Growing Mycobacterial Biofilm as a Model to Study Antimicrobial Resistance

Kaushik Poddar; Amitesh Anand

doi:10.3791/66607

Crescita del biofilm micobatterico come modello per studiare la resistenza antimicrobica

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JoVE Journal Biology

Growing Mycobacterial Biofilm as a Model to Study Antimicrobial Resistance

Crescita del biofilm micobatterico come modello per studiare la resistenza antimicrobica

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04:26 min

July 12, 2024

DOI: 10.3791/66607-v

Kaushik Poddar¹, Amitesh Anand¹

¹Department of Biological Sciences,Tata Institute of Fundamental Research

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Overview

This study presents a scalable protocol for developing pellicle biofilms, particularly focusing on mycobacterial species. The approach enhances the physiological relevance of laboratory experiments by mimicking natural bacterial growth more effectively than conventional planktonic methods.

Key Study Components

Research Area

Bacterial metabolism
Biofilm formation
Antimicrobial resistance

Background

Understanding bacterial energy metabolism is crucial for growth and survival.
Existing methods for mycobacterial biofilms can be complex and not widely adopted.
Simplifying biofilm production can facilitate greater adoption in research.

Methods Used

Development of pellicle biofilms using Mycobacterium smegmatis.
Protocols for inoculating cultures and measuring biofilm growth.
Assessment of biofilm development through visual and weight measurement techniques.

Main Results

Biofilm formation became visible from day three and matured by day five.
The inclusion of glucose enhanced the reticulation of cultures.
The protocol provides a reliable method for testing antimicrobial effectiveness against biofilms.

Conclusions

This study demonstrates a simplified and effective method for biofilm development in mycobacteria.
The protocol's relevance extends to understanding bacterial lifestyles and screening for antimicrobials.

Frequently Asked Questions

What is the primary focus of this research?

The research focuses on developing a scalable method for producing biofilms from mycobacterial species, enhancing our understanding of their metabolism and antimicrobial resistance.

How does this protocol benefit laboratory work?

The protocol provides a simplified approach to producing biofilms, making it easier for laboratories to adopt and study mycobacterial behavior in more physiologically relevant conditions.

What key findings were observed regarding biofilm development?

Biofilm development was visible starting from day three, with significant maturation by day five, indicating the effectiveness of the method.

Why is it important to study biofilms?

Studying biofilms is critical as they represent a natural growth state of bacteria, which can impact their resistance to antibiotics and overall pathogenicity.

Which species was used in this biofilm protocol?

The protocol was developed using Mycobacterium smegmatis as the model organism.

What role does glucose play in biofilm development?

The addition of glucose to the media enhances the reticulation of the biofilm cultures, promoting better development.

How can this protocol aid in understanding antimicrobial resistance?

By providing a system to assess the effectiveness of antimicrobials against established biofilms, this protocol can help in understanding and combating antimicrobial resistance.

Questo protocollo descrive un metodo robusto per lo sviluppo di biofilm a pellicola. Il metodo è scalabile a diversi volumi di coltura, consentendo una facile adozione per vari obiettivi sperimentali. La progettazione del metodo consente una valutazione qualitativa o quantitativa del potenziale di formazione del biofilm di diverse specie di micobatteri.

La nostra ricerca si concentra sul metabolismo batterico, in particolare sul metabolismo energetico, che è fondamentale per la crescita e la sopravvivenza. Nonostante i numerosi dati biochimici e strutturali, la comprensione a livello di sistema e i meccanismi di adattamento rimangono poco chiari. Il nostro obiettivo è approfondire queste conoscenze e affrontare la resistenza antimicrobica.

Il nostro protocollo migliora la rilevanza fisiologica degli esperimenti di laboratorio utilizzando i biofilm, che imitano la crescita batterica naturale meglio dei metodi planctonici. L'adattamento dei biofilm microbatterici offrirà un ottimo sistema per comprendere lo stile di vita del gene e offrirà anche un sistema di screening per gli antimicrobici. Non siamo i primi a produrre biofilm micobatterici.

Ci sono diversi gruppi che lo usano come modello. La nostra motivazione alla base della produzione di questo protocollo è stata quella di semplificare il più possibile le procedure in modo che molti laboratori possano adattare questo sistema come modello.

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