; Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Javier Calvelo
- Laboratorio de Biología Computacional, Departamento de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Alicia Costábile
- Sección Bioquímica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Estela Castillo
- Laboratorio de Biología Parasitaria, Instituto de Higiene, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - José F Tort
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Federico G Hoffmann
- Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Mississippi, United States of America; Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi, United States of America
| | - Anna V Protasio
- Department of Pathology, University of Cambridge, Tennis Court Road, CB2 1QP, Cambridge, United Kingdom
| | - Uriel Koziol
- Sección Biología Celular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Andrés Iriarte
- Laboratorio de Biología Computacional, Departamento de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
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310
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Chen X, Wu F, Chen C, Ren Q, Zhang A. Ginkgo Biloba Extract Can Antagonize Subchronic Arsenite Exposure-Induced Hepatocyte Senescence by Inhibiting Oxidative Damage and Inflammation in Rats. Biol Trace Elem Res 2024; 202:4596-4604. [PMID: 38110608 DOI: 10.1007/s12011-023-04021-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
A growing body of evidence suggests that long-term arsenic exposure can induce liver injury. Our previous studies have demonstrated that liver injury occurs in arsenic-poisoning patients and arsenic-exposed rats. However, therapeutic targets are still unclear, and there is a lack of effective drugs. This study aimed to investigate the effects of sodium arsenite (arsenite) exposure on hepatocyte senescence and the intervention effect of ginkgo biloba extract in rats. In this study, 24 male Sprague-Dawley rats (weighing 180-200 g) were randomized into three groups. The control group received a normal diet, and the arsenic-exposed group was given 10 mg/L arsenite for 3 months by free drinking along with a normal diet. The ginkgo biloba extract treatment group was consecutively administered EGb761 (10 mg/kg, by gavage) for 1 month following 2 months of arsenite exposure. Our results showed that exposure to 10 mg/L arsenite induced narrowing of the hepatic sinus space, enlargement of hepatocytes, and increased multinucleated hepatocytes and inflammatory cell infiltration in rat liver tissue compared with the normal control group. Moreover, 10 mg/L arsenite also caused abnormal expression of inflammation-related indices (IL1-β, IL-6, TNF-α), oxidative damage-related indices (SOD, MDA, GPx), and senescence-related proteins (p16, p-p53, E2F1). EGb761 could effectively reduce the pathological damage of liver tissue and antagonize the abnormal expression of liver tissue inflammation and oxidative damage-related indices as well as cellular senescence-related proteins caused by arsenite exposure. Notably, EGb761 reduced the accumulation of arsenic in rat liver tissues. These results suggested that EGb761 could effectively alleviate subchronic arsenic exposure-induced senescence of hepatocytes, which may be achieved partially through inhibiting inflammation and oxidative damage in rats. This study may provide a new therapeutic target for arsenic-induced liver injury.
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Affiliation(s)
- Xiong Chen
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, School of Public Health, Guizhou Medical University, Guiyang, 550025, China.
| | - Fan Wu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, School of Public Health, Guizhou Medical University, Guiyang, 550025, China
| | - Cheng Chen
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, School of Public Health, Guizhou Medical University, Guiyang, 550025, China
| | - Qian Ren
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, School of Public Health, Guizhou Medical University, Guiyang, 550025, China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, School of Public Health, Guizhou Medical University, Guiyang, 550025, China.
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311
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Chen L, Tang H, Hu T, Wang J, Ouyang Q, Zhu X, Wang R, Huang W, Huang Z, Chen J. Three Ru(II) complexes modulate the antioxidant transcription factor Nrf2 to overcome cisplatin resistance. J Inorg Biochem 2024; 259:112666. [PMID: 39029397 DOI: 10.1016/j.jinorgbio.2024.112666] [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: 02/07/2024] [Revised: 06/14/2024] [Accepted: 07/12/2024] [Indexed: 07/21/2024]
Abstract
Here, we designed, synthesized and characterized three new cyclometalated Ru(II) complexes, [Ru(phen)2(1-(4-Ph-Ph)-IQ)]+ (phen = 1,10-phenanthroline, IQ = isoquinoline, RuIQ9), [Ru(phen)2(1-(4-Ph-Ph)-7-OCH3-IQ)]+ (RuIQ10), and [Ru(phen)2(1-(4-Ph-Ph)-6,7-(OCH3)2-IQ)]+ (RuIQ11). The cytotoxicity experiments conducted on both 2D and 3D multicellular tumor spheroids (MCTSs) indicated that complexes RuIQ9-11 exhibited notably higher cytotoxicity against A549 and A549/DDP cells when compared to the ligands and precursor compounds as well as clinical cisplatin. Moreover, the Ru(II) complexes displayed low toxicity when tested on normal HBE cells in vitro and exposed to zebrafish embryos in vivo. In addition, complexes RuIQ9-11 could inhibit A549 and A549/DDP cell migration and proliferation by causing cell cycle arrest, mitochondrial dysfunction, and elevating ROS levels to induce apoptosis in these cells. Mechanistic studies revealed that RuIQ9-11 could suppress the expression of Nrf2 and its downstream antioxidant protein HO-1 by inhibiting Nrf2 gene transcription in drug-resistant A549/DDP cells. Simultaneously, they inhibited the expression of efflux proteins MRP1 and p-gp in drug-resistant cells, ensuring the accumulation of the complexes within the cells. This led to an increase in intracellular ROS levels in drug-resistant cells, ultimately causing damage and cell death, thus overcoming cisplatin resistance. More importantly, RuIQ11 could effectively inhibit the migration and proliferation of drug-resistant cells within zebrafish, addressing the issue of cisplatin resistance. Accordingly, the prepared Ru(II) complexes possess significant potential for development as highly effective and low-toxicity lung cancer therapeutic agents to overcome cisplatin resistance.
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Affiliation(s)
- Lanmei Chen
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China; Key Laboratory of Computer-Aided Drug Design of Dongguan City, School of Pharmacy, Guangdong Medical University, Dongguan, Guangdong 523808, PR China
| | - Hong Tang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Tianling Hu
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Jie Wang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Qianqian Ouyang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Xufeng Zhu
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China.
| | - Rui Wang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Wenyong Huang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Zunnan Huang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China; Key Laboratory of Computer-Aided Drug Design of Dongguan City, School of Pharmacy, Guangdong Medical University, Dongguan, Guangdong 523808, PR China.
| | - Jincan Chen
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China; Key Laboratory of Computer-Aided Drug Design of Dongguan City, School of Pharmacy, Guangdong Medical University, Dongguan, Guangdong 523808, PR China.
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312
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Uno Y, Shimizu M, Yamazaki H. A variety of cytochrome P450 enzymes and flavin-containing monooxygenases in dogs and pigs commonly used as preclinical animal models. Biochem Pharmacol 2024; 228:116124. [PMID: 38490520 DOI: 10.1016/j.bcp.2024.116124] [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: 01/16/2024] [Revised: 02/29/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
Drug oxygenation is mainly mediated by cytochromes P450 (P450s, CYPs) and flavin-containing monooxygenases (FMOs). Polymorphic variants of P450s and FMOs are known to influence drug metabolism. Species differences exist in terms of drug metabolism and can be important when determining the contributions of individual enzymes. The success of research into drug-metabolizing enzymes and their impacts on drug discovery and development has been remarkable. Dogs and pigs are often used as preclinical animal models. This research update provides information on P450 and FMO enzymes in dogs and pigs and makes comparisons with their human enzymes. Newly identified dog CYP3A98, a testosterone 6β- and estradiol 16α-hydroxylase, is abundantly expressed in small intestine and is likely the major CYP3A enzyme in small intestine, whereas dog CYP3A12 is the major CYP3A enzyme in liver. The roles of recently identified dog CYP2J2 and pig CYP2J33/34/35 were investigated. FMOs have been characterized in humans and several other species including dogs and pigs. P450 and FMO family members have been characterized also in cynomolgus macaques and common marmosets. P450s have industrial applications and have been the focus of attention of many pharmaceutical companies. The techniques used to investigate the roles of P450/FMO enzymes in drug oxidation and clinical treatments have not yet reached maturity and require further development. The findings summarized here provide a foundation for understanding individual pharmacokinetic and toxicological results in dogs and pigs as preclinical models and will help to further support understanding of the molecular mechanisms of human P450/FMO functionality.
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Affiliation(s)
- Yasuhiro Uno
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima-city, Kagoshima 890-0065, Japan
| | - Makiko Shimizu
- Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan
| | - Hiroshi Yamazaki
- Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
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313
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Zheng Y, Xu F, Gan J, Jin H, Lou J. Impact of operating conditions on N 2O accumulation in Nitrate-DAMO system: Kinetics and microbiological analysis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 369:122389. [PMID: 39241602 DOI: 10.1016/j.jenvman.2024.122389] [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: 05/14/2024] [Revised: 08/09/2024] [Accepted: 08/31/2024] [Indexed: 09/09/2024]
Abstract
Nitrate-dependent anaerobic methane oxidation (Nitrate-DAMO) is a novel and sustainable process that removes both nitrogen and methane. Previously, the metabolic pathway of Nitrate-DAMO has been intensively studied with some results. However, the production and consumption of nitrous oxide (N2O) in the Nitrate-DAMO system were widely disregarded. In this study, a Nitrate-DAMO system was used to investigate the effect of operational parameters (C/N ratio, pH, and temperature) on N2O accumulation, and the optimal operating conditions were determined (C/N = 3, pH = 6.5, and temperature = 20 °C). In this study, an enzyme kinetic model was used to fit the nitrate nitrogen degradation and the nitrous oxide production and elimination under different operating conditions. The thermodynamic model of N2O production and elimination in the system also has been constructed. Multiple linear regression analysis found that pH was the most important factor influencing N2O accumulation. The Metagenomics sequencing results showed that alkaline pH promoted the abundance of Nor genes and denitrifying bacteria, which were significantly and positively correlated with N2O emissions. And alkaline pH also promoted the production of Mdo genes related to the N2O-driven AOM reaction, indicating that part of the N2O was consumed by denitrifying bacteria and the other part was consumed by the N2O-driven AOM reaction. These findings reveal the mechanism of N2O production and consumption in DAMO systems and provide a theoretical basis for reducing N2O production and greenhouse gas emissions in actual operation.
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Affiliation(s)
- Yiru Zheng
- School of Environmental Science and Engineering, Zhejiang Gongshang University, No. 149, Jiaogong Road, Hangzhou, 310012, China
| | - Fan Xu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, No. 149, Jiaogong Road, Hangzhou, 310012, China
| | - Jianwen Gan
- Zhejiang Beroot Environmental Protection Technology Co., Ltd., Hangzhou, 310018, China
| | - Hao Jin
- School of Environmental Science and Engineering, Zhejiang Gongshang University, No. 149, Jiaogong Road, Hangzhou, 310012, China
| | - Juqing Lou
- School of Environmental Science and Engineering, Zhejiang Gongshang University, No. 149, Jiaogong Road, Hangzhou, 310012, China.
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314
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Lai W, Zhang J, Sun J, Min T, Bai Y, He J, Cao H, Che Q, Guo J, Su Z. Oxidative stress in alcoholic liver disease, focusing on proteins, nucleic acids, and lipids: A review. Int J Biol Macromol 2024; 278:134809. [PMID: 39154692 DOI: 10.1016/j.ijbiomac.2024.134809] [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: 05/05/2024] [Revised: 08/11/2024] [Accepted: 08/14/2024] [Indexed: 08/20/2024]
Abstract
Oxidative stress is one of the important factors in the development of alcoholic liver disease. The production of reactive oxygen species and other free radicals is an important feature of alcohol metabolism in the liver and an important substance in liver injury. When large amounts of ROS are produced, the homeostasis of the liver REDOX system will be disrupted and liver injury will be caused. Oxidative stress can damage proteins, nucleic acids and lipids, liver dysfunction. In addition, damaging factors produced by oxidative damage to liver tissue can induce the occurrence of inflammation, thereby aggravating the development of ALD. This article reviews the oxidative damage of alcohol on liver proteins, nucleic acids, and lipids, and provides new insights and summaries of the oxidative stress process. We also discussed the relationship between oxidative stress and inflammation in alcoholic liver disease from different perspectives. Finally, the research status of antioxidant therapy in alcoholic liver disease was summarized, hoping to provide better help for learning and developing the understanding of alcoholic liver disease.
