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Feng L, Wang C, Zhang C, Zhang W, Zhu W, He Y, Xia Z, Song W. p38 MAPK inhibitor SB202190 suppresses ferroptosis in the glutamate-induced retinal excitotoxicity glaucoma model. Neural Regen Res 2024; 19:2299-2309. [PMID: 38488564 PMCID: PMC11034608 DOI: 10.4103/1673-5374.391193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/08/2023] [Accepted: 10/26/2023] [Indexed: 04/24/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202410000-00031/figure1/v/2024-02-06T055622Z/r/image-tiff Glutamate excitotoxicity has been shown to play an important role in glaucoma, and glutamate can induce ferroptosis. The p38 mitogen-activated protein kinase (MAPK) pathway inhibitor SB202190 has a potential ability to suppress ferroptosis, and its downstream targets, such as p53, have been shown to be associated with ferroptosis. However, whether ferroptosis also occurs in retinal ganglion cells in response to glutamate excitotoxicity and whether inhibition of ferroptosis reduces the loss of retinal ganglion cells induced by glutamate excitotoxicity remain unclear. This study investigated ferroptosis in a glutamate-induced glaucoma rat model and explored the effects and molecular mechanisms of SB202190 on retinal ganglion cells. A glutamate-induced excitotoxicity model in R28 cells and an N-methyl-D-aspartate-induced glaucoma model in rats were used. In vitro experiments showed that glutamate induced the accumulation of iron and lipid peroxide and morphological changes of mitochondria in R28 cells, and SB202190 inhibited these changes. Glutamate induced the levels of p-p38 MAPK/p38 MAPK and SAT1 and decreased the expression levels of ferritin light chain, SLC7A11, and GPX4. SB202190 inhibited the expression of iron death-related proteins induced by glutamate. In vivo experiments showed that SB202190 attenuated N-methyl-D-aspartate-induced damage to rat retinal ganglion cells and improved visual function. These results suggest that SB202190 can inhibit ferroptosis and protect retinal ganglion cells by regulating ferritin light chain, SAT1, and SLC7A11/Gpx4 pathways and may represent a potential retina protectant.
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Affiliation(s)
- Lemeng Feng
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Chao Wang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Cheng Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Wulong Zhang
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Weiming Zhu
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Ye He
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Zhaohua Xia
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
| | - Weitao Song
- National Clinical Research Center for Geriatric Diseases, Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Eye Center of Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
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García-Martín J, García-Abad L, Santamaría RI, Díaz M. Functional connexion of bacterioferritin in antibiotic production and morphological differentiation in Streptomyces coelicolor. Microb Cell Fact 2024; 23:234. [PMID: 39182107 PMCID: PMC11344345 DOI: 10.1186/s12934-024-02510-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 08/15/2024] [Indexed: 08/27/2024] Open
Abstract
BACKGROUND Several two-component systems of Streptomyces coelicolor, a model organism used for studying antibiotic production in Streptomyces, affect the expression of the bfr (SCO2113) gene that encodes a bacterioferritin, a protein involved in iron storage. In this work, we have studied the effect of the deletion mutant ∆bfr in S. coelicolor. RESULTS The ∆bfr mutant exhibits a delay in morphological differentiation and produces a lesser amount of the two pigmented antibiotics (actinorhodin and undecylprodigiosin) compared to the wild type on complex media. The effect of iron in minimal medium was tested in the wild type and ∆bfr mutant. Consequently, we also observed different levels of production of the two pigmented antibiotics between the two strains, depending on the iron concentration and the medium (solid or liquid) used. Contrary to expectations, no differences in intracellular iron concentration were detected between the wild type and ∆bfr mutant. However, a higher level of reactive oxygen species in the ∆bfr mutant and a higher tolerance to oxidative stress were observed. Proteomic analysis showed no variation in iron response proteins, but there was a lower abundance of proteins related to actinorhodin and ribosomal proteins, as well as others related to secondary metabolite production and differentiation. Additionally, a higher abundance of proteins related to various types of stress, such as respiration and hypoxia among others, was also revealed. Data are available via ProteomeXchange with identifier PXD050869. CONCLUSION This bacterioferritin in S. coelicolor (Bfr) is a new element in the complex regulation of secondary metabolism in S. coelicolor and, additionally, iron acts as a signal to modulate the biosynthesis of active molecules. Our model proposes an interaction between Bfr and iron-containing regulatory proteins. Thus, identifying these interactions would provide new information for improving antibiotic production in Streptomyces.
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Affiliation(s)
- Javier García-Martín
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica (IBFG), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca (USAL), C/ Zacarías González, nº 2, Salamanca, 37007, Spain
| | - Laura García-Abad
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica (IBFG), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca (USAL), C/ Zacarías González, nº 2, Salamanca, 37007, Spain
| | - Ramón I Santamaría
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica (IBFG), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca (USAL), C/ Zacarías González, nº 2, Salamanca, 37007, Spain.
| | - Margarita Díaz
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica (IBFG), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca (USAL), C/ Zacarías González, nº 2, Salamanca, 37007, Spain.
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3
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Raut RK, Bhattacharyya G, Behera RK. Gastric stability of bare and chitosan-fabricated ferritin and its bio-mineral: implication for potential dietary iron supplements. Dalton Trans 2024; 53:13815-13830. [PMID: 39109655 DOI: 10.1039/d4dt01839g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
Iron deficiency anaemia (IDA), the most widespread nutritional disorder, is a persistent global health issue affecting millions, especially in resource-limited geographies. Oral iron supplementation is usually the first choice for exogenous iron administration owing to its convenience, effectiveness and low cost. However, commercially available iron supplementations are often associated with oxidative stress, gastrointestinal side effects, infections and solubility issues. Herein, we aim to address these limitations by employing ferritin proteins-self-assembled nanocaged architectures functioning as a soluble cellular iron repository-as a non-toxic and biocompatible alternative. Our in vitro studies based on PAGE and TEM indicate that bare ferritin proteins are resistant to gastric conditions but their cage integrity is compromised under longer incubation periods and at higher concentrations of pepsin, which is a critical component of gastric juice. To ensure the safe delivery of encapsulated iron cargo, with minimal cage disintegration/degradation and iron leakage along the gastrointestinal tract, we fabricated the surface of ferritin with chitosan. Further, the stoichiometry and absorptivity of iron-chelator complexes at both gastric and circumneutral pH were estimated using Job's plot. Unlike bipyridyl, deferiprone exhibited pH dependency. In vitro kinetics was studied to evaluate iron release from bare and chitosan-fabricated ferritins employing both reductive (in the presence of ascorbate and bipyridyl) and non-reductive (direct chelation by deferiprone) pathways to determine their bio-mineral stabilities. Chitosan-decorated ferritin displayed superior cage integrity and iron retention capability over bare ferritin in simulated gastric fluid. The ability of ferritins to naturally facilitate controlled iron release in conjugation with enteric coating provided by chitosan may mitigate the aforementioned side effects and enhance iron absorption in the intestine. The results of the current study could pave the way for the development of an oral formulation based on ferritin-caged iron bio-mineral that can be a promising alternative for the treatment of IDA, offering better therapeutic outcomes.
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Affiliation(s)
- Rohit Kumar Raut
- Department of Chemistry, National Institute of Technology, Rourkela - 769008, Odisha, India.
| | - Gargee Bhattacharyya
- Department of Chemistry, National Institute of Technology, Rourkela - 769008, Odisha, India.
| | - Rabindra K Behera
- Department of Chemistry, National Institute of Technology, Rourkela - 769008, Odisha, India.
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Sheng Y, Chen Z, Cherrier MV, Martin L, Bui TTT, Li W, Lynham S, Nicolet Y, Ebrahimi KH. A Versatile Virus-Mimetic Engineering Approach for Concurrent Protein Nanocage Surface-Functionalization and Cargo Encapsulation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310913. [PMID: 38726952 DOI: 10.1002/smll.202310913] [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: 11/26/2023] [Revised: 04/26/2024] [Indexed: 08/02/2024]
Abstract
Naturally occurring protein nanocages like ferritin are self-assembled from multiple subunits. Because of their unique cage-like structure and biocompatibility, there is a growing interest in their biomedical use. A multipurpose and straightforward engineering approach does not exist for using nanocages to make drug-delivery systems by encapsulating hydrophilic or hydrophobic drugs and developing vaccines by surface functionalization with a protein like an antigen. Here, a versatile engineering approach is described by mimicking the HIV-1 Gap polyprotein precursor. Various PREcursors of nanoCages (PREC) are designed and created by linking two ferritin subunits via a flexible linker peptide containing a protease cleavage site. These precursors can have additional proteins at their N-terminus, and their protease cleavage generates ferritin-like nanocages named protease-induced nanocages (PINCs). It is demonstrated that PINC formation allows concurrent surface decoration with a protein and hydrophilic or hydrophobic drug encapsulation up to fourfold more than the amount achieved using other methods. The PINCs/Drug complex is stable and efficiently kills cancer cells. This work provides insight into the precursors' design rules and the mechanism of PINCs formation. The engineering approach and mechanistic insight described here will facilitate nanocages' applications in drug delivery or as a platform for making multifunctional therapeutics like mosaic vaccines.
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Affiliation(s)
- Yujie Sheng
- Faculty of Life Sciences and Medicine, Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, UK
| | - Zilong Chen
- Faculty of Life Sciences and Medicine, Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, UK
| | - Mickael V Cherrier
- Univ. Grenoble Alpes, CEA, CNRS, IBS, Metalloproteins Unit, Grenoble, CS 10090, France
| | - Lydie Martin
- Univ. Grenoble Alpes, CEA, CNRS, IBS, Metalloproteins Unit, Grenoble, CS 10090, France
| | - Tam T T Bui
- Randall Centre for Cell & Molecular Biophysics, King's College London, London, SE11UL, UK
| | - Wei Li
- Faculty of Life Sciences and Medicine, Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, UK
| | - Steven Lynham
- Proteomics Core Facility, James Black Centre, King's College London, London, SE5 9NU, UK
| | - Yvain Nicolet
- Univ. Grenoble Alpes, CEA, CNRS, IBS, Metalloproteins Unit, Grenoble, CS 10090, France
| | - Kourosh H Ebrahimi
- Faculty of Life Sciences and Medicine, Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, UK
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Hassan N, Yi H, Malik B, Gaspard-Boulinc L, Samaraweera SE, Casolari DA, Seneviratne J, Balachandran A, Chew T, Duly A, Carter DR, Cheung BB, Norris M, Haber M, Kavallaris M, Marshall GM, Zhang XD, Liu T, Wang J, Liebermann DA, D’Andrea RJ, Wang JY. Loss of the stress sensor GADD45A promotes stem cell activity and ferroptosis resistance in LGR4/HOXA9-dependent AML. Blood 2024; 144:84-98. [PMID: 38579286 PMCID: PMC11251412 DOI: 10.1182/blood.2024024072] [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: 01/23/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 04/07/2024] Open
Abstract
ABSTRACT The overall prognosis of acute myeloid leukemia (AML) remains dismal, largely because of the inability of current therapies to kill leukemia stem cells (LSCs) with intrinsic resistance. Loss of the stress sensor growth arrest and DNA damage-inducible 45 alpha (GADD45A) is implicated in poor clinical outcomes, but its role in LSCs and AML pathogenesis is unknown. Here, we define GADD45A as a key downstream target of G protein-coupled receptor (LGR)4 pathway and discover a regulatory role for GADD45A loss in promoting leukemia-initiating activity and oxidative resistance in LGR4/HOXA9-dependent AML, a poor prognosis subset of leukemia. Knockout of GADD45A enhances AML progression in murine and patient-derived xenograft (PDX) mouse models. Deletion of GADD45A induces substantial mutations, increases LSC self-renewal and stemness in vivo, and reduces levels of reactive oxygen species (ROS), accompanied by a decreased response to ROS-associated genotoxic agents (eg, ferroptosis inducer RSL3) and acquisition of an increasingly aggressive phenotype on serial transplantation in mice. Our single-cell cellular indexing of transcriptomes and epitopes by sequencing analysis on patient-derived LSCs in PDX mice and subsequent functional studies in murine LSCs and primary AML patient cells show that loss of GADD45A is associated with resistance to ferroptosis (an iron-dependent oxidative cell death caused by ROS accumulation) through aberrant activation of antioxidant pathways related to iron and ROS detoxification, such as FTH1 and PRDX1, upregulation of which correlates with unfavorable outcomes in patients with AML. These results reveal a therapy resistance mechanism contributing to poor prognosis and support a role for GADD45A loss as a critical step for leukemia-initiating activity and as a target to overcome resistance in aggressive leukemia.
