Transferrin Receptor 1 is a Cellular Receptor for New World Haemorrhagic Fever Arenaviruses
Authors
Affiliations
At least five arenaviruses cause viral haemorrhagic fevers in humans. Lassa virus, an Old World arenavirus, uses the cellular receptor alpha-dystroglycan to infect cells. Machupo, Guanarito, Junin and Sabia viruses are New World haemorrhagic fever viruses that do not use alpha-dystroglycan. Here we show a specific, high-affinity association between transferrin receptor 1 (TfR1) and the entry glycoprotein (GP) of Machupo virus. Expression of human TfR1, but not human transferrin receptor 2, in hamster cell lines markedly enhanced the infection of viruses pseudotyped with the GP of Machupo, Guanarito and Junin viruses, but not with those of Lassa or lymphocytic choriomeningitis viruses. An anti-TfR1 antibody efficiently inhibited the replication of Machupo, Guanarito, Junin and Sabia viruses, but not that of Lassa virus. Iron depletion of culture medium enhanced, and iron supplementation decreased, the efficiency of infection by Junin and Machupo but not Lassa pseudoviruses. These data indicate that TfR1 is a cellular receptor for New World haemorrhagic fever arenaviruses.
Neerukonda S, Vassell R, Lusvarghi S, Liu S, Akue A, Kukuruga M Microbiol Spectr. 2025; 13(3):e0280824.
PMID: 39873512 PMC: 11878054. DOI: 10.1128/spectrum.02808-24.
Kang Q, Li G, Wu Y, Wang S, Chen Z, Zai X Viruses. 2025; 16(12.
PMID: 39772257 PMC: 11680233. DOI: 10.3390/v16121951.
Cellular N-Myristoyl Transferases Are Required for Mammarenavirus Multiplication.
Witwit H, Betancourt C, Cubitt B, Khafaji R, Kowalski H, Jackson N Viruses. 2024; 16(9).
PMID: 39339839 PMC: 11436053. DOI: 10.3390/v16091362.
Characterization of bi-segmented and tri-segmented recombinant Pichinde virus particles.
Murphy H, Huang Q, Jensen J, Weber N, Mendonca L, Ly H J Virol. 2024; 98(10):e0079924.
PMID: 39264155 PMC: 11494906. DOI: 10.1128/jvi.00799-24.
The structure of the Lujo virus spike complex.
Eilon-Ashkenazy M, Cohen-Dvashi H, Borni S, Shaked R, Calinsky R, Levy Y Nat Commun. 2024; 15(1):7175.
PMID: 39169025 PMC: 11339409. DOI: 10.1038/s41467-024-51606-0.