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- Title
Myelin Oligodendrocyte Glycoprotein-Independent Rubella Infection of Keratinocytes and Resistance of First-Trimester Trophoblast Cells to Rubella Virus In Vitro.
- Authors
Trinh, Quang Duy; Pham, Ngan Thi Kim; Takada, Kazuhide; Komine-Aizawa, Shihoko; Hayakawa, Satoshi
- Abstract
Rubella virus (RuV), which belongs to the family Togaviridae and genus Rubivirus, causes systemic infection in children and young adults and congenital rubella syndrome in developing fetuses if the infection occurs during pregnancy. The mechanisms of fetal infection by RuV are not completely understood. Myelin oligodendrocyte glycoprotein (MOG) is reported to be a cellular receptor for RuV; however, it is mainly expressed in the central nervous system. Therefore, it is thought that other receptors are also responsible for virus entry into susceptible cells. In this study, we found that first-trimester trophoblast cells were resistant to RuV. In addition, we showed that HaCaT cells (an immortalized keratinocyte cell line) that did not express MOG on their surface were infected with RuV. This finding is one of the first demonstrations of MOG-independent RuV infection of susceptible host cells and suggests that it is important to continue searching for alternative RuV receptors. In addition, this study reports the resistance of first-trimester trophoblast cells to RuV and suggests that utilizing an epithelial-mesenchymal transition approach to study the mechanisms of transplacental vertical RuV infection.
- Subjects
RUBELLA virus; KERATINOCYTES; FIRST trimester of pregnancy; MYELIN; TROPHOBLAST; GLYCOPROTEINS
- Publication
Viruses (1999-4915), 2018, Vol 10, Issue 1, p23
- ISSN
1999-4915
- Publication type
Article
- DOI
10.3390/v10010023