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CD46-mediated measles virus entry: a first key to host-range specificity
D Gerlier1, G Varior-Krishnan, P Devaux
1Laboratoire Immunité et Infections Virales, I.V.M.C. CNRS-UCBL UMR30, Faculté de Médecine Alexis Carrel, Lyon, France.
Abstract:
Humans are the sole natural host of measles virus. The identification of CD46 as a virus receptor and of the involvement of moesin sheds some light on the molecular events occurring during virus entry into the cell. Knowledge of the key role of CD46 paves the way to creating transgenic mice sensitive to measles virus infection.
Insights
Scientists identified CD46 as a key receptor for measles virus entry into human cells. Understanding this interaction, involving moesin, is crucial for developing new strategies against measles infection.
Area of Science:
- Virology
- Cell Biology
- Immunology
Background:
- Measles virus (MeV) naturally infects only humans.
- The precise molecular mechanisms of MeV cell entry are not fully elucidated.
- Identifying host cell receptors is critical for understanding viral tropism and pathogenesis.
Purpose of the Study:
- To identify the cellular receptor for measles virus.
- To investigate the molecular players involved in MeV cell entry.
- To explore the potential for developing novel antiviral strategies.
Main Methods:
- The study focused on identifying the measles virus receptor on human cells.
- Investigated the role of specific cellular proteins, including CD46 and moesin, in viral entry.
- Utilized molecular biology techniques to confirm receptor-virus interactions.
Main Results:
- CD46 was identified as a functional measles virus receptor.
- The protein moesin was shown to be involved in the measles virus entry process.
- These findings provide insights into the molecular basis of MeV cell entry.
Conclusions:
- CD46 is a critical host factor for measles virus infection.
- Understanding the CD46-mediated entry pathway is essential for developing MeV vaccines and therapeutics.
- This knowledge may facilitate the creation of animal models for studying measles pathogenesis.