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Anandhan Sujatha V, Gopalakrishnan C, Anbarasu A, Ponnusamy CS, Choudhary R, Saravanan Geetha SA, Ramalingam R. Beyond the venom: Exploring the antimicrobial peptides from Androctonus species of scorpion. J Pept Sci 2024; 30:e3613. [PMID: 38749486 DOI: 10.1002/psc.3613] [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: 01/04/2024] [Revised: 04/12/2024] [Accepted: 05/01/2024] [Indexed: 10/08/2024]
Abstract
Prevalent worldwide, the Androctonus scorpion genus contributes a vital role in scorpion envenoming. While diverse scorpionisms are observed because of several different species, their secretions to protect themselves have been identified as a potent source of antimicrobial peptide (AMP)-like compounds. Distinctly, the venom of these species contains around 24 different AMPs, with definite molecules studied for their therapeutic potential as antimicrobial, antifungal, antiproliferative and antiangiogenic agents. Our review focuses on the therapeutic potential of native and synthetic AMPs identified so far in the Androctonus scorpion genus, identifying research gaps in peptide therapeutics and guiding further investigations. Certain AMPs have demonstrated remarkable compatibility to be prescribed as anticancer drug to reduce cancer cell proliferation and serve as a potent antibiotic alternative. Besides, analyses were performed to explore the characteristics and affinities of peptides for membranes. Overall, the study of AMPs derived from the Androctonus scorpion genus provides valuable insights into their potential applications in medicine and drug development.
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Affiliation(s)
- Vinutha Anandhan Sujatha
- Quantitative Biology Lab, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT, Deemed to be University), Vellore, Tamil Nadu, India
| | - Chandrasekhar Gopalakrishnan
- Quantitative Biology Lab, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT, Deemed to be University), Vellore, Tamil Nadu, India
| | - Amarnath Anbarasu
- Quantitative Biology Lab, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT, Deemed to be University), Vellore, Tamil Nadu, India
| | - Chandra Sekar Ponnusamy
- Quantitative Biology Lab, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT, Deemed to be University), Vellore, Tamil Nadu, India
| | - Rajkumar Choudhary
- Quantitative Biology Lab, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT, Deemed to be University), Vellore, Tamil Nadu, India
| | - Sree Agash Saravanan Geetha
- Quantitative Biology Lab, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT, Deemed to be University), Vellore, Tamil Nadu, India
| | - Rajasekaran Ramalingam
- Quantitative Biology Lab, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT, Deemed to be University), Vellore, Tamil Nadu, India
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Alshubaily AM, Alosaimi AS, Alhothli BI, Althawadi SI, Alghamdi SM. Risk of invasive MDRO infection in MDRO-colonized patients. Infect Control Hosp Epidemiol 2024:1-5. [PMID: 39400028 DOI: 10.1017/ice.2024.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2024]
Abstract
OBJECTIVE In this study, we aim to estimate the risk of developing clinical multidrug-resistant organism (MDRO) infection with carbapenem-resistant Enterobacterales (CRE), methicillin-resistant Staphylococcus aureus (MRSA), or vancomycin-resistant enterococci (VRE) in colonized patients compared with non-colonized admitted to high-risk areas with a main focus on CRE colonization/infection. DESIGN AND SETTING Retrospective cohort study conducted at a tertiary care facility. METHODS This study included patients enrolled in active surveillance testing (AST) for CRE, MRSA, or VRE during the year 2021. Development of relevant invasive infection within 365 days of the AST result was collected as the primary outcome. The association between MDRO colonization and infection was calculated using the risk ratio. The prevalence of CRE organisms and carbapenemase genes is presented. RESULTS A total of 19,134 ASTs were included in the analysis (4,919 CRE AST, 8,303 MRSA AST, and 5,912 VRE AST). Patient demographics were similar between colonized and non-colonized groups. Colonization was associated with an increased risk of infection in the 3 cohorts (CRE, MRSA, and VRE), with risk ratios reported as 4.6, 8.2, and 22, respectively. Most patients (88%) develop CRE infection with the same colonizing carbapenemase gene. Oxa-48/NDM Klebsiella pneumoniae was the most common organism detected in CRE infection. CONCLUSIONS The study demonstrated that colonization with CRE, MRSA, or VRE is a risk factor for developing infections caused by the respective bacteria. The high percentage of match between carbapenemase genes detected in colonization and infection indicates that screening results might be used to inform infection management and treatment.
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Affiliation(s)
- Ali M Alshubaily
- Pediatric Infectious Diseases Section, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Aeshah S Alosaimi
- Infection Control and Hospital Epidemiology, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Bushra I Alhothli
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Sahar I Althawadi
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - Salem M Alghamdi
- Pediatric Infectious Diseases Section, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
- Infection Control and Hospital Epidemiology, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
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Sturaro MC, Damaceno NDS, Faccin ID, Silva ON, de Aquino TM, Freire NML, Alcântara MGDS, Monteiro KLC, Rossato L, de Souza GHDA, Simionatto S. Synergistic antimicrobial combination of third-generation cephalosporins and polymyxin B against carbapenem-polymyxin-resistant Klebsiella pneumoniae: an in vitro and in vivo analysis. Antimicrob Agents Chemother 2024; 68:e0093024. [PMID: 39254296 PMCID: PMC11459926 DOI: 10.1128/aac.00930-24] [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: 06/21/2024] [Accepted: 08/19/2024] [Indexed: 09/11/2024] Open
Abstract
Antibiotic combination therapy is a promising approach to address the urgent need for novel treatment options for infections caused by carbapenem-polymyxin-resistant Klebsiella pneumoniae (CPR-Kp). The present study aimed to investigate the synergistic potential of four cephalosporins in combination with polymyxin B (PMB). A checkerboard assay was performed to evaluate the synergistic effects of cephalexin (CLX), cefixime, cefotaxime (CTX), and cefmenoxime (CMX) in combination with PMB. Subsequently, experiments evaluating the use of CTX or CMX in combination with PMB (CTX-PMB or CMX-PMB, respectively), including growth curve and SynergyFinder analysis, antibiofilm activity assays, cell membrane integrity assays, and scanning electron microscopy, were performed. Safety assessments were also conducted, including hemolysis and toxicity evaluations, using Caenorhabditis elegans. Furthermore, an in vivo model in C. elegans was adopted to assess the treatment efficacy against CPR-Kp infections. CTX-PMB and CMX-PMB exhibited low fractional inhibitory concentration indexes ranging from 0.19 to 0.50 and from 0.25 to 1.5, respectively, and zero interaction potency scores of 37.484 and 15.076, respectively. The two combinations significantly reduced growth and biofilm formation in CPR-Kp. Neither CTX-PMB nor CMX-PMB compromised bacterial cell integrity. Safety assessments revealed a low hemolysis percentage and high survival rates in the C. elegans toxicity evaluations. The in vivo model revealed that the CTX-PMB and CMX-PMB treatments improved the survival rates of C. elegans. The synergistic effects of the CTX-PMB and CMX-PMB combinations, both in vitro and in vivo, indicate that these antibiotic pairings could represent effective therapeutic options for infections caused by CPR-Kp.
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Affiliation(s)
- Mariana Carvalho Sturaro
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, Brazil
| | | | - Izadora Dillis Faccin
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, Brazil
| | | | - Thiago Mendonça de Aquino
- Laboratório de Síntese e Pesquisa em Química Medicinal, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, Brazil
| | - Nathalia Monteiro Lins Freire
- Laboratório de Síntese e Pesquisa em Química Medicinal, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, Brazil
| | - Marcone Gomes dos Santos Alcântara
- Laboratório de Síntese e Pesquisa em Química Medicinal, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, Brazil
| | - Kadja Luana Chagas Monteiro
- Laboratório de Síntese e Pesquisa em Química Medicinal, Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, Brazil
| | - Luana Rossato
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, Brazil
| | | | - Simone Simionatto
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, Brazil
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Gelalcha BD, Gelgie AE, Kerro Dego O. Antimicrobial resistance and prevalence of extended-spectrum beta-lactamase-producing Klebsiella species in East Tennessee dairy farms. Microbiol Spectr 2024; 12:e0353723. [PMID: 39240080 PMCID: PMC11448431 DOI: 10.1128/spectrum.03537-23] [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: 10/02/2023] [Accepted: 07/15/2024] [Indexed: 09/07/2024] Open
Abstract
Klebsiella species commonly reside in dairy cattle guts and are consistently exposed to beta-lactam antibiotics, including ceftiofur, which are frequently used on the U.S. dairy farms. This may impose selection pressure and result in the emergence of extended-spectrum beta-lactamase (ESBL)-producing strains. However, information on the status and antimicrobial resistance (AMR) profile of ESBL-Klebsiella spp. in the U.S. dairy farms is largely unknown. This study aimed to determine the prevalence and AMR profile of ESBL-Klebsiella spp. and the factors affecting their occurrence in dairy cattle farms. Rectal fecal samples (n = 508) and manure, feed, and water samples (n = 64) were collected from 14 dairy farms in Tennessee. Samples were directly plated on CHROMagar ESBL, and presumptive Klebsiella spp. were confirmed using matrix-assisted laser desorption/ionization-time of flight mass spectrometry. Antimicrobial susceptibility testing was performed on the isolates against panels of 14 antimicrobial agents from 10 classes using minimum inhibitory concentration. Of 572 samples, 57 (10%) were positive for ESBL-Klebsiella spp. The fecal prevalence of ESBL-Klebsiella spp. was 7.2% (95% CI: 6.5-8.0). The herd-level fecal prevalence of ESBL-Klebsiella spp. was 35.7% (95% CI: 12.7-64.8). The fecal prevalence of ESBL-Klebsiella spp. was significantly higher in calves than in cows and higher in cows with higher parity (≥3) as compared to cows with low parity (P < 0.001). Most (96.5%, n = 57) ESBL-Klebsiella spp. were resistant to ceftriaxone. The highest level of acquired co-resistance to ceftriaxone in ESBL-Klebsiella spp. was to sulfisoxazole (66.7%; 38/57). About 19% of ESBL-Klebsiella spp. were multidrug resistant. The presence of ESBL-producing Klebsiella spp. in dairy cattle, feed, and water obtained from troughs could play a crucial epidemiological role in maintaining and spreading the bacteria on farms and serving as a point source of transmission. IMPORTANCE We collected 572 samples from dairy farms, including rectal feces, manure, feed, and water. We isolated and identified extended-spectrum beta-lactamase (ESBL)-Klebsiella spp. and conducted an antimicrobial susceptibility test and analyzed different variables that may be associated with ESBL-Klebsiella spp. in dairy farms. The results of our study shed light on how ESBL-Klebsiella spp. are maintained through fecal-oral routes in dairy farms and possibly exit from the farm into the environment. We determine the prevalence of ESBL-Klebsiella spp. and their antimicrobial susceptibility profiles, underscoring their potential as a vehicle for multiple resistance gene dissemination within dairy farm settings. We also collected data on variables affecting their occurrence and spread in dairy farms. These findings have significant implications in determining sources of community-acquired ESBL-Enterobacteriaceae infections and designing appropriate control measures to prevent their spread from food animal production systems to humans, animals, and environments.
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Affiliation(s)
- Benti Deresa Gelalcha
- Department of Animal Science, The University of Tennessee, Knoxville, Tennessee, USA
| | - Aga E Gelgie
- Department of Animal Science, The University of Tennessee, Knoxville, Tennessee, USA
| | - Oudessa Kerro Dego
- Department of Animal Science, The University of Tennessee, Knoxville, Tennessee, USA
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Naik GARR, Roy AA, Mutalik S, Dhas N. Unleashing the power of polymeric nanoparticles - Creative triumph against antibiotic resistance: A review. Int J Biol Macromol 2024; 278:134977. [PMID: 39187099 DOI: 10.1016/j.ijbiomac.2024.134977] [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: 02/23/2024] [Revised: 08/08/2024] [Accepted: 08/21/2024] [Indexed: 08/28/2024]
Abstract
Antibiotic resistance (ABR) poses a universal concern owing to the widespread use of antibiotics in various sectors. Nanotechnology emerges as a promising solution to combat ABR, offering targeted drug delivery, enhanced bioavailability, reduced toxicity, and stability. This comprehensive review explores concepts of antibiotic resistance, its mechanisms, and multifaceted approaches to combat ABR. The review provides an in-depth exploration of polymeric nanoparticles as advanced drug delivery systems, focusing on strategies for targeting microbial infections and contributing to the fight against ABR. Nanoparticles revolutionize antimicrobial approaches, emphasizing passive and active targeting. The role of various molecules, including small molecules, antimicrobial peptides, proteins, carbohydrates, and stimuli-responsive systems, is being explored in recent research works. The complex comprehension mechanisms of ABR and strategic use of nanotechnology present a promising avenue for advancing antimicrobial tactics, ensuring treatment efficacy, minimizing toxic effects, and mitigating development of ABR. Polymeric nanoparticles, derived from natural or synthetic polymers, are crucial in overcoming ABR. Natural polymers like chitosan and alginate exhibit inherent antibacterial properties, while synthetic polymers such as polylactic acid (PLA), polyethylene glycol (PEG), and polycaprolactone (PCL) can be engineered for specific antibacterial effects. This comprehensive study provides a valuable source of information for researchers, healthcare professionals, and policymakers engaged in the urgent quest to overcome ABR.
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Affiliation(s)
- Gaurisha Alias Resha Ramnath Naik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, Karnataka State 576104, India
| | - Amrita Arup Roy
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, Karnataka State 576104, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, Karnataka State 576104, India
| | - Namdev Dhas
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Udupi, Karnataka State 576104, India.
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Vercauteren S, Fiesack S, Maroc L, Verstraeten N, Dewachter L, Michiels J, Vonesch SC. The rise and future of CRISPR-based approaches for high-throughput genomics. FEMS Microbiol Rev 2024; 48:fuae020. [PMID: 39085047 PMCID: PMC11409895 DOI: 10.1093/femsre/fuae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/19/2024] [Accepted: 07/30/2024] [Indexed: 08/02/2024] Open
Abstract
Clustered regularly interspaced short palindromic repeats (CRISPR) has revolutionized the field of genome editing. To circumvent the permanent modifications made by traditional CRISPR techniques and facilitate the study of both essential and nonessential genes, CRISPR interference (CRISPRi) was developed. This gene-silencing technique employs a deactivated Cas effector protein and a guide RNA to block transcription initiation or elongation. Continuous improvements and a better understanding of the mechanism of CRISPRi have expanded its scope, facilitating genome-wide high-throughput screens to investigate the genetic basis of phenotypes. Additionally, emerging CRISPR-based alternatives have further expanded the possibilities for genetic screening. This review delves into the mechanism of CRISPRi, compares it with other high-throughput gene-perturbation techniques, and highlights its superior capacities for studying complex microbial traits. We also explore the evolution of CRISPRi, emphasizing enhancements that have increased its capabilities, including multiplexing, inducibility, titratability, predictable knockdown efficacy, and adaptability to nonmodel microorganisms. Beyond CRISPRi, we discuss CRISPR activation, RNA-targeting CRISPR systems, and single-nucleotide resolution perturbation techniques for their potential in genome-wide high-throughput screens in microorganisms. Collectively, this review gives a comprehensive overview of the general workflow of a genome-wide CRISPRi screen, with an extensive discussion of strengths and weaknesses, future directions, and potential alternatives.
