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Kaneko R, Hirakawa R, Hijii S, Mori T, Katayama Y. Accurate evaluation of drug effect on the LDH activity of live cells: dual measurement of live cell number by fluorescent staining of nucleus and LDH activity by formazan. ANAL SCI 2024:10.1007/s44211-024-00631-6. [PMID: 39033093 DOI: 10.1007/s44211-024-00631-6] [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: 06/16/2024] [Accepted: 07/07/2024] [Indexed: 07/23/2024]
Abstract
Effect of drugs on the intracellular activity of lactate dehydrogenase (LDH) has been measured by using water-soluble tetrazolium (WST). Because the assay is usually conducted in the presence of dead cells, net activity of live cells is not evaluated. Here, we reported the assay of the net intracellular LDH activity of live cells by counting the live cells using fluorescent staining of nucleus. By using a deep red fluorescent dye, dual measurements of fluorescence signal of nucleus and absorbance of WST could be conducted with transparent 96-well-plates. We found that conventional assay in the presence of dead cells overestimate the effect of drugs on the LDH activity.
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Affiliation(s)
- Ryosuke Kaneko
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan
| | - Rui Hirakawa
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan
| | - Shoichi Hijii
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan
| | - Takeshi Mori
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan.
- Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan.
| | - Yoshiki Katayama
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan.
- Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan.
- Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan.
- Centre for Advanced Medicine Open Innovation, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan.
- Department of Biomedical Engineering, Chung Yuan Christian University, 200 Chung Pei Rd., Chung Li, 32023 ROC, Taiwan.
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Hameed A, Tariq M, Sadia S, Alam MR, Haider A, Wahedi HM. Aloesin-loaded chitosan/cellulose-based scaffold promotes skin tissue regeneration. Int J Biol Macromol 2024; 273:133030. [PMID: 38857730 DOI: 10.1016/j.ijbiomac.2024.133030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/14/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024]
Abstract
Skin wound healing and regeneration is very challenging across the world as simple or acute wounds can be transformed into chronic wounds or ulcers due to foreign body invasion, or diseases like diabetes or cancer. The study was designed to develop a novel bioactive scaffold, by loading aloesin to chitosan-coated cellulose scaffold, to cure full-thickness skin wounds. The physiochemical characterization of the scaffold was carried out using scanning electron microscopy (SEM) facilitated by energy-dispersive spectrophotometer (EDS), atomic force microscopy (AFM), and Fourier transform infrared spectroscopy (FTIR). The results indicated the successful coating of chitosan and aloesin on cellulose without any physical damage. The drug release kinetics confirmed the sustained release of aloesin by showing a cumulative release of up to 88 % over 24 h. The biocompatibility of the aloesin-loaded chitosan/cellulose (AlCsCFp) scaffold was evaluated by the WST-8 assay that confirmed the significantly increased adherence and proliferation of fibroblasts on the AlCsCFp scaffold. The in vivo wound healing study showed that both 0.05 % and 0.025 % AlCsCFp scaffolds have significantly higher wound closure rates (i.e. 88.2 % and 95.6 % approximately) as compared to other groups. This showed that novel composite scaffold has a wound healing ability. Furthermore, histological and gene expression analysis demonstrated that the scaffold also induced cell migration, angiogenesis, re-epithelialization, collagen deposition, and tissue granulation formation. Thus, it is concluded that the aloesin-loaded chitosan/cellulose-based scaffold has great therapeutic potential for being used in wound healing applications in the clinical setting in the future.
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Affiliation(s)
- Aasia Hameed
- Department of Biomedicine, Atta-ur-Rehman School of Applied Biosciences, National University of Sciences & Technology, Sector H-12, 44000 Islamabad, Pakistan; Department of Biological Sciences, National University of Medical Sciences, Abid Majeed Road, 46000 Rawalpindi, Pakistan
| | - Mehreen Tariq
- Department of Biological Sciences, National University of Medical Sciences, Abid Majeed Road, 46000 Rawalpindi, Pakistan
| | - Sobia Sadia
- Department of Biological Sciences, National University of Medical Sciences, Abid Majeed Road, 46000 Rawalpindi, Pakistan
| | - M Rizwan Alam
- Department of Biochemistry, Quaid-I-Azam University, Islamabad Capital Territory 45320, Pakistan
| | - Adnan Haider
- Department of Biological Sciences, National University of Medical Sciences, Abid Majeed Road, 46000 Rawalpindi, Pakistan
| | - Hussain Mustatab Wahedi
- Department of Biomedicine, Atta-ur-Rehman School of Applied Biosciences, National University of Sciences & Technology, Sector H-12, 44000 Islamabad, Pakistan.
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Vicente ED, Figueiredo D, Alves C. Toxicity of particulate emissions from residential biomass combustion: An overview of in vitro studies using cell models. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:171999. [PMID: 38554951 DOI: 10.1016/j.scitotenv.2024.171999] [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: 01/04/2024] [Revised: 03/07/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
This article aims to critically review the current state of knowledge on in vitro toxicological assessments of particulate emissions from residential biomass heating systems. The review covers various aspects of particulate matter (PM) toxicity, including oxidative stress, inflammation, genotoxicity, and cytotoxicity, all of which have important implications for understanding the development of diseases. Studies in this field have highlighted the different mechanisms that biomass combustion particles activate, which vary depending on the combustion appliances and fuels. In general, particles from conventional combustion appliances are more potent in inducing cytotoxicity, DNA damage, inflammatory responses, and oxidative stress than those from modern appliances. The sensitivity of different cell lines to the toxic effects of biomass combustion particles is also influenced by cell type and culture conditions. One of the main challenges in this field is the considerable variation in sampling strategies, sample processing, experimental conditions, assays, and extraction techniques used in biomass burning PM studies. Advanced culture systems, such as co-cultures and air-liquid interface exposures, can provide more accurate insights into the effects of biomass combustion particles compared to simpler submerged monocultures. This review provides critical insights into the complex field of toxicity from residential biomass combustion emissions, underscoring the importance of continued research and standardisation of methodologies to better understand the associated health hazards and to inform targeted interventions.
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Affiliation(s)
- E D Vicente
- Department of Environment and Planning, Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal
| | - D Figueiredo
- Department of Environment and Planning, Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal; Department of Biology, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal
| | - C Alves
- Department of Environment and Planning, Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal.
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Xiao B, Huang Z, Li L, Hou L, Yao D, Mo B. Paclitaxel inhibits proliferation by negatively regulating Cdk1-cell cycle axis in rat airway smooth muscle cells. J Asthma 2024:1-9. [PMID: 38696283 DOI: 10.1080/02770903.2024.2349599] [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: 01/02/2024] [Accepted: 04/25/2024] [Indexed: 05/04/2024]
Abstract
OBJECTIVE Paclitaxel exhibits outstanding biological activities in inhibiting cell proliferation and inducing cell apoptosis. However, the effects of paclitaxel on airway smooth muscle cells (ASMCs) have not been reported yet. The purpose of this study is to determine the effects of paclitaxel on the proliferation and apoptosis of ASMCs. METHODS Rat primary ASMCs were isolated and used in all the experiments. Cell Counting Kit-8 assay and Edu assay were used to analyze the cell viability and proliferation, respectively. Flow cytometry was used to detect the cell cycle and apoptosis. Quantitative real-time PCR (qRT-PCR), western blotting, and immunostaining were used to detect the expression of cyclin-dependent kinase 1 (Cdk1). RESULTS Our study showed that paclitaxel inhibits the proliferation of ASMCs in a dose- and time-gradient-dependent manner. Further study displayed that cell cycle is arrested at G2/M phase. And Cdk1 was dramatically down-regulated by paclitaxel treatment. Cell morphological analysis showed that ASMCs are elliptical with a larger surface area after paclitaxel treatment. Nucleus morphological analysis showed that the nuclei are in a diffuse state after paclitaxel treatment. However, paclitaxel did not induce the apoptosis of ASMCs. CONCLUSIONS Our study demonstrated that paclitaxel inhibits the proliferation of ASMCs at least partly by negatively regulating Cdk1-cell cycle axis.
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Affiliation(s)
- Bo Xiao
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Guilin Medical University, Guilin, China
- The Laboratory of Respiratory Disease, Affiliated Hospital of Guilin Medical University, Guilin, China
- Department of Pulmonary and Critical Care Medicine, Affiliated Hospital of Guilin Medical University, Guilin, China
- Laboratory of Basic Research on Respiratory Diseases, Guangxi Health Commission, Guilin Medical University, Guilin, China
| | - Zhiheng Huang
- The Laboratory of Respiratory Disease, Affiliated Hospital of Guilin Medical University, Guilin, China
- Department of Pulmonary and Critical Care Medicine, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Liangxian Li
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
| | - Lixia Hou
- The Laboratory of Respiratory Disease, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Dong Yao
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Guilin Medical University, Guilin, China
- Guangxi Clinical Research Center for Diabetes and Metabolic Diseases, Guangxi Health Commission Key Laboratory of Glucose and Lipid Metabolism Disorders, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
- Guangxi Key Laboratory of Metabolic Reprogramming and Intelligent Medical Engineering for Chronic Diseases, The Key Laboratory of Respiratory Diseases, Education Department of Guangxi Zhuang Autonomous Region, Guilin Medical University, Guilin, China
| | - Biwen Mo
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Guilin Medical University, Guilin, China
- Guangxi Clinical Research Center for Diabetes and Metabolic Diseases, Guangxi Health Commission Key Laboratory of Glucose and Lipid Metabolism Disorders, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
- Guangxi Key Laboratory of Metabolic Reprogramming and Intelligent Medical Engineering for Chronic Diseases, The Key Laboratory of Respiratory Diseases, Education Department of Guangxi Zhuang Autonomous Region, Guilin Medical University, Guilin, China
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Dai Y, Lin J, Chen X, Ren J, Wu C, Shen H, Li X, Yu J, Jiang B, Yu L. NAMPT/NAD +/PARP1 Pathway Regulates CFA-Induced Inflammatory Pain via NF-κB Signaling in Rodents. Adv Biol (Weinh) 2024; 8:e2400028. [PMID: 38463014 DOI: 10.1002/adbi.202400028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/26/2024] [Indexed: 03/12/2024]
Abstract
Emerging evidence has implicated nicotinamide adenine dinucleotide (NAD+) metabolism in various inflammatory diseases. In the study, the role of NAD+ metabolism in Complete Freund's Adjuvant (CFA)-evoked inflammatory pain and the underlying mechanisms are investigated. The study demonstrated that CFA induced upregulation of nicotinamide phosphoribosyltransferase (NAMPT) in dorsal root ganglia (DRG) without significant changes in the spinal cord. Inhibition of NAMPT expression by intrathecal injection of NAMPT siRNA alleviated CFA-induced pain-like behavior, decreased NAD+ contents in DRG, and lowered poly-(ADP-ribose) polymerase 1 (PARP1) activity levels. These effects are all reversed by the supplement of nicotinamide mononucleotide (NMN). Inhibition of PARP1 expression by intrathecal injection of PARP1 siRNA alleviated CFA-induced pain-like behavior, while elevated NAD+ levels of DRG. The analgesic effect of inhibiting NAMPT/NAD+/PARP1 axis can be attributed to the downregulation of the NF-κB/IL-1β inflammatory pathway. Double immunofluorescence staining showed that the expression of NAMPT/NAD+/PARP1 axis is restricted to DRG neurons. In conclusion, PARP1 activation in response to CFA stimulation, fueled by NAMPT-derived NAD+, mediates CFA-induced inflammatory pain through NF-κB/IL-1β inflammatory pathway.
