Bacterial biofilm and its role in antibiotic resistance

A biofilm is a dense aggregation of microbial cells encased in an auto-generated matrix of proteins, DNA, and polysaccharides. Bacterial biofilms result in chronic illnesses due to their increased resistance to antibiotics, disinfectants, and the body's immune system. Patients' morbidity a...

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Main Authors: Shabana Sharif, Ashok Kumar Yadav
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:The Microbe
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2950194625001244
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author Shabana Sharif
Ashok Kumar Yadav
author_facet Shabana Sharif
Ashok Kumar Yadav
author_sort Shabana Sharif
collection DOAJ
description A biofilm is a dense aggregation of microbial cells encased in an auto-generated matrix of proteins, DNA, and polysaccharides. Bacterial biofilms result in chronic illnesses due to their increased resistance to antibiotics, disinfectants, and the body's immune system. Patients' morbidity and mortality are raised by biofilms because they give bacteria a barrier of defense and resistance to antibiotics. An oxygen and nutrient gradient from the top to the bottom layer of biofilms is another important feature of biofilms. The quiescent cells that cause some of the antibiotic resistances are associated with the gradients and they have doubled rates and lower metabolic activity. With early treatment or aggressive antibiotic prophylaxis, as well as ongoing suppressive therapy, infections caused due to biofilms can be prevented or cured. This review covers bacterial biofilm formation, composition of biofilm, development of antibiotic resistance and tolerance in bacteria due to biofilm formation, and the generation of persistent cells that produce antibiotic resistance in bacteria.
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spelling doaj-art-4d51afcd55964a4d8b3f5069ea29db092025-08-20T02:29:30ZengElsevierThe Microbe2950-19462025-06-01710035610.1016/j.microb.2025.100356Bacterial biofilm and its role in antibiotic resistanceShabana Sharif0Ashok Kumar Yadav1University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, IndiaCorresponding author.; University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, IndiaA biofilm is a dense aggregation of microbial cells encased in an auto-generated matrix of proteins, DNA, and polysaccharides. Bacterial biofilms result in chronic illnesses due to their increased resistance to antibiotics, disinfectants, and the body's immune system. Patients' morbidity and mortality are raised by biofilms because they give bacteria a barrier of defense and resistance to antibiotics. An oxygen and nutrient gradient from the top to the bottom layer of biofilms is another important feature of biofilms. The quiescent cells that cause some of the antibiotic resistances are associated with the gradients and they have doubled rates and lower metabolic activity. With early treatment or aggressive antibiotic prophylaxis, as well as ongoing suppressive therapy, infections caused due to biofilms can be prevented or cured. This review covers bacterial biofilm formation, composition of biofilm, development of antibiotic resistance and tolerance in bacteria due to biofilm formation, and the generation of persistent cells that produce antibiotic resistance in bacteria.http://www.sciencedirect.com/science/article/pii/S2950194625001244AntibioticResistanceBacterial resistanceBiofilm formationTolerance
spellingShingle Shabana Sharif
Ashok Kumar Yadav
Bacterial biofilm and its role in antibiotic resistance
The Microbe
Antibiotic
Resistance
Bacterial resistance
Biofilm formation
Tolerance
title Bacterial biofilm and its role in antibiotic resistance
title_full Bacterial biofilm and its role in antibiotic resistance
title_fullStr Bacterial biofilm and its role in antibiotic resistance
title_full_unstemmed Bacterial biofilm and its role in antibiotic resistance
title_short Bacterial biofilm and its role in antibiotic resistance
title_sort bacterial biofilm and its role in antibiotic resistance
topic Antibiotic
Resistance
Bacterial resistance
Biofilm formation
Tolerance
url http://www.sciencedirect.com/science/article/pii/S2950194625001244
work_keys_str_mv AT shabanasharif bacterialbiofilmanditsroleinantibioticresistance
AT ashokkumaryadav bacterialbiofilmanditsroleinantibioticresistance