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Affiliation(s)
- Nunki Hassan
- Cancer and Stem Cell Laboratory, School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Kolling Institute, Sydney, NSW, Australia
| | - Hangyu Yi
- Cancer and Stem Cell Laboratory, School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Kolling Institute, Sydney, NSW, Australia
| | - Bilal Malik
- Cancer and Stem Cell Laboratory, School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Kolling Institute, Sydney, NSW, Australia
| | - Lucie Gaspard-Boulinc
- Cancer and Stem Cell Laboratory, School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Kolling Institute, Sydney, NSW, Australia
- Department of Biology, Ecole Normale Supérieure, PSL University Paris, Paris, France
| | - Saumya E. Samaraweera
- Acute Leukaemia Laboratory, Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | - Debora A. Casolari
- Acute Leukaemia Laboratory, Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | - Janith Seneviratne
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Anushree Balachandran
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Tracy Chew
- Sydney Informatics Hub, Core Research Facilities, University of Sydney, Camperdown, NSW, Australia
| | - Alastair Duly
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Daniel R. Carter
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Belamy B. Cheung
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Murray Norris
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Michelle Haber
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Maria Kavallaris
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
- Australian Centre for NanoMedicine and ARC Centre of Excellence in Convergent Bio-Nano-Science and Technology, University of New South Wales, Sydney, NSW, Australia
| | - Glenn M. Marshall
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
- Kids Cancer Centre, Sydney Children’s Hospital, Randwick, NSW, Australia
| | - Xu Dong Zhang
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, NSW, Australia
- Translational Research Institute, Henan Provincial People’s Hospital and People's Hospital of Zhengzhou University, Academy of Medical Science, Zhengzhou University, Zhengzhou, Henan, China
| | - Tao Liu
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Jianlong Wang
- Department of Medicine, Columbia Center for Human Development, Columbia University Irving Medical Center, New York, NY
| | - Dan A. Liebermann
- Fels Institute for Cancer Research and Molecular Biology and Department of Medical Genetics and Molecular Biochemistry, School of Medicine, Temple University, Philadelphia, PA
| | - Richard J. D’Andrea
- Acute Leukaemia Laboratory, Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
| | - Jenny Y. Wang
- Cancer and Stem Cell Laboratory, School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Kolling Institute, Sydney, NSW, Australia
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Li Z, Yang J, Sun Y, Han S, Gong J, Zhang Y, Feng Z, Yao H, Shi P. Schisandra chinensis Bee Pollen Extract Inhibits Proliferation and Migration of Hepatocellular Carcinoma HepG2 Cells via Ferroptosis-, Wnt-, and Focal Adhesion-Signaling Pathways. Drug Des Devel Ther 2024; 18:2745-2760. [PMID: 38974120 PMCID: PMC11227337 DOI: 10.2147/dddt.s461581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 06/18/2024] [Indexed: 07/09/2024] Open
Abstract
Purpose Bee pollen possesses favorable anticancer activities. As a medicinal plant source, Schisandra chinensis bee pollen (SCBP) possesses potential pharmacological properties, such as reducing cisplatin-induced liver injury, but its anti-liver cancer effect is still rarely reported. This paper aims to investigate the effect and mechanism of SCBP extract (SCBPE) on hepatocellular carcinoma HepG2 cells. Methods The effect of SCBPE on cell proliferation and migration of HepG2 cells was evaluated based on MTT assay, morphology observation, or scratching assay. Furthermore, tandem mass tag-based quantitative proteomics was used to study the effect mechanisms. The mRNA expression levels of identified proteins were verified by RT-qPCR. Results Tandem mass tag-based quantitative proteomics showed that 61 differentially expressed proteins were obtained in the SCBPE group compared with the negative-control group: 18 significantly downregulated and 43 significantly upregulated proteins. Bioinformatic analysis showed the significantly enriched KEGG pathways were predominantly ferroptosis-, Wnt-, and hepatocellular carcinoma-signaling ones. Protein-protein interaction network analysis and RT-qPCR validation revealed SCBPE also downregulated the focal adhesion-signaling pathway, which is abrogated by PF-562271, a well-known inhibitor of FAK. Conclusion This study confirmed SCBPE suppressed the cell proliferation and migration of hepatocellular carcinoma HepG2 cells, mainly through modulation of ferroptosis-, Wnt-, hepatocellular carcinoma-, and focal adhesion-signaling pathways, providing scientific data supporting adjuvant treatment of hepatocellular carcinoma using SCBP.
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Affiliation(s)
- Zhiliang Li
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
| | - Jiali Yang
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
- College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
| | - Yang Sun
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
| | - Shuo Han
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
| | - Jietao Gong
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
| | - Yi Zhang
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
- College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
| | - Zhiyuan Feng
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
| | - Hong Yao
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, People’s Republic of China
| | - Peiying Shi
- College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
- State and Local Joint Engineering Laboratory of Natural Biotoxins, Fujian Agriculture and Forestry University, Fuzhou, 350002, People’s Republic of China
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Sun Y, Liu M, Sun W, Tang X, Zhou Y, Zhang J, Yang B. A Hemoglobin Bionics-Based System for Combating Antibiotic Resistance in Chronic Diabetic Wounds via Iron Homeostasis Regulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2405002. [PMID: 38738270 DOI: 10.1002/adma.202405002] [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: 04/07/2024] [Revised: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Owing to the increased tissue iron accumulation in patients with diabetes, microorganisms may activate high expression of iron-involved metabolic pathways, leading to the exacerbation of bacterial infections and disruption of systemic glucose metabolism. Therefore, an on-demand transdermal dosing approach that utilizes iron homeostasis regulation to combat antimicrobial resistance is a promising strategy to address the challenges associated with low administration bioavailability and high antibiotic resistance in treating infected diabetic wounds. Here, it is aimed to propose an effective therapy based on hemoglobin bionics to induce disturbances in bacterial iron homeostasis. The preferred "iron cargo" is synthesized by protoporphyrin IX chelated with dopamine and gallium (PDGa), and is delivered via a glucose/pH-responsive microneedle bandage (PDGa@GMB). The PDGa@GMB downregulates the expression levels of the iron uptake regulator (Fur) and the peroxide response regulator (perR) in Staphylococcus aureus, leading to iron nutrient starvation and oxidative stress, ultimately suppressing iron-dependent bacterial activities. Consequently, PDGa@GMB demonstrates insusceptibility to genetic resistance while maintaining sustainable antimicrobial effects (>90%) against resistant strains of both S. aureus and E. coli, and accelerates tissue recovery (<20 d). Overall, PDGa@GMB not only counteracts antibiotic resistance but also holds tremendous potential in mediating microbial-host crosstalk, synergistically attenuating pathogen virulence and pathogenicity.
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Affiliation(s)
- Yihan Sun
- Joint Laboratory of Opto, Functional Theranostics in Medicine and Chemistry, The First Hospital of Jilin University, Changchun, 130021, P. R. China
- State Key Laboratory of Supramolecular Structure and Material, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Manxuan Liu
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Weihong Sun
- Joint Laboratory of Opto, Functional Theranostics in Medicine and Chemistry, The First Hospital of Jilin University, Changchun, 130021, P. R. China
- State Key Laboratory of Supramolecular Structure and Material, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Xiaoduo Tang
- Joint Laboratory of Opto, Functional Theranostics in Medicine and Chemistry, The First Hospital of Jilin University, Changchun, 130021, P. R. China
- State Key Laboratory of Supramolecular Structure and Material, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Yanmin Zhou
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Junhu Zhang
- Joint Laboratory of Opto, Functional Theranostics in Medicine and Chemistry, The First Hospital of Jilin University, Changchun, 130021, P. R. China
- State Key Laboratory of Supramolecular Structure and Material, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Bai Yang
- Joint Laboratory of Opto, Functional Theranostics in Medicine and Chemistry, The First Hospital of Jilin University, Changchun, 130021, P. R. China
- State Key Laboratory of Supramolecular Structure and Material, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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8
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Behera N, Bhattacharyya G, Behera S, Behera RK. Iron mobilization from intact ferritin: effect of differential redox activity of quinone derivatives with NADH/O 2 and in situ-generated ROS. J Biol Inorg Chem 2024; 29:455-475. [PMID: 38780762 DOI: 10.1007/s00775-024-02058-w] [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: 01/17/2024] [Accepted: 04/10/2024] [Indexed: 05/25/2024]
Abstract
Ferritins are multimeric nanocage proteins that sequester/concentrate excess of free iron and catalytically synthesize a hydrated ferric oxyhydroxide bio-mineral. Besides functioning as the primary intracellular iron storehouses, these supramolecular assemblies also oversee the controlled release of iron to meet physiologic demands. By virtue of the reducing nature of the cytosol, reductive dissolution of ferritin-iron bio-mineral by physiologic reducing agents might be a probable pathway operating in vivo. Herein, to explore this reductive iron-release pathway, a series of quinone analogs differing in size, position/nature of substituents and redox potentials were employed to relay electrons from physiologic reducing agent, NADH, to the ferritin core. Quinones are well known natural electron/proton mediators capable of facilitating both 1/2 electron transfer processes and have been implicated in iron/nutrient acquisition in plants and energy transduction. Our findings on the structure-reactivity of quinone mediators highlight that iron release from ferritin is dictated by electron-relay capability (dependent on E1/2 values) of quinones, their molecular structure (i.e., the presence of iron-chelation sites and the propensity for H-bonding) and the type/amount of reactive oxygen species (ROS) they generate in situ. Juglone/Plumbagin released maximum iron due to their intermediate E1/2 values, presence of iron chelation sites, the ability to inhibit in situ generation of H2O2 and form intramolecular H-bonding (possibly promotes semiquinone formation). This study may strengthen our understanding of the ferritin-iron-release process and their significance in bioenergetics/O2-based cellular metabolism/toxicity while providing insights on microbial/plant iron acquisition and the dynamic host-pathogen interactions.
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Affiliation(s)
- Narmada Behera
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Gargee Bhattacharyya
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Satyabrat Behera
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Rabindra K Behera
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha, 769008, India.
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9
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Eren E, Watts NR, Montecinos F, Wingfield PT. Encapsulated Ferritin-like Proteins: A Structural Perspective. Biomolecules 2024; 14:624. [PMID: 38927029 PMCID: PMC11202242 DOI: 10.3390/biom14060624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Encapsulins are self-assembling nano-compartments that naturally occur in bacteria and archaea. These nano-compartments encapsulate cargo proteins that bind to the shell's interior through specific recognition sequences and perform various metabolic processes. Encapsulation enables organisms to perform chemical reactions without exposing the rest of the cell to potentially harmful substances while shielding cargo molecules from degradation and other adverse effects of the surrounding environment. One particular type of cargo protein, the ferritin-like protein (FLP), is the focus of this review. Encapsulated FLPs are members of the ferritin-like protein superfamily, and they play a crucial role in converting ferrous iron (Fe+2) to ferric iron (Fe+3), which is then stored inside the encapsulin in mineralized form. As such, FLPs regulate iron homeostasis and protect organisms against oxidative stress. Recent studies have demonstrated that FLPs have tremendous potential as biosensors and bioreactors because of their ability to catalyze the oxidation of ferrous iron with high specificity and efficiency. Moreover, they have been investigated as potential targets for therapeutic intervention in cancer drug development and bacterial pathogenesis. Further research will likely lead to new insights and applications for these remarkable proteins in biomedicine and biotechnology.
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Affiliation(s)
| | | | | | - Paul T. Wingfield
- Protein Expression Laboratory, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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10
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Tian B, Li X, Li W, Shi Z, He X, Wang S, Zhu X, Shi N, Li Y, Wan P, Zhu C. CRYAB suppresses ferroptosis and promotes osteogenic differentiation of human bone marrow stem cells via binding and stabilizing FTH1. Aging (Albany NY) 2024; 16:8965-8979. [PMID: 38787373 PMCID: PMC11164484 DOI: 10.18632/aging.205851] [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: 10/24/2023] [Accepted: 03/25/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Bone formation and homeostasis are greatly dependent on the osteogenic differentiation of human bone marrow stem cells (BMSCs). Therefore, revealing the mechanisms underlying osteogenic differentiation of BMSCs will provide new candidate therapeutic targets for osteoporosis. METHODS The osteogenic differentiation of BMSCs was measured by analyzing ALP activity and expression levels of osteogenic markers. Cellular Fe and ROS levels and cell viability were applied to evaluate the ferroptosis of BMSCs. qRT-PCR, Western blotting, and co-immunoprecipitation assays were harnessed to study the molecular mechanism. RESULTS The mRNA level of CRYAB was decreased in the plasma of osteoporosis patients. Overexpression of CRYAB increased the expression of osteogenic markers including OCN, OPN, RUNX2, and COLI, and also augmented the ALP activity in BMSCs, on the contrary, knockdown of CRYAB had opposite effects. IP-MS technology identified CRYAB-interacted proteins and further found that CRYAB interacted with ferritin heavy chain 1 (FTH1) and maintained the stability of FTH1 via the proteasome mechanism. Mechanically, we unraveled that CRYAB regulated FTH1 protein stability in a lactylation-dependent manner. Knockdown of FTH1 suppressed the osteogenic differentiation of BMSCs, and increased the cellular Fe and ROS levels, and eventually promoted ferroptosis. Rescue experiments revealed that CRYAB suppressed ferroptosis and promoted osteogenic differentiation of BMSCs via regulating FTH1. The mRNA level of FTH1 was decreased in the plasma of osteoporosis patients. CONCLUSIONS Downregulation of CRYAB boosted FTH1 degradation and increased cellular Fe and ROS levels, and finally improved the ferroptosis and lessened the osteogenic differentiation of BMSCs.