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Affiliation(s)
- Yi Dai
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Jiaqi Lin
- East Hospital Affiliated to Tongji University, Shanghai, 200000, China
| | - Xiangde Chen
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Jinxuan Ren
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Chengwei Wu
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
- Lishui Municipal Central Hospital, Lishui, 323000, China
| | - Huihui Shen
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Xue Li
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Jing Yu
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Baochun Jiang
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Lina Yu
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, China
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Anagnostopoulos G, Saavedra E, Lambertucci F, Motiño O, Dimitrov J, Roiz-Valle D, Quesada V, Alvarez-Valadez K, Chen H, Sauvat A, Rong Y, Nogueira-Recalde U, Li S, Montégut L, Djavaheri-Mergny M, Castedo M, Lopez-Otin C, Maiuri MC, Martins I, Kroemer G. Inhibition of acyl-CoA binding protein (ACBP) by means of a GABA ARγ2-derived peptide. Cell Death Dis 2024; 15:249. [PMID: 38582872 PMCID: PMC10998878 DOI: 10.1038/s41419-024-06633-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 03/15/2024] [Accepted: 03/25/2024] [Indexed: 04/08/2024]
Abstract
Acyl-CoA binding protein (ACBP) encoded by diazepam binding inhibitor (DBI) is an extracellular inhibitor of autophagy acting on the gamma-aminobutyric acid A receptor (GABAAR) γ2 subunit (GABAARγ2). Here, we show that lipoanabolic diets cause an upregulation of GABAARγ2 protein in liver hepatocytes but not in other major organs. ACBP/DBI inhibition by systemically injected antibodies has been demonstrated to mediate anorexigenic and organ-protective, autophagy-dependent effects. Here, we set out to develop a new strategy for developing ACBP/DBI antagonists. For this, we built a molecular model of the interaction of ACBP/DBI with peptides derived from GABAARγ2. We then validated the interaction between recombinant and native ACBP/DBI protein and a GABAARγ2-derived eicosapeptide (but not its F77I mutant) by pull down experiments or surface plasmon resonance. The GABAARγ2-derived eicosapeptide inhibited the metabolic activation of hepatocytes by recombinant ACBP/DBI protein in vitro. Moreover, the GABAARγ2-derived eicosapeptide (but not its F77I-mutated control) blocked appetite stimulation by recombinant ACBP/DBI in vivo, induced autophagy in the liver, and protected mice against the hepatotoxin concanavalin A. We conclude that peptidomimetics disrupting the interaction between ACBP/DBI and GABAARγ2 might be used as ACBP/DBI antagonists. This strategy might lead to the future development of clinically relevant small molecules of the ACBP/DBI system.
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Affiliation(s)
- Gerasimos Anagnostopoulos
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Ester Saavedra
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Departamento de Bioquímica y Biología Molecular, Fisiología, Genética e Inmunología, Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Paris, Spain
| | - Flavia Lambertucci
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Omar Motiño
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Jordan Dimitrov
- Centre de Recherche des Cordeliers, INSERM, CNRS, Sorbonne Université, Université Paris Cité, Paris, France
| | - David Roiz-Valle
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
| | - Victor Quesada
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Karla Alvarez-Valadez
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Faculté de Médecine, Université de Paris Saclay, Kremlin Bicêtre, Paris, France
| | - Hui Chen
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Faculté de Médecine, Université de Paris Saclay, Kremlin Bicêtre, Paris, France
| | - Allan Sauvat
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Yan Rong
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Faculté de Médecine, Université de Paris Saclay, Kremlin Bicêtre, Paris, France
| | - Uxía Nogueira-Recalde
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de (INIBIC), Fundación Profesor Novoa Santos, A Coruña, Spain
| | - Sijing Li
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Faculté de Médecine, Université de Paris Saclay, Kremlin Bicêtre, Paris, France
| | - Léa Montégut
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Mojgan Djavaheri-Mergny
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Maria Castedo
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Carlos Lopez-Otin
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
- Facultad de Ciencias de la Vida y la Naturaleza, Universidad Nebrija, Madrid, Spain
| | - Maria Chiara Maiuri
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Department of Molecular Medicine and Medical Biotechnologies, University of Napoli Federico II, 80131, Naples, Italy
| | - Isabelle Martins
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France.
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France.
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.
- Institut du Cancer Paris CARPEM, Department of Biology, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.
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Joshi AS, Bapat MV, Singh P, Mijakovic I. Viridibacillus culture derived silver nanoparticles exert potent anticancer action in 2D and 3D models of lung cancer via mitochondrial depolarization-mediated apoptosis. Mater Today Bio 2024; 25:100997. [PMID: 38379934 PMCID: PMC10876681 DOI: 10.1016/j.mtbio.2024.100997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/03/2024] [Accepted: 02/09/2024] [Indexed: 02/22/2024] Open
Abstract
Lung cancer is one of the most commonly occurring cancer types that accounts for almost 2 million cases per year. Its resistance to anticancer drugs, failure of new molecules in clinical trials, severe side-effects of current treatments, and its recurrence limit the success of anticancer therapies. Nanotherapeutic agents offer several advantages over conventional anticancer therapies, including improved retention in tumors, specificity, and anticancer effects at lower concentrations, hence reducing the side-effects. Here, we have explored the anticancer activity of silver nanoparticles synthesized in Viridibacillus sp. enriched culture medium for the first time. Such green nanoparticles, synthesized by biological systems, are superior to chemically synthesized ones in terms of their environmental footprint and production cost, and have one crucial advantage of excellent stability owing to their biological corona. To assess anticancer activity of these nanoparticles, we used conventional 2D cultured A549 cells as well as 3D spheroids of A549 cells. In both models of lung cancer, our silver nanoparticles diminished cell proliferation, arrested DNA synthesis, and showed a dose dependent cytotoxic effect. The nanoparticles damaged the DNA and mitochondrial structures in both A549 cells and A549 spheroids, leading to mitochondrial depolarization and increased cell permeability. Low lethal median doses (LD50) for 2D cultured A549 cells (1 μg/ml) and for A549 spheroids (13 μg/ml) suggest that our nanoparticles are potent anticancer agents. We also developed in vitro tumor progression model and in vitro tumor size model using 3D spheroids to test anticancer potential of our nanoparticles which otherwise would require longer experimental duration along with large number of animals and trained personnel. In these models, our nanoparticles showed strong dose dependent anticancer activity. In case of in vitro tumor progression model, the A549 cells failed to form tight spheroidal mass and showed increased dead cell fraction since day 1 as compared to control. On the other hand, in case of in vitro tumor size model, the 4 and 8 μg/ml nanoparticle treatment led to reduction in spheroid size from 615 ± 53 μm to 440 ± 45 μm and 612 ± 44 μm to 368 ± 62 μm respectively, within the time span of 3 days post treatment. We believe that use of such novel experimental models offers excellent and fast alternative to in vivo studies, and to the best of our knowledge, this is the first report that gives proof-of-concept for use of such novel in vitro cancer models to test anticancer agents such as Viridibacilli culture derived silver nanoparticles. Based on our results, we propose that these nanoparticles offer an interesting alternative for anticancer therapies, especially if they can be combined with classical anticancer drugs.
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Affiliation(s)
- Abhayraj S. Joshi
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Mugdha V. Bapat
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Priyanka Singh
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Ivan Mijakovic
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
- Department of Biology and Biological Engineering, Division of Systems and Synthetic Biology, Chalmers University of Technology, Sweden
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8
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Zhu X, Wu J, Li S, Xiang L, Jin JM, Liang C, Tang SY. Artificial Biosynthetic Pathway for Efficient Synthesis of Vanillin, a Feruloyl-CoA-Derived Natural Product from Eugenol. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6463-6470. [PMID: 38501643 DOI: 10.1021/acs.jafc.3c08723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Eugenol, the main component of essential oil from the Syzygium aromaticum clove tree, has great potential as an alternative bioresource feedstock for biosynthesis purposes. Although eugenol degradation to ferulic acid was investigated, an efficient method for directly converting eugenol to targeted natural products has not been established. Herein we identified the inherent inhibitions by simply combining the previously reported ferulic acid biosynthetic pathway and vanillin biosynthetic pathway. To overcome this, we developed a novel biosynthetic pathway for converting eugenol into vanillin, by introducing cinnamoyl-CoA reductase (CCR), which catalyzes conversion of coniferyl aldehyde to feruloyl-CoA. This approach bypasses the need for two catalysts, namely coniferyl aldehyde dehydrogenase and feruloyl-CoA synthetase, thereby eliminating inhibition while simplifying the pathway. To further improve efficiency, we enhanced CCR catalytic efficiency via directed evolution and leveraged an artificialvanillin biosensor for high-throughput screening. Switching the cofactor preference of CCR from NADP+ to NAD+ significantly improved pathway efficiency. This newly designed pathway provides an alternative strategy for efficiently biosynthesizing feruloyl-CoA-derived natural products using eugenol.
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Affiliation(s)
- Xiaochong Zhu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jieyuan Wu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shizhong Li
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - La Xiang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jian-Ming Jin
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing 100048, China
| | - Chaoning Liang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shuang-Yan Tang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
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9
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Dong Y, Wang X, Wei L, Liu Z, Chu X, Xiong W, Liu W, Li X. The Effectiveness of Four Nicotinamide Adenine Dinucleotide (NAD +) Precursors in Alleviating the High-Glucose-Induced Damage to Hepatocytes in Megalobrama amblycephala: Evidence in NAD + Homeostasis, Sirt1/3 Activation, Redox Defense, Inflammatory Response, Apoptosis, and Glucose Metabolism. Antioxidants (Basel) 2024; 13:385. [PMID: 38671834 PMCID: PMC11047577 DOI: 10.3390/antiox13040385] [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: 02/26/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
The administration of NAD+ precursors is a potential approach to protect against liver damage and metabolic dysfunction. However, the effectiveness of different NAD+ precursors in alleviating metabolic disorders is still poorly elucidated. The current study was performed to compare the effectiveness of four different NAD+ precursors, including nicotinic acid (NA), niacinamide (NAM), nicotinamide riboside (NR), and nicotinamide mononucleotide (NMN) in alleviating high-glucose-induced injury to hepatocytes in a fish model, Megalobrama amblycephala. An in vitro high-glucose model was successfully established to mimic hyperglycemia-induced damage to the liver, which was evidenced by the reduced cell viability, the increased transaminase activity, and the depletion of cellular NAD+ concentration. The NAD+ precursors all improved cell viability, with the maximal effect observed in NR, which also had the most potent NAD+ boosting capacity and a significant Sirt1/3 activation effect. Meanwhile, NR presented distinct and superior effects in terms of anti-oxidative stress, inflammation inhibition, and anti-apoptosis compared with NA, NAM, and NMN. Furthermore, NR could effectively benefit glucose metabolism by activating glucose transportation, glycolysis, glycogen synthesis and the pentose phosphate pathway, as well as inhibiting gluconeogenesis. Moreover, an oral gavage test confirmed that NR presented the most potent effect in increasing hepatic NAD+ content and the NAD+/NADH ratio among four NAD+ precursors. Together, the present study results demonstrated that NR is most effective in attenuating the high-glucose-induced injury to hepatocytes in fish compared to other NAD+ precursors.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiangfei Li
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No. 1 Weigang Road, Nanjing 210095, China
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10
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Fan J, Schiemer T, Vaska A, Jahed V, Klavins K. Cell via Cell Viability Assay Changes Cellular Metabolic Characteristics by Intervening with Glycolysis and Pentose Phosphate Pathway. Chem Res Toxicol 2024; 37:208-211. [PMID: 38191130 PMCID: PMC10880084 DOI: 10.1021/acs.chemrestox.3c00339] [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: 10/25/2023] [Revised: 12/07/2023] [Accepted: 12/14/2023] [Indexed: 01/10/2024]
Abstract
The Cell Counting Kit-8 (CCK-8) cell viability assay, also known as WST-8, is widely recognized for its nontoxic nature, making it suitable for further studies on treated cells. This practice is commonly observed in the field of tissue engineering. While live/dead imaging may not readily reveal macroscopic differences, our investigation has uncovered significant intracellular metabolic changes. Notably, we observed substantial down-regulation of metabolites within the glycolysis and pentose phosphate pathways. These metabolic alterations predominantly affect energy metabolism and may potentially impact the cellular redox environment. In light of these findings, we strongly recommend that researchers exercise caution when using cells treated with CCK-8 in subsequent experiments.
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Affiliation(s)
- Jingzhi Fan
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre, Institute
of General Chemical Engineering, Faculty of Materials Science and
Applied Chemistry, Riga Technical University, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters at Riga Technical
University, Riga LV-1048, Latvia
| | - Theresa Schiemer
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre, Institute
of General Chemical Engineering, Faculty of Materials Science and
Applied Chemistry, Riga Technical University, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters at Riga Technical
University, Riga LV-1048, Latvia
- Medical
University of Innsbruck, Innsbruck 6020, Austria
| | - Annija Vaska
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre, Institute
of General Chemical Engineering, Faculty of Materials Science and
Applied Chemistry, Riga Technical University, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters at Riga Technical
University, Riga LV-1048, Latvia
| | - Vahid Jahed
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre, Institute
of General Chemical Engineering, Faculty of Materials Science and
Applied Chemistry, Riga Technical University, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters at Riga Technical
University, Riga LV-1048, Latvia
| | - Kristaps Klavins
- Rudolfs
Cimdins Riga Biomaterials Innovations and Development Centre, Institute
of General Chemical Engineering, Faculty of Materials Science and
Applied Chemistry, Riga Technical University, Riga LV-1007, Latvia
- Baltic
Biomaterials Centre of Excellence, Headquarters at Riga Technical
University, Riga LV-1048, Latvia
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11
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Ishima T, Kimura N, Kobayashi M, Nagai R, Osaka H, Aizawa K. A Simple, Fast, Sensitive LC-MS/MS Method to Quantify NAD(H) in Biological Samples: Plasma NAD(H) Measurement to Monitor Brain Pathophysiology. Int J Mol Sci 2024; 25:2325. [PMID: 38397001 PMCID: PMC10888655 DOI: 10.3390/ijms25042325] [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: 01/19/2024] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Nicotinamide adenine dinucleotide (NAD) is a cofactor in redox reactions and an essential mediator of energy metabolism. The redox balance between NAD+ and NADH affects various diseases, cell differentiation, and aging, and in recent years there has been a growing need for measurement techniques with improved accuracy. However, NAD(H) measurements, representing both NAD+ and NADH, have been limited by the compound's properties. We achieved highly sensitive simultaneous measurement of NAD+ and NADH under non-ion pairing, mobile phase conditions of water, or methanol containing 5 mM ammonium acetate. These were achieved using a simple pre-treatment and 7-min analysis time. Use of the stable isotope 13C5-NAD+ as an internal standard enabled validation close to BMV criteria and demonstrated the robustness of NAD(H) determination. Measurements using this method showed that brain NAD(H) levels correlate strongly with plasma NAD(H) levels in the same mouse, indicating that NAD(H) concentrations in brain tissue are reflected in plasma. As NAD(H) is involved in various neurodegenerative diseases and cerebral ischemia, as well as brain diseases such as mitochondrial myopathies, monitoring changes in NADH levels in plasma after drug administration will be useful for development of future diagnostics and therapeutics.
