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Mao Z, Zhang H, Cai W, Yang Y, Zhang X, Jiang F, Li G. NhaA facilitates the maintenance of bacterial envelope integrity and the evasion of complement attack contributing to extraintestinal pathogenic Escherichia coli virulence. Infect Immun 2023; 91:e0003923. [PMID: 37815368 PMCID: PMC10652942 DOI: 10.1128/iai.00039-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 09/01/2023] [Indexed: 10/11/2023] Open
Abstract
Extraintestinal pathogenic Escherichia coli (ExPEC) is responsible for severe bloodstream infections in humans and animals. However, the mechanisms underlying ExPEC's serum resistance remain incompletely understood. Through the transposon-directed insertion-site sequencing approach, our previous study identified nhaA, the gene encoding a Na+/H+ antiporter, as a crucial factor for infection in vivo. In this study, we investigated the role of NhaA in ExPEC virulence utilizing both in vitro models and systemic infection models involving avian and mammalian animals. Genetic mutagenesis analysis revealed that nhaA deletion resulted in filamentous bacterial morphology and rendered the bacteria more susceptible to sodium dodecyl sulfate, suggesting the role of nhaA in maintaining cell envelope integrity. The nhaA mutant also displayed heightened sensitivity to complement-mediated killing compared to the wild-type strain, attributed to augmented deposition of complement components (C3b and C9). Remarkably, NhaA played a more crucial role in virulence compared to several well-known factors, including Iss, Prc, NlpI, and OmpA. Our findings revealed that NhaA significantly enhanced virulence across diverse human ExPEC prototype strains within B2 phylogroups, suggesting widespread involvement in virulence. Given its pivotal role, NhaA could serve as a potential drug target for tackling ExPEC infections.
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Affiliation(s)
- Zhao Mao
- Key Laboratory of Veterinary Public Health of Ministry of Agriculture, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Haobo Zhang
- National Animal Tuberculosis Reference Laboratory, Division of Zoonoses Surveillance, China Animal Health and Epidemiology Center, Qingdao, China
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - Wentong Cai
- Key Laboratory of Veterinary Public Health of Ministry of Agriculture, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yan Yang
- Key Laboratory of Veterinary Public Health of Ministry of Agriculture, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xinyang Zhang
- Key Laboratory of Veterinary Public Health of Ministry of Agriculture, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Fengwei Jiang
- Key Laboratory of Veterinary Public Health of Ministry of Agriculture, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Ganwu Li
- Key Laboratory of Veterinary Public Health of Ministry of Agriculture, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
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Zou S, Yuan T, Lu T, Yan J, Kang D, Li D. Human Disturbance Increases Health Risks to Golden Snub-Nosed Monkeys and the Transfer Risk of Pathogenic Antibiotic-Resistant Bacteria from Golden Snub-Nosed Monkeys to Humans. Animals (Basel) 2023; 13:3083. [PMID: 37835689 PMCID: PMC10572025 DOI: 10.3390/ani13193083] [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: 07/15/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
From the perspective of interactions in the human-animal-ecosystem, the study and control of pathogenic bacteria that can cause disease in animals and humans is the core content of "One Health". In order to test the effect of human disturbance (HD) on the health risk of pathogenic antibiotic-resistant bacteria (PARBs) to wild animals and transfer risk of the PARBs from wild animals to humans, golden snub-nosed monkeys (Rhinopithecus roxellana) were used as sentinel animals. Metagenomic analysis was used to analyze the characteristics of PARBs in the gut microbiota of golden snub-nosed monkeys. Then, the total contribution of antibiotic resistance genes (ARGs) and virulence factors (VFs) of the PARBs were used to assess the health risk of PARBs to golden snub-nosed monkeys, and the antimicrobial drug resistance and bacterial infectious disease of PARBs were determined to assess the transfer risk of PARBs from golden snub-nosed monkeys to humans. There were 18 and 5 kinds of PARBs in the gut microbiota of golden snub-nosed monkeys under HD (HD group) and wild habitat environments (W group), respectively. The total health risks of PARBs to the W group and the HD group were -28.5 × 10-3 and 125.8 × 10-3, respectively. There were 12 and 16 kinds of KEGG pathways of human diseases in the PARBs of the W group and the HD group, respectively, and the gene numbers of KEGG pathways in the HD group were higher than those in the W group. HD increased the pathogenicity of PARBs to golden snub-nosed monkeys, and the PARBs in golden snub-nosed monkeys exhibited resistance to lincosamide, aminoglycoside, and streptogramin antibiotics. If these PARBs transfer from golden snub-nosed monkeys to humans, then humans may acquire symptoms of pathogens including Tubercle bacillus, Staphylococcus, Streptococcus, Yersinia, Pertussis, and Vibrio cholera.
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Affiliation(s)
- Shuzhen Zou
- Key Laboratory of Southwest China Wildlife Resources Conservation of Ministry of Education, China West Normal University, 1# Shida Road, Nanchong 637009, China
- Key Laboratory of Conservation Biology of Rhinopithecus Roxellana at China West Normal University of Sichuan Province, China West Normal University, 1# Shida Road, Nanchong 637009, China
| | - Tingting Yuan
- Key Laboratory of Southwest China Wildlife Resources Conservation of Ministry of Education, China West Normal University, 1# Shida Road, Nanchong 637009, China
| | - Tan Lu
- Key Laboratory of Southwest China Wildlife Resources Conservation of Ministry of Education, China West Normal University, 1# Shida Road, Nanchong 637009, China
| | - Jiayu Yan
- Key Laboratory of Southwest China Wildlife Resources Conservation of Ministry of Education, China West Normal University, 1# Shida Road, Nanchong 637009, China
| | - Di Kang
- Key Laboratory of Southwest China Wildlife Resources Conservation of Ministry of Education, China West Normal University, 1# Shida Road, Nanchong 637009, China
- Liziping Giant Panda's Ecology and Conservation Observation and Research Station of Sichuan Province, Science and Technology Department of Sichuan Province, Chengdu 611233, China
| | - Dayong Li
- Key Laboratory of Southwest China Wildlife Resources Conservation of Ministry of Education, China West Normal University, 1# Shida Road, Nanchong 637009, China
- Key Laboratory of Conservation Biology of Rhinopithecus Roxellana at China West Normal University of Sichuan Province, China West Normal University, 1# Shida Road, Nanchong 637009, China
- Liziping Giant Panda's Ecology and Conservation Observation and Research Station of Sichuan Province, Science and Technology Department of Sichuan Province, Chengdu 611233, China
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3
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Guo F, Wang M, Huang M, Jiang Y, Gao Q, Zhu D, Wang M, Jia R, Chen S, Zhao X, Yang Q, Wu Y, Zhang S, Huang J, Tian B, Ou X, Mao S, Sun D, Cheng A, Liu M. Manganese Efflux Achieved by MetA and MetB Affects Oxidative Stress Resistance and Iron Homeostasis in Riemerella anatipestifer. Appl Environ Microbiol 2023; 89:e0183522. [PMID: 36815770 PMCID: PMC10057955 DOI: 10.1128/aem.01835-22] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/29/2023] [Indexed: 02/24/2023] Open
Abstract
