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Pallarés HM, González López Ledesma MM, Oviedo-Rouco S, Castellano LA, Costa Navarro GS, Fernández-Alvarez AJ, D'Andreiz MJ, Aldas-Bulos VD, Alvarez DE, Bazzini AA, Gamarnik AV. Zika virus non-coding RNAs antagonize antiviral responses by PKR-mediated translational arrest. Nucleic Acids Res 2024:gkae507. [PMID: 38917323 DOI: 10.1093/nar/gkae507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 05/08/2024] [Accepted: 06/04/2024] [Indexed: 06/27/2024] Open
Abstract
Zika virus (ZIKV) is an emerging mosquito-borne flavivirus that causes severe outbreaks in human populations. ZIKV infection leads to the accumulation of small non-coding viral RNAs (known as sfRNAs) that are crucial for evasion of antiviral responses and for viral pathogenesis. However, the mechanistic understanding of how sfRNAs function remains incomplete. Here, we use recombinant ZIKVs and ribosome profiling of infected human cells to show that sfRNAs block translation of antiviral genes. Mechanistically, we demonstrate that specific RNA structures present in sfRNAs trigger PKR activation, which instead of limiting viral replication, enhances viral particle production. Although ZIKV infection induces mRNA expression of antiviral genes, translation efficiency of type I interferon and interferon stimulated genes were significantly downregulated by PKR activation. Our results reveal a novel viral adaptation mechanism mediated by sfRNAs, where ZIKV increases its fitness by repurposing the antiviral role of PKR into a proviral factor.
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Affiliation(s)
- Horacio M Pallarés
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires IIBBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
| | - María Mora González López Ledesma
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires IIBBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
| | - Santiago Oviedo-Rouco
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires IIBBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
| | | | - Guadalupe S Costa Navarro
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires IIBBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
| | - Ana J Fernández-Alvarez
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires IIBBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
| | - María Josefina D'Andreiz
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires IIBBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
| | | | - Diego E Alvarez
- Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín-CONICET, Buenos Aires, Argentina
| | - Ariel A Bazzini
- Stowers Institute for Medical Research, Kansas City, MO, USA
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
| | - Andrea V Gamarnik
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires IIBBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
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do Nascimento RM, Campolina TB, Chaves BA, Delgado JLF, Godoy RSM, Pimenta PFP, Secundino NFC. The influence of culture-dependent native microbiota in Zika virus infection in Aedes aegypti. Parasit Vectors 2022; 15:57. [PMID: 35177110 PMCID: PMC8851793 DOI: 10.1186/s13071-022-05160-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 01/10/2022] [Indexed: 01/26/2023] Open
Abstract
Background Emerging and re-emerging vector-borne diseases (VBDs) pose a recurring threat to tropical countries, mainly due to the abundance and distribution of the Aedes aegypti mosquito, which is a vector of the Zika, dengue, chikungunya, and yellow fever arboviruses. Methods Female 3–5 day-old Ae. aegypti were distributed into two experimental groups: group I—survey of cultivable bacteria; sucrose group: fed only on sucrose, i.e., non-blood-fed (UF); blood-fed group: (i) fed with non-infected blood (BF); (ii) fed with blood infected with the Zika virus (BZIKV); (iii) pretreated with penicillin/streptomycin (pen/strep), and fed with non-infected blood (TBF); (iv) pretreated with pen/strep and fed blood infected with ZIKV, i.e., gravid with developed ovaries, (TGZIKV); group II—experimental co-infections: bacteria genera isolated from the group fed on sucrose, i.e., non-blood-fed (UF). Results Using the cultivable method and the same mosquito colony and ZIKV strain described by in a previous work, our results reveled 11 isolates (Acinetobacter, Aeromonas, Cedecea, Cellulosimicrobium, Elizabethkingia, Enterobacter, Lysinibacillus, Pantoea, Pseudomonas, Serratia, and Staphylococcus). Enterobacter was present in all evaluated groups (i.e., UF, BF, BZIKV, TBF, and TGZIKV), whereas Elizabethkingia was present in the UF, BZIKV, and TBF groups. Pseudomonas was present in the BZIKV and TBF groups, whereas Staphylococcus was present in the TBF and TGZIKV groups. The only genera of bacteria that were found to be present in only one group were Aeromonas, Lysinibacillus, and Serratia (UF); Cedacea, Pantoea and Acinetobacter (BF); and Cellulosimicrobium (BZIKV). The mosquitoes co-infected with ZIKV plus the isolates group fed on sucrose (UF) showed interference in the outcome of infection. Conclusions We demonstrate that the distinct feeding aspects assessed herein influence the composition of bacterial diversity. In the co-infection, among ZIKV, Ae. aegypti and the bacterial isolates, the ZIKV/Lysinibacillus–Ae. aegypti had the lowest number of viral copies in the head-SG, which means that it negatively affects vector competence. However, when the saliva was analyzed after forced feeding, no virus was detected in the mosquito groups ZIKV/Lysinibacillus–Lu. longipalpis and Ae. aegypti; the combination of ZIKV/Serratia may interfere in salivation. This indicates that the combinations do not produce viable viruses and may have great potential as a method of biological control. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05160-7.