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Affiliation(s)
- Bo Tian
- Scientific Research Section, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Xiaolu Li
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Weiyuan Li
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Zhizhou Shi
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Xu He
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Shengyu Wang
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Xun Zhu
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Na Shi
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Yan Li
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Ping Wan
- Geriatric Department, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - Chongtao Zhu
- Laser Medical Center, The First People’s Hospital of Yunnan Province, Kunming 650032, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
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11
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Hagen WR. Quantum Magnetism of the Iron Core in Ferritin Proteins-A Re-Evaluation of the Giant-Spin Model. Molecules 2024; 29:2254. [PMID: 38792115 PMCID: PMC11123763 DOI: 10.3390/molecules29102254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 05/04/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
The electron-electron, or zero-field interaction (ZFI) in the electron paramagnetic resonance (EPR) of high-spin transition ions in metalloproteins and coordination complexes, is commonly described by a simple spin Hamiltonian that is second-order in the spin S: H=D[Sz2-SS+1/3+E(Sx2-Sy2). Symmetry considerations, however, allow for fourth-order terms when S ≥ 2. In metalloprotein EPR studies, these terms have rarely been explored. Metal ions can cluster via non-metal bridges, as, for example, in iron-sulfur clusters, in which exchange interaction can result in higher system spin, and this would allow for sixth- and higher-order ZFI terms. For metalloproteins, these have thus far been completely ignored. Single-molecule magnets (SMMs) are multi-metal ion high spin complexes, in which the ZFI usually has a negative sign, thus affording a ground state level pair with maximal spin quantum number mS = ±S, giving rise to unusual magnetic properties at low temperatures. The description of EPR from SMMs is commonly cast in terms of the 'giant-spin model', which assumes a magnetically isolated system spin, and in which fourth-order, and recently, even sixth-order ZFI terms have been found to be required. A special version of the giant-spin model, adopted for scaling-up to system spins of order S ≈ 103-104, has been applied to the ubiquitous iron-storage protein ferritin, which has an internal core containing Fe3+ ions whose individual high spins couple in a way to create a superparamagnet at ambient temperature with very high system spin reminiscent to that of ferromagnetic nanoparticles. This scaled giant-spin model is critically evaluated; limitations and future possibilities are explicitly formulated.
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Affiliation(s)
- Wilfred R Hagen
- Department of Biotechnology, Delft University of Technology, Building 58, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
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12
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Wang W, Xi H, Fu D, Ma D, Gong W, Zhao Y, Li X, Wu L, Guo Y, Zhao G, Wang H. Growth Process of Fe-O Nanoclusters with Different Sizes Biosynthesized by Protein Nanocages. J Am Chem Soc 2024; 146:11657-11668. [PMID: 38641862 DOI: 10.1021/jacs.3c13830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
All protein-directed syntheses of metal nanoclusters (NCs) and nanoparticles (NPs) have attracted considerable attention because protein scaffolds provide a unique metal coordination environment and can adjust the shape and morphology of NCs and NPs. However, the detailed formation mechanisms of NCs or NPs directed by protein templates remain unclear. In this study, by taking advantage of the ferritin nanocage as a biotemplate to monitor the growth of Fe-O NCs as a function of time, we synthesized a series of iron NCs with different sizes and shapes and subsequently solved their corresponding three-dimensional atomic-scale structures by X-ray protein crystallography and cryo-electron microscopy. The time-dependent structure analyses revealed the growth process of these Fe-O NCs with the 4-fold channel of ferritin as nucleation sites. To our knowledge, the newly biosynthesized Fe35O23Glu12 represents the largest Fe-O NCs with a definite atomic structure. This study contributes to our understanding of the formation mechanism of iron NCs and provides an effective method for metal NC synthesis.
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Affiliation(s)
- Wenming Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Hongfang Xi
- Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Dan Fu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin 300071, China
| | - Danyang Ma
- Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Wenjun Gong
- Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Yaqin Zhao
- Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Xiaomei Li
- Shanxi Provincial Key Laboratory of Protein Structure Determination, Shanxi Academy of Advanced Research and Innovation, Taiyuan 030012, China
| | - Lijie Wu
- IHuman Institute, ShanghaiTech University, Shanghai 201210, China
| | - Yu Guo
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin 300071, China
| | - Guanghua Zhao
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Hongfei Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
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13
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Xia X, Li H, Zang J, Cheng S, Du M. Advancements of the Molecular Directed Design and Structure-Activity Relationship of Ferritin Nanocage. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7629-7654. [PMID: 38518374 DOI: 10.1021/acs.jafc.3c09903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
Ferritin nanocages possess remarkable structural properties and biological functions, making them highly attractive for applications in functional materials and biomedicine. This comprehensive review presents an overview of the molecular characteristics, extraction and identification of ferritin, ferritin receptors, as well as the advancements in the directional design of high-order assemblies of ferritin and the applications based on its unique structural properties. Specifically, this Review focuses on the regulation of ferritin assembly from one to three dimensions, leveraging the symmetry of ferritin and modifications on key interfaces. Furthermore, it discusses targeted delivery of nutrition and drugs through facile loading and functional modification of ferritin. The aim of this Review is to inspire the design of micro/nano functional materials using ferritin and the development of nanodelivery vehicles for nutritional fortification and disease treatment.
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Affiliation(s)
- Xiaoyu Xia
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
- National Engineering Research Center of Seafood, Collaborative Innovation Centre of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Han Li
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
- National Engineering Research Center of Seafood, Collaborative Innovation Centre of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Jiachen Zang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Shuzhen Cheng
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
- National Engineering Research Center of Seafood, Collaborative Innovation Centre of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Ming Du
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
- National Engineering Research Center of Seafood, Collaborative Innovation Centre of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
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14
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Tan PY, Loganathan R, Teng KT, Mohd Johari SN, Lee SC, Selvaduray KR, Ngui R, Lim YAL. Supplementation of red palm olein-enriched biscuits improves levels of provitamin A carotenes, iron, and erythropoiesis in vitamin A-deficient primary schoolchildren: a double-blinded randomised controlled trial. Eur J Nutr 2024; 63:905-918. [PMID: 38240773 DOI: 10.1007/s00394-023-03314-6] [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: 07/29/2023] [Accepted: 12/18/2023] [Indexed: 03/19/2024]
Abstract
PURPOSE Vitamin A deficiency (VAD) remains a significant contributor to childhood morbidity and mortality in developing countries; therefore, the implementation of sustainable and cost-effective approaches to control VAD is of utmost pertinence. This study aims to investigate the efficacy of red palm olein (RPO)-enriched biscuit supplementation in improving vitamin A, haematological, iron, and inflammatory status among vitamin A-deficient schoolchildren. METHODS We conducted a double-blinded, randomised controlled trial involving 651 rural primary schoolchildren (8-12 years) with VAD in Malaysia. The schoolchildren were randomised to receive either RPO-enriched biscuits (experimental group, n = 334) or palm olein-enriched biscuits (control group, n = 317) for 6-month duration. RESULTS Significant improvements in retinol and retinol-binding protein 4 levels were observed in both groups after supplementation (P < 0.001). The improvement in retinol levels were similar across groups among subjects with confirmed VAD (P = 0.40). Among those with marginal VAD, greater improvement in retinol levels was recorded in the control group (P < 0.001) but lacked clinical significance. The levels of α- and β-carotenes, haematological parameters (haemoglobin, packed cell volume, mean corpuscular volume and mean corpuscular haemoglobin) and iron enhanced more significantly in the experimental group (P < 0.05). The significant reduction in the prevalence of microcytic anaemia (- 21.8%) and high inflammation (- 8.1%) was only observed in the experimental group. CONCLUSION The supplementation of RPO-enriched biscuits enhanced levels of provitamin A carotenes, iron, and erythropoiesis, and exhibited anti-inflammatory effects. Therefore, the incorporation of RPO into National Nutritional Intervention Programs may be a potential measure to improve the health status of vitamin A-deficient children, among various other interventions. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov (NCT03256123).
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Affiliation(s)
- Pei Yee Tan
- Nutrition Unit, Division of Product Development and Advisory Services, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia
- Department of Parasitology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Radhika Loganathan
- Nutrition Unit, Division of Product Development and Advisory Services, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia.
| | - Kim-Tiu Teng
- Nutrition Unit, Division of Product Development and Advisory Services, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia
| | | | - Soo Ching Lee
- Type 2 Immunity Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health, Bethesda, MD, USA
| | - Kanga Rani Selvaduray
- Nutrition Unit, Division of Product Development and Advisory Services, Malaysian Palm Oil Board, No. 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia
| | - Romano Ngui
- Department of Parasitology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
- Department of Paraclinical Sciences, Faculty of Medicine & Health Sciences, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Yvonne Ai-Lian Lim
- Department of Parasitology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
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15
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Edholm F, Nandy A, Reinhardt CR, Kastner DW, Kulik HJ. Protein3D: Enabling analysis and extraction of metal-containing sites from the Protein Data Bank with molSimplify. J Comput Chem 2024; 45:352-361. [PMID: 37873926 DOI: 10.1002/jcc.27242] [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: 08/09/2023] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/25/2023]
Abstract
Metalloenzymes catalyze a wide range of chemical transformations, with the active site residues playing a key role in modulating chemical reactivity and selectivity. Unlike smaller synthetic catalysts, a metalloenzyme active site is embedded in a larger protein, which makes interrogation of electronic properties and geometric features with quantum mechanical calculations challenging. Here we implement the ability to fetch crystallographic structures from the Protein Data Bank and analyze the metal binding sites in the program molSimplify. We show the usefulness of the newly created protein3D class to extract the local environment around non-heme iron enzymes containing a two histidine motif and prepare 372 structures for quantum mechanical calculations. Our implementation of protein3D serves to expand the range of systems molSimplify can be used to analyze and will enable high-throughput study of metal-containing active sites in proteins.
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Affiliation(s)
- Freya Edholm
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Aditya Nandy
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Clorice R Reinhardt
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - David W Kastner
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Heather J Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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16
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Gu Z, Zhong D, Hou X, Wei X, Liu C, Zhang Y, Duan Z, Gu Z, Gong Q, Luo K. Unraveling Ros Conversion Through Enhanced Enzyme-Like Activity with Copper-Doped Cerium Oxide for Tumor Nanocatalytic Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307154. [PMID: 38161213 PMCID: PMC10953536 DOI: 10.1002/advs.202307154] [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: 09/27/2023] [Revised: 12/04/2023] [Indexed: 01/03/2024]
Abstract
Nanozyme catalytic therapy for cancer treatments has become one of the heated topics, and the therapeutic efficacy is highly correlated with their catalytic efficiency. In this work, three copper-doped CeO2 supports with various structures as well as crystal facets are developed to realize dual enzyme-mimic catalytic activities, that is superoxide dismutase (SOD) to reduce superoxide radicals to H2 O2 and peroxidase (POD) to transform H2 O2 to ∙OH. The wire-shaped CeO2 /Cu-W has the richest surface oxygen vacancies, and a low level of oxygen vacancy (Vo) formation energy, which allows for the elimination of intracellular reactive oxygen spieces (ROS) and continuous transformation to ∙OH with cascade reaction. Moreover, the wire-shaped CeO2 /Cu-W displays the highest toxic ∙OH production capacity in an acidic intracellular environment, inducing breast cancer cell death and pro-apoptotic autophagy. Therefore, wire-shaped CeO2 /Cu nanoparticles as an artificial enzyme system can have great potential in the intervention of intracellular ROS in cancer cells, achieving efficacious nanocatalytic therapy.
