Characterization of Oral Immunity in Cases and Close Household Contacts Exposed to Andes Orthohantavirus (ANDV)

dc.contributor.authorMartinez-Valdebenito, Constanza
dc.contributor.authorAndaur, Camila
dc.contributor.authorAngulo, Jenniffer
dc.contributor.authorHenriquez, Carolina
dc.contributor.authorFerres, Marcela
dc.contributor.authorLe Corre, Nicole
dc.date.accessioned2025-01-23T19:47:14Z
dc.date.available2025-01-23T19:47:14Z
dc.date.issued2020
dc.description.abstractBackground: Andes orthohantavirus (ANDV) is the sole etiologic agent of Hantavirus Cardiopulmonary Syndrome in Chile and, until now, the only Hantavirus known to be transmitted by person-to-person route. The main risk of person-to-person transmission is to be a sexual partner of an index case, and deep kissing the main mechanism of infection. Experimental reports suggest that ANDV infection can be inhibited by some saliva components. Therefore, some host factors like saliva quality, could help to explain why some individuals do not become infected even though their exposure to the virus is high.
dc.description.abstractAim: To compare some saliva components, such cytokines and mucins, between ANDV-infected cases (exposed-sick), their close household contacts (exposed-not sick) and healthy control not exposed.
dc.description.abstractMethods: Sixty-nine confirmed ANDV-infected cases, 76 close household contacts exposed to ANDV but not infected (CHC) and 39 healthy control not exposed (HCNE). The following components were measured in saliva: secretory immunoglobulin A (sIgA) by ELISA; cytokines (IL1 beta, IL12p70, TNF alpha, INFy, IL10, IL6, VEGF, IP10, and IL8) by Multiplex Assay and mucins MUC7 and MUC5B by Western Blotting.
dc.description.abstractResults: Among infected cases, CHC and HCNE analyzed 74, 45, and 33% were men, respectively (p <= 0.05). The average age for cases, CHC and HCNE was 37.7, 28.7, and 32 years, respectively (p <= 0.05). The average concentration of sIgA in infected cases was 4.846 mg/mL, higher than for CHC group, 0.333 mg/mL (p <= 0.05). For cytokines, significant differences were found comparing all groups for IFNy, IL12p70, and IL8. Among CHC group, there was a higher frequency of detection of MUC7 isoform (62.6%; 31/49) compared to ANDV-infected cases (40.5%; 17/42) (p < 0.05). Similarly, presence of MUC5B was higher among CHC groups (62.16%; 46/74) than in ANDV-infected cases (44.4%; 28/63) (p < 0.05).
dc.description.abstractConclusions: Three salivary components showed differences between infected cases and close household contacts (sIgA, cytokines, and mucins). These differences can be explained by the acute state of the disease in the ANDV-infected cases group. However, the differences in MUC5B and isoforms of MUC7 are not entirely explainable by the infection itself. This work represents a novel description of salivary components in the context of ANDV infection.
dc.fuente.origenWOS
dc.identifier.doi10.3389/fcimb.2020.557273
dc.identifier.issn2235-2988
dc.identifier.urihttps://doi.org/10.3389/fcimb.2020.557273
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100362
dc.identifier.wosidWOS:000589689200001
dc.language.isoen
dc.revistaFrontiers in cellular and infection microbiology
dc.rightsacceso restringido
dc.subjectHantavirus Andes
dc.subjectinnate immunity
dc.subjectsaliva
dc.subjectorthohantavirus
dc.subjectmucins
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleCharacterization of Oral Immunity in Cases and Close Household Contacts Exposed to Andes Orthohantavirus (ANDV)
dc.typeartículo
dc.volumen10
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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