In bacteria, manganese homeostasis is controlled by import, regulation, and efflux. Here, we identified 2 Mn exporters, MetA and MetB (manganese efflux transporters A and B), in Riemerella anatipestifer CH-1, encoding a putative cation diffusion facilitator (CDF) protein and putative resistance-nodulation-division (RND) efflux pump, respectively. Compared with the wild type (WT), ΔmetA, ΔmetB, and ΔmetAΔmetB exhibited sensitivity to manganese, since they accumulated more intracellular Mn2+ than the WT under excess manganese conditions, while the amount of iron in the mutants was decreased. Moreover, ΔmetA, ΔmetB, and ΔmetAΔmetB were more sensitive to the oxidant NaOCl than the WT. Further study showed that supplementation with iron sources could alleviate manganese toxicity and that excess manganese inhibited bacterial cell division. RNA-Seq showed that manganese stress resulted in the perturbation of iron metabolism genes, further demonstrating that manganese efflux is critical for iron homeostasis. metA transcription was upregulated under excess manganese but was not activated by MetR, a DtxR family protein, although MetR was also involved in manganese detoxification, while metB transcription was downregulated under iron depletion conditions and in fur mutants. Finally, homologues of MetA and MetB were found to be mainly distributed in members of Flavobacteriaceae. Specifically, MetB represents a novel manganese exporter in Gram-negative bacteria. IMPORTANCE Manganese is required for the function of many proteins in bacteria, but in excess, manganese can mediate toxicity. Therefore, the intracellular levels of manganese must be tightly controlled. Manganese efflux transporters have been characterized in some other bacteria; however, their homologues could not be found in the genome of Riemerella anatipestifer through sequence comparison. This indicated that other types of manganese efflux transporters likely exist. In this study, we characterized 2 transporters, MetA and MetB, that mediate manganese efflux in R. anatipestifer in response to manganese overload. MetA encodes a putative cation diffusion facilitator (CDF) protein, which has been characterized as a manganese transporter in other bacteria, while this is the first observation of a putative resistance-nodulation-division (RND) transporter contributing to manganese export in Gram-negative bacteria. In addition, the mechanism of manganese toxicity was studied by observing morphological changes and by transcriptome sequencing. Taken together, these results are important for expanding our understanding of manganese transporters and revealing the mechanism of manganese toxicity.
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Affiliation(s)
- Fang Guo
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Mengying Wang
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Mi Huang
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Yin Jiang
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Qun Gao
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Dekang Zhu
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Mingshu Wang
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Renyong Jia
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Shun Chen
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Xinxin Zhao
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Qiao Yang
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Ying Wu
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Shaqiu Zhang
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Juan Huang
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Bin Tian
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Xumin Ou
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Sai Mao
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Di Sun
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Anchun Cheng
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
| | - Mafeng Liu
- Institute of Preventive Veterinary Medicine, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Research Centre of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China
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Makvandi P, Song H, Yiu CKY, Sartorius R, Zare EN, Rabiee N, Wu WX, Paiva-Santos AC, Wang XD, Yu CZ, Tay FR. Bioengineered materials with selective antimicrobial toxicity in biomedicine. Mil Med Res 2023; 10:8. [PMID: 36829246 PMCID: PMC9951506 DOI: 10.1186/s40779-023-00443-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/31/2023] [Indexed: 02/26/2023] Open
Abstract
Fungi and bacteria afflict humans with innumerous pathogen-related infections and ailments. Most of the commonly employed microbicidal agents target commensal and pathogenic microorganisms without discrimination. To distinguish and fight the pathogenic species out of the microflora, novel antimicrobials have been developed that selectively target specific bacteria and fungi. The cell wall features and antimicrobial mechanisms that these microorganisms involved in are highlighted in the present review. This is followed by reviewing the design of antimicrobials that selectively combat a specific community of microbes including Gram-positive and Gram-negative bacterial strains as well as fungi. Finally, recent advances in the antimicrobial immunomodulation strategy that enables treating microorganism infections with high specificity are reviewed. These basic tenets will enable the avid reader to design novel approaches and compounds for antibacterial and antifungal applications.
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Affiliation(s)
- Pooyan Makvandi
- Istituto Italiano di Tecnologia, Centre for Materials Interfaces, Pontedera, 56025, Italy. .,The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, Zhejiang, China.
| | - Hao Song
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Cynthia K Y Yiu
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China
| | - Rossella Sartorius
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), 80131, Naples, Italy
| | | | - Navid Rabiee
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia.,Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA, 6150, Australia
| | - Wei-Xi Wu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, 3000-548, Coimbra, Portugal.,REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, 3000-548, Coimbra, Portugal
| | - Xiang-Dong Wang
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University Shanghai Medical College, Shanghai, 200032, China
| | - Cheng-Zhong Yu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia.,School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Franklin R Tay
- The Graduate School, Augusta University, Augusta, GA, 30912, USA.
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A Comprehensive Overview of the Antibiotics Approved in the Last Two Decades: Retrospects and Prospects. Molecules 2023; 28:molecules28041762. [PMID: 36838752 PMCID: PMC9962477 DOI: 10.3390/molecules28041762] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/25/2023] [Accepted: 02/08/2023] [Indexed: 02/15/2023] Open
Abstract
Due to the overuse of antibiotics, bacterial resistance has markedly increased to become a global problem and a major threat to human health. Fortunately, in recent years, various new antibiotics have been developed through both improvements to traditional antibiotics and the discovery of antibiotics with novel mechanisms with the aim of addressing the decrease in the efficacy of traditional antibiotics. This manuscript reviews the antibiotics that have been approved for marketing in the last 20 years with an emphasis on the antibacterial properties, mechanisms, structure-activity relationships (SARs), and clinical safety of these antibiotics. Furthermore, the current deficiencies, opportunities for improvement, and prospects of antibiotics are thoroughly discussed to provide new insights for the design and development of safer and more potent antibiotics.
