Risk analysis of inter-species reassortment through a Rift Valley fever phlebovirus MP-12 vaccine strain.
Rift Valley fever (RVF) is a mosquito-borne zoonotic disease endemic to Africa and the Arabian Peninsula. The causative agent, Rift Valley fever phlebovirus (RVFV), belongs to the genus Phlebovirus in the family Phenuiviridae and causes high rates of abortions in ruminants, and hemorrhagic fever, en...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2017-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5604998?pdf=render |
| _version_ | 1818765389303119872 |
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| author | Hoai J Ly Nandadeva Lokugamage Shoko Nishiyama Tetsuro Ikegami |
| author_facet | Hoai J Ly Nandadeva Lokugamage Shoko Nishiyama Tetsuro Ikegami |
| author_sort | Hoai J Ly |
| collection | DOAJ |
| description | Rift Valley fever (RVF) is a mosquito-borne zoonotic disease endemic to Africa and the Arabian Peninsula. The causative agent, Rift Valley fever phlebovirus (RVFV), belongs to the genus Phlebovirus in the family Phenuiviridae and causes high rates of abortions in ruminants, and hemorrhagic fever, encephalitis, or blindness in humans. Viral maintenance by mosquito vectors has led to sporadic RVF outbreaks in ruminants and humans in endemic countries, and effective vaccination of animals and humans may minimize the impact of this disease. A live-attenuated MP-12 vaccine strain is one of the best characterized RVFV strains, and was conditionally approved as a veterinary vaccine in the U.S. Live-attenuated RVF vaccines including MP-12 strain may form reassortant strains with other bunyavirus species. This study thus aimed to characterize the occurrence of genetic reassortment between the MP-12 strain and bunyavirus species closely related to RVFV. The Arumowot virus (AMTV) and Gouleako goukovirus (GOLV), are transmitted by mosquitoes in Africa. The results of this study showed that GOLV does not form detectable reassortant strains with the MP-12 strain in co-infected C6/36 cells. The AMTV also did not form any reassortant strains with MP-12 strain in co-infected C6/36 cells, due to the incompatibility among N, L, and Gn/Gc proteins. A lack of reassortant formation could be due to a functional incompatibility of N and L proteins derived from heterologous species, and due to a lack of packaging via heterologous Gn/Gc proteins. The MP-12 strain did, however, randomly exchange L-, M-, and S-segments with a genetic variant strain, rMP12-GM50, in culture cells. The MP-12 strain is thus unlikely to form any reassortant strains with AMTV or GOLV in nature. |
| first_indexed | 2024-12-18T08:17:19Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-18T08:17:19Z |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-2380ef1257f548e5b00e41747f6ceee42022-12-21T21:14:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01129e018519410.1371/journal.pone.0185194Risk analysis of inter-species reassortment through a Rift Valley fever phlebovirus MP-12 vaccine strain.Hoai J LyNandadeva LokugamageShoko NishiyamaTetsuro IkegamiRift Valley fever (RVF) is a mosquito-borne zoonotic disease endemic to Africa and the Arabian Peninsula. The causative agent, Rift Valley fever phlebovirus (RVFV), belongs to the genus Phlebovirus in the family Phenuiviridae and causes high rates of abortions in ruminants, and hemorrhagic fever, encephalitis, or blindness in humans. Viral maintenance by mosquito vectors has led to sporadic RVF outbreaks in ruminants and humans in endemic countries, and effective vaccination of animals and humans may minimize the impact of this disease. A live-attenuated MP-12 vaccine strain is one of the best characterized RVFV strains, and was conditionally approved as a veterinary vaccine in the U.S. Live-attenuated RVF vaccines including MP-12 strain may form reassortant strains with other bunyavirus species. This study thus aimed to characterize the occurrence of genetic reassortment between the MP-12 strain and bunyavirus species closely related to RVFV. The Arumowot virus (AMTV) and Gouleako goukovirus (GOLV), are transmitted by mosquitoes in Africa. The results of this study showed that GOLV does not form detectable reassortant strains with the MP-12 strain in co-infected C6/36 cells. The AMTV also did not form any reassortant strains with MP-12 strain in co-infected C6/36 cells, due to the incompatibility among N, L, and Gn/Gc proteins. A lack of reassortant formation could be due to a functional incompatibility of N and L proteins derived from heterologous species, and due to a lack of packaging via heterologous Gn/Gc proteins. The MP-12 strain did, however, randomly exchange L-, M-, and S-segments with a genetic variant strain, rMP12-GM50, in culture cells. The MP-12 strain is thus unlikely to form any reassortant strains with AMTV or GOLV in nature.http://europepmc.org/articles/PMC5604998?pdf=render |
| spellingShingle | Hoai J Ly Nandadeva Lokugamage Shoko Nishiyama Tetsuro Ikegami Risk analysis of inter-species reassortment through a Rift Valley fever phlebovirus MP-12 vaccine strain. PLoS ONE |
| title | Risk analysis of inter-species reassortment through a Rift Valley fever phlebovirus MP-12 vaccine strain. |
| title_full | Risk analysis of inter-species reassortment through a Rift Valley fever phlebovirus MP-12 vaccine strain. |
| title_fullStr | Risk analysis of inter-species reassortment through a Rift Valley fever phlebovirus MP-12 vaccine strain. |
| title_full_unstemmed | Risk analysis of inter-species reassortment through a Rift Valley fever phlebovirus MP-12 vaccine strain. |
| title_short | Risk analysis of inter-species reassortment through a Rift Valley fever phlebovirus MP-12 vaccine strain. |
| title_sort | risk analysis of inter species reassortment through a rift valley fever phlebovirus mp 12 vaccine strain |
| url | http://europepmc.org/articles/PMC5604998?pdf=render |
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