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Affiliation(s)
- Weiwen Lai
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiahua Zhang
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiawei Sun
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Tianqi Min
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yan Bai
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - Jincan He
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Qishi Che
- Guangzhou Rainhome Pharm & Tech Co., Ltd, Science City, Guangzhou 510663, China
| | - Jiao Guo
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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315
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Baptista FBO, da Silva AF, Cordeiro LM, de Souza LI, da Silveira TL, Soares MV, Michelotti P, Corte CLD, da Silva RS, Rodrigues OED, Arantes LP, Soares FAA. Biosafety assessment of novel organoselenium zidovudine derivatives in the Caenorhabditis elegans model. Toxicol Appl Pharmacol 2024; 491:117045. [PMID: 39127352 DOI: 10.1016/j.taap.2024.117045] [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: 05/22/2024] [Revised: 07/08/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024]
Abstract
Antiretrovirals have improved considerably since the introduction of 3'-azido-3'-deoxythymidine (zidovudine or AZT), a molecule with also anticancer effects. Subsequently, a variety of other nucleosides have been synthesized. However, these medications are often associated with serious adverse events and the onset or exacerbation of degenerative processes, diseases, and syndromes, affecting mainly the mitochondria. In this study, we used Caenorhabditis elegans to investigate the toxicity potential of AZT and three new organoselenium derivatives with modifications in the 5' position of the sugar ring in place of the 5'-OH group, with the insertion of a neutral, an electron-withdrawing and an electron-donating group attached to the aryl selenol moiety: 5'-seleno-(4-chloro-phenyl)-3-(amino)-thymidine (ASAT-4-Cl), 5'-seleno-(phenyl)-3-(amino)-thymidine (ASAT-Ph), and 5'-seleno-(4-methoxyphenyl)-3-(amino)- thymidine (ASAT-4-OMe). Analyzes included worm survival, behavior parameters, high-resolution respirometry, citrate synthase activity, and ATP levels. Although all compounds negatively affected C. elegans, ASAT-4-Cl and ASAT-Ph showed lower toxicity compared to AZT, especially in mitochondrial viability and ATP production. Therefore, more studies must be carried out on the use of these new compounds as pharmacological interventions.
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Affiliation(s)
- Fabiane Bicca Obetine Baptista
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Aline Franzen da Silva
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Larissa Marafiga Cordeiro
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Larissa Ilha de Souza
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Tássia Limana da Silveira
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Marcell Valandro Soares
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Paula Michelotti
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Cristiane Lenz Dalla Corte
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Rafael Santos da Silva
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Chemistry, Postgraduate Program in Extension and Research in the Field of Organic Chemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Oscar Endrigo Dorneles Rodrigues
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Chemistry, Postgraduate Program in Extension and Research in the Field of Organic Chemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil
| | - Leticia Priscilla Arantes
- State University of Minas Gerais, Department of Biomedical Sciences and Health, Belo Horizonte, Zip code 37900-106 Passos, MG, Brazil
| | - Félix Alexandre Antunes Soares
- Federal University of Santa Maria, Center for Natural and Exact Sciences, Department of Biochemistry and Molecular Biology, Postgraduate Program in Biological Sciences: Toxicological Biochemistry, Camobi, Zip code 97105-900 Santa Maria, RS, Brazil.
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316
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Zhang H, Pan L, Pu Z, Wang X, Zhang J, Wang Y, Chang Q, Laghari F, Zhang R. Lambda-cyhalothrin induces heart injury in chickens by regulating cytochrome P450 enzyme system and inhibiting Nrf2/HO-1 pathway. Poult Sci 2024; 103:104154. [PMID: 39137500 PMCID: PMC11372963 DOI: 10.1016/j.psj.2024.104154] [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: 07/29/2024] [Accepted: 07/29/2024] [Indexed: 08/15/2024] Open
Abstract
Lambda-cyhalothrin (LCT) is a common pyrethroid insecticide widely used for ectoparasite control and hygiene pest prevention in poultry and this study aimed to investigate the mechanisms of LCT-induced cardiac injury in chickens. Low, medium, and high-dose LCT exposure models in chickens were established and hematoxylin and eosin (H&E) staining, dihydroethidium (DHE) staining, TUNEL staining, immunofluorescence, biochemical analysis, and gene expression analysis were used to study the effects of LCT exposure on the chicken heart. The results showed that LCT exposure increased the serum levels of creatine kinase (CK) and lactate dehydrogenase (LDH), led to muscle fiber breakage and inflammatory cell infiltration and caused cardiac tissue damage. The DHE staining and biochemical analysis revealed that LCT exposure resulted in the excessive accumulation of ROS, decreased activities/levels of catalase (CAT), total superoxide dismutase (T-SOD), and glutathione (GSH), and increased levels of the oxidative damage marker malondialdehyde (MDA). The TUNEL staining indicated that LCT exposure increased apoptosis possibly through the elevated expression of pro-apoptotic genes in the mitochondrial pathway, the reduced expression of anti-apoptotic genes, the upregulation of pro-inflammatory factors and the downregulation of anti-inflammatory factors. Here, LCT exposure significantly inhibited the expression of genes in the Nrf2/HO-1 pathway and activated the expression of genes in the CYP450 enzyme system. Compared to the low-dose group, the high-dose LCT exposure group showed lower levels of apoptosis and inflammation, possibly related to the low oxidative stress levels mediated by the decreased expression of the CYP450 enzyme system. In conclusion, LCT exposure induces oxidative stress, apoptosis, and inflammation in chicken hearts, which may be associated with the inhibition of the Nrf2/HO-1 pathway and activation of the CYP450 enzyme system. This study provides a theoretical basis for the safer use of insecticides in poultry production.
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Affiliation(s)
- Haoran Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China
| | - Liying Pan
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China
| | - Zhaohong Pu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China
| | - Xiaoxu Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China
| | - Jiaqi Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China
| | - Ye Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China
| | - Qingqing Chang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China
| | - Farooque Laghari
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China
| | - Runxiang Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, PR China; Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, Heilongjiang 150030, PR China.
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317
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Su L, Li G, Chow BKC, Cardoso JCR. Neuropeptides and receptors in the cephalochordate: A crucial model for understanding the origin and evolution of vertebrate neuropeptide systems. Mol Cell Endocrinol 2024; 592:112324. [PMID: 38944371 DOI: 10.1016/j.mce.2024.112324] [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: 03/15/2024] [Revised: 05/26/2024] [Accepted: 06/25/2024] [Indexed: 07/01/2024]
Abstract
Genomes and transcriptomes from diverse organisms are providing a wealth of data to explore the evolution and origin of neuropeptides and their receptors in metazoans. While most neuropeptide-receptor systems have been extensively studied in vertebrates, there is still a considerable lack of understanding regarding their functions in invertebrates, an extraordinarily diverse group that account for the majority of animal species on Earth. Cephalochordates, commonly known as amphioxus or lancelets, serve as the evolutionary proxy of the chordate ancestor. Their key evolutionary position, bridging the invertebrate to vertebrate transition, has been explored to uncover the origin, evolution, and function of vertebrate neuropeptide systems. Amphioxus genomes exhibit a high degree of sequence and structural conservation with vertebrates, and sequence and functional homologues of several vertebrate neuropeptide families are present in cephalochordates. This review aims to provide a comprehensively overview of the recent findings on neuropeptides and their receptors in cephalochordates, highlighting their significance as a model for understanding the complex evolution of neuropeptide signaling in vertebrates.
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Affiliation(s)
- Liuru Su
- School of Biological Sciences, The University of Hong Kong, Hong Kong, China; State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Guang Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China.
| | - Billy K C Chow
- School of Biological Sciences, The University of Hong Kong, Hong Kong, China.
| | - João C R Cardoso
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, 8005-139, Faro, Portugal.
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318
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Zhang SY, Zhang LY, Wen R, Yang N, Zhang TN. Histone deacetylases and their inhibitors in inflammatory diseases. Biomed Pharmacother 2024; 179:117295. [PMID: 39146765 DOI: 10.1016/j.biopha.2024.117295] [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: 06/19/2024] [Revised: 08/03/2024] [Accepted: 08/09/2024] [Indexed: 08/17/2024] Open
Abstract
Despite considerable research efforts, inflammatory diseases remain a heavy burden on human health, causing significant economic losses annually. Histone deacetylases (HDACs) play a significant role in regulating inflammation (via histone and non-histone protein deacetylation) and chromatin structure and gene expression regulation. Herein, we present a detailed description of the different HDACs and their functions and analyze the role of HDACs in inflammatory diseases, including pro-inflammatory cytokine production reduction, immune cell function modulation, and anti-inflammatory cell activity enhancement. Although HDAC inhibitors have shown broad inflammatory disease treatment potentials, their clinical applicability remains limited because of their non-specific effects, adverse effects, and drug resistance. With further research and insight, these inhibitors are expected to become important tools for the treatment of a wide range of inflammatory diseases. This review aims to explore the mechanisms and application prospects of HDACs and their inhibitors in multiple inflammatory diseases.
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Affiliation(s)
- Sen-Yu Zhang
- Department of Pediatrics, PICU, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Li-Ying Zhang
- Department of Pediatrics, PICU, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Ri Wen
- Department of Pediatrics, PICU, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Ni Yang
- Department of Pediatrics, PICU, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Tie-Ning Zhang
- Department of Pediatrics, PICU, Shengjing Hospital of China Medical University, Shenyang 110004, China.
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319
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Yang B, Gu M, Hong C, Zou XY, Zhang JQ, Yuan Y, Qiu CY, Lu MP, Cheng L. Integrated machine learning and bioinformatic analysis of mitochondrial-related signature in chronic rhinosinusitis with nasal polyps. World Allergy Organ J 2024; 17:100964. [PMID: 39328210 PMCID: PMC11426132 DOI: 10.1016/j.waojou.2024.100964] [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: 01/20/2024] [Revised: 07/31/2024] [Accepted: 08/11/2024] [Indexed: 09/28/2024] Open
Abstract
Background Chronic rhinosinusitis with nasal polyps (CRSwNP) is a prevalent inflammatory disorder affecting the upper respiratory tract. Recent studies have indicated an association between CRSwNP and mitochondrial metabolic disorder characterized by impaired metabolic pathways; however, the precise mechanisms remain unclear. This study aims to investigate the mitochondrial-related signature in individuals diagnosed with CRSwNP. Methods Through the integration of differentially expressed genes (DEGs) with the mitochondrial gene set, differentially expressed mitochondrial-related genes (DEMRGs) were identified. Subsequently, the hub DEMRGs were selected using 4 integrated machine learning algorithms. Immune and mitochondrial characteristics were estimated based on CIBERSORT and ssGSEA algorithms. Bioinformatic findings were confirmed through RT-qPCR, immunohistochemistry, and ELISA for nasal tissues, as well as Western blotting analysis for human nasal epithelial cells (hNECs). The relationship between hub DEMRGs and disease severity was assessed using Spearman correlation analysis. Results A total of 24 DEMRGs were screened, most of which exhibited lower expression levels in CRSwNP samples. Five hub DEMRGs (ALDH1L1, BCKDHB, CBR3, HMGCS2, and OXR1) were consistently downregulated in both the discovery and validation cohorts. The hub genes showed a high diagnostic performance and were positively correlated with the infiltration of M2 macrophages and resting mast cells. Experimental results confirmed that the 5 genes were downregulated at both the mRNA and protein levels within nasal polyp tissues. Finally, a significant and inverse relationship was identified between the expression levels of these genes and both the Lund-Mackay and Lund-Kennedy scores. Conclusion Our findings systematically unraveled 5 hub markers correlated with mitochondrial metabolism and immune cell infiltration in CRSwNP, suggesting their potential to be based to design diagnostic and therapeutic strategies for the disease.
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Affiliation(s)
- Bo Yang
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Min Gu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Chen Hong
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xin-Yuan Zou
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Jia-Qi Zhang
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Ye Yuan
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Chang-Yu Qiu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
- International Centre for Allergy Research, Nanjing Medical University, Nanjing, China
| | - Mei-Ping Lu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Lei Cheng
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
- International Centre for Allergy Research, Nanjing Medical University, Nanjing, China
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Dexheimer TS, Coussens NP, Silvers T, Jones E, Chen L, Fang J, Morris J, Moscow JA, Doroshow JH, Teicher BA. Combination screen in multi-cell type tumor spheroids reveals interaction between aryl hydrocarbon receptor antagonists and E1 ubiquitin-activating enzyme inhibitor: Aryl-hydrocarbon receptor antagonist drug combinations. SLAS DISCOVERY : ADVANCING LIFE SCIENCES R & D 2024:100186. [PMID: 39362362 DOI: 10.1016/j.slasd.2024.100186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 09/25/2024] [Accepted: 09/30/2024] [Indexed: 10/05/2024]
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that regulates genes of drug transporters and metabolic enzymes to detoxify small molecule xenobiotics. It has a complex role in cancer biology, influencing both the progression and suppression of tumors by modulating malignant properties of tumor cells and anti-tumor immunity, depending on the specific tumor type and developmental stage. This has led to the discovery and development of selective AhR modulators, including BAY 2416964 which is currently in clinical trials. To identify small molecule anticancer agents that might be combined with AhR antagonists for cancer therapy, a high-throughput combination screen was performed using multi-cell type tumor spheroids grown from malignant cells, endothelial cells, and mesenchymal stem cells. The AhR selective antagonists BAY 2416964, GNF351, and CH-223191 were tested individually and in combination with twenty-five small molecule anticancer agents. As single agents, BAY 2416964 and CH-223191 showed minimal activity, whereas GNF351 reduced the viability of some spheroid models at concentrations greater than 1 µM. The activity of most combinations aligned well with the single agent without apparent contributions from the AhR antagonist. All three AhR antagonists sensitized tumor spheroids to TAK-243, an E1 ubiquitin-activating enzyme inhibitor. These combinations were active in spheroids containing bladder, breast, ovary, kidney, pancreas, colon, and lung tumor cell lines. The AhR antagonists also potentiated pevonedistat, a selective inhibitor of the NEDD8-activating enzyme E1 regulatory subunit, in several tumor spheroid models. In contrast, the AhR antagonists did not enhance the cytotoxicity of the proteasome inhibitor bortezomib.