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Affiliation(s)
- Zhengxiang Gu
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Dan Zhong
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Xingyu Hou
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Xuelian Wei
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Caikun Liu
- National Engineering Research Center for BiomaterialsSichuan University29 Wangjiang RoadChengdu610064China
| | - Yechuan Zhang
- School of Chemistry and Materials ScienceNanjing Normal UniversityNanjing210023China
| | - Zhenyu Duan
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Zhongwei Gu
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Qiyong Gong
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
- Functional and molecular imaging Key Laboratory of Sichuan Provinceand Research Unit of PsychoradiologyChinese Academy of Medical SciencesChengdu610041China
| | - Kui Luo
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
- Functional and molecular imaging Key Laboratory of Sichuan Provinceand Research Unit of PsychoradiologyChinese Academy of Medical SciencesChengdu610041China
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17
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Dhondge RH, Agrawal S, Kumar S, Acharya S, Karwa V. A Comprehensive Review on Serum Ferritin as a Prognostic Marker in Intensive Care Units: Insights Into Ischemic Heart Disease. Cureus 2024; 16:e57365. [PMID: 38694418 PMCID: PMC11061809 DOI: 10.7759/cureus.57365] [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: 03/11/2024] [Accepted: 03/31/2024] [Indexed: 05/04/2024] Open
Abstract
Serum ferritin has garnered considerable attention as a prognostic marker in intensive care units (ICUs), offering valuable insights into patient outcomes and clinical management strategies. This comprehensive review examines the role of serum ferritin in predicting outcomes among critically ill patients, with a particular focus on its implications for ischemic heart disease (IHD). Elevated serum ferritin levels have consistently been associated with adverse outcomes in ICU settings, including increased mortality, prolonged hospital stays, and higher morbidity rates. Furthermore, the relationship between serum ferritin levels and IHD underscores its potential as a biomarker for cardiovascular risk assessment in critically ill populations. The review synthesizes existing literature to highlight the predictive value of serum ferritin in assessing illness severity and guiding clinical decision-making in the ICUs. It also explores potential mechanisms linking serum ferritin to adverse outcomes and discusses implications for clinical practice. Integrating serum ferritin measurements into routine assessments could enhance prognostication and risk stratification in ICU patients, while further research is needed to elucidate optimal management strategies and therapeutic targets. Collaborative efforts between clinicians and researchers are essential to advance our understanding of serum ferritin's prognostic value in the ICUs and translate this knowledge into improved patient care and outcomes.
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Affiliation(s)
- Rushikesh H Dhondge
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sachin Agrawal
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sunil Kumar
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sourya Acharya
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Vineet Karwa
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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18
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Cao Y, Jin Z, Xi Y, Cheng J, Fang Z, Zhao Q, Weng J, Zhu J, Tang Y, Zhang Z, Jiang H. Roles of ferroptosis in type 1 diabetes induced spermatogenic dysfunction. Free Radic Biol Med 2024; 214:193-205. [PMID: 38369075 DOI: 10.1016/j.freeradbiomed.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/20/2024]
Abstract
Diabetes mellitus (DM) is a widespread metabolic disease presenting with various complications, including spermatogenic dysfunction. However, the underlying mechanisms are still unclear. Ferroptosis, a novel type of programmed cell death, is associated with much metabolic diseases. Here, we investigated the role of ferroptosis in spermatogenic dysfunction of streptozotocin (STZ)-induced type 1 diabetic mice (diabetic mice), high glucose (HG)-treated GC-2 cells (HG cells) as well as testicular tissues of diabetic patients. We found an accumulation of iron, elevated malondialdehyde level and reduced glutathione level in the testis tissues of diabetic mice and HG cells. Histological examination showed a decrease in spermatogenic cells and spermatids within the seminiferous tubules as well as mitochondrial shrinkage in the testis tissues of diabetic mice. Ferrostatin-1 (Fer-1), the inhibitor of ferroptosis, mitigated ferroptosis-associated iron overload, lipid peroxidation accumulation and spermatogenic dysfunction of diabetic mice. Furthermore, we observed a downregulation of GPX4, FTL and SLC7A11 in diabetic mice and HG cells. Fer-1 treatment and GPX4 overexpression counteracted the effects of HG on cell viability, reactive oxygen species, lipid peroxidation and glutathione via inhibition of ferroptosis. Moreover, we found an elevation of ferroptosis in testicular tissues of diabetic patients. Taken together, our results identify the crucial role of ferroptosis in diabetic spermatogenic dysfunction and ferroptosis may be a promising therapeutic target to improve spermatogenesis in diabetic patients.
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Affiliation(s)
- Yalei Cao
- Department of Urology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing, China
| | - Zirun Jin
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; Department of andrology, Peking University First Hospital, Beijing, China
| | - Yu Xi
- Department of Urology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing, China
| | - Jianxing Cheng
- Department of Urology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing, China
| | - Zishui Fang
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; Department of andrology, Peking University First Hospital, Beijing, China
| | - Qiancheng Zhao
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; Department of andrology, Peking University First Hospital, Beijing, China
| | - Jiaming Weng
- Department of Urology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing, China
| | - Jun Zhu
- Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; Department of andrology, Peking University First Hospital, Beijing, China
| | - Yanlin Tang
- Department of Urology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing, China
| | - Zhe Zhang
- Department of Urology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing, China.
| | - Hui Jiang
- Department of Urology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing, China; Department of Urology, Peking University First Hospital, Beijing, China; Institute of Urology, Peking University, Beijing, China; Department of andrology, Peking University First Hospital, Beijing, China.
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19
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Jiao R, Zhao G, Zhang T. Structural Insights into the Reaction between Hydrogen Peroxide and Di-iron Complexes at the Ferroxidase Center of Ferritin. Inorg Chem 2024; 63:3359-3365. [PMID: 38315811 DOI: 10.1021/acs.inorgchem.3c03889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
The Fe(II) oxidation mechanism in the ferroxidase center of heavy chain ferritin has been studied extensively. However, the actual production of H2O2 was found to be substantially lower than expected at low flux of Fe(II) to ferritin subunits. Here, we demonstrated that H2O2 could interact with the di-iron nuclear center, leading to the production of hydroxyl radicals and oxygen. Two reaction intermediates were captured in the ferroxidase center by using the time-lapse crystallographic techniques in a shellfish ferritin. The crystal structures revealed the binding of H2O2 as a μ -1,2-peroxo-diferric species and the binding of O2 to the diferric structure. This investigation sheds light on the reaction between the di-iron nuclear center and H2O2 and provides insights for the exploitation of metalloenzymes.
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Affiliation(s)
- Ruonan Jiao
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Guanghua Zhao
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Tuo Zhang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
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20
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Benisch R, Andreas MP, Giessen TW. A widespread bacterial protein compartment sequesters and stores elemental sulfur. SCIENCE ADVANCES 2024; 10:eadk9345. [PMID: 38306423 PMCID: PMC10836720 DOI: 10.1126/sciadv.adk9345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/03/2024] [Indexed: 02/04/2024]
Abstract
Subcellular compartments often serve to store nutrients or sequester labile or toxic compounds. As bacteria mostly do not possess membrane-bound organelles, they often have to rely on protein-based compartments. Encapsulins are one of the most prevalent protein-based compartmentalization strategies found in prokaryotes. Here, we show that desulfurase encapsulins can sequester and store large amounts of crystalline elemental sulfur. We determine the 1.78-angstrom cryo-EM structure of a 24-nanometer desulfurase-loaded encapsulin. Elemental sulfur crystals can be formed inside the encapsulin shell in a desulfurase-dependent manner with l-cysteine as the sulfur donor. Sulfur accumulation can be influenced by the concentration and type of sulfur source in growth medium. The selectively permeable protein shell allows the storage of redox-labile elemental sulfur by excluding cellular reducing agents, while encapsulation substantially improves desulfurase activity and stability. These findings represent an example of a protein compartment able to accumulate and store elemental sulfur.
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Affiliation(s)
- Robert Benisch
- Program in Chemical Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Michael P. Andreas
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Tobias W. Giessen
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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21
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Guan YM, Bai Q, Zhang Z, Wu T, Xie TZ, Wang P. A truncated triangular prism constructed by using imidazole-terpyridine building blocks. Dalton Trans 2023; 53:45-49. [PMID: 38063071 DOI: 10.1039/d3dt03217e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
The construction of low-symmetry topological supramolecular structures using bistable building blocks remains challenging. We report an unusual truncated triangular prismatic cage with D3h symmetry using a ligand with both cis- and trans-configurations upon coordination with metal. This work provides new ideas and methods for the future synthesis of low-symmetry topological supramolecules.
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Affiliation(s)
- Yu-Ming Guan
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People's Republic of China.
| | - Qixia Bai
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People's Republic of China.
| | - Zhe Zhang
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People's Republic of China.
| | - Tun Wu
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People's Republic of China.
| | - Ting-Zheng Xie
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People's Republic of China.
| | - Pingshan Wang
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People's Republic of China.
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22
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Wang Z, Wang X, Xu W, Li Y, Lai R, Qiu X, Chen X, Chen Z, Mi B, Wu M, Wang J. Translational Challenges and Prospective Solutions in the Implementation of Biomimetic Delivery Systems. Pharmaceutics 2023; 15:2623. [PMID: 38004601 PMCID: PMC10674763 DOI: 10.3390/pharmaceutics15112623] [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: 09/25/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Biomimetic delivery systems (BDSs), inspired by the intricate designs of biological systems, have emerged as a groundbreaking paradigm in nanomedicine, offering unparalleled advantages in therapeutic delivery. These systems, encompassing platforms such as liposomes, protein-based nanoparticles, extracellular vesicles, and polysaccharides, are lauded for their targeted delivery, minimized side effects, and enhanced therapeutic outcomes. However, the translation of BDSs from research settings to clinical applications is fraught with challenges, including reproducibility concerns, physiological stability, and rigorous efficacy and safety evaluations. Furthermore, the innovative nature of BDSs demands the reevaluation and evolution of existing regulatory and ethical frameworks. This review provides an overview of BDSs and delves into the multifaceted translational challenges and present emerging solutions, underscored by real-world case studies. Emphasizing the potential of BDSs to redefine healthcare, we advocate for sustained interdisciplinary collaboration and research. As our understanding of biological systems deepens, the future of BDSs in clinical translation appears promising, with a focus on personalized medicine and refined patient-specific delivery systems.
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Affiliation(s)
- Zhe Wang
- Department of Pathology, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China; (Z.W.); (R.L.)
| | - Xinpei Wang
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (X.W.); (W.X.); (Y.L.); (X.Q.); (X.C.); (Z.C.)
| | - Wanting Xu
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (X.W.); (W.X.); (Y.L.); (X.Q.); (X.C.); (Z.C.)
| | - Yongxiao Li
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (X.W.); (W.X.); (Y.L.); (X.Q.); (X.C.); (Z.C.)
| | - Ruizhi Lai
- Department of Pathology, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China; (Z.W.); (R.L.)
| | - Xiaohui Qiu
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (X.W.); (W.X.); (Y.L.); (X.Q.); (X.C.); (Z.C.)
| | - Xu Chen
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (X.W.); (W.X.); (Y.L.); (X.Q.); (X.C.); (Z.C.)
| | - Zhidong Chen
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (X.W.); (W.X.); (Y.L.); (X.Q.); (X.C.); (Z.C.)
| | - Bobin Mi
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China;
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Meiying Wu
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (X.W.); (W.X.); (Y.L.); (X.Q.); (X.C.); (Z.C.)
| | - Junqing Wang
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (X.W.); (W.X.); (Y.L.); (X.Q.); (X.C.); (Z.C.)
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23
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Sui J, Gao ML, Qian B, Liu C, Pan Y, Meng Z, Yuan D, Jiang HL. Bioinspired microenvironment modulation of metal-organic framework-based catalysts for selective methane oxidation. Sci Bull (Beijing) 2023; 68:1886-1893. [PMID: 37544879 DOI: 10.1016/j.scib.2023.07.031] [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: 05/08/2023] [Revised: 06/21/2023] [Accepted: 07/07/2023] [Indexed: 08/08/2023]
Abstract
Inspiration from natural enzymes enabling creationary catalyst design is appealing yet remains extremely challenging for selective methane (CH4) oxidation. This study presents the construction of a biomimetic catalyst platform for CH4 oxidation, which is constructed by incorporating Fe-porphyrin into a robust metal-organic framework, UiO-66, furnished with saturated monocarboxylic fatty acid bearing different long alkyl chains. The catalysts demonstrate the high efficiency in the CH4 to methanol (CH3OH) conversion at 50 °C. Moreover, the selectivity to CH3OH can be effectively regulated and promoted through a fine-tuned microenvironment by hydrophobic modification around the Fe-porphyrin. The long-chain fatty acids anchored on the Zr-oxo cluster of UiO-66 can not only tune the electronic state of the Fe sites to improve CH4 adsorption, but also restrict the amount of H2O2 around the Fe sites to reduce the overoxidation. This behavior resembles the microenvironment regulation in methane monooxygenase, resulting in high CH3OH selectivity.
