Serveur d'exploration MERS

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Replication and shedding of MERS-CoV in Jamaican fruit bats (Artibeus jamaicensis)

Identifieur interne : 001043 ( Main/Exploration ); précédent : 001042; suivant : 001044

Replication and shedding of MERS-CoV in Jamaican fruit bats (Artibeus jamaicensis)

Auteurs : Vincent J. Munster ; Danielle R. Adney ; Neeltje Van Doremalen ; Vienna R. Brown ; Kerri L. Miazgowicz ; Shauna Milne-Price ; Trenton Bushmaker ; Rebecca Rosenke ; Dana Scott ; Ann Hawkinson ; Emmie De Wit ; Tony Schountz ; Richard A. Bowen

Source :

RBID : PMC:4761889

Descripteurs français

English descriptors

Abstract

The emergence of Middle East respiratory syndrome coronavirus (MERS-CoV) highlights the zoonotic potential of Betacoronaviruses. Investigations into the origin of MERS-CoV have focused on two potential reservoirs: bats and camels. Here, we investigated the role of bats as a potential reservoir for MERS-CoV. In vitro, the MERS-CoV spike glycoprotein interacted with Jamaican fruit bat (Artibeus jamaicensis) dipeptidyl peptidase 4 (DPP4) receptor and MERS-CoV replicated efficiently in Jamaican fruit bat cells, suggesting there is no restriction at the receptor or cellular level for MERS-CoV. To shed light on the intrinsic host-virus relationship, we inoculated 10 Jamaican fruit bats with MERS-CoV. Although all bats showed evidence of infection, none of the bats showed clinical signs of disease. Virus shedding was detected in the respiratory and intestinal tract for up to 9 days. MERS-CoV replicated transiently in the respiratory and, to a lesser extent, the intestinal tracts and internal organs; with limited histopathological changes observed only in the lungs. Analysis of the innate gene expression in the lungs showed a moderate, transient induction of expression. Our results indicate that MERS-CoV maintains the ability to replicate in bats without clinical signs of disease, supporting the general hypothesis of bats as ancestral reservoirs for MERS-CoV.

Electronic supplementary material

The online version of this article (doi:10.1038/srep21878) contains supplementary material, which is available to authorized users.


Url:
DOI: 10.1038/srep21878
PubMed: 26899616
PubMed Central: 4761889


Affiliations:


Links toward previous steps (curation, corpus...)


Le document en format XML

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<term>Infections à coronavirus (virologie)</term>
<term>Poumon (anatomopathologie)</term>
<term>Poumon (virologie)</term>
<term>Récepteurs viraux (métabolisme)</term>
<term>Réplication virale</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="blood" xml:lang="en">
<term>Antibodies, Viral</term>
</keywords>
<keywords scheme="MESH" qualifier="anatomopathologie" xml:lang="fr">
<term>Poumon</term>
</keywords>
<keywords scheme="MESH" qualifier="blood" xml:lang="en">
<term>Coronavirus Infections</term>
</keywords>
<keywords scheme="MESH" qualifier="immunologie" xml:lang="fr">
<term>Infections à coronavirus</term>
</keywords>
<keywords scheme="MESH" qualifier="immunology" xml:lang="en">
<term>Coronavirus Infections</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en">
<term>Dipeptidyl Peptidase 4</term>
<term>Receptors, Virus</term>
</keywords>
<keywords scheme="MESH" qualifier="médecine vétérinaire" xml:lang="fr">
<term>Infections à coronavirus</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr">
<term>Dipeptidyl peptidase 4</term>
<term>Récepteurs viraux</term>
</keywords>
<keywords scheme="MESH" qualifier="pathology" xml:lang="en">
<term>Lung</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr">
<term>Coronavirus du syndrome respiratoire du Moyen-Orient</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en">
<term>Middle East Respiratory Syndrome Coronavirus</term>
</keywords>
<keywords scheme="MESH" qualifier="sang" xml:lang="fr">
<term>Anticorps antiviraux</term>
<term>Infections à coronavirus</term>
</keywords>
<keywords scheme="MESH" qualifier="veterinary" xml:lang="en">
<term>Coronavirus Infections</term>
</keywords>
<keywords scheme="MESH" qualifier="virologie" xml:lang="fr">
<term>Chiroptera</term>
<term>Infections à coronavirus</term>
<term>Poumon</term>
</keywords>
<keywords scheme="MESH" qualifier="virology" xml:lang="en">
<term>Chiroptera</term>
<term>Coronavirus Infections</term>
<term>Lung</term>
</keywords>
<keywords scheme="MESH" xml:lang="en">
<term>Animals</term>
<term>Chlorocebus aethiops</term>
<term>Cricetinae</term>
<term>Immunity, Innate</term>
<term>Vero Cells</term>
<term>Viral Load</term>
<term>Virus Replication</term>
<term>Virus Shedding</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Animaux</term>
<term>Cellules Vero</term>
<term>Charge virale</term>
<term>Cricetinae</term>
<term>Excrétion virale</term>
<term>Immunité innée</term>
<term>Réplication virale</term>
</keywords>
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<front>
<div type="abstract" xml:lang="en">
<p>The emergence of Middle East respiratory syndrome coronavirus (MERS-CoV) highlights the zoonotic potential of
<italic>Betacoronaviruses</italic>
. Investigations into the origin of MERS-CoV have focused on two potential reservoirs: bats and camels. Here, we investigated the role of bats as a potential reservoir for MERS-CoV.
<italic>In vitro</italic>
, the MERS-CoV spike glycoprotein interacted with Jamaican fruit bat (
<italic>Artibeus jamaicensis</italic>
) dipeptidyl peptidase 4 (DPP4) receptor and MERS-CoV replicated efficiently in Jamaican fruit bat cells, suggesting there is no restriction at the receptor or cellular level for MERS-CoV. To shed light on the intrinsic host-virus relationship, we inoculated 10 Jamaican fruit bats with MERS-CoV. Although all bats showed evidence of infection, none of the bats showed clinical signs of disease. Virus shedding was detected in the respiratory and intestinal tract for up to 9 days. MERS-CoV replicated transiently in the respiratory and, to a lesser extent, the intestinal tracts and internal organs; with limited histopathological changes observed only in the lungs. Analysis of the
<italic>innate</italic>
gene expression in the lungs showed a moderate, transient induction of expression. Our results indicate that MERS-CoV maintains the ability to replicate in bats without clinical signs of disease, supporting the general hypothesis of bats as ancestral reservoirs for MERS-CoV.</p>
<sec>
<title>Electronic supplementary material</title>
<p>The online version of this article (doi:10.1038/srep21878) contains supplementary material, which is available to authorized users.</p>
</sec>
</div>
</front>
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