Mother-to-child transmission is the major cause of chronic hepatitis B virus (HBV) infection. This study shows that an unconventional protein secretion pathway that depends on autophagy may be hijacked by HBV to complete the process of intracellular transport. In HBV-infected trophoblasts, AnxA2-S100A10-mediated exocytosis may result in HBV intrauterine transmission.
- Xiaoxia Bai
- Jinshi Ran
- Yongmei Xi