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Affiliation(s)
- Jianfei Sui
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Ming-Liang Gao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Bing Qian
- National Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei 230029, China
| | - Chengyuan Liu
- National Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei 230029, China
| | - Yang Pan
- National Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei 230029, China
| | - Zheng Meng
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Daqiang Yuan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Hai-Long Jiang
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
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24
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Affatigato L, Sciortino A, Sancataldo G, Incocciati A, Piacentini R, Bonamore A, Cannas M, Messina F, Licciardi M, Militello V. Engineered Ferritin with Eu 3+ as a Bright Nanovector: A Photoluminescence Study. Photochem Photobiol 2023; 99:1218-1224. [PMID: 36484733 DOI: 10.1111/php.13759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
Ferritin nanoparticles play many important roles in theranostic and bioengineering applications and have been successfully used as nanovectors for the targeted delivery of drugs due to their ability to specifically bind the transferrin receptor (TfR1, or CD71). They can be either genetically or chemically modified for encapsulating therapeutics or probes in their inner cavity. Here, we analyzed a new engineered ferritin nanoparticle, made of the H chain mouse ferritin (HFt) fused with a specific lanthanide binding tag (LBT). The HFt-LBT has one high affinity lanthanide binding site per each of the 24 subunits and a tryptophane residue within the tag that acts as an antenna able to transfer the energy to the lanthanide ions via a LRET process. In this study, among lanthanides, we selected europium for its red emission that allows to reduce overlap with tissue auto-fluorescence. Steady state emission measurements and time-resolved emission spectroscopy have been employed to investigate the interaction between the HFt-LBT and the Eu3+ ions. This allowed us to identify the Eu3+ energy states involved in the process and to pave the way for the future use of HFt-LBT Eu3+ complex in theranostics.
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Affiliation(s)
- Luisa Affatigato
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Palermo, Italy
| | - Alice Sciortino
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Palermo, Italy
| | - Giuseppe Sancataldo
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Palermo, Italy
| | - Alessio Incocciati
- Department of Biochemistry - A. Rossi Fanelli, Sapienza University, Rome, Italy
| | - Roberta Piacentini
- Department of Biochemistry - A. Rossi Fanelli, Sapienza University, Rome, Italy
| | - Alessandra Bonamore
- Department of Biochemistry - A. Rossi Fanelli, Sapienza University, Rome, Italy
| | - Marco Cannas
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Palermo, Italy
| | - Fabrizio Messina
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Palermo, Italy
| | - Mariano Licciardi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | - Valeria Militello
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Palermo, Italy
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25
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Ganesh Kumar A, Manisha D, Nivedha Rajan N, Sujitha K, Magesh Peter D, Kirubagaran R, Dharani G. Biodegradation of phenanthrene by piezotolerant Bacillus subtilis EB1 and genomic insights for bioremediation. MARINE POLLUTION BULLETIN 2023; 194:115151. [PMID: 37453166 DOI: 10.1016/j.marpolbul.2023.115151] [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: 11/15/2022] [Revised: 04/28/2023] [Accepted: 06/04/2023] [Indexed: 07/18/2023]
Abstract
A marine strain B. subtilis EB1, isolated from Equator water, showed excellent degradation towards a wide range of hydrocarbons. Degradation studies revealed dense growth with 93 % and 83 % removal of phenanthrene within 72 h at 0.1 and 20 MPa, respectively. The identification of phenanthrene degradation metabolites by GC-MS combined with its whole genome analysis provided the pathway involved in the degradation process. Whole genome sequencing indicated a genome size of 3,983,989 bp with 4331 annotated genes. The genome provided the genetic compartments, which includes monooxygenase, dioxygenase, dehydrogenase, biosurfactant synthesis catabolic genes for the biodegradation of aromatic compounds. Detailed COG and KEGG pathway analysis confirmed the genes involved in the oxygenation reaction of hydrocarbons, piezotolerance, siderophores, chemotaxis and transporter systems which were specific to adaptation for survival in extreme marine habitat. The results of this study will be a key to design an optimal bioremediation strategy for oil contaminated extreme marine environment.
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Affiliation(s)
- A Ganesh Kumar
- Marine Biotechnology Division, National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Chennai 600100, Tamil Nadu, India.
| | - D Manisha
- Marine Biotechnology Division, National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Chennai 600100, Tamil Nadu, India
| | - N Nivedha Rajan
- Marine Biotechnology Division, National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Chennai 600100, Tamil Nadu, India
| | - K Sujitha
- Marine Biotechnology Division, National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Chennai 600100, Tamil Nadu, India
| | - D Magesh Peter
- Marine Biotechnology Division, National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Chennai 600100, Tamil Nadu, India
| | - R Kirubagaran
- Marine Biotechnology Division, National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Chennai 600100, Tamil Nadu, India
| | - G Dharani
- Marine Biotechnology Division, National Institute of Ocean Technology, Ministry of Earth Sciences (MoES), Government of India, Chennai 600100, Tamil Nadu, India
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26
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Rupa SA, Patwary MAM, Ghann WE, Abdullahi A, Uddin AKMR, Mahmud MM, Haque MA, Uddin J, Kazi M. Synthesis of a novel hydrazone-based compound applied as a fluorescence turn-on chemosensor for iron(iii) and a colorimetric sensor for copper(ii) with antimicrobial, DFT and molecular docking studies. RSC Adv 2023; 13:23819-23828. [PMID: 37564256 PMCID: PMC10411390 DOI: 10.1039/d3ra04364a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023] Open
Abstract
Hydrazone-hydrazide-based linkers perform a crucial role in environmental as well as biological fields. Such linkers are employed to detect exact metal ions at a minute level; hence, numerous probes are available. Even though thiophene-based molecules have a unique position in the medicinal arena, only very few chemosensors are reported based on such a moiety. In this current work, a novel hydrazide-hydrazone-based fluorogenic molecule 5-bromo-2-hydroxy-N'-[(1E)-1-(thiophen-2-yl)ethylidene]benzohydrazide (L) has been successfully designed and synthesized. The sensing studies of L demonstrated a ratio metric as well as turn-on-enhanced fluorescence and colorimetric response toward Fe3+ and Cu2+ ions, respectively and it was observed to be insensitive toward various metal ions. The Job plots revealed that the binding stoichiometry of L and metal ions is 2 : 1. In addition, density functional theory (DFT) results strongly suggested that L can be used as a powerful colorimetric sensor for the detection of Cu2+ ions. In vitro antimicrobial activities of L were evaluated by disk diffusion and results revealed good antibacterial activities against E. coli. Further, molecular docking was executed with DNA gyrase (PDB ID: 1KZN) of E. coli and the calculated interaction energy value was found to be -7.7 kcal mol-1. Finally, molecular docking, fluorescence, colorimetry and the HOMO-LUMO energy gap of the compound can provide new insights into developing drugs and detecting metals in biomolecules.
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Affiliation(s)
| | | | - William Emmanuel Ghann
- Center for Nanotechnology, Department of Natural Sciences, Coppin State University Baltimore USA
| | - Adams Abdullahi
- Center for Nanotechnology, Department of Natural Sciences, Coppin State University Baltimore USA
| | | | - Md Mayez Mahmud
- Tokushima University, Faculty of Pharmaceutical Science Tokushima Shi 770-0026 Japan
| | - Md Aminul Haque
- Department of Chemistry, Jagannath University Dhaka-1100 Bangladesh
| | - Jamal Uddin
- Center for Nanotechnology, Department of Natural Sciences, Coppin State University Baltimore USA
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University P.O. Box 2457 Riyadh 11451 Saudi Arabia
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27
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Fu C, Yu S, Liu Z, Wang J, Liu P, Su G. PFKFB2 Inhibits Ferroptosis in Myocardial Ischemia/Reperfusion Injury Through Adenosine Monophosphate-Activated Protein Kinase Activation. J Cardiovasc Pharmacol 2023; 82:128-137. [PMID: 37155368 DOI: 10.1097/fjc.0000000000001437] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 04/21/2023] [Indexed: 05/10/2023]
Abstract
ABSTRACT Six-phosphofructo-2-kinase/fructose-2, 6-bisphosphatase 2 (PFKFB2) is a key regulator of glycolytic enzyme. This study identified whether PFKFB2 can regulate myocardial ferroptosis in ischemia/reperfusion (I/R) injury. Mice myocardial (I/R) injury and H9c2 cells oxygen-glucose deprivation/reperfusion (OGD/R) models were established. PFKFB2 expression was enhanced in I/R mice and OGD/R H9c2 cells. Overexpression of PFKFB2 improves heart function in I/R mice. Overexpression of PFKFB2 inhibits I/R and OGD/R-induced ferroptosis in mice and H9c2 cells. Mechanistically, overexpression of PFKFB2 activates the adenosine monophosphate-activated protein kinase (AMPK). AMPK inhibitor compound C reverses effect of PFKFB2 overexpression in reducing ferroptosis under OGD/R treatment. In conclusion, PFKFB2 protects hearts against I/R-induced ferroptosis through activation of the AMPK signaling pathway.
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Affiliation(s)
- Caihua Fu
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Shengbo Yu
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhiquan Liu
- Department of Cardiology, The First Affiliated Hospital of University of Science and Technology of China (Anhui Province Hospital), Hefei, China; and
| | - Jiayu Wang
- Department of Cardiology, the Second Hospital of Shandong University, Jinan, China
| | - Ping Liu
- Department of Cardiology, the Second Hospital of Shandong University, Jinan, China
| | - Guohai Su
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
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28
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Chen H, Xie J, Hu M, Han X, Fu Y, Dai H, Ma L, Zhang Y. In vivo biosynthesis of nutritional holoferritin nanoparticles: Preparation, characterization, iron content analysis, and synthetic pathway. Food Chem 2023; 414:135692. [PMID: 36808026 DOI: 10.1016/j.foodchem.2023.135692] [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: 12/11/2022] [Revised: 01/24/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023]
Abstract
Natural holoferritin, containing average 2000 Fe3+/ferritin, has been considered as promising iron supplementary in food and medical science. However, the low extraction yields highly limited its practical application. Herein, we provided a facile strategy for holoferritin preparation through in vivo microorganism-directed biosynthesis, and the structure, iron content, and the composition of iron core have been investigated. The results revealed that in vivo biosynthesized holoferritin possesses great monodispersity and water-solubility. In addition, the in vivo biosynthesized holoferritin contains a comparative iron content as compared to natural holoferritin, giving the ratio of ∼ 2500 iron/ferritin. Besides, the composition of iron core has been identified as ferrihydrite and FeOOH, and three steps might be involved in iron core formation. This work highlighted that the microorganism-directed biosynthesis could be an efficient strategy for preparation of holoferritin, which might be beneficial for its practical application for iron supplementation.
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Affiliation(s)
- Hai Chen
- College of Food Science, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Jiang Xie
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Mengji Hu
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xueer Han
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Yu Fu
- College of Food Science, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Hongjie Dai
- College of Food Science, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Liang Ma
- College of Food Science, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Yuhao Zhang
- College of Food Science, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
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29
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Shesh BP, Connor JR. A novel view of ferritin in cancer. Biochim Biophys Acta Rev Cancer 2023; 1878:188917. [PMID: 37209958 PMCID: PMC10330744 DOI: 10.1016/j.bbcan.2023.188917] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/13/2023] [Accepted: 05/13/2023] [Indexed: 05/22/2023]
Abstract
Since its discovery more than 85 years ago, ferritin has principally been known as an iron storage protein. However, new roles, beyond iron storage, are being uncovered. Novel processes involving ferritin such as ferritinophagy and ferroptosis and as a cellular iron delivery protein not only expand our thinking on the range of contributions of this protein but present an opportunity to target these pathways in cancers. The key question we focus on within this review is whether ferritin modulation represents a useful approach for treating cancers. We discussed novel functions and processes of this protein in cancers. We are not limiting this review to cell intrinsic modulation of ferritin in cancers, but also focus on its utility in the trojan horse approach in cancer therapeutics. The novel functions of ferritin as discussed herein realize the multiple roles of ferritin in cell biology that can be probed for therapeutic opportunities and further research.
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Affiliation(s)
| | - James R Connor
- Department of Neurosurgery, Penn State Hershey Medical Center, Hershey, PA, USA.
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30
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van der Ven AM, Gyamfi H, Suttisansanee U, Ahmad MS, Su Z, Taylor RM, Poole A, Chiorean S, Daub E, Urquhart T, Honek JF. Molecular Engineering of E. coli Bacterioferritin: A Versatile Nanodimensional Protein Cage. Molecules 2023; 28:4663. [PMID: 37375226 DOI: 10.3390/molecules28124663] [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: 04/13/2023] [Revised: 05/23/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Currently, intense interest is focused on the discovery and application of new multisubunit cage proteins and spherical virus capsids to the fields of bionanotechnology, drug delivery, and diagnostic imaging as their internal cavities can serve as hosts for fluorophores or bioactive molecular cargo. Bacterioferritin is unusual in the ferritin protein superfamily of iron-storage cage proteins in that it contains twelve heme cofactors and is homomeric. The goal of the present study is to expand the capabilities of ferritins by developing new approaches to molecular cargo encapsulation employing bacterioferritin. Two strategies were explored to control the encapsulation of a diverse range of molecular guests compared to random entrapment, a predominant strategy employed in this area. The first was the inclusion of histidine-tag peptide fusion sequences within the internal cavity of bacterioferritin. This approach allowed for the successful and controlled encapsulation of a fluorescent dye, a protein (fluorescently labeled streptavidin), or a 5 nm gold nanoparticle. The second strategy, termed the heme-dependent cassette strategy, involved the substitution of the native heme with heme analogs attached to (i) fluorescent dyes or (ii) nickel-nitrilotriacetate (NTA) groups (which allowed for controllable encapsulation of a histidine-tagged green fluorescent protein). An in silico docking approach identified several small molecules able to replace the heme and capable of controlling the quaternary structure of the protein. A transglutaminase-based chemoenzymatic approach to surface modification of this cage protein was also accomplished, allowing for future nanoparticle targeting. This research presents novel strategies to control a diverse set of molecular encapsulations and adds a further level of sophistication to internal protein cavity engineering.
