Related Experiment Video
Updated: Aug 11, 2026

Humanized NOD/SCID/IL2rγnull (hu-NSG) Mouse Model for HIV Replication and Latency Studies
Published on: January 7, 2019
Spontaneous remission of chronic hepatitis C in children
T Fujisawa1, H Komatsu, A Inui
1Department of Paediatrics, National Defense Medical College, Tokorozawa-City, Saitama, Japan.
Insights
Spontaneous remission of chronic hepatitis C in children is rare (8.3%). Key indicators include low hepatitis C virus (HCV) RNA levels and a decrease in anti-HCV core antibodies, but liver HCV RNA testing is crucial for confirmation.
Area of Science:
- Pediatrics
- Hepatology
- Virology
Background:
- Chronic hepatitis C (HCV) affects children, with most cases linked to blood transfusions.
- Long-term monitoring is essential to understand the natural course of pediatric HCV.
- Elevated alanine aminotransferase (ALT) levels indicate ongoing liver inflammation in chronic cases.
Observation:
- A 3-year longitudinal study monitored 48 children with chronic hepatitis C.
- All children tested positive for anti-HCV and serum HCV RNA, with elevated ALT levels for over 1.5 years.
- Spontaneous remission was observed in 8.3% of patients, defined by sustained biochemical remission and HCV RNA clearance.
Findings:
- Hepatitis C virus RNA was detectable in the liver of 25% of patients even after serum clearance.
- A low serum titer of HCV RNA and a significant decrease in antibody to HCV core antigen (anti-HCV core) were associated with spontaneous remission.
- Serum HCV RNA reappeared in some patients where anti-HCV core levels did not significantly decrease.
Implications:
- Intrahepatic HCV RNA assessment is vital for confirming complete remission in pediatric chronic hepatitis C.
- Identifying biomarkers like low HCV RNA titer and decreasing anti-HCV core may predict remission in children.
- Further research into the mechanisms of spontaneous viral clearance in pediatric HCV is warranted.
Unlabelled:
The clinical course of 48 children with chronic hepatitis C (33 boys, 15 girls; mean age: 12.2 years) was monitored for more than 3 years to clarify its natural course. All patients were positive for the second-generation antibody to hepatitis C virus (anti-HCV) and for serum hepatitis C virus (HCV) RNA. All but one patient had a history of blood transfusion. Serum levels of alanine aminotransferase (ALT) had been abnormal for more than 1.5 years. Spontaneous remission defined as a biochemical remission lasting more than 1 year in association with the disappearance of serum HCV RNA, occurred in 4 (8.3%), however, in 25%, HCV RNA was still detectable in the liver even after its disappearance from serum. In this patient, the level of antibody to HCV core antigen (anti-HCV core) did not decrease significantly and serum HCV RNA eventually reappeared. The serum titre of HCV RNA in the 4 children with spontaneous remission was lower than in the remaining 44 children. Spontaneous remission may occur in children with chronic hepatitis C in whom the serum titre of HCV RNA is low and serum level of anti-HCV core decreases significantly. Assessment of the intrahepatic HCV RNA is necessary to confirm complete remission.
Conclusion:
A low serum titre of HCV RNA and a significant decrease in the serum titre of anti-HCV core were associated with spontaneous remission in children with chronic hepatitis C. Intrahepatic HCV RNA assessment is necessary to confirm complete remission.
More Related Videos
Related Concept Videos
Retrovirus Life Cycles
Hepatitis
Viral Hepatitis I: Introduction