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Affiliation(s)
- Thomas S Dexheimer
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate.
| | - Nathan P Coussens
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate
| | - Thomas Silvers
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate
| | - Eric Jones
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate
| | - Li Chen
- Molecular Characterization Laboratory, Clinical Research Directorate, Frederick National Laboratory for Cancer Research, Frederick, Maryland, 21702
| | - Jianwen Fang
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 20892
| | - Joel Morris
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 20892
| | - Jeffrey A Moscow
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 20892
| | - James H Doroshow
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 20892
| | - Beverly A Teicher
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 20892
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321
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Mishima H, Ando S, Kuzuhara H, Yamamura A, Kondo R, Suzuki Y, Imaizumi Y, Yamamura H. Melatonin inhibits voltage-gated potassium K V4.2 channels and negatively regulates melatonin secretion in rat pineal glands. Am J Physiol Cell Physiol 2024; 327:C1023-C1034. [PMID: 39159388 DOI: 10.1152/ajpcell.00664.2023] [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: 12/04/2023] [Revised: 07/25/2024] [Accepted: 08/13/2024] [Indexed: 08/21/2024]
Abstract
Melatonin is synthesized in and secreted from the pineal glands and regulates circadian rhythms. Although melatonin has been reported to modulate the activity of ion channels in several tissues, its effects on pineal ion channels remain unclear. In the present study, the effects of melatonin on voltage-gated K+ (KV) channels, which play a role in regulating the resting membrane potential, were examined in rat pinealocytes. The application of melatonin reduced pineal KV currents in a concentration-dependent manner (IC50 = 309 µM). An expression analysis revealed that KV4.2 channels were highly expressed in rat pineal glands. Melatonin-sensitive currents were abolished by the small interfering RNA knockdown of KV4.2 channels in rat pinealocytes. In human embryonic kidney 293 (HEK293) cells expressing KV4.2 channels, melatonin decreased outward currents (IC50 = 479 µM). Inhibitory effects were mediated by a shift in the voltage dependence of steady-state inactivation in a hyperpolarizing direction. This inhibition was observed even in the presence of 100 nM luzindole, an antagonist of melatonin receptors. Melatonin also blocked the activity of KV4.3, KV1.1, and KV1.5 channels in reconstituted HEK293 cells. The application of 1 mM melatonin caused membrane depolarization in rat pinealocytes. Furthermore, KV4.2 channel inhibition by 5 mM 4-aminopyridine attenuated melatonin secretion induced by 1 µM noradrenaline in rat pineal glands. These results strongly suggest that melatonin directly inhibited KV4.2 channels and caused membrane depolarization in pinealocytes, resulting in a decrease in melatonin secretion through parasympathetic signaling pathway. This mechanism may function as a negative-feedback mechanism of melatonin secretion in pineal glands. NEW & NOTEWORTHY Melatonin is a hormone that is synthesized in and secreted from the pineal glands, which regulates circadian rhythms. However, the effects of melatonin on pineal ion channels remain unclear. The present study demonstrated that melatonin directly inhibited voltage-gated potassium KV4.2 channels, which are highly expressed in rat pinealocytes, and induced membrane depolarization, resulting in a decrease in melatonin secretion. This mechanism may function as a negative-feedback mechanism of melatonin secretion in pineal glands.
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Affiliation(s)
- Hiroki Mishima
- Department of Molecular and Cellular Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Shunsuke Ando
- Department of Molecular and Cellular Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Hibiki Kuzuhara
- Department of Molecular and Cellular Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Aya Yamamura
- Department of Physiology, Aichi Medical University, Nagakute, Japan
| | - Rubii Kondo
- Department of Molecular and Cellular Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Yoshiaki Suzuki
- Department of Molecular and Cellular Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Yuji Imaizumi
- Department of Molecular and Cellular Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Hisao Yamamura
- Department of Molecular and Cellular Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
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322
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Islam MT, Ferdous J, Al Hasan MS, Hashem A, Hasan Bappi M, Ansari SA, Islam MA, Saifuzzaman M. Phytol exerts sedative-like effects and modulates the diazepam and flumazenil's action, possibly through the GABA A receptor interaction pathway. Neurosci Lett 2024; 842:138007. [PMID: 39357640 DOI: 10.1016/j.neulet.2024.138007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2024] [Revised: 09/19/2024] [Accepted: 09/29/2024] [Indexed: 10/04/2024]
Abstract
This study aimed at the evaluation of the sedative effect of phytol (PHY) with possible molecular mechanisms through in vivo and in silico studies. For this, adult male mice were randomly divided into six individual groups, namely control (vehicle), two standards (DZP: diazepam at 2 m/kg, FLU: flumazenil at 0.1 mg/kg), three test groups (PHY at 25, 50, and 75 mg/kg), and three combined groups with the DZP-2 and/or FLU-0.1 with PHY-75 mg/kg. After thirty minutes, each animal was treated with thiopental sodium (TS) at 40 mg/kg to produce sedation and observed for latency and duration of sleep up to 4 h. In silico studies were performed with the 6X3X protein of the GABAA receptor α1 and β2 subunits. The results demonstrate that PHY dose-dependently enhanced sleep duration in animals. However, it produced an insignificant sleep duration compared to the control and standard groups. It also significantly (p < 0.05) decreased the latency and increased the duration of sleep with DZP-2, while reducing these parameters with FLU-0.1. In in silico studies, DZP and FLU exhibited binding affinities with 6X3X by -6.8 and -6.9 kcal/mol, respectively, while PHY exhibited -6.9 kcal/mol. Taken together, PHY may exert a sedative-like effect in TS-induced sleeping mice and modulate the effects of DZP and FLU, possibly through interacting with the 6X3X protein of the GABAA receptor. PHY may be one of the good candidates for the management of sleep disturbances, such as insomnia.
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Affiliation(s)
- Md Torequl Islam
- Pharmacy Discipline, Khulna University, Khulna 9208, Bangladesh; Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh.
| | - Jannatul Ferdous
- Bioinformatics and Drug Innovation Laboratory, BioLuster Research Center Ltd., Gopalganj 8100, Dhaka, Bangladesh; Department of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh; Microbial Biotechnology Division, National Institute of Biotechnology, Ganakbari, Ashulia, Savar, Dhaka-1349, Bangladesh
| | - Md Sakib Al Hasan
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh; Bioinformatics and Drug Innovation Laboratory, BioLuster Research Center Ltd., Gopalganj 8100, Dhaka, Bangladesh
| | - Abu Hashem
- Microbial Biotechnology Division, National Institute of Biotechnology, Ganakbari, Ashulia, Savar, Dhaka-1349, Bangladesh
| | - Mehedi Hasan Bappi
- School of Pharmacy, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Siddique Akber Ansari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O Box 2457, Riyadh 11451, Saudi Arabia
| | - Md Amirul Islam
- Pharmacy Discipline, Khulna University, Khulna 9208, Bangladesh; Department of Pharmacy, East West University, Dhaka 1212, Bangladesh
| | - Md Saifuzzaman
- Pharmacy Discipline, Khulna University, Khulna 9208, Bangladesh
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323
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Han L, Cui Y, Pan Y, Chen R, Jiao Z. External evaluation of tacrolimus population pharmacokinetic models in adult lung transplant patients: How to enhance the predictive ability of the model? Int Immunopharmacol 2024; 143:113225. [PMID: 39353393 DOI: 10.1016/j.intimp.2024.113225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 09/06/2024] [Accepted: 09/18/2024] [Indexed: 10/04/2024]
Abstract
PURPOSE Tacrolimus is the cornerstone of current immunosuppressive strategies after lung transplantation. However, its narrow therapeutic range and considerable pharmacokinetic variability pose challenges for individualized treatment. Several tacrolimus population pharmacokinetic (popPK) models have been developed for precision dosing in adult lung transplant patients. However, their applicability across different clinical settings remains uncertain. The aim of this study was to evaluate the external predictability of these models and identify influential factors. METHODS Published models were systematically retrieved and assessed based on an external dataset of 39 patients (1240 tacrolimus trough concentrations) using three approaches: (1) prediction-based diagnosis using dosing records and patient characteristics; (2) simulation-based diagnosis, with prediction- and variability-corrected visual predictive checks (pvcVPC) and normalized prediction distribution error tests (NPDE); and (3) Bayesian forecasting using one to four observations for posterior predictions. We also investigated the impact of model structure and covariates on predictability. RESULTS The predictive performance of six published models was externally evaluated, but none demonstrated satisfactory accuracy in prediction- and simulation-based diagnosis. Bayesian forecasting yielded satisfactory results with only one prior observation and optimal predictive performance with 2-3 priors for all included models. The structural model parameterized on plasma tacrolimus concentration outperformed others. Significant correlations were observed between prediction-error and daily tacrolimus dose, postoperative day, and voriconazole co-administration. CONCLUSIONS The overall predictive performance of all published models was unsatisfactory, making direct extrapolation inappropriate. However, Bayesian forecasting significantly improves predictive performance. Utilizing plasma tacrolimus concentration for parameter estimation can improve the predictive ability of tacrolimus popPK models.
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Affiliation(s)
- Lu Han
- Department of Pharmacy, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Yifan Cui
- Department of Pharmacy, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Yan Pan
- Department of Pharmacy, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Rui Chen
- Department of Pharmacy, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Zheng Jiao
- Department of Pharmacy, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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324
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Chen J, Jiang Y, Hou M, Liu C, Liu E, Zong Y, Wang X, Meng Z, Gu M, Su Y, Wang H, Fu J. Nuclear translocation of plasma membrane protein ADCY7 potentiates T cell-mediated antitumour immunity in HCC. Gut 2024:gutjnl-2024-332902. [PMID: 39349007 DOI: 10.1136/gutjnl-2024-332902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 08/31/2024] [Indexed: 10/02/2024]
Abstract
BACKGROUND The potency of T cell-mediated responses is a determinant of immunotherapy effectiveness in treating malignancies; however, the clinical efficacy of T-cell therapies has been limited in hepatocellular carcinoma (HCC) owing to the extensive immunosuppressive microenvironment. OBJECTIVE Here, we aimed to investigate the key genes contributing to immune escape in HCC and raise a new therapeutic strategy for remoulding the HCC microenvironment. DESIGN The genome-wide in vivo clustered regularly interspaced short palindromic repeats (CRISPR) screen library was conducted to identify the key genes associated with immune tolerance. Single-cell RNA-seq (scRNA-seq), flow cytometry, HCC mouse models, chromatin immunoprecipitation and coimmunoprecipitation were used to explore the function and mechanism of adenylate cyclase 7 (ADCY7) in HCC immune surveillance. RESULTS Here, a genome-wide in vivo CRISPR screen identified a novel immune modulator-ADCY7. The transmembrane protein ADCY7 undergoes subcellular translocation via caveolae-mediated endocytosis and then translocates to the nucleus with the help of leucine-rich repeat-containing protein 59 (LRRC59) and karyopherin subunit beta 1 (KPNB1). In the nucleus, it functions as a transcription cofactor of CCAAT/enhancer binding protein alpha (CEBPA) to induce CCL5 transcription, thereby increasing CD8+ T cell infiltration to restrain HCC progression. Furthermore, ADCY7 can be secreted as exosomes and enter neighbouring tumour cells to promote CCL5 induction. Exosomes with high ADCY7 levels promote intratumoural infiltration of CD8+ T cells and suppress HCC tumour growth. CONCLUSION We delineate the unconventional function and subcellular location of ADCY7, highlighting its pivotal role in T cell-mediated immunity in HCC and its potential as a promising treatment target.
