1
|
Kollerová S, Jouvet L, Smelková J, Zunk-Parras S, Rodríguez-Rojas A, Steiner UK. Phenotypic resistant single-cell characteristics under recurring ampicillin antibiotic exposure in Escherichia coli. mSystems 2024:e0025624. [PMID: 38920373 DOI: 10.1128/msystems.00256-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 05/20/2024] [Indexed: 06/27/2024] Open
Abstract
Non-heritable, phenotypic drug resistance toward antibiotics challenges antibiotic therapies. Characteristics of such phenotypic resistance have implications for the evolution of heritable resistance. Diverse forms of phenotypic resistance have been described, but phenotypic resistance characteristics remain less explored than genetic resistance. Here, we add novel combinations of single-cell characteristics of phenotypic resistant E. coli cells and compare those to characteristics of susceptible cells of the parental population by exposure to different levels of recurrent ampicillin antibiotic. Contrasting expectations, we did not find commonly described characteristics of phenotypic resistant cells that arrest growth or near growth. We find that under ampicillin exposure, phenotypic resistant cells reduced their growth rate by about 50% compared to growth rates prior to antibiotic exposure. The growth reduction is a delayed alteration to antibiotic exposure, suggesting an induced response and not a stochastic switch or caused by a predetermined state as frequently described. Phenotypic resistant cells exhibiting constant slowed growth survived best under ampicillin exposure and, contrary to expectations, not only fast-growing cells suffered high mortality triggered by ampicillin but also growth-arrested cells. Our findings support diverse modes of phenotypic resistance, and we revealed resistant cell characteristics that have been associated with enhanced genetically fixed resistance evolution, which supports claims of an underappreciated role of phenotypic resistant cells toward genetic resistance evolution. A better understanding of phenotypic resistance will benefit combatting genetic resistance by developing and engulfing effective anti-phenotypic resistance strategies. IMPORTANCE Antibiotic resistance is a major challenge for modern medicine. Aside from genetic resistance to antibiotics, phenotypic resistance that is not heritable might play a crucial role for the evolution of antibiotic resistance. Using a highly controlled microfluidic system, we characterize single cells under recurrent exposure to antibiotics. Fluctuating antibiotic exposure is likely experienced under common antibiotic therapies. These phenotypic resistant cell characteristics differ from previously described phenotypic resistance, highlighting the diversity of modes of resistance. The phenotypic characteristics of resistant cells we identify also imply that such cells might provide a stepping stone toward genetic resistance, thereby causing treatment failure.
Collapse
Affiliation(s)
- Silvia Kollerová
- Department of Biology, University of Southern Denmark, Odense, Denmark
| | - Lionel Jouvet
- Department of Biology, University of Southern Denmark, Odense, Denmark
| | - Julia Smelková
- Department of Biology, University of Southern Denmark, Odense, Denmark
| | | | | | - Ulrich K Steiner
- Department of Biology, University of Southern Denmark, Odense, Denmark
- Biological Institute, Freie Universität Berlin, Berlin, Germany
| |
Collapse
|
2
|
Amábile-Cuevas CF, Lund-Zaina S. Non-Canonical Aspects of Antibiotics and Antibiotic Resistance. Antibiotics (Basel) 2024; 13:565. [PMID: 38927231 PMCID: PMC11200725 DOI: 10.3390/antibiotics13060565] [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: 04/17/2024] [Revised: 05/09/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
The understanding of antibiotic resistance, one of the major health threats of our time, is mostly based on dated and incomplete notions, especially in clinical contexts. The "canonical" mechanisms of action and pharmacodynamics of antibiotics, as well as the methods used to assess their activity upon bacteria, have not changed in decades; the same applies to the definition, acquisition, selective pressures, and drivers of resistance. As a consequence, the strategies to improve antibiotic usage and overcome resistance have ultimately failed. This review gathers most of the "non-canonical" notions on antibiotics and resistance: from the alternative mechanisms of action of antibiotics and the limitations of susceptibility testing to the wide variety of selective pressures, lateral gene transfer mechanisms, ubiquity, and societal factors maintaining resistance. Only by having a "big picture" view of the problem can adequate strategies to harness resistance be devised. These strategies must be global, addressing the many aspects that drive the increasing prevalence of resistant bacteria aside from the clinical use of antibiotics.