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Vertebral Bone Marrow Clot towards the Routine Clinical Scenario in Spine Surgeries: What about the Antimicrobial Properties? Int J Mol Sci 2023; 24:ijms24021744. [PMID: 36675259 PMCID: PMC9865225 DOI: 10.3390/ijms24021744] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/30/2022] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Exploring innovative techniques and treatments to improve spinal fusion procedures is a global challenge. Here, we provide a scientific opinion on the ability of a vertebral bone marrow (vBM) clot to provide a local combined delivery system not only of stem cells, signaling biomolecules and anti-inflammatory factors but also of molecules and proteins endowed with antimicrobial properties. This opinion is based on the evaluation of the intrinsic basic properties of the vBM, that contains mesenchymal stem cells (MSCs), and on the coagulation process that led to the conversion of fibrinogen into fibrin fibers that enmesh cells, plasma but above all platelets, to form the clot. We emphasize that vBM clot, being a powerful source of MSCs and platelets, would allow the release of antimicrobial proteins and molecules, mainly cathelicidin LL- 37, hepcidin, kinocidins and cationic host defense peptides, that are per se gifted with direct and/or indirect antimicrobial effects. We additionally highlight that further studies are needed to deepen this knowledge and to propose vBM clot as multifunctional bioscaffold able to target all the main key challenges for spinal fusion surgery.
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Bochani S, Kalantari-Hesari A, Haghi F, Alinezhad V, Bagheri H, Makvandi P, Shahbazi MA, Salimi A, Hirata I, Mattoli V, Maleki A, Guo B. Injectable Antibacterial Gelatin-Based Hydrogel Incorporated with Two-Dimensional Nanosheets for Multimodal Healing of Bacteria-Infected Wounds. ACS APPLIED BIO MATERIALS 2022; 5:4435-4453. [PMID: 36066957 DOI: 10.1021/acsabm.2c00567] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The design and development of multifunctional injectable hydrogels with high photothermal antibacterial activity and shape adaptability to accelerate bacteria-infected wound healing is of critical importance in clinical applications. In this study, a hybrid hydrogel composed of gelatin, iron, and MnO2 nanosheets was prepared by multiple interactions, including coordinative and hydrogen bonding as well as electrostatic attraction. The introduced MnO2 and Fe components made the hydrogels photothermally and chemodynamically active, thereby endowing them with potent antibacterial capabilities against both Gram-negative and Gram-positive bacteria. Because of the Fenton activity of the hydrogels, they could produce abandoned oxygen, which is highly crucial in the healing process of wounds. They also showed good cytocompatibility and hemocompatibility as well as high hemostatic properties. Moreover, the injectable hydrogels could fill irregular wounds and significantly accelerate bacteria-infected wound healing through decreasing the inflammatory response and increasing blood vessels. These features indicated the promising potential of the multifunctional hydrogel for healing infected full-thickness wounds.
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Affiliation(s)
- Shayesteh Bochani
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan 45139-56184, Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan 45139-56184, Iran
| | - Ali Kalantari-Hesari
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamadan 6516738695, Iran
| | - Fakhri Haghi
- Department of Microbiology, School of Medicine, Zanjan University of Medical Sciences, Zanjan 45139-56184, Iran
| | - Vajihe Alinezhad
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan 45139-56184, Iran
| | - Hadi Bagheri
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan 45139-56184, Iran
| | - Pooyan Makvandi
- Istituto Italiano di Tecnologia, Centre for Materials Interface, viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Abdollah Salimi
- Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - Ikue Hirata
- Istituto Italiano di Tecnologia, Centre for Materials Interface, viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy
| | - Virgilio Mattoli
- Istituto Italiano di Tecnologia, Centre for Materials Interface, viale Rinaldo Piaggio 34, Pontedera, Pisa 56025, Italy
| | - Aziz Maleki
- Zanjan Pharmaceutical Nanotechnology Research Center (ZPNRC), Zanjan 45139-56184, Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan 45139-56184, Iran
| | - Baolin Guo
- Frontier Institute of Science and Technology and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Shaanxi 710049, China
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Marchetti M, Gomez-Rosas P, Russo L, Gamba S, Sanga E, Verzeroli C, Ambaglio C, Schieppati F, Restuccia F, Bonanomi E, Rizzi M, Fagiuoli S, D’Alessio A, Gerotziafas GT, Lorini L, Falanga A. Fibrinolytic Proteins and Factor XIII as Predictors of Thrombotic and Hemorrhagic Complications in Hospitalized COVID-19 Patients. Front Cardiovasc Med 2022; 9:896362. [PMID: 35757331 PMCID: PMC9226333 DOI: 10.3389/fcvm.2022.896362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/09/2022] [Indexed: 12/12/2022] Open
Abstract
Introduction In a prospective cohort of hospitalized COVID-19 patients, an extensive characterization of hemostatic alterations by both global and specific assays was performed to clarify mechanisms underlying the coagulopathy and identify predictive factors for thrombotic and hemorrhagic events during hospitalization. Materials and Methods Intensive care unit (ICU; n = 46) and non-ICU (n = 55) patients were enrolled, and the occurrence of thrombotic and hemorrhagic events was prospectively monitored. At study inclusion, thromboelastometry together with the measurement of specific coagulation proteins and hypercoagulation markers was performed. Results Patients (median age 67 years) showed significantly shorter clot formation time together with greater maximum clot firmness by thromboelastometry, increased levels of F1 + 2 and D-dimer, as biomarkers of hypercoagulability, and of procoagulant factors V, VIII, IX, XI, and fibrinogen, while FXIII was significantly reduced. The concentration of fibrinolytic proteins, tissue plasminogen activator (t-PA) and plasminogen activator inhibitor type 1 (PAI-1) were elevated in the overall cohort of patients. Many of these hemostatic alterations were significantly greater in ICU compared to non-ICU subjects and, furthermore, they were associated with inflammatory biomarker elevation [i.e., interleukin 6 (IL-6), C-reactive protein (CRP), neutrophil to lymphocyte ratio (NLR), and procalcitonin]. After enrollment, 7 thrombosis and 14 major bleedings occurred. Analysis of clinical and biological data identified increased t-PA, PAI-1, and NLR values as independent predictive factors for thrombosis, while lower FXIII levels were associated with bleeding. Conclusion This study demonstrates alterations in all different hemostatic compartments analyzed, particularly in severe COVID-19 conditions, that strongly correlated with the inflammatory status. A potential role of fibrinolytic proteins together with NLR and of FXIII as predictors of thrombotic and hemorrhagic complications, respectively, is highlighted.