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Affiliation(s)
- Anton M van der Ven
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Hawa Gyamfi
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | | | - Muhammad S Ahmad
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Zhengding Su
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Robert M Taylor
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Amanda Poole
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Sorina Chiorean
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Elisabeth Daub
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Taylor Urquhart
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - John F Honek
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
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31
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Abstract
Encapsulins are a recently discovered class of prokaryotic self-assembling icosahedral protein nanocompartments measuring between 24 and 42 nm in diameter, capable of selectively encapsulating dedicated cargo proteins in vivo. They have been classified into four families based on sequence identity and operon structure, and thousands of encapsulin systems have recently been computationally identified across a wide range of bacterial and archaeal phyla. Cargo encapsulation is mediated by the presence of specific targeting motifs found in all native cargo proteins that interact with the interior surface of the encapsulin shell during self-assembly. Short C-terminal targeting peptides (TPs) are well documented in Family 1 encapsulins, while more recently, larger N-terminal targeting domains (TDs) have been discovered in Family 2. The modular nature of TPs and their facile genetic fusion to non-native cargo proteins of interest has made cargo encapsulation, both in vivo and in vitro, readily exploitable and has therefore resulted in a range of rationally engineered nano-compartmentalization systems. This review summarizes current knowledge on cargo protein encapsulation within encapsulins and highlights select studies that utilize TP fusions to non-native cargo in creative and useful ways.
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Affiliation(s)
- Jesse A Jones
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI, USA.
| | - Robert Benisch
- Program in Chemical Biology, University of Michigan, Ann Arbor, MI, USA
| | - Tobias W Giessen
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI, USA.
- Program in Chemical Biology, University of Michigan, Ann Arbor, MI, USA
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32
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Wu HW, Chen HD, Chen YH, Mao XL, Feng YY, Li SW, Zhou XB. The Effects of Programmed Cell Death of Mesenchymal Stem Cells on the Development of Liver Fibrosis. Stem Cells Int 2023; 2023:4586398. [PMID: 37214784 PMCID: PMC10195177 DOI: 10.1155/2023/4586398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/06/2023] [Accepted: 04/02/2023] [Indexed: 05/24/2023] Open
Abstract
Mesenchymal stem cells have shown noticeable potential for unlimited self-renewal. They can differentiate into specific somatic cells, integrate into target tissues via cell-cell contact, paracrine effects, exosomes, and other processes and then regulate the target cells and tissues. Studies have demonstrated that transplantation of MSCs could decrease the expression and concentration of collagen in the liver, thereby reducing liver fibrosis. A growing body of evidence indicates that apoptotic MSCs could inhibit harmful immune responses and reduce inflammatory responses more effectively than viable MSCs. Accumulating evidence suggests that mitochondrial transfer from MSCs is a novel strategy for the regeneration of various damaged cells via the rescue of their respiratory activities. This study is aimed at reviewing the functions of MSCs and the related roles of the programmed cell death of MSCs, including autophagy, apoptosis, pyroptosis, and ferroptosis, as well as the regulatory pathogenic mechanisms of MSCs in liver fibrosis. Research has demonstrated that the miR-200B-3p gene is differentially expressed gene between LF and normal liver samples, and that the miR-200B-3p gene expression is positively correlated with the degree of liver fibrosis, suggesting that MSCs could inhibit liver fibrosis through pyroptosis. It was confirmed that circulating monocytes could deliver MSC-derived immunomodulatory molecules to different sites by phagocytosis of apoptotic MSCs, thereby achieving systemic immunosuppression. Accordingly, it was suggested that characterization of the programmed cell death-mediated immunomodulatory signaling pathways in MSCs should be a focus of research.
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Affiliation(s)
- Hong-wei Wu
- Department of Infectious Diseases, Taizhou Enze Medical Center (Group) Enze Hospital, Taizhou, Zhejiang, China
| | - He-dan Chen
- Department of Infectious Diseases, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Ya-hong Chen
- Health Management Center, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Xin-li Mao
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Yu-yi Feng
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Shao-wei Li
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
- Key Laboratory of Minimally Invasive Techniques & Rapid Rehabilitation of Digestive System Tumor of Zhejiang Province, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
- Institute of Digestive Disease, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Xian-bin Zhou
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
- Institute of Digestive Disease, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
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33
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Wang C, Liu Q, Huang X, Zhuang J. Ferritin nanocages: a versatile platform for nanozyme design. J Mater Chem B 2023; 11:4153-4170. [PMID: 37158014 DOI: 10.1039/d3tb00192j] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nanozymes are a class of nanomaterials with enzyme-like activities and have attracted increasing attention due to their potential applications in biomedicine. However, nanozyme design incorporating the desired properties remains challenging. Natural or genetically engineered protein scaffolds, such as ferritin nanocages, have emerged as a promising platform for nanozyme design due to their unique protein structure, natural biomineralization capacity, self-assembly properties, and high biocompatibility. In this review, we highlight the intrinsic properties of ferritin nanocages, especially for nanozyme design. We also discuss the advantages of genetically engineered ferritin in the versatile design of nanozymes over natural ferritin. Additionally, we summarize the bioapplications of ferritin-based nanozymes based on their enzyme-mimicking activities. In this perspective, we mainly provide potential insights into the utilization of ferritin nanocages for nanozyme design.
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Affiliation(s)
- Chunyu Wang
- School of Medicine, Nankai University, Tianjin 300071, China.
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, and Frontiers Science Center for Cell Responses, Nankai University, Tianjin 300071, China.
| | - Qiqi Liu
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, and Frontiers Science Center for Cell Responses, Nankai University, Tianjin 300071, China.
| | - Xinglu Huang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, and Frontiers Science Center for Cell Responses, Nankai University, Tianjin 300071, China.
| | - Jie Zhuang
- School of Medicine, Nankai University, Tianjin 300071, China.
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34
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Williams JD, Kumar R, Afolabi JM, Park F, Adebiyi A. Rhabdomyolysis aggravates renal iron accumulation and acute kidney injury in a humanized mouse model of sickle cell disease. Free Radic Res 2023; 57:404-412. [PMID: 37840281 PMCID: PMC11259575 DOI: 10.1080/10715762.2023.2269313] [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: 05/23/2023] [Accepted: 09/29/2023] [Indexed: 10/17/2023]
Abstract
Individuals with sickle cell disease (SCD) are at greater risk of rhabdomyolysis, a potentially life-threatening condition resulting from the breakdown of skeletal muscle fibers. Acute kidney injury (AKI) is one of the most severe complications of rhabdomyolysis. Chronic kidney and cardiovascular disease, which account for SCD mortality, are long-term consequences of AKI. Although SCD elevates the risks of rhabdomyolysis-induced sudden death, the mechanisms that underlie rhabdomyolysis-induced AKI in SCD are unclear. In the present study, we show that, unlike their control non-sickling (AA) counterparts, transgenic homozygous SCD (SS; Townes model) mice exhibited 100% mortality 8-24 h after intramuscular glycerol injection. Five hours after glycerol injection, SS mice showed a more significant increase in myoglobinuria and plasma creatine kinase levels than AA mice. Basal plasma heme and kidney tissue iron levels were significantly higher in SS than in AA mice. In contrast to AA, glycerol-induced rhabdomyolysis aggravated these parameters in SS mice. Rhabdomyolysis also amplified oxidative stress in SS compared to AA mice. Glycerol-treated SS mice exhibited worse renal function, exemplified by a reduction in GFR with a corresponding increase in plasma and urinary biomarkers of early AKI and renal tubular damage. The free radical scavenger and Fenton chemistry inhibitor, TEMPOL, ameliorated rhabdomyolysis-induced AKI in the SS mice. These findings demonstrate that oxidative stress driven by renal iron accumulation amplifies rhabdomyolysis-induced AKI in SCD mice.
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Affiliation(s)
- Jada D. Williams
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Ravi Kumar
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Jeremiah M. Afolabi
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Frank Park
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Adebowale Adebiyi
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Department of Anesthesiology and Perioperative Medicine, University of Missouri, Columbia, Missouri
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35
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Wang J, Wang Q, Tang YJ, Fu HM, Fang F, Guo JS, Yan P, Chen YP. Unraveling the structure and function of bacterioferritin in Candidatus Kuenenia stuttgartiensis: Iron storage sites maintain cellular iron homeostasis. WATER RESEARCH 2023; 238:120016. [PMID: 37146397 DOI: 10.1016/j.watres.2023.120016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 04/03/2023] [Accepted: 04/27/2023] [Indexed: 05/07/2023]
Abstract
Anammox bacteria rely heavily on iron and have many iron storage sites. However, the biological significance of these iron storage sites has not been clearly defined. In this study, we explored the properties and location of iron storage sites to better understand their cellular function. To do this, the Candidatus Kuenenia stuttgartiensis iron storage protein, bacterioferritin (K.S Bfr), was successfully expressed and purified. In vitro, correctly assembled globulins were observed by transmission electron microscopy. The self-assembled K.S Bfr has active redox and can bind Fe2+ and mineralize it in the protein cavity. In vivo, engineered bacteria with K.S Bfr showed good adaptability to Fe2+, with a survival rate of 78.9% when exposed to 5 mM Fe2+, compared with only 66.0% for wild-type bacteria lacking K.S Bfr. A potential iron regulatory strategy similar to that of Anammox was identified in transcriptomic analysis of engineered bacteria. This system may be controlled by the iron uptake regulator Furto transport Fe2+ via FeoB and store excess Fe2+ in K.S Bfr to maintain cellular homeostasis. K.S Bfr has superior iron storage capacity both intracellularly and in vitro. The discovery of K.S Bfr reveals the storage location of iron-rich nanoparticles, increases our understanding of the adaptability of iron-dependent bacteria to Fe2+, and suggests possible iron regulation strategies in Anammox bacteria.
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Affiliation(s)
- Jin Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environments of MOE, Chongqing University, Chongqing, 400045, China
| | - Que Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environments of MOE, Chongqing University, Chongqing, 400045, China
| | - Yu-Jiao Tang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environments of MOE, Chongqing University, Chongqing, 400045, China
| | - Hui-Min Fu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environments of MOE, Chongqing University, Chongqing, 400045, China
| | - Fang Fang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environments of MOE, Chongqing University, Chongqing, 400045, China
| | - Jin-Song Guo
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environments of MOE, Chongqing University, Chongqing, 400045, China
| | - Peng Yan
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environments of MOE, Chongqing University, Chongqing, 400045, China
| | - You-Peng Chen
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environments of MOE, Chongqing University, Chongqing, 400045, China.
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36
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Sohn EJ, Kim JH, Oh SO, Kim JY. Regulation of self-renewal in ovarian cancer stem cells by fructose via chaperone-mediated autophagy. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166723. [PMID: 37087023 DOI: 10.1016/j.bbadis.2023.166723] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 04/24/2023]
Abstract
The chaperone-mediated autophagy (CMA) pathway is deregulated in different types of cancers; however, its role in cancer stem cells (CSCs) is unknown yet. Development of ovarian cancer, the most lethal gynecological type of cancer, involves the metastasis of CSCs to the abdominal cavity. This study aims to determine the role of CMA in ovarian CSCs. We found that the transcription factor EB (TFEB) and trehalose, a disaccharide that induces TFEB activation, enhance the expression of octamer-binding transcription factor 4 (OCT4) stem cell and lysosomal-associated membrane protein 2A (LAMP2A) CMA markers. However, trehalose did not increase the level of the LC3II macroautophagy marker in ovarian CSCs. In A2780 and SKOV3 ovarian CSCs, LAMP2A and heat shock protein 70 (HSC70) exhibited higher expression levels than in normal adherent cells. Our results showed that the silencing of the LAMP2A gene resulted in reduced sphere formation and enhanced GLUT5 expression in ovarian CSCs. Moreover, the treatment with fructose reduced sphere formation and enhanced the expression levels of LAMP2A, SOX2, and OCT4 in ovarian CSCs. The KEGG functional analysis revealed that differentially expressed genes were enriched in the ferroptosis pathway in A2780-spheroid (SP) cells after treatment with fructose. In A2780-SP and SKOV3-SP cells, the level of SLC7A11 decreased whereas FTH increased after treatment with fructose. Taken together, our results suggest that CMA is mediated in CSCs via fructose metabolism.