Collapse
Affiliation(s)
| | - Sofia Lund-Zaina
- Department of Public Health, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark
| |
Collapse
|
3
|
Mukhopadhyay S, Bishayi R, Shaji A, Lee AH, Gupta R, Mohajeri M, Katiyar A, McKee B, Schmitz IR, Shin R, Lele TP, Lele PP. Dynamic Adaptation in Extant Porins Facilitates Antibiotic Tolerance in Energetic Escherichia coli. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.07.583920. [PMID: 38496420 PMCID: PMC10942424 DOI: 10.1101/2024.03.07.583920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Bacteria can tolerate antibiotics despite lacking the genetic components for resistance. The prevailing notion is that tolerance results from depleted cellular energy or cell dormancy. In contrast to this view, many cells in the tolerant population of Escherichia coli can exhibit motility - a phenomenon that requires cellular energy, specifically, the proton-motive force (PMF). As these motile-tolerant cells are challenging to isolate from the heterogeneous tolerant population, their survival mechanism is unknown. Here, we discovered that motile bacteria segregate themselves from the tolerant population under micro-confinement, owing to their unique ability to penetrate micron-sized channels. Single-cell measurements on the motile-tolerant population showed that the cells retained a high PMF, but they did not survive through active efflux alone. By utilizing growth assays, single-cell fluorescence studies, and chemotaxis assays, we showed that the cells survived by dynamically inhibiting the function of existing porins in the outer membrane. A drug transport model for porin-mediated intake and efflux pump-mediated expulsion suggested that energetic tolerant cells withstand antibiotics by constricting their porins. The novel porin adaptation we have uncovered is independent of gene expression changes and may involve electrostatic modifications within individual porins to prevent extracellular ligand entry.
Collapse
|
4
|
Sharifian Gh. M, Norouzi F, Sorci M, Zaid TS, Pier GB, Achimovich A, Ongwae GM, Liang B, Ryan M, Lemke M, Belfort G, Gadjeva M, Gahlmann A, Pires MM, Venter H, Harris TE, Laurie GW. Targeting Iron - Respiratory Reciprocity Promotes Bacterial Death. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.01.582947. [PMID: 38464199 PMCID: PMC10925246 DOI: 10.1101/2024.03.01.582947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Discovering new bacterial signaling pathways offers unique antibiotic strategies. Here, through an unbiased resistance screen of 3,884 gene knockout strains, we uncovered a previously unknown non-lytic bactericidal mechanism that sequentially couples three transporters and downstream transcription to lethally suppress respiration of the highly virulent P. aeruginosa strain PA14 - one of three species on the WHO's 'Priority 1: Critical' list. By targeting outer membrane YaiW, cationic lacritin peptide 'N-104' translocates into the periplasm where it ligates outer loops 4 and 2 of the inner membrane transporters FeoB and PotH, respectively, to suppress both ferrous iron and polyamine uptake. This broadly shuts down transcription of many biofilm-associated genes, including ferrous iron-dependent TauD and ExbB1. The mechanism is innate to the surface of the eye and is enhanced by synergistic coupling with thrombin peptide GKY20. This is the first example of an inhibitor of multiple bacterial transporters.
