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Related Experiment Video

Updated: May 25, 2026

Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States

Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States

Published on: April 1, 2015

Dissecting the fibrillin microfibril: structural insights into organization and function.

Sacha A Jensen¹, Ian B Robertson, Penny A Handford

¹Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom.

Structure (London, England : 1993)

|February 14, 2012

Summary

Fibrillin microfibrils provide elasticity to tissues but their structure remains debated. Recent data reveal how fibrillin maintains architecture and interactions, crucial for tissue health and disease.

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Area of Science:

Biochemistry
Structural Biology
Tissue Engineering

Background:

Fibrillin microfibrils (10-12 nm diameter) are essential for elasticity and flexibility in force-bearing tissues like blood vessels, lungs, and ligaments.
These microfibrils maintain tissue structural integrity and regulate extracellular growth factors, with defects causing diseases in skin, cardiovascular, skeletal, and ocular systems.
Despite fibrillin-1's discovery over 20 years ago, its monomer organization within microfibrils remains controversial.

Purpose of the Study:

To review current knowledge on microfibril structure, focusing on individual fibrillin domains and their interactions.
To explore the calcium-dependent mechanisms governing fibrillin interactions and microfibril dynamics.
To connect microfibril structure and dynamics to their function in both healthy and diseased states.

Main Methods:

Analysis of recent structural data on fibrillin architecture.
Review of studies on calcium-dependent interdomain interactions in fibrillin.
Synthesis of information on microfibril dynamics and self-assembly.

Main Results:

Recent structural data elucidate how fibrillin maintains its architecture in dynamic tissues.
Fibrillin's ability to interact with itself and other matrix components is preserved.
Calcium-dependent tuning of pairwise interdomain interactions plays a key role.

Conclusions:

Understanding fibrillin microfibril structure is critical for comprehending tissue mechanics and disease.
Recent advances provide insights into fibrillin's self-assembly and interaction strategies.
This knowledge is vital for developing therapeutic strategies for fibrillin-related disorders.