Increase urinary hepatocyte growth factor excretion in human acute renal failure

Area of Science:

• Nephrology
• Molecular Biology
• Regenerative Medicine

Background:

• Hepatocyte growth factor (HGF) is crucial for kidney development and repair in animal models.
• Evidence for HGF's role in human renal diseases is limited.
• Investigating HGF's function in human kidney injury is essential.

Purpose of the Study:

• To determine if renal production of HGF increases in humans with kidney disease.
• To assess urine HGF excretion rates in various renal conditions.
• To explore the correlation between HGF levels and disease severity.

Main Methods:

• Urine HGF excretion rates were measured in healthy individuals and patients with acute tubular necrosis (ATN), chronic glomerular disease, polycystic kidney disease, and chronic renal failure.
• HGF levels were quantified using ELISA and normalized for creatinine concentration.
• Urine samples were collected and analyzed from a cohort of 63 participants.

Main Results:

• Low HGF levels were detected in healthy individuals and patients with chronic kidney diseases.
• A significant increase in urine HGF was observed in patients with acute renal failure (ATN).
• HGF excretion correlated with ATN severity and returned to normal levels during recovery.

Conclusions:

• Increased renal HGF production occurs in humans with acute kidney injury.
• HGF plays a role in promoting tubule cell proliferation and recovery from acute tubular injury in humans.
• These findings support HGF's therapeutic potential in managing human renal diseases.