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Affiliation(s)
- Marina Marchetti
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
- *Correspondence: Marina Marchetti,
| | - Patricia Gomez-Rosas
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
- Hematology Service, Hospital General Regional Tecamac Instituto Mexicano del Seguro Social (IMSS), Mexico, Mexico
| | - Laura Russo
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Sara Gamba
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Eleonora Sanga
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Cristina Verzeroli
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Chiara Ambaglio
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Francesca Schieppati
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Francesco Restuccia
- Department of Anesthesiology and Critical Care Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Ezio Bonanomi
- Department of Anesthesiology and Critical Care Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Marco Rizzi
- Unit of Infectious Diseases, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Stefano Fagiuoli
- Department of Internal Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Andrea D’Alessio
- Medical Oncology and Internal Medicine, Policlinico San Marco – Gruppo San Donato, Bergamo, Italy
| | - Grigorios T. Gerotziafas
- Sorbonne Université, INSERM UMR_S938, Research Group “Cancer-Hemostasis-Angiogenesis”, Centre de Recherche Saint-Antoine, Institut Universitaire de Cancérologie, Paris, France
| | - Luca Lorini
- Department of Anesthesiology and Critical Care Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Anna Falanga
- Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
- School of Medicine and Surgery, University of Milano Bicocca, Milan, Italy
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9
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Masters TL, Bhagwate AV, Dehankar MK, Greenwood-Quaintance KE, Abdel MP, Mandrekar JN, Patel R. Human transcriptomic response to periprosthetic joint infection. Gene 2022; 825:146400. [PMID: 35306116 DOI: 10.1016/j.gene.2022.146400] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/17/2021] [Accepted: 03/04/2022] [Indexed: 11/17/2022]
Abstract
Periprosthetic joint infection (PJI), a devastating complication of total joint replacement, is of incompletely understood pathogenesis and may sometimes be challenging to clinically distinguish from other causes of arthroplasty failure. We characterized human gene expression in 93 specimens derived from surfaces of resected arthroplasties, comparing transcriptomes of subjects with infection- versus non-infection-associated arthroplasty failure. Differential gene expression analysis confirmed 28 previously reported potential biomarkers of PJI, including bactericidal/permeability increasing protein (BPI), cathelicidin antimicrobial peptide (CAMP), C-C-motif chemokine ligand 3 (CCL3), 4(CCL4) and C-X-C-motif chemokine ligand 2 (CXCL2), colony stimulating factor 2 receptor beta (CSF2RB), colony stimulating factor 3 (CSF3), alpha-defensin (DEFA4), Fc fragment of IgG receptor 1B (CD64B), intercellular adhesion molecule 1 (ICAM1), interferon gamma (IFNG), interleukin 13 receptor subunit alpha 2 (IL13RA2), interleukin 17D (IL17D), interleukin 1 (IL1A, IL1B, IL1RN), interleukin 2 receptors (IL2RA, IL2RG), interleukin 5 receptor (IL5RA), interleukin 6 (IL6), interleukin 8 (IL8), lipopolysaccharide binding protein (LBP), lipocalin (LCN2), lactate dehydrogenase C (LDHC), lactotransferrin (LTF), matrix metallopeptidase 3 (MMP3), peptidase inhibitor 3 (PI3), and vascular endothelial growth factor A (VEGFA), and identified three novel molecules of potential diagnostic use for detection of PJI, namely C-C-motif chemokine ligand CCL20, coagulation factor VII (F7), and B cell receptor FCRL4. Comparative analysis of infections caused by staphylococci versus bacteria other than staphylococci and Staphylococcus aureus versus Staphylococcus epidermidis showed elevated expression of interleukin 13 (IL13), IL17D, and MMP3 in staphylococcal infections, and of IL1B, IL8, and platelet factor PF4V1 in S. aureus compared to S. epidermidis infections. Pathway analysis of over-represented genes suggested activation of host immune response and cellular maintenance and repair functions in response to invasion of infectious agents. The data presented provides new potential targets for diagnosis of PJI and for differentiation of PJI caused by different infectious agents.
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Affiliation(s)
- Thao L Masters
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States
| | - Aditya V Bhagwate
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, United States
| | - Mrunal K Dehankar
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, United States
| | - Kerryl E Greenwood-Quaintance
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Jay N Mandrekar
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, United States
| | - Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States; Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, MN, United States.
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10
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Cui X, Lü Y, Yue C. Development and Research Progress of Anti-Drug Resistant Bacteria Drugs. Infect Drug Resist 2022; 14:5575-5593. [PMID: 34992385 PMCID: PMC8711564 DOI: 10.2147/idr.s338987] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/12/2021] [Indexed: 01/10/2023] Open
Abstract
Bacterial resistance has become increasingly serious because of the widespread use and abuse of antibiotics. In particular, the emergence of multidrug-resistant bacteria has posed a serious threat to human public health and attracted the attention of the World Health Organization (WHO) and the governments of various countries. Therefore, the establishment of measures against bacterial resistance and the discovery of new antibacterial drugs are increasingly urgent to better contain the emergence of bacterial resistance and provide a reference for the development of new antibacterial drugs. In this review, we discuss some antibiotic drugs that have been approved for clinical use and a partial summary of the meaningful research results of anti-drug resistant bacterial drugs in different fields, including the antibiotic drugs approved by the FDA from 2015 to 2020, the potential drugs against drug-resistant bacteria, the new molecules synthesized by chemical modification, combination therapy, drug repurposing, immunotherapy and other therapies.
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Affiliation(s)
- Xiangyi Cui
- Key Laboratory of Microbial Drugs Innovation and Transformation of Yan'an, School of Basic Medicine, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Yuhong Lü
- Key Laboratory of Microbial Drugs Innovation and Transformation of Yan'an, School of Basic Medicine, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China.,Shaanxi Engineering & Technological Research Center for Conversation & Utilization of Regional Biological Resources, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
| | - Changwu Yue
- Key Laboratory of Microbial Drugs Innovation and Transformation of Yan'an, School of Basic Medicine, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China.,Shaanxi Engineering & Technological Research Center for Conversation & Utilization of Regional Biological Resources, Yan'an University, Yan'an, 716000, Shaanxi, People's Republic of China
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11
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Wu C, Shen L, Lu Y, Hu C, Liang Z, Long L, Ning N, Chen J, Guo Y, Yang Z, Hu X, Zhang J, Wang Y. Intrinsic Antibacterial and Conductive Hydrogels Based on the Distinct Bactericidal Effect of Polyaniline for Infected Chronic Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52308-52320. [PMID: 34709801 DOI: 10.1021/acsami.1c14088] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Most chronic wounds suffer from infections, and their treatment is challenging. The usage of antibiotics may lead to bacterial resistance and adverse side effects. Positively charged substances have shown promise, but their applications are usually limited by certain cytotoxicity or complex synthesis. Doped polyaniline that carries a high density of positive charges would be a promising candidate due to its good biocompatibility and easy availability, but its interaction with bacteria has not been elucidated. Herein, the distinct bactericidal effect of polyaniline against Gram-positive bacteria has been verified. The antibacterial activity may result from the specific interaction with lipoteichoic acid to destroy the Gram-positive bacterial cell wall. Polyaniline and a macromolecular dopant (sulfonated hyaluronic acid) are used to construct a flexible hydrogel with skin-mimic electrical conductivity. The in vivo results demonstrate that electrical stimulation (ES) through this hydrogel is superior to ES via separated electrodes (the ES strategy used clinically) for promoting infected chronic wound healing.