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Affiliation(s)
- Jianan Chen
- International Cooperation Laboratory on Signal Transduction, National Center for Liver Cancer, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
| | - Youhai Jiang
- Cancer Research Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology, Anhui, China
| | - Minghui Hou
- Research Center for Organoids, Department of Translational Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chunliang Liu
- International Cooperation Laboratory on Signal Transduction, National Center for Liver Cancer, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
| | - Erdong Liu
- Institute of Metabolism & Integrative Biology, Fudan University, Shanghai, China
| | - Yali Zong
- Institute of Metabolism & Integrative Biology, Fudan University, Shanghai, China
| | - Xiang Wang
- Second Department of Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
| | - Zhengyuan Meng
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mingye Gu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Su
- International Cooperation Laboratory on Signal Transduction, National Center for Liver Cancer, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
| | - Hongyang Wang
- International Cooperation Laboratory on Signal Transduction, National Center for Liver Cancer, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
| | - Jing Fu
- International Cooperation Laboratory on Signal Transduction, National Center for Liver Cancer, Ministry of Education Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
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325
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Domin H, Burnat G. mGlu4R, mGlu7R, and mGlu8R allosteric modulation for treating acute and chronic neurodegenerative disorders. Pharmacol Rep 2024:10.1007/s43440-024-00657-7. [PMID: 39348087 DOI: 10.1007/s43440-024-00657-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 09/12/2024] [Accepted: 09/16/2024] [Indexed: 10/01/2024]
Abstract
Neuroprotection, defined as safeguarding neurons from damage and death by inhibiting diverse pathological mechanisms, continues to be a promising approach for managing a range of central nervous system (CNS) disorders, including acute conditions such as ischemic stroke and traumatic brain injury (TBI) and chronic neurodegenerative diseases like Parkinson's disease (PD), Alzheimer's disease (AD), and multiple sclerosis (MS). These pathophysiological conditions involve excessive glutamatergic (Glu) transmission activity, which can lead to excitotoxicity. Inhibiting this excessive Glu transmission has been proposed as a potential therapeutic strategy for treating the CNS disorders mentioned. In particular, ligands of G protein-coupled receptors (GPCRs), including metabotropic glutamatergic receptors (mGluRs), have been recognized as promising options for inhibiting excessive Glu transmission. This review discusses the complex interactions of mGlu receptors with their subtypes, including the formation of homo- and heterodimers, which may vary in function and pharmacology depending on their protomer composition. Understanding these intricate details of mGlu receptor structure and function enhances researchers' ability to develop targeted pharmacological interventions, potentially offering new therapeutic avenues for neurological and psychiatric disorders. This review also summarizes the current knowledge of the neuroprotective potential of ligands targeting group III mGluRs in preclinical cellular (in vitro) and animal (in vivo) models of ischemic stroke, TBI, PD, AD, and MS. In recent years, experiments have shown that compounds, especially those activating mGlu4 or mGlu7 receptors, exhibit protective effects in experimental ischemia models. The discovery of allosteric ligands for specific mGluR subtypes has led to reports suggesting that group III mGluRs may be promising targets for neuroprotective therapy in PD (mGlu4R), TBI (mGlu7R), and MS (mGlu8R).
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Affiliation(s)
- Helena Domin
- Maj Institute of Pharmacology, Department of Neurobiology, Polish Academy of Sciences, Smętna 12, Kraków, 31-343, Poland.
| | - Grzegorz Burnat
- Maj Institute of Pharmacology, Department of Neurobiology, Polish Academy of Sciences, Smętna 12, Kraków, 31-343, Poland
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326
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Bauman AA, Sarathy JP, Kaya F, Massoudi LM, Scherman MS, Hastings C, Liu J, Xie M, Brooks EJ, Ramey ME, Jones IL, Benedict ND, Maclaughlin MR, Miller-Dawson JA, Waidyarachchi SL, Butler MM, Bowlin TL, Zimmerman MD, Lenaerts AJ, Meibohm B, Gonzalez-Juarrero M, Lyons MA, Dartois V, Lee RE, Robertson GT. Spectinamide MBX-4888A exhibits favorable lesion and tissue distribution and promotes treatment shortening in advanced murine models of tuberculosis. Antimicrob Agents Chemother 2024:e0071624. [PMID: 39345140 DOI: 10.1128/aac.00716-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 09/08/2024] [Indexed: 10/01/2024] Open
Abstract
The spectinamides are novel, narrow-spectrum semisynthetic analogs of spectinomycin, modified to avoid intrinsic efflux by Mycobacterium tuberculosis. Spectinamides, including lead MBX-4888A (Lee-1810), exhibit promising therapeutic profiles in mice, as single drugs and as partner agents with other anti-tuberculosis antibiotics including rifampin and/or pyrazinamide. Here, we show that MBX-4888A, given by injection with the front-line standard of care regimen, is treatment shortening in multiple murine tuberculosis infection models. The positive treatment responses to MBX-4888A combination therapy in multiple mouse models, including mice exhibiting advanced pulmonary disease, can be attributed to favorable distribution in tissues and lesions, retention in caseum, along with favorable effects with rifampin and pyrazinamide under conditions achieved in necrotic lesions. This study also provides an additional data point regarding the safety and tolerability of spectinamide MBX-4888A in long-term murine efficacy studies.
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Affiliation(s)
- Allison A Bauman
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Jansy P Sarathy
- Hackensack Meridian School of Medicine, Center for Discovery and Innovation, Nutley, New Jersey, USA
| | - Firat Kaya
- Hackensack Meridian School of Medicine, Center for Discovery and Innovation, Nutley, New Jersey, USA
| | - Lisa M Massoudi
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Michael S Scherman
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Courtney Hastings
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Jiuyu Liu
- Department of Chemical Biology & Therapeutics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Min Xie
- Hackensack Meridian School of Medicine, Center for Discovery and Innovation, Nutley, New Jersey, USA
| | - Elizabeth J Brooks
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Michelle E Ramey
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Isabelle L Jones
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Noalani D Benedict
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Madelyn R Maclaughlin
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Jake A Miller-Dawson
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | | | | | | | - Matthew D Zimmerman
- Hackensack Meridian School of Medicine, Center for Discovery and Innovation, Nutley, New Jersey, USA
| | - Anne J Lenaerts
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Bernd Meibohm
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Sciences Center, Memphis, Tennessee, USA
| | | | - Michael A Lyons
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
| | - Veronique Dartois
- Hackensack Meridian School of Medicine, Center for Discovery and Innovation, Nutley, New Jersey, USA
| | - Richard E Lee
- Department of Chemical Biology & Therapeutics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Gregory T Robertson
- Department of Microbiology, Immunology and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, Colorado, USA
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327
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Liu C, Wang Q, Li L, Gao F, Zhang Y, Zhu Y. The peptide-based bispecific CAR T cells target EGFR and tumor stroma for effective cancer therapy. Int J Pharm 2024; 663:124558. [PMID: 39111352 DOI: 10.1016/j.ijpharm.2024.124558] [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: 05/20/2024] [Revised: 07/23/2024] [Accepted: 08/04/2024] [Indexed: 08/12/2024]
Abstract
BACKGROUND AND PURPOSE The efficacy of chimeric antigen receptor (CAR)-T cell for solid tumors is limited partially because of the lack of tumor-specific antigens and off-target effects. Low molecular weight peptides allowed CAR T cell to display several antigen receptors to reduce off-target effects. Here, we develop a peptide-based bispecific CAR for EGFR and tumor stroma, which are expressed in a variety of tumor types. EXPERIMENTAL APPROACH AND KEY RESULTS The peptide-based CAR T cells show excellent proliferation, cytotoxicity activity and are only activated by tumor cells overexpressing EGFR instead of normal cells with low EGFR expressing. In mouse xenograft models, the peptide bispecific CAR T cells can be delivered into the inner of tumor masses and thus are effective in inhibiting tumor growth. Meanwhile, they show strong expansion capacity and the property of maintaining long-term function in vivo. During treatment, no off-tumor toxicity is observed on healthy organs expressing lower levels of EGFR. CONCLUSIONS & IMPLICATIONS Our findings demonstrate that peptide-based bispecific CAR T holds great potential in solid tumor therapy due to an excellent targeting ability towards tumors and tumor microenvironment.
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Affiliation(s)
- Cuijuan Liu
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100071, China
| | - Qianqian Wang
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Lin Li
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Fan Gao
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yuanyue Zhang
- Department of Oncology, Suzhou BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Suzhou, China
| | - Yimin Zhu
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
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Sharma VK, Barde PB, Kathrotia R, Sharma G, Chitturi V, Parmar N, Dhruva G, Kavathia G, Rajendran R. Effects of an 8-week intervention of anulom vilom pranayama combined with heartfulness meditation on psychological stress, autonomic function, inflammatory biomarkers, and oxidative stress in healthcare workers during COVID-19 pandemic: a randomized controlled trial. J Basic Clin Physiol Pharmacol 2024:jbcpp-2024-0001. [PMID: 39331608 DOI: 10.1515/jbcpp-2024-0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 08/29/2024] [Indexed: 09/29/2024]
Abstract
OBJECTIVES Health care workers were exposed to huge stress during COVID-19 pandemic affecting their physical and mental health. Practice of anulom vilom pranayama and heartfulness meditation (AVPHFN) can improve mental and physical health and counter stress. The present study explored the effect of 8-week AVPHFN intervention on autonomic functions, emotional stress, oxidative stress, and inflammation markers in the nurse group of health-care givers. METHODS This was a randomized controlled trial where 50 nurses underwent AVPHFN and 50 participated as controls. At baseline and after 8 week intervention of AVPHFN anthropometric parameters, cardiovascular parameters, autonomic function including time and frequency domain parameters, biochemical parameters, and psychological stress using the questionnaire were assessed. RESULTS Forty nurses in AVPHFN group and 46 in control group completed the study. AVPHFN intervention resulted in a significant reduction in cardiovascular parameters heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure and rate pressure product (p<0.001, p<0.001, p<0.001, p<0.001, and p<0.001, respectively), perceived stress score and depression, anxiety, and stress scale psychological variables of depression, and stress compared to the control group. Total power, ratio of low frequency to high frequency and change in successive normal sinus (NN) intervals exceeds 50 ms (p<0.01, p=0.05, and p<0.01 respectively) suggesting parasympathodominance due to higher vagal efferent activity. Serum cortisol, high-sensitivity C-reactive protein (hs-CRP), tumor necrosis factor-alpha, interleukin (IL)-1, IL-6 and telomerase significantly decreased in AVPHFN group post intervention. CONCLUSIONS Eighty-week intervention of AVPHFN improved psychophysiological, autonomic and biochemistry profile of nurse group of health-care workers. AVPHFN module may be beneficial for curtailing stress and improving well-being.
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Affiliation(s)
- Vivek Kumar Sharma
- Department of Physiology, All India Institute of Medical Sciences, Rajkot, Gujarat, India
| | - Pradip B Barde
- Department of Physiology, All India Institute of Medical Sciences, Rajkot, Gujarat, India
| | - Rajesh Kathrotia
- Department of Physiology, All India Institute of Medical Sciences, Rajkot, Gujarat, India
| | - Gaurav Sharma
- Department of Physiology, All India Institute of Medical Sciences, Rajkot, Gujarat, India
| | - Vinay Chitturi
- Department of Physiology, All India Institute of Medical Sciences, Rajkot, Gujarat, India
| | - Naresh Parmar
- Department of Physiology, All India Institute of Medical Sciences, Rajkot, Gujarat, India
| | - Gauravi Dhruva
- Department of Pathology, PDU Medical College, Rajkot, Gujarat, India
| | | | - Rajathi Rajendran
- Department of Physiology, All India Institute of Medical Sciences, Bathinda, Punjab, India
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Larauche M, Mulak A, Ha C, Million M, Arnett S, Germano P, Pearson JP, Currie MG, Taché Y. FAAH inhibitor URB597 shows anti-hyperalgesic action and increases brain and intestinal tissues fatty acid amides in a model of CRF 1 agonist mediated visceral hypersensitivity in male rats. Neurogastroenterol Motil 2024:e14927. [PMID: 39344695 DOI: 10.1111/nmo.14927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 08/05/2024] [Accepted: 09/13/2024] [Indexed: 10/01/2024]
Abstract
BACKGROUND AND AIMS The endocannabinoid (eCB) system includes ligands (anandamide and 2-arachidonoyl glycerol, 2-AG), receptors and catabolizing enzymes (fatty acid amide hydrolase, FAAH and monoacylglycerol lipase) expressed in both the brain and gut. We investigated whether the FAAH inhibitor, URB597, influenced visceral pain to colorectal distension (CRD) in an acute stress-related model of visceral hypersensitivity induced by the selective corticotropin-releasing factor receptor subtype 1 (CRF1) agonist, cortagine. METHODS Male Sprague-Dawley rats were injected subcutaneously (SC) with URB597 (3 mg/kg) or vehicle and 2 h later, intraperitoneally with cortagine (10 μg/kg) or vehicle. The visceromotor responses (VMR) were assessed to a first CRD (baseline) before injections, and to a second CRD 15 min after the last treatment. Brain, jejunum, and proximal colon were collected from treated and naïve rats for levels quantification of three fatty acid amides (FAAs) [anandamide (arachidonyl-ethanolamide, AEA), oleoyl-ethanolamide (OEA) and palmitoyl-ethanolamide (PEA)], and 2-AG. In separate animals, defecation/diarrhea were monitored after URB597 and cortagine. KEY RESULTS URB597 inhibited cortagine-induced increased VMR at 40 mmHg (89.0 ± 14.8% vs. 132.5 ± 15.6% for vehicle SC, p < 0.05) and 60 mmHg (107.5 ± 16.1% vs. 176.9 ± 24.4% for vehicle SC, p < 0.001) while not influencing basal VMR. In URB597 plus cortagine group, FAAs levels increased in the brain and intestinal tissue while 2-AG did not change. URB597 did not modify cortagine-induced defecation/diarrhea versus vehicle. CONCLUSIONS AND INFERENCES URB597 shows efficacy to elevate brain and intestinal FAAs and to counteract the colonic hypersensitivity induced by peripheral activation of CRF1 signaling supporting a potential strategy of FAAH inhibitors to alleviate stress-related visceral hypersensitivity.
