title: Interferon (IFN)-gamma-inducible protein-10: association with histological results, viral kinetics, and outcome during treatment with pegylated IFN-alpha 2a and ribavirin for chronic hepatitis C virus infection.
abstract: BACKGROUND
  We investigated associations between interferon (IFN)-gamma-inducible protein (IP)-10 and liver histological results, viral kinetic response, and treatment outcome in patients infected with hepatitis C virus (HCV) genotypes 1-4.
  
  
  METHODS
  Plasma IP-10 was monitored before, during, and after treatment with pegylated IFN- alpha 2a and ribavirin in 265 HCV-infected patients.
  
  
  RESULTS
  In univariate analyses, a low baseline IP-10 level was significantly associated with low baseline viral load, rapid viral response (RVR), a sustained viral response (SVR), body mass index <25 kg/m2, and less-pronounced fibrosis, inflammation, and steatosis (for HCV genotypes other than 3). When the results of the univariate analyses were included in multivariate analyses, a low plasma IP-10 level, low baseline viral load, and genotype 2 or 3 infection were independent predictors of an RVR and SVR. IP-10 levels decreased 6 weeks into treatment and remained low in patients with an SVR. By contrast, plasma levels of IP-10 rebounded in patients who had detectable HCV RNA after the completion of treatment. Using cutoff IP-10 levels of 150 and 600 pg/mL for predicting an SVR in patients infected with HCV genotype 1 yielded a specificity and sensitivity of 81% and 95%, respectively.
  
  
  CONCLUSIONS
  Baseline IP-10 levels are predictive of the response to HCV treatment.
authors.affiliation: Department of Virology, University of Göteborg, Göteborg, Sweden.
authors.forename: Ana I
authors.initials: AI
authors.lastname: Romero
authors.forename: Martin
authors.initials: M
authors.lastname: Lagging
authors.forename: Johan
authors.initials: J
authors.lastname: Westin
authors.forename: Amar P
authors.initials: AP
authors.lastname: Dhillon
authors.forename: Lynn B
authors.initials: LB
authors.lastname: Dustin
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Pawlotsky
authors.forename: Avidan U
authors.initials: AU
authors.lastname: Neumann
authors.forename: Carlo
authors.initials: C
authors.lastname: Ferrari
authors.forename: Gabriele
authors.initials: G
authors.lastname: Missale
authors.forename: Bart L
authors.initials: BL
authors.lastname: Haagmans
authors.forename: Solko W
authors.initials: SW
authors.lastname: Schalm
authors.forename: Stefan
authors.initials: S
authors.lastname: Zeuzem
authors.forename: Francesco
authors.initials: F
authors.lastname: Negro
authors.forename: Elke
authors.initials: E
authors.lastname: Verheij-Hart
authors.forename: Kristoffer
authors.initials: K
authors.lastname: Hellstrand
mesh_terms: D000328:Adult; D000998:Antiviral Agents / Q000627:therapeutic use*; D054357:Chemokine CXCL10; D019743:Chemokines, CXC / Q000097:blood*; D004359:Drug Therapy, Combination; D005260:Female; D016174:Hepacivirus / Q000187:drug effects / Q000502:physiology*; D019698:Hepatitis C, Chronic / Q000188:drug therapy* / Q000821:virology; D006801:Humans; D000077190:Interferon alpha-2; D016898:Interferon-alpha / Q000627:therapeutic use; D007371:Interferon-gamma / Q000494:pharmacology*; D008099:Liver / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011092:Polyethylene Glycols / Q000627:therapeutic use; D012367:RNA, Viral / Q000097:blood; D011994:Recombinant Proteins; D012254:Ribavirin / Q000627:therapeutic use; D016896:Treatment Outcome; D019562:Viral Load
chemical_list: D000998:Antiviral Agents; D054357:Chemokine CXCL10; D019743:Chemokines, CXC; D000077190:Interferon alpha-2; D016898:Interferon-alpha; D012367:RNA, Viral; D011994:Recombinant Proteins; D011092:Polyethylene Glycols; D012254:Ribavirin; D007371:Interferon-gamma; C100416:peginterferon alfa-2a