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Published on: December 2, 2022
Regression of liver cirrhosis
Jonathan Andrew Fallowfield1, Prakash Ramachandran1, Timothy James Kendall2
1Centre for Inflammation Research, Institute of Regeneration & Repair, University of Edinburgh, Edinburgh, UK.
Insights
Cirrhosis is a dynamic liver disease, not a fixed end-stage. Understanding the scar
Area of Science:
- Hepatology and liver disease research.
- Cellular and molecular biology of fibrotic diseases.
Background:
- Global cirrhosis prevalence and mortality are increasing significantly.
- Cirrhosis, once considered irreversible, is now recognized as a dynamic and potentially modifiable condition.
- Liver transplantation is the only cure for advanced cirrhosis, highlighting the need for alternative therapeutic strategies.
Purpose of the Study:
- To explore the dynamic nature of cirrhosis and its potential for regression.
- To investigate the factors influencing cirrhosis reversibility beyond fibrosis stage.
- To address the challenges in translating mechanistic insights into effective cirrhosis therapies.
Main Methods:
- Analysis of single-cell and spatial data to characterize fibrotic niches.
- Evaluation of fibrogenic, immune, and vascular cell phenotypes in cirrhosis.
- Review of recent antifibrotic trial outcomes, particularly in MASH-related cirrhosis.
Main Results:
- Cirrhosis is a heterogeneous fibrotic niche influenced by specific cell phenotypes.
- Reversibility depends on the biological state of the scar and microenvironment, not just fibrosis stage.
- Advanced cirrhosis exhibits structural resilience, and regression does not guarantee full tissue homeostasis or eliminate residual risks.
Conclusions:
- Cirrhosis regression is complex, influenced by the microenvironment and cellular phenotypes.
- Current histological endpoints may lack sensitivity for assessing therapeutic efficacy in advanced cirrhosis.
- Developing precise measurement tools and therapies for cirrhosis regression is a critical challenge in hepatology.
Abstract:
Cirrhosis prevalence and mortality continue to rise globally, with a >50% increase in cases since 1990, imposing a growing burden through chronic healthcare needs, recurrent hospitalisation, and liver transplantation, which remains the only definitive cure for advanced disease. Long regarded as a fixed end-stage, cirrhosis is now recognised as a dynamic and modifiable disease state. Sustained aetiological control can induce meaningful architectural remodelling, and single-cell and spatial analyses show that cirrhosis is a heterogeneous fibrotic niche shaped by context-specific fibrogenic, immune, and vascular cell phenotypes. Thus, reversibility is determined not simply by fibrosis stage, but by the biological state of the scar and its microenvironment. Nevertheless, recent disappointing antifibrotic trials, particularly in MASH-related cirrhosis, highlight the structural resilience of advanced disease and the limited sensitivity of conventional histological endpoints. Moreover, although structural improvement appears to confer measurable prognostic benefit, regression does not equate to complete restoration of tissue homeostasis, and residual vascular dysfunction and oncogenic risk often persist. Translating emerging mechanistic insights into precise measurement tools and effective therapies for cirrhosis regression now represents a central challenge in hepatology.
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