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Affiliation(s)
- Can Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Lu Shen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yuhui Lu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Cheng Hu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhen Liang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Linyu Long
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ning Ning
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Jiali Chen
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China
| | - Yi Guo
- Rotex Co., Ltd., Chengdu, Sichuan 610043, China
| | - Zeyu Yang
- Rotex Co., Ltd., Chengdu, Sichuan 610043, China
| | - Xuefeng Hu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jieyu Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
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12
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Hozayen SM, Zychowski D, Benson S, Lutsey PL, Haslbauer J, Tzankov A, Kaltenborn Z, Usher M, Shah S, Tignanelli CJ, Demmer RT. Outpatient and inpatient anticoagulation therapy and the risk for hospital admission and death among COVID-19 patients. EClinicalMedicine 2021; 41:101139. [PMID: 34585129 PMCID: PMC8461367 DOI: 10.1016/j.eclinm.2021.101139] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 08/27/2021] [Accepted: 09/07/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is associated with a hypercoagulable state. Limited data exist informing the relationship between anticoagulation therapy and risk for COVID-19 related hospitalization and mortality. METHODS We evaluated all patients over the age of 18 diagnosed with COVID-19 in a prospective cohort study from March 4th to August 27th, 2020 among 12 hospitals and 60 clinics of M Health Fairview system (USA). We investigated the relationship between (1) 90-day anticoagulation therapy among outpatients before COVID-19 diagnosis and the risk for hospitalization and mortality and (2) Inpatient anticoagulation therapy and mortality risk. FINDINGS Of 6195 patients, 598 were immediately hospitalized and 5597 were treated as outpatients. The overall case-fatality rate was 2•8% (n = 175 deaths). Among the patients who were hospitalized, the inpatient mortality was 13%. Among the 5597 COVID-19 patients initially treated as outpatients, 160 (2.9%) were on anticoagulation and 331 were eventually hospitalized (5.9%). In a multivariable analysis, outpatient anticoagulation use was associated with a 43% reduction in risk for hospital admission, HR (95% CI = 0.57, 0.38-0.86), p = 0.007, but was not associated with mortality, HR (95% CI=0.88, 0.50 - 1.52), p = 0.64. Inpatients who were not on anticoagulation (before or after hospitalization) had an increased risk for mortality, HR (95% CI = 2.26, 1.17-4.37), p = 0.015. INTERPRETATION Outpatients with COVID-19 who were on outpatient anticoagulation at the time of diagnosis experienced a 43% reduced risk of hospitalization. Failure to initiate anticoagulation upon hospitalization or maintaining outpatient anticoagulation in hospitalized COVID-19 patients was associated with increased mortality risk. FUNDING No funding was obtained for this study.
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Key Words
- %, percentage
- (n), number
- ACEi, angiotensin-converting enzyme inhibitors
- ARBs, angiotensin receptor blockers
- Anticoagulation
- CI, confidence intervals
- CKD, chronic kidney disease
- CO2, carbon dioxide
- COPD, chronic obstructive pulmonary disease
- COVID-19
- COVID-19, coronavirus disease 2019
- D-dimer
- DIC, disseminated intravascular coagulation
- DOAC, direct oral anticoagulant
- EHR, electronic health records
- EMR, electronic medical records
- HCT, hematocrit
- HIT, heparin-induced thrombocytopenia
- HR, hazard ratio
- Hospitalization
- IPAC, inpatient anticoagulation therapy
- IRB, institutional review board
- Inpatient
- MI, prior myocardial infarction
- Mortality
- OPAC, outpatient persistent anticoagulation therapy
- Outpatient
- RDW, red blood cell distribution width
- SARS-CoV-2, severe Acute Respiratory Syndrome Coronavirus-2
- SBP, systolic blood pressure
- SBP-min, minimum systolic blood pressure
- SD, standard deviations
- SE, standard errors
- SpO2-min, minimum oxygen saturation
- T1DM, type 1 diabetes mellitus
- T2DM, type 2 diabetes mellitus
- VTE, venous thromboembolism
- WBC, white blood cell
- mg/dl, milligram per deciliter
- rt-PCR, reverse transcriptase-polymerase chain reaction
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Affiliation(s)
- Sameh M. Hozayen
- Department of Medicine, Division of General Internal Medicine, Assistant Professor of Medicine, Hospitalist, University of Minnesota, Mayo Building, 420 Delaware Street, SE, 6 Floor, Room D694, Minneapolis, MN 55455, United States
- Corresponding author.
| | - Diana Zychowski
- Department of Medical Education, University of Minnesota, United States
| | - Sydney Benson
- Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, MN, United States
| | - Pamela L. Lutsey
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, United States
| | - Jasmin Haslbauer
- Pathology, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Switzerland
| | - Alexandar Tzankov
- Pathology, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Switzerland
| | - Zachary Kaltenborn
- Department of Medicine, Division of General Internal Medicine, Assistant Professor of Medicine, Hospitalist, University of Minnesota, Mayo Building, 420 Delaware Street, SE, 6 Floor, Room D694, Minneapolis, MN 55455, United States
| | - Michael Usher
- Department of Medicine, Division of General Internal Medicine, Assistant Professor of Medicine, Hospitalist, University of Minnesota, Mayo Building, 420 Delaware Street, SE, 6 Floor, Room D694, Minneapolis, MN 55455, United States
| | - Surbhi Shah
- Department of Hematology and oncology, Mayo Clinic, Arizona, United States
| | - Christopher J. Tignanelli
- Department of Surgery, University of Minnesota, Minneapolis, MN, United States
- Institute for Health Informatics, University of Minnesota, Minneapolis, MN, United States
- Department of Surgery, North Memorial Health Hospital, Robbinsdale, MN, United States
| | - Ryan T. Demmer
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, United States
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, United States
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13
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Ning X, Sun L. Identification and characterization of immune-related lncRNAs and lncRNA-miRNA-mRNA networks of Paralichthys olivaceus involved in Vibrio anguillarum infection. BMC Genomics 2021; 22:447. [PMID: 34130627 PMCID: PMC8204505 DOI: 10.1186/s12864-021-07780-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 06/07/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) structurally resemble mRNAs and exert crucial effects on host immune defense against pathogen infection. Japanese flounder (Paralichthys olivaceus) is an economically important marine fish susceptible to Vibrio anguillarum infection. To date, study on lncRNAs in flounder is scarce. RESULTS Here, we reported the first systematic identification and characterization of flounder lncRNAs induced by V. anguillarum infection at different time points. A total of 2,368 lncRNAs were identified, 414 of which were differentially expressed lncRNAs (DElncRNAs) that responded significantly to V. anguillarum infection. For these DElncRNAs, 3,990 target genes (named DETGs) and 42 target miRNAs (named DETmiRs) were identified based on integrated analyses of lncRNA-mRNA and lncRNA-miRNA expressions, respectively. The DETGs were enriched in a cohort of functional pathways associated with immunity. In addition to modulating mRNAs, 36 DElncRNAs were also found to act as competitive endogenous RNAs (ceRNAs) that regulate 37 DETGs through 16 DETmiRs. The DETmiRs, DElncRNAs, and DETGs formed ceRNA regulatory networks consisting of 114 interacting DElncRNAs-DETmiRs-DETGs trinities spanning 10 immune pathways. CONCLUSIONS This study provides a comprehensive picture of lncRNAs involved in V. anguillarum infection. The identified lncRNAs and ceRNA networks add new insights into the anti-bacterial immunity of flounder.