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Affiliation(s)
- Muriel Larauche
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | - Agata Mulak
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | - Chrysanthy Ha
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | - Mulugeta Million
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | | | | | | | | | - Yvette Taché
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
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Wu L, Ning P, Liang Y, Wang T, Chen L, Lu D, Tang H. Methyltransferase METTL3 regulates neuropathic pain through m6A methylation modification of SOCS1. Neuropharmacology 2024; 261:110176. [PMID: 39357736 DOI: 10.1016/j.neuropharm.2024.110176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 09/16/2024] [Accepted: 09/28/2024] [Indexed: 10/04/2024]
Abstract
The mechanisms of neuropathic pain (NP) are considered multifactorial. Alterations in the suppressor of cytokine signaling 1 (SOCS1) play a critical role in neural damage and inflammation. Epigenetic RNA modifications, specifically N6-methyladenosine (m6A) methylation, have increasingly been observed to impact the nervous system. Nevertheless, there is a scarcity of studies investigating the connection between m6A methylation and SOCS1 in the molecular mechanisms of NP. This study investigates the roles and potential mechanisms of the m6A methyltransferase like 3 (METTL3) and SOCS1 in female rats with spinal nerve ligation (SNL)-induced NP. It was found that in NP, both METTL3 and overall m6A levels were downregulated, leading to the activation of pro-inflammatory cytokines, such as interleukin-1β, interleukin 6, and tumor necrosis factor-α. Notably, The SOCS1 mRNA is significantly enriched with m6A methylation modifications, with the most prevalent m6A methyltransferase METTL3 stabilizing the downregulation of SOCS1 by targeting m6A methylation modifications at positions 151, 164, and 966.Exogenous supplementation of METTL3 improved NP-related neuroinflammation and behavioral dysfunctions, but these effects could be reversed by the absence of SOCS1. Additionally, the depletion of endogenous SOCS1 promoted NP progression by inducing the toll-like receptor 4 (TLR4) signaling pathway. The dysregulation of METTL3 and the resulting m6A modification of SOCS1 form a crucial epigenetic regulatory loop that promotes the progression of NP. Targeting the METTL3/SOCS1 axis might offer new insights into potential therapeutic strategies for NP.
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Affiliation(s)
- Liping Wu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, China; The First Clinical College of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Peng Ning
- The First Clinical College of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Yingye Liang
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Tianyi Wang
- The First Clinical College of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Lingnv Chen
- The First Clinical College of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Dongming Lu
- The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Hongliang Tang
- Guangxi University of Traditional Chinese Medicine Affiliated Fangchenggang Hospital, Fangchenggang, China.
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331
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Bertagna NB, Holmgren EB, Engi SA, Ha L, Cruz FC, Albrechet-Souza L, Wills TA. BNST CRF receptor type 1 modulates mechanical hypersensitivity induced by adolescent alcohol exposure in adult female mice. Psychopharmacology (Berl) 2024:10.1007/s00213-024-06693-8. [PMID: 39348004 DOI: 10.1007/s00213-024-06693-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 09/18/2024] [Indexed: 10/01/2024]
Abstract
RATIONALE Alcohol exposure during adolescence has been linked to long-lasting behavioral consequences, contributing to the development of alcohol use disorder. Negative affect and chronic pain during alcohol withdrawal are critical factors influencing problematic alcohol use and relapse. Our previous research demonstrated that adolescent intermittent ethanol (AIE) vapor exposure elicits sex-specific negative affect-like behavior in adult mice following stress exposure. Additionally, AIE induces persistent mechanical hypersensitivity, which is accompanied by increased activation of corticotropin-releasing factor receptor type 1 (CRFR1) neurons in the dorsolateral bed nucleus of the stria terminalis (dlBNST). OBJECTIVES This study extends previous work by investigating plasma corticosterone levels and CRFR1 protein expression in the dlBNST following restraint stress exposure in adult mice with an AIE history. We also aim to explore the role of dlBNST CRFR1 signaling in mediating negative affect-like behavior and mechanical hypersensitivity. RESULTS Female mice exhibited elevated plasma corticosterone levels compared to males following restraint stress. Moreover, females with AIE history showed higher expression of CRFR1 protein in the dlBNST compared to air controls. Antagonism of CRFR1 in the dlBNST blocked AIE-induced mechanical hypersensitivity in adult females but did not affect stress-induced negative affect-like behavior. In alcohol-naïve females, intra-dlBNST administration of a CRFR1 agonist induced mechanical hypersensitivity. CONCLUSIONS These findings provide new insights into the neurobiological mechanisms underlying stress-induced negative affect and pain-related behavior, both influenced by a history of adolescent alcohol exposure. The results suggest that CRFR1 antagonists warrant further investigation for their potential in addressing alcohol-related chronic pain.
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Affiliation(s)
- Natalia B Bertagna
- Department of Cell Biology & Anatomy, School of Medicine, Louisiana State University Health Sciences Center, 533 Bolivar Street, New Orleans, LA, 70112, USA
- Department of Pharmacology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Eleanor B Holmgren
- Department of Cell Biology & Anatomy, School of Medicine, Louisiana State University Health Sciences Center, 533 Bolivar Street, New Orleans, LA, 70112, USA
- Department of Pharmacology, School of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Sheila A Engi
- Department of Cell Biology & Anatomy, School of Medicine, Louisiana State University Health Sciences Center, 533 Bolivar Street, New Orleans, LA, 70112, USA
- Alcohol & Drug Center of Excellence, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Linh Ha
- Department of Cell Biology & Anatomy, School of Medicine, Louisiana State University Health Sciences Center, 533 Bolivar Street, New Orleans, LA, 70112, USA
| | - Fabio C Cruz
- Department of Pharmacology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Lucas Albrechet-Souza
- Department of Cell Biology & Anatomy, School of Medicine, Louisiana State University Health Sciences Center, 533 Bolivar Street, New Orleans, LA, 70112, USA.
- Alcohol & Drug Center of Excellence, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, USA.
| | - Tiffany A Wills
- Department of Cell Biology & Anatomy, School of Medicine, Louisiana State University Health Sciences Center, 533 Bolivar Street, New Orleans, LA, 70112, USA
- Alcohol & Drug Center of Excellence, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, USA
- Neuroscience Center of Excellence, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, USA
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332
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Watteyne J, Chudinova A, Ripoll-Sánchez L, Schafer WR, Beets I. Neuropeptide signaling network of Caenorhabditis elegans: from structure to behavior. Genetics 2024:iyae141. [PMID: 39344922 DOI: 10.1093/genetics/iyae141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 08/19/2024] [Indexed: 10/01/2024] Open
Abstract
Neuropeptides are abundant signaling molecules that control neuronal activity and behavior in all animals. Owing in part to its well-defined and compact nervous system, Caenorhabditis elegans has been one of the primary model organisms used to investigate how neuropeptide signaling networks are organized and how these neurochemicals regulate behavior. We here review recent work that has expanded our understanding of the neuropeptidergic signaling network in C. elegans by mapping the evolutionary conservation, the molecular expression, the receptor-ligand interactions, and the system-wide organization of neuropeptide pathways in the C. elegans nervous system. We also describe general insights into neuropeptidergic circuit motifs and the spatiotemporal range of peptidergic transmission that have emerged from in vivo studies on neuropeptide signaling. With efforts ongoing to chart peptide signaling networks in other organisms, the C. elegans neuropeptidergic connectome can serve as a prototype to further understand the organization and the signaling dynamics of these networks at organismal level.
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Affiliation(s)
- Jan Watteyne
- Department of Biology, University of Leuven, Leuven 3000, Belgium
| | | | - Lidia Ripoll-Sánchez
- Neurobiology Division, MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
- Department of Psychiatry, Cambridge University, Cambridge CB2 0SZ, UK
| | - William R Schafer
- Department of Biology, University of Leuven, Leuven 3000, Belgium
- Neurobiology Division, MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | - Isabel Beets
- Department of Biology, University of Leuven, Leuven 3000, Belgium
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333
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Taniguchi N, Ohkawa Y, Kuribara T, Abe J, Harada Y, Takahashi M. Roles of Glyco-redox in Epithelial Mesenchymal Transition and Mesenchymal Epithelial Transition, Cancer, and Various Diseases. Antioxid Redox Signal 2024. [PMID: 39345141 DOI: 10.1089/ars.2024.0774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Abstract
SIGNIFICANCE Reduction-oxidation (redox) regulation is an important biological phenomenon that provides a balance between antioxidants and the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) under pathophysiological conditions. Structural and functional changes in glycans are also important as post-translational modifications of proteins. The integration of glycobiology and redox biology, called Glyco-redox has provided new insights into the mechanisms of epithelial-mesenchymal transition (EMT)/mesenchymal-epithelial transition (MET), cancer, and various diseases including Alzheimer's disease (AD), chronic obstructive lung disease (COPD), type 2 diabetes, interstitial pneumonitis, and ulcerative colitis (UC), . RECENT ADVANCES Glycans are biosynthesized by specific glycosyltransferases and each glycosyltransferase is either directly or indirectly regulated by oxidative stress and redox regulation. A typical example of Glyco-redox is the role of N-glycan referred to as core fucose in superoxide dismutase 3 (SOD3). This glycan was found to be involved in the growth inhibition of cancer cell lines. CRITICAL ISSUES The significance of Glyco-redox in EMT/MET, cancer and various diseases was found in major N-glycan branching glycosyltransferases GnT-III, GnT-IV, GnT-V, VI, GnT-IX, Fut8, and ST6Gal1. Herein, we summarize previous reports on the target proteins and how this relates to oxidative stress. We also discuss the products of these processes and their significance to cancer and various diseases.
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Affiliation(s)
- Naoyuki Taniguchi
- Osaka International Cancer Institute, Department of Glyco-Oncology and Medical Biochemistry , Osaka, Osaka, Japan;
| | - Yuki Ohkawa
- Osaka International Cancer Institute, Department of Glyco-Oncology and Medical Biochemistry, Osaka, Japan;
| | - Taiki Kuribara
- Osaka International Cancer Institute, Department of Glyco-Oncology and Medical Biochemistry , Osaka, Osaka, Japan;
| | - Junpei Abe
- Osaka International Cancer Institute, Department of Glyco-Oncology and Medical Biochemistry , Osaka, Osaka, Japan;
| | - Yoichiro Harada
- Osaka International Cancer Institute, Department of Glyco-Oncology and Medical Biochemistry, Osaka, Japan;
| | - Motoko Takahashi
- Sapporo Medical University, Department of Biochemistry, Sapporo, Japan;
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Bazbaz W, Kartawy M, Hamoudi W, Ojha SK, Khaliulin I, Amal H. The Role of Thioredoxin System in Shank3 Mouse Model of Autism. J Mol Neurosci 2024; 74:90. [PMID: 39347996 DOI: 10.1007/s12031-024-02270-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2024] [Accepted: 09/17/2024] [Indexed: 10/01/2024]
Abstract
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder characterized by difficulties in social interaction and communication, repetitive behaviors, and restricted interests. Unfortunately, the underlying molecular mechanism behind ASD remains unknown. It has been reported that oxidative and nitrosative stress are strongly linked to ASD. We have recently found that nitric oxide (NO•) and its products play an important role in this disorder. One of the key proteins associated with NO• is thioredoxin (Trx). We hypothesize that the Trx system is altered in the Shank3 KO mouse model of autism, which may lead to a decreased activity of the nuclear factor erythroid 2-related factor 2 (Nrf2), resulting in oxidative stress, and thus, contributing to ASD-related phenotypes. To test this hypothesis, we conducted in vivo behavioral studies and used primary cortical neurons derived from the Shank3 KO mice and human SH-SY5Y cells with SHANK3 mutation. We showed significant changes in the levels and activity of Trx redox proteins in the Shank3 KO mice. A Trx1 inhibitor PX-12 decreased Trx1 and Nrf2 expression in wild-type mice, causing abnormal alterations in the levels of synaptic proteins and neurotransmission markers, and an elevation of nitrosative stress. Trx inhibition resulted in an ASD-like behavioral phenotype, similar to that of Shank3 KO mice. Taken together, our findings confirm the strong link between the Trx system and ASD pathology, including the increased oxidative/nitrosative stress, and synaptic and behavioral deficits. The results of this study may pave the way for identifying novel drug targets for ASD.
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Affiliation(s)
- Wisam Bazbaz
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Maryam Kartawy
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Wajeha Hamoudi
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Shashank Kumar Ojha
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Igor Khaliulin
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Haitham Amal
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.
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Tripathi S, Kharkwal G, Mishra R, Singh G. Nuclear factor erythroid 2-related factor 2 (Nrf2) signaling in heavy metals-induced oxidative stress. Heliyon 2024; 10:e37545. [PMID: 39309893 PMCID: PMC11416300 DOI: 10.1016/j.heliyon.2024.e37545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 09/02/2024] [Accepted: 09/04/2024] [Indexed: 09/25/2024] Open
Abstract
Organisms encounter reactive oxidants through intrinsic metabolism and environmental exposure to toxicants. Reactive oxygen and nitrogen species (ROS, RNS) are generally considered detrimental because they induce oxidative stress. In order to combat oxidative stress, a potential modulator of cellular defense nuclear factor erythroid 2-related factor 2 (Nrf2) and its endogenous inhibitor Kelch-like ECH-associated protein 1 (Keap1) operate as a common, genetically preserved intrinsic defense system. There has been a significant increase in the amount of harmful metalloids and metals that individuals are exposed to through their food, water, and air, primarily due to human activities. Many studies have looked at the connection between the emergence of different ailments in humans and ecological exposure to metalloids, i.e., arsenic (As) and metals viz., chromium (Cr), mercury (Hg), cadmium (Cd), cobalt (Co), and lead (Pb). It is known that they can produce ROS in several organs by both direct and indirect means. Studies suggest that Nrf2 signaling is a crucial mechanism in maintaining antioxidant balance and can have two roles, depending on the particular biological setting. From one perspective, Nrf2 is an essential defense mechanism against metal-induced toxicity. Still, it may also operate as a catalyst for metal-induced carcinogenesis in situations involving protracted exposure and persistent activation. Therefore, this review aims to provide an overview of the antioxidant defense mechanism of Nrf2-Keap1 signaling and the interrelation between Nrf2 signaling and the toxic elements.