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Affiliation(s)
- Tamaki Ishima
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, Shimotsuke 329-0498, Japan; (T.I.); (N.K.)
| | - Natsuka Kimura
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, Shimotsuke 329-0498, Japan; (T.I.); (N.K.)
| | - Mizuki Kobayashi
- Department of Pediatrics, Jichi Medical University, Shimotsuke 329-0498, Japan; (M.K.); (H.O.)
| | - Ryozo Nagai
- Jichi Medical University, Shimotsuke 329-0498, Japan;
| | - Hitoshi Osaka
- Department of Pediatrics, Jichi Medical University, Shimotsuke 329-0498, Japan; (M.K.); (H.O.)
| | - Kenichi Aizawa
- Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, Shimotsuke 329-0498, Japan; (T.I.); (N.K.)
- Clinical Pharmacology Center, Jichi Medical University Hospital, Shimotsuke 329-0498, Japan
- Division of Translational Research, Clinical Research Center, Jichi Medical University Hospital, Shimotsuke 329-0498, Japan
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12
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Pang Z, Li S, Wang S, Cai Z, Zhang S, Wan C, Wang J, Li Y, Chen P, Liu BF. Controlled-diffusion centrifugal microfluidic for rapid antibiotic susceptibility testing. Anal Chim Acta 2024; 1287:342033. [PMID: 38182334 DOI: 10.1016/j.aca.2023.342033] [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: 09/13/2023] [Revised: 11/11/2023] [Accepted: 11/13/2023] [Indexed: 01/07/2024]
Abstract
The abuse of antibiotics has become a global public safety issue, leading to the development of antimicrobial resistance (AMR). The development of antimicrobial susceptibility testing (AST) is crucial in reducing the growth of AMR. However, traditional AST methods are time-consuming (e.g., 24-72 h), labor-intensive, and costly. Here, we propose a controlled-diffusion centrifugal microfluidic platform (CCM) for rapid AST to obtain highly precise minimum inhibitory concentration (MIC) values. Antibiotic concentration gradients are generated by controlled moving and diffusing of antibiotic and buffer solution along the main microchannel within 3 min. The solution and bacterial suspension are then injected into the outermost reaction chamber by simple centrifugation. The CCM successfully determined the MIC for three commonly used antibiotics in clinical settings within 4-9 h. To further enhance practicality, reduce costs, and meet point-of-care testing demands, we have developed an integrated mobile detection platform for automated MIC value acquisition. The proposed CCM is a simple, low-cost, and portable method for rapid AST with broad clinical and in vitro applications.
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Affiliation(s)
- Zheng Pang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shunji Li
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shangang Wang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zonglin Cai
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shuo Zhang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Chao Wan
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jieqing Wang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yiwei Li
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Peng Chen
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Bi-Feng Liu
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
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13
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Mao J, Zhang M, Dai W, Fu C, Wang Z, Wang X, Yao Q, Kong L, Qin J. Metabolic perturbation of Streptomyces albulus by introducing NADP-dependent glyceraldehyde 3-phosphate dehydrogenase. Front Microbiol 2024; 15:1328321. [PMID: 38328422 PMCID: PMC10847347 DOI: 10.3389/fmicb.2024.1328321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/08/2024] [Indexed: 02/09/2024] Open
Abstract
The available resources of Streptomyces represent a valuable repository of bioactive natural products that warrant exploration. Streptomyces albulus is primarily utilized in the industrial synthesis of ε-poly-L-lysine (ε-PL). In this study, the NADP-dependent glyceraldehyde 3-phosphate dehydrogenase (GapN) from Streptococcus mutans was heterologously expressed in S. albulus CICC11022, leading to elevated intracellular NADPH levels and reduced NADH and ATP concentrations. The resulting perturbation of S. albulus metabolism was comprehensively analyzed using transcriptomic and metabolomic methodologies. A decrease in production of ε-PL was observed. The expression of gapN significantly impacted on 23 gene clusters responsible for the biosynthesis of secondary metabolites. A comprehensive analysis revealed a total of 21 metabolites exhibiting elevated levels both intracellularly and extracellularly in the gapN expressing strain compared to those in the control strain. These findings underscore the potential of S. albulus to generate diverse bioactive natural products, thus offering valuable insights for the utilization of known Streptomyces resources through genetic manipulation.
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Affiliation(s)
| | | | | | | | | | | | | | - Linghui Kong
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Jiayang Qin
- School of Pharmacy, Binzhou Medical University, Yantai, China
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14
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Takeo T, Miyake M, Mizuno H. Neuroprotective Effects of Probucol against Rotenone-Induced Toxicity via Suppression of Reactive Oxygen Species Production in SH-SY5Y Cells. Biol Pharm Bull 2024; 47:1154-1162. [PMID: 38880623 DOI: 10.1248/bpb.b24-00099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Probucol is a hyperlipidemic drug with antioxidant properties. It has been reported to prevent mitochondrial dysfunction, reduce oxidative stress, and suppress neurotoxicity in neurodegenerative disease models, including Parkinson's disease models. However, the molecular mechanisms underlying the neuroprotective effects of probucol have been not examined yet. Thus, in this study, we investigated whether probucol can alleviate the effects of a mitochondrial complex I inhibitor, rotenone, on a human neuroblastoma cell line (SH-SY5Y). We evaluated the cell viability and cytotoxicity and apoptosis rates of SH-SY5Y cells treated with rotenone and probucol or edaravone, a known free-radical scavenger. Subsequently, mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) levels in the cells were evaluated to determine the effects of probucol on mitochondrial function. We found that rotenone caused cytotoxicity, cell apoptosis, and mitochondrial dysfunction, enhanced ROS generation, and impaired MMP. However, probucol could inhibit this rotenone-induced decrease in cell viability, MMP loss, intracellular ROS generation, and apoptosis. These results suggest that probucol exerts neuroprotective effects via MMP stabilization and the inhibition of ROS generation. Additionally, this effect of probucol was equal to or greater than and more persistent than that of edaravone. Thus, we believe probucol may be a promising drug for the treatment of neurodegenerative diseases, such as Parkinson's and Alzheimer's diseases.
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Affiliation(s)
- Tsugumi Takeo
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University
| | | | - Hideya Mizuno
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University
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15
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Hu Y, Tang H, Xu N, Kang X, Wu W, Shen C, Lin J, Bao Y, Jiang X, Luo Z. Adhesive, Flexible, and Fast Degradable 3D-Printed Wound Dressings with a Simple Composition. Adv Healthc Mater 2024; 13:e2302063. [PMID: 37916920 DOI: 10.1002/adhm.202302063] [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: 07/01/2023] [Revised: 09/15/2023] [Indexed: 11/03/2023]
Abstract
3D printing technology has revolutionized the field of wound dressings, offering tailored solutions with mechanical support to facilitate wound closure. In addition to personalization, the intricate nature of the wound healing process requires wound dressing materials with diverse properties, such as moisturization, flexibility, adhesion, anti-oxidation and degradability. Unfortunately, current materials used in digital light processing (DLP) 3D printing have been inadequate in meeting these crucial criteria. This study introduces a novel DLP resin that is biocompatible and consists of only three commonly employed non-toxic compounds in biomaterials, that is, dopamine, poly(ethylene glycol) diacrylate, and N-vinylpyrrolidone. Simple as it is, this material system fulfills all essential functions for effective wound healing. Unlike most DLP resins that are non-degradable and rigid, this material exhibits tunable and rapid degradation kinetics, allowing for complete hydrolysis within a few hours. Furthermore, the high flexibility enables conformal application of complex dressings in challenging areas such as finger joints. Using a difficult-to-heal wound model, the manifold positive effects on wound healing in vivo, including granulation tissue formation, inflammation regulation, and vascularization are substantiated. The simplicity and versatility of this material make it a promising option for personalized wound care, holding significant potential for future translation.
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Affiliation(s)
- Yu Hu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Hao Tang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Nan Xu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Xiaowo Kang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Weijun Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Chuhan Shen
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Junsheng Lin
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Yinyin Bao
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Xingyu Jiang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Zhi Luo
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
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16
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Ledesma F, Nishitani S, Cunningham FJ, Hubbard JD, Yim D, Lui A, Chio L, Murali A, Landry MP. Covalent Attachment of Horseradish Peroxidase to Single-Walled Carbon Nanotubes for Hydrogen Peroxide Detection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.14.571773. [PMID: 38168430 PMCID: PMC10760104 DOI: 10.1101/2023.12.14.571773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Single-walled carbon nanotubes (SWCNTs) are desirable nanoparticles for sensing biological analytes due to their photostability and intrinsic near-infrared fluorescence. Previous strategies for generating SWCNT nanosensors have leveraged nonspecific adsorption of sensing modalities to the hydrophobic SWCNT surface that often require engineering new molecular recognition elements. An attractive alternate strategy is to leverage pre-existing molecular recognition of proteins for analyte specificity, yet attaching proteins to SWCNT for nanosensor generation remains challenging. Towards this end, we introduce a generalizable platform to generate protein-SWCNT-based optical sensors and use this strategy to synthesize a hydrogen peroxide (H 2 O 2 ) nanosensor by covalently attaching horseradish peroxidase (HRP) to the SWCNT surface. We demonstrate a concentration-dependent response to H 2 O 2 , confirm the nanosensor can image H 2 O 2 in real-time, and assess the nanosensor's selectivity for H 2 O 2 against a panel of biologically relevant analytes. Taken together, these results demonstrate successful covalent attachment of enzymes to SWCNTs while preserving both intrinsic SWCNT fluorescence and enzyme function. We anticipate this platform can be adapted to covalently attach other proteins of interest including other enzymes for sensing or antibodies for targeted imaging and cargo delivery.
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17
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Ayaz S, Üzer A, Dilgin Y, Apak MR. Fabrication of a Novel Optical Glucose Biosensor Using Copper(II) Neocuproine as a Chromogenic Oxidant and Glucose Dehydrogenase-Immobilized Magnetite Nanoparticles. ACS OMEGA 2023; 8:47163-47172. [PMID: 38107897 PMCID: PMC10719923 DOI: 10.1021/acsomega.3c07181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/11/2023] [Accepted: 11/20/2023] [Indexed: 12/19/2023]
Abstract
This study describes a novel optical glucose biosensor based on a colorimetric reaction between reduced nicotinamide adenine dinucleotide (NADH) and a copper(II) neocuproine complex ([Cu(Nc)2]2+) as a chromogenic oxidant. An enzymatic reaction takes place between glucose and glucose dehydrogenase (GDH)-chitosan (CS) immobilized on silanized magnetite nanoparticles (CS@SiO2@Fe3O4) in the presence of coenzyme NAD+. The oxidation of glucose to gluconolactone via the immobilized enzyme is coupled with the reduction of NAD+ to NADH at the same time. After the separation of GDH-immobilized SiO2@Fe3O4 with a magnet, the enzymatically produced NADH chemically reduces the chromogenic oxidant cupric neocuproine to the cuprous chelate. Thus, the glucose biosensor is fabricated based on the measurement of the absorbance of the formed yellow-orange complex ([Cu(Nc)2]+) at 450 nm. The obtained results show that the colorimetric biosensor has a wide linear response range for glucose, between 1.0 and 150.0 μM under optimized conditions. The limit of detection and limit of quantification were found to be 0.31 and 1.02 μM, respectively. The selectivity properties of the fabricated biosensor were tested with various interfering species. This biosensor was applied to various samples, and the obtained results suggest that the fabricated optical biosensor can be successfully used for the selective and sensitive determination of glucose in real samples.
