Measurement of Liver Stiffness Using Atomic Force Microscopy Coupled with Polarization Microscopy

作者： Srikant Ojha1, Jan Pribyl2, Simon Klimovic2,3, Daniel Hadraba4, Marketa Jirouskova1, Martin Gregor1 1Laboratory of Integrative Biology,Institute of Molecular Genetics of the Czech Academy of Sciences, 2CEITEC MU,Masaryk University, 3Department of Biochemistry, Faculty of Science,Masaryk University, 4Laboratory of Biomathematics,Czech-BioImaging IPHYS, Institute of Physiology of the Czech Academy of Sciences

简介：

Overview

This study presents a protocol to measure the elastic moduli of collagen-rich areas in normal and fibrotic liver tissues using atomic force microscopy (AFM) combined with polarization microscopy. The technique allows for high spatial precision in identifying collagen-rich regions, which is crucial for understanding liver fibrosis.

Key Study Components

Research Area

• Liver fibrosis and its characterization
• Elastic properties of tissues
• Application of advanced imaging techniques

Background

• The need for improved methods to distinguish collagen-rich from collagen-lacking areas in liver tissues.
• Understanding fibrogenesis is vital for liver disease research.
• Atomic force microscopy (AFM) provides high-resolution measurements in soft tissues.

Methods Used

• Atomic force microscopy (AFM) to measure elastic moduli
• Collagen-rich areas in liver tissues as the biological system
• Polarization microscopy for localization of collagen

Main Results

• Successful identification of collagen-rich areas in liver sections
• Quantification of Young's moduli across different liver regions
• Insight into the mechanical properties associated with fibrosis

Conclusions

• The protocol demonstrates a reliable approach to study liver fibrosis.
• This method could potentially be adapted for other soft tissues, contributing to broader biological research.

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