# Cell Adhesion and Biofilm Development via Force-Sensitive Mechanisms: A Perspective

## TL;DR

Microbes use mechanical forces to sense their environment and form biofilms, which can increase their pathogenicity and persistence.

## Contribution

This paper provides a perspective on how microbial mechanosensation influences biofilm development and suggests new research directions.

## Key findings

- Microbes use force-sensitive molecular switches in appendages to interpret mechanical cues.
- Mechanical stimuli affect microbial adhesion, biofilm resilience, and architecture.
- Emerging tools are needed to study real-time molecular responses to force in microbes.

## Abstract

Microorganisms live
in environments where mechanical forces, such
as fluid shear, surface tension, or pressure, shape their adhesion,
biofilm formation, and maturation strategies. Microbes employ force-sensitive
molecular switches embedded in surface appendages like flagella, pili,
and adhesins like ALS1p or FLO11p to interpret mechanical cues. These
mechanical cues trigger chemosensation or generate conformational
changes in mechanosensors, thereby activating downstream signaling
cascades and modulating gene expression. Ultimately, these mechanical
stimuli affect microbial adhesion to surfaces, biofilm resilience,
and architecture, often enhancing pathogenicity and virulence. Yet,
the mechanobiological basis of these events remains underexplored.
In this perspective, we discuss how bacterial and fungal systems use
mechanosensation to navigate complex surfaces, underscore the challenges
in monitoring real-time molecular responses to force, and explore
emerging tools to reveal force-driven molecular dynamics. We highlight
insights for synthetic microbiologists, materials scientists, and
biomedical engineers into microbial mechanosensation and its translational
potential, guiding the development of next-generation antimicrobial
strategies to prevent and disrupt persistent biofilms in clinical
and industrial settings.