Collapse
Affiliation(s)
| | - Fatemeh Norouzi
- Department of Cell Biology, University of Virginia, Charlottesville VA, USA
| | - Mirco Sorci
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy NY, USA
| | - Tanweer S Zaid
- Division of Infectious Disease, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston MA
| | - Gerald B. Pier
- Division of Infectious Disease, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston MA
| | - Alecia Achimovich
- Department of Chemistry, University of Virginia, Charlottesville VA, USA
| | - George M. Ongwae
- Department of Chemistry, University of Virginia, Charlottesville VA, USA
| | - Binyong Liang
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville VA, USA
| | - Margaret Ryan
- Department of Cell Biology, University of Virginia, Charlottesville VA, USA
| | - Michael Lemke
- Department of Pharmacology, University of Virginia, Charlottesville VA, USA
| | - Georges Belfort
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy NY, USA
| | - Mihaela Gadjeva
- Division of Infectious Disease, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston MA
| | - Andreas Gahlmann
- Department of Chemistry, University of Virginia, Charlottesville VA, USA
| | - Marcos M. Pires
- Department of Chemistry, University of Virginia, Charlottesville VA, USA
| | - Henrietta Venter
- Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Thurl E. Harris
- Department of Pharmacology, University of Virginia, Charlottesville VA, USA
| | - Gordon W. Laurie
- Department of Cell Biology, University of Virginia, Charlottesville VA, USA
- Department of Ophthalmology, University of Virginia, Charlottesville VA, USA
- Department of Biomedical Engineering, University of Virginia, Charlottesville VA, USA
- Contact author: Gordon Laurie
| |
Collapse
|
5
|
Qiao Y, Zhang Q, He Y, Cheng T, Tu J. A simple joint detection platform for high-throughput single-cell heterogeneity screening. Talanta 2024; 269:125460. [PMID: 38039667 DOI: 10.1016/j.talanta.2023.125460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 10/13/2023] [Accepted: 11/20/2023] [Indexed: 12/03/2023]
Abstract
Single cell heterogeneity plays an important role in many biological phenomena and distinguishing cells that exhibit certain mutation in sample could benefit clinical diagnose and drug screening. Typical single cell detection methods such as flow cytometry, in-situ hybridization, real-time amplification or sequencing test either protein or nucleic acid as target and usually require specialized instruments. Joint measurement of the both types of targets could be done by combining the above strategies precisely but also unwieldly. Methods for rapidly and parallelly screening single cells with target genotype and antigen is needed. In this study, we describe a gel plate platform to distinguish cell types based on their phenotypes on target gene and antigen with low equipment requirement. Integrated cell lysis and immobilization were done in the gel solidification step, after which antibody hybridization and real-time amplification were sequentially carried out without losing the original loci information of individual single cells so the three types of information of individual single cells could be combined to distinguished cells with expected genotype and phenotype. The easy-to-use gel platform has potential in point-of-care circumstances and single-cell stimulation response that have high requirements on efficiency and simplicity.
Collapse
Affiliation(s)
- Yi Qiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Qiongdan Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yukun He
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Tianguang Cheng
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Jing Tu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| |
Collapse
|
6
|
Kamara IF, Kanu J, Maruta A, Fofanah BD, Kamara KN, Sheriff B, Katawera V, D'Almeida SA, Musoke R, Nuwagira I, Lakoh S, Kamara RZ, Tengbe SM, Mansaray AR, Koroma Z, Thomas F, Abiri OT, Koroma AT, Russell JBW, Squire J, Vandi MA. Antibiotic use among hospitalised patients in Sierra Leone: a national point prevalence survey using the WHO survey methodology. BMJ Open 2023; 13:e078367. [PMID: 38159961 PMCID: PMC10759135 DOI: 10.1136/bmjopen-2023-078367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024] Open
Abstract
OBJECTIVE Inappropriate use of antibiotics is a major driver of antibiotic resistance. A few studies conducted in Africa have documented that about half of hospitalised patients who receive antibiotics should not have received them. A few hospital-based studies that have been conducted in Sierra Leone have documented a high usage of antibiotics in hospitals. Therefore, we conducted a nationwide point prevalence survey on antibiotic use among hospitalised patients in Sierra Leone. DESIGN We conducted a hospital-based, cross-sectional survey on the use of antibiotics using the WHO point prevalence survey methodology. SETTING The study was conducted in 26 public and private hospitals that are providing inpatient healthcare services. PARTICIPANTS All patients admitted to paediatric and adult inpatient wards before or at 08:00 on the survey date were enrolled. OUTCOME MEASURES Prevalence of antibiotic use, antibiotics Access, Watch and Reserve (AWaRe) categorisation, indication for antibiotic use prevalence and proportion of bacteria culture done. RESULTS Of the 1198 patient records reviewed, 883 (73.7%, 95% CI 71.1% to 76.2%) were on antibiotics. Antibiotic use was highest in the paediatric wards (306, 85.7%), followed by medical wards (158, 71.2%), surgical wards (146, 69.5%), mixed wards (97, 68.8%) and lowest in the obstetrics and gynaecology wards (176, 65.7%). The most widely prescribed antibiotics were metronidazole (404, 22.2%), ceftriaxone (373, 20.5%), ampicillin (337, 18.5%), gentamicin (221, 12.1%) and amoxicillin (90, 5.0%). Blood culture was only done for one patient and antibiotic treatments were given empirically. The most common indication for antibiotic use was community-acquired infection (484, 51.9%) followed by surgical prophylaxis (222, 23.8%). CONCLUSION There was high usage of antibiotics in hospitals in Sierra Leone as the majority of patients admitted received an antibiotic. This has the potential to increase the burden of antibiotic resistance in the country. We, therefore, recommend the establishment of hospital antimicrobial stewardship programmes according to the WHO core components.