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Affiliation(s)
- Eun Jung Sohn
- College of Medicine, Pusan National University, Yangsan, Republic of Korea.; Inje University, 197 Injero, Gimhae 50834, Republic of Korea.
| | - Jae Ho Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Sec-Ok Oh
- Department of Anatomy, School of Medicine, Yangsan, Republic of Korea; Korea School of Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Jin-Young Kim
- The School of Korean Medicine Pusan National University, Yangsan 50612, Republic of Korea; Korea Pusan National University, Yangsan, Republic of Korea
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37
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Sánchez-Jiménez A, Marcos-Torres FJ, Llamas MA. Mechanisms of iron homeostasis in Pseudomonas aeruginosa and emerging therapeutics directed to disrupt this vital process. Microb Biotechnol 2023. [PMID: 36857468 DOI: 10.1111/1751-7915.14241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/13/2023] [Indexed: 03/03/2023] Open
Abstract
Pseudomonas aeruginosa is an opportunistic pathogen able to infect any human tissue. One of the reasons for its high adaptability and colonization of host tissues is its capacity of maintaining iron homeostasis through a wide array of iron acquisition and removal mechanisms. Due to their ability to cause life-threatening acute and chronic infections, especially among cystic fibrosis and immunocompromised patients, and their propensity to acquire resistance to many antibiotics, the World Health Organization (WHO) has encouraged the scientific community to find new strategies to eradicate this pathogen. Several recent strategies to battle P. aeruginosa focus on targeting iron homeostasis mechanisms, turning its greatest advantage into an exploitable weak point. In this review, we discuss the different mechanisms used by P. aeruginosa to maintain iron homeostasis and the strategies being developed to fight this pathogen by blocking these mechanisms. Among others, the use of iron chelators and mimics, as well as disruption of siderophore production and uptake, have shown promising results in reducing viability and/or virulence of this pathogen. The so-called 'Trojan-horse' strategy taking advantage of the siderophore uptake systems is emerging as an efficient method to improve delivery of antibiotics into the bacterial cells. Moreover, siderophore transporters are considered promising targets for the developing of P. aeruginosa vaccines.
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Affiliation(s)
- Ana Sánchez-Jiménez
- Department of Biotechnology and Environmental Protection, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Francisco J Marcos-Torres
- Department of Biotechnology and Environmental Protection, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - María A Llamas
- Department of Biotechnology and Environmental Protection, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas, Granada, Spain
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38
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Rajapaksha N, Soldano A, Yao H, Donnarumma F, Kashipathy MM, Seibold S, Battaile KP, Lovell S, Rivera M. Pseudomonas aeruginosa Dps (PA0962) Functions in H 2O 2 Mediated Oxidative Stress Defense and Exhibits In Vitro DNA Cleaving Activity. Int J Mol Sci 2023; 24:4669. [PMID: 36902100 PMCID: PMC10002758 DOI: 10.3390/ijms24054669] [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: 01/31/2023] [Revised: 02/16/2023] [Accepted: 02/25/2023] [Indexed: 03/04/2023] Open
Abstract
We report the structural, biochemical, and functional characterization of the product of gene PA0962 from Pseudomonas aeruginosa PAO1. The protein, termed Pa Dps, adopts the Dps subunit fold and oligomerizes into a nearly spherical 12-mer quaternary structure at pH 6.0 or in the presence of divalent cations at neutral pH and above. The 12-Mer Pa Dps contains two di-iron centers at the interface of each subunit dimer, coordinated by conserved His, Glu, and Asp residues. In vitro, the di-iron centers catalyze the oxidation of Fe2+ utilizing H2O2 (not O2) as an oxidant, suggesting Pa Dps functions to aid P. aeruginosa to survive H2O2-mediated oxidative stress. In agreement, a P. aeruginosa Δdps mutant is significantly more susceptible to H2O2 than the parent strain. The Pa Dps structure harbors a novel network of Tyr residues at the interface of each subunit dimer between the two di-iron centers, which captures radicals generated during Fe2+ oxidation at the ferroxidase centers and forms di-tyrosine linkages, thus effectively trapping the radicals within the Dps shell. Surprisingly, incubating Pa Dps and DNA revealed unprecedented DNA cleaving activity that is independent of H2O2 or O2 but requires divalent cations and 12-mer Pa Dps.
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Affiliation(s)
- Nimesha Rajapaksha
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Anabel Soldano
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Huili Yao
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Fabrizio Donnarumma
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Maithri M. Kashipathy
- Protein Structure and X-ray Crystallography Laboratory, University of Kansas, 2034 Becker Dr., Lawrence, KS 66047, USA
| | - Steve Seibold
- Protein Structure and X-ray Crystallography Laboratory, University of Kansas, 2034 Becker Dr., Lawrence, KS 66047, USA
| | | | - Scott Lovell
- Protein Structure and X-ray Crystallography Laboratory, University of Kansas, 2034 Becker Dr., Lawrence, KS 66047, USA
| | - Mario Rivera
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
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39
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Gehrer CM, Mitterstiller AM, Grubwieser P, Meyron-Holtz EG, Weiss G, Nairz M. Advances in Ferritin Physiology and Possible Implications in Bacterial Infection. Int J Mol Sci 2023; 24:4659. [PMID: 36902088 PMCID: PMC10003477 DOI: 10.3390/ijms24054659] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/17/2023] [Accepted: 02/25/2023] [Indexed: 03/04/2023] Open
Abstract
Due to its advantageous redox properties, iron plays an important role in the metabolism of nearly all life. However, these properties are not only a boon but also the bane of such life forms. Since labile iron results in the generation of reactive oxygen species by Fenton chemistry, iron is stored in a relatively safe form inside of ferritin. Despite the fact that the iron storage protein ferritin has been extensively researched, many of its physiological functions are hitherto unresolved. However, research regarding ferritin's functions is gaining momentum. For example, recent major discoveries on its secretion and distribution mechanisms have been made as well as the paradigm-changing finding of intracellular compartmentalization of ferritin via interaction with nuclear receptor coactivator 4 (NCOA4). In this review, we discuss established knowledge as well as these new findings and the implications they may have for host-pathogen interaction during bacterial infection.
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Affiliation(s)
- Clemens M. Gehrer
- Department of Internal Medicine II, Infectious Diseases, Immunology, Rheumatology, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Anna-Maria Mitterstiller
- Department of Internal Medicine II, Infectious Diseases, Immunology, Rheumatology, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Philipp Grubwieser
- Department of Internal Medicine II, Infectious Diseases, Immunology, Rheumatology, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Esther G. Meyron-Holtz
- Laboratory of Molecular Nutrition, Faculty of Biotechnology and Food Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Günter Weiss
- Department of Internal Medicine II, Infectious Diseases, Immunology, Rheumatology, Medical University of Innsbruck, 6020 Innsbruck, Austria
- Christian Doppler Laboratory for Iron Metabolism and Anemia Research, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Manfred Nairz
- Department of Internal Medicine II, Infectious Diseases, Immunology, Rheumatology, Medical University of Innsbruck, 6020 Innsbruck, Austria
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Čapek J, Večerek B. Why is manganese so valuable to bacterial pathogens? Front Cell Infect Microbiol 2023; 13:943390. [PMID: 36816586 PMCID: PMC9936198 DOI: 10.3389/fcimb.2023.943390] [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: 05/13/2022] [Accepted: 01/04/2023] [Indexed: 02/05/2023] Open
Abstract
Apart from oxygenic photosynthesis, the extent of manganese utilization in bacteria varies from species to species and also appears to depend on external conditions. This observation is in striking contrast to iron, which is similar to manganese but essential for the vast majority of bacteria. To adequately explain the role of manganese in pathogens, we first present in this review that the accumulation of molecular oxygen in the Earth's atmosphere was a key event that linked manganese utilization to iron utilization and put pressure on the use of manganese in general. We devote a large part of our contribution to explanation of how molecular oxygen interferes with iron so that it enhances oxidative stress in cells, and how bacteria have learned to control the concentration of free iron in the cytosol. The functioning of iron in the presence of molecular oxygen serves as a springboard for a fundamental understanding of why manganese is so valued by bacterial pathogens. The bulk of this review addresses how manganese can replace iron in enzymes. Redox-active enzymes must cope with the higher redox potential of manganese compared to iron. Therefore, specific manganese-dependent isoenzymes have evolved that either lower the redox potential of the bound metal or use a stronger oxidant. In contrast, redox-inactive enzymes can exchange the metal directly within the individual active site, so no isoenzymes are required. It appears that in the physiological context, only redox-inactive mononuclear or dinuclear enzymes are capable of replacing iron with manganese within the same active site. In both cases, cytosolic conditions play an important role in the selection of the metal used. In conclusion, we summarize both well-characterized and less-studied mechanisms of the tug-of-war for manganese between host and pathogen.
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Affiliation(s)
- Jan Čapek
- *Correspondence: Jan Čapek, ; Branislav Večerek,
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41
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Tringides ML, Zhang Z, Morgan CE, Su CC, Yu EW. A cryo-electron microscopic approach to elucidate protein structures from human brain microsomes. Life Sci Alliance 2023; 6:6/2/e202201724. [PMID: 36450447 PMCID: PMC9713474 DOI: 10.26508/lsa.202201724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 12/05/2022] Open
Abstract
We recently developed a "Build and Retrieve" cryo-electron microscopy (cryo-EM) methodology, which is capable of simultaneously producing near-atomic resolution cryo-EM maps for several individual proteins from a heterogeneous, multiprotein sample. Here we report the use of "Build and Retrieve" to define the composition of a raw human brain microsomal lysate. From this sample, we simultaneously identify and solve cryo-EM structures of five different brain enzymes whose functions affect neurotransmitter recycling, iron metabolism, glycolysis, axonal development, energy homeostasis, and retinoic acid biosynthesis. Interestingly, malfunction of these important proteins has been directly linked to several neurodegenerative disorders, such as Alzheimer's, Huntington's, and Parkinson's diseases. Our work underscores the importance of cryo-EM in facilitating tissue and organ proteomics at the atomic level.
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Affiliation(s)
- Marios L Tringides
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Zhemin Zhang
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Christopher E Morgan
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Chih-Chia Su
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Edward W Yu
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
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Ma N, Zhao Y, Li L, Kong J, Zhang X. Ferritin-Enhanced Direct MicroRNA Detection via Controlled Radical Polymerization. Anal Chem 2023; 95:1273-1279. [PMID: 36539984 DOI: 10.1021/acs.analchem.2c04063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Accurate quantitative detection of tracing nucleic acids remains a great challenge in cancer genetic testing. It is crucial to propose a low-cost and highly sensitive direct gene detection method for cancer prevention and treatment. Herein, this work reports an ultrasensitive biosensor via a ferritin-enhanced atom-transfer radical polymerization (Ft-ATRP) process. Intriguingly, microRNA-21, an early marker of lung cancer, can be detected without being transcribed in advance by an innovative signal amplification strategy using ferritin-mediated aggregation of hydrophilic nitroxide radical monomers as an electrochemical biosensor. The sensor uses peptide nucleic acid probes modified on a gold electrode to accurately bind the target lung cancer marker in the sample, and then ferritin, which is naturally present in human blood, induces Ft-ATRP on the electrode surface under mild conditions. Many of 4-methacryloyloxy-2,2,6,6-tetramethylpiperidine 1-oxyl free radical (MATMP) monomers with electrochemical signals are combined into polymeric chains to be modified on target assays. The limit of detection (LOD) of microRNA-21 is as low as 6.03 fM, and the detection concentration ranges from 0.01 to 100 pM (R2 = 0.994). The RNA biosensor can realize great performance analysis of complicated samples in simple operation, in addition, the detection process used by the catalyst, polymers containing electrochemical signals, and the electrolyte solution all have good water solubility. The superior performance of the RNA biosensor demonstrates its potential to screen and identify lung cancer in target patients.
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Affiliation(s)
- Nan Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu210094, P. R. China
| | - Yu Zhao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu210094, P. R. China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng252059, P. R. China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu210094, P. R. China
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong518060, P. R. China
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Parida A, Mohanty A, Raut RK, Padhy I, Behera RK. Modification of 4-Fold and B-Pores in Bacterioferritin from Mycobacterium tuberculosis Reveals Their Role in Fe 2+ Entry and Oxidoreductase Activity. Inorg Chem 2023; 62:178-191. [PMID: 36525578 DOI: 10.1021/acs.inorgchem.2c03156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The self-assembled ferritin nanocages, nature's solution to iron toxicity and its low solubility, scavenge free iron to synthesize hydrated ferric oxyhydroxide mineral inside their central cavity by protein-mediated ferroxidase and hydrolytic/nucleation reactions. These complex processes in ferritin commence with the rapid influx of Fe2+ ions via the inter-subunit contact points (i.e., pores/channels). Investigation of these pores as Fe2+ uptake routes in ferritins remains a subject of intense research, in iron metabolism, toxicity, and bacterial pathogenesis, which are yet to be established in the bacterioferritin (BfrA) from Mycobacterium tuberculosis (Mtb). The electrostatic properties of this protein indicate that the 4-fold and B-pores might serve as potential Fe2+ entry routes. Therefore, in the current work, electrostatics at/along these pores was altered by site-directed mutagenesis to establish their role in Fe2+ uptake/oxidation (ferroxidase activity) in Mtb BfrA. Despite forming self-assembled protein nanocompartment, these 4-fold and B-pore variants exhibited partial loss of ferroxidase activity and lower accumulation of transient species, which not only indicated their role in Fe2+ entry but also suggested the existence of multiple pathways. Although the B-pore variants inhibited the rapid ferroxidase activity to a larger extent, they had minimal impact on their cage stability. The current work revealed the relative contribution of these pores toward rapid Fe2+ uptake/oxidation and cage stability, possibly as consequences of their differential symmetry, number of modified residues (at each pore), and heme content. Therefore, these findings may help to understand the role of these pores in iron acquisition and Mtb proliferation under iron-limiting conditions to control its pathogenesis.