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Affiliation(s)
- Xianhui Ning
- CAS Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, 266071, Qingdao, China.,College of Marine Science and Engineering, Nanjing Normal University, 210023, Nanjing, Jiangsu, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, 222005, Lianyungang, Jiangsu, China
| | - Li Sun
- CAS Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, 266071, Qingdao, China. .,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
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14
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Khalirakhmanov AF, Idrisova KF, Gaifullina RF, Zinchenko SV, Litvinov RI, Sharafeev AZ, Kiyasov AP, Rizvanov AA. Pathogenesis, Diagnosis, and Treatment of Hemostatic Disorders in COVID-19 Patients. Acta Naturae 2021; 13:79-84. [PMID: 34377558 PMCID: PMC8327143 DOI: 10.32607/actanaturae.11182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/12/2020] [Indexed: 01/08/2023] Open
Abstract
The novel coronavirus infection named COVID-19 was first detected in Wuhan, China, in December 2019, and it has been responsible for significant morbidity and mortality in scores of countries. At the time this article was being written, the number of infected and deceased patients continued to grow worldwide. Most patients with severe forms of the disease suffer from pneumonia and pulmonary insufficiency; in many cases, the disease is generalized and causes multiple organ failures and a dysfunction of physiological systems. One of the most serious and prognostically ominous complications from COVID-19 is coagulopathy, in particular, decompensated hypercoagulability with the risk of developing disseminated intravascular coagulation. In most cases, local and diffuse macro- and microthromboses are present, a condition which causes multiple-organ failure and thromboembolic complications. The causes and pathogenic mechanisms of coagulopathy in COVID-19 remain largely unclear, but they are associated with systemic inflammation, including the so-called cytokine storm. Despite the relatively short period of the ongoing pandemic, laboratory signs of serious hemostatic disorders have been identified and measures for specific prevention and correction of thrombosis have been developed. This review discusses the causes of COVID-19 coagulopathies and the associated complications, as well as possible approaches to their early diagnosis, prevention, and treatment.
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Affiliation(s)
- A. F. Khalirakhmanov
- University Hospital “Kazan Federal University”, Kazan, 420043 Russia
- Kazan Federal University, Kazan, 420012 Russia
| | | | - R. F. Gaifullina
- University Hospital “Kazan Federal University”, Kazan, 420043 Russia
- Kazan Federal University, Kazan, 420012 Russia
| | | | - R. I. Litvinov
- Kazan Federal University, Kazan, 420012 Russia
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104-6058 USA
| | - A. Z. Sharafeev
- Republican Clinical Hospital named after Sh.Sh. Ependiev, Grozniy, 364030 Russia
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15
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Zhong K, Wang Y, Wang Z, Zhang Z, Zhao S, Li H, Huang J, Guo W, Zheng X, Guo G, Zhou L, Yang H, Tong A. AP-64, Encoded by C5orf46, Exhibits Antimicrobial Activity against Gram-Negative Bacteria. Biomolecules 2021; 11:biom11040485. [PMID: 33804835 PMCID: PMC8063792 DOI: 10.3390/biom11040485] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/16/2021] [Accepted: 03/20/2021] [Indexed: 02/05/2023] Open
Abstract
Antimicrobial peptides (AMPs), which are evolutionarily conserved components of the innate immune response, contribute to the first line of defense against microbes in the skin and at mucosal surfaces. Here, we report the identification of a human peptide, encoded by the chromosome 5 open reading frame 46 (C5orf46) gene, as a type of AMP, which we termed antimicrobial peptide with 64 amino acid residues (AP-64). AP-64 is an anionic amphiphilic peptide lacking cysteines (MW = 7.2, PI = 4.54). AP-64 exhibited significant antibacterial activity against Gram-negative bacteria, including Escherichia coli DH5α, Escherichia coli O157:H7, Vibrio cholerae, and Pseudomonas aeruginosa. Moreover, AP-64 was efficient in combating Escherichia coli O157:H7 infections in a mouse model and exhibited cytotoxic effects against human T-cell lymphoma Jurkat and B-cell lymphoma Raji cells. We also observed that Gm94, encoded by mouse C5orf46 homologous gene, closely resembles AP-64 in its antibacterial properties. Compared with other human AMPs, AP-64 has distinct characteristics, including a longer sequence length, absence of cysteine residues, a highly anionic character, and cell toxicity. Together, this study identified that AP-64 is an AMP worthy of further investigation.
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Affiliation(s)
- Kunhong Zhong
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China; (K.Z.); (Z.W.); (Z.Z.); (S.Z.); (H.L.); (W.G.); (G.G.)
| | - Yuelong Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China; (Y.W.); (J.H.); (L.Z.)
| | - Zeng Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China; (K.Z.); (Z.W.); (Z.Z.); (S.Z.); (H.L.); (W.G.); (G.G.)
| | - Zongliang Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China; (K.Z.); (Z.W.); (Z.Z.); (S.Z.); (H.L.); (W.G.); (G.G.)
| | - Shasha Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China; (K.Z.); (Z.W.); (Z.Z.); (S.Z.); (H.L.); (W.G.); (G.G.)
| | - Hexian Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China; (K.Z.); (Z.W.); (Z.Z.); (S.Z.); (H.L.); (W.G.); (G.G.)
| | - Jianhan Huang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China; (Y.W.); (J.H.); (L.Z.)
| | - Wenhao Guo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China; (K.Z.); (Z.W.); (Z.Z.); (S.Z.); (H.L.); (W.G.); (G.G.)
| | - Xi Zheng
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China;
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China; (K.Z.); (Z.W.); (Z.Z.); (S.Z.); (H.L.); (W.G.); (G.G.)
| | - Liangxue Zhou
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China; (Y.W.); (J.H.); (L.Z.)
| | - Hui Yang
- Department of Otolaryngology, Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
- Correspondence: (H.Y.); (A.T.); Tel.: +86-28-85502796 (H.Y. & A.T.)
| | - Aiping Tong
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China; (K.Z.); (Z.W.); (Z.Z.); (S.Z.); (H.L.); (W.G.); (G.G.)
