Molecular Aspects of HTLV-1 Entry: Functional Domains of the HTLV-1 Surface Subunit (SU) and Their Relationships to the Entry Receptors
2011

Understanding How HTLV-1 Enters Cells

publication Evidence: moderate

Author Information

Author(s): Jones Kathryn S., Lambert Sophie, Bouttier Manuella, Bénit Laurence, Ruscetti Frank W., Hermine Olivier, Pique Claudine

Primary Institution: Basic Science Program, SAIC-Frederick, Inc., NCI-Frederick, Maryland, USA

Hypothesis

What are the functional domains of the HTLV-1 surface subunit and how do they relate to entry receptors?

Conclusion

HTLV-1 entry into cells involves a multi-receptor model with interactions between the viral envelope protein and specific host cell receptors.

Supporting Evidence

  • HTLV-1 entry requires interactions with GLUT1, NRP-1, and HSPGs.
  • NRP-1 and GLUT1 form a stable complex with the HTLV-1 surface subunit.
  • HSPGs are essential for the initial binding of HTLV-1 to target cells.
  • Different HTLV viruses may use different receptor complexes for entry.

Takeaway

HTLV-1 uses three helpers to get into cells: one helps it stick, another helps it grab on, and the last one helps it get inside.

Methodology

The review summarizes previous studies on HTLV-1 entry mechanisms and receptor interactions.

Limitations

The review does not provide new experimental data but synthesizes existing knowledge.

Digital Object Identifier (DOI)

10.3390/v3060794

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