Physiochemical characterization of a potential phage MKP-1 and analysis of its application in reducing biofilm formation.

Front Microbiol

Department of Bioscience and Bioengineering, IIT Bombay, Mumbai, Maharashtra, India.

Published: July 2024

The common intestinal pathogen is one of the leading causes of fatal superbug infections that can resist the effects of commonly prescribed medicines. The uncontrolled use or misuse of antibiotics has increased the prevalence of drug-resistant strains in the environment. In the quest to search for alternative therapeutics for treating these drug-resistant infections, bacteriophages (bacterial viruses) emerged as potential candidates for in phage therapy against . The effective formulation of phage therapy against drug-resistant infections demands thorough characterization and screening of many bacteriophages. To contribute effectively to the formulation of successful phage therapy against superbug infections by , this study includes the isolation and characterization of a novel lytic bacteriophage MKP-1 to consider its potential to be used as therapeutics in treating drug-resistant infections. Morphologically, having a capsid attached to a long non-contractile tail, it was found to be a siphovirus that belongs to the class and showed infectivity against different strains of the target host bacterium. Comparatively, this double-stranded DNA phage has a large burst size and is quite stable in various physiological conditions. More interestingly, it has the potential to degrade the tough biofilms formed by ( subsp. (Schroeter) Trevisan [ATCC 15380]) significantly. Thus, the following study would contribute effectively to considering phage MKP-1 as a potential candidate for phage therapy against infection.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11288805PMC
http://dx.doi.org/10.3389/fmicb.2024.1397447DOI Listing

Publication Analysis

Top Keywords

phage therapy
16
drug-resistant infections
12
phage mkp-1
8
superbug infections
8
therapeutics treating
8
treating drug-resistant
8
contribute effectively
8
phage
7
potential
5
infections
5

Similar Publications

Disrupting EDEM3-induced M2-like macrophage trafficking by glucose restriction overcomes resistance to PD-1/PD-L1 blockade.

Clin Transl Med

January 2025

Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.

Background: Immunotherapy is beneficial for some colorectal cancer (CRC) patients, but immunosuppressive networks limit its effectiveness. Cancer-associatedfibroblasts (CAFs) are significant in immune escape and resistance toimmunotherapy, emphasizing the urgent need for new treatment strategies.

Methods: Flow cytometric, Western blotting, proteomics analysis, analysis of public database data, genetically modified cell line models, T cell coculture, crystal violetstaining, ELISA, metabonomic and clinical tumour samples were conducted to assess the role of EDEM3 in immune escape and itsmolecular mechanisms.

View Article and Find Full Text PDF

Isolation and characterization of ɸEcM-vB1 bacteriophage targeting multidrug-resistant Escherichia coli.

BMC Res Notes

January 2025

Department of Microbiology and Immunology, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt.

Objectives: The aim of this study is to screen for, isolate and characterize a bacteriophage designated ɸEcM-vB1 with confirmed lytic activity against multidrug-resistant (MDR) E. coli. Methods done in this research are bacteriophage isolation, purification, titer determination, bacteriophage morphology, host range determination, bacteriophage latent period and burst size determination, genomic analysis by restriction enzymes, and bacteriophage total protein content determination.

View Article and Find Full Text PDF

Therapeutic effect of fully human anti-Nrp-1 antibody on non-small cell lung cancer in vivo and in vitro.

Cancer Immunol Immunother

January 2025

Public Center of Experimental Technology, The School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, Sichuan Province, China.

Although immune checkpoint inhibitors have changed the treatment paradigm for non-small cell lung cancer (NSCLC), not all patients benefit from them. Therefore, there is an urgent need to explore novel immune checkpoint inhibitors. Neuropilin-1 (Nrp-1) is a unique immune checkpoint capable of exerting antitumor effects through CD8 T cells.

View Article and Find Full Text PDF
Article Synopsis
  • Quorum sensing (QS) regulates various bacterial adaptations to environmental changes and may influence phage infections, but current knowledge about this interaction is incomplete.
  • A novel phage, BUCT640, was characterized as having a unique morphology and depended on Psl polysaccharides for adsorption, revealing how bacterial QS pathways affect phage sensitivity.
  • The study discovered that QS could inhibit phage adsorption by altering biofilm thickness, suggesting that disrupting QS could enhance phage therapy efficacy against drug-resistant bacterial infections.
View Article and Find Full Text PDF
Article Synopsis
  • Acinetobacter baumannii, especially the carbapenem-resistant strains (CRAB), is a critical pathogen linked to antimicrobial resistance (AMR) and is prioritized by the WHO.
  • Phage therapy is being explored as a potential treatment for CRAB infections due to increasing resistance to conventional antibiotics.
  • A newly isolated lytic phage, vAbaIN10, exhibits effective lytic activity against CRAB in various conditions and shows promise in advancing treatment options for multidrug-resistant infections.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!