Bioreactors for extracorporeal liver support.

Area of Science:

• Hepatology
• Biomedical Engineering
• Regenerative Medicine

Background:

• Liver transplantation is a critical therapy for end-stage liver disease.
• Current limitations exist in donor organ availability and post-transplant complications.
• Extracorporeal liver support systems offer a potential bridge to transplantation or recovery.

Purpose of the Study:

• To describe the development and concept of the Modular Extracorporeal Liver Support (MELS) system.
• To explore the use of primary human liver cells from non-transplantable organs and liver progenitor cells.
• To present an integrated approach for managing hepatic failure.

Main Methods:

• Development of the Modular Extracorporeal Liver Support (MELS) system.
• Utilization of a CellModule bioreactor with primary human liver cells.
• Integration of a DetoxModule for albumin dialysis to remove toxins.
• Inclusion of a Dialysis Module for continuous veno-venous hemofiltration when needed.

Main Results:

• The MELS concept offers a modular and adaptable extracorporeal therapy for hepatic failure.
• The CellModule can be populated with human liver cells from discarded organs.
• The DetoxModule reduces biochemical burden on liver cells and mimics bile excretion.
• The system can be augmented with dialysis for hepato-renal syndrome.

Conclusions:

• The MELS system provides a flexible, integrated approach to liver support.
• Utilizing cells from compromised donor livers is a viable strategy.
• This hybrid system has the potential to improve outcomes for patients with liver failure.