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Affiliation(s)
- Swapnil Tripathi
- Toxicology Department, ICMR-National Institute of Occupational Health, Ahmedabad-380016, India
- Department of Biochemistry & Forensic Science, Gujarat University, Ahmedabad - 380009, India
| | - Gitika Kharkwal
- Toxicology Department, ICMR-National Institute of Occupational Health, Ahmedabad-380016, India
| | - Rajeev Mishra
- Department of Life Sciences & Biotechnology, Chhatrapati Shahu Ji Maharaj University Kanpur - 208024, India
| | - Gyanendra Singh
- Toxicology Department, ICMR-National Institute of Occupational Health, Ahmedabad-380016, India
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Schultes FPJ, Welter L, Schmidtke M, Tischler D, Mügge C. A tailored cytochrome P450 monooxygenase from Gordonia rubripertincta CWB2 for selective aliphatic monooxygenation. Biol Chem 2024:hsz-2024-0041. [PMID: 39331465 DOI: 10.1515/hsz-2024-0041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 09/04/2024] [Indexed: 09/28/2024]
Abstract
Cytochrome P450 monooxygenases are recognized as versatile biocatalysts due to their broad reaction capabilities. One important reaction is the hydroxylation of non-activated C-H bonds. The subfamily CYP153A is known for terminal hydroxylation reactions, giving access to functionalized aliphatics. Whilst fatty derivatives may be converted by numerous enzyme classes, midchain aliphatics are seldomly accepted, a prime property of CYP153As. We report here on a new CYP153A member from the genome of the mesophilic actinobacterium Gordonia rubripertincta CWB2 as an efficient biocatalyst. The gene was overexpressed in Escherichia coli and fused with a surrogate electron transport system from Acinetobacter sp. OC4. This chimeric self-sufficient whole-cell system could perform hydroxylation and epoxidation reactions: conversions of C6-C14 alkanes, alkenes, alcohols and of cyclic compounds were observed, yielding production rates of, e.g., 2.69 mM h-1 for 1-hexanol and 4.97 mM h-1 for 1,2-epoxyhexane. Optimizing the linker compositions between the protein units led to significantly altered activity. Balancing linker length and flexibility with glycine-rich and helix-forming linker units increased 1-hexanol production activity to 350 % compared to the initial linker setup with entirely helical linkers. The study shows that strategic coupling of efficient electron supply and a selective enzyme enables previously challenging monooxygenation reactions of midchain aliphatics.
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Affiliation(s)
- Fabian Peter Josef Schultes
- Microbial Biotechnology, Faculty of Biology and Biotechnology, 9142 Ruhr University Bochum , D-44801 Bochum, Germany
| | - Leon Welter
- Microbial Biotechnology, Faculty of Biology and Biotechnology, 9142 Ruhr University Bochum , D-44801 Bochum, Germany
| | - Myra Schmidtke
- Microbial Biotechnology, Faculty of Biology and Biotechnology, 9142 Ruhr University Bochum , D-44801 Bochum, Germany
| | - Dirk Tischler
- Microbial Biotechnology, Faculty of Biology and Biotechnology, 9142 Ruhr University Bochum , D-44801 Bochum, Germany
| | - Carolin Mügge
- Microbial Biotechnology, Faculty of Biology and Biotechnology, 9142 Ruhr University Bochum , D-44801 Bochum, Germany
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Yang J, Geng Y, Zhao B, Liu T, Luo JL, Gao XJ. Green tea polyphenols alleviate TBBPA-induced gastric inflammation and apoptosis by modulating the ROS-PERK/IRE-1/ATF6 pathway in mouse models. Food Funct 2024; 15:10179-10189. [PMID: 39301672 DOI: 10.1039/d4fo03012e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
Green tea polyphenols (GTP), an important phytochemical in the daily human diet, bind to various cellular receptors and exert anti-inflammatory and antioxidant benefits. The environmental contaminant tetrabromobisphenol A (TBBPA) enters the digestive system through multiple pathways, resulting in oxidative stress (OS), gastroenteritis, and mucosal injury. The aim of this study was to explore the molecular mechanisms of TBBPA-induced gastritis in mice treated with GTP in vivo and in an in vitro model. The results showed that exposure to TBBPA increased reactive oxygen species (ROS) levels, activated oxidative stress (OS) induced endoplasmic reticulum stress (ERS), and the expression of endoplasmic reticulum stress-related factors (e.g., GRP78, PERK, IRE-1, ATF-6, etc.) increased. The inflammatory pathway NF-κB was activated, and the pro-inflammatory factors TNF-α, IL-1β, and IL-6 increased, while triggering a cascade reaction mediated by caspase-3. However, the addition of GTP could inhibit OS, restore the balance of endoplasmic reticulum homeostasis, and improve the inflammatory infiltration and apoptosis of gastric mucosal epithelial cells. Therefore, GTP alleviated ERS, reduced inflammation and apoptosis, and restored the gastric mucosal barrier by alleviating TBBPA-induced OS in mouse gastric tissues and GES-1 cells. This provides basic information for exploring the antioxidant mechanism of GTP and further investigating the toxic effects of TBBPA on mouse gastric mucosa.
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Affiliation(s)
- Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150000, China.
| | - Yuan Geng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150000, China.
| | - Bing Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150000, China.
| | - Tianjing Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150000, China.
| | - Ji-Long Luo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150000, China.
| | - Xue-Jiao Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150000, China.
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338
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Xia L, Qiu Y, Li J, Xu M, Dong Z. The Potential Role of Artemisinins Against Neurodegenerative Diseases. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2024:1-20. [PMID: 39343990 DOI: 10.1142/s0192415x24500642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Abstract
Artemisinin (ART) and its derivatives, collectively referred to as artemisinins (ARTs), have been approved for the treatment of malaria for decades. ARTs are converted into dihydroartemisinin (DHA), the only active form, which is reductive in vivo. In this review, we provide a brief overview of the neuroprotective potential of ARTs and the underlying mechanisms on several of the most common neurodegenerative diseases, particularly considering their potential application in those associated with cognitive and motor impairments including Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS). ARTs act as autophagy balancers to alleviate AD and PD. They inhibit neuroinflammatory responses by regulating phosphorylation of signal transduction proteins, such as AKT, PI3K, ERK, NF-[Formula: see text]B, p38 MAPK, I[Formula: see text]B[Formula: see text]. In addition, ARTs regulate GABAergic signaling in a dose-dependent manner. Although they competitively inhibit the binding of gephyrin to GABAergic receptors, low doses of ARTs enhance GABAergic signaling. ARTs can also inhibit ferroptosis, activate the Akt/Bcl-2, AMPK, or ERK/CREB pathways to reduce oxidative stress, and maintain mitochondrial homeostasis, protecting neurons from oxidative stress injury. More importantly, ARTs structurally combine with and suppress [Formula: see text]-Amyloid (A[Formula: see text]-induced neurotoxicity, reduce P-tau, and maintain O-GlcNAcylation/Phosphorylation balance, leading to relieved pathological changes in neurodegenerative diseases. Collectively, these natural properties endow ARTs with unique potential for application in neurodegenerative diseases.
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Affiliation(s)
- Lei Xia
- Growth, Development, and Mental Health of Children and Adolescence Center Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders National Clinical Research Center for Child Health and Disorders Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders Children's Hospital of Chongqing Medical University, Chongqing 400014, P. R. China
| | - Yiqiong Qiu
- Medical Laboratory of Changshou District Hospital of Traditional Chinese Medicine Chongqing 401220, P. R. China
| | - Junjie Li
- Growth, Development, and Mental Health of Children and Adolescence Center Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders National Clinical Research Center for Child Health and Disorders Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders Children's Hospital of Chongqing Medical University, Chongqing 400014, P. R. China
| | - Mingliang Xu
- Growth, Development, and Mental Health of Children and Adolescence Center Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders National Clinical Research Center for Child Health and Disorders Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders Children's Hospital of Chongqing Medical University, Chongqing 400014, P. R. China
| | - Zhifang Dong
- Growth, Development, and Mental Health of Children and Adolescence Center Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders National Clinical Research Center for Child Health and Disorders Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders Children's Hospital of Chongqing Medical University, Chongqing 400014, P. R. China
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Woo CW, Choi MY, Heo H, Chae YJ, Sung YS, Choi Y, Woo DC. Ineffectiveness of 6,2',4'-trimethoxyflavone in mitigating cerebral ischemia/reperfusion injury after post-reperfusion administration in rats. Acta Radiol 2024:2841851241275278. [PMID: 39344293 DOI: 10.1177/02841851241275278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Abstract
BACKGROUND Pharmacological inhibition of aryl hydrocarbon receptor (AhR) activation after ischemia alleviates cerebral ischemia/reperfusion (IR) injury. PURPOSE To investigate whether AhR antagonist administration after reperfusion was also effective in attenuating cerebral IR injury. MATERIAL AND METHODS A total of 24 Sprague-Dawley rats were divided into the sham-operated group (no IR), control group (IR), and 6,2',4'-trimethoxyflavone (TMF) group (IR + TMF administration), with 10 rats assigned to each group. Cerebral IR injury was induced by 60 min of middle cerebral artery occlusion followed by reperfusion. TMF (5 mg/kg) was used as the AhR antagonist and was administered intraperitoneally immediately after reperfusion. Cerebral IR injury was observed using magnetic resonance imaging (MRI) and neurobehavioral assessments at baseline, immediately after ischemia, and at 3 days after ischemia. RESULTS On MRI, the TMF group showed no significant differences in relative apparent diffusion coefficient (ADC), T2, and fractional anisotropy (FA) values; midline shift value; and infarct volume. In terms of neurobehavioral function, factors such as grip strength, contralateral forelimb use, time to touch, and time to remove adhesive tape from the forepaw, were also not significantly different between the control and TMF groups. CONCLUSION This study demonstrated that AhR treatment after reperfusion had no noticeable effect on reducing cerebral IR injury in rats.
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Affiliation(s)
- Chul-Woong Woo
- Convergence Medicine Research Center, Asan Medical Center, Songpa-gu, Seoul, Republic of Korea
| | - Monica Young Choi
- Asan Institute for Life Sciences, Asan Medical Center, Songpa-gu, Seoul, Republic of Korea
| | - Hwon Heo
- Asan Institute for Life Sciences, Asan Medical Center, Songpa-gu, Seoul, Republic of Korea
| | - Yeon Ji Chae
- Asan Institute for Life Sciences, Asan Medical Center, Songpa-gu, Seoul, Republic of Korea
| | - Yu Sub Sung
- Clinical Research Center, Asan Medical Center, Songpa-gu, Seoul, Republic of Korea
| | - Yoonseok Choi
- Medical Research Institute, Gangneung Asan Hospital, Gangneung-si, Gangwon-do, Republic of Korea
| | - Dong Cheol Woo
- Convergence Medicine Research Center, Asan Medical Center, Songpa-gu, Seoul, Republic of Korea
- Department of Medical Science, AMIST, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul, Republic of Korea
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Buranasudja V, Sanookpan K, Vimolmangkang S, Binalee A, Mika K, Krobthong S, Kerdsomboon K, Kumkate S, Poolpak T, Kidhakarn S, Yang KM, Limcharoensuk T, Auesukaree C. Pretreatment with aqueous Moringa oleifera Lam. leaf extract prevents cadmium-induced hepatotoxicity by improving cellular antioxidant machinery and reducing cadmium accumulation. Heliyon 2024; 10:e37424. [PMID: 39309955 PMCID: PMC11416483 DOI: 10.1016/j.heliyon.2024.e37424] [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: 05/06/2024] [Revised: 07/25/2024] [Accepted: 09/03/2024] [Indexed: 09/25/2024] Open
Abstract
Cadmium (Cd) is a highly harmful pollutant that poses a serious threat to human health. The liver is the primary organ for Cd accumulation, and Cd-induced hepatotoxicity has been shown to be strongly correlated with an oxidative imbalance in hepatocytes. Our previous studies in the eukaryotic model organism Saccharomyces cerevisiae revealed that not only co-treatment but also pretreatment with aqueous Moringa oleifera Lam. leaf extract (AMOLE) effectively mitigated Cd toxicity by reducing intracellular Cd accumulation and Cd-mediated oxidative stress. In this study, we therefore investigated the preventive effect of AMOLE against Cd toxicity in human HepG2 hepatocytes. The results showed that, similar to the case of the yeast model, pretreatment with AMOLE prior to Cd exposure also significantly inhibited Cd-induced oxidative stress in HepG2 cells. Untargeted LC-MS/MS-based metabolomic analysis of AMOLE revealed that its major phytochemical constituents were organic acids, particularly phenolic acids and carboxylic acids. Additionally, DPPH-HPTLC fingerprints suggested that quercetin and other flavonoids possibly contribute to the antioxidant activities of AMOLE. Based on our findings, it appears that pretreatment with AMOLE prevented Cd-induced hepatotoxicity via three possible mechanisms: i) direct elimination of free radicals by AMOLE antioxidant compounds; ii) upregulation of antioxidant defensive machinery (GPx1, and HO-1) via Nrf2 signaling cascade to improve cellular antioxidant capacity; and iii) reduction of intracellular Cd accumulation, probably by suppressing Cd uptake. These data strongly suggest the high potential of AMOLE for clinical utility in the prevention of Cd toxicity.