- Correspondence: (H.Y.); (A.T.); Tel.: +86-28-85502796 (H.Y. & A.T.)
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Host genetics and infectious disease: new tools, insights and translational opportunities. Nat Rev Genet 2020; 22:137-153. [PMID: 33277640 PMCID: PMC7716795 DOI: 10.1038/s41576-020-00297-6] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2020] [Indexed: 12/22/2022]
Abstract
Understanding how human genetics influence infectious disease susceptibility offers the opportunity for new insights into pathogenesis, potential drug targets, risk stratification, response to therapy and vaccination. As new infectious diseases continue to emerge, together with growing levels of antimicrobial resistance and an increasing awareness of substantial differences between populations in genetic associations, the need for such work is expanding. In this Review, we illustrate how our understanding of the host–pathogen relationship is advancing through holistic approaches, describing current strategies to investigate the role of host genetic variation in established and emerging infections, including COVID-19, the need for wider application to diverse global populations mirroring the burden of disease, the impact of pathogen and vector genetic diversity and a broad array of immune and inflammation phenotypes that can be mapped as traits in health and disease. Insights from study of inborn errors of immunity and multi-omics profiling together with developments in analytical methods are further advancing our knowledge of this important area. Infectious diseases are an ever-present global threat. In this Review, Kwok, Mentzer and Knight discuss our latest understanding of how human genetics influence susceptibility to disease. Furthermore, they discuss emerging progress in the interplay between host and pathogen genetics, molecular responses to infection and vaccination, and opportunities to bring these aspects together for rapid responses to emerging diseases such as COVID-19.
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Хрыщанович В. Prevention and Management of COVID-19-Associated Venous Thromboembolism. КАРДИОЛОГИЯ В БЕЛАРУСИ 2020. [DOI: 10.34883/pi.2020.12.4.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Распространение новой коронавирусной инфекции SARS-CoV-2, классифицируемой сейчас как COVID-19, приобрело глобальный характер. Врачи, занимающиеся лечением пациентов с COVID-19, ежедневно сталкиваются с новыми и неожиданными проблемами. Коронавирусная болезнь может быть причиной системной коагулопатии и тромботических осложнений. Недавние исследования подтвердили крайне высокую частоту встречаемости тромбоэмболических событий, в особенности в группе пациентов с тяжелым течением коронавирусной пневмонии. Сепсис-индуцированная активация коагуляционного каскада в сочетании с широкой распространенностью в общей популяции известных факторов риска венозной тромбоэмболии (ВТЭ) способствуют развитию в организме протромботического статуса. Аномальные параметры коагуляции связаны с плохим прогнозом для пациентов с COVID-19-пневмонией. Определенные гематологические биомаркеры, включая D-димер, могут выступать в качестве предикторов тромботических событий и неблагоприятных исходов заболевания. Вероятность развития тромботических осложнений следует определять у всех пациентов с COVID-19, которые входят в группу высокого риска ВТЭ и имели несколько неблагоприятных факторов до начала коронавирусной инфекции (более 8 баллов по шкале Caprini). В случаях развития сепсис-индуцированной коагулопатии антикоагулянтная терапия, по-видимому, связана с лучшим прогнозом в отношении смертности. Уровень D-димера может служить показателем эффективности антикоагулянтной терапии, однако такой подход не является общепринятым. В настоящем обзоре литературы обобщены накопленные на сегодняшний день эпидемиологические данные и текущие рекомендации по профилактике и лечению COVID-19-ассоциированной ВТЭ. Дальнейшие исследования должны быть сосредоточены на разработке оптимальных стратегий диагностики и профилактики COVID-19-ассоциированной ВТЭ и связанной с ней летальности
The disease caused by coronavirus SARS-CoV-2, named CoViD-19, has become a global emergency. Physicians that treat patients with COVID-19 face new and unexpected challenges every day. COVID-19 can lead to systemic coagulation activation and thrombotic complications. Recent studies confirmed very high cumulative incidence of thromboembolic events, particularly in critically illpatients with COVID-19 pneumonia. The sepsis-related activation of the coagulation combined with high prevalence of common thrombotic risk factors can contribute to this prothrombotic state. Abnormal coagulation parameters are associated with poor prognosis in patients with novel coronavirus pneumonia. Coagulation biomarkers, including D-dimer, can help in the identification of patients with the risk of complications and mortality. D-dimers may be used to monitor the effectiveness of anticoagulants, although this practice is not universally accepted. Risk assessment in admission is important to identify high-risk patients with multiple risk factors before the onset of the viral infection (Caprini score >8). In case of sepsis-induced coagulopathy, anticoagulant therapy appears to be associated with better prognosis in relation to mortality. In this review, we summarize available epidemiological data on venous thromboembolism and recommendations on thromboprophylaxis in COVID-19. Future research should focus on optimal diagnostic and prophylactic strategies to prevent VTE and potentially improve survival.
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Marietta M, Coluccio V, Luppi M. COVID-19, coagulopathy and venous thromboembolism: more questions than answers. Intern Emerg Med 2020; 15:1375-1387. [PMID: 32653981 PMCID: PMC7352087 DOI: 10.1007/s11739-020-02432-x] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 07/02/2020] [Indexed: 02/06/2023]
Abstract
The acute respiratory illnesses caused by severe acquired respiratory syndrome corona Virus-2 (SARS-CoV-2) is a global health emergency, involving more than 8.6 million people worldwide with more than 450,000 deaths. Among the clinical manifestations of COVID-19, the disease that results from SARS-CoV-2 infection in humans, a prominent feature is a pro-thrombotic derangement of the hemostatic system, possibly representing a peculiar clinicopathologic manifestation of viral sepsis. The severity of the derangement of coagulation parameters in COVID-19 patients has been associated with a poor prognosis, and the use of low molecular weight heparin (LMWH) at doses registered for prevention of venous thromboembolism (VTE) has been endorsed by the World Health Organization and by Several Scientific societies. However, some relevant issues on the relationships between COVID-19, coagulopathy and VTE have yet to be fully elucidated. This review is particularly focused on four clinical questions: What is the incidence of VTE in COVID-19 patients? How do we frame the COVID-19 associated coagulopathy? Which role, if any, do antiphospolipid antibodies have? How do we tackle COVID-19 coagulopathy? In the complex scenario of an overwhelming pandemic, most everyday clinical decisions have to be taken without delay, although not yet supported by a sound scientific evidence. This review discusses the most recent findings of basic and clinical research about the COVID-associated coagulopathy, to foster a more thorough knowledge of the mechanisms underlying this compelling disease.
