Novel Optical Criteria and Mechanisms of Critical Decline in Liver Regenerative Potential

Area of Science:

• Hepatology
• Regenerative Medicine
• Medical Imaging

Background:

• Liver resection is a primary treatment for liver tumors, but outcomes are compromised by reduced liver regeneration.
• Mechanisms disrupting liver regeneration and methods to assess its potential are poorly understood.
• Acute liver injury (ALI) serves as a relevant model for studying liver regeneration disruptions.

Purpose of the Study:

• To investigate the mechanisms underlying impaired liver regeneration.
• To explore novel methods for assessing the liver's regenerative potential.
• To leverage advanced imaging techniques for studying cellular processes during liver regeneration.

Main Methods:

• Utilizing multiphoton microscopy with second harmonic generation (SHG) and fluorescence lifetime imaging microscopy (FLIM).
• Employing non-contrast imaging for intravital evaluation of hepatocyte metabolic status.
• Modeling liver injury using acute liver injury (ALI) in relevant experimental setups.

Main Results:

• Advanced microscopy techniques allow for real-time assessment of hepatocyte metabolic state.
• These methods provide a window into cellular processes during liver regeneration.
• The study establishes a foundation for understanding regeneration in the context of liver pathologies.

Conclusions:

• Non-contrast multiphoton microscopy (SHG and FLIM) offers powerful intravital assessment of hepatocyte metabolism.
• This approach enhances the study of liver regeneration mechanisms, particularly in the presence of complicating pathologies.
• Further research using these techniques could lead to effective methods for assessing liver regenerative potential.