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Affiliation(s)
- Silke Vercauteren
- Center for Microbiology, VIB - KU Leuven, Gaston Geenslaan 1, 3001 Leuven, Belgium
- Centre of Microbial and Plant Genetics, KU Leuven, Kasteelpark Arenberg 20, box 2460, 3001 Leuven, Belgium
| | - Simon Fiesack
- Center for Microbiology, VIB - KU Leuven, Gaston Geenslaan 1, 3001 Leuven, Belgium
- Centre of Microbial and Plant Genetics, KU Leuven, Kasteelpark Arenberg 20, box 2460, 3001 Leuven, Belgium
| | - Laetitia Maroc
- Center for Microbiology, VIB - KU Leuven, Gaston Geenslaan 1, 3001 Leuven, Belgium
- Centre of Microbial and Plant Genetics, KU Leuven, Kasteelpark Arenberg 20, box 2460, 3001 Leuven, Belgium
| | - Natalie Verstraeten
- Center for Microbiology, VIB - KU Leuven, Gaston Geenslaan 1, 3001 Leuven, Belgium
- Centre of Microbial and Plant Genetics, KU Leuven, Kasteelpark Arenberg 20, box 2460, 3001 Leuven, Belgium
| | - Liselot Dewachter
- de Duve Institute, Université catholique de Louvain, Hippokrateslaan 75, 1200 Brussels, Belgium
| | - Jan Michiels
- Center for Microbiology, VIB - KU Leuven, Gaston Geenslaan 1, 3001 Leuven, Belgium
- Centre of Microbial and Plant Genetics, KU Leuven, Kasteelpark Arenberg 20, box 2460, 3001 Leuven, Belgium
| | - Sibylle C Vonesch
- Center for Microbiology, VIB - KU Leuven, Gaston Geenslaan 1, 3001 Leuven, Belgium
- Centre of Microbial and Plant Genetics, KU Leuven, Kasteelpark Arenberg 20, box 2460, 3001 Leuven, Belgium
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Aboderin AO, Amfoabegyi S, Awopeju AT, Bahrami-Hessari M, Garchie EIA, Gill M, Karikari A, Kirby A, Makanjuola O, Mutiu B, Offiong AB, Oshun PO, Osumanu HA, Owusu-Ofori A, Varghese SR, Adam-Zakariah LI, Adebanjo AT, Aguirre CC, Akoto E, Aminu A, Armah R, Aruldas ND, Choudhrie AV, Coompson CL, Ekwunife OH, Fourtounas M, Lawani S, Mathew AJ, Patel A, Ademuyiwa AO, Hardy P, Runigamugabo E, Sodonougbo P, Behanzin H, Kangni S, Agboton G, Adagrah LA, Adjei-Acquah E, Acquah AO, Ankomah J, Armah R, Acquah R, Addo KG, Acheampong DO, Adu-Aryee NA, Abubakari F, Titigah A, Owusu F, Adu-Brobbey R, Adobea V, Abantanga FA, Gautham A, Bhatti D, Jesudason EDM, Aggarwal M, Alexander P, Dasari A, Alpheus R, Kumar H, Raul S, Bueno WÁ, Ortiz RC, Gomez IB, Cerdan CC, Gallo MB, Gamez RR, Sánchez ID, Abdullahi L, Adesanya O, Abdulsalam M, Adeleye V, Egwuonwu O, Adeleke A, Adebayo F, Chiejina G, Abayomi O, Abdur-Rahman L, Ede J, Ezinne U, Kanyarukiko S, Dusabe M, Hirwa AD, Bucyibaruta G, Adams MA, Birtles C, Ally Z, Adewunmi AS, Cook J, Brown J, Adisa AO, Ismail L, Bhangu A, Omar O, Simoes JFF, Li E, Chaudhry D, Saeed S, Spurring EM, Verjee A, Assouto P, Seto DM, Kpangon C, Ahossi R, Alhassan BBA, Agyekum V, Adam-Zakariah LI, Assah-Adjei F, Asare C, Amoako J, Akosa EA, Acquaye J, Adjei F, Ballu C, Coompson CL, Bennin A, Abdulai DR, Hepzibah A, Bhatti W, Paul PK, Dhamija P, Thomas J, Jacob P, Choudhrie A, Peters N, Sharma R, Camacho FB, Gonzalez GH, Aguirre CC, Solano DD, Flores AC, Menindez RL, Vazquez DG, Ado K, Awonuga D, Adeniran A, Ademuyiwa A, Ekwunife O, Adenikinju W, Aisuodionoe-Shadrach O, Edet E, Abdus-Salam R, Adeleke N, Ekenze S, Francis M, Mukaneza F, Izabiriza E, Kabanda E, Bunogerane GJ, Crawford R, Ivy M, Jayne D, Cousens S, Chakrabortee S, Ghosh D, Gyamfi FE, Brant F, Fiogbe M, Tandje Y, Akpla M, Ngabo RB, Amoako-Boateng MP, Agyemang E, Asabre E, Boakye AA, Gakpetor DA, Appiah AD, Boakye P, Adinku M, Akoto E, Barimah CG, Labaran AH, Dankwah F, Acquah DK, Mary G, Bir K, Madankumar L, Gupta H, Zechariah P, Kurien E, Vakil R, Hernández AB, Krauss RH, Avendaño AC, Garcia RT, Ojeda AG, Peón AN, Lara MM, Aliyu M, Fasiku O, Ajai O, Adeniyi O, Modekwe V, Adeniyi O, Akaba G, Inyang A, Adebayo S, Adesola M, Enemuo V, Ikechukwu I, Mukantibaziyaremye D, Maniraguha HL, Mbonimpaye S, Habumuremyi S, Ede CJ, Mbavhalelo C, Laurberg S, Smart N, de la Medina AR, Brocklehurst P, Koco H, Chobli HH, Bisimwa N, Appiah AB, Akesseh RA, Boateng RA, Fosu G, Gawu VS, Aseti M, Coompson CL, Agbedinu K, Ametefe E, Boateng GC, Owusu JA, Doe S, Ayingayure E, Singh D, Daniel S, Mittal R, Kanna V, Mathew A, Arellano AB, Miguelena LH, Sansores LD, Velasco MJ, Muñoz MP, Perez-Maldonado LM, Anyanwu LJ, Ogo C, Akande O, Akinajo O, Okoro C, Adepiti A, Ameh L, Isa M, Ajao A, Afolabi R, Eze M, Nnyonno O, Munyaneza A, Mpirimbanyi C, Mukakomite C, Haragirimana JDD, Fourtounas M, Moore R, Chakrabortee S, Metchinhoungbe S, Kovohouande B, Kandokponou CMB, Asante-Asamani A, Amponsah-Manu F, Koomson B, Serbeh G, Obbeng A, Banka C, Gyamfi B, Agbeko AE, Amoako JK, Luri PT, Kantanka RS, Osman I, Dhar T, Nagomy I, Kumar A, Prakash D, Torres EC, Romero MH, Mejia HO, de la Fuente ANS, Magashi M, Atobatele K, Akinboyewa D, Uche C, Aderounmu A, Mbajiekwe N, Iseh F, Amusat O, Agodirin S, Ezomike U, Okoro P, Ndegamiye G, Mutuyimana J, Muroruhirwe P, Imanishimwe A, Hyman G, Hardy P, Ntirenganya F, Sogbo H, Dokponou M, Boakye B, Ofosu-Akromah R, Kusiwaa A, Gyan KY, Ofosuhene D, Dadzie S, Kontor BE, Amankwa EG, Attepor GS, Kobby E, Kunfah S, Dhiman J, Selvakumar R, Singh G, Susan A, Orozco CF, del Campo LUG, de la Medina ARD, Muhammad A, Eke G, Alasi I, Ugwuanyi K, Adesunkanmi A, Ogbo F, Marwa A, Ayandipo O, Aremu I, Izuka E, Patrick I, Tubasiime R, Mwenedata O, Ingabire JCA, Khan Z, Harrison E, Tabiri S, Glasbey J, Dossou FM, Debrah SA, Enti D, Twerefour EY, Nyarko IO, Osei-Poku D, Essien D, Kyeremeh C, Amoah M, Brown GD, Larnyor KKKH, Limann G, Ghosh D, Shankar B, Varghese R, de Rojas EGG, Muhammad S, Faboya O, Alakaloko F, Ugwunne C, Adisa A, Olori S, Ogbeche S, Egbuchulem K, Bello J, Mbadiwe O, Raphael J, Rwagahirima E, Mukanyange V, Kwati M, Dzemta C, Ganiyu RA, Robertson Z, Puozaa D, Gyamfi FE, Manu R, Amoah G, Fenu B, Osei E, Mohammed SA, Goyal S, Sivakumar M, Muideen B, Imam Z, Atoyebi O, Ajekwu S, Osagie O, Olory E, Ekwuazi H, Lawal S, Mbah N, Vaduneme O, Uwizeyimana F, Munyaneza E, Mathe MN, Haque PD, Gaou A, Koggoh P, Tackie E, Hussey R, Mensah E, Appiah J, Kumassah PK, Owusu PY, Mohammed S, Goyal A, Sridhar R, Ramírez BG, Takai I, Momson E, Balogun O, Ajenjfuja O, Sadiq A, Udie G, Elemile P, Lawal A, Victor A, Zirikana J, Mutabazi E, Moore R, Heritage E, Goudou R, Kpankpari R, Temitope AE, Kwarteng J, Solae FI, Arthur J, Olayiwola DO, Sie-Broni CA, Musah Y, Goyal S, Thomas C, Valadez MHV, Ukata O, Nwaenyi F, Belie O, Akindojutimi J, Sani S, Udosen J, Lawal T, Raji H, Ncogoza I, Nhlabathi NA, Hedefoun E, Opandoh INM, Sowah NA, Toffah GK, Ayim A, Wordui T, Zume M, Ofori B, Hans M, Titus D, Acevedo DL, Ogunyemi A, Bode C, Akinkuolie A, Tabuanu N, Usang U, Lawal O, Sayomi O, Ntirenganya F, Nxumalo HS, Kroese K, Houtoukpe S, Manu MA, Yeboah G, Ayodeji EK, Agboadoh N, Owusu EA, Haque P, Galaviz RM, Oludara M, Ekwesianya A, Alatise O, Uanikhoba M, Olagunju S, Shittu A, Nyirahabimana J, Pattinson P, Lillywhite R, Lapitan C, Kamga F, Manu MPO, Yeboah C, Boakye-Yiadom J, Saba AH, Konda S, Flores OO, Omisanjo O, Elebute O, Allen O, Osuala P, Urimubabo C, Sentholang N, Kiki-Migan E, Mensah S, Boateng EA, Seidu AS, Luther A, Navarro JP, Oshodi O, Ezenwankwo F, Amosu L, Suleman B, Sethoana ME, Lissauer D, Lawani S, Morna MT, Dally C, Tabiri S, Mahajan A, Belmontes KP, Oshodi Y, Fatuga A, Archibong M, Takure A, Stassen ME, Magill L, Lawani I, Nkrumah J, Davor A, Yakubu M, Makkar S, Marbello FR, Oyewole Y, Ihediwa G, Arowolo O, Thornley L, Morton D, Loko R, Nortey M, Gyasi-Sarpong CK, Yenli EMTA, Mandrelle K, Ramírez-González L, Salami O, Jimoh A, Ayantona D, Wondoh P, Nepogodiev D, Mistry P, Moutaïrou A, Ofori EO, Hamidu NNN, Michael V, Aguirre LR, Williams O, Kuku J, Ayinde A, Monahan M, Ogouyemi P, Quartson EMQ, Haruna I, Mukherjee P, García RR, Ladipo-Ajayi O, Badejoko O, Soumanou F, Kwarley N, Rajappa R, Robles EV, Makanjuola A, Badmus T, Smith D, Tamadaho P, Lovi AK, Singh P, Mokwenyei O, Etonyeaku A, Zounon MA, Nimako B, Suroy A, Nwokocha S, Igbodike E, Nyadu BB, Thind R, Ogein O, Ijarotimi O, Opoku D, Thomas A, Ojewola R, Lawal A, Pinkney T, Osabutey A, Tuli A, Oladimeji A, Nana F, Roberts T, Sagoe R, Veetil S, Olajide T, Oduanafolabi T, Tuffour S, Oluseye O, Olasehinde O, Tufour Y, Seyi-Olajide J, Olayemi O, Winkles N, Yamoah FA, Soibi-Harry A, Omitinde S, Yefieye AC, Ugwu A, Oni O, Yorke J, Williams E, Onyeze C, Orji E, Rotimi A, Salako A, Solaja O, Sowemimo O, Talabi A, Tajudeen M, Wuraola F. Microbiology testing capacity and antimicrobial drug resistance in surgical-site infections: a post-hoc, prospective, secondary analysis of the FALCON randomised trial in seven low-income and middle-income countries. Lancet Glob Health 2024:S2214-109X(24)00330-9. [PMID: 39245054 DOI: 10.1016/s2214-109x(24)00330-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 07/21/2024] [Accepted: 07/25/2024] [Indexed: 09/10/2024]
Abstract
BACKGROUND Surgical-site infection (SSI) is one of the most common health-care-associated infections, substantially contributing to antibiotic use. Targeted antibiotic prophylaxis to prevent SSIs and effective treatment are crucial to controlling antimicrobial resistance (AMR). This study aimed to describe the testing capacity and multidrug resistance (MDR) of SSI microorganisms in low-income and middle-income countries (LMICs). METHODS This analysis included patients undergoing abdominal surgery in seven LMICs (Benin, Ghana, India, Mexico, Nigeria, Rwanda, and South Africa) as part of the FALCON randomised controlled trial. Wound swabs were collected from patients diagnosed with SSI, as per US Centers for Disease Control and Prevention (CDC) definition. Data on microorganism species and MDR, as per CDC and European Centre for Disease Prevention and Control definitions, were analysed alongside hospital-level data on local microbiological practices. An adjusted analysis was performed to identify perioperative factors associated with MDR. Testing capacity was assessed by the completion of swab testing in positively diagnosed SSIs. FINDINGS Between Dec 10, 2018, and Sept 7, 2020, 5788 patients were recruited to the FALCON trial. 1163 patients were diagnosed with an SSI, of whom 905 (77·8%) received prophylactic antibiotics before surgery. In patients with SSIs, 935 of 1163 (80·4%) did not have a wound swab; 195 were from hospitals not performing swabs (15 hospitals) and 740 were from hospitals with capacity but no swab performed (35 hospitals). Of 228 patients swabbed, 200 (88·5%) had microorganisms detected. Escherichia coli (89 of 200, 37·9%) was the most common microorganism and 116 of 200 (58·0%) patients were not covered by the perioperative prophylactic antibiotic. MDR was found in 102 of 147 (69·4%) patients for whom data were available to determine MDR status. Adjusted analysis found that appropriate prophylactic antibiotic coverage (adjusted odds ratio 0·43, 95% CI 0·19-0·96) and regular availability of infection control teams (0·32, 0·11-0·93) were associated with a significant reduction in MDR. INTERPRETATION Targeted perioperative antibiotic prophylaxis during contaminated abdominal surgery is insufficient in LMICs, with very few SSI organisms undergoing formal diagnosis. Expansion of testing capacity, development of local guidelines, and implementation of infection control teams could support the prevention of SSI through directed antibiotic prophylaxis, subsequently reducing the burden of MDR. FUNDING National Institute for Health and Care Research. TRANSLATIONS For the French and Spanish translations of the abstract see Supplementary Materials section.
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Hu Z, Shan J, Jin X, Sun W, Cheng L, Chen XL, Wang X. Nanoarchitectonics of in Situ Antibiotic-Releasing Acicular Nanozymes for Targeting and Inducing Cuproptosis-like Death to Eliminate Drug-Resistant Bacteria. ACS NANO 2024; 18:24327-24349. [PMID: 39169538 DOI: 10.1021/acsnano.4c06565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
A series of progress has been made in the field of antimicrobial use of nanozymes due to their superior stability and decreased susceptibility to drug resistance. However, catalytically generated reactive oxygen species (ROS) are insufficient for coping with multidrug-resistant organisms (MDROs) in complex wound environments due to their low targeting ability and insufficient catalytic activity. To address this problem, chemically stable copper-gallic acid-vancomycin (CuGA-VAN) nanoneedles were successfully constructed by a simple approach for targeting bacteria; these nanoneedles exhibit OXD-like and GSH-px-like dual enzyme activities to produce ROS and induce bacterial cuproptosis-like death, thereby eliminating MDRO infections. The results of in vitro experiments showed that the free carboxylic acid of GA could react with the free ammonia of teichoic acid in the methicillin-resistant Staphylococcus aureus (MRSA) cell wall skeleton. Thus, CuGA-VAN nanoneedles can rapidly "capture" MRSA in liquid environments, releasing ROS, VAN and Cu2+ on bacterial surfaces to break down the MRSA barrier, destroying the biofilm. In addition, CuGA-VAN effectively promoted wound repair cell proliferation and angiogenesis to facilitate wound healing while ensuring biosafety. According to transcriptome sequencing, highly internalized Cu2+ causes copper overload toxicity; downregulates genes related to the bacterial glyoxylate cycle, tricarboxylic acid cycle, and oxidative respiratory chain; and induces lipid peroxidation in the cytoplasm, leading to bacterial cuproptosis-like death. In this study, CuGA-VAN was cleverly designed to trigger a cascade reaction of targeting, drug release, ROS-catalyzed antibacterial activity and cuproptosis-like death. This provides an innovative idea for multidrug-resistant infections.