Collapse
Affiliation(s)
- Ibrahim Franklyn Kamara
- Reproductive Maternal Newborn Child and Adolescent Health Unit, Universal Health Coverage Life Course Cluster, World Health Organisation Country Office Sierra Leone, Freetown, Sierra Leone
| | - Joseph Kanu
- National Disease Surveillance Programme, Sierra Leone Ministry of Health and Sanitation, Freetown, Sierra Leone
- Community Health, University of Sierra Leone College of Medicine and Allied Health Sciences, Freetown, Sierra Leone
| | - Anna Maruta
- World Health Organisation Country Office Sierra Leone, Freetown, Sierra Leone
| | | | - Kadijatu Nabie Kamara
- National Surveillance Program, Directorate of Health Security and Emergencies, Ministry of Health, Freetown, Sierra Leone
| | - Bockarie Sheriff
- Universal health Coverage Life Course Cluster, World Health Organisation Country Office Sierra Leone, Freetown, Sierra Leone
| | - Victoria Katawera
- Universal health Coverage Life Course Cluster, World Health Organisation Country Office Sierra Leone, Freetown, Sierra Leone
| | - Selassi A D'Almeida
- Universal health Coverage Life Course Cluster, World Health Organisation Country Office Sierra Leone, Freetown, Sierra Leone
| | - Robert Musoke
- Emergency Preparedness and Response, World Health Organization Country Office, Sierra Leone, Freetown, Sierra Leone
| | - Innocent Nuwagira
- World Health Organisation Country Office Sierra Leone, Freetown, Sierra Leone
| | - Sulaiman Lakoh
- Sierra Leone Ministry of Health and Sanitation, Freetown, Sierra Leone
| | - Rugiatu Z Kamara
- US Center for Disease Control and Prevention Country Office, Sierra Leone, Freetown, Sierra Leone
| | | | - Abdul Razak Mansaray
- Laboratory, Diagnostic and Blood Services, Ministry of Health and Sanitation, Freetown, Sierra Leone
- Microbiology, University of Sierra Leone College of Medicine and Allied Health Sciences, Freetown, Sierra Leone
| | - Zikan Koroma
- Sierra Leone Ministry of Health and Sanitation, Freetown, Sierra Leone
| | - Fawzi Thomas
- Pharmacovigilance and Clinical Trials, Pharmacy Board of Sierra Leone, Freetown, Sierra Leone
| | - Onome T Abiri
- Pharmacovigilance and Clinical Trials Department, Pharmacy Board of Sierra Leone, Freetown, Sierra Leone
- Pharmacology, University of Sierra Leone College of Medicine and Allied Health Sciences, Freetown, Sierra Leone
| | - Aminata Tigiedankay Koroma
- National Surveillance Program, Directorate of Health Security and Emergency, Government of Sierra Leone Ministry of Health and Sanitation, Freetown, Sierra Leone
| | | | - James Squire
- Government of Sierra Leone Ministry of Health and Sanitation, Freetown, Sierra Leone
| | - Mohamed Alex Vandi
- Government of Sierra Leone Ministry of Health and Sanitation, Freetown, Sierra Leone
| |
Collapse
|
7
|
Zhang S, Wen J, Wang Y, Zhong Z, Wang M, Jia R, Chen S, Liu M, Zhu D, Zhao X, Wu Y, Yang Q, Huang J, Ou X, Mao S, Gao Q, Sun D, Tian B, Cheng A. Decoding the enigma: unveiling the molecular transmission of avian-associated tet(X4)-positive E. coli in Sichuan Province, China. Poult Sci 2023; 102:103142. [PMID: 37879166 PMCID: PMC10618799 DOI: 10.1016/j.psj.2023.103142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/18/2023] [Accepted: 09/18/2023] [Indexed: 10/27/2023] Open
Abstract
Tigecycline is considered one of the "last resort antibiotics" for treating complex infections caused by multidrug-resistant (MDR) bacteria, especially for combating clinical resistant strains that produce carbapenemases. However, the tet(X4) gene, which carried by different plasmids can mediate high levels of bacterial resistance to tigecycline, was first reported in 2019. Here, we report the emergence of the plasmid-mediated tet(X4) in avian environment of Sichuan Province. A total of 21 tet(X4)-positive Escherichia coli (E. coli) strains were isolated and identified from avian samples in selected regions, with an isolation rate of 1.6% (21/1,286), and all of them were MDR strains. Multilocus Sequence Typing (MLST) method was used to classify the 21 tet(X4)-positive E. coli into the ST206, ST761, ST155, ST1638, ST542, and ST767 types, which also belong to the 3 phylogenetic subgroups A, B1, and C. Tet(X4) is located on