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Affiliation(s)
- Selen Ayaz
- Faculty
of Science, Department of Chemistry, Canakkale
Onsekiz Mart University, Canakkale 17100, Turkey
| | - Ayşem Üzer
- Faculty
of Engineering, Department of Chemistry, İstanbul University-Cerrahpaşa, İstanbul-Avcılar 34320, Turkey
| | - Yusuf Dilgin
- Faculty
of Science, Department of Chemistry, Canakkale
Onsekiz Mart University, Canakkale 17100, Turkey
| | - M. Reşat Apak
- Faculty
of Engineering, Department of Chemistry, İstanbul University-Cerrahpaşa, İstanbul-Avcılar 34320, Turkey
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18
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Liu MM, Yang YJ, Guo ZZ, Zhong Y, Lei Y, Liu AL. A dual-readout sensing platform for the evaluation of cell viability integrating with optical and digital signals based on a closed bipolar electrode. Talanta 2023; 265:124881. [PMID: 37390672 DOI: 10.1016/j.talanta.2023.124881] [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: 12/05/2022] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/02/2023]
Abstract
Cell viability is essential for predicting drug toxicity and assessing drug effects in drug screening. However, the over/underestimation of cell viability measured by traditional tetrazolium colorimetric assays is inevitable in cell-based experiments. Hydrogen peroxide (H2O2) secreted by living cells may provide more comprehensive information about the cell state. Hence, it is significant to develop a simple and rapid approach for evaluating cell viability by measuring the excreted H2O2. In this work, we developed a dual-readout sensing platform based on optical and digital signals by integrating a light emitting diode (LED) and a light dependent resistor (LDR) into a closed split bipolar electrode (BPE), denoted as BP-LED-E-LDR, for evaluating cell viability by measuring the H2O2 secreted from living cells in drug screening. Additionally, the customized three-dimensional (3D) printed components were designed to adjust the distance and angle between the LED and LDR, achieving stable, reliable and highly efficient signal transformation. It only took 2 min to obtain response results. For measuring the exocytosis H2O2 from living cells, we observed a good linear relationship between the visual/digital signal and logarithmic function of MCF-7 cell counts. Furthermore, the fitted half inhibitory concentration curve of MCF-7 to doxorubicin hydrochloride obtained by the BP-LED-E-LDR device revealed a nearly identical tendency with the cell counting kit-8 assay, providing an attainable, reusable, and robust analytical strategy for evaluating cell viability in drug toxicology research.
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Affiliation(s)
- Meng-Meng Liu
- Department of Pharmaceutical Analysis, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, The School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Yuan-Jie Yang
- Department of Pharmaceutical Analysis, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, The School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Zi-Zhen Guo
- Department of Pharmaceutical Analysis, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, The School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Yu Zhong
- Department of Pharmaceutical Analysis, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, The School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Yun Lei
- Department of Pharmaceutical Analysis, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, The School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China.
| | - Ai-Lin Liu
- Department of Pharmaceutical Analysis, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, The School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China.
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19
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Buonvino S, Arciero I, Martinelli E, Seliktar D, Melino S. Modelling the disease: H 2S-sensitivity and drug-resistance of triple negative breast cancer cells can be modulated by embedding in isotropic micro-environment. Mater Today Bio 2023; 23:100862. [PMID: 38046276 PMCID: PMC10689286 DOI: 10.1016/j.mtbio.2023.100862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/26/2023] [Accepted: 11/09/2023] [Indexed: 12/05/2023] Open
Abstract
Three-dimensional (3D) cell culture systems provide more physiologically relevant information, representing more accurately the actual microenvironment where cells reside in tissues. However, the differences between the tissue culture plate (TCP) and 3D culture systems in terms of tumour cell growth, proliferation, migration, differentiation and response to the treatment have not been fully elucidated. Tumoroid microspheres containing the MDA-MB 231 breast cancer cell line were prepared using either tunable PEG-fibrinogen (PFs) or tunable PEG-silk fibroin (PSFs) hydrogels, respectively named MDAPFs and MDAPSFs. The cancer cells in the tumoroids showed changes both in globular morphology and at the protein expression level. A decrease of both Histone H3 acetylation and cyclin D1 expression in all 3D systems, compared to the 2D cell culture, was detected in parallel to changes of the matrix stiffness. The effects of a glutathionylated garlic extract (GSGa), a slow H2S-releasing donor, were investigated on both tumoroid systems. A pro-apoptotic effect of GSGa on tumour cell growth in 2D culture was observed as opposed to a pro-proliferative effect apparent in both MDAPFs and MDAPSFs. A dedicated ad hoc 3D cell migration chip was designed and optimized for studying tumour cell invasion in a gel-in-gel configuration. An anti-cell-invasion effect of the GSGa was observed in the 2D cell culture, whereas a pro-migratory effect in both MDAPFs and MDAPSFs was observed in the 3D cell migration chip assay. An increase of cyclin D1 expression after GSGa treatment was observed in agreement with an increase of the cell invasion index. Our results suggest that the "dimensionality" and the stiffness of the 3D cell culture milieu can change the response to both the gasotransmitter H2S and doxorubicin due to differences in both H2S diffusion and changes in protein expression. Moreover, we uncovered a direct relation between the cyclin D1 expression and the stiffness of the 3D cell culture milieu, suggesting the potential causal involvement of the cyclin D1 as a bio-marker for sensitivity of the tumour cells to their matrix stiffness. Therefore, our hydrogel-based tumoroids represent a valid tunable model for studying the physically induced transdifferentiation (PiT) of cancer cells and as a more reliable and predictive in vitro screening platform to investigate the effects of anti-tumour drugs.
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Affiliation(s)
- Silvia Buonvino
- Department of Chemical Sciences and Technologies, University of Rome “Tor Vergata”, via della Ricerca Scientifica, 00133, Rome, Italy
| | - Ilaria Arciero
- Department of Chemical Sciences and Technologies, University of Rome “Tor Vergata”, via della Ricerca Scientifica, 00133, Rome, Italy
| | - Eugenio Martinelli
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
- Interdisciplinary Center for Advanced Studies on Lab-on -Chip and Organ-on-Chip Applications, University of Rome Tor Vergata, Rome, Italy
| | - Dror Seliktar
- Department of Biomedical Engineering, Technion Israel Institute of Technology, 3200003, Haifa, Israel
| | - Sonia Melino
- Department of Chemical Sciences and Technologies, University of Rome “Tor Vergata”, via della Ricerca Scientifica, 00133, Rome, Italy
- NAST Centre, University of Rome ‘Tor Vergata’, Rome, Italy
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20
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Munyayi TA, Mulder DW, Conradie EH, Johannes Smit F, Vorster BC. Quantitative Galactose Colorimetric Competitive Assay Based on Galactose Dehydrogenase and Plasmonic Gold Nanostars. BIOSENSORS 2023; 13:965. [PMID: 37998140 PMCID: PMC10669336 DOI: 10.3390/bios13110965] [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: 10/08/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023]
Abstract
We describe a competitive colorimetric assay that enables rapid and sensitive detection of galactose and reduced nicotinamide adenine dinucleotide (NADH) via colorimetric readouts and demonstrate its usefulness for monitoring NAD+-driven enzymatic reactions. We present a sensitive plasmonic sensing approach for assessing galactose concentration and the presence of NADH using galactose dehydrogenase-immobilized gold nanostars (AuNS-PVP-GalDH). The AuNS-PVP-GalDH assay remains turquoise blue in the absence of galactose and NADH; however, as galactose and NADH concentrations grow, the reaction well color changes to a characteristic red color in the presence of an alkaline environment and a metal ion catalyst (detection solution). As a result, when galactose is sensed in the presence of H2O2, the colored response of the AuNS-PVP-GalDH assay transforms from turquoise blue to light pink, and then to wine red in a concentration-dependent manner discernible to the human eye. This competitive AuNS-PVP-GalDH assay could be a viable analytical tool for rapid and convenient galactose quantification in resource-limited areas.
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Affiliation(s)
| | - Danielle Wingrove Mulder
- Center for Human Metabolomics, North-West University Potchefstroom Campus, Potchefstroom 2531, South Africa; (D.W.M.); (E.H.C.); (B.C.V.)
| | - Engela Helena Conradie
- Center for Human Metabolomics, North-West University Potchefstroom Campus, Potchefstroom 2531, South Africa; (D.W.M.); (E.H.C.); (B.C.V.)
| | - Frans Johannes Smit
- Research Focus Area for Chemical Resource Beneficiation, North-West University, Potchefstroom 2520, South Africa;
| | - Barend Christiaan Vorster
- Center for Human Metabolomics, North-West University Potchefstroom Campus, Potchefstroom 2531, South Africa; (D.W.M.); (E.H.C.); (B.C.V.)
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21
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Munyayi TA, Mulder DW, Conradie EH, Vorster BC. Feasibility of NAD(P)/NAD(P)H as redox agents in enzymatic plasmonic gold nanostar assays for galactose quantification. ROYAL SOCIETY OPEN SCIENCE 2023; 10:230825. [PMID: 37830025 PMCID: PMC10565372 DOI: 10.1098/rsos.230825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/12/2023] [Indexed: 10/14/2023]
Abstract
Plasmonic colorimetric sensors have emerged as powerful analytical tools in biochemistry due to their localized surface plasmon resonance extinction in the visible range. Here, we describe the feasibility of NAD(P)/NAD(P)H as redox agents in enzymatic plasmonic gold nanostar (AuNS) assays for galactose quantification using three model enzymes, GalDH, AR and GalOx, immobilized separately on polyvinylpyrrolidone-capped AuNS scaffolds. These highly specific, sensitive and selective bioassays induce the transformation of AuNS into quasi-spherical nanoparticles during the biorecognition of galactose in water and synthetic blood matrices. As a result, using our inexpensive and simple AuNS plasmon bioassays, the presence of galactose may be detected spectrophotometrically and by the naked eye.
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Affiliation(s)
- Tozivepi Aaron Munyayi
- Centre For Human Metabolomics, Department of Biochemistry, North West University Potchefstroom, 11 Hoffman Street, Potchefstroom 2531, South Africa
| | - Danielle Wingrove Mulder
- Centre For Human Metabolomics, Department of Biochemistry, North West University Potchefstroom, 11 Hoffman Street, Potchefstroom 2531, South Africa
| | - Engela Helena Conradie
- Centre For Human Metabolomics, Department of Biochemistry, North West University Potchefstroom, 11 Hoffman Street, Potchefstroom 2531, South Africa
| | - Barend Christiaan Vorster
- Centre For Human Metabolomics, Department of Biochemistry, North West University Potchefstroom, 11 Hoffman Street, Potchefstroom 2531, South Africa
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22
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Yong PYA, Yip AJW, Islam F, Hong HJ, Teh YE, Tham CL, Tan JW. The anti-allergic potential of stingless bee honey from different botanical sources via modulation of mast cell degranulation. BMC Complement Med Ther 2023; 23:307. [PMID: 37667314 PMCID: PMC10476411 DOI: 10.1186/s12906-023-04129-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 08/16/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Allergy is an inflammatory disorder affecting around 20% of the global population. The adverse effects of current conventional treatments give rise to the increased popularity of using natural food products as complementary and alternative medicine against allergic diseases. Stingless bee honey, commonly known as Kelulut honey (KH) in Malaysia, has been used locally as a traditional remedy to relieve cough and asthma. This study evaluated the anti-allergic potential of KH collected from four different botanical sources on phorbol ester 12-myristate-3-acetate and calcium ionophore-activated human mast cells. METHODS The present study examined the inhibitory effects of all collected honey on the release of selected inflammatory mediators, such as tumor necrosis factor-α (TNF-α), interleukin (IL)-4, IL-6, IL-8, histamine, and β-hexosaminidase in an activated HMC. Besides that, all honey's total phenolic content (TPC) was also examined, followed by using liquid chromatography with tandem mass spectrometry (LC-MS/MS) to identify the phytochemicals in the honey. Further examination of the identified phytochemicals on their potential interaction with selected signaling molecules in an activated mast cell was conducted using computational methods. RESULTS The results indicated that there were significant inhibitory effects on all selected inflammatory mediators' release by KH sourced from bamboo (BH) and rubber tree (RH) at 0.5% and 1%, but not KH sourced from mango (AH) and noni (EH). BH and RH were found to have higher TPC values and were rich in their phytochemical profiles based on the LC-MS/MS results. Computational studies were employed to determine the possible molecular target of KH through molecular docking using HADDOCK and PRODIGY web servers. CONCLUSIONS In short, the results indicated that KH possesses anti-allergic effects towards an activated HMC, possibly by targeting downstream MAPKs. However, their anti-allergic effects may vary according to their botanical sources. Nevertheless, the present study has provided insight into the potential application of stingless bee honey as a complementary and alternative medicine to treat various allergic diseases.