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Affiliation(s)
- Marco Marietta
- Hematology Unit, Azienda Ospepdaliero-Universitaria, Via del Pozzo 71, 41124, Modena, Italy.
| | - Valeria Coluccio
- Hematology Unit, Azienda Ospepdaliero-Universitaria, Via del Pozzo 71, 41124, Modena, Italy
| | - Mario Luppi
- Hematology Unit, Azienda Ospepdaliero-Universitaria, Via del Pozzo 71, 41124, Modena, Italy
- Department of Medical and Surgical Sciences, Section of Hematology, University of Modena and Reggio Emilia, Modena, Italy
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19
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Wu MY, Liu L, Zou Q, Leung JK, Wang JL, Chou TY, Feng S. Simple synthesis of multifunctional photosensitizers for mitochondrial and bacterial imaging and photodynamic anticancer and antibacterial therapy. J Mater Chem B 2020; 8:9035-9042. [PMID: 32959039 DOI: 10.1039/d0tb01669a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Photosensitizers (PSs), a critical drug administered for successful photodynamic therapy (PDT), have been well researched regarding their anticancer or bactericidal capability with high precision and low invasiveness. Although traditional PSs have been explored either in photodynamic anticancer or in antibiosis, they usually require synthesis with multiple steps, harsh synthetic conditions, and a complicated purification process for a single targeted product. Therefore, developing new multifunctional PSs with a simple synthesis and reactant flexibility which combine mitochondrial and bacterial imaging, efficient photodynamic anticancer and antibacterial effects is of the utmost urgency and of great importance for clinical applications. Herein, a large structural investigation of isoquinolinium-based PSs synthesized by a simple Rh-catalysed annulation reaction with high yields is presented. These lipophilic cationic PSs have a tunable photophysical property. LIQ-6 was found to perform not only as an ideal mitochondria targeting probe but also an effective cancer cell killing PS, and moreover, a tracker for bacterial imaging and ablation. LIQ-6 can be used to image a wide range of cancer cells and to monitor the photo-induced cell apoptosis, and simultaneously, it can also image and be a photodynamic germicide for both Gram-positive and Gram-negative bacteria. Furthermore, LIQ-6 shows great effectiveness in the wound healing process, showing its ability to be an ideal PS in vivo as well. This contribution is believed to offer a new platform for the construction of a theragnostic system for future practical applications in biology and biomedicine.
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Affiliation(s)
- Ming-Yu Wu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Li Liu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Qian Zou
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jong-Kai Leung
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong Kong, China
| | - Jia-Li Wang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Tsu Yu Chou
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Hong Kong, China
| | - Shun Feng
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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20
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Frattini S, Maccagni G, Italia L, Metra M, Danzi GB. Coronavirus disease 2019 and cardiovascular implications. J Cardiovasc Med (Hagerstown) 2020; 21:725-732. [PMID: 32858623 DOI: 10.2459/jcm.0000000000001068] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
: The coronavirus disease 2019 (COVID-19) has important implications for the cardiovascular care of patients. COVID-19 interacts with the cardiovascular system on multiple levels, increasing morbidity in patients with underlying cardiovascular conditions and favoring acute myocardial injury and dysfunction. COVID-19 infection may also have long-term implications for overall cardiovascular health. Many issues regarding the involvement of the cardiovascular system remain controversial. Despite angiotensin-converting enzyme 2 serving as the site of entry of the virus into the cells, the role of angiotensin-converting enzyme inhibitors or AT1 blockers requires further investigation. Therapies under investigation for COVID-19 may have cardiovascular side effects. Treatment of COVID-19, especially the use of antivirals, must be closely monitored. This article is a review of the most updated literature.
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Affiliation(s)
| | - Gloria Maccagni
- Cardiology, ASST Spedali Civili; Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Cardiothoracic Department, Civil Hospitals, Brescia, Italy
| | - Leonardo Italia
- Cardiology, ASST Spedali Civili; Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Cardiothoracic Department, Civil Hospitals, Brescia, Italy
| | - Marco Metra
- Cardiology, ASST Spedali Civili; Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Cardiothoracic Department, Civil Hospitals, Brescia, Italy
| | - Gian B Danzi
- Division of Cardiology, Ospedale di Cremona, Cremona
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21
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Valerio L, Riva N. Head, Neck, and Abdominopelvic Septic Thrombophlebitis: Current Evidence and Challenges in Diagnosis and Treatment. Hamostaseologie 2020; 40:301-310. [PMID: 32726825 DOI: 10.1055/a-1177-5127] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Septic thrombophlebitis (STP) is a complex, cross-disciplinary clinical condition that combines a localized infection with a neighboring venous thrombosis. STP can occur at several possible anatomic sites, such as dural sinuses, jugular vein (Lemierre syndrome), portal vein (pylephlebitis), and pelvic veins. Its high mortality in the preantibiotic era improved considerably with the introduction of modern antibiotics. However, little evidence exists to date to guide its clinical management. The incidence of STP or its risk factors may be increasing, and its mortality may still be considerable. These trends would have far-reaching implications, especially in the setting of increasing resistance to antimicrobial agents. No clinical assessment tools exist to support patient screening or guide treatment in STP. Few interventional studies exist on the efficacy and safety of anticoagulation. Recommendations on its indications, duration, and the agents of choice are mostly based on evidence derived from small observational studies. While all forms of STP pose similar challenges, future research may benefit from the distinction between bacteria-associated, virus-associated, and mycosis-associated thrombophlebitis. Addressing these gaps in evidence would enhance our ability to diagnose this condition and treat patients effectively.
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Affiliation(s)
- Luca Valerio
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, University of Mainz, Mainz, Germany
| | - Nicoletta Riva
- Department of Pathology and Anatomy, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
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COVID-19 and haemostasis: a position paper from Italian Society on Thrombosis and Haemostasis (SISET). BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2020; 18:167-169. [PMID: 32281926 DOI: 10.2450/2020.0083-20] [Citation(s) in RCA: 159] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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23
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Pouw J, Leijten E, Radstake T, Boes M. Emerging molecular biomarkers for predicting therapy response in psoriatic arthritis: A review of literature. Clin Immunol 2020; 211:108318. [DOI: 10.1016/j.clim.2019.108318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 02/07/2023]
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24
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Li C, You X. Coagulation factors: a novel class of endogenous host antimicrobial proteins against drug-resistant gram-negative bacteria. Signal Transduct Target Ther 2019; 4:46. [PMID: 31728211 PMCID: PMC6838306 DOI: 10.1038/s41392-019-0083-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/18/2019] [Accepted: 09/23/2019] [Indexed: 11/08/2022] Open
Affiliation(s)
- Congran Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, 100050 Beijing, China
| | - Xuefu You
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, 100050 Beijing, China
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