mobile plasmids that can be efficiently and stably propagated. The results of fitness cost experiments showed that tet(X4)-positive plasmids may incur some fitness cost to host bacteria, but different tet(X4)-positive plasmids bring about differential fitness costs. Whole-genome sequencing further confirmed the tet(X4) gene can be located on IncX1-type plasmids and the core genetic structures are ISVsa3-rdmc-tet(X4) or rdmc-tet(X4)-ISVsa3, the former is a 7 copies tandem repeat structure. In this study, we isolated and identified tet(X4)-positive E. coli from the avian origin in Sichuan, analyzed the mobility of the tet(X4) by conjugational transfer and S1-PFGE, and evaluated the biological characteristics of the tet(X4)-positive plasmid using the results of conjugational frequency, plasmid stability, and fitness costs. Finally, combined with the third-generation whole-genome sequencing analysis, the molecular transmission characteristics of the tet(X4) were preliminarily clarified, providing a scientific basis for guiding veterinary clinical use in this area, as well as risk assessment and prevention of the transfer and spread of tigecycline resistant strains or genes.
Collapse
Affiliation(s)
- Shaqiu Zhang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Jinfeng Wen
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Yuwei Wang
- Mianyang Academy of Agricultural Sciences, Mianyang 621023, PR China
| | - Zhijun Zhong
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Mingshu Wang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Renyong Jia
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Shun Chen
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Mafeng Liu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Dekang Zhu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Xinxin Zhao
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Ying Wu
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Qiao Yang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Juan Huang
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Xumin Ou
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Sai Mao
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Qun Gao
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Di Sun
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Bin Tian
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China
| | - Anchun Cheng
- Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, PR China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education of the PR China, Chengdu 611130, PR China.
| |
Collapse
|
8
|
Liu X, Xiao H, Chao J, Jian S, Wu X, Lu J, Wang J, Chen C, Liu Y. Polyvalent passive vaccine candidates from egg yolk antibodies (IgY) of important outer membrane proteins (PF1380 and ExbB) of Pseudomonas fluorescens in fish. FISH & SHELLFISH IMMUNOLOGY 2023; 143:109211. [PMID: 37944683 DOI: 10.1016/j.fsi.2023.109211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 10/22/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023]
Abstract
Polyvalent antibodies can resist multiple bacterial species, and immunoglobulin Y (IgY) antibody can be economically prepared in large quantities from egg yolk; further, IgY polyvalent antibodies have application value in aquaculture. The outer membrane proteins (OMPs) PF1380 and ExbB of Pseudomonas fluorescens were expressed and purified, and the corresponding IgY antibodies were prepared. PF1380, ExbB, and the corresponding IgY antibodies could activate the innate immune responses of chicken and Carassius auratus. The passive immunization to C. auratus showed that the IgY antibodies of PF1380 and ExbB had an immune protection rate, down-regulated the expression of antioxidant-related factors (MDA, SOD, GSH-Px, and CAT) to reduce the antioxidant reaction, down-regulated the expression of inflammation-related genes (IL-6, IL-8, TNF-α, and IL-1β) to reduce the inflammatory reaction, maintained the integrity of visceral tissue structure, and reduced apoptosis and damage of tissue cells in relation to P. fluorescens and Aeromonas hydrophila infections. Thus, the IgY antibodies of PF1380 and ExbB could be considered as passive polyvalent vaccine candidates in aquaculture.