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Affiliation(s)
- Zhiyuan Hu
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Jie Shan
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Xu Jin
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Weijie Sun
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, P. R. China
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Xu-Lin Chen
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Xianwen Wang
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, P. R. China
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Mahmud Z, Manik MRK, Rahman A, Karim MM, Islam LN. Impact of untreated tannery wastewater in the evolution of multidrug-resistant bacteria in Bangladesh. Sci Rep 2024; 14:20379. [PMID: 39223208 PMCID: PMC11369239 DOI: 10.1038/s41598-024-71472-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024] Open
Abstract
The tannery industry produces one of the worst contaminants, and unsafe disposal in nearby waterbodies and landfills has become an imminent threat to public health, especially when the resulting multidrug-resistant bacteria and heavy metals enter community settings and animal food chains. In this study, we have collected 10 tannery wastewater (TWW) samples and 10 additional non-tannery wastewater (NTW) samples to compare the chemical oxygen demand (COD), pH, biological oxygen demand (BOD), dissolved oxygen (DO), total dissolved solids (TDS), chromium concentration, bacterial load, and antibiotic resistance profiles. While COD, pH, and chromium concentration data were previously published from our lab, this part of the study uncovers that TWW samples had a significantly higher bacterial load, compared to the non-tannery wastewater samples (5.89 × 104 and 9.38 × 103 cfu/mL, respectively), higher BOD and TDS values, and significantly lower DO values. The results showed that 53.4, 46.7, 40.0, and 40.0% of the TWW isolates were resistant to ceftriaxone, erythromycin, nalidixic acid, and azithromycin, respectively. On the other hand, 20.0, 30.0, 50.0, and 40.0% of the NTW isolates were resistant to the same antibiotics, respectively. These findings suggest that the TWW isolates were more resistant to antibiotics than the NTW isolates. Moreover, the TWW isolates exhibited higher multidrug resistance than the NTW isolates, 33.33, and 20.00%, respectively. Furthermore, spearman correlation analysis depicts that there is a negative correlation between BOD and bacterial load up to a certain level (r = - 0.7749, p = 0.0085). In addition, there is also a consistent negative correlation between COD and bacterial load (r = - 0.7112, p = 0.0252) and TDS and bacterial load (r = - 0.7621, p = 0.0104). These findings suggest that TWW could pose a significant risk to public health and the environment and highlight the importance of proper wastewater treatment in tannery industries.
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Affiliation(s)
- Zimam Mahmud
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh.
| | - Md Rasel Khan Manik
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Adua Rahman
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh
| | | | - Laila N Islam
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka, 1000, Bangladesh.
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Huma ZE, Saleem S, Imran M, Raza SM, Jabeen K, Arshad F. Role of ERG11 and MDR1 genes in cycloheximide and multidrug resistance in Candida species. Braz J Microbiol 2024; 55:2569-2579. [PMID: 38980650 PMCID: PMC11405649 DOI: 10.1007/s42770-024-01436-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Accepted: 06/24/2024] [Indexed: 07/10/2024] Open
Abstract
Candida species are amongst the commensals of the mucosal surfaces of the human body which include the oral cavity, vagina, and intestinal mucosa. Fungal infections are on the rise worldwide. The overall burden of infections due to fungi is difficult to estimate because the majority of them remain undiagnosed. The present study aims to determine the burden of antifungal resistance in low socioeconomic country, Pakistan and the frequency of ERG11 and MDR1 genes involved. A total of 636 Candida isolates were obtained from various tertiary care institutions in Lahore in the form of culture on various culture plates. Sabouraud agar culture plates were used to culture the Candida spp. Antifungal resistance was determined against Fluconazole, Itraconazole, Ketoconazole, and Nystatin via disk diffusion technique. Most resistance was observed against Fluconazole followed by Itraconazole, Ketoconazole, and Nystatin. The Candida isolates recovering from CVP tip and tissue have a high resistance profile. Candida species resistant to at least two antifungals were chosen for further ERG11 and MDR1 detection through real-time PCR. Among 255 Candida isolates, 240 contained ERG11 gene while MDR1 gene is present in 149 Candida isolates. The isolates carrying both genes were tested by the broth microdilution technique for the susceptibility against cycloheximide, all of them were able to grow in cycloheximide. The genetic determinants of antifungal resistance such as ERG11 and MDR1 are as important in the multidrug resistance against a variety of compounds and antifungal drugs.
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Affiliation(s)
- Zill-E- Huma
- Department of Microbiology, University of Health Sciences, Lahore, Pakistan.
| | - Sidrah Saleem
- Department of Microbiology, University of Health Sciences, Lahore, Pakistan
| | - Muhammad Imran
- Department of Microbiology, University of Health Sciences, Lahore, Pakistan
| | - Syed Mohsin Raza
- Department of Allied Health Sciences and Medical Education, University of Health Sciences, Lahore, Pakistan
| | - Kokab Jabeen
- Department of Microbiology, University of Health Sciences, Lahore, Pakistan
| | - Faiqa Arshad
- Department of Microbiology, University of Health Sciences, Lahore, Pakistan
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11
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Lu N, Du Z, Chu F, Xiao R, Wu Z, Wang M, Jia R, Chu W. Tracking the impact of perfluoroalkyl acid emissions on antibiotic resistance gene profiles in receiving water by metagenomic analysis. WATER RESEARCH 2024; 261:121931. [PMID: 38924952 DOI: 10.1016/j.watres.2024.121931] [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: 02/01/2024] [Revised: 05/17/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
The ecological risks posed by perfluoroalkyl acids (PFAAs) to the aquatic environment have recently been of great concern. However, little information was available on the impact of PFAAs on antibiotic resistance genes (ARGs) profiles. In this study, the receiving river of the largest fluoropolymer production facility in China was selected to investigate the effects of PFAAs on ARGs profiles. The highest PFAAs concentration for water samples near the industrial effluent discharge point was 310.9 μg/L, which was thousands times of higher than the average concentration collected at upstream sites. Perfluorooctanoic acid accounted for more than 67.2 % of ∑PFAAs concentration in water samples collected at the downstream sites, followed by perfluorohexanoic acid (3.6 %-15.9 %). 145 ARG subtypes including high-risk ARGs were detected by metagenomic technology. The results indicated that the discharge of PFAA-containing effluents had a significant impact on the abundance and diversity of ARGs in receiving waters, and PFAAs and water quality parameters (e.g., pH, NH3N, CODMn, TP) could largely affect ARG profiles. Specifically, short-chain PFAAs had similar impacts on ARG profiles compared to the restricted long-chain PFAAs. This study confirmed the potential effects of PFAAs on ARGs in aquatic environment and provided more insights into the ecological risk raised by PFAAs.
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Affiliation(s)
- Nannan Lu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shandong Provincial Water Supply and Drainage Monitoring Centre, Jinan, 250101, China
| | - Zhenqi Du
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shandong Provincial Water Supply and Drainage Monitoring Centre, Jinan, 250101, China
| | - Fumin Chu
- Shandong Provincial Water Supply and Drainage Monitoring Centre, Jinan, 250101, China
| | - Rong Xiao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Zhengdi Wu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Mingquan Wang
- Shandong Provincial Water Supply and Drainage Monitoring Centre, Jinan, 250101, China
| | - Ruibao Jia
- Shandong Provincial Water Supply and Drainage Monitoring Centre, Jinan, 250101, China.
| | - Wenhai Chu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China.
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Keri VC, Gupta A, Mohapatra S, Soneja M, Kapil A, Xess I, Wig N, Das BK. Early organism identification by Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry (MALDI-TOF-MS) decreases the time to appropriate antibiotic modifications for common bacterial infections. LE INFEZIONI IN MEDICINA 2024; 32:330-339. [PMID: 39282542 PMCID: PMC11392554 DOI: 10.53854/liim-3203-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 07/15/2024] [Indexed: 09/19/2024]
Abstract
Objective MALDI-TOF-MS facilitates the identification of microorganisms from positive cultures in a timely and accurate manner. It eliminates the necessity for the application of biochemicals and operates on the principle of proteomics. It decreases the time required to report culture results. Prompt detection and notification of the pathogen, prior to the disclosure of antimicrobial susceptibilities, could potentially shorten the duration until the initial antibiotic adjustment is necessary, thereby influencing patients' clinical prognoses. Methodology Fifty patients in the conventional arm and one hundred patients in the interventional arm were compared in a pre and post quasi-experimental study conducted at a tertiary care centre in North India. Patients with positive cultures from medical wards and intensive care units were included. Comparing the time to first antibiotic modification after culture positivity, MALDI-TOF-MS-based identification, and clinical outcomes in both arms was the primary objective. Antibiotic modifications, escalation, and de-escalation were all recorded. Results The intervention arm exhibited a substantially shorter median time to first antibiotic modification (2010 mins vs 2905 mins, p=0.002) than the conventional arm. In the interventional group, a total of 44 out of 100 antibiotic modifications were implemented. Of these, 19 (43.3%) were determined solely by the MALDI report, without the anticipation of susceptibility assessments. De-escalation of antibiotics constituted the pre-dominant form of modification (47.4%). The difference between the 27% and 32% mortality rates in the intervention arm and the conventional arm was not statistically significant (p=0.52). Conclusion MALDI-TOF-MS facilitates the modification of antibiotics early on. The primary benefit lies in the reduction of superfluous antibiotic usage. Early organism identification and reporting prior to the availability of susceptibility results did not result in any mortality benefit. This strategy, when combined with a strong antimicrobial stewardship programme, can aid in the reduction of antibiotic use.
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Affiliation(s)
- Vishakh C Keri
- Department of Medicine and Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Ankesh Gupta
- Department of Medicine and Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Sarita Mohapatra
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Manish Soneja
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Arti Kapil
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Immaculata Xess
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Naveet Wig
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Bimal Kumar Das
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
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13
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Selci M, Correggia M, Cordone A, Guida M, Quero GM, Piredda R, Vetriani C, Ramirez C, Lloyd KG, de Moor JM, Barry PH, Schrenk MO, Giovannelli D. Recreational hot springs as environmental reservoir of potential multidrug-resistant pathogens. ENVIRONMENTAL RESEARCH 2024:119841. [PMID: 39182755 DOI: 10.1016/j.envres.2024.119841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 08/21/2024] [Accepted: 08/22/2024] [Indexed: 08/27/2024]
Affiliation(s)
- Matteo Selci
- Department of Biology, University of Naples Federico II, Naples, Italy; Department of Marine and Coastal Science, Rutgers University, New Brunswick, NJ, USA
| | - Monica Correggia
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Angelina Cordone
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Marco Guida
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Grazia Marina Quero
- Institute for Marine Biological and Biotechnological Resources, National Research Council of Italy (CNR-IRBIM), Ancona, Italy
| | - Roberta Piredda
- Department of Veterinary Medicine - University of Bari Aldo Moro, Bari, Italy
| | - Costantino Vetriani
- Department of Marine and Coastal Science, Rutgers University, New Brunswick, NJ, USA; Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, USA
| | | | - Karen G Lloyd
- Microbiology Department, University of Tennessee, Knoxville, TN, USA
| | - J Maarten de Moor
- Observatorio Volcanológico y Sismológico de Costa Rica (OVSICORI), Universidad Nacional, Heredia, Costa Rica
| | - Peter H Barry
- Marine Chemistry & Geochemistry Department - Woods Hole Oceanographic Institution, MA, USA
| | - Matthew O Schrenk
- Department of Earth and Environmental Sciences, Michigan State University, East Lansing, MI, USA
| | - Donato Giovannelli
- Department of Biology, University of Naples Federico II, Naples, Italy; Institute for Marine Biological and Biotechnological Resources, National Research Council of Italy (CNR-IRBIM), Ancona, Italy; Department of Marine and Coastal Science, Rutgers University, New Brunswick, NJ, USA; Marine Chemistry & Geochemistry Department - Woods Hole Oceanographic Institution, MA, USA; Earth-Life Science Institute, Tokyo Institute for Technology, Tokyo, Japan.
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14
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Pelliccia S, Russomanno P, Barone S, Mateu B, Alfano AI, Miranda M, Coretti L, Lembo F, Piccolo M, Irace C, Friggeri L, Hargrove TY, Curtis A, Lepesheva GI, Kavanagh K, Buommino E, Brindisi M. A First-in-Class Pyrazole-isoxazole Enhanced Antifungal Activity of Voriconazole: Synergy Studies in an Azole-Resistant Candida albicans Strain, Computational Investigation and in Vivo Validation in a Galleria mellonella Fungal Infection Model. J Med Chem 2024; 67:14256-14276. [PMID: 39115219 DOI: 10.1021/acs.jmedchem.4c01109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
The widespread and irrational use of azole antifungal agents has led to an increase of azole-resistant Candida albicans strains with an urgent need for combination drug therapy, enhancing the treatment efficacy. Here, we report the discovery of a first-in-class pyrazole-isoxazole, namely, 5b, that showed remarkable growth inhibition against the C. albicans ATCC 10231 strain in combination with voriconazole, acting as a downregulator of ERG 11 (Cyp51) gene expression with a significant reduction of the yeast-to-hypha morphological transition. Furthermore, C. albicans CYP51 enzyme assay and in-depth molecular docking studies unveiled the unique ability of the combination of 5b and voriconazole to completely fill the CYP51 binding sites. In vivo studies using a Galleria mellonella model confirmed the previously in vitro observed synergistic effect of 5b with voriconazole. Also considering its biocompatibility in a cellular model of human keratinocytes, these results indicate that 5b represents a promising compound for a further optimization campaign.
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Affiliation(s)
- Sveva Pelliccia
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Pasquale Russomanno
- Magnetic Resonance Centre (CERM), Consorzio Interuniversitario Risonanze Magnetiche di Metallo Proteine (CIRMMP) and Department of Chemistry "Ugo Schiff", University of Florence, Via L. Sacconi 6, Sesto Fiorentino 50019, Italy
| | - Simona Barone
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Baptiste Mateu
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Antonella Ilenia Alfano
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Martina Miranda
- Department of Pharmaceutical and Cell Biological Chemistry, Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
| | - Lorena Coretti
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Francesca Lembo
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Marialuisa Piccolo
- BioChemLab, Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Carlo Irace
- BioChemLab, Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Laura Friggeri
- Department of Cell and Development Biology, U4225 Medical Research Building III, 465 21st Avenue South Room 4160 MRB III Nashville, Tennessee 37232, United States
| | - Tatiana Y Hargrove
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
| | - Aaron Curtis
- Department of Biology, Maynooth University, W23 F2H6 Maynooth, Co. Kildare, Ireland
| | - Galina I Lepesheva
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
| | - Kevin Kavanagh
- Department of Biology, Maynooth University, W23 F2H6 Maynooth, Co. Kildare, Ireland
| | - Elisabetta Buommino
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
| | - Margherita Brindisi
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131 Naples, Italy
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15
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Zhang H, Wu T, Ruan H. Identification and Functional Analysis of ncRNAs Regulating Intrinsic Polymyxin Resistance in Foodborne Proteus vulgaris. Microorganisms 2024; 12:1661. [PMID: 39203505 PMCID: PMC11356903 DOI: 10.3390/microorganisms12081661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/01/2024] [Accepted: 08/07/2024] [Indexed: 09/03/2024] Open
Abstract
Polymyxin, known as the "last line of defense" against bacterial infection, exerts a significant inhibitory effect on a wide range of Gram-negative pathogenic bacteria. The presence of strains, specifically Proteus vulgaris species, displaying intrinsic polymyxin resistance poses significant challenges to current clinical treatment. However, the underlying mechanism responsible for this intrinsic resistance remains unclear. Bacterial non-coding RNAs (ncRNAs) are abundant in genomes and have been demonstrated to have significant regulatory roles in antibiotic resistance across various bacterial species. However, it remains to be determined whether ncRNAs in Proteus vulgaris can regulate intrinsic polymyxin resistance. This study focused on investigating the foodborne Proteus vulgaris strain P3M and its intrinsic polymyxin resistance regulation mediated by ncRNAs. Through a combination of bioinformatics analysis, mutant construction, and phenotypic experimental verification, we successfully identified the ncRNAs involved and their potential target genes. These findings serve as an essential foundation for the precise identification of ncRNAs participating in the intricate regulation process of polymyxin resistance. Additionally, this study offers valuable insights into the efficient screening of bacterial ncRNAs that contribute positively to antibiotic resistance regulation.
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Affiliation(s)
| | | | - Haihua Ruan
- Tianjin Key Laboratory of Food Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (H.Z.); (T.W.)
