Learning physics and biology from cytoskeletal and condensate interactions

Area of Science:

• Cellular Biology
• Biophysics
• Biochemistry

Background:

• Cells organize through biomolecular condensates (forming membraneless organelles) and cytoskeletal filaments (e.g., actin cortex, mitotic spindle).
• Emerging evidence shows coordination between condensates and the cytoskeleton, impacting cellular organization.
• Understanding this interplay is crucial for comprehending fundamental cellular processes.

Purpose of the Study:

• To review recent advancements (past 2 years) in the coordinated relationship between cellular condensates and the cytoskeleton.
• To elucidate the physical and biological principles governing this interaction.
• To highlight the reciprocal control mechanisms where condensates organize cytoskeletal structures and cytoskeletal elements organize condensates.

Main Methods:

• Literature review focusing on studies published within the last two years.
• Analysis of research at the interface of biomolecular condensates and cytoskeletal organization.
• Synthesis of findings to discuss underlying physical and biological principles.

Main Results:

• Condensates actively regulate cytoskeletal organization, influencing filament dynamics and architecture.
• Cytoskeletal networks provide spatial cues and forces that shape and organize biomolecular condensates.
• This bidirectional control is essential for various cellular functions, including cell division and intracellular transport.

Conclusions:

• The interplay between condensates and the cytoskeleton represents a key mechanism for cellular self-organization.
• Recent research highlights sophisticated physical and biological principles governing this coordination.
• Further investigation promises deeper understanding of cellular structure, function, and disease.