A novel biochemical plasma marker of true type V collagen formation. Circulating biomarkers, originating from defined fragments of the scar tissue itself, may serve as valuable tools for precision medicine.

Ninety-four patients mainly with alcoholic cirrhosis and fourteen liver-healthy controls were included in a retrospective study. Relevant clinical and routine laboratory data and hemodynamics were determined. Plasma Pro-C5 was correlated to HVPG and liver function parameters. Furthermore, Pro-C5 was combined in a linear regression model. 

Plasma Pro-C5 correlated to HVPG, indocyanine green clearance, sustained vascular resistance and mean arterial pressure (r = -0.68-0.33, p < 0.0001). A multiple regression analysis including Pro-C5, alanine aminotransferase, bilirubin and model for end-stage liver disease (MELD) improved the correlation to HVPG (r = 0.74, p < 0.0001). Plasma Pro-C5 was positively or negatively correlated to a number of routine liver function markers and MELD score (r = 0.27-0.68; p < 0.05-0.0001). Furthermore, plasma Pro-C5 could clearly separate patients with a HVPG

Plasma Pro-C5 reflects liver hemodynamics, liver function, disease stage and clinically significant portal hypertension (PH). A multimarker model in combination with clinical scores predicted HVPG and separated clinical relevant HVPG thresholds. Plasma Pro-C5 may be suitable for the noninvasive evaluation of PH in patients with cirrhosis.

Therapeutic area
Cancer, Hepatic diseases, Respiratory diseases, Rheumatology

Biomarker panels
Lung Fibrosis, Bridging Fibrosis, Liver Fibrosis Outcome, Tissue Fibrosis, Fibrosis / Fibroblasts

Function
ECM formation

Alternative names
PROC5

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