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Affiliation(s)
- Rêgila Mello do Nascimento
- Laboratorio de Entomologia Médica, Instituto René Rachou-FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil.,Instituto de Pesquisas Clínicas Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
| | - Thais Bonifácio Campolina
- Laboratorio de Entomologia Médica, Instituto René Rachou-FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil.,Programa de Pós-Graduação em Ciências da Saúde, IRR-FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil
| | - Barbara Aparecida Chaves
- Instituto de Pesquisas Clínicas Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | | | - Raquel Soares Maia Godoy
- Laboratorio de Entomologia Médica, Instituto René Rachou-FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil
| | - Paulo Filemon Paolucci Pimenta
- Laboratorio de Entomologia Médica, Instituto René Rachou-FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil.,Programa de Pós-Graduação em Ciências da Saúde, IRR-FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil
| | - Nagila Francinete Costa Secundino
- Laboratorio de Entomologia Médica, Instituto René Rachou-FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil. .,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil. .,Programa de Pós-Graduação em Ciências da Saúde, IRR-FIOCRUZ-Minas, Belo Horizonte, Minas Gerais, Brazil.
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Microbial Composition in Larval Water Enhances Aedes aegypti Development but Reduces Transmissibility of Zika Virus. mSphere 2021; 6:e0068721. [PMID: 34878293 PMCID: PMC8653847 DOI: 10.1128/msphere.00687-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Arthropod-borne viruses comprise a significant global disease burden. Surveillance and mitigation of arboviruses like Zika virus (ZIKV) require accurate estimates of transmissibility by vector mosquitoes. Although Aedes species mosquitoes are established as competent ZIKV vectors, differences in experimental protocols across studies prevent direct comparisons of relative transmissibility. An understudied factor complicating these comparisons is differential environmental microbiota exposures, where most vector competence studies use mosquitoes reared in laboratory tap water, which does not represent the microbial complexity of environmental water where wild larvae develop. We simulated natural larval development by rearing Californian Aedes aegypti larvae with microbes obtained from cemetery headstone water compared to conventional tap water. A. aegypti larvae reared in environmental cemetery water pupated 3 days faster and at higher rates. Mosquitoes reared in environmental water were less competent vectors of ZIKV than laboratory water-reared A. aegypti, as evidenced by significantly reduced infection and transmission rates. Microbiome comparisons of laboratory water- and environment water-reared mosquitoes and their rearing water showed significantly higher bacterial diversity in environment water. Despite this pattern, corresponding differences in bacterial diversity were not consistently observed between the respective adult mosquitoes. We also observed that the microbial compositions of adult mosquitoes differed more by whether they ingested a bloodmeal than by larval water type. Together, these results highlight the role of transient microbes in the larval environment in modulating A. aegypti vector competence for ZIKV. Laboratory vector competence likely overestimates the true transmissibility of arboviruses like ZIKV when conventional laboratory water is used for rearing. IMPORTANCE We observed that A. aegypti mosquitoes reared in water from cemetery headstones instead of the laboratory tap exhibited a reduced capacity to become infected with and transmit Zika virus. Water from the environment contained more bacterial species than tap water, but these bacteria were not consistently detected in adult mosquitoes. Our results suggest that rearing mosquito larvae in water collected from local environments as opposed to laboratory tap water, as is conventional, could provide a more realistic assessment of ZIKV vector competence since it better recapitulates the natural environment in which larvae develop. Given that laboratory vector competence is used to define the species to target for control, the use of environmental water to rear larvae could better approximate the microbial exposures of wild mosquitoes, lessening the potential for overestimating ZIKV transmission risk. These studies raise the question of whether rearing larvae in natural water sources also reduces vector competence for other mosquito-borne viruses.
