Relationship of serum fibrosis markers with liver fibrosis stage and collagen content in patients with advanced chronic hepatitis C.
This study determined the utility of a panel of serum fibrosis markers along with routine laboratory tests in estimating the likelihood of histological cirrhosis in a cohort of prior nonresponders with chronic hepatitis C. The relationship between serum markers and quantitative hepatic collagen content was also determined. Liver biopsy samples from 513 subjects enrolled in the HALT-C trial were assigned Ishak fibrosis scores. The collagen content of 386 sirius-red stained, nonfragmented biopsy samples was quantified using computerized morphometry. Serum tissue inhibitor of matrix metalloproteinase-1 (TIMP-1), amino-terminal peptide of type III procollagen (PIIINP), hyaluronic acid (HA), and YKL-40 levels were determined using commercially available assays.Sixty-two percent of patients had noncirrhotic fibrosis (Ishak stage 2-4) whereas 38% had cirrhosis (Ishak stage 5,6). Multivariate analysis identified a 3-variable model (HA, TIMP-1, and platelet count) that had an area under the receiver operating curve (AUROC) of 0.81 for estimating the presence of cirrhosis. This model was significantly better than that derived from the cirrhosis discriminant score (AUROC 0.70), the AST-to-platelet ratio (AUROC 0.73), and a prior model developed in HALT-C patients (AUROC 0.79). Multivariate analysis demonstrated that the serum fibrosis markers correlated substantially better with Ishak fibrosis scores than with the log hepatic collagen content (AUROC 0.84 versus 0.72).


CONCLUSIONS
A 3-variable model consisting of serum HA, TIMP-1, and platelet count was better than other published models in identifying cirrhosis in HALT-C Trial subjects. The stronger correlation of the serum markers with Ishak scores suggests that serum fibrosis markers reflect the pattern of fibrosis more closely than the quantity of hepatic collagen.
Fontana
Robert J
RJ
Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.
Goodman
Zachary D
ZD
Dienstag
Jules L
JL
Bonkovsky
Herbert L
HL
Naishadham
Deepa
D
Sterling
Richard K
RK
Su
Grace L
GL
Ghosh
Mita
M
Wright
Elizabeth C
EC
D054392:Adipokines; D015415:Biomarkers / Q000097:blood; D001706:Biopsy; D000071451:Chitinase-3-Like Protein 1; D003094:Collagen / Q000032:analysis*; D003201:Computers; D005260:Female; D006023:Glycoproteins / Q000097:blood; D019698:Hepatitis C, Chronic / Q000150:complications* / Q000473:pathology; D006801:Humans; D006820:Hyaluronic Acid / Q000097:blood*; D037102:Lectins; D008103:Liver Cirrhosis / Q000175:diagnosis* / Q000473:pathology / Q000821:virology; D008297:Male; D008875:Middle Aged; D010446:Peptide Fragments / Q000097:blood; D010976:Platelet Count; D011347:Procollagen / Q000097:blood; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000097:blood*
D054392:Adipokines; D015415:Biomarkers; C084533:CHI3L1 protein, human; D000071451:Chitinase-3-Like Protein 1; D006023:Glycoproteins; D037102:Lectins; D010446:Peptide Fragments; D011347:Procollagen; D019715:Tissue Inhibitor of Metalloproteinase-1; C041876:procollagen Type III-N-terminal peptide; D006820:Hyaluronic Acid; D003094:Collagen