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16
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Do AD, Quang HP, Phan QK. Probiotic cell-free supernatant as effective antimicrobials against Klebsiella pneumoniae and reduce antibiotic resistance development. Int Microbiol 2024:10.1007/s10123-024-00575-x. [PMID: 39117894 DOI: 10.1007/s10123-024-00575-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/01/2024] [Accepted: 08/06/2024] [Indexed: 08/10/2024]
Abstract
This study evaluated the antimicrobial activity, resistance development, and synergistic potential of cell-free supernatant (CFSs) derived from Levilactobacillus brevis (Lb-CFS) and Lactiplantibacillus plantarum (Lp-CFS) against Klebsiella pneumoniae. Both CFSs exhibited potent growth inhibition, with minimum inhibitory concentrations (MICs) of 128 μg/mL and 64 μg/mL for Lb-CFS and Lp-CFS, respectively, and demonstrated dose-dependent bactericidal activity, achieving complete bacterial eradication at minimum bactericidal concentrations (MBC) within 6 h. The CFSs suppressed the expression of virulence genes (galF, wzi, and manC) and biofilm formation in a dose-dependent manner. Synergistic interactions were observed when combining CFSs with antibiotics, resulting in 2- to fourfold reductions in antibiotic MICs and MBCs. Notably, adaptive evolution experiments revealed significantly slower resistance development in K. pneumoniae against CFSs (twofold MIC/MBC increase) compared to antibiotics (16- to 128-fold increase) after 21 days. Furthermore, CFS-adapted strains exhibited increased antibiotic susceptibility, while antibiotic-adapted strains displayed cross-resistance to multiple antibiotics. No cross-resistance occurred between Lb-CFS and Lp-CFS, suggesting distinct adaptive mechanisms. These findings highlight the potential of probiotic-derived CFSs as effective antimicrobials with a lower propensity for inducing rapid resistance compared to conventional antibiotics, suggesting their promise in combating multidrug-resistant infections.
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Affiliation(s)
- Anh Duy Do
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam.
| | - Hoa Pham Quang
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
| | - Quang Khai Phan
- Department of Biotechnology, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
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17
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Abu-Farha R, Gharaibeh L, Alzoubi KH, Nazal R, Zawiah M, Binsaleh AY, Shilbayeh SAR. Awareness, perspectives and practices of antibiotics deprescribing among physicians in Jordan: a cross-sectional study. J Pharm Policy Pract 2024; 17:2378484. [PMID: 39040635 PMCID: PMC11262212 DOI: 10.1080/20523211.2024.2378484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 07/04/2024] [Indexed: 07/24/2024] Open
Abstract
Background Antibiotics have significantly reduced mortality and improved outcomes across various medical fields; however, the rise of antibiotic resistance poses a major challenge, causing millions of deaths annually. Deprescribing, a process that involves discontinuing unnecessary antibiotics, is crucial for combating this threat. This study was designed to assess the knowledge, perceptions, and practices of physicians regarding antibiotic deprescribing in Jordan. Methods A cross-sectional survey was conducted between January-February 2024 to assess the knowledge, perceptions, and practices of physicians regarding antibiotic deprescribing in Jordan. An electronic questionnaire served as the data collection tool. Descriptive analysis was performed using SPSS software version 26. Additionally, logistic regression analysis was carried out to identify independent factors associated with physicians' willingness to deprescribe antibiotics. Results The study involved 252 physicians, primarily male (n = 168, 67.7%), with a median age of 33 years. Regarding antibiotics deprescribing, 21.8% (n = 55) expressed willingness to deprescribe inappropriate antibiotics.High awareness of deprescribing was evident, with 92.9% (n = 234) familiar with the concept, 94% (n = 237) knowledgeable about appropriate situations, and 96.8% (n = 244) recognising its potential benefits. Furthermore, 81.8% (n = 205) reported having received formal training in antibiotics deprescribing, and 85.3% (n = 215) were informed about the availability of deprescribing tools.Physicians highlighted challenges including insufficient time (44.4%, n = 112) and resistance from patients (41.3%, n = 104) and colleagues (42.1%, n = 106). Despite challenges, a significant proportion regularly assessed antibiotic necessity (46.9%, n = 117) and educated patients about antibiotic-related harms (40.5%, n = 102). Logistic regression analysis revealed no significant demographic factors influencing physicians' willingness to deprescribe antibiotics (p > 0.05). Conclusion Physicians in Jordan exhibit high awareness of antibiotics deprescribing and recognise its benefits. Challenges such as time constraints and communication barriers need to be addressed to facilitate effective deprescribing practices. Comprehensive guidelines and interdisciplinary collaboration are essential for promoting judicious antibiotic use and combating antimicrobial resistance.
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Affiliation(s)
- Rana Abu-Farha
- Clinical Pharmacy and Therapeutics Department, Faculty of Pharmacy, Applied Science Private University, Amman, Jordan
| | - Lobna Gharaibeh
- Biopharmaceutics and Clinical Pharmacy Department, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, Jordan
| | - Karem H. Alzoubi
- Department of Pharmacy Practice and Pharmacotherapeutics, University of Sharjah, Sharjah, UAE
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Rawand Nazal
- Clinical Pharmacy and Therapeutics Department, Faculty of Pharmacy, Applied Science Private University, Amman, Jordan
| | - Mohammed Zawiah
- Department of Clinical Practice, College of Pharmacy, Northern Border University, Rafha, Saudi Arabia
- Department of Pharmacy Practice, College of Clinical Pharmacy, Hodeidah University, Al Hodeida, Yemen
| | - Ammena Y. Binsaleh
- Department of Pharmacy Practice, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Sireen Abdul Rahim Shilbayeh
- Department of Pharmacy Practice, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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18
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Christelle Nadia NA, Yaghoobi M, Cédric Y, Besati M, Misparine Kiki Y, Aboubakar Sidiki NN, Azizi MA, Khan Payne V, Hu H. Anthelmintic Activity of Ethanolic and Aqueous Extracts of Khaya grandifoliola Stem Bark against Heligmosomoides polygyrus: In Vitro and In Silico Approaches. J Trop Med 2024; 2024:6735764. [PMID: 39050406 PMCID: PMC11268970 DOI: 10.1155/2024/6735764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 06/12/2024] [Accepted: 07/08/2024] [Indexed: 07/27/2024] Open
Abstract
Background Parasitic infection remains a serious health trade for humans and livestock. The purpose of this study was to present scientific proof of the anthelmintic properties of Khaya grandifoliola, which the native population uses to cure helminthiasis. Method Fresh Heligmosomoides polygyrus eggs were isolated from faecal samples of experimentally infected mice. The faecal material was cultured, and L1 and L2 larval stages were recovered after 48 and 120 hours, respectively. Using the worm microtracker, the anthelminthic efficacy of the extracts against H. polygyrus was assessed. Two different extracts (aqueous and ethanol extracts) were prepared. For the ovicidal and larvicidal activities, 100 µL of various concentrations of plant extracts, levamisole and 1.5% dimethyl sulfoxide (DMSO), were introduced into a 96-well microplate titer followed by the addition of 100 µL of embryonated eggs (60 eggs) for the ovicidal activity and 100 µL of L 1 or L 2 larvae (50 larvae) for the larvicidal activity. The movement of the worm was monitored for 24 hours in the worm microtracker at 27°C. The Glide module of the Schrodinger Maestro software was used to perform docking studies. Results For the aqueous extracts, the highest percentage of inhibition of hatching was 42.77 ± 12% at 7.5 mg/mL. The IC50 values for the ethanol (0.36 mg/mL) extract showed that the ethanol extract had a good inhibitory effect on the ability of parasites to hatch from eggs. The inhibition percentage of L1 larvae motility at 7.5 mg/mL was 98.0 ± 1.66% and 83.33 ± 1.66% for ethanol and aqueous extracts, respectively. The negative controls, distilled water and 1.5% DMSO, had no inhibitory impact on larvae. On L1-larvae, the drug of choice levamisole (positive control) had the highest percentage effect (100.0%). Six compounds had the highest docking score and their interactions with the receptor as well. Grandiamide A interacts most with tyrosine, glycine, phenylalanine, asparagine, and serine, and its benzene ring and oxygens inhibit these receptors. Carbonyl and hydroxyl (OH) groups connect grandiamide D to asparagine, isoleucine, and phenylalanine, respectively. By donating hydrogen to the receptor through OH groups, D-glucopyranose-6-phosphate also forms relatively strong hydrogen bonds with its oxygen-bound phosphorus and the receptor. 1-O-deacetylkhayanolide E interacts most with serine and glutamic acid. The carbamic acid benzyl ester of carbamic acid [(1S)-1-phenyl-2-[(4-methylphenyl) sulfinyl] ethyl] interacts most with the receptor with carbonyl groups and with asparagine and serine. With its abundant hydroxide, D-mannitol acts as a hydrogen donor and acceptor and interacts most strongly with amino acids such as glycine, asparagine, aspartic acid, alanine, and glutamic acid. Conclusions K. grandifoliola extracts possess anthelminthic properties. However, in vivo studies are still necessary to demonstrate the effectiveness of this plant for the treatment of helminthiasis.
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Affiliation(s)
- Noumedem Anangmo Christelle Nadia
- Department of Microbiology, Haematology and ImmunologyFaculty of Medicine and Pharmaceutical SciencesUniversity of Dschang, P.O. Box 96, Dschang, Cameroon
- Laboratory of Tropical and Emerging Infectious Diseases, Buea, Cameroon
| | - Mahdi Yaghoobi
- Molecular Design and SynthesisDepartment of ChemistryKU Leuven, Celestijnenlaan 200F, Leuven B-3001, Belgium
| | - Yamssi Cédric
- Laboratory of Tropical and Emerging Infectious Diseases, Buea, Cameroon
- Department of Biomedical SciencesFaculty of Health SciencesUniversity of Bamenda, P.O. Box 39, Bambili, Cameroon
| | - Masoud Besati
- Institute for Integrative Systems Biology (I2SysBio)CSIC-University of Valencia, Paterna 46980, Spain
| | - Yungong Misparine Kiki
- Department of Medical Laboratory SciencesFaculty of Health SciencesUniversity of Bamenda, P.O. Box 39, Bambili, Cameroon
| | - Ngouyamsa Nsapkain Aboubakar Sidiki
- Laboratory of Tropical and Emerging Infectious Diseases, Buea, Cameroon
- Department of Animal BiologyFaculty of ScienceUniversity of Dschang, P.O. Box 067, Dschang, Cameroon
| | - Mounvera Abdel Azizi
- Laboratory of Tropical and Emerging Infectious Diseases, Buea, Cameroon
- Department of Animal BiologyFaculty of ScienceUniversity of Dschang, P.O. Box 067, Dschang, Cameroon
| | - Vincent Khan Payne
- Laboratory of Tropical and Emerging Infectious Diseases, Buea, Cameroon
- Department of Animal BiologyFaculty of ScienceUniversity of Dschang, P.O. Box 067, Dschang, Cameroon
| | - Haibo Hu
- Laboratory of Tropical and Emerging Infectious Diseases, Buea, Cameroon
- Department of Biomedical SciencesFaculty of Health SciencesUniversity of Bamenda, P.O. Box 39, Bambili, Cameroon
- Jiangxi Province Key Laboratory of Pharmacology of Traditional Chinese MedicineNational Engineering Research Center for Modernization of Traditional Chinese Medicine-Hakka Medical Resources BranchSchool of PharmacyGannan Medical University, Ganzhou 341000, China
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19
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Coombes J, Gammon J, Nigam Y. Maggot therapy for resistant infections: the disconnect between scientific evidence, clinical acceptance and practice. J Wound Care 2024; 33:495-507. [PMID: 38967338 DOI: 10.12968/jowc.2021.0340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
OBJECTIVE Practitioners and scientists are re-examining marginalised wound care therapies to find strategies that combat the growing problem of antimicrobial resistance (AMR) without compromising patient outcomes. Maggot therapy (MT) makes up just an estimated 0.02% of UK's National Health Service spending on wound care. This study aims to uncover why MT is not used more often, despite its affordability and high level of efficacy for both debridement and disinfection, particularly in the context of AMR infections, and to determine what can be done to ensure MT is more effectively used in the future to improve patient outcomes and manage the growing problem of AMR. METHOD For this investigation, a qualitative review of case studies using MT against AMR infections and a quantitative analysis of randomised control trials (RCTs) were performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses framework. RESULTS Analysis showed that MT is highly effective against a range of infections and wound types, and compares well against conventional therapies. The low use of MT may be due in part to the documented 'yuck factor', often associated with maggots as well as misconceptions around the cost, efficacy and accessibility of MT. To overcome these factors, more RCTs on the spectrum and efficacy of MT across various clinical manifestations are needed, as well as professional and public engagement campaigns. CONCLUSION MT is an underused therapy, particularly regarding AMR infections, and expanding its use in these circumstances appears warranted. MT could play a vital role in conserving the efficacy of the existing pool of antimicrobials available and should be considered in the development of antimicrobial stewardship programmes. DECLARATION OF INTEREST This work was supported by the Swansea Employability Academy, Swansea University (internal funding). The authors have no conflicts of interest to declare.
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Affiliation(s)
- Joseph Coombes
- School of Health and Social Care, Faculty of Medicine, Health and Life Sciences, Swansea University, Wales
| | - John Gammon
- School of Health and Social Care, Faculty of Medicine, Health and Life Sciences, Swansea University, Wales
| | - Yamni Nigam
- School of Health and Social Care, Faculty of Medicine, Health and Life Sciences, Swansea University, Wales
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20
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Nie Y, Zeng Y. Clinical characteristics, risk factor analysis and peripheral blood cell changes for early warning of multidrug-resistant bacteria (MDR) infection in elderly patients. Immun Inflamm Dis 2024; 12:e1347. [PMID: 39023415 PMCID: PMC11256884 DOI: 10.1002/iid3.1347] [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: 01/03/2024] [Revised: 07/01/2024] [Accepted: 07/06/2024] [Indexed: 07/20/2024] Open
Abstract
OBJECTIVE To explore peripheral blood indicators that may serve as early indicators for multidrug-resistant bacteria (MDR) infections in this demographic, with the goal of providing reference suggestions for the clinical prevention of MDR infections in elderly inpatients. METHODS Clinical data of patients were divided into the MDR-infected group (n = 488) and the MDR-uninfected group (n = 233) according to the results of drug sensitivity experiments, risk factors for MDR infection, and peripheral blood indicators related to MDR infections were analyzed using univariate and multivariate logistic regression in conjunction with the construction of a Chi-squared automatic interaction detector (CHAID) decision tree model, considering statistical significance at p < .05. RESULTS Of 721 patients, 488 multidrug-resistant strains were identified. Among them, with Staphylococcus spp. the most prevalent in 148 strains. The most frequent detection of MDR occurred in puncture fluid samples (167 cases). Univariate and multivariate regression analyses revealed that prolonged hospitalization, use of antibiotics preadmission, duration of antibiotics, invasive procedures or recent surgery, and coexisting lung disease were independent risk factors for contracting MDR. Subsequent analysis comparing the aforementioned influences with peripheral blood cells revealed associations between the number of antibiotic treatment days and increased neutrophil-to-lymphocyte ratio (NLR), platelet count-to-lymphocyte ratio (PLR), neutrophils, decreased lymphocytes, and increased eosinophils; preadmission antibiotic use correlated with increased PLR, NLR, neutrophils, and decreased lymphocytes; and invasive manipulation or surgery correlated with increased PLR and NLR. CONCLUSIONS Elevated NLR, PLR, neutrophils, lowered lymphocytes, and eosinophils may serve as early indicators of MDR infections in elderly hospitalized patients.
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Affiliation(s)
- Yalan Nie
- Department of Respiratory Medicine, Tongji Medical College, Liyuan HospitalHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Yulan Zeng
- Department of Respiratory Medicine, Tongji Medical College, Liyuan HospitalHuazhong University of Science and TechnologyWuhanHubeiChina
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21
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Mishra A, Jena PK, Panda SK. The diagnostic performance of mean neutrophil volume in neonatal sepsis: A systematic review and meta-analysis. Pediatr Neonatol 2024:S1875-9572(24)00082-2. [PMID: 38890054 DOI: 10.1016/j.pedneo.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 01/26/2024] [Accepted: 03/12/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND There is a need for reliable diagnostic tests for early identification of sepsis to prevent neonatal mortality and antibiotic misuse. During sepsis, many immature neutrophils came into the bloodstream, altering the mean neutrophil volume (MNV) shown in the previous studies. OBJECTIVES To summarize the diagnostic performance of mean neutrophil volume (MNV) in neonatal sepsis from the published literature. METHOD Databases such as PubMed, Scopus, and Web of Science were searched from January 1990 to April 2023 for studies reporting MNV as a diagnostic test in neonatal sepsis. The pooled sensitivity, specificity, diagnostic odds ratio (DOR), and area under the curve (AUC) of the summary receiver operating characteristic (SROC) curve of MNV were estimated with reference blood culture-positive sepsis and clinical sepsis for meta-analysis. RESULT The diagnostic performance of MNV was analyzed in 1685 neonates, including 829 septic and 856 non-septic neonates, from six prospective studies. The pooled sensitivity and specificity of MNV were 0.87 and 0.75, respectively, for neonatal sepsis; the DOR was 20.01 (95% CI: 5.90-67.82); and the AUC of the SROC for MNV was 0.81 (95% CI: 0.69-0.88). Higgins I2 was 92.1% (95% CI: 85.5%-95.7%). The diagnostic performance of MNV was better during sub-group analysis of studies reporting culture-positive sepsis (DOR 85.61). CONCLUSION The diagnostic performance of MNV is moderate for neonatal sepsis. As the evidence originated from a small number of studies with marked heterogeneity, further large-scale diagnostic accuracy studies are recommended to resolve heterogeneity in the future.
