Thrombomodulin improves rat survival after extensive hepatectomy

Area of Science:

• Hepatology
• Regenerative Medicine
• Surgical Research

Background:

• Recombinant human soluble thrombomodulin (rTM) is known for its protective effects against disseminated intravascular coagulopathy.
• rTM exhibits anti-coagulant, anti-inflammatory, and anti-apoptotic properties.
• The potential hepatoprotective role of rTM following extensive hepatectomy (Hx) requires further investigation.

Purpose of the Study:

• To test the hypothesis that rTM provides hepatoprotection after extensive Hx.
• To elucidate the underlying mechanisms of rTM's potential hepatoprotective effects.
• To evaluate the impact of rTM on survival rates and liver remnant function post-Hx.

Main Methods:

• Rats underwent 95% Hx and were treated with rTM (1.0 or 2.0 mg/kg) or saline.
• Survival was assessed over 7 days.
• Liver remnant tissues and serum were analyzed using biochemical assays, histology, RT-PCR, and Western blotting.

Main Results:

• rTM treatment significantly prolonged survival compared to saline controls (P=0.003).
• rTM increased proliferation markers (Ki67) and decreased apoptosis markers (TUNL).
• rTM modulated gene expression, upregulating PAR-1 and SK1, and downregulating PAI-1 and Bax.

Conclusions:

• rTM demonstrates significant hepatoprotective effects after extensive Hx in a rat model.
• rTM improves survival by inhibiting apoptosis and promoting liver regeneration.
• The findings suggest rTM as a potential therapeutic agent for post-hepatectomy recovery.