Topological difference in the three-dimensional sinusoid structure between normal human liver and hepatocellular...

Area of Science:

• Hepatobiliary system research
• Medical imaging analysis
• Cancer biology

Background:

• The liver's sinusoid structure is crucial for its function.
• Hepatocellular carcinoma (HCC) is a common liver cancer.
• Understanding structural changes in HCC is vital for diagnosis and treatment.

Purpose of the Study:

• To quantitatively analyze the 3D sinusoid network topology in normal liver and HCC.
• To compare the connectivity and complexity of sinusoids between normal and cancerous liver tissue.

Main Methods:

• Computer-assisted reconstruction from serial tissue sections.
• Quantitative topological analysis of sinusoid networks.
• Measurement of mean cycle rank and sinusoid volume in defined tissue samples.

Main Results:

• Hepatocellular carcinoma showed a significantly lower mean cycle rank (20.8) compared to normal liver (60.6).
• No significant difference was found in sinusoid volume between normal liver and HCC.
• The sinusoid network in HCC was found to be more sparsely and coarsely connected in 3D.

Conclusions:

• Hepatocellular carcinoma significantly disrupts the normal 3D topological organization of liver sinusoids.
• The reduced connectivity of sinusoids in HCC may impact liver function and disease progression.
• Quantitative topological analysis provides valuable insights into structural alterations in liver cancer.