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Affiliation(s)
- Visarut Buranasudja
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence in Natural Products for Ageing and Chronic Diseases, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kittipong Sanookpan
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Nabsolute Co., Ltd., Bangkok, 10330, Thailand
| | - Sornkanok Vimolmangkang
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence in Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Asma Binalee
- HPTLC Center, Chula PharTech Co., Ltd., Bangkok, 10330, Thailand
| | - Kamil Mika
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Pharmacological Screening, Jagiellonian University Medical College, 9 Medyczna Street, Krakow, PL, 30-688, Poland
| | - Sucheewin Krobthong
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kittikhun Kerdsomboon
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
- Mahidol University-Osaka University Collaborative Research Center for Bioscience and Biotechnology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Supeecha Kumkate
- Department of Biology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Toemthip Poolpak
- Department of Biology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), CHE, OPS, MHESI, Bangkok, 10400, Thailand
| | - Siraprapa Kidhakarn
- Department of Biology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Kwang Mo Yang
- Department of Biology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), CHE, OPS, MHESI, Bangkok, 10400, Thailand
| | - Tossapol Limcharoensuk
- Mahidol University-Osaka University Collaborative Research Center for Bioscience and Biotechnology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Choowong Auesukaree
- Mahidol University-Osaka University Collaborative Research Center for Bioscience and Biotechnology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
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Youssef AMM, Althneibat THA, Maaty DAM, Gaber Y. Antimicrobial and Anti-Inflammatory Potential of Euphorbia paralias (L.): a bioprospecting study with phytoconstituents analysis. J Pharmacopuncture 2024; 27:223-233. [PMID: 39350926 PMCID: PMC11439520 DOI: 10.3831/kpi.2024.27.3.223] [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: 03/09/2024] [Revised: 04/03/2024] [Accepted: 06/28/2024] [Indexed: 10/04/2024] Open
Abstract
Objectives The phytochemicals in the aerial parts of Euphorbia paralias (also known as Sea Spurge) and their anti-inflammatory and antimicrobial activities were investigated. Methods The methanolic extract was characterized using GC-MS and HPLC techniques. The anti-inflammatory feature was estimated through a Human Red Blood Cell (HRBC) membrane stabilization technique, while the antimicrobial feature was evaluated by the disc diffusion agar technique, minimum bactericidal concentration, and minimum inhibitory concentration (MIC) via micro-broth dilution method. Results The GC/MS results demonstrated the existence of various phytochemicals, such as n-hexadecenoic acid, cis-11-eicosenoic acid, and methyl stearate, recognized for their anti-inflammatory and antibacterial features. The similarity of the phytochemical composition with other Euphorbia species emphasizes the genus-wide similarity. The anti-inflammatory activity exhibited a noteworthy inhibitory effect comparable to the reference drug indomethacin. The extract's antimicrobial potential was tested against a range of microorganisms, demonstrating significant action against Gram-positive bacteria and Candida albicans. The quantification of total phenolics and flavonoids further supported the therapeutic potential of the extract. Conclusion The methanolic extract from E. paralias emerges as a successful natural source of important active constituents with potential applications as anti-inflammatory and antimicrobial agents. This research provides a first step to valorize Euphorbia paralias insights as a source of worthwhile phytochemicals that have potential applications in the pharmaceutical industry.
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Affiliation(s)
| | | | - Doaa Ahmed Mohamed Maaty
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Girls Branch, Cairo, Egypt
| | - Yasser Gaber
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Mutah University, Al-Karak, Jordan
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342
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Hwang JH, An GJ, Kim CH, Chung HY, Lim KM. Trivalent arsenicals induce skin toxicity through thiol depletion. Toxicol Appl Pharmacol 2024; 492:117115. [PMID: 39357682 DOI: 10.1016/j.taap.2024.117115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 09/13/2024] [Accepted: 09/27/2024] [Indexed: 10/04/2024]
Abstract
Arsenic, a widespread environmental contaminant, is highly toxic to human health. Arsenic exposure is associated with the occurrence of skin lesions and diseases. This study investigated the dermal toxicity of trivalent arsenicals (AsIII and MMAIII) and its underlying mechanism using human keratinocyte cell line and ex vivo porcine skin. AsIII and MMAIII induced concentration-dependent cell apoptosis and necrosis in HaCaT cells, which was confirmed in ex vivo porcine skin. AsIII and MMAIII increased reactive oxygen species generation and GSH depletion. Interestingly, radical scavenger antioxidants such as Vitamin C failed to mitigate arsenic-induced cytotoxicity, while thiol-containing compounds effectively alleviated it, suggesting a key role of thiol depletion in the trivalent arsenical-induced dermal toxicity. DMSA showed the strongest protective effects against AsIII and MMAIII-induced cytotoxicity in HaCaT cells. Of note, DMSA restored arsenical-induced tissue damage, and reduced the apoptosis in ex vivo porcine skin, highlighting its potential use to alleviate arsenic-induced skin lesions and diseases.
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Affiliation(s)
- Jee-Hyun Hwang
- College of Pharmacy, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Gwang Jin An
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Chang-Hwan Kim
- Chem-Bio Technology Center, Agency for Defense Development, Republic of Korea
| | - Han Young Chung
- College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Kyung-Min Lim
- College of Pharmacy, Ewha Womans University, Seoul 03760, Republic of Korea.
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343
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Ong F, Molenberghs G, Callegaro A, Van der Elst W, Stijven F, Verbeke G, Van Keilegom I, Alonso A. Assessing the Operational Characteristics of the Individual Causal Association as a Metric of Surrogacy in the Binary Continuous Setting. Pharm Stat 2024. [PMID: 39343430 DOI: 10.1002/pst.2437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 07/15/2024] [Accepted: 08/15/2024] [Indexed: 10/01/2024]
Abstract
In a causal inference framework, a new metric has been proposed to quantify surrogacy for a continuous putative surrogate and a binary true endpoint, based on information theory. The proposed metric, termed the individual causal association (ICA), was quantified using a joint causal inference model for the corresponding potential outcomes. Due to the non-identifiability inherent in this type of models, a sensitivity analysis was introduced to study the behavior of the ICA as a function of the non-identifiable parameters characterizing the aforementioned model. In this scenario, to reduce uncertainty, several plausible yet untestable assumptions like monotonicity, independence, conditional independence or homogeneous variance-covariance, are often incorporated into the analysis. We assess the robustness of the methodology regarding these simplifying assumptions via simulation. The practical implications of the findings are demonstrated in the analysis of a randomized clinical trial evaluating an inactivated quadrivalent influenza vaccine.
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Affiliation(s)
- Fenny Ong
- I-BioStat, Department of Mathematics and Statistics, Universiteit Hasselt, Diepenbeek, Belgium
| | - Geert Molenberghs
- I-BioStat, Department of Mathematics and Statistics, Universiteit Hasselt, Diepenbeek, Belgium
- I-BioStat, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Andrea Callegaro
- Statistical Innovation and Data Science, GSK Vaccines, Rixensart, Belgium
| | - Wim Van der Elst
- Statistics and Decision Sciences, The Janssen Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium
| | - Florian Stijven
- I-BioStat, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Geert Verbeke
- I-BioStat, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Ingrid Van Keilegom
- ORSTAT, Faculty of Economics and Business Administration, KU Leuven, Leuven, Belgium
| | - Ariel Alonso
- I-BioStat, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
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Qian Y, Schlachter L, Eckert D, Stodtmann S, Shmagel A, Peng Y, Liu W, Mohamed MEF. Extrapolation of Upadacitinib Efficacy in Juvenile Idiopathic Arthritis Leveraging Pharmacokinetics, Exposure-Response Models, and Real-World Patient Data. Clin Pharmacol Ther 2024. [PMID: 39344158 DOI: 10.1002/cpt.3441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 08/22/2024] [Indexed: 10/01/2024]
Abstract
Juvenile idiopathic arthritis (JIA) is the most prevalent pediatric rheumatic disease. While disease-modifying antirheumatic drugs (DMARDs), especially biologics, have greatly transformed the management of JIA, there remain some unmet medical needs that require new treatment options. The objective of this work was to describe and apply a modeling and simulation approach to extrapolate upadacitinib efficacy from the adult diseases, rheumatoid arthritis (RA) and psoriatic arthritis (PsA), to their respective pediatric diseases, polyarticular course JIA (pcJIA), and juvenile PsA (JPsA). A population pharmacokinetic model characterized upadacitinib pharmacokinetics in pediatric patients using data from two phase I studies in pediatric patients with pcJIA (N = 51) or atopic dermatitis (N = 33). Efficacy simulations were conducted using previously developed exposure-response models in adults with RA and PsA. Real-world pcJIA and JPsA patient databases were leveraged to construct representative patient profiles for the targeted population. Following administration of the proposed weight-based dosing regimen, the model-predicted median upadacitinib plasma exposures in pediatric patients were within 20% of those in adult RA and PsA patients receiving the approved adult regimen. Simulations demonstrate that upadacitinib efficacy in pcJIA and JPsA is predicted to be non-inferior to that in adults with RA or PsA, respectively. The results of this work enabled recent approvals of upadacitinib for the treatment of polyarticular JIA and JPsA in the United States. Upadacitinib safety in pediatrics is being further evaluated in ongoing clinical trials.
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Affiliation(s)
- Yuli Qian
- Clinical Pharmacology, AbbVie Inc., North Chicago, Illinois, USA
| | - Louisa Schlachter
- Clinical Pharmacology, AbbVie Deutschland GmbH & Co. KG, Ludwigshafen am Rhein, Germany
| | - Doerthe Eckert
- Clinical Pharmacology, AbbVie Deutschland GmbH & Co. KG, Ludwigshafen am Rhein, Germany
| | - Sven Stodtmann
- Clinical Pharmacology, AbbVie Deutschland GmbH & Co. KG, Ludwigshafen am Rhein, Germany
| | - Anna Shmagel
- Immunology Development, AbbVie Inc., North Chicago, Illinois, USA
| | - Yi Peng
- Health Economics and Outcomes Research, AbbVie Inc., North Chicago, Illinois, USA
| | - Wei Liu
- Clinical Pharmacology, AbbVie Inc., North Chicago, Illinois, USA
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345
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Chen M, Wu X, Zhang L, Zhang F, Li L, Zhang Y, Xiong D, Qiu Y, Hu L, Xiao W. Neural mechanisms underlying placebo and nocebo effects in tonic muscle pain. Neuroimage 2024; 300:120877. [PMID: 39353538 DOI: 10.1016/j.neuroimage.2024.120877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 08/06/2024] [Accepted: 09/28/2024] [Indexed: 10/04/2024] Open
Abstract
Pain is a highly subjective and multidimensional experience, significantly influenced by various psychological factors. Placebo analgesia and nocebo hyperalgesia exemplify this influence, where inert treatments result in pain relief or exacerbation, respectively. While extensive research has elucidated the psychological and neural mechanisms behind these effects, most studies have focused on transient pain stimuli. To explore these mechanisms in the context of tonic pain, we conducted a study using a 15-minute tonic muscle pain induction procedure, where hypertonic saline was infused into the left masseter of healthy participants. We collected real-time Visual Analogue Scale (VAS) scores and functional magnetic resonance imaging (fMRI) data during the induction of placebo analgesia and nocebo hyperalgesia via conditioned learning. Our findings revealed that placebo analgesia was more pronounced and lasted longer than nocebo hyperalgesia. Real-time pain ratings correlated significantly with neural activity in several brain regions. Notably, the putamen was implicated in both effects, while the caudate and other regions were differentially involved in placebo and nocebo effects. These findings confirm that the tonic muscle pain paradigm can be used to investigate the mechanisms of placebo and nocebo effects and indicate that placebo analgesia and nocebo hyperalgesia may have more distinct than common neural bases.