Collapse
Affiliation(s)
- Xiang Liu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, 236041, China; Chinese-German Joint Institute for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, 723000, China; Fuyang Normal University--Funan Rural Revitalization Collaborative Technology Service Center, Fuyang Normal University, Fuyang, 236041, China.
| | - Huihui Xiao
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, 236041, China; Fuyang Normal University--Funan Rural Revitalization Collaborative Technology Service Center, Fuyang Normal University, Fuyang, 236041, China
| | - Jia Chao
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, 236041, China; Chinese-German Joint Institute for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, 723000, China
| | - Sijie Jian
- Chinese-German Joint Institute for Natural Product Research, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, 723000, China
| | - Xiaoqing Wu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, 236041, China
| | - Juan Lu
- Fuyang Normal University--Funan Rural Revitalization Collaborative Technology Service Center, Fuyang Normal University, Fuyang, 236041, China
| | - Juan Wang
- Fuyang Normal University--Funan Rural Revitalization Collaborative Technology Service Center, Fuyang Normal University, Fuyang, 236041, China
| | - Chunlin Chen
- Fuyang Normal University--Funan Rural Revitalization Collaborative Technology Service Center, Fuyang Normal University, Fuyang, 236041, China
| | - Yong Liu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, 236041, China; Fuyang Normal University--Funan Rural Revitalization Collaborative Technology Service Center, Fuyang Normal University, Fuyang, 236041, China.
| |
Collapse
|
9
|
Zhang C, Kong Y, Xiang Q, Ma Y, Guo Q. Bacterial memory in antibiotic resistance evolution and nanotechnology in evolutionary biology. iScience 2023; 26:107433. [PMID: 37575196 PMCID: PMC10415926 DOI: 10.1016/j.isci.2023.107433] [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] [Indexed: 08/15/2023] Open
Abstract
Bacterial memory refers to the phenomenon in which past experiences influence current behaviors in response to changing environments. It serves as a crucial process that enables adaptation and evolution. We first summarize the state-of-art approaches regarding history-dependent behaviors that impact growth dynamics and underlying mechanisms. Then, the phenotypic and genotypic origins of memory and how encoded memory modulates drug tolerance/resistance are reviewed. We also provide a summary of possible memory effects induced by antimicrobial nanoparticles. The regulatory networks and genetic underpinnings responsible for memory building partially overlap with nanoparticle and drug exposures, which may raise concerns about the impact of nanotechnology on adaptation. Finally, we provide a perspective on the use of nanotechnology to harness bacterial memory based on its unique mode of actions on information processing and transmission in bacteria. Exploring bacterial memory mechanisms provides valuable insights into acclimation, evolution, and the potential applications of nanotechnology in harnessing memory.
Collapse
Affiliation(s)
- Chengdong Zhang
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yan Kong
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Qingxin Xiang
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yayun Ma
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Quanyi Guo
- School of Environment, Beijing Normal University, Beijing 100875, China
| |
Collapse
|
10
|
Dwiyanto J, Huët MAL, Hussain MH, Su TT, Tan JBL, Toh KY, Lee JWJ, Rahman S, Chong CW. Social demographics determinants for resistome and microbiome variation of a multiethnic community in Southern Malaysia. NPJ Biofilms Microbiomes 2023; 9:55. [PMID: 37573460 PMCID: PMC10423249 DOI: 10.1038/s41522-023-00425-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 08/03/2023] [Indexed: 08/14/2023] Open
Abstract
The prevalence of antibiotic-resistant bacteria in Southeast Asia is a significant concern, yet there is limited research on the gut resistome and its correlation with lifestyle and environmental factors in the region. This study aimed to profile the gut resistome of 200 individuals in Malaysia using shotgun metagenomic sequencing and investigate its association with questionnaire data comprising demographic and lifestyle variables. A total of 1038 antibiotic resistance genes from 26 classes were detected with a mean carriage rate of 1.74 ± 1.18 gene copies per cell per person. Correlation analysis identified 14 environmental factors, including hygiene habits, health parameters, and intestinal colonization, that were significantly associated with the resistome (adjusted multivariate PERMANOVA, p < 0.05). Notably, individuals with positive yeast cultures exhibited a reduced copy number of 15 antibiotic resistance genes. Network analysis highlighted Escherichia coli as a major resistome network hub, with a positive correlation to 36 antibiotic-resistance genes. Our findings suggest that E. coli may play a pivotal role in shaping the resistome dynamics in Segamat, Malaysia, and its abundance is strongly associated with the community's health and lifestyle habits. Furthermore, the presence of yeast appears to be associated with the suppression of antibiotic-resistance genes.
Collapse
Affiliation(s)
- J Dwiyanto
- AMILI, Singapore, 118261, Singapore.