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Affiliation(s)
- Alpana Mishra
- Department of Community Medicine, Kalinga Institute of Medical Sciences, KIIT DU, Bhubaneswar, Odisha, India
| | | | - Santosh Kumar Panda
- Department of Paediatrics, Kalinga Institute of Medical Sciences, KIIT DU Bhubaneswar, Odisha, India.
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22
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Jia Y, Zhang L, Xu J, Xiang L. Recent advances in cell membrane camouflaged nanotherapeutics for the treatment of bacterial infection. Biomed Mater 2024; 19:042006. [PMID: 38697197 DOI: 10.1088/1748-605x/ad46d4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 05/01/2024] [Indexed: 05/04/2024]
Abstract
Infectious diseases caused by bacterial infections are common in clinical practice. Cell membrane coating nanotechnology represents a pioneering approach for the delivery of therapeutic agents without being cleared by the immune system in the meantime. And the mechanism of infection treatment should be divided into two parts: suppression of pathogenic bacteria and suppression of excessive immune response. The membrane-coated nanoparticles exert anti-bacterial function by neutralizing exotoxins and endotoxins, and some other bacterial proteins. Inflammation, the second procedure of bacterial infection, can also be suppressed through targeting the inflamed site, neutralization of toxins, and the suppression of pro-inflammatory cytokines. And platelet membrane can affect the complement process to suppress inflammation. Membrane-coated nanoparticles treat bacterial infections through the combined action of membranes and nanoparticles, and diagnose by imaging, forming a theranostic system. Several strategies have been discovered to enhance the anti-bacterial/anti-inflammatory capability, such as synthesizing the material through electroporation, pretreating with the corresponding pathogen, membrane hybridization, or incorporating with genetic modification, lipid insertion, and click chemistry. Here we aim to provide a comprehensive overview of the current knowledge regarding the application of membrane-coated nanoparticles in preventing bacterial infections as well as addressing existing uncertainties and misconceptions.
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Affiliation(s)
- Yinan Jia
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Li Zhang
- Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Junhua Xu
- Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Lin Xiang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China
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23
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You T, Shi K. Monitoring of antimicrobial resistance in respiratory tract pathogens during the COVID-19 pandemic: A retrospective study. Medicine (Baltimore) 2024; 103:e38101. [PMID: 38728506 PMCID: PMC11081541 DOI: 10.1097/md.0000000000038101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/11/2024] [Indexed: 05/12/2024] Open
Abstract
To understand the distribution and antimicrobial resistance (AMR) of pathogens in respiratory samples in Changle District People's Hospital in Fujian Province in recent years, and provide empirical guidance for infection control and clinical treatment in the region. A retrospective analysis was conducted on 5137 isolates of pathogens from respiratory samples collected from 2019 to 2022. The AMR patterns were systematically analyzed. For research purposes, the data was accessed on October 12, 2023. A total of 3517 isolates were included in the study, including 811 (23.06%) gram-positive bacteria and 2706 (76.94%) gram-negative bacteria. The top 3 gram-positive bacteria were Staphylococcus aureus with 455 isolates (12.94%), Streptococcus pneumoniae with 99 isolates (2.81%), and Staphylococcus hemolytic with 99 isolates (2.81%). The top 3 gram-negative bacteria were Klebsiella pneumoniae with 815 isolates (23.17%), Pseudomonas aeruginosa with 589 isolates (16.75%), and Acinetobacter baumannii with 328 isolates (9.33%). The proportion of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli and K pneumoniae fluctuated between 41.9% and 70.5%, and 18.6% and 20.9%, respectively. The resistance rates of E coli, K pneumoniae, P aeruginosa, and A baumannii to carbapenems were 2.36%, 8.9%, 18.5%, and 19.6%, respectively. The prevalence of methicillin-resistant S aureus (MRSA) was 48.55%, but it decreased to 38.4% by 2022. The resistance rate of Staphylococcus haemolyticus to methicillin was 100%, and 1 case of vancomycin-resistant strain was detected. K pneumoniae, P aeruginosa, A baumannii, and S aureus are the main pathogens in respiratory samples. Although the resistance rates of some multidrug-resistant strains have decreased, ESBL-producing Enterobacteriaceae, carbapenem-resistant bacteria have still increased. Therefore, it is necessary to strengthen the monitoring of pathogen resistance, promote rational use of antibiotics, and promptly report findings.
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Affiliation(s)
- Tongdeng You
- Department of Clinical Laboratory, Fuzhou Changle District People’s Hospital, Fujian Province, China
| | - Ke Shi
- Department of Clinical Laboratory, Fuzhou Changle District People’s Hospital, Fujian Province, China
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24
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Alabssawy AN, Abu-Elghait M, Azab AM, Khalaf-Allah HMM, Ashry AS, Ali AOM, Sabra ABAA, Salem SS. Hindering the biofilm of microbial pathogens and cancer cell lines development using silver nanoparticles synthesized by epidermal mucus proteins from Clarias gariepinus. BMC Biotechnol 2024; 24:28. [PMID: 38702622 PMCID: PMC11069147 DOI: 10.1186/s12896-024-00852-7] [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: 11/15/2023] [Accepted: 04/18/2024] [Indexed: 05/06/2024] Open
Abstract
Scientists know very little about the mechanisms underlying fish skin mucus, despite the fact that it is a component of the immune system. Fish skin mucus is an important component of defence against invasive infections. Recently, Fish skin and its mucus are gaining interest among immunologists. Characterization was done on the obtained silver nanoparticles Ag combined with Clarias gariepinus catfish epidermal mucus proteins (EMP-Ag-NPs) through UV-vis, FTIR, XRD, TEM, and SEM. Ag-NPs ranged in size from 4 to 20 nm, spherical in form and the angles were 38.10°, 44.20°, 64.40°, and 77.20°, Where wavelength change after formation of EMP-Ag-NPs as indicate of dark brown, the broad band recorded at wavelength at 391 nm. Additionally, the antimicrobial, antibiofilm and anticancer activities of EMP-Ag-NPs was assessed. The present results demonstrate high activity against unicellular fungi C. albicans, followed by E. faecalis. Antibiofilm results showed strong activity against both S. aureus and P. aeruginosa pathogens in a dose-dependent manner, without affecting planktonic cell growth. Also, cytotoxicity effect was investigated against normal cells (Vero), breast cancer cells (Mcf7) and hepatic carcinoma (HepG2) cell lines at concentrations (200-6.25 µg/mL) and current results showed highly anticancer effect of Ag-NPs at concentrations 100, 5 and 25 µg/mL exhibited rounding, shrinkage, deformation and granulation of Mcf7 and HepG2 with IC50 19.34 and 31.16 µg/mL respectively while Vero cells appeared rounded at concentration 50 µg/mL and normal shape at concentration 25, 12.5 and 6.25 µg/ml with IC50 35.85 µg/mL. This study evidence the potential efficacy of biologically generated Ag-NPs as a substitute medicinal agent against harmful microorganisms. Furthermore, it highlights their inhibitory effect on cancer cell lines.
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Affiliation(s)
- Ahmed N Alabssawy
- Zoology Department, Marine Science and Fishes Branch, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Mohammed Abu-Elghait
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Ahmad M Azab
- Zoology Department, Marine Science and Fishes Branch, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Hassan M M Khalaf-Allah
- Zoology Department, Marine Science and Fishes Branch, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Abdelrahman S Ashry
- Zoology Department, Marine Science and Fishes Branch, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Ahmed O M Ali
- Zoology Department, Marine Science and Fishes Branch, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Abu-Bakr A A Sabra
- Zoology Department, Marine Science and Fishes Branch, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Salem S Salem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt.
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Ahmady L, Gothwal M, Mukkoli MM, Bari VK. Antifungal drug resistance in Candida: a special emphasis on amphotericin B. APMIS 2024; 132:291-316. [PMID: 38465406 DOI: 10.1111/apm.13389] [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: 06/16/2023] [Accepted: 02/12/2024] [Indexed: 03/12/2024]
Abstract
Invasive fungal infections in humans caused by several Candida species, increased considerably in immunocompromised or critically ill patients, resulting in substantial morbidity and mortality. Candida albicans is the most prevalent species, although the frequency of these organisms varies greatly according to geographic region. Infections with C. albicans and non-albicans Candida species have become more common, especially in the past 20 years, as a result of aging, immunosuppressive medication use, endocrine disorders, malnourishment, extended use of medical equipment, and an increase in immunogenic diseases. Despite C. albicans being the species most frequently associated with human infections, C. glabrata, C. parapsilosis, C. tropicalis, and C. krusei also have been identified. Several antifungal drugs with different modes of action are approved for use in clinical settings to treat fungal infections. However, due to the common eukaryotic structure of humans and fungi, only a limited number of antifungal drugs are available for therapeutic use. Furthermore, drug resistance in Candida species has emerged as a result of the growing use of currently available antifungal drugs against fungal infections. Amphotericin B (AmB), a polyene class of antifungal drugs, is mainly used for the treatment of serious systemic fungal infections. AmB interacts with fungal plasma membrane ergosterol, triggering cellular ion leakage via pore formation, or extracting the ergosterol from the plasma membrane inducing cellular death. AmB resistance is primarily caused by changes in the content or structure of ergosterol. This review summarizes the antifungal drug resistance exhibited by Candida species, with a special focus on AmB.
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Affiliation(s)
- Lailema Ahmady
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
| | - Manisha Gothwal
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
| | | | - Vinay Kumar Bari
- Department of Biochemistry, School of Basic Sciences, Central University of Punjab, Bathinda, India
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Yihunie FB, Belete MA, Fentahun G, Dubie T. Molecular detection and antibiogram of Shiga toxin-producing Escherichia coli (STEC) from raw milk in and around Bahir Dar town dairy farms, Ethiopia. Heliyon 2024; 10:e28839. [PMID: 38601628 PMCID: PMC11004750 DOI: 10.1016/j.heliyon.2024.e28839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 03/16/2024] [Accepted: 03/26/2024] [Indexed: 04/12/2024] Open
Abstract
Illnesses associated with consuming infected milk and milk products are a widespread problem in low and middle-income countries. Shiga toxin-producing Escherichia coli (STEC) is a bacterium commonly found in raw milk and causes foodborne diseases ranging from mild diarrhea to severe hemorrhagic colitis and hemolytic uremic syndrome. This study aimed to investigate the virulence gene and antimicrobial resistance profiles of Shiga toxin-producing E. coli strains isolated from raw milk in dairy farms in and around Bahir Dar town. Raw milk samples (n = 128) collected from December 2021 to July 2022 were cultured, and E. coli strains were isolated using standard methods. Shiga toxin-producing E. coli strains were identified genotypically by the presence of the virulence markers using a single-plex polymerase chain reaction. The antibiotic susceptibility testing of Shiga toxin-producing E. coli isolates was done by the agar disk diffusion method. In total, 32 E. coli isolates were recovered from milk samples from lactating animals. PCR screening of these isolates resulted in 19 (59.3%) positives for Shiga toxin-producing E. coli. The stx2 gene was detected in 53% of cases, followed by stx1 (31%) and eae (16%. The STEC isolates were highly sensitive to ciprofloxacin (94.7%) and kanamycin (89.5%), while exhibiting significant resistance to amoxicillin (89.5%) and streptomycin (73.7%). The present study points out the occurrence of virulent and antibiotic-resistant Shiga toxin-producing E. coli strains in raw milk that could pose a potential risk to public health. Further analysis by whole genome sequencing is necessary for an in-depth assessment and understanding of their virulence and resistance factors. Moreover, large-scale studies are needed to identify the prevalence and potential risk factors and to prevent the spread of antibiotic-resistant STEC strains in the milk production chain.
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Affiliation(s)
| | - Mequanint Addisu Belete
- Department of Veterinary Laboratory Technology, College of Agriculture and Natural Resource, Debre Markos University, Debre Markos, Ethiopia
- Institute of Biotechnology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Gizachew Fentahun
- College of Veterinary Medicine and Animal Science, Samara University, Semera, Ethiopia
| | - Teshager Dubie
- College of Veterinary Medicine and Animal Science, Samara University, Semera, Ethiopia
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Liu J, Cabral H, Mi P. Nanocarriers address intracellular barriers for efficient drug delivery, overcoming drug resistance, subcellular targeting and controlled release. Adv Drug Deliv Rev 2024; 207:115239. [PMID: 38437916 DOI: 10.1016/j.addr.2024.115239] [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: 11/22/2023] [Revised: 01/16/2024] [Accepted: 02/27/2024] [Indexed: 03/06/2024]
Abstract
The cellular barriers are major bottlenecks for bioactive compounds entering into cells to accomplish their biological functions, which limits their biomedical applications. Nanocarriers have demonstrated high potential and benefits for encapsulating bioactive compounds and efficiently delivering them into target cells by overcoming a cascade of intracellular barriers to achieve desirable therapeutic and diagnostic effects. In this review, we introduce the cellular barriers ahead of drug delivery and nanocarriers, as well as summarize recent advances and strategies of nanocarriers for increasing internalization with cells, promoting intracellular trafficking, overcoming drug resistance, targeting subcellular locations and controlled drug release. Lastly, the future perspectives of nanocarriers for intracellular drug delivery are discussed, which mainly focus on potential challenges and future directions. Our review presents an overview of intracellular drug delivery by nanocarriers, which may encourage the future development of nanocarriers for efficient and precision drug delivery into a wide range of cells and subcellular targets.
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Affiliation(s)
- Jing Liu
- Department of Radiology, Huaxi MR Research Center (HMRRC), State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Peng Mi
- Department of Radiology, Huaxi MR Research Center (HMRRC), State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, No.17 South Renmin Road, Chengdu, Sichuan 610041, China.
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28
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Mamangkey J, Mendes LW, Mustopa AZ, Hartanto A. Endophytic Aspergillii and Penicillii from medicinal plants: a focus on antimicrobial and multidrug resistant pathogens inhibitory activity. BIOTECHNOLOGIA 2024; 105:83-95. [PMID: 38633888 PMCID: PMC11020150 DOI: 10.5114/bta.2024.135644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 11/07/2023] [Accepted: 11/17/2023] [Indexed: 04/19/2024] Open
Abstract
The rise of multidrug resistance among microorganisms, where they develop resistance against formerly efficacious drugs, has led to increased disease prevalence and mortality rates, posing a growing challenge. Globally, antibiotic resistance has made a significant impact, causing millions of fatalities each year. Endophytic fungi have gained considerable attention in research due to their potential to produce a wide variety of secondary metabolites, including natural substances with antimicrobial capabilities. The genera Aspergillus and Penicillium stand out as the most prevalent species of endophytic fungi. Filamentous fungi, such as these are responsible for the production of 45% of known microbial metabolites. This review focuses on exploring the bioactive substances produced by endophytic fungi from these two genera, particularly in conjunction with medicinal plants. Emphasis is placed on their antimicrobial activity and their ability to inhibit multidrug-resistant pathogens. As the need for alternative treatments to combat drug-resistant infections continues to grow, endophytic fungi have the potential to provide a valuable source of bioactive molecules for medical applications.