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Bonica MB, Balcazar DE, Chuchuy A, Barneche JA, Torres C, Micieli MV. Detection of Flaviviral-Like DNA Sequences in Aedes aegypti (Diptera: Culicidae) Collected From Argentina. JOURNAL OF MEDICAL ENTOMOLOGY 2021; 58:2406-2411. [PMID: 33939805 DOI: 10.1093/jme/tjab073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Indexed: 06/12/2023]
Abstract
Diseases caused by flaviviruses are a major public health burden across the world. In the past decades, South America has suffered dengue epidemics, the re-emergence of yellow fever and St. Louis encephalitis viruses, and the introduction of West Nile and Zika viruses. Many insect-specific flaviviruses (ISFs) that cannot replicate in vertebrate cells have recently been described. In this study, we analyzed field-collected mosquito samples from six different ecoregions of Argentina to detect flaviviruses. We did not find any RNA belonging to pathogenic flaviviruses or ISFs in adults or immature stages. However, flaviviral-like DNA similar to flavivirus NS5 region was detected in 83-100% of Aedes aegypti (L.). Despite being previously described as an ancient element in the Ae. aegypti genome, the flaviviral-like DNA sequence was not detected in all Ae. aegypti samples and sequences obtained did not form a monophyletic group, possibly reflecting the genetic diversity of mosquito populations in Argentina.
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Affiliation(s)
- Melisa B Bonica
- Laboratorio de Insectos Vectores, Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT La Plata-CONICET), Universidad Nacional de La Plata (UNLP), La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Dario E Balcazar
- Laboratorio de Insectos Vectores, Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT La Plata-CONICET), Universidad Nacional de La Plata (UNLP), La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Ailen Chuchuy
- Laboratorio de Insectos Vectores, Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT La Plata-CONICET), Universidad Nacional de La Plata (UNLP), La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Jorge A Barneche
- Laboratorio de Insectos Vectores, Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT La Plata-CONICET), Universidad Nacional de La Plata (UNLP), La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Carolina Torres
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Instituto de Investigaciones en Bacteriología y Virología Molecular (IBaViM), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - María V Micieli
- Laboratorio de Insectos Vectores, Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT La Plata-CONICET), Universidad Nacional de La Plata (UNLP), La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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Vector competence of Aedes aegypti from Havana, Cuba, for dengue virus type 1, chikungunya, and Zika viruses. PLoS Negl Trop Dis 2020; 14:e0008941. [PMID: 33270652 PMCID: PMC7738162 DOI: 10.1371/journal.pntd.0008941] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 12/15/2020] [Accepted: 11/01/2020] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Like many countries from the Americas, Cuba is threatened by Aedes aegypti-associated arboviruses such as dengue (DENV), Zika (ZIKV), and chikungunya (CHIKV) viruses. Curiously, when CHIKV was actively circulating in the region in 2013-2014, no autochthonous transmission of this virus was detected in Havana, Cuba, despite the importation of chikungunya cases into this city. To investigate if the transmission ability of local mosquito populations could explain this epidemiological scenario, we evaluated for the first time the vector competence of two Ae. aegypti populations (Pasteur and Párraga) collected from Havana for dengue virus type 1 (DENV-1), CHIKV, and ZIKV. METHODOLOGY/PRINCIPAL FINDINGS Mosquito populations were fed separately using blood containing ZIKV, DENV-1, or CHIKV. Infection, dissemination, and transmission rates, were estimated at 3 (exclusively for CHIKV), 7, and 14 days post exposure (dpe) for each Ae. aegypti population-virus combination. Both mosquito populations were susceptible to DENV-1 and ZIKV, with viral infection and dissemination rates ranging from 24-97% and 6-67% respectively. In addition, CHIKV disseminated in both populations and was subsequently transmitted. Transmission rates were low (<30%) regardless of the mosquito population/virus combination and no ZIKV was detected in saliva of females from the Pasteur population at any dpe. CONCLUSIONS/SIGNIFICANCE Our study demonstrated the ability of Ae. aegypti from Cuba to transmit DENV, ZIKV, and CHIKV. These results, along with the widespread distribution and high abundance of this species in the urban settings throughout the island, highlight the importance of Ae. aegypti control and arbovirus surveillance to prevent future outbreaks.
