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

Area of Science:

• Microbiology
• Biophysics
• Molecular Biology

Background:

• Microorganisms encounter mechanical forces (fluid shear, surface tension, pressure) that influence their behavior.
• Microbes utilize force-sensitive molecular switches in surface appendages (flagella, pili, adhesins) to detect and respond to mechanical cues.
• These responses modulate microbial adhesion, biofilm development, and virulence, but the underlying mechanobiology is not fully understood.

Purpose of the Study:

• To discuss how bacteria and fungi employ mechanosensation to interact with surfaces.
• To highlight challenges in observing real-time molecular responses to mechanical forces.
• To explore novel tools for studying force-driven molecular dynamics in microbes.

Main Methods:

• This perspective synthesizes current knowledge on microbial mechanosensation.
• It discusses challenges in monitoring molecular responses to mechanical stimuli in real-time.
• It explores emerging technologies for investigating force-dependent molecular dynamics.

Main Results:

• Microbial mechanosensation involves interpreting mechanical cues to trigger chemosensation or conformational changes in sensors.
• These processes activate signaling cascades, alter gene expression, and impact biofilm architecture and resilience.
• Mechanical forces significantly influence microbial pathogenicity and virulence.

Conclusions:

• Understanding microbial mechanosensation offers insights for synthetic biology, materials science, and biomedical engineering.
• This knowledge can guide the development of advanced antimicrobial strategies.
• Targeting mechanosensation pathways holds potential for preventing and disrupting biofilms in clinical and industrial settings.