Skip to main content
Log in

Preferential virological response to interferon-α 2a in patients with chronic hepatitis C infected by virus genotype 3a and exhibiting a lowγ-GT/ALT ratio

  • Liver: Cirrosis, Fibrosis, Portal Hypertension, And Transplantation
  • Published:
Digestive Diseases and Sciences Aims and scope Submit manuscript

Abstract

Hepatitis C virus infection causes acute and often chronic hepatitis. Therapy with interferon-α has been shown to induce remission of the inflammatory process within the liver and also elimination of the virus. However, only about 50% of treated patients respond in terms of at least a transient disappearance of viral RNA from the circulation below the limit of detection. In order to find prognostic factors for responsiveness, patients with chronic hepatitis C virus infection were analyzed for virus genotype and pretreatment biochemical liver parameters including serum AST, ALT, andγ-GT activities. Whereas the initial biochemical response to interferon-α 2a was found not to be related to virus genotype, the initial virological response was found to be closely related to infection by genotype 3a and to a low pretreatment ratio of serumγ-GT/ALT activity. These data confirm and extend the importance of virus genotype for responsiveness to interferon-α therapy and introduce an additional, host-specific parameter with a potential predictive value, namely the pretreatment ratio of serumγ-GT/ALT activity.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Choo Q-L, Kuo G, Weiner AJ, Overby LR, Bradley DW, Houghton M: Isolation of cDNA clone derived from a blood-borne non-A, non-B viral hepatitis genome. Science 244:359–362, 1989

    Google Scholar 

  2. Simmonds P: Variability of hepatitis C virus. Hepatology 14:570–583, 1995

    Google Scholar 

  3. Han JH, Houghton M: Group specific sequences and conserved secondary structures at the 3′ end of HCV genome and its implication for viral replication. NAR 20:3520, 1992

    Google Scholar 

  4. Isaacs A, Lindenmann J: Virus interference. I. The interferon. Proc R Soc London Ser B 147:258–267, 1957

    Google Scholar 

  5. Sen GC, Ransohoff RM: Interferon-induced antiviral actions and their regulation. Adv Virus Res 42:57–102, 1993

    Google Scholar 

  6. Lau JYN, Mizokami M, Ohno T, Diamond DA, Kniffen J, Davis GL: Discrepancy between biochemical and virological responses to interferon-α in chronic hepatitis C. Lancet 342:1208–1209, 1993

    Google Scholar 

  7. Pawlotsky J-M, Roudot-Thoraval F, Duvoux C, Dhumeaux D, Babany G: Virological and biochemical responses to interferon-α in chronic hepatitis C. Lancet 343:54–55, 1994

    Google Scholar 

  8. Lau JYN, Davis GL, Kniffen J, Qian K-P, Ureda MS, Chan CS, Mizokami M, Neuwald PD, Wilber JC: Significance of serum hepatitis C virus RNA levels in chronic hepatitis C. Lancet 341:1501–1504, 1993

    Google Scholar 

  9. Mahaney K, Tedeschi V, Maertens G, Di Bisceglie AM, Vergalla J, Hoofnagle JH, Sallie R: Genotypic analysis of hepatitis C virus in American patients. Hepatology 20:1405–1411, 1994

    Google Scholar 

  10. Tsubota A, Chayama K, Ikeda K, Yasuji A, Koida I, Saitoh S, Hashimoto M, Iwasaki S, Kobayashi M, Hiromitsu K: Factors predictive of response to interferon-α therapy in hepatitis C virus infection. Hepatology 19:1088–1094, 1994

    Google Scholar 

  11. Mita E, Hayashi N, Hagiwara H, Ueda K, Kanazawa Y, Kasahara A, Fusamoto H, Kamada T: Predicting interferon therapy efficacy from hepatitis C virus genotype and RNA titer. Dig Dis Sci 39:977–982, 1994

    Google Scholar 

  12. Yamada G, Takahashi M, Miyamoto R, Tsuji T, Yoshizawa H, Okamoto H: Prediction of interferon effect in chronic hepatitis C by both quantification and genotyping of HCV RNA. Dig Dis Sci 39:441, 1994

    Google Scholar 

  13. Kasahara A, Hayashi N, Hiramatsu N, Oshita M, Hagiwara H, Katayama K, Kato M, Masuzawa M, Yoshihara H, Kishida Y, Shimizu Y, Inoue A, Fusamoto H, Kamada T: Ability of prolonged interferon treatment to suppress relapse after cessation of therapy in patients with chronic hepatitis C: A multicenter randomized controlled trial. Hepatology 21:291–297, 1995

    Google Scholar 

  14. Hino K, Okuda M, Konishi T, Ishiko H, Okita K: Serial assay of hepatitis C virus RNA in serum for predicting response to interferon-α therapy. Dig Dis Sci 40:14–20, 1995