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Queiroz JADS, Botelho-Souza LF, Nogueira-Lima FS, Rampazzo RDCP, Krieger MA, Zambenedetti MR, Marchini FK, Borghetti IA, Pereira DB, Salcedo JMV, Vieira DS, dos Santos ADO. Phylogenetic Characterization of Arboviruses in Patients Suffering from Acute Fever in Rondônia, Brazil. Viruses 2020; 12:v12080889. [PMID: 32823806 PMCID: PMC7472125 DOI: 10.3390/v12080889] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/31/2020] [Accepted: 08/02/2020] [Indexed: 12/13/2022] Open
Abstract
The purpose of the study was to classify, through phylogenetic analyses, the main arboviruses that have been isolated in the metropolitan region of Porto Velho, Rondônia, Brazil. Serum samples from patients with symptoms suggesting arboviruses were collected and tested by One Step RT-qPCR for Zika, Dengue (serotypes 1–4), Chikungunya, Mayaro and Oropouche viruses. Positive samples were amplified by conventional PCR and sequenced utilizing the Sanger method. The obtained sequences were aligned, and an evolutionary analysis was carried out using Bayesian inference. A total of 308 samples were tested. Of this total, 20 had a detectable viral load for Dengue, being detected DENV1 (18/20), co-infection DENV1 and DENV2 (1/20) and DENV4 (1/20). For Dengue serotype 3 and for the CHIKV, ZIKV, MAYV and OROV viruses, no individuals with a detectable viral load were found. A total of 9 of these samples were magnified by conventional PCR for sequencing. Of these, 6 were successfully sequenced and, according to the evolutionary profile, 5 corresponded to serotype DENV-1 genotype V, and 1 to serotype DENV-4 genotype II. In the study, we demonstrate co-circulation of the DENV-1 genotype V and the DENV-4 genotype II. Co-circulation of several DENV serotypes in the same city poses a risk to the population and is correlated with the increase of the most severe forms of the disease. Similarly, co-circulation of genetically distinct DENV and the occurrence of simultaneous infections can affect recombination events and lead to the emergence of more virulent isolates.
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Affiliation(s)
- Jackson Alves da Silva Queiroz
- Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho RO 76812 245, Rondônia, Brazil; (J.A.d.S.Q.); (L.F.B.-S.); (F.S.N.-L.); (J.M.V.S.); (D.S.V.)
- Postgraduate Program in Experimental Biology of Federal University of Rondônia—PGBIOEXP, Porto Velho RO 76801 059, Rondônia, Brazil
- National Institute of Epidemiology of Western Amazonia—INCT EpiAmO, Porto Velho RO 76812 245, Rondônia, Brazil
| | - Luan Felipo Botelho-Souza
- Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho RO 76812 245, Rondônia, Brazil; (J.A.d.S.Q.); (L.F.B.-S.); (F.S.N.-L.); (J.M.V.S.); (D.S.V.)
- National Institute of Epidemiology of Western Amazonia—INCT EpiAmO, Porto Velho RO 76812 245, Rondônia, Brazil
- Aparício Carvalho University Center, Porto Velho RO 76811-678, Rondônia, Brazil
| | - Felipe Souza Nogueira-Lima
- Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho RO 76812 245, Rondônia, Brazil; (J.A.d.S.Q.); (L.F.B.-S.); (F.S.N.-L.); (J.M.V.S.); (D.S.V.)
- Postgraduate Program in Experimental Biology of Federal University of Rondônia—PGBIOEXP, Porto Velho RO 76801 059, Rondônia, Brazil
- National Institute of Epidemiology of Western Amazonia—INCT EpiAmO, Porto Velho RO 76812 245, Rondônia, Brazil
| | - Rita de Cássia Pontello Rampazzo
- Institute of Molecular Biology of Paraná -IBMP, Curitiba PR 81350-010, Rondônia, Brazil; (R.d.C.P.R.); (M.A.K.); (M.R.Z.); (F.K.M.); (I.A.B.)
| | - Marco Aurélio Krieger
- Institute of Molecular Biology of Paraná -IBMP, Curitiba PR 81350-010, Rondônia, Brazil; (R.d.C.P.R.); (M.A.K.); (M.R.Z.); (F.K.M.); (I.A.B.)
| | - Miriam Ribas Zambenedetti
- Institute of Molecular Biology of Paraná -IBMP, Curitiba PR 81350-010, Rondônia, Brazil; (R.d.C.P.R.); (M.A.K.); (M.R.Z.); (F.K.M.); (I.A.B.)
