Neonatal Inflammatory Profiles Associated With Perinatally Acquired Hepatitis C Viral Infection

Area of Science:

• Immunology
• Hepatology
• Pediatrics

Background:

• Hepatitis C virus (HCV) can be transmitted from mother to infant during pregnancy or delivery.
• Understanding the immunological consequences of perinatal HCV infection in infants is crucial for early diagnosis and management.
• Biomarkers indicating immune responses or dysfunction in infants exposed to HCV are needed.

Purpose of the Study:

• To investigate plasma cytokine and chemokine profiles in infants with in utero exposure to Hepatitis C virus.
• To identify potential biomarkers associated with perinatal Hepatitis C virus transmission and infection in early infancy.

Main Methods:

• A nested case-control study design was employed.
• Plasma samples were collected from infants at 2 months of age.
• Twenty-one plasma cytokines/chemokines were measured, comparing 11 infants with confirmed perinatal HCV transmission to 11 matched controls without HCV exposure.

Main Results:

• Six out of 21 assessed biomarkers were detectable in infant plasma.
• Infants with perinatal HCV infection exhibited significantly higher plasma levels of programmed death-ligand 1 (PD-L1).
• PD-L1 is a proposed marker associated with T-cell exhaustion.

Conclusions:

• Elevated PD-L1 in infants with perinatal Hepatitis C infection suggests a potential role in immune modulation or T-cell exhaustion.
• Further research is warranted to evaluate the significance of PD-L1 as a biomarker in infants with perinatal HCV infection.
• These findings may contribute to understanding the infant immune response to perinatal Hepatitis C virus exposure.