Liver cell therapy and tissue engineering for transplantation.

Area of Science:

• Hepatology
• Regenerative Medicine
• Biomedical Engineering

Background:

• Liver transplantation is the sole definitive treatment for liver failure but faces limitations like donor organ scarcity and high costs.
• Alternative cell-based therapies are crucial for expanding treatment accessibility for patients with end-stage liver diseases.
• Current research focuses on augmenting or replacing liver function through innovative approaches.

Purpose of the Study:

• To review and summarize the current landscape of cell-based liver therapies as alternatives to transplantation.
• To highlight the main strategies being investigated for augmenting or replacing liver function.
• To discuss the challenges and successes in translational models and clinical trials of these therapies.

Main Methods:

• Review of existing literature on bioartificial livers (BALs), cell suspension injections, and tissue engineering for liver support.
• Analysis of translational models and clinical trial data for cell-based liver therapies.
• Identification of key challenges and successful outcomes in the field.

Main Results:

• Bioartificial livers (BALs) utilize hepatocytes in extracorporeal devices to process patient plasma.
• Cell injection strategies aim to promote liver regeneration or correct metabolic deficiencies.
• Tissue engineering approaches focus on creating functional liver tissue in vitro for implantation.
• Translational research has demonstrated both significant challenges and promising successes in these alternative therapies.

Conclusions:

• Cell-based liver therapies, including BALs, cell injections, and tissue engineering, represent promising alternatives to liver transplantation.
• These approaches have the potential to overcome donor organ limitations and expand treatment options for liver failure.
• Continued research and clinical trials are essential to address challenges and realize the full potential of these innovative therapies.