| | - Fabricio Klerinton Marchini
- Institute of Molecular Biology of Paraná -IBMP, Curitiba PR 81350-010, Rondônia, Brazil; (R.d.C.P.R.); (M.A.K.); (M.R.Z.); (F.K.M.); (I.A.B.)
| | - Ivo Alberto Borghetti
- Institute of Molecular Biology of Paraná -IBMP, Curitiba PR 81350-010, Rondônia, Brazil; (R.d.C.P.R.); (M.A.K.); (M.R.Z.); (F.K.M.); (I.A.B.)
| | - Dhelio Batista Pereira
- Tropical Medicine of Rondônia Center Research—CEPEM/RO, Porto Velho RO 76812 329, Rondônia, Brazil;
| | - Juan Miguel Vilalobos Salcedo
- Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho RO 76812 245, Rondônia, Brazil; (J.A.d.S.Q.); (L.F.B.-S.); (F.S.N.-L.); (J.M.V.S.); (D.S.V.)
- National Institute of Epidemiology of Western Amazonia—INCT EpiAmO, Porto Velho RO 76812 245, Rondônia, Brazil
- Tropical Medicine of Rondônia Center Research—CEPEM/RO, Porto Velho RO 76812 329, Rondônia, Brazil;
| | - Deusilene Souza Vieira
- Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho RO 76812 245, Rondônia, Brazil; (J.A.d.S.Q.); (L.F.B.-S.); (F.S.N.-L.); (J.M.V.S.); (D.S.V.)
- Postgraduate Program in Experimental Biology of Federal University of Rondônia—PGBIOEXP, Porto Velho RO 76801 059, Rondônia, Brazil
- National Institute of Epidemiology of Western Amazonia—INCT EpiAmO, Porto Velho RO 76812 245, Rondônia, Brazil
| | - Alcione de Oliveira dos Santos
- Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho RO 76812 245, Rondônia, Brazil; (J.A.d.S.Q.); (L.F.B.-S.); (F.S.N.-L.); (J.M.V.S.); (D.S.V.)
- National Institute of Epidemiology of Western Amazonia—INCT EpiAmO, Porto Velho RO 76812 245, Rondônia, Brazil
- Correspondence:
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Marti GA, Bonica MB, Susevich ML, Reynaldi F, Micieli MV, Echeverría MG. Host range of Triatoma virus does not extend to Aedes aegypti and Apis mellifera. J Invertebr Pathol 2020; 173:107383. [PMID: 32298695 DOI: 10.1016/j.jip.2020.107383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 11/30/2022]
Abstract
Vector control is the most effective method to prevent transmission of Chagas disease. Control is mostly made through chemical insecticides although they have negative impact on wild pollinators, such as bees. Reducing pesticide use through biological alternatives could minimize the damage to these beneficial insects. Triatoma virus (TrV) is a pathogen able to kill triatomines and thus a valid candidate to be used as biological control agent. In this study we evaluate the capacity of TrV to infect an important beneficial insect (Apis mellifera) as well as a plague insect (Aedes aegypti). Results indicate that TrV does not infect the bees or mosquitoes tested in this study. The possible specificity of TrV for kissing bugs reinforces the possible use of TrV as a biological control agent for triatomines.
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Affiliation(s)
- Gerardo Aníbal Marti
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), Boulevard 120 s/n e/60 y 64, 1900 La Plata, Argentina.