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Affiliation(s)
- Jendri Mamangkey
- Department of Biology Education, Faculty of Education and Teacher Training, Universitas Kristen Indonesia, Jakarta, Indonesia
- Research Center for Genetic Engineering, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), KST Soekarno, Cibinong, Bogor, Indonesia
| | - Lucas William Mendes
- Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture (CENA), University of São Paulo, Piracicaba, São Paulo, Brazil
| | - Apon Zaenal Mustopa
- Research Center for Genetic Engineering, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), KST Soekarno, Cibinong, Bogor, Indonesia
| | - Adrian Hartanto
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan, Indonesia
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Sreelakshmi KP, Madhuri M, Swetha R, Rangarajan V, Roy U. Microbial lipopeptides: their pharmaceutical and biotechnological potential, applications, and way forward. World J Microbiol Biotechnol 2024; 40:135. [PMID: 38489053 DOI: 10.1007/s11274-024-03908-0] [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: 11/27/2023] [Accepted: 01/24/2024] [Indexed: 03/17/2024]
Abstract
As lead molecules, cyclic lipopeptides with antibacterial, antifungal, and antiviral properties have garnered a lot of attention in recent years. Because of their potential, cyclic lipopeptides have earned recognition as a significant class of antimicrobial compounds with applications in pharmacology and biotechnology. These lipopeptides, often with biosurfactant properties, are amphiphilic, consisting of a hydrophilic moiety, like a carboxyl group, peptide backbone, or carbohydrates, and a hydrophobic moiety, mostly a fatty acid. Besides, several lipopeptides also have cationic groups that play an important role in biological activities. Antimicrobial lipopeptides can be considered as possible substitutes for antibiotics that are conventional to address the current drug-resistant issues as pharmaceutical industries modify the parent antibiotic molecules to render them more effective against antibiotic-resistant bacteria and fungi, leading to the development of more resistant microbial strains. Bacillus species produce lipopeptides, which are secondary metabolites that are amphiphilic and are typically synthesized by non-ribosomal peptide synthetases (NRPSs). They have been identified as potential biocontrol agents as they exhibit a broad spectrum of antimicrobial activity. A further benefit of lipopeptides is that they can be produced and purified biotechnologically or biochemically in a sustainable manner using readily available, affordable, renewable sources without harming the environment. In this review, we discuss the biochemical and functional characterization of antifungal lipopeptides, as well as their various modes of action, method of production and purification (in brief), and potential applications as novel antibiotic agents.
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Affiliation(s)
- K P Sreelakshmi
- Department of Biological Sciences, Birla Institute of Technology and Science-KK Birla Goa Campus Goa, NH 17 B Bypass Rd., Goa, 403726, India
| | - M Madhuri
- Department of Biological Sciences, Birla Institute of Technology and Science-KK Birla Goa Campus Goa, NH 17 B Bypass Rd., Goa, 403726, India
| | - R Swetha
- Department of Biological Sciences, Birla Institute of Technology and Science-KK Birla Goa Campus Goa, NH 17 B Bypass Rd., Goa, 403726, India
| | - Vivek Rangarajan
- Department of Chemical Engineering, Birla Institute of Technology and Science-KK Birla Goa Campus Goa, NH 17 B Bypass Rd., Goa, 403726, India
| | - Utpal Roy
- Department of Biological Sciences, Birla Institute of Technology and Science-KK Birla Goa Campus Goa, NH 17 B Bypass Rd., Goa, 403726, India.
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Shalini K, Guleria S, Salaria D, Rolta R, Fadare OA, Mehta J, Awofisayo O, Mandyal P, Shandilya P, Kaushik N, Choi EH, Chandel SR, Kaushik NK. Antimicrobial potential of phytocompounds of Acorus calamus: in silico approach. J Biomol Struct Dyn 2024; 42:2726-2737. [PMID: 37177811 DOI: 10.1080/07391102.2023.2209653] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 04/19/2023] [Indexed: 05/15/2023]
Abstract
Medicinal plants are used from prehistoric time to cure various life-threatening bacterial diseases. Acorus calamus is an important medicinal plant widely used to cure gastrointestinal, respiratory, kidney and liver disorders. The objective of the current research was to investigate the interaction of major phytoconstituents of Acorus calamus with bacterial (6VJE) and fungal (1EA1) protein targets. Protein-ligand interactions were estimated using the AutoDock software, drug likeness was predicted by using the molinspiration server and toxicity was predicted with the swissADME and protox II servers. MD simulation of phytocompounds with the best profiles was done on the GROMACS software for 100 ns. Molecular docking results showed among all the selected major phytoconstituents, that β-cadinene showed best binding interaction in complex with bacterial (6VJE) and fungal (1EA1) protein targets with binding energy -7.66 ± 0.1 and -7.73 ± 0.15 kcal mol-1, respectively. Drug likeness and toxicity predictions showed that β-cadinene follows all rules of drug likeness and toxicity. MD simulation study revealed that β-cadinene fit in binding pocket of bacterial and fungal targets and found to be stable throughout the duration of the simulation. Based on the observations from this in-silico study it is being proposed that β-cadinene, a major phytocompound of Acorus calamus, can be considered for the treatment of bacterial and fungal infections since the study shows that it might be one of the compounds that contributes majorly to the plant's biological activity. This study needs in vitro and in vivo validation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Kumari Shalini
- Division of Microbiology, School of Pharmaceutical and Health Sciences, Career Point University, Hamirpur, India
| | - Shikha Guleria
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Solan, India
| | - Deeksha Salaria
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajan Rolta
- Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Olatomide A Fadare
- Organic Chemistry Research Lab, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Jyoti Mehta
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Solan, India
| | - Oladoja Awofisayo
- Department of Pharmaceutical and Medical Chemistry, University of Uyo, Uyo, Nigeria
| | - Parteek Mandyal
- School Advanced of Chemical Sciences, Shoolini University, Solan, India
| | - Pooja Shandilya
- School Advanced of Chemical Sciences, Shoolini University, Solan, India
| | - Neha Kaushik
- Department of Biotechnology, College of Engineering, The University of Suwon, Hwaseong-si, Republic of Korea
| | - Eun Ha Choi
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Republic of Korea
| | - Shikha Rangra Chandel
- Division of Microbiology, School of Pharmaceutical and Health Sciences, Career Point University, Hamirpur, India
| | - Nagendra Kumar Kaushik
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul, Republic of Korea
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Elnaggar MS, Fayez S, Anwar A, Ebada SS. Cytotoxic naphtho- and benzofurans from an endophytic fungus Epicoccum nigrum Ann-B-2 associated with Annona squamosa fruits. Sci Rep 2024; 14:4940. [PMID: 38418706 PMCID: PMC10901772 DOI: 10.1038/s41598-024-55168-5] [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: 11/11/2023] [Accepted: 02/21/2024] [Indexed: 03/02/2024] Open
Abstract
Chemical exploration of the total extract derived from Epicoccum nigrum Ann-B-2, an endophyte associated with Annona squamosa fruits, afforded two new metabolites, epicoccofuran A (1) and flavimycin C (2), along with four known compounds namely, epicocconigrone A (3), epicoccolide B (4), epicoccone (5) and 4,5,6-trihydroxy-7-methyl-1,3-dihydroisobenzofuran (6). Structures of the isolated compounds were elucidated using extensive 1D and 2D NMR along with HR-ESI-MS. Flavimycin C (2) was isolated as an epimeric mixture of its two diastereomers 2a and 2b. The new compounds 1 and 2 displayed moderate activity against B. subtilis, whereas compounds (2, 3, 5, and 6) showed significant antiproliferative effects against a panel of seven different cancer cell lines with IC50 values ranging from 1.3 to 12 µM.
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Affiliation(s)
- Mohamed S Elnaggar
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt.
| | - Shaimaa Fayez
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt.
| | - Alaa Anwar
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Sherif S Ebada
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt.
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Geremew A, Gonzalles J, Peace E, Woldesenbet S, Reeves S, Brooks N, Carson L. Green Synthesis of Novel Silver Nanoparticles Using Salvia blepharophylla and Salvia greggii: Antioxidant and Antidiabetic Potential and Effect on Foodborne Bacterial Pathogens. Int J Mol Sci 2024; 25:904. [PMID: 38255978 PMCID: PMC10815671 DOI: 10.3390/ijms25020904] [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: 12/20/2023] [Revised: 01/03/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
In the face of evolving healthcare challenges, the utilization of silver nanoparticles (AgNPs) has emerged as a compelling solution due to their unique properties and versatile applications. The aim of this study was the synthesis and characterization of novel AgNPs (SB-AgNPs and SG-AgNPs, respectively) using Salvia blepharophylla and Salvia greggii leaf extracts and the evaluation of their antimicrobial, antioxidant, and antidiabetic activities. Several analytical instrumental techniques were utilized for the characterization of SB-AgNPs and SG-AgNPs, including UV-visible (UV-Vis) spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS), Fourier transmission infrared (FT-IR) spectroscopy, energy-dispersive X-ray analysis (EDX), and X-ray diffraction (XRD). FTIR analysis identified various functional groups in the leaf extracts and nanoparticles, suggesting the involvement of phytochemicals as reducing and stabilizing agents. High-resolution TEM images displayed predominantly spherical nanoparticles with average sizes of 52.4 nm for SB-AgNPs and 62.5 nm for SG-AgNPs. Both SB-AgNPs and SG-AgNPs demonstrated remarkable antimicrobial activity against Gram-positive bacteria Staphylococcus aureus and Listeria monocytogenes and Gram-negative bacteria Salmonella typhimurium and Escherichia coli. SB-AgNPs and SG-AgNPs also exhibited 90.2 ± 1.34% and 89.5 ± 1.5% DPPH scavenging and 86.5 ± 1.7% and 80.5 ± 1.2% α-amylase inhibition, respectively, at a concentration of 100 μg mL-1. Overall, AgNPs synthesized using S. blepharophylla and Salvia greggii leaf extracts may serve as potential candidates for antibacterial, antioxidant, and antidiabetic agents. Consequently, this study provides viable solutions to mitigate the current crisis of antibiotic resistance and to efficiently combat antimicrobial infections and Type 2 diabetes.
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Affiliation(s)
- Addisie Geremew
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
| | - John Gonzalles
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
| | - Elisha Peace
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
| | - Selamawit Woldesenbet
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
| | - Sheena Reeves
- Department of Chemical Engineering, College of Engineering, Prairie View A&M University, Prairie View, TX 77446, USA; (S.R.); (N.B.J.)
| | - Nigel Brooks
- Department of Chemical Engineering, College of Engineering, Prairie View A&M University, Prairie View, TX 77446, USA; (S.R.); (N.B.J.)
| | - Laura Carson
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
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Koosehlar E, Mohabatkar H, Behbahani M. In Silico and In vitro Evaluations of the Antibacterial Activities of HIV-1 Nef Peptides against Pseudomonas aeruginosa. INTERNATIONAL JOURNAL OF MOLECULAR AND CELLULAR MEDICINE 2024; 13:46-63. [PMID: 39156869 PMCID: PMC11329932 DOI: 10.22088/ijmcm.bums.13.1.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 08/20/2024]
Abstract
One of the burning issues facing healthcare organizations is multidrug-resistant (MDR) bacteria. P. aeruginosa is an MDR opportunistic bacterium responsible for nosocomial and fatal infections in immunosuppressed individuals. According to previous studies, efflux pump activity and biofilm formation are the most common resistance mechanisms in P. aeruginosa. The aim of this study was to propose new antimicrobial peptides (AMPs) that target P. aeruginosa and can effectively address these resistance mechanisms through in silico and in vitro assessments. Since AMPs are an attractive alternative to antibiotics, in vitro experiments were carried out along with bioinformatics analyses on 19 Nef peptides (derived from the HIV-1 Nef protein) in the current study. Several servers, including Dbaasps, Antibp2, CLASSAMP2, ToxinPred, dPABBs and ProtParam were used to predict Nef peptides as AMPs. To evaluate the binding affinities, a molecular docking analysis was performed with the HADDOCK web server for all Nef peptide models against two effective proteins of P. aeruginosa (MexB and PqsR) that play a role in efflux and quorum sensing. Moreover, the antibacterial and antibiofilm activity of the Nef peptides was investigated in a resistant strain of P. aeruginosa. The results of molecular docking revealed that all Nef peptides have a significant binding affinity to the abovementioned proteins. Nef-Peptide-19 has the highest affinity to the active sites of MexB and PqsR with the HADDOCK scores of -136.1 ± 1.7 and -129.4 ± 2, respectively. According to the results of in vitro evaluation, Nef peptide 19 showed remarked activity against P. aeruginosa with minimum inhibitory and bactericidal concen-trations (MIC and MBC) of 10 µM and 20 µM, respectively. In addition, biofilm inhibitory activity was observed at a concentration of 20 µM. Finally, Nef peptide 19 is proposed as a new AMP against P. aeruginosa.
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Affiliation(s)
| | | | - Mandana Behbahani
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan 81746-73441, Iran.
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Masadeh MM, Al-Tal Z, Khanfar MS, Alzoubi KH, Sabi SH, Masadeh MM. Synergistic Effect of Silver Nanoparticles with Antibiotics for Eradication of Pathogenic Biofilms. Curr Pharm Biotechnol 2024; 25:1884-1903. [PMID: 38231054 DOI: 10.2174/0113892010279217240102100405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/16/2023] [Accepted: 12/22/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND The increase in nosocomial multidrug resistance and biofilm-forming bacterial infections led to the search for new alternative antimicrobial strategies other than traditional antibiotics. Silver nanoparticles (AgNP) could be a viable treatment due to their wide range of functions, rapid lethality, and minimal resistance potential. The primary aim of this study is to prepare silver nanoparticles and explore their antibacterial activity against biofilms. METHODS AgNPs with specific physicochemical properties such as size, shape, and surface chemistry were prepared using a chemical reduction technique, and then characterized by DLS, SEM, and FTIR. The activity of AgNPs was tested alone and in combination with some antibiotics against MDR Gram-negative and Gram-positive planktonic bacterial cells and their biofilms. Finally, mammalian cell cytotoxicity and hemolytic activity were tested using VERO and human erythrocytes. RESULTS The findings of this study illustrate the success of the chemical reduction method in preparing AgNPs. Results showed that AgNPs have MIC values against planktonic organisms ranging from 0.0625 to 0.125 mg/mL, with the greatest potency against gram-negative bacteria. It also effectively destroyed biofilm-forming cells, with minimal biofilm eradication concentrations (MBEC) ranging from 0.125 to 0.25 mg/ml. AgNPs also had lower toxicity profiles for the MTT test when compared to hemolysis to erythrocytes. Synergistic effect was found between AgNPs and certain antibiotics, where the MIC was dramatically reduced, down to less than 0.00195 mg/ml in some cases. CONCLUSION The present findings encourage the development of alternative therapies with high efficacy and low toxicity.
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Affiliation(s)
- Majed M Masadeh
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Zeinab Al-Tal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Mai S Khanfar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Karem H Alzoubi
- Department of Pharmacy Practice and Pharmacotherapeutics, University of Sharjah, Sharjah, UAE
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Salsabeel H Sabi
- Department of Biological Sciences, Faculty of Science, The Hashemite University, Zarqa 13110, Jordan
| | - Majd M Masadeh
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, 22110, Jordan
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35
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Boroujeni MB, Mohebi S, Malekian A, Shahraeini SS, Gharagheizi Z, Shahkolahi S, Sadeghi RV, Naderifar M, Akbarizadeh MR, Soltaninejad S, Moghadam ZT, Moghadam MT, Mirzadeh F. The therapeutic effect of engineered phage, derived protein and enzymes against superbug bacteria. Biotechnol Bioeng 2024; 121:82-99. [PMID: 37881139 DOI: 10.1002/bit.28581] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/18/2023] [Accepted: 10/15/2023] [Indexed: 10/27/2023]
Abstract
Defending against antibiotic-resistant infections is similar to fighting a war with limited ammunition. As the new century unfolded, antibiotic resistance became a significant concern. In spite of the fact that phage treatment has been used as an effective means of fighting infections for more than a century, researchers have had to overcome many challenges of superbug bacteria by manipulating phages and producing engineered enzymes. New enzymes and phages with enhanced properties have a significant impact on the ability to fight antibiotic-resistant infections, which is considered a window of hope for the future. This review, therefore, illustrates not only the challenges caused by antibiotic resistance and superbug bacteria but also the engineered enzymes and phages that are being developed to solve these issues. Our study found that engineered phages, phage proteins, and enzymes can be effective in treating superbug bacteria and destroying the biofilm caused by them. Combining these engineered compounds with other antimicrobial substances can increase their effectiveness against antibiotic-resistant bacteria. Therefore, engineered phages, proteins, and enzymes can be used as a substitute for antibiotics or in combination with antibiotics to treat patients with superbug infections in the future.
