Mechanobiology of microvesicle release, uptake, and microvesicle-mediated activation

Area of Science:

• Cell biology
• Extracellular vesicles
• Disease mechanisms

Background:

• Microvesicles are shed from cell membranes and carry diverse cargo like proteins and microRNAs.
• This cargo transfer between cells influences recipient cell functions, promoting disease progression.
• Elevated microvesicle levels are observed in diseased tissues, highlighting their role in cell communication and pathology.

Purpose of the Study:

• To review recent advances in understanding microvesicle biogenesis, uptake, and signaling.
• To explore the mechanosensitivity of microvesicle release and internalization.
• To discuss the implications of microvesicle function in disease progression and therapeutic targeting.

Main Methods:

• Review of current literature on actomyosin-regulated microvesicle biogenesis.
• Analysis of microvesicle uptake mechanisms, including pinocytosis.
• Discussion of cellular signaling pathways modulated by microvesicle cargo.

Main Results:

• Microvesicle cargo transfer can transform recipient cells, affecting metabolism, contractility, and immune signaling.
• Mechanisms of microvesicle release and uptake are sensitive to cellular mechanical properties.
• Altered cell contractility and extracellular matrix influence microvesicle-mediated signaling.

Conclusions:

• Understanding microvesicle dynamics is crucial for comprehending their role in disease.
• Cellular mechanics significantly impact microvesicle-mediated cell communication and disease.
• Microvesicles represent potential therapeutic targets for diseases driven by aberrant cell signaling.