| | - Melisa Berenice Bonica
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), Boulevard 120 s/n e/60 y 64, 1900 La Plata, Argentina
| | - María Laura Susevich
- Cátedra de Virología, Facultad de Ciencias Veterinarias (UNLP), 60 y 118, 1900 La Plata, Argentina; CCT-La Plata - CONICET, 8 #1467, 1900 La Plata, Argentina
| | - Francisco Reynaldi
- Cátedra de Virología, Facultad de Ciencias Veterinarias (UNLP), 60 y 118, 1900 La Plata, Argentina; CCT-La Plata - CONICET, 8 #1467, 1900 La Plata, Argentina
| | - María Victoria Micieli
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE-CCT-La Plata-CONICET-UNLP), Boulevard 120 s/n e/60 y 64, 1900 La Plata, Argentina
| | - María Gabriela Echeverría
- Cátedra de Virología, Facultad de Ciencias Veterinarias (UNLP), 60 y 118, 1900 La Plata, Argentina; CCT-La Plata - CONICET, 8 #1467, 1900 La Plata, Argentina
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Pereira-dos-Santos T, Roiz D, Lourenço-de-Oliveira R, Paupy C. A Systematic Review: Is Aedes albopictus an Efficient Bridge Vector for Zoonotic Arboviruses? Pathogens 2020; 9:pathogens9040266. [PMID: 32272651 PMCID: PMC7238240 DOI: 10.3390/pathogens9040266] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 12/17/2022] Open
Abstract
Mosquito-borne arboviruses are increasing due to human disturbances of natural ecosystems and globalization of trade and travel. These anthropic changes may affect mosquito communities by modulating ecological traits that influence the “spill-over” dynamics of zoonotic pathogens, especially at the interface between natural and human environments. Particularly, the global invasion of Aedes albopictus is observed not only across urban and peri-urban settings, but also in newly invaded areas in natural settings. This could foster the interaction of Ae. albopictus with wildlife, including local reservoirs of enzootic arboviruses, with implications for the potential zoonotic transfer of pathogens. To evaluate the potential of Ae. albopictus as a bridge vector of arboviruses between wildlife and humans, we performed a bibliographic search and analysis focusing on three components: (1) The capacity of Ae. albopictus to exploit natural larval breeding sites, (2) the blood-feeding behaviour of Ae. albopictus, and (3) Ae. albopictus’ vector competence for arboviruses. Our analysis confirms the potential of Ae. albopictus as a bridge vector based on its colonization of natural breeding sites in newly invaded areas, its opportunistic feeding behaviour together with the preference for human blood, and the competence to transmit 14 arboviruses.
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Affiliation(s)
- Taissa Pereira-dos-Santos
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34090 Montpellier, France;
- Correspondence: (T.P.-d.-S.); (C.P.)
| | - David Roiz
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34090 Montpellier, France;
| | | | - Christophe Paupy
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34090 Montpellier, France;
- Correspondence: (T.P.-d.-S.); (C.P.)
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Paiva MHS, Guedes DRD, Krokovsky L, Machado LC, Rezende TMT, Sobral MCDM, Ayres CFJ, Wallau GL. Sequencing of ZIKV genomes directly from Ae. aegypti and Cx. quinquefasciatus mosquitoes collected during the 2015-16 epidemics in Recife. INFECTION GENETICS AND EVOLUTION 2020; 80:104180. [PMID: 31918041 DOI: 10.1016/j.meegid.2020.104180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 01/02/2020] [Accepted: 01/05/2020] [Indexed: 01/03/2023]
Abstract
Zika virus (ZIKV) is a negative sense RNA virus from the Flaviviridae family, which was relatively unknown until the first human epidemic in Micronesia, in 2007. Since then, it spread to French Polynesia and the Americas. Recife, the capital of Pernambuco state and epicenter of the Zika epidemic in Brazil, experienced a large number of microcephaly cases and other congenital abnormalities associated to the ZIKV infection from, 2015 to 16. Evidences suggest that both Aedes aegypti and Culex quinquefasciatus mosquitoes from Recife are capable of replicating and transmitting the virus. Here, we conducted high throughput sequencing of ZIKV genomes directly from Ae. aegypti and Cx. quinquefasciatus mosquitoes collected during the ZIKV epidemics in Recife, in order to investigate the variability and evolution of the virus. We obtained 11 draft ZIKV genomes derived from 5 pools from each Ae. aegypti and Cx. quinquefasciatus species. Genome coverage breadth ranged from 16 to 100% and average depth from 45 to 46,584×. Two of these genomes were obtained from pools of Cx. quinquefasciatus females with no sign of blood in the abdomen. Amino acid substitutions found here were not species-specific. In addition, molecular clock dating estimated that ZIKV draft genomes obtained here were co-circulating in other regions of the country during the epidemics. Overall results highlight that viral mutations and even minor variants can be detected in genomes directly sequenced from mosquito samples and insights about natural viral genomic variability and viral evolution can be useful when designing tools for mosquito control programs.
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Affiliation(s)
- Marcelo Henrique Santos Paiva
- Universidade Federal de Pernambuco, Caruaru, Brazil; Entomology Department of the Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil
| | | | - Larissa Krokovsky
- Entomology Department of the Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil
| | - Lais Ceschini Machado
- Entomology Department of the Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil
| | | | | | | | - Gabriel Luz Wallau
- Entomology Department of the Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil.
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