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Affiliation(s)
| | - Samane Mohebi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Azam Malekian
- Department of Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Seyed Sadegh Shahraeini
- Department of Medical Biotechnology, Drug Design and Bioinformatics Unit, Biotechnology Research Centre, Pasteur Institute of Iran, Tehran, Iran
| | - Zahra Gharagheizi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shaghayegh Shahkolahi
- Department of Microbiology, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Rezvaneh Vahedian Sadeghi
- Department of Microbiology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahin Naderifar
- School of Nursing & Midwifery, Zabol University of Medical Sciences, Zabol, Iran
| | | | | | - Zahra Taati Moghadam
- School of Nursing and Midwifery, Guilan University of Medical Sciences, Rasht, Iran
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Kaushik A, Kaushik M, Kaur G, Gupta V. Perspective of Secondary Metabolites in Respect of Multidrug Resistance (MDR): A Review. Infect Disord Drug Targets 2024; 24:40-52. [PMID: 38031773 DOI: 10.2174/0118715265210606231113105225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 10/07/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
Aberrant and haphazard use of antibiotics has created the development of antimicrobial resistance which is a bizarre challenge for human civilization. This emerging crisis of antibiotic resistance for microbial pathogens is alarming all the nations posing a global threat to human health. It is difficult to treat bacterial infections as they develop resistance to all antimicrobial resistance. Currently used antibacterial agents inhibit a variety of essential metabolic pathways in bacteria, including macro-molecular synthesis (MMS) pathways (e.g. protein, DNA, RNA, cell wall) most often by targeting a specific enzyme or subcellular component e.g. DNA gyrase, RNA polymerase, ribosomes, transpeptidase. Despite the availability of diverse synthetic molecules, there are still many complications in managing progressive and severe antimicrobial resistance. Currently not even a single antimicrobial agent is available for which the microbes do not show resistance. Thus, the lack of efficient drug molecules for combating microbial resistance requires continuous research efforts to overcome the problem of multidrug-resistant bacteria. The phytochemicals from various plants have the potential to combat the microbial resistance produced by bacteria, fungi, protozoa and viruses without producing any side effects. This review is a concerted effort to identify some of the major active phytoconstituents from various medicinal plants which might have the potential to be used as an alternative and effective strategy to fight against microbial resistance and can promote research for the treatment of MDR.
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Affiliation(s)
- Aditi Kaushik
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar, Punjab, India
| | - Manish Kaushik
- KC Group of Institutions, UNA, H.P, MMDU, Mullana, Ambala, Haryana, India
| | - Gagandeep Kaur
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | - Vrinda Gupta
- Chitkara Group of Institutions, Chitkara University, Chandigarh, India
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37
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Salawudeen A, Raji YE, Jibo GG, Desa MNM, Neoh HM, Masri SN, Di Gregorio S, Jamaluddin TZMT. Epidemiology of multidrug-resistant Klebsiella pneumoniae infection in clinical setting in South-Eastern Asia: a systematic review and meta-analysis. Antimicrob Resist Infect Control 2023; 12:142. [PMID: 38062531 PMCID: PMC10704709 DOI: 10.1186/s13756-023-01346-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 11/26/2023] [Indexed: 12/18/2023] Open
Abstract
The rising prevalence of multidrug-resistant (MDR) and extended-spectrum beta lactamase-resistant (ESBL) Klebsiella pneumoniae (K. pneumoniae) is an important global public health challenge. This threat is even more pertinent in clinical settings. Morbidity and mortality associated with this condition are alarming particularly in the developing regions of the world. A comprehensive evaluation of the epidemiology of this phenomenon will assist towards the global effort of reducing its burden. So, this systematic review and meta-analysis was conducted to evaluate the epidemiology of MDR K. pneumoniae in South-Eastern Asia (SEA). The study was done under the PRISMA guidelines and was preceded by the development of a priori protocol. The protocol was then registered in PROSPERO-the public registry for systematic reviews. Seven important outcomes which include the assessment of the overall MDR K. pneumoniae prevalence were designed to be evaluated. A literature search was carried out in five selected electronic databases and 4389 were screened. Of these articles, 21 studies that met the eligibility criteria were included in the review. Relevant data were extracted from the included studies. By conducting a quality effect meta-analysis, the pooled prevalence for MDR and ESBL K. pneumoniae in SEA was estimated at 55% (CI 9-96) and 27% (CI 32-100) respectively. The review also identified ESBL genes types of allodemic situations occurring mostly in respiratory tract infections. The high prevalence of MDR and ESBL K. pneumoniae in this subregion is highly significant and of both public health and clinical relevance. Overall, the findings of this review will assist in the effective prevention and control of this threat in SEA.
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Affiliation(s)
- Adamu Salawudeen
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
- Department of Microbiology, Faculty of Science, Gombe State University, Tudun Wada, Gombe, 760214, Gombe State, Nigeria
| | - Yakubu Egigogo Raji
- Department of Pathology, Clinical Microbiology Unit, College of Health Sciences, Ibrahim Badamasi Babangida University Lapai, Lapai, 911101, Nigeria
| | - Garba Gidandawa Jibo
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
- Department of Microbiology, Faculty of Life Sciences, Kebbi State University of Science and Technology, Aliero, 863104, Nigeria
| | - Mohd Nasir Mohd Desa
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Hui-Min Neoh
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Ya'acob Latiff, Bandar Tun Razak, 56000, Kuala Lumpur, Malaysia
| | - Siti Norbaya Masri
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
- Department of Medical Microbiology, Hospital Sultan Abdul Aziz Shah, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Sabrina Di Gregorio
- Instituto de Investigaciones en Bacteriologia y Virologia Molecular (IBaViM), Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Postal Code 1113, Buenos Aires, Argentina
- CONICET, National Scientific and Technical Research Council - Argentina, Postal Code 1425, Buenos Aires, Argentina
| | - Tengku Zetty Maztura Tengku Jamaluddin
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia.
- Infection Control Unit, Department of Medical Microbiology, Hospital Sultan Abdul Aziz Shah, Universiti Putra Malaysia, 43400, Serdang, Malaysia.
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38
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Fatima T, Fatima Z, Hameed S. Abrogation of efflux pump activity, biofilm formation, and immune escape by candidacidal geraniol in emerging superbug, Candida auris. Int Microbiol 2023; 26:881-891. [PMID: 36847907 DOI: 10.1007/s10123-023-00343-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 02/07/2023] [Accepted: 02/16/2023] [Indexed: 03/01/2023]
Abstract
During the last decade, Candida auris emerged as a threatening human fungal pathogen that notably caused outbreaks around the globe with high mortality. Considering C. auris species as newly discovered fungi, the evolutionary features remain elusive. The antifungal resistance which is a norm in C. auris underlines the need for innovative therapeutic options. ATP Binding Cassette (ABC) superfamily efflux pumps overexpression and biofilms are known to be major contributors to multidrug resistance (MDR) in C. auris. Therefore, herein, we investigated the antifungal potential of geraniol (Ger) as a promising natural compound in the fight against MDR C. auris. Our experiments proved that Ger was fungicidal in nature and impaired rhodamine 6G (R6G) efflux, confirming the specific effect on ABC transporters. Kinetic studies unravelled the competitive mode of inhibition by Ger for R6G efflux since the apparent Km increased with no change in Vmax value. Mechanistic insights also revealed that Ger depleted ergosterol content in C. auris. Furthermore, Ger led to inhibition in biofilm formation as evident from crystal violet staining, biofilm metabolic and biomass measurements. Additionally, enhanced survival of Caenorhabditis elegans model after C. auris infection demonstrated the in vivo efficacy of Ger. Lastly, the in vivo efficacy was confirmed from a THP-1 cell line model which depicted enhanced macrophage-mediated killing in the presence of Ger. Modulation of C. auris efflux pump activity and biofilm formation by Ger represents a promising approach to combat MDR. Together, this study demonstrated the potential therapeutic insights of Ger as a promising addition to the antifungal armamentarium required to treat emerging and resistant C. auris.
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Affiliation(s)
- Tazeen Fatima
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram (Manesar), - 122413, India
| | - Zeeshan Fatima
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram (Manesar), - 122413, India.
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Bisha, Bisha, - 61922, Saudi Arabia.
| | - Saif Hameed
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram (Manesar), - 122413, India.
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Liu P, Jiang Y, Jiao L, Luo Y, Wang X, Yang T. Strategies for the Discovery of Oxazolidinone Antibacterial Agents: Development and Future Perspectives. J Med Chem 2023; 66:13860-13873. [PMID: 37807849 DOI: 10.1021/acs.jmedchem.3c01040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Oxazolidinones represent a significant class of synthetic bacterial protein synthesis inhibitors that are primarily effective against Gram-positive bacteria. The commercial success of linezolid, the first FDA-approved oxazolidinone antibiotic, has motivated researchers to develop more potent oxazolidinones by employing various drug development strategies to fight against antimicrobial resistance, some of which have shown promising results. Thus, this Perspective aims to discuss the strategies employed in constructing oxazolidinone-based antibacterial agents and summarize recent advances in discovering oxazolidinone antibiotics to provide valuable insights for potentially developing next-generation oxazolidinone antibacterial agents or other pharmaceuticals.
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Affiliation(s)
- Pingxian Liu
- Center of Infectious Diseases and Laboratory of Human Diseases and Immunotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yunhan Jiang
- Center of Infectious Diseases and Laboratory of Human Diseases and Immunotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ling Jiao
- Center of Infectious Diseases and Laboratory of Human Diseases and Immunotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Youfu Luo
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaodong Wang
- Department of Breast Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Tao Yang
- Center of Infectious Diseases and Laboratory of Human Diseases and Immunotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
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40
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Teixeira R, Salaroglio IC, Oliveira NFB, Sequeira JGN, Fontrodona X, Romero I, Machuqueiro M, Tomaz AI, Garcia MH, Riganti C, Valente A. Fighting Multidrug Resistance with Ruthenium-Cyclopentadienyl Compounds: Unveiling the Mechanism of P-gp Inhibition. J Med Chem 2023; 66:14080-14094. [PMID: 37616241 PMCID: PMC10614197 DOI: 10.1021/acs.jmedchem.3c01120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Indexed: 08/26/2023]
Abstract
The search for more effective and selective drugs to overcome cancer multidrug resistance is urgent. As such, a new series of ruthenium-cyclopentadienyl ("RuCp") compounds with the general formula [Ru(η5-C5H4R)(4,4'-R'-2,2'-bipy)(PPh3)] were prepared and fully characterized. All compounds were evaluated toward non-small cell lung cancer cells with different degrees of cisplatin sensitivity (A549, NCI-H2228, Calu-3, and NCI-H1975), showing better cytotoxicity than the first-line chemotherapeutic drug cisplatin. Compounds 2 and 3 (R' = -OCH3; R = CHO (2) or CH2OH (3)) further inhibited the activity of P-gp and MRP1 efflux pumps by impairing their catalytic activity. Molecular docking calculations identified the R-site P-gp pocket as the preferred one, which was further validated using site-directed mutagenesis experiments in P-gp. Altogether, our results unveil the first direct evidence of the interaction between P-gp and "RuCp" compounds in the modulation of P-gp activity and establish them as valuable candidates to circumvent cancer MDR.
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Affiliation(s)
- Ricardo
G. Teixeira
- Centro
de Química Estrutural, Institute of Molecular Sciences and
Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | | | - Nuno F. B. Oliveira
- BioISI:
Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - João G. N. Sequeira
- BioISI:
Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Xavier Fontrodona
- Departament
de Química and Serveis Tècnics de Recerca, Universitat de Girona, C/M. Aurèlia Campmany, 69, E-17003 Girona, Spain
| | - Isabel Romero
- Departament
de Química and Serveis Tècnics de Recerca, Universitat de Girona, C/M. Aurèlia Campmany, 69, E-17003 Girona, Spain
| | - Miguel Machuqueiro
- BioISI:
Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Ana Isabel Tomaz
- Centro
de Química Estrutural, Institute of Molecular Sciences and
Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - M. Helena Garcia
- Centro
de Química Estrutural, Institute of Molecular Sciences and
Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Chiara Riganti
- Department
of Oncology, University of Torino, 10126 Torino, Italy
- Molecular
Biotechnology Center “Guido Tarone”, University of Torino, 10126 Torino, Italy
| | - Andreia Valente
- Centro
de Química Estrutural, Institute of Molecular Sciences and
Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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Krahulcová M, Cverenkárová K, Koreneková J, Oravcová A, Koščová J, Bírošová L. Occurrence of Antibiotic-Resistant Bacteria in Fish and Seafood from Slovak Market. Foods 2023; 12:3912. [PMID: 37959031 PMCID: PMC10647796 DOI: 10.3390/foods12213912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
The consumption of sushi or poke has grown globally. However, this type of dish often contains raw fish or seafood; therefore, it can pose a microbial risk for consumers. This study deals with the occurrence of total and antibiotic-resistant coliform bacteria and enterococci in fish and seafood as well as sushi and poke bought from Slovak retail (restaurants and fast food). Total coliforms have ranged in sushi, poke samples and samples of fish and seafood from cooling counters from 0.6 to 5.1 log CFU/g. Ampicillin resistance has been predominantly observed in all types of samples. Tetracycline resistance was detected in 16% of all tested samples and gentamicin resistance in 13%. Total enterococci has been detected in 74% of sushi samples, 100% of poke samples and 62% of samples obtained from supermarkets. The majority of enterococci were resistant to ampicillin. Vancomycin resistance was observed in five samples. Forty-eight resistant coliforms were identified mainly as Enterobacter spp. and Klebsiella spp. Antibiotic-resistant isolates were predominantly resistant to gentamicin, chloramphenicol and tetracycline. In 13% of resistant isolates was detected efflux pumps overproduction, and in four isolates was detected the tetA resistance gene. Our results point to poor hygiene in some establishments. The prevention of the antibiotic-resistant bacteria spread would be in better stewardship and improved monitoring of sanitation.
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Affiliation(s)
- Monika Krahulcová
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (K.C.); (J.K.); (A.O.); (L.B.)
| | - Klára Cverenkárová
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (K.C.); (J.K.); (A.O.); (L.B.)
| | - Júlia Koreneková
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (K.C.); (J.K.); (A.O.); (L.B.)
| | - Andrea Oravcová
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (K.C.); (J.K.); (A.O.); (L.B.)
| | - Jana Koščová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 04181 Košice, Slovakia;
| | - Lucia Bírošová
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (K.C.); (J.K.); (A.O.); (L.B.)
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Chung KM, Liau XL, Tang SS. Bacteriophages and Their Host Range in Multidrug-Resistant Bacterial Disease Treatment. Pharmaceuticals (Basel) 2023; 16:1467. [PMID: 37895938 PMCID: PMC10610060 DOI: 10.3390/ph16101467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/18/2023] [Accepted: 06/26/2023] [Indexed: 10/29/2023] Open
Abstract
The rapid emergence of multidrug-resistant (MDR) bacteria in recent times has prompted the search for new and more potent antibiotics. Bacteriophages (commonly known as phages) are viruses that target and infect their bacterial hosts. As such, they are also a potential alternative to antibiotics. These phages can be broadly categorized into monovalent (with a narrow host range spectrum and specific to a single bacterial genus) and polyvalent (with a broad host range and specific to more than two genera). However, there is still much ambiguity in the use of these terms, with researchers often describing their phages differently. There is considerable research on the use of both narrow- and broad-host range phages in the treatment of infections and diseases caused by MDR bacteria, including tuberculosis, cystic fibrosis, and carbapenem-resistant Enterobacterales (CRE) infectious diseases. From this, it is clear that the host range of these phages plays a vital role in determining the effectiveness of any phage therapy, and this factor is usually analyzed based on the advantages and limitations of different host ranges. There have also been efforts to expand phage host ranges via phage cocktail development, phage engineering and combination therapies, in line with current technological advancements. This literature review aims to provide a more in-depth understanding of the role of phage host ranges in the effectiveness of treating MDR-bacterial diseases, by exploring the following: phage biology, the importance of phages in MDR bacteria diseases treatment, the importance of phage host range and its advantages and limitations, current findings and recent developments, and finally, possible future directions for wide host range phages.