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Affiliation(s)
- Poi Yi Aw Yong
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Subang Jaya, 47500, Selangor, Malaysia
| | - Ashley Jia Wen Yip
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Subang Jaya, 47500, Selangor, Malaysia
| | - Fahmida Islam
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Subang Jaya, 47500, Selangor, Malaysia
- Australian Regenerative Medicine Institute, Monash University, Clayton, 3800, VIC, Australia
| | - Hui Jing Hong
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Subang Jaya, 47500, Selangor, Malaysia
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Pulau Pinang, 11800, Malaysia
| | - Yi En Teh
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Subang Jaya, 47500, Selangor, Malaysia
| | - Chau Ling Tham
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia.
- Natural Medicines and Products Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia.
| | - Ji Wei Tan
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Subang Jaya, 47500, Selangor, Malaysia.
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23
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Chang CH, Wang CL, Li BR. Rapid detection of live bacteria in water using nylon filter membrane-integrated centrifugal microfluidics. Biosens Bioelectron 2023; 236:115403. [PMID: 37271096 DOI: 10.1016/j.bios.2023.115403] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/15/2023] [Indexed: 06/06/2023]
Abstract
Water is one of the most indispensable elements for human beings. People can live without food for a couple of weeks but cannot live without water for a couple of days. Unfortunately, drinking water is not always safe around the world; in many areas, the water for drinking could be contaminated with various microbes. However, the total viable microbe count in water still relies on culture-based methods in laboratories. Therefore, in this work, we report a novel, simple, and highly efficient strategy to detect live bacteria in water via a nylon membrane-integrated centrifugal microfluidic device. A handheld fan and a rechargeable hand warmer were utilized as the centrifugal rotor and the heat resource for reactions, respectively. The bacteria in water can be rapidly concentrated >500-fold by our centrifugation system. After incubation with water-soluble tetrazolium-8 (WST-8), the color change of the nylon membranes can be visually interpreted directly by the naked eye or recorded with a smartphone camera. The whole process can be finished in 3 h, and the detection limit can reach 102 CFU/mL. The detection range ranges from 102 CFU/mL to 105 CFU/mL. The cell counting results of our platform are highly positively correlated with the results of cell counting by the conventional lysogeny broth (LB) agar plate approach or the commercial 3 M Petrifilm™ cell counting plate. Our platform provides a convenient and sensitive strategy for rapid monitoring. We highly anticipate that this platform can improve water quality monitoring in resource-poor countries in the near future.
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Affiliation(s)
- Chun-Hao Chang
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan; Department of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Chih-Ling Wang
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Bor-Ran Li
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan; Department of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan; Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.
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24
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Rajpal A, Huart L, Nicolas C, Chevallard C, Guigner JM, Dasilva P, Mercere P, Gervais B, Hervé du Penhoat MA, Renault JP. Superoxide Production under Soft X-ray Irradiation of Liquid Water. J Phys Chem B 2023; 127:4277-4285. [PMID: 37140453 DOI: 10.1021/acs.jpcb.3c00932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Soft X-rays behave like particles with high linear energy transfer, as they deposit a large amount of their energy in the nanometric range, triggered by inner-shell ionization. In water, this can lead to the formation of a doubly ionized water molecule (H2O2+) and the emission of two secondary electrons (photoelectron and Auger electron). Our focus lies on detecting and quantifying the superoxide (HO2°) production via the direct pathway, i.e., from the reaction between the dissociation product of H2O2+, i.e., the oxygen atom (∼4 fs), and the °OH radicals present in the secondary electron tracks. The HO2° yield for 1620 eV photons, via this reaction pathway, was found to be 0.005 (±0.0007) μmol/J (formed within the ∼ps range). Experiments were also performed to determine the yield of HO2° production via another (indirect) pathway, involving solvated electrons. The indirect HO2° yield, measured experimentally as a function of photon energy (from 1700 to 350 eV), resulted in a steep decrease at around 1280 eV and a minimum close to zero at 800 eV. This behavior in contradiction with the theoretical prediction reveals the complexity hidden in the intratrack reactions.
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Affiliation(s)
- Aashini Rajpal
- Université Paris-Saclay, CEA, CNRS, NIMBE, Gif-sur-Yvette 91191, France
- Sorbonne Université, IMPMC, UMR CNRS 7590, IMPMC, 75005 Paris, France
- Synchrotron SOLEIL, Saint Aubin 91190, France
| | - Lucie Huart
- Université Paris-Saclay, CEA, CNRS, NIMBE, Gif-sur-Yvette 91191, France
- Sorbonne Université, IMPMC, UMR CNRS 7590, IMPMC, 75005 Paris, France
- Synchrotron SOLEIL, Saint Aubin 91190, France
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25
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Sanz-Vicente I, Rivero I, Marcuello L, Montano MP, de Marcos S, Galbán J. Portable colorimetric enzymatic disposable biosensor for histamine and simultaneous histamine/tyramine determination using a smartphone. Anal Bioanal Chem 2023; 415:1777-1786. [PMID: 36790459 PMCID: PMC9992026 DOI: 10.1007/s00216-023-04583-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/27/2023] [Accepted: 02/01/2023] [Indexed: 02/16/2023]
Abstract
Tyramine oxidase (TAO), peroxidase (HRP), and Amplex Red (AR) have been immobilized on cellulose to obtain disposable biosensors for the determination of histamine. During the enzymatic reaction, AR is oxidized and a pink spot is obtained. Using a smartphone and measuring the G (green) color coordinate, histamine can be determined in the presence of other biogenic amines (putrescine and cadaverine) in concentrations ranging from 2·10-5 M to 5·10-4 M with a 7.5·10-6 M limit of detection (LoD). Despite tyramine interference, experimental conditions are provided which allow rapid and simple histamine and simultaneous histamine/tyramine (semi)quantitative determination in mixtures. Finally, tyramine and histamine were determined in a tuna extract with good results (compared to the reference HPLC-MS method). The methodology can also be applied in solution allowing histamine (and simultaneous histamine/tyramine) determination with a lower LoD (1.8·10-7 M) and a similar selectivity.
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Affiliation(s)
- Isabel Sanz-Vicente
- Nanosensors and Bioanalytical Systems (N&SB), Analytical Chemistry Department, Faculty of Sciences, Aragon Institute of Nanoscience, University of Zaragoza, 50009, Saragossa, Spain.
| | - Irina Rivero
- Analytical Chemistry Department, Faculty of Sciences, University of Zaragoza, 50009, Saragossa, Spain
| | - Lucía Marcuello
- Analytical Chemistry Department, Faculty of Sciences, University of Zaragoza, 50009, Saragossa, Spain
| | - María Pilar Montano
- Analytical Chemistry Department, Faculty of Sciences, University of Zaragoza, 50009, Saragossa, Spain
| | - Susana de Marcos
- Nanosensors and Bioanalytical Systems (N&SB), Analytical Chemistry Department, Faculty of Sciences, Aragon Institute of Nanoscience, University of Zaragoza, 50009, Saragossa, Spain
| | - Javier Galbán
- Nanosensors and Bioanalytical Systems (N&SB), Analytical Chemistry Department, Faculty of Sciences, Aragon Institute of Nanoscience, University of Zaragoza, 50009, Saragossa, Spain
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26
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Liu C, Song Y, Hu T, Wang S, Yi K, Wang J, Yan Q, Wei L, Zhang Z, Li H, Luo Y, Wu L, Zhang D, Meng E. Adenylate Kinase Fused to Spidroin as a Catalyst for Decreasing Leakage out of 3D-Bioprinted Hydrogels and for ATP Regeneration. Biomacromolecules 2023; 24:1662-1674. [PMID: 36913719 DOI: 10.1021/acs.biomac.2c01445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Abstract
Numerous metabolic reactions and pathways use adenosine 5'-triphosphate (ATP) as an energy source and as a phosphorous or pyrophosphorous donor. Based on three-dimensional (3D)-printing, enzyme immobilization can be used to improve ATP regeneration and operability and reduce cost. However, due to the relatively large mesh size of 3D-bioprinted hydrogels soaked in a reaction solution, the lower-molecular-weight enzymes cannot avoid leaking out of the hydrogels readily. Here, a chimeric adenylate-kinase-spidroin (ADK-RC) is created, with ADK serving as the N-terminal domain. The chimera is capable of self-assembling to form micellar nanoparticles at a higher molecular scale. Although fused to spidroin (RC), ADK-RC remains relatively consistent and exhibits high activity, thermostability, pH stability, and organic solvent tolerance. Considering different surface-to-volume ratios, three shapes of enzyme hydrogels are designed, 3D bioprinted, and measured. In addition, a continuous enzymatic reaction demonstrates that ADK-RC hydrogels have higher specific activity and substrate affinity but a lower reaction rate and catalytic power compared to free enzymes in solution. With ATP regeneration, the ADK and ADK-RC hydrogels significantly increase the production of d-glucose-6-phosphate and obtain an efficient usage frequency. In conclusion, enzymes fused to spidroin might be an efficient strategy for maintaining activity and reducing leakage in 3D-bioprinted hydrogels under mild conditions.
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Affiliation(s)
- Changjun Liu
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Yanmin Song
- Department of Emergency Medicine, Xiangya Hospital, Central South University, Changsha 410008, Hunan, P. R. China
| | - Tianhao Hu
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Shan Wang
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Ke Yi
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Jianjie Wang
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Qing Yan
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Li'an Wei
- Changsha Sanjiang Smart Technology Co., Ltd., Changsha 410026, Hunan, P. R. China
| | - Zheyang Zhang
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Huimin Li
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Yutao Luo
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Lei Wu
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Dongyi Zhang
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
| | - Er Meng
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China.,Key Laboratory of Genetic Improvement and Multiple Utilization of Economic Crops in Hunan Province, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China.,Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal-Polluted Soils, Hunan University of Science and Technology, Xiangtan 411201, Hunan, P. R. China
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27
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Chang H, Hu X, Tang X, Tian S, Li Y, Lv X, Shang L. A Mitochondria-Targeted Fluorescent Probe for Monitoring NADPH Overproduction during Influenza Virus Infection. ACS Sens 2023; 8:829-838. [PMID: 36689687 DOI: 10.1021/acssensors.2c02458] [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: 01/24/2023]
Abstract
Reduced nicotinamide adenine dinucleotide phosphate (NADPH) is an important cofactor in the progress of antioxidant synthesis and biosynthesis, and an abnormal NADPH level has been observed in many viral infection processes. However, efficient tools to monitor NADPH in living cells after viral infection have not been reported. In this work, we present a fluorescent probe, NAFP4, that could detect NADPH ex vivo with a low detection limit of 3.66 nM and image mitochondrial NADPH level changes in living cells. The probe exhibits excellent cell permeability, rapid reactivity, and high selectivity with minimal cytotoxicity. Using NAFP4, we reveal that the NADPH is overproduced in the host cells infected by influenza virus, which was caused by an elevated level of G6PDH during the virus infection. Moreover, there was positive association between the G6PDH level and virus replication. With the proposed probe NAFP4, our study highlights that the virus infection would influence the host metabolism in NADPH production and also suggests that G6PDH is expected to be a promising target for antiviral therapy.
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Affiliation(s)
- Hao Chang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and KLMDASR of Tianjin, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China.,Drug Discovery Center for Infectious Disease, Nankai University, 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China
| | - Xiao Hu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and KLMDASR of Tianjin, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China.,Drug Discovery Center for Infectious Disease, Nankai University, 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China
| | - Xiaomei Tang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and KLMDASR of Tianjin, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China.,Drug Discovery Center for Infectious Disease, Nankai University, 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China
| | - Shiwei Tian
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and KLMDASR of Tianjin, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China.,Drug Discovery Center for Infectious Disease, Nankai University, 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China
| | - Yidan Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and KLMDASR of Tianjin, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China.,Drug Discovery Center for Infectious Disease, Nankai University, 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China
| | - Xing Lv
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and KLMDASR of Tianjin, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China.,Drug Discovery Center for Infectious Disease, Nankai University, 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China
| | - Luqing Shang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and KLMDASR of Tianjin, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China.,Drug Discovery Center for Infectious Disease, Nankai University, 38 Tongyan Road, Haihe Education Park, Tianjin 300350, People's Republic of China
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Yi M, Lou J, Zhu W, Li D, Yu P, Lu H. Mechanism of β-blocker biodegradation by wastewater microorganisms. JOURNAL OF HAZARDOUS MATERIALS 2023; 444:130338. [PMID: 36417780 DOI: 10.1016/j.jhazmat.2022.130338] [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: 06/18/2022] [Revised: 10/22/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
The recalcitrant β-blockers have been widely detected in aquatic environments up to several hundred μg/L, which are major contributors to β1 antagonistic activities in wastewater. Their biodegradation mechanisms remain obscure, hindering the development of efficient removal techniques. This study constructed the biodegradation pathways for three typical β-blockers, namely atenolol, metoprolol, and propranolol, assessed the toxicity of their major biotransformation products, and identified the key enzyme catalyzing the O-dealkylation reaction leading to pollutant mineralization. Atenolol and metoprolol degradation was more efficient than that of propranolol by activated sludge, producing metoprolol acid (MTPA) as a major intermediate. Hydrogenophaga sp. YM1 isolated from activated sludge possess the α-ketoglutarate dependent dioxygenase (TfdA) responsible for O-dealkylation of MTPA and propranolol, producing 4-hydroxyphenylacetic acid (4-HPA) that can be further degraded and ultimately enters the TCA cycle. The role of TfdA was verified by proteomics, enzyme stimulation/inhibition tests, and gene knockout experiments. Molecular docking suggests its different interactions with MTPA and propranolol. Acetate facilitated the degradation of β-blockers efficiently. The results may shed light on enhanced biological removals of broader β-blockers and their transformation products in the environment.
