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Updated: Jun 25, 2025
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Author Spotlight: Evaluation of Protein-Condensate Dynamics in Live Human Cells
Published on: January 5, 2024
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Liquid-liquid phase separation as triggering factor of fibril formation
Fereshteh Ramezani Khorsand1, Vladimir N Uversky2
1Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
Summary
Liquid-liquid phase separation (LLPS) is crucial for forming cellular structures and biological processes. Dysregulation of LLPS is linked to diseases, highlighting the need for further research into its mechanisms.
Area of Science:
- Biochemistry and Molecular Biology
- Cell Biology
- Biophysics
Background:
- Liquid-liquid phase separation (LLPS) describes a solution's transition into immiscible phases driven by weak macromolecular interactions.
- This process underlies the formation of membrane-less organelles and biomolecular condensates, essential cellular compartments.
- LLPS is implicated in fundamental biological processes including transcription, immune response, and DNA damage repair.
Purpose of the Study:
- To summarize the current understanding of liquid-liquid phase separation (LLPS) in biological systems.
- To highlight the role of LLPS in cellular organization and function.
- To underscore the connection between aberrant LLPS and various diseases.
Main Methods:
- Review of existing literature on biomolecular phase separation.
- Analysis of factors influencing LLPS, including concentration, salt, pH, and temperature.
- Examination of the role of post-translational modifications and molecular chaperones in regulating LLPS.
Main Results:
- LLPS is a fundamental biophysical mechanism governing the assembly of biomolecular condensates.
- Disruptions in LLPS are associated with pathologies such as cancer and neurodegenerative disorders.
- Databases have been developed to catalog LLPS-related information, aiding research.
Conclusions:
- LLPS is vital for cellular function and organization, with implications for health and disease.
- Further comprehensive research is necessary to elucidate the intricate molecular mechanisms and biological consequences of LLPS.
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