Logo image
Middle East Respiratory Syndrome Coronavirus Causes Multiple Organ Damage and Lethal Disease in Mice Transgenic for Human Dipeptidyl Peptidase 4
Journal article   Open access   Peer reviewed

Middle East Respiratory Syndrome Coronavirus Causes Multiple Organ Damage and Lethal Disease in Mice Transgenic for Human Dipeptidyl Peptidase 4

Kun Li, Christine Wohlford-Lenane, Stanley Perlman, Jincun Zhao, Alexander K Jewell, Leah R Reznikov, Katherine N Gibson-Corley, David K Meyerholz and Paul B McCray Jr
The Journal of infectious diseases, Vol.213(5), pp.712-722
03/01/2016
DOI: 10.1093/infdis/jiv499
PMCID: PMC4747621
PMID: 26486634
url
https://doi.org/10.1093/infdis/jiv499View
Published (Version of record) Open Access

Abstract

Middle East respiratory syndrome coronavirus (MERS-CoV) causes life-threatening disease. Dipeptidyl peptidase 4 (DPP4) is the receptor for cell binding and entry. There is a need for small-animal models of MERS, but mice are not susceptible to MERS because murine dpp4 does not serve as a receptor. We developed transgenic mice expressing human DPP4 (hDPP4) under the control of the surfactant protein C promoter or cytokeratin 18 promoter that are susceptible to infection with MERS-CoV. Notably, mice expressing hDPP4 with the cytokeratin 18 promoter developed progressive, uniformly fatal disease following intranasal inoculation. High virus titers were present in lung and brain tissues 2 and 6 days after infection, respectively. MERS-CoV-infected lungs revealed mononuclear cell infiltration, alveolar edema, and microvascular thrombosis, with airways generally unaffected. Brain disease was observed, with the greatest involvement noted in the thalamus and brain stem. Animals immunized with a vaccine candidate were uniformly protected from lethal infection. These new mouse models of MERS-CoV should be useful for investigation of early disease mechanisms and therapeutic interventions.
Dipeptidyl Peptidase 4 - metabolism Central Nervous System Viral Diseases - mortality Humans Dipeptidyl Peptidase 4 - genetics Mice, Transgenic Coronavirus Infections - mortality Gene Expression Regulation, Enzymologic Central Nervous System Viral Diseases - virology Animals Coronavirus Infections - virology Coronavirus Infections - pathology Central Nervous System Viral Diseases - pathology Mice RNA, Viral - isolation & purification Middle East Respiratory Syndrome Coronavirus - physiology

Details

Logo image