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Affiliation(s)
- Min Chen
- Department of Anesthesiology, Shenzhen Samii Medical Center, Guangdong Province, China
| | - Xiao Wu
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China; CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Libo Zhang
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China; CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Fengrui Zhang
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China; CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Linling Li
- Research Center for Neural Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Guangdong Province, China
| | - Yingying Zhang
- Department of Anesthesiology, Loudi Central Hospital, Hunan Province, China
| | - Donglin Xiong
- Department of Neurology, Loudi Central Hospital, Hunan Province, China
| | - Yunhai Qiu
- Research Center for Neural Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Guangdong Province, China
| | - Li Hu
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China; CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
| | - Weibo Xiao
- Department of Neurology, Loudi Central Hospital, Hunan Province, China; Department of Pain, Nanshan Hospital of Shenzhen City, Guangdong Medical College, Guangdong Province, China.
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346
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Lin Z, Luo X, Wickman JR, Reddy D, DaCunza JT, Pande R, Tian Y, Kasimoglu EE, Triana V, Lee J, Furdui CM, Pink D, Sacan A, Ajit SK. Inflammatory pain resolution by mouse serum-derived small extracellular vesicles. Brain Behav Immun 2024:S0889-1591(24)00636-6. [PMID: 39349284 DOI: 10.1016/j.bbi.2024.09.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 09/23/2024] [Accepted: 09/27/2024] [Indexed: 10/02/2024] Open
Abstract
Current treatments for chronic pain have limited efficacy and significant side effects, warranting research on alternative strategies for pain management. One approach involves using small extracellular vesicles (sEVs), or exosomes, to transport beneficial biomolecular cargo to aid pain resolution. Exosomes are 30-150 nm sEVs that can be beneficial or harmful depending on their source and cargo composition. We report a comprehensive multi-modal analysis of different aspects of sEV characterization, miRNAs, and protein markers across sEV sources. To investigate the short and long-term effects of mouse serum-derived sEVs in pain modulation, sEVs from naïve control or spared nerve injury (SNI) model male donor mice were injected intrathecally into naïve male recipient mice. These sEVs transiently increased basal mechanical thresholds, an effect mediated by opioid signaling as this outcome was blocked by naltrexone. Mass Spectrometry of sEVs detected endogenous opioid peptide leu-enkephalin. sEVs from naïve female mice have higher levels of leu-enkephalin compared to male and showed stronger effects in male recipients. In investigating the long-term effect of sEVs, we observed that a single prophylactic intrathecal injection of sEVs two weeks prior to induction of the pain model in recipient mice accelerated recovery from inflammatory pain after complete Freund's adjuvant (CFA) injection. Our exploratory studies examining immune cell populations in spinal cord and dorsal root ganglion using ChipCytometry suggested alterations in immune cell populations 14 days post-CFA. Flow cytometry confirmed increases in CD206+ macrophages in the spinal cord in sEV-treated mice. Collectively, these studies demonstrate multiple mechanisms by which sEVs can attenuate pain.
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Affiliation(s)
- Zhucheng Lin
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA
| | - Xuan Luo
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA
| | - Jason R Wickman
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA
| | - Deepa Reddy
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA
| | - Jason T DaCunza
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA
| | - Richa Pande
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA
| | - Yuzhen Tian
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA
| | - Ezgi E Kasimoglu
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA
| | | | - Jingyun Lee
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Cristina M Furdui
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Desmond Pink
- Nanostics Inc., Edmonton, Alberta T5J 4P6, Canada
| | - Ahmet Sacan
- School of Biomedical Engineering, Science & Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
| | - Seena K Ajit
- Department of Pharmacology & Physiology, Drexel University College of Medicine, 245 North 15th Street, Mail Stop 488, Room 8223, Philadelphia, PA 19102, USA.
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347
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Harijan AK, Kalaiarasan R, Ghosh AK, Jain RP, Bera AK. The neuroprotective effect of short-chain fatty acids against hypoxia-reperfusion injury. Mol Cell Neurosci 2024:103972. [PMID: 39349151 DOI: 10.1016/j.mcn.2024.103972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 08/31/2024] [Accepted: 09/21/2024] [Indexed: 10/02/2024] Open
Abstract
Gut microbe-derived short-chain fatty acids (SCFAs) are known to have a profound impact on various brain functions, including cognition, mood, and overall neurological health. However, their role, if any, in protecting against hypoxic injury and ischemic stroke has not been extensively studied. In this study, we investigated the effects of two major SCFAs abundant in the gut, propionate (P) and butyrate (B), on hypoxia-reperfusion injury using a neuronal cell line and a zebrafish model. Neuro 2a (N2a) cells treated with P and B exhibited reduced levels of mitochondrial and cytosolic reactive oxygen species (ROS), diminished loss of mitochondrial membrane potential, suppressed caspase activation, and lower rates of cell death when exposed to CoCl2, a chemical commonly used to simulate hypoxia. Furthermore, adult zebrafish fed SCFA-supplemented feeds showed less susceptibility to hypoxic conditions compared to the control group, as indicated by multiple behavioral measures. Histological analysis of 2,3,5-Triphenyltetrazolium chloride (TTC) stained brain sections revealed less damage in the SCFA-fed group. We also found that Fatty Acid Binding Protein 7 (FABP7), also known as Brain Lipid Binding Protein (BLBP), a neuroprotective fatty acid binding protein, was upregulated in the brains of the SCFA-fed group. Additionally, when FABP7 was overexpressed in N2a cells, it protected the cells from injury caused by CoCl2 treatment. Overall, our data clearly demonstrate a neuroprotective role of P and B against hypoxic brain injury and suggest the potential of dietary supplementation with SCFAs to mitigate stroke-induced brain damage.
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Affiliation(s)
- Anjit K Harijan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Retnamony Kalaiarasan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Amit Kumar Ghosh
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Ruchi P Jain
- International Institute of Molecular and Cell Biology, Warsaw 02-109, Poland
| | - Amal Kanti Bera
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India.
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348
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Kim E, Moore AE, Dulnoan D, Hampson G. Effect of Fibroblast Growth Factor (FGF) 19 and 21 on Hip Geometry and Strength in Post-menopausal Osteoporosis (PMO). Calcif Tissue Int 2024:10.1007/s00223-024-01284-3. [PMID: 39341924 DOI: 10.1007/s00223-024-01284-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 09/05/2024] [Indexed: 10/01/2024]
Abstract
Fibroblast Growth Factor (FGF) receptor signalling is important for skeletal development. The FGF19 subfamily which includes FGF19 and FGF21 are involved in bone metabolism, although their effects on bone mineral density (BMD) and bone strength remain unclear. To further characterise the influence of these two factors on the skeleton, we studied the association between circulating concentrations of FGF19 and 21 with BMD and parameters of hip geometry and strength in post-menopausal osteoporosis (PMO). The study cohort consisted of 374 women aged (mean [SD]) 68.7[12.3] years with PMO. FGF19 and FGF21 were measured in serum by ELISA. BMD was measured at the lumbar spine (LS), total hip (TH) and femoral neck (FN) (n = 277) by dual energy X-ray absorptiometry (DXA) and hip structural analysis (HSA) parameters (n = 263) at the narrow neck of the femur (NN), Intertrochanter (IT) and Femoral shaft (FS) were derived from DXA scans. FGF19 and 21 were not associated with prevalent fractures or BMD when corrected for covariates; age, BMI, smoking habits and alcohol intake. Log-transformed FGF 21 was negatively associated with HSA parameters including Outer Diameter (OD) (p = 0.019), Cross-sectional area (CSA) (p = 0.01), cross-sectional moment of inertia (CSMI) (p = 0.011), Section modulus (Z) (p = 0.002) and cortical thickness (Co Th) (p = 0.026) at the IT only. CSA, CSMI, Z and Co Th were significantly lower (p < 0.05) in women with FGF21 concentrations greater than the median (> 103.5 pg/ml). Our data suggest that FGF 21 may have potentially adverse effects on the skeleton. Further characterisation is needed, particularly as FGF 21 analogues or agonists may be used to treat obesity-related metabolic disorders.
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Affiliation(s)
- EunJi Kim
- Department of Chemical Pathology/Metabolic Medicine, North Wing, St Thomas' Hospital, Lambeth Palace Road, London, SE1 7EH, UK
| | | | | | - Geeta Hampson
- Department of Chemical Pathology/Metabolic Medicine, North Wing, St Thomas' Hospital, Lambeth Palace Road, London, SE1 7EH, UK.
- Osteoporosis Unit, Guy's Hospital, London, UK.
- Department of Endocrinology, Metabolic Bone Clinic, St Thomas' Hospital, London, UK.
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349
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Weaver SR, Peralta-Herrera E, Torres HM, Jessen E, Bradley EW, Westendorf JJ. Phlpp1 alters the murine chondrocyte phospho-proteome during endochondral bone formation. Bone 2024:117265. [PMID: 39349089 DOI: 10.1016/j.bone.2024.117265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Revised: 09/19/2024] [Accepted: 09/25/2024] [Indexed: 10/02/2024]
Abstract
Appendicular skeletal growth and bone mass acquisition are controlled by a variety of growth factors, hormones, and mechanical forces in a dynamic process called endochondral ossification. In long bones, chondrocytes in the growth plate proliferate and undergo hypertrophy to drive bone lengthening and mineralization. Pleckstrin homology (PH) domain and leucine rich repeat phosphatase 1 and 2 (Phlpp1 and Phlpp2) are serine/threonine protein phosphatases that regulate cell proliferation, survival, and maturation via Akt, PKC, Raf1, S6k, and other intracellular signaling cascades. Germline deletion of Phlpp1 suppresses bone lengthening in growth plate chondrocytes. Here, we demonstrate that Phlpp2 does not regulate endochondral ossification, and we define the molecular differences between Phlpp1 and Phlpp2 in chondrocytes. Phlpp2-/- mice are phenotypically indistinguishable from their wildtype (WT) littermates, with similar bone length, bone mass, and growth plate dynamics. Deletion of Phlpp2 had moderate effects on the chondrocyte transcriptome and proteome compared to WT cells. By contrast, Phlpp1/2-/- (double knockout) mice resembled Phlpp1-/- mice phenotypically and molecularly, as the chondrocyte phospho-proteomes of Phlpp1-/- and Phlpp1/2-/- chondrocytes had similarities and were significantly different from WT and Phlpp2-/- chondrocyte phospho-proteomes. Data integration via multiparametric analysis showed that the transcriptome explained less variation in the data as a result of Phlpp1 or Phlpp2 deletion than proteome or phospho-proteome. Alterations in cell proliferation, collagen fibril organization, and Pdpk1 and Pak1/2 signaling pathways were identified in chondrocytes lacking Phlpp1, while cell cycle processes and Akt1 and Aurka signaling pathways were altered in chondrocytes lacking Phlpp2. These data demonstrate that Phlpp1, and to a lesser extent Phlpp2, regulate multiple and complex signaling cascades across the chondrocyte transcriptome, proteome, and phospho-proteome and that multi-omic data integration can reveal novel putative kinase targets that regulate endochondral ossification.
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Affiliation(s)
- Samantha R Weaver
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States of America
| | | | - Haydee M Torres
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States of America
| | - Erik Jessen
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, United States of America
| | - Elizabeth W Bradley
- Department of Orthopedics, School of Medicine, University of Minnesota, Minneapolis, MN, United States of America
| | - Jennifer J Westendorf
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States of America; Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, United States of America.
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350
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Rani M, Akhilesh, Chouhan D, Uniyal A, Tiwari V. Fecal Microbiota Transplantation-Mediated Rebalancing of the Gut-Brain Axis Alleviates Cisplatin-Induced Neuropathic Pain. ACS Chem Neurosci 2024. [PMID: 39329364 DOI: 10.1021/acschemneuro.4c00267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2024] Open
Abstract
Chemotherapy-induced neuropathic pain (CINP) presents a significant challenge in cancer treatment, necessitating novel therapeutic approaches. The intricate relationship between CINP and the gut-brain axis indicates a crucial role for the gut microbiota in pain modulation during cancer therapy. In this study, we investigated the effect of gut microbiota and their modulation on CINP in rats. Cisplatin administration (20 mg/kg, ip) disrupted the integrity of the blood-spinal cord barrier, as evidenced by reduced expression of tight junction proteins occludin and claudin-5 and increased leakage of pro-inflammatory cytokines into the spinal cord. Fecal microbiota transplantation (FMT, 0.5 mL of P.O.) from healthy rats over 21 days restored barrier integrity, as confirmed by Evan's blue assay. FMT intervention halted the progression of cisplatin-induced pain, demonstrated through a battery of pain assays assessing mechanical, thermal, and cold allodynia alongside hyperalgesia measurements. Additionally, FMT treatment reduced oxidative stress and modulated neuro-inflammatory markers, resulting in a rebalanced cytokine profile with decreased levels of neuro-inflammatory cytokines (IL-6 and TNFα) and increased expression of the anti-inflammatory cytokine IL-10. Gut microbiota-mediated IL-1β/NF-κB signaling emerged as a critical factor in leukocyte recruitment and microglial activation, highlighting the gut-brain axis as a key regulatory nexus in managing cisplatin-induced neuropathic pain. These findings underscore the therapeutic potential of targeting gut microbiota modulation as a promising strategy for alleviating CINP and improving the well-being of cancer patients undergoing chemotherapy.
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Affiliation(s)
- Mousmi Rani
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
| | - Akhilesh
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
| | - Deepak Chouhan
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
| | - Ankit Uniyal
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
| | - Vinod Tiwari
- Neuroscience and Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
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