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Affiliation(s)
- Ka Mun Chung
- Division of Microbiology and Molecular Genetics, Institute of Biological Sciences, Faculty of Sciences, University Malaya, Kuala Lumpur 50603, Malaysia
| | - Xiew Leng Liau
- Division of Microbiology and Molecular Genetics, Institute of Biological Sciences, Faculty of Sciences, University Malaya, Kuala Lumpur 50603, Malaysia
| | - Swee Seong Tang
- Division of Microbiology and Molecular Genetics, Institute of Biological Sciences, Faculty of Sciences, University Malaya, Kuala Lumpur 50603, Malaysia
- Centre for Research in Biotechnology for Agriculture, University Malaya, Kuala Lumpur 50603, Malaysia
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Ghosh R, De M. Liposome-Based Antibacterial Delivery: An Emergent Approach to Combat Bacterial Infections. ACS OMEGA 2023; 8:35442-35451. [PMID: 37810644 PMCID: PMC10551917 DOI: 10.1021/acsomega.3c04893] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/08/2023] [Indexed: 10/10/2023]
Abstract
The continued emergence and spread of drug-resistant pathogens and the decline in the approval of new antimicrobial drugs pose a major threat to managing infectious diseases, resulting in high morbidity and mortality. Even though a significant variety of antibiotics can effectively cure many bacterial infectious diseases, microbial infections remain one of the biggest global health problems, which may be due to the traditional drug delivery system's shortcomings which lead to poor therapeutic index, low drug absorption, and numerous other drawbacks. Further, the use of traditional antibiotics to treat infectious diseases has always been accompanied by the emergence of multidrug resistance and adverse side effects. Despite developing numerous new antibiotics, nanomaterials, and various techniques to combat infectious diseases, they have persisted as major global health issues. Improving the current antibiotic delivery systems is a promising approach to solving many life-threatening infections. In this context, nanoliposomal systems have recently attracted much attention. Herein, we attempt to provide a concise summary of recent studies that have used liposomal nanoparticles as delivery systems for antibacterial medicines. The minireview also highlights the enormous potential of liposomal nanoparticles as antibiotic delivery systems. The future of these promising approaches lies in developing more efficient delivery systems by precisely targeting bacterial cells with antibiotics with minimum cytotoxicity and high bacterial combating efficacy.
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Affiliation(s)
- Rita Ghosh
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Mrinmoy De
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, Karnataka, India
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44
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Saravanan H, Subramani T, Rajaramon S, David H, Sajeevan A, Sujith S, Solomon AP. Exploring nanocomposites for controlling infectious microorganisms: charting the path forward in antimicrobial strategies. Front Pharmacol 2023; 14:1282073. [PMID: 37829306 PMCID: PMC10565656 DOI: 10.3389/fphar.2023.1282073] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023] Open
Abstract
Nanocomposites, formed by combining a matrix (commonly polymer or ceramic) with nanofillers (nano-sized inclusions like nanoparticles or nanofibers), possess distinct attributes attributed to their composition. Their unique physicochemical properties and interaction capabilities with microbial cells position them as a promising avenue for infectious disease treatment. The escalating prevalence of multi-drug resistant bacteria intensifies the need for alternative solutions. Traditional approaches involve antimicrobial agents like antibiotics, antivirals, and antifungals, targeting specific microbial aspects. This review presents a comprehensive overview of diverse nanocomposite types and highlights the potential of tailored matrix and antibacterial agent selection within nanocomposites to enhance treatment efficacy and decrease antibiotic resistance risks. Challenges such as toxicity, safety, and scalability in clinical applications are also acknowledged. Ultimately, the convergence of nanotechnology and infectious disease research offers the prospect of enhanced therapeutic strategies, envisioning a future wherein advanced materials revolutionize the landscape of medical treatment.
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Affiliation(s)
| | | | | | | | | | | | - Adline Princy Solomon
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
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45
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Narciso A, Barra Caracciolo A, De Carolis C. Overview of Direct and Indirect Effects of Antibiotics on Terrestrial Organisms. Antibiotics (Basel) 2023; 12:1471. [PMID: 37760767 PMCID: PMC10525971 DOI: 10.3390/antibiotics12091471] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
Antibiotics (ABs) have made it possible to treat bacterial infections, which were in the past untreatable and consequently fatal. Regrettably, their use and abuse among humans and livestock led to antibiotic resistance, which has made them ineffective in many cases. The spread of antibiotic resistance genes (ARGs) and bacteria is not limited to nosocomial environments, but also involves water and soil ecosystems. The environmental presence of ABs and ARGs is a hot topic, and their direct and indirect effects, are still not well known or clarified. A particular concern is the presence of antibiotics in agroecosystems due to the application of agro-zootechnical waste (e.g., manure and biosolids), which can introduce antibiotic residues and ARGs to soils. This review provides an insight of recent findings of AB direct and indirect effects on terrestrial organisms, focusing on plant and invertebrates. Possible changing in viability and organism growth, AB bioaccumulation, and shifts in associated microbiome composition are reported. Oxidative stress responses of plants (such as reactive oxygen species production) to antibiotics are also described.
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Affiliation(s)
- Alessandra Narciso
- Water Research Institute, National Research Council (IRSA-CNR), SP 35d, km 0.7 Montelibretti, 00010 Rome, Italy; (A.N.); (C.D.C.)
- Department of Ecological and Biological Sciences, Tuscia University, Largo dell’Università s.n.c., 01100 Viterbo, Italy
| | - Anna Barra Caracciolo
- Water Research Institute, National Research Council (IRSA-CNR), SP 35d, km 0.7 Montelibretti, 00010 Rome, Italy; (A.N.); (C.D.C.)
| | - Chiara De Carolis
- Water Research Institute, National Research Council (IRSA-CNR), SP 35d, km 0.7 Montelibretti, 00010 Rome, Italy; (A.N.); (C.D.C.)
- Department of Environmental Biology, La Sapienza’ University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
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46
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Siraj EA, Yayehrad AT, Belete A. How Combined Macrolide Nanomaterials are Effective Against Resistant Pathogens? A Comprehensive Review of the Literature. Int J Nanomedicine 2023; 18:5289-5307. [PMID: 37732155 PMCID: PMC10508284 DOI: 10.2147/ijn.s418588] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 08/23/2023] [Indexed: 09/22/2023] Open
Abstract
Macrolide drugs are among the broad-spectrum antibiotics that are considered as "miracle drugs" against infectious diseases that lead to higher morbidity and mortality rates. Nevertheless, their effectiveness is currently at risk owing to the presence of devastating, antimicrobial-resistant microbes. In view of this challenge, nanotechnology-driven innovations are currently being anticipated for promising approaches to overcome antimicrobial resistance. Nowadays, various nanostructures are being developed for the delivery of antimicrobials to counter drug-resistant microbial strains through different mechanisms. Metallic nanoparticle-based delivery of macrolides, particularly using silver and gold nanoparticles (AgNPs & AuNPs), demonstrated a promising outcome with worthy stability, oxidation resistance, and biocompatibility. Similarly, macrolide-conjugated magnetic NPs resulted in an augmented antimicrobial activity and reduced bacterial cell viability against resistant microbes. Liposomal delivery of macrolides also showed favorable synergistic antimicrobial activities in vitro against resistant strains. Loading macrolide drugs into various polymeric nanomaterials resulted in an enhanced zone of inhibition. Intercalated nanomaterials also conveyed an outstanding macrolide delivery characteristic with efficient targeting and controlled drug release against infectious microbes. This review abridges several nano-based delivery approaches for macrolide drugs along with their recent achievements, challenges, and future perspectives.
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Affiliation(s)
- Ebrahim Abdela Siraj
- Department of Pharmacy, School of Health Sciences, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
- Department of Pharmaceutics and Social Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Ashagrachew Tewabe Yayehrad
- Department of Pharmacy, School of Health Sciences, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Anteneh Belete
- Department of Pharmaceutics and Social Pharmacy, School of Pharmacy, College of Medicine and Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
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Rayzah M, Elderdery AY, Alzerwi NAN, Alzahrani B, Alsrhani A, Alsultan A, Idrees B, Rayzah F, Bakhsh Y, Alzahrani AM, Subbiah SK, Mok PL. Syzygium cumini (L.) Extract-Derived Green Titanium Dioxide Nanoparticles Induce Caspase-Dependent Apoptosis in Hepatic Cancer Cells. PLANTS (BASEL, SWITZERLAND) 2023; 12:3174. [PMID: 37765338 PMCID: PMC10537597 DOI: 10.3390/plants12183174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/11/2023] [Accepted: 06/12/2023] [Indexed: 09/29/2023]
Abstract
An aqueous extract of Syzygium cumini seeds was utilized to green synthesize titanium dioxide nanoparticles (TiO2 NPs). UV-Visible, DLS, FTIR, XRD, FESEM, TEM, SAED, EDAX, and photoluminescence spectroscopy techniques were employed to characterize the prepared TiO2 nanoparticles. The rutile crystal structure of TiO2 NPs was revealed by XRD study. The TEM and FESEM images of the TiO2 NPs revealed an average particle size of 50-100 nm. We employed EDAX to investigate the elemental compositions of TiO2 NPs. The O-Ti-O stretching bands appeared in the FTIR spectrum of TiO2 NPs at wavenumbers of 495 cm-1. The absorption edge peaks of TiO2 NPs were found in the UV-vis spectra at 397 nm. The MTT study revealed that TiO2 NPs effectively inhibited the growth of liver cancer Hep3 and Hep-G2 cells. The results of the corresponding fluorescent staining assays showed that TiO2 NPs significantly increased ROS generation, decreased MMP, and induced apoptosis in both liver cancer Hep3 and Hep-G2 cells. TiO2 nanoparticles lessened SOD, CAT, and GSH levels while augmenting MDA contents in Hep3 and Hep-G2 cells. In both Hep3 and Hep-G2 cells treated with TiO2 NPs, the Bax, CytC, p53, caspase-3, -8, and -9 expressions were remarkably augmented, while Bcl-2 expression was reduced. Overall, these findings revealed that formulated TiO2 NPs treatment considerably inhibited growth and triggered apoptosis in Hep3 and HepG2 cells.
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Affiliation(s)
- Musaed Rayzah
- Department of Surgery, College of Medicine, Majmaah University, Al Majmaah 11952, Saudi Arabia
| | - Abozer Y. Elderdery
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 42421, Saudi Arabia
| | - Nasser A. N. Alzerwi
- Department of Surgery, College of Medicine, Majmaah University, Al Majmaah 11952, Saudi Arabia
| | - Badr Alzahrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 42421, Saudi Arabia
| | - Abdullah Alsrhani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 42421, Saudi Arabia
| | - Afnan Alsultan
- Department of Surgery, King Saud Medical City, Riyadh 12746, Saudi Arabia
| | - Bandar Idrees
- Department of Surgery, Prince Sultan Military Medical City, As Sulimaniyah 12233, Saudi Arabia
| | - Fares Rayzah
- Aseer Central Hospital, Abha 62523, Saudi Arabia
| | - Yaser Bakhsh
- Iman General Hospital, Riyadh 12211, Saudi Arabia
| | - Ahmed M. Alzahrani
- Department of Surgery, College of Medicine, Majmaah University, Al Majmaah 11952, Saudi Arabia
| | - Suresh K. Subbiah
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai 600073, India
| | - Pooi Ling Mok
- Department of Biomedical Science, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia
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Banawas SS, Alobaidi AS, Dawoud TM, AlDehaimi A, Alsubaie FM, Abdel-Hadi A, Manikandan P. Prevalence of Multidrug-Resistant Bacteria in Healthcare-Associated Bloodstream Infections at Hospitals in Riyadh, Saudi Arabia. Pathogens 2023; 12:1075. [PMID: 37764883 PMCID: PMC10536600 DOI: 10.3390/pathogens12091075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/22/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Bloodstream infection (BSI) prevalence in hospitalized patients has increased owing to the spread of antibiotic-resistant pathogens; moreover, antimicrobial resistance in bacteria is a global problem. Here, BSIs are investigated in several patients at a hospital in Saudi Arabia, and the resistance of bacterial isolates to widely used drugs is determined. Throughout 2020, bacteria isolated from patients were identified and subjected to antibiotic susceptibility testing. In total, 1125 bacterial isolates were obtained from 1039 patients; among them, gram-positive bacteria were significantly more abundant than gram-negative bacteria. The most prevalent bacteria were Staphylococcus epidermidis and Klebsiella pneumoniae. Notably, gram-negative bacteria were mainly isolated from adult patients, and 20.63% of the gram-positive isolates were from pediatric patients, which was significantly higher than the corresponding percentages in elders and adults. The gram-positive isolates were mainly resistant to cephalothin, oxacillin, amoxicillin-clavulanate, and erythromycin and susceptible to penicillin, gentamicin, ciprofloxacin, and vancomycin. Additionally, the gram-negative isolates were mainly resistant to ampicillin, cephalothin, and amoxicillin-clavulanate and susceptible to amikacin, ertapenem, aztreonam, colistin, and trimethoprim-sulfamethoxazole. Consequently, the high prevalence of infective multidrug-resistant bacteria may account as a significant health issue; it is considered a hazard in Riyadh hospitals and must be prevented at all costs.
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Affiliation(s)
- Saeed S. Banawas
- Department of Medical Laboratories, College of Applied Medical Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia; (F.M.A.); (A.A.-H.); (P.M.)
- Health and Basic Sciences Research Center, Majmaah University, Al-Majmaah 11952, Saudi Arabia
- Department of Biomedical Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Ahmed S. Alobaidi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 4255, Riyadh 11451, Saudi Arabia; (A.S.A.); (T.M.D.)
| | - Turki M. Dawoud
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 4255, Riyadh 11451, Saudi Arabia; (A.S.A.); (T.M.D.)
| | - Abdullah AlDehaimi
- MBS-Infection Control, King Fahad Medical City, Riyadh 12211, Saudi Arabia;
| | - Faisal M. Alsubaie
- Department of Medical Laboratories, College of Applied Medical Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia; (F.M.A.); (A.A.-H.); (P.M.)
| | - Ahmed Abdel-Hadi
- Department of Medical Laboratories, College of Applied Medical Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia; (F.M.A.); (A.A.-H.); (P.M.)
| | - Palanisamy Manikandan
- Department of Medical Laboratories, College of Applied Medical Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia; (F.M.A.); (A.A.-H.); (P.M.)
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Painuli S, Semwal P, Sharma R, Akash S. Superbugs or multidrug resistant microbes: A new threat to the society. Health Sci Rep 2023; 6:e1480. [PMID: 37547359 PMCID: PMC10397562 DOI: 10.1002/hsr2.1480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/13/2023] [Accepted: 07/21/2023] [Indexed: 08/08/2023] Open
Affiliation(s)
- Sakshi Painuli
- Natural Products Research LaboratoryUttarakhand Council for BiotechnologyDehradunIndia
| | - Prabhakar Semwal
- Department of BiotechnologyGraphic Era (Deemed to be University)DehradunIndia
- Research and Development CellGraphic Era Hill UniversityDehradunIndia
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya KalpanaFaculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu UniversityUttar PradeshVaranasiIndia
| | - Shopnil Akash
- Faculty of Allied Health ScienceDepartment of Pharmacy, Daffodil International UniversityDhakaBangladesh
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Jain T, Mishra P, Kumar S, Panda G, Banerjee D. Molecular dissection studies of TAC1, a transcription activator of Candida drug resistance genes of the human pathogenic fungus Candida albicans. Front Microbiol 2023; 14:994873. [PMID: 37502396 PMCID: PMC10370356 DOI: 10.3389/fmicb.2023.994873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 06/06/2023] [Indexed: 07/29/2023] Open
Abstract
The up-regulation of ABC transporters Cdr1p and Cdr2p that efflux antifungal azole drugs are a leading cause of Multi-Drug Resistance (MDR) in the white fungus Candida albicans. C. albicans was reported to infect patients following the recent Covid-19 pandemic after they were given steroids for recovery. Previously, the TAC1 gene was identified as the transcriptional activator of Candida drug resistance genes (CDR1 and CDR2) and has no known human homologs. This makes it a good target for the development of novel antifungals. We, therefore, carried out the molecular dissection study of TAC1 to understand the functional regulation of the ABC transporter genes (CDR1 and CDR2) under its control. The N-terminal DNA Binding Domain (DBD) of Tac1p interacts with the Drug Responsive Element (DRE) present in the upstream promoter region of CDR1 and CDR2 genes of C. albicans. The interaction between DBD and DRE recruits Tac1p to the promoter of CDR genes. The C-terminal Acidic Activation Domain (AAD) of Tac1p interacts with the TATA box Binding Protein (TBP) and thus recruits TBP to the TATA box of CDR1 and CDR2 genes. Taking a cue from a previous study involving a TAC1 deletion strain that suggested that Tac1p acts as a xenobiotic receptor, in this study, we identified that the Middle Homology Region (MHR) of Tac1p acts as a probable xenobiotic binding domain (XBD) which plays an important role in Candida drug resistance. In addition, we studied the role of Tac1p in the regulation of some lipid profiling genes and stress response genes since they also contain the DRE consensus sequence and found that some of them can respond to xenobiotic stimuli.
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Affiliation(s)
- Tushar Jain
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Lucknow, Uttar Pradesh, India
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Pankaj Mishra
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Sushil Kumar
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Gautam Panda
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Lucknow, Uttar Pradesh, India
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
| | - Dibyendu Banerjee
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Lucknow, Uttar Pradesh, India
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
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