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Affiliation(s)
- Ming Yi
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agriculture Science, Hangzhou, Zhejiang, China
| | - Jinxiu Lou
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wanlu Zhu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dan Li
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | - Pingfeng Yu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Huijie Lu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Academy of Ecological Civilization, Zhejiang University, Hangzhou 310058, China.
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An HW, Lee J, Park JW. Surface characteristics and in vitro biocompatibility of surface-modified titanium foils as a regenerative barrier membrane for guided bone regeneration. J Biomater Appl 2023; 37:1228-1242. [PMID: 36205350 DOI: 10.1177/08853282221132351] [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: 11/16/2022]
Abstract
This study evaluated surface characteristics and biocompatibility of surface-modified thin titanium (Ti) foils as a regenerative barrier membrane for future application in guided bone regeneration (GBR) surgery to augment atrophic alveolar bone. Anodic oxidation and post-heat treatment were performed to prepare various Ti foil samples. Then, the in vitro soft and hard tissue compatibility of the samples was evaluated by examining the cell responses using primary human gingival fibroblasts (HGFs) and MG63 human osteoblast-like cells. Investigated Ti foil samples showed marked differences in physicochemical surface properties. Additional 400°C heat treatment applied to the anodized Ti surface led to formation of an anatase titanium dioxide structure and well-organized nanoscale protrusions, and significantly increased surface wettability. Anodization and heat treatment enhanced the growth of HGFs and MG63 cells in Ti foil samples. Additional heat treatment for 10 and 30 min further significantly improved the response of HGFs including spreading and proliferation, and upregulated the mRNA expression of cell adhesion- and maturation-related genes as well as the osteoblast differentiation of MG63 cells. Ti foil sample with thin oxide coating obtained by a 30 min heat treatment exhibited poor clinical plasticity as a regenerative barrier membrane, which showed complete coating failure in the bending test. Our results indicate that anatase Ti oxide coating of a specific film thickness with nanoscale surface protrusion morphology and hydrophilic characteristics obtained by anodization and post-heat treatment would be an effective approach as a biocompatible Ti regenerative membrane for inducing better regeneration of both gingival tissue and bone.
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Affiliation(s)
- Hyun-Wook An
- Graduate School, 34986Kyungpook National University, Daegu, Korea.,Megagen Implant R&D Center, Daegu, Korea
| | - Jaesik Lee
- Megagen Implant R&D Center, Daegu, Korea
| | - Jin-Woo Park
- Department of Pediatric Dentistry, 65498Kyungpook National University School of Dentistry, Daegu, Korea
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30
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Wang Q, Zhang A, Zhu L, Yang X, Fang G, Tang B. Cyclodextrin-based ocular drug delivery systems: A comprehensive review. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Che K, Yang Y, Zhang J, Feng L, Xie Y, Li Q, Qiu J. Oral pyruvate prevents high-intensity interval exercise-induced metabolic acidosis in rats by promoting lactate dehydrogenase reaction. Front Nutr 2023; 10:1096986. [PMID: 37090767 PMCID: PMC10117856 DOI: 10.3389/fnut.2023.1096986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 03/20/2023] [Indexed: 04/25/2023] Open
Abstract
Introduction There is no denying the clinical benefits of exogenous pyruvate in the treatment of pathological metabolic acidosis. However, whether it can prevent exercise physiological metabolic acidosis, delay the occurrence of exercise fatigue, and improve the beneficial effects of exercise and its internal mechanism remain unclear. Methods We randomly divided 24 male SD rats into 3 groups: one group was a control without exercise (CC, n = 8), and the other two groups were supplemented with 616 mg/kg/day pyruvate (EP, n = 8) or distilled water of equal volume (EC, n = 8). These groups completed acute high-intensity interval exercise (HIIE) after 7 days of supplementation. The acid metabolism variables were measured immediately after exercise including blood pH (pHe), base excess (BE), HCO3 -, blood lactic acid and skeletal muscle pH (pHi). The redox state was determined by measuring the oxidized coenzyme I/reduced coenzyme I (nicotinamide adenine dinucleotide [NAD+]/reduced NAD+ [NADH]) ratio and lactate/pyruvate (L/P) ratio. In addition, the activities of lactate dehydrogenase A (LDHA), hexokinase (HK), phosphofructokinase (PFK) and pyruvate kinase (PK) were determined by ELISA. Results Pyruvate supplementation significantly reversed the decrease of pHe, BE, HCO3 - and pHi values after HIIE (p < 0.001), while significantly increased the activities of LDHA (p = 0.048), HK (p = 0.006), and PFK (p = 0.047). Compared with the CC, the NAD+/NADH (p = 0.008) ratio and the activities of LDHA (p = 0.002), HK (p < 0.001), PFK (p < 0.001), and PK (p = 0.006) were significantly improved in EP group. Discussion This study provides compelling evidence that oral pyruvate attenuates HIIE-induced intracellular and extracellular acidification, possibly due to increased activity of LDHA, which promotes the absorption of H+ in the LDH reaction. The beneficial effects of improving the redox state and glycolysis rate were also shown. Our results suggest that pyruvate can be used as an oral nutritional supplement to buffer HIIE induced metabolic acidosis.
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Affiliation(s)
- Kaixuan Che
- Department of Exercise Biochemistry, Exercise Science School, Beijing Sport University, Beijing, China
| | - Yanping Yang
- Department of Exercise Biochemistry, Exercise Science School, Beijing Sport University, Beijing, China
| | - Jun Zhang
- Department of Exercise Biochemistry, Exercise Science School, Beijing Sport University, Beijing, China
| | - Lin Feng
- Department of Exercise Biochemistry, Exercise Science School, Beijing Sport University, Beijing, China
| | - Yan Xie
- Department of Exercise Biochemistry, Exercise Science School, Beijing Sport University, Beijing, China
| | - Qinlong Li
- Department of Exercise Physiology, Exercise Science School, Beijing Sport University, Beijing, China
| | - Junqiang Qiu
- Department of Exercise Biochemistry, Exercise Science School, Beijing Sport University, Beijing, China
- Beijing Sports Nutrition Engineering Research Center, Beijing, China
- *Correspondence: Junqiang Qiu,
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32
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Oki S, Kageyama S, Machihara K, Namba T. Kuanoniamine C Suppresses Adipogenesis and White Adipose Tissue Expansion by Modulating Mitochondrial Function. Biol Pharm Bull 2023; 46:1787-1796. [PMID: 38044097 DOI: 10.1248/bpb.b23-00523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Obesity is characterized by the excessive accumulation of fat to adipose tissue, which is related to abnormal increasing white adipose tissue (WAT) in the body, and it upregulates the risk of multiple diseases. Here, kuanoniamine C, which is a pyridoacridine alkaloid, suppressed the differentiation of pre-adipose cells into white adipocytes via the modulation of mitochondrial function, and inhibited WAT expansion in the early phase of high-fat-diet-induced obesity model. Pharmacological analysis revealed that inhibition of mitochondrial respiratory complex II, which new target of kuanoniamine C, activated reactive oxygen species (ROS)-extracellular signal-regulated kinase (ERK)-β-catenin signaling, and this signaling was antagonized by insulin-, IBMX-, and dexamethasone-induced adipogenesis. Therefore, the kuanoniamine C might prevent abnormal WAT expansion even when eating a diet that is not calorie restricted.
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Affiliation(s)
- Shoma Oki
- Research and Education Faculty, Multidisciplinary Science Cluster, Interdisciplinary Science Unit, Kochi University
- Department of Marine Resource Science, Faculty of Agriculture and Marine Science, Kochi University
| | - Sou Kageyama
- Department of Marine Resource Science, Faculty of Agriculture and Marine Science, Kochi University
| | - Kayo Machihara
- Research and Education Faculty, Multidisciplinary Science Cluster, Interdisciplinary Science Unit, Kochi University
| | - Takushi Namba
- Research and Education Faculty, Multidisciplinary Science Cluster, Interdisciplinary Science Unit, Kochi University
- Department of Marine Resource Science, Faculty of Agriculture and Marine Science, Kochi University
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33
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Costa CF, Li H, Hussein MAF, Yang Y, Lismont C, Fransen M. Assessment of the Peroxisomal Redox State in Living Cells Using NADPH- and NAD +/NADH-Specific Fluorescent Protein Sensors. Methods Mol Biol 2023; 2643:183-197. [PMID: 36952186 DOI: 10.1007/978-1-0716-3048-8_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
The pyridine nucleotides NAD(H) and NADP(H) are key molecules in cellular metabolism, and measuring their levels and oxidation states with spatiotemporal precision is of great value in biomedical research. Traditional methods to assess the redox state of these metabolites are intrusive and prohibit live-cell quantifications. This obstacle was surpassed by the development of genetically encoded fluorescent biosensors enabling dynamic measurements with subcellular resolution in living cells. Here, we provide step-by-step protocols to monitor the intraperoxisomal NADPH levels and NAD+/NADH redox state in cellulo by using targeted variants of iNAP1 and SoNar, respectively.
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Affiliation(s)
- Cláudio F Costa
- Department of Cellular and Molecular Medicine, Laboratory of Peroxisome Biology and Intracellular Communication, KU Leuven, Leuven, Belgium
| | - Hongli Li
- Department of Cellular and Molecular Medicine, Laboratory of Peroxisome Biology and Intracellular Communication, KU Leuven, Leuven, Belgium
| | - Mohamed A F Hussein
- Department of Cellular and Molecular Medicine, Laboratory of Peroxisome Biology and Intracellular Communication, KU Leuven, Leuven, Belgium
- Department of Biochemistry, Faculty of Pharmacy, Assiut University, Asyut, Egypt
| | - Yi Yang
- Synthetic Biology and Biotechnology Laboratory, State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing Technology, East China University of Science and Technology, Shanghai, China
- State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science, Institute of Neuroscience, Chinese Academy of Sciences, Shanghai, China
| | - Celien Lismont
- Department of Cellular and Molecular Medicine, Laboratory of Peroxisome Biology and Intracellular Communication, KU Leuven, Leuven, Belgium
| | - Marc Fransen
- Department of Cellular and Molecular Medicine, Laboratory of Peroxisome Biology and Intracellular Communication, KU Leuven, Leuven, Belgium.
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He Q, Jin J, Li P, Zhu H, Wang Z, Fan W, Yang JL. Involvement of SlSTOP1 regulated SlFDH expression in aluminum tolerance by reducing NAD + to NADH in the tomato root apex. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 113:387-401. [PMID: 36471650 DOI: 10.1111/tpj.16054] [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: 10/10/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Formate dehydrogenase (FDH; EC 1.2.1.2.) has been implicated in plant responses to a variety of stresses, including aluminum (Al) stress in acidic soils. However, the role of this enzyme in Al tolerance is not yet fully understood, and how FDH gene expression is regulated is unknown. Here, we report the identification and functional characterization of the tomato (Solanum lycopersicum) SlFDH gene. SlFDH encodes a mitochondria-localized FDH with Km values of 2.087 mm formate and 29.1 μm NAD+ . Al induced the expression of SlFDH in tomato root tips, but other metals did not, as determined by quantitative reverse transcriptase-polymerase chain reaction. CRISPR/Cas9-generated SlFDH knockout lines were more sensitive to Al stress and formate than wild-type plants. Formate failed to induce SlFDH expression in the tomato root apex, but NAD+ accumulated in response to Al stress. Co-expression network analysis and interaction analysis between genomic DNA and transcription factors (TFs) using PlantRegMap identified seven TFs that might regulate SlFDH expression. One of these TFs, SlSTOP1, positively regulated SlFDH expression by directly binding to its promoter, as demonstrated by a dual-luciferase reporter assay and electrophoretic mobility shift assay. The Al-induced expression of SlFDH was completely abolished in Slstop1 mutants, indicating that SlSTOP1 is a core regulator of SlFDH expression under Al stress. Taken together, our findings demonstrate that SlFDH plays a role in Al tolerance and reveal the transcriptional regulatory mechanism of SlFDH expression in response to Al stress in tomato.
