Microgravity Effects on the Matrisome

Area of Science:

• Cell biology
• Biophysics
• Space biology

Background:

• Gravity profoundly influences biological development and function on Earth.
• Multicellular organisms evolved sophisticated mechanisms to sense and respond to gravitational changes.
• These mechanisms involve intracellular (cytoskeleton) and extracellular (extracellular matrix - ECM) components, linked by integrins.

Purpose of the Study:

• To review the current understanding of the extracellular matrix (ECM) and associated molecules, termed the matrisome.
• To examine the role of the matrisome in connective tissues and its function in cellular and tissue responses to altered gravity.
• To highlight contemporary methods for analyzing matrisome composition under microgravity conditions.

Main Methods:

• Literature review focusing on matrisome composition and function.
• Analysis of cellular and tissue responses to gravitational alterations.
• Examination of methodologies for matrisome analysis in spaceflight and simulated microgravity.

Main Results:

• The matrisome, including ECM components, acts as a critical gravity-sensing system.
• Integrins mediate communication between intracellular cytoskeleton and extracellular components.
• The matrisome plays a key role in coordinating tissue and organ functions within the gravitational environment.

Conclusions:

• The matrisome is integral to gravity sensing and response in multicellular organisms.
• Understanding the matrisome is crucial for addressing physiological challenges in spaceflight microgravity.
• Advanced analytical techniques are essential for studying the matrisome under simulated and actual space conditions.