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Affiliation(s)
- Akankshika Parida
- Department of Chemistry, National Institute of Technology, Rourkela, 769008Odisha, India
| | - Abhinav Mohanty
- Department of Chemistry, National Institute of Technology, Rourkela, 769008Odisha, India
| | - Rohit Kumar Raut
- Department of Chemistry, National Institute of Technology, Rourkela, 769008Odisha, India
| | - Ipsita Padhy
- Department of Chemistry, National Institute of Technology, Rourkela, 769008Odisha, India
| | - Rabindra K Behera
- Department of Chemistry, National Institute of Technology, Rourkela, 769008Odisha, India
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Maity B, Ueno T. A Generalized Method for Metal Fixation in Horse Spleen L-Ferritin Cage. Methods Mol Biol 2023; 2671:135-145. [PMID: 37308643 DOI: 10.1007/978-1-0716-3222-2_8] [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: 06/14/2023]
Abstract
The naturally occurring iron storage protein, ferritin, has been recognized as an important template for preparing inorganic nanomaterials by fixation of metal ions and metal complexes into the cage. Such ferritin-based biomaterials find applications in various fields like bioimaging, drug delivery, catalysis, and biotechnology. The unique structural features with exceptional stability at high temperature up to ca. 100 °C and a wide pH range of 2-11 enable to design the ferritin cage for such interesting applications. Infiltration of metals into ferritin is one of the key steps for preparing ferritin-based inorganic bionanomaterials. Metal-immobilized ferritin cage can be directly utilized for applications or act as a precursor for synthesizing monodisperse and water-soluble nanoparticles. Considering this, herein, we have described a general protocol on how to immobilize metal into a ferritin cage and crystallize the metal composite for structure determination.
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Affiliation(s)
- Basudev Maity
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Takafumi Ueno
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan.
- Living Systems Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology, Yokohama, Japan.
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Lin S, Jin X, Gu H, Bi F. Relationships of ferroptosis-related genes with the pathogenesis in polycystic ovary syndrome. Front Med (Lausanne) 2023; 10:1120693. [PMID: 36873892 PMCID: PMC9981782 DOI: 10.3389/fmed.2023.1120693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 01/30/2023] [Indexed: 02/19/2023] Open
Abstract
Background Numerous studies have suggested that ferroptosis plays a significant role in the development of polycystic ovary syndrome (PCOS), but the mechanism remains unclear. Methods In this study, we explored the role of ferroptosis-related genes in the pathogenesis of PCOS using a comprehensive bioinformatics method. First, we downloaded several Gene Expression Omnibus (GEO) datasets and combined them into a meta-GEO dataset. Differential expression analysis was performed to screen for significant ferroptosis-related genes between the normal and PCOS samples. The least absolute shrinkage selection operator regression and support vector machine-recursive feature elimination were used to select the best signs to construct a PCOS diagnostic model. Receiver operating characteristic curve analysis and decision curve analysis were applied to test the performance of the model. Finally, a ceRNA network-related ferroptosis gene was constructed. Results Five genes, namely, NOX1, ACVR1B, PHF21A, FTL, and GALNT14, were identified from 10 differentially expressed ferroptosis-related genes to construct a PCOS diagnostic model. Finally, a ceRNA network including 117 lncRNAs, 67 miRNAs, and five ferroptosis-related genes was constructed. Conclusion Our study identified five ferroptosis-related genes that may be involved in the pathogenesis of PCOS, which may provide a novel perspective for the clinical diagnosis and treatment of PCOS.
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Affiliation(s)
- Shuang Lin
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xin Jin
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - He Gu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Fangfang Bi
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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46
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Morgan CE, Zhang Z, Miyagi M, Golczak M, Yu EW. Toward structural-omics of the bovine retinal pigment epithelium. Cell Rep 2022; 41:111876. [PMID: 36577381 PMCID: PMC9875382 DOI: 10.1016/j.celrep.2022.111876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 10/12/2022] [Accepted: 12/02/2022] [Indexed: 12/28/2022] Open
Abstract
The use of an integrated systems biology approach to investigate tissues and organs has been thought to be impracticable in the field of structural biology, where the techniques mainly focus on determining the structure of a particular biomacromolecule of interest. Here, we report the use of cryoelectron microscopy (cryo-EM) to define the composition of a raw bovine retinal pigment epithelium (RPE) lysate. From this sample, we simultaneously identify and solve cryo-EM structures of seven different RPE enzymes whose functions affect neurotransmitter recycling, iron metabolism, gluconeogenesis, glycolysis, axonal development, and energy homeostasis. Interestingly, dysfunction of these important proteins has been directly linked to several neurodegenerative disorders, including Huntington's disease, amyotrophic lateral sclerosis (ALS), Parkinson's disease, Alzheimer's disease, and schizophrenia. Our work underscores the importance of cryo-EM in facilitating tissue and organ proteomics at the atomic level.
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Affiliation(s)
- Christopher E. Morgan
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA,Department of Chemistry, Thiel College, Greenville, PA 16125, USA,These authors contributed equally
| | - Zhemin Zhang
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA,These authors contributed equally
| | - Masaru Miyagi
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Marcin Golczak
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA,Cleveland Center for Membrane and Structural Biology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Edward W. Yu
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA,Cleveland Center for Membrane and Structural Biology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA,Lead contact,Correspondence:
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Complementary Roles of Two DNA Protection Proteins from Deinococcus geothermalis. Int J Mol Sci 2022; 24:ijms24010469. [PMID: 36613913 PMCID: PMC9820295 DOI: 10.3390/ijms24010469] [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: 11/10/2022] [Revised: 12/17/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
The roles of two interrelated DNA protection protein in starved cells (Dps)-putative Dps Dgeo_0257 and Dgeo_0281-as orthologous proteins to DrDps1 for DNA binding, protection, and metal ion sensing were characterised in a Deinococcus geothermalis strain. Dgeo_0257 exhibited high DNA-binding affinity and formed a multimeric structure but lacked the conserved amino acid sequence for ferroxidase activity. In contrast, the Dgeo_0281 (DgDps1) protein was abundant in the early exponential phase, had a lower DNA-binding activity than Dgeo_0257, and was mainly observed in its monomeric or dimeric forms. Electrophoretic mobility shift assays demonstrated that both purified proteins bound nonspecifically to DNA, and their binding ability was affected by certain metal ions. For example, in the presence of ferrous and ferric ions, neither Dgeo_0257 nor Dgeo_0281 could readily bind to DNA. In contrast, both proteins exhibited more stable DNA binding in the presence of zinc and manganese ions. Mutants in which the dps gene was disrupted exhibited higher sensitivity to oxidative stress than the wild-type strain. Furthermore, the expression levels of each gene showed an opposite correlation under H2O2 treatment conditions. Collectively, these findings indicate that the putative Dps Dgeo_0257 and DgDps1 from D. geothermalis are involved in DNA binding and protection in complementary interplay ways compared to known Dps.
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Longo T, Kim S, Srivastava AK, Hurley L, Ji K, Viescas AJ, Flint N, Foucher AC, Yates D, Stach EA, Bou-Abdallah F, Papaefthymiou GC. Micromagnetic and morphological characterization of heteropolymer human ferritin cores. NANOSCALE ADVANCES 2022; 5:208-219. [PMID: 36605807 PMCID: PMC9765448 DOI: 10.1039/d2na00544a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/22/2022] [Indexed: 06/17/2023]
Abstract
The physical properties of in vitro iron-reconstituted and genetically engineered human heteropolymer ferritins were investigated. High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), electron energy-loss spectroscopy (EELS), and 57Fe Mössbauer spectroscopy were employed to ascertain (1) the microstructural, electronic, and micromagnetic properties of the nanosized iron cores, and (2) the effect of the H and L ferritin subunit ratios on these properties. Mössbauer spectroscopic signatures indicate that all iron within the core is in the high spin ferric state. Variable temperature Mössbauer spectroscopy for H-rich (H21/L3) and L-rich (H2/L22) ferritins reconstituted at 1000 57Fe/protein indicates superparamagnetic behavior with blocking temperatures of 19 K and 28 K, while HAADF-STEM measurements give average core diameters of (3.7 ± 0.6) nm and (5.9 ± 1.0) nm, respectively. Most significantly, H-rich proteins reveal elongated, dumbbell, and crescent-shaped cores, while L-rich proteins present spherical cores, pointing to a correlation between core shape and protein shell composition. Assuming an attempt time for spin reversal of τ 0 = 10-11 s, the Néel-Brown formula for spin-relaxation time predicts effective magnetic anisotropy energy densities of 6.83 × 104 J m-3 and 2.75 × 104 J m-3 for H-rich and L-rich proteins, respectively, due to differences in surface and shape contributions to magnetic anisotropy in the two heteropolymers. The observed differences in shape, size, and effective magnetic anisotropies of the derived biomineral cores are discussed in terms of the iron nucleation sites within the interior surface of the heteropolymer shells for H-rich and L-rich proteins. Overall, our results imply that site-directed nucleation and core growth within the protein cavity play a determinant role in the resulting core morphology. Our findings have relevance to iron biomineralization processes in nature and the growth of designer's magnetic nanoparticles within recombinant apoferritin nano-templates for nanotechnology.
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Affiliation(s)
- Thomas Longo
- Department of Physics, Villanova University Villanova PA USA
| | - Steve Kim
- Department of Physics, Villanova University Villanova PA USA
| | | | - Lauren Hurley
- Department of Physics, Villanova University Villanova PA USA
| | - Kaixuan Ji
- Department of Physics, Villanova University Villanova PA USA
| | | | - Nicholas Flint
- Department of Chemistry, State University of New York Potsdam NY USA
| | - Alexandre C Foucher
- Department of Materials Science and Engineering, University of Pennsylvania Philadelphia PA USA
| | - Douglas Yates
- Singh Center for Nanotechnology, University of Pennsylvania Philadelphia PA USA
| | - Eric A Stach
- Department of Materials Science and Engineering, University of Pennsylvania Philadelphia PA USA
| | - Fadi Bou-Abdallah
- Department of Chemistry, State University of New York Potsdam NY USA
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Structural and Functional Insights into the Roles of Potential Metal-Binding Sites in Apostichopus japonicus Ferritin. Polymers (Basel) 2022; 14:polym14245378. [PMID: 36559745 PMCID: PMC9785301 DOI: 10.3390/polym14245378] [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: 07/29/2022] [Revised: 08/21/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Ferritin is widely acknowledged as a conservative iron storage protein found in almost all living kingdoms. Apostichopus japonicus (Selenka) is among the oldest echinoderm fauna and has unique regenerative potential, but the catalytic mechanism of iron oxidation in A. japonicus ferritin (AjFER) remains elusive. We previously identified several potential metal-binding sites at the ferroxidase center, the three- and four-fold channels in AjFER. Herein, we prepared AjFER, AjFER-E25A/E60A/E105A, AjFER-D129A/E132A, and AjFER-E168A mutants, investigated their structures, and functionally characterized these ferritins with respect to Fe2+ uptake using X-ray techniques together with biochemical analytical methods. A crystallographic model of the AjFER-D129A/E132A mutant, which was solved to a resolution of 1.98 Å, suggested that the substitutions had a significant influence on the quaternary structure of the three-fold channel compared to that of AjFER. The structures of these ferritins in solution were determined based on the molecular envelopes of AjFER and its variants by small-angle X-ray scattering, and the structures were almost consistent with the characteristics of well-folded and globular-shaped proteins. Comparative biochemical analyses indicated that site-directed mutagenesis of metal-binding sites in AjFER presented relatively low rates of iron oxidation and thermostability, as well as weak iron-binding affinity, suggesting that these potential metal-binding sites play critical roles in the catalytic activity of ferritin. These findings provide profound insight into the structure-function relationships related to marine invertebrate ferritins.
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Liu H, Mo T, Zhou Y, Gong H, Zhao D. Electron-rich silicon quantum dots-based charge transfer probe for highly selective chemiluminescence detection of Fe2+ in PM2.5. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108106] [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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