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Affiliation(s)
- Qiyu He
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jianfeng Jin
- Department of Horticulture, Zhejiang University, Zijingang Campus, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Pengfei Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Huihui Zhu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zhanqi Wang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Sciences, Huzhou University, Huzhou, 313000, China
| | - Wei Fan
- College of Horticulture and Landscape, Yunnan Agricultural University, Kunming, China
| | - Jian Li Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
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35
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Yaneva Z, Ivanova D, Nikolova N, Toneva M. Organic dyes in contemporary medicinal chemistry and biomedicine. I. From the chromophore to the bioimaging/bioassay agent. BIOTECHNOL BIOTEC EQ 2022. [DOI: 10.1080/13102818.2022.2039077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Zvezdelina Yaneva
- Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
| | - Donika Ivanova
- Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
| | - Nevena Nikolova
- Ecology Unit, Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
| | - Monika Toneva
- Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
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36
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Zhou Y, Qi M, Yang M. Current Status and Future Perspectives of Lactate Dehydrogenase Detection and Medical Implications: A Review. BIOSENSORS 2022; 12:1145. [PMID: 36551112 PMCID: PMC9775244 DOI: 10.3390/bios12121145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/29/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
The demand for glucose uptake and the accompanying enhanced glycolytic energy metabolism is one of the most important features of cancer cells. Unlike the aerobic metabolic pathway in normal cells, the large amount of pyruvate produced by the dramatic increase of glycolysis in cancer cells needs to be converted to lactate in the cytoplasm, which cannot be done without a large amount of lactate dehydrogenase (LDH). This explains why elevated serum LDH concentrations are usually seen in cancer patient populations. LDH not only correlates with clinical prognostic survival indicators, but also guides subsequent drug therapy. Besides their role in cancers, LDH is also a biomarker for malaria and other diseases. Therefore, it is urgent to develop methods for sensitive and convenient LDH detection. Here, this review systematically summarizes the clinical impact of lactate dehydrogenase detection and principles for LDH detection. The advantages as well as limitations of different detection methods and the future trends for LDH detection were also discussed.
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Affiliation(s)
- Yangzhe Zhou
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Min Qi
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Minghui Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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37
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Lei W, Deckers A, Luchena C, Popova A, Reischl M, Jung N, Bräse S, Schwartz T, Krimmelbein IK, Tietze LF, Levkin PA. Droplet Microarray as a Powerful Platform for Seeking New Antibiotics Against Multidrug-Resistant Bacteria. Adv Biol (Weinh) 2022; 6:e2200166. [PMID: 35843867 DOI: 10.1002/adbi.202200166] [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: 06/17/2022] [Revised: 07/01/2022] [Indexed: 01/28/2023]
Abstract
Multidrug-resistant (MDR) bacteria is a severe threat to public health. Therefore, it is urgent to establish effective screening systems for identifying novel antibacterial compounds. In this study, a highly miniaturized droplet microarray (DMA) based high-throughput screening system is established to screen over 2000 compounds for their antimicrobial properties against carbapenem-resistant Klebsiella pneumoniae and methicillin resistant Staphylococcus aureus (MRSA). The DMA consists of an array of hydrophilic spots divided by superhydrophobic borders. Due to the differences in the surface wettability between the spots and the borders, arrays of hundreds of nanoliter-sized droplets containing bacteria and different drugs can be generated for screening applications. A simple colorimetric viability readout utilizing a conventional photo scanner is developed for fast single-step detection of the inhibitory effect of the compounds on bacterial growth on the whole array. Six hit compounds, including coumarins and structurally simplified estrogen analogs are identified in the primary screening and validated with minimum inhibition concentration assay for their antibacterial effect. This study demonstrates that the DMA-based high-throughput screening system enables the identification of potential antibiotics from novel synthetic compound libraries, offering opportunities for development of new treatments against multidrug-resistant bacteria.
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Affiliation(s)
- Wenxi Lei
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Anke Deckers
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Charlotte Luchena
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Anna Popova
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Markus Reischl
- Institute for Automation and Applied Informatics, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Nicole Jung
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Stefan Bräse
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute of Organic Chemistry, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Thomas Schwartz
- Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Ilga K Krimmelbein
- Institute of Organic and Biomolecular Chemistry, Georg-August-Universität, Tammannstr. 2, D-37077, Göttingen, Germany
| | - Lutz F Tietze
- Institute of Organic and Biomolecular Chemistry, Georg-August-Universität, Tammannstr. 2, D-37077, Göttingen, Germany
| | - Pavel A Levkin
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute of Organic Chemistry, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
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38
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Kim JY, Kim HM, Kim JH, Lee JH, Zhang K, Guo S, Lee DH, Gao EM, Son RH, Kim SM, Kim CY. Preventive effects of the butanol fraction of Justicia procumbens L. against dexamethasone-induced muscle atrophy in C2C12 myotubes. Heliyon 2022; 8:e11597. [DOI: 10.1016/j.heliyon.2022.e11597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/06/2022] [Accepted: 11/10/2022] [Indexed: 11/23/2022] Open
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39
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A new ratiometric fluorescent detection of Glucose-6-phosphate dehydrogenase enzyme based on dually emitting carbon dots and silver nanoparticles. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Sadıkoğulları BC, Şenel P, Çini N, Faysal AA, Odabaşoğlu M, Özdemir AD, Gölcü A. An Overview of Natural and Synthetic Phthalides Involved in Cancer Studies: Past, Present, and Future. ChemistrySelect 2022. [DOI: 10.1002/slct.202202004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bleda Can Sadıkoğulları
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Pelin Şenel
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Nejla Çini
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Abdullah Al Faysal
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Mustafa Odabaşoğlu
- Karadeniz Technical University Faculty of Sciences and Letters Department of Chemistry Trabzon 61080 Turkey
| | - Ayşe Daut Özdemir
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Ayşegül Gölcü
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
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41
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Fremdling P, Esser TK, Saha B, Makarov AA, Fort KL, Reinhardt-Szyba M, Gault J, Rauschenbach S. A Preparative Mass Spectrometer to Deposit Intact Large Native Protein Complexes. ACS NANO 2022; 16:14443-14455. [PMID: 36037396 PMCID: PMC9527803 DOI: 10.1021/acsnano.2c04831] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Electrospray ion-beam deposition (ES-IBD) is a versatile tool to study the structure and reactivity of molecules from small metal clusters to large protein assemblies. It brings molecules gently into the gas phase, where they can be accurately manipulated and purified, followed by controlled deposition onto various substrates. In combination with imaging techniques, direct structural information on well-defined molecules can be obtained, which is essential to test and interpret results from indirect mass spectrometry techniques. To date, ion-beam deposition experiments are limited to a small number of custom instruments worldwide, and there are no commercial alternatives. Here we present a module that adds ion-beam deposition capabilities to a popular commercial MS platform (Thermo Scientific Q Exactive UHMR mass spectrometer). This combination significantly reduces the overhead associated with custom instruments, while benefiting from established high performance and reliability. We present current performance characteristics including beam intensity, landing-energy control, and deposition spot size for a broad range of molecules. In combination with atomic force microscopy (AFM) and transmission electron microscopy (TEM), we distinguish near-native from unfolded proteins and show retention of the native shape of protein assemblies after dehydration and deposition. Further, we use an enzymatic assay to quantify the activity of a noncovalent protein complex after deposition on a dry surface. Together, these results not only indicate a great potential of ES-IBD for applications in structural biology, but also outline the challenges that need to be solved for it to reach its full potential.
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Affiliation(s)
- Paul Fremdling
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Tim K. Esser
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Bodhisattwa Saha
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Alexander A. Makarov
- Thermo
Fisher Scientific, Bremen 28199, Germany
- Biomolecular
Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular
Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Padualaan 8, 3584
CH Utrecht, The Netherlands
| | | | | | - Joseph Gault
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Stephan Rauschenbach
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
- Max
Planck Institute for Solid State Research, Heisenbergstrasse 1, Stuttgart 70569, Germany
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42
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Hu Y, Chai X, Men J, Rao S, Cong X, Cheng S, Qiao Z. Does Methionine Status Influence the Outcome of Selenomethinione Supplementation? A Comparative Study of Metabolic and Selenium Levels in HepG2 Cells. Nutrients 2022; 14:nu14183705. [PMID: 36145081 PMCID: PMC9506159 DOI: 10.3390/nu14183705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Methionine restriction and selenium supplementation are recommended because of their health benefits. As a major nutrient form in selenium supplementation, selenomethionine shares a similar biological process to its analog methionine. However, the outcome of selenomethionine supplementation under different methionine statuses and the interplay between these two nutrients remain unclear. Therefore, this study explored the metabolic effects and selenium utilization in HepG2 cells supplemented with selenomethionine under deprived, adequate, and abundant methionine supply conditions by using nuclear magnetic resonance-based metabolomic and molecular biological approaches. Results revealed that selenomethionine promoted the proliferation of HepG2 cells, the transcription of selenoproteins, and the production of most amino acids while decreasing the levels of creatine, aspartate, and nucleoside diphosphate sugar regardless of methionine supply. Selenomethionine substantially disturbed the tricarboxylic acid cycle and choline metabolism in cells under a methionine shortage. With increasing methionine supply, the metabolic disturbance was alleviated, except for changes in lactate, glycine, citrate, and hypoxanthine. The markable selenium accumulation and choline decrease in the cells under methionine shortage imply the potential risk of selenomethionine supplementation. This work revealed the biological effects of selenomethionine under different methionine supply conditions. This study may serve as a guide for controlling methionine and selenomethionine levels in dietary intake.
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Affiliation(s)
- Yili Hu
- National R&D Center for Se-Rich Agricultural Products Processing, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xiaocui Chai
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Jun Men
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Shen Rao
- National R&D Center for Se-Rich Agricultural Products Processing, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xin Cong
- National R&D Center for Se-Rich Agricultural Products Processing, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- Research and Development Center, Enshi Se-Run Material Engineering Technology Co., Ltd., Enshi 445000, China
| | - Shuiyuan Cheng
- National R&D Center for Se-Rich Agricultural Products Processing, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Zhixian Qiao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- Correspondence: ; Tel.: +86-027-68780783
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Dysregulation of Cell Envelope Homeostasis in Staphylococcus aureus Exposed to Solvated Lignin. Appl Environ Microbiol 2022; 88:e0054822. [PMID: 35852361 PMCID: PMC9361832 DOI: 10.1128/aem.00548-22] [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: 01/21/2023] Open
Abstract
Lignin is an aromatic plant cell wall polymer that facilitates water transport through the vasculature of plants and is generated in large quantities as an inexpensive by-product of pulp and paper manufacturing and biorefineries. Although lignin's ability to reduce bacterial growth has been reported previously, its hydrophobicity complicates the ability to examine its biological effects on living cells in aqueous growth media. We recently described the ability to solvate lignin in Good's buffers with neutral pH, a breakthrough that allowed examination of lignin's antimicrobial effects against the human pathogen Staphylococcus aureus. These analyses showed that lignin damages the S. aureus cell membrane, causes increased cell clustering, and inhibits growth synergistically with tunicamycin, a teichoic acid synthesis inhibitor. In the present study, we examined the physiological and transcriptomic responses of S. aureus to lignin. Intriguingly, lignin restored the susceptibility of genetically resistant S. aureus isolates to penicillin and oxacillin, decreased intracellular pH, impaired normal cell division, and rendered cells more resistant to detergent-induced lysis. Additionally, transcriptome sequencing (RNA-Seq) differential expression (DE) analysis of lignin-treated cultures revealed significant gene expression changes (P < 0.05 with 5% false discovery rate [FDR]) related to the cell envelope, cell wall physiology, fatty acid metabolism, and stress resistance. Moreover, a pattern of concurrent up- and downregulation of genes within biochemical pathways involved in transmembrane transport and cell wall physiology was observed, which likely reflects an attempt to tolerate or compensate for lignin-induced damage. Together, these results represent the first comprehensive analysis of lignin's antibacterial activity against S. aureus. IMPORTANCE S. aureus is a leading cause of skin and soft tissue infections. The ability of S. aureus to acquire genetic resistance to antibiotics further compounds its ability to cause life-threatening infections. While the historical response to antibiotic resistance has been to develop new antibiotics, bacterial pathogens are notorious for rapidly acquiring genetic resistance mechanisms. As such, the development of adjuvants represents a viable way of extending the life span of current antibiotics to which pathogens may already be resistant. Here, we describe the phenotypic and transcriptomic response of S. aureus to treatment with lignin. Our results demonstrate that lignin extracted from sugarcane and sorghum bagasse restores S. aureus susceptibility to β-lactams, providing a premise for repurposing these antibiotics in treatment of resistant S. aureus strains, possibly in the form of topical lignin/β-lactam formulations.