    Google Scholar 

  15. Mazzella G, Salzetta A, Casanova S, Morelli MC, Villanova N, Miniero R, Sottili S, Novelli V, Cipolla A, Festi D, Roda E: Treatment of chronic sporadic-type non-A, non-B hepatitis with lymphoblastoid interferon: gamma GT levels predictive for response. Dig Dis Sci 39:866–870, 1994

    Google Scholar 

  16. Pagliaro L, Craxi A, Cammaa C, Tine F, Di Marco V, Iacono OL, Almasio P: Interferon-α for chronic hepatitis C: An analysis of pretreatment clinical predictors of response. Hepatology 19:820–828, 1994

    Google Scholar 

  17. Davis GL: Prediction of response to interferon treatment of chronic hepatitis C. J Hepatol 21:1–3, 1994

    Google Scholar 

  18. Camps J, Garcia-Granero M, Riezu-Boj JI, Larrea E, de Alava E, Civeira MP, Castilla A, Prieto J: Prediction of sustained remission of chronic hepatitis C after a 12-month course of alfa interferon. J Hepatol 21:4–11, 1994

    Google Scholar 

  19. Serfaty L, Giral P, Loria A, Andreani T, Legendre C, Poupon R: Factors predictive of the response to interferon in patients with chronic hepatitis C. J Hepatol 21:12–17, 1994

    Google Scholar 

  20. Jouet P, Roudot-Thoraval F, Dhumeaux D, Metreau J-M, le groupe français pour l'étude du traitement des hépatites chroniques NANB/C: Comparative efficacy of interferon alfa in cirrhotic and noncirrhotic patients with non-A, non-B, C hepatitis. Gastroenterology 106:686–690, 1994

    Google Scholar 

  21. Desmet VJ, Gerber M, Hoofnagle JH, Manns M, Scheuer PJ: Classification of chronic hepatitis: Diagnosis, grading and staging. Hepatology 19:1513–1520, 1994

    Google Scholar 

  22. Okamoto H, Sugiyama Y, Okada S, Kurai K, Akahane Y, Sugai Y, Tanaka T, Sato K, Tsuda F, Miyakawa Y, Mayumi M: Typing hepatitis C virus by polymerase chain reaction with type-specific primer: Application to clinical surveys and tracing infectious sources. J Gen Virol 73:673–679, 1992

    Google Scholar 

  23. Okamoto H, Tokita H, Sakamoto M, Horikita M, Kojima M, Iizuka H, Mishiro S: Characterization of the genomic sequence of type V (or 3a) hepatitis C virus isolates and PCR primer for specific detection. J Gen Virol 74:2385–2390, 1993

    Google Scholar 

  24. Simmonds P, McOmish F, Yap PL, Chan S-W, Lin CK, Dusheiko G, Saeed AA, Holmes EC: Sequence variability in the 5′ non-coding region of hepatitis C virus: Identification of a new virus type and restrictions on sequence diversity. J Gen Virol 74:661–668, 1993

    Google Scholar 

  25. Kwok S, Higuchi R: Avoiding false positives with PCR. Nature 339:237–238, 1989

    Google Scholar 

  26. Sarkar G, Sommer SS: Shedding light on PCR contamination. Nature 343:27, 1990

    Google Scholar 

  27. Erlich HA, Gelfand D, Sninsky JJ: Recent advances in the polymerase chain reaction. Science 252:1643–1651, 1991

    Google Scholar 

  28. Goldberg DM: Structural, functional, and clinical aspects ofγ-glutamyltransferase. Crit Rev Clin Lab Sci 12:1–58, 1980

    Google Scholar 

  29. Silini E, Bono F, Cividini A, Cerino A, Bruno S, Rossi S, Belloni G, Brugnetti B, Civardi E, Salvaneschi L, Mondelli MU: Differential distribution of hepatitis C virus genotypes in patients with and without liver function abnormalities. Hepatology 21:285–290, 1995

    Google Scholar 

  30. Kobayashi Y, Watanabe S, Konishi M, Yokoi M, Kakehashi R, Kaito M, Kondo M, Hayashi Y, Jomori T, Suzuki S: Quantitation and typing of serum hepatitis C virus RNA in patients with chronic hepatitis C treated with interferon-β. Hepatology 18:1319–1325, 1993

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Mihm, S., Hartmann, H., Fayyazi, A. et al. Preferential virological response to interferon-α 2a in patients with chronic hepatitis C infected by virus genotype 3a and exhibiting a lowγ-GT/ALT ratio. Digest Dis Sci 41, 1256–1264 (1996). https://doi.org/10.1007/BF02088246

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02088246

Key words

Navigation