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Open AccessArticle

A Single-Nucleotide Polymorphism of αVβ3 Integrin Is Associated with the Andes Virus Infection Susceptibility

1
Departamento de Enfermedades Infecciosas e Inmunologia Pediatricas, División de Pediatría, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
2
Laboratorio de Virología Molecular, Instituto Milenio de Inmunología e Inmunoterapia (IMII), Santiago 8330024, Chile
3
Facultad de Medicina, Center for Genetics and Genomics, Clínica Alemana Universidad del Desarrollo, Santiago 7650568, Chile
4
Departamento de Gastroenterologia, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
5
Facultad de Medicina Departamento de Salud Pública, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
6
University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
7
Departamento de Pediatria, Facultad de Medicina, Clínica Alemana Santiago, Universidad del Desarrollo, Santiago 7650568, Chile
*
Author to whom correspondence should be addressed.
Viruses 2019, 11(2), 169; https://doi.org/10.3390/v11020169
Received: 22 January 2019 / Revised: 11 February 2019 / Accepted: 15 February 2019 / Published: 20 February 2019
The Andes Orthohantavirus (ANDV), which causes the hantavirus cardiopulmonary syndrome, enters cells via integrins, and a change from leucine to proline at residue 33 in the PSI domain (L33P), impairs ANDV recognition. We assessed the association between this human polymorphism and ANDV infection. We defined susceptible and protective genotypes as “TT” (coding leucine) and “CC” (coding proline), respectively. TT was present at a rate of 89.2% (66/74) among the first cohort of ANDV cases and at 60% (63/105) among exposed close-household contacts, who remained uninfected (p < 0.05). The protective genotype (CC) was absent in all 85 ANDV cases, in both cohorts, and was present at 11.4% of the exposed close-household contacts who remained uninfected. Logistic regression modeling for risk of infection had an OR of 6.2–12.6 (p < 0.05) in the presence of TT and well-known ANDV risk activities. Moreover, an OR of 7.3 was obtained when the TT condition was analyzed for two groups exposed to the same environmental risk. Host genetic background was found to have an important role in ANDV infection susceptibility, in the studied population. View Full-Text
Keywords: ANDV; SNP; PSI domain; L33P; rs5918; Hantavirus ANDV; SNP; PSI domain; L33P; rs5918; Hantavirus
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Martínez-Valdebenito, C.; Angulo, J.; Le Corre, N.; Marco, C.; Vial, C.; Miquel, J.F.; Cerda, J.; Mertz, G.; Vial, P.; Lopez-Lastra, M.; Ferrés, M. A Single-Nucleotide Polymorphism of αVβ3 Integrin Is Associated with the Andes Virus Infection Susceptibility. Viruses 2019, 11, 169.

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