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Yang L, Zhu J, Yang L, Gan Y, Hu D, Zhao J, Zhao Y. SCO-spondin-derived peptide NX210 rescues neurons from cerebral ischemia/reperfusion injury through modulating the Integrin-β1 mediated PI3K/Akt pathway. Int Immunopharmacol 2022; 111:109079. [PMID: 35930911 DOI: 10.1016/j.intimp.2022.109079] [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: 05/07/2022] [Revised: 07/17/2022] [Accepted: 07/18/2022] [Indexed: 11/05/2022]
Abstract
Ischemic stroke is a common condition with high morbidity and mortality, causing irreversible neuronal damage and seriously affecting neurological function. There has been no ideal effective treatment so far. The NX210 peptide is derived from the thrombospondin type 1 repeat (TSR) sequence of SCO-spondin, and has been reported to exert various neurogenic properties. This study investigated whether NX210 had therapeutic effects and possible underlying mechanisms against cerebral ischemia/reperfusion (I/R). Therefore, primary embryonic rat cortical neurons and Sprague-Dawley (SD) rats that were subjected to oxygen-glucose deprivation/reoxygenation (OGD/R) and middle cerebral artery occlusion/reperfusion (MCAO/R) injuries, respectively, were treated with or without NX210. We found that NX210 reduced OGD/R-induced cell viability loss and cytotoxicity. NX210 decreased cerebral infarct volume and brain edema, ameliorated neurological dysfunction, attenuated oxidative stress damage, and diminished neuronal apoptosis in MCAO/R rats. Furthermore, western blot analysis shown that treatment with NX210 up-regulated the expression of Integrin-β1, phosphorylated-PI3K (p-PI3K) and phosphorylated-Akt (p-Akt). The Integrin-β1 specific inhibitor, ATN-161, was used to identify pathways involved. The anti-oxidation activities and anti-apoptosis of NX210 was reversed by treatment with ATN-161. Overall, our results indicated that NX210 prevents oxidative stress and neuronal apoptosis in cerebral I/R via upregulation of the Integrin-β1/PI3K/Akt signaling pathway. These results indicated that NX210 may be a promising therapeutic candidate for ischemic stroke.
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Affiliation(s)
- Liyu Yang
- Department of Pathology, Chongqing Medical University, Chongqing 400016, PR China; Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Jin Zhu
- Department of Pathology, Chongqing Medical University, Chongqing 400016, PR China; Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Li Yang
- Department of Pathophysiology, Chongqing Medical University, Chongqing 400016, PR China; Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Yunhao Gan
- Department of Pathology, Chongqing Medical University, Chongqing 400016, PR China; Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Di Hu
- Department of Pathology, Chongqing Medical University, Chongqing 400016, PR China; Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, PR China
| | - Jing Zhao
- Department of Pathophysiology, Chongqing Medical University, Chongqing 400016, PR China; Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, PR China.
| | - Yong Zhao
- Department of Pathology, Chongqing Medical University, Chongqing 400016, PR China; Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, PR China.
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GAO R, FU Q, LUO D, LIU B. Multi-signal information increment sensing system for point-of-care testing of NADH based on cobalt oxyhydroxide nanoflakes. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Preparation of Micron-Scale Activated Carbon-Immobilized Bacteria for the Adsorption–Biodegradation of Diesel Oil. WATER 2022. [DOI: 10.3390/w14132061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This paper investigated the micron-scale activated carbon (MAC) immobilized diesel-oil-degrading bacteria (bio-MAC) used as remediation materials for the removal of diesel-oil-contaminated water. The high-efficiency indigenous diesel-oil-degrading bacteria were firstly screened and enriched, then the MAC was used as a diesel oil sorbent and biocarrier for the immobilization of degrading bacteria to prepare the bio-MAC material. The removal performance of the bio-MAC was evaluated via a comparison with the freely degrading bacteria and MAC. The SEM results demonstrated that the diesel-oil-degrading bacteria were effectively immobilized and grew well on the surfaces of MAC particles. The concentration of MAC significantly influenced the growth and activity (DHA and LPS) of immobilized bacteria, and the MAC addition of 3.0 g/L was proven to be an optimum amount for the preparation of bio-MAC. The high-throughput sequencing analysis further indicated that the bacteria immobilized on MAC showed higher abundance levels and diversities index values compared to freely suspended bacteria, such as Pseudomonas, Rhodococcus, Bacillus and Microbacterium. The FTIR spectroscopy results showed that the bio-MAC could effectively degrade the aliphatic hydrocarbons, alkenes and aromatic compounds of diesel oil to carboxylic acids, esters, alcohols and other metabolites. When the concentration of diesel oil was 1 g/L, the removal efficiency for the diesel oil of bio-MAC reached 86.35% after 15 days, while only 23.82% and 70.97% of the diesel oil was removed using the same amount of free bacteria and MAC, respectively. The prepared bio-MAC showed a synergic effect of adsorption and biodegradation and efficiently removed diesel oil from wastewater.
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Cross-Disciplinary Application for Qualitative Magnesium Corrosion Assays. Bioinorg Chem Appl 2022; 2022:8289447. [PMID: 35800067 PMCID: PMC9256404 DOI: 10.1155/2022/8289447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/18/2022] [Accepted: 06/04/2022] [Indexed: 11/22/2022] Open
Abstract
At the moment, unserviceable magnesium implants make a good case in point for further responsible study in this field. Whether we are willing to admit it or not, existing methods for corrosion monitoring are exposed to susceptibility and instability. Interdisciplinary theories and the existing corrosion experiments were combined based on their various merits for developing an accurate and precise corroding experiment for Mg/Mg alloys. We used the water-soluble tetrazolium-8 (WST-8) reagent to further complete the immersion experiment. The color change of the solution reflects the rationale of corrosion, followed by monitoring the degree of corrosion. The feasibility of this idea will be demonstrated.
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Sabry R, Nguyen M, Younes S, Favetta LA. BPA and its analogs increase oxidative stress levels in in vitro cultured granulosa cells by altering anti-oxidant enzymes expression. Mol Cell Endocrinol 2022; 545:111574. [PMID: 35065199 DOI: 10.1016/j.mce.2022.111574] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/07/2022] [Accepted: 01/17/2022] [Indexed: 12/14/2022]
Abstract
Bisphenol A is a widespread endocrine disruptor with numerous effects on reproductive functions. Limitations on BPA in manufacturing has prompted the use of analogs, such as BPS and BPF, with limited research on their safety. The objective of this study was to evaluate the effects of BPA and its analogs on oxidative stress levels within bovine granulosa cells and to measure the expression of key antioxidant genes. Results indicate that BPA and BPF reduce cell viability and induce mitochondrial dysfunction and all three bisphenols increased production of reactive oxygen species as early as 12hrs post exposure. BPA increased the levels of antioxidants at 12hrs at the mRNA and protein levels, while these results were not significant at 48hrs. These results together suggest that BPA and its analogs can induce oxidative stress within bovine granulosa cells, although not necessarily through common mechanisms. Therefore, the use of BPA analogs may have to be re-considered.
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Affiliation(s)
- R Sabry
- Reproductive Health and Biotechnology Laboratory, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - M Nguyen
- Reproductive Health and Biotechnology Laboratory, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - S Younes
- Reproductive Health and Biotechnology Laboratory, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - L A Favetta
- Reproductive Health and Biotechnology Laboratory, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.
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Yeung CF, Tang SH, Yang Z, Li TY, Li KK, Chan YM, Shek HL, Io KW, Tam KT, Yiu SM, Tse MK, Wong CY. Ruthenafuran Complexes Supported by the Bipyridine-Bis(diphenylphosphino)methane Ligand Set: Synthesis and Cytotoxicity Studies. Molecules 2022; 27:molecules27051709. [PMID: 35268810 PMCID: PMC8911682 DOI: 10.3390/molecules27051709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/22/2022] [Accepted: 03/03/2022] [Indexed: 11/16/2022] Open
Abstract
Mononuclear and dinuclear Ru(II) complexes cis-[Ru(κ2-dppm)(bpy)Cl2] (1), cis-[Ru(κ2-dppe)(bpy)Cl2] (2) and [Ru2(bpy)2(μ-dpam)2(μ-Cl)2](Cl)2 ([3](Cl)2) were prepared from the reactions between cis(Cl), cis(S)-[Ru(bpy)(dmso-S)2Cl2] and diphosphine/diarsine ligands (bpy = 2,2′-bipyridine; dppm = 1,1-bis(diphenylphosphino)methane; dppe = 1,2-bis(diphenylphosphino)ethane; dpam = 1,1-bis(diphenylarsino)methane). While methoxy-substituted ruthenafuran [Ru(bpy)(κ2-dppe)(C^O)]+ ([7]+; C^O = anionic bidentate [C(OMe)CHC(Ph)O]− chelate) was obtained as the only product in the reaction between 2 and phenyl ynone HC≡C(C=O)Ph in MeOH, replacing 2 with 1 led to the formation of both methoxy-substituted ruthenafuran [Ru(bpy)(κ2-dppm)(C^O)]+ ([4]+) and phosphonium-ring-fused bicyclic ruthenafuran [Ru(bpy)(P^C^O)Cl]+ ([5]+; P^C^O = neutral tridentate [(Ph)2PCH2P(Ph)2CCHC(Ph)O] chelate). All of these aforementioned metallafuran complexes were derived from Ru(II)–vinylidene intermediates. The potential applications of these metallafuran complexes as anticancer agents were evaluated by in vitro cytotoxicity studies against cervical carcinoma (HeLa) cancer cell line. All the ruthenafuran complexes were found to be one order of magnitude more cytotoxic than cisplatin, which is one of the metal-based anticancer agents being widely used currently.
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Affiliation(s)
- Chi-Fung Yeung
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Sik-Him Tang
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Zhe Yang
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Tsun-Yin Li
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Ka-Kit Li
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Yuen-Man Chan
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Hau-Lam Shek
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Kai-Wa Io
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - King-Ting Tam
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Shek-Man Yiu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Man-Kit Tse
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
| | - Chun-Yuen Wong
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (C.-F.Y.); (S.-H.T.); (Z.Y.); (T.-Y.L.); (K.-K.L.); (Y.-M.C.); (H.-L.S.); (K.-W.I.); (K.-T.T.); (S.-M.Y.); (M.-K.T.)
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
- Correspondence: ; Tel.: +852-3442-6831
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50
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Contente ML, Marzuoli I, Iding H, Wetzl D, Puentener K, Hanlon SP, Paradisi F. Screening methods for enzyme-mediated alcohol oxidation. Sci Rep 2022; 12:3019. [PMID: 35194101 PMCID: PMC8864024 DOI: 10.1038/s41598-022-07008-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 02/10/2022] [Indexed: 11/22/2022] Open
Abstract
Alcohol oxidation for the generation of carbonyl groups, is an essential reaction for the preparation of fine chemicals. Although a number of chemical procedures have been reported, biocatalysis is a promising alternative for more sustainable and selective processes. To speed up the discovery of novel (bio)catalysts for industrial applications, efficient screening approaches need to be established. Here, we report on an enzyme-mediated alcohol oxidation screening platform to rapidly detect the activities and selectivities of three classes of biocatalysts; ketoreductases (KREDs), alcohol oxidases (AlcOXs) and laccase-mediator systems (LMSs) with diverse substrates.
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Affiliation(s)
- Martina L Contente
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freistrasse 3, 3012, Bern, Switzerland.,Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133, Milan, Italy
| | - Irene Marzuoli
- F. Hoffmann-La Roche Ltd, Process Chemistry and Catalysis (PCC), Grenzacherstrasse, 4070, Basel, Switzerland
| | - Hans Iding
- F. Hoffmann-La Roche Ltd, Process Chemistry and Catalysis (PCC), Grenzacherstrasse, 4070, Basel, Switzerland
| | - Dennis Wetzl
- F. Hoffmann-La Roche Ltd, Process Chemistry and Catalysis (PCC), Grenzacherstrasse, 4070, Basel, Switzerland
| | - Kurt Puentener
- F. Hoffmann-La Roche Ltd, Process Chemistry and Catalysis (PCC), Grenzacherstrasse, 4070, Basel, Switzerland
| | - Steven P Hanlon
- F. Hoffmann-La Roche Ltd, Process Chemistry and Catalysis (PCC), Grenzacherstrasse, 4070, Basel, Switzerland.
| | - Francesca Paradisi
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freistrasse 3, 3012, Bern, Switzerland.
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