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia.
| | - M A L Huët
- Faculty of Science, University of Mauritius, Reduit, 80837, Mauritius
| | - M H Hussain
- School of Science, Monash University Malaysia, Bandar Sunway, 47500, Malaysia
| | - T T Su
- South East Asia Community Observatory, Segamat, 85000, Malaysia
| | - J B L Tan
- School of Science, Monash University Malaysia, Bandar Sunway, 47500, Malaysia
| | - K Y Toh
- AMILI, Singapore, 118261, Singapore
| | - J W J Lee
- AMILI, Singapore, 118261, Singapore
- Department of Medicine, National University Hospital, Singapore, 119228, Singapore
| | - S Rahman
- School of Science, Monash University Malaysia, Bandar Sunway, 47500, Malaysia
- Tropical Medicine and Biology Platform, Monash University Malaysia, Bandar Sunway, 47500, Malaysia
| | - C W Chong
- AMILI, Singapore, 118261, Singapore.
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, 47500, Malaysia.
| |
Collapse
|
11
|
Pierlé SA, Lang M, López-Igual R, Krin E, Fourmy D, Kennedy SP, Val ME, Baharoglu Z, Mazel D. Identification of the active mechanism of aminoglycoside entry in V. cholerae through characterization of sRNA ctrR, regulating carbohydrate utilization and transport. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.19.549712. [PMID: 37502966 PMCID: PMC10370196 DOI: 10.1101/2023.07.19.549712] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
The possible active entry of aminoglycosides in bacterial cells has been debated since the development of this antibiotic family. Here we report the identification of their active transport mechanism in Vibrio species. We combined genome-wide transcriptional analysis and fitness screens to identify alterations driven by treatment of V. cholerae with sub-minimum inhibitory concentrations (sub-MIC) of the aminoglycoside tobramycin. RNA-seq data showed downregulation of the small non-coding RNA ncRNA586 during such treatment, while Tn-seq revealed that inactivation of this sRNA was associated with improved fitness in the presence of tobramycin. This sRNA is located near sugar transport genes and previous work on a homologous region in Vibrio tasmaniensis suggested that this sRNA stabilizes gene transcripts for carbohydrate transport and utilization, as well as phage receptors. The role for ncRNA586, hereafter named ctrR, in the transport of both carbohydrates and aminoglycosides, was further investigated. Flow cytometry on cells treated with a fluorescent aminoglycoside confirmed the role of ctrR and of carbohydrate transporters in differential aminoglycoside entry. Despite sequence diversity, ctrR showed functional conservation across the Vibrionales. This system in directly modulated by carbon sources, suggesting regulation by carbon catabolite repression, a widely conserved mechanism in Gram-negative bacteria, priming future research on aminoglycoside uptake by sugar transporters in other bacterial species.
Collapse
Affiliation(s)
- Sebastian A. Pierlé
- Institut Pasteur, Université Paris Cité, CNRS UMR3525, Unité Plasticité du Génome Bactérien, F-75015 Paris, France
| | - Manon Lang
- Institut Pasteur, Université Paris Cité, CNRS UMR3525, Unité Plasticité du Génome Bactérien, F-75015 Paris, France
| | - Rocío López-Igual
- Institut Pasteur, Université Paris Cité, CNRS UMR3525, Unité Plasticité du Génome Bactérien, F-75015 Paris, France
| | - Evelyne Krin
- Institut Pasteur, Université Paris Cité, CNRS UMR3525, Unité Plasticité du Génome Bactérien, F-75015 Paris, France
| | - Dominique Fourmy
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Sean P. Kennedy
- Institut Pasteur, Université Paris Cité, USR 3756 CNRS, Department of Computational Biology, 75015 Paris, France
| | - Marie-Eve Val
- Institut Pasteur, Université Paris Cité, CNRS UMR3525, Unité Plasticité du Génome Bactérien, F-75015 Paris, France
| | - Zeynep Baharoglu
- Institut Pasteur, Université Paris Cité, CNRS UMR3525, Unité Plasticité du Génome Bactérien, F-75015 Paris, France
| | - Didier Mazel
- Institut Pasteur, Université Paris Cité, CNRS UMR3525, Unité Plasticité du Génome Bactérien, F-75015 Paris, France
| |
Collapse
|
12
|
Single-cell recordings reveal subpopulations that grow and generate resistance at bactericidal concentrations of antibiotics. Proc Natl Acad Sci U S A 2023; 120:e2221546120. [PMID: 36745803 PMCID: PMC9963259 DOI: 10.1073/pnas.2221546120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
|