ArticleInsect molecular biology2022
Assessing Aedes aegypti candidate genes during viral infection and Wolbachia-mediated pathogen blocking.
Article in Insect molecular biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 12 citations in OpenAlex.
- Maltase 1 regulates DENV2 infection and life history in Aedes aegypti.Insect science · 2026Article
- The intensity of the transcriptional response varies across infection with distinct viral strains in an insect host.BMC genomics · 2025Article
- UnveilingFrontiers in cellular and infection microbiology · 2025Article
- Alpha-mannosidase-2 modulates arbovirus infection in a pathogen- and Wolbachia-specific manner in Aedes aegypti mosquitoes.Insect molecular biology · 2024Article
- Biological determinants perpetuating the transmission dynamics of mosquito-borne flaviviruses.Emerging microbes & infections · 2023Review
- Wolbachia-mediated resistance to Zika virus infection in Aedes aegypti is dominated by diverse transcriptional regulation and weak evolutionary pressures.PLoS neglected tropical diseases · 2023Article
- Article
- Assessing Aedes aegypti candidate genes during viral infection and Wolbachia-mediated pathogen blocking.Insect molecular biology · 2022Article
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
One approach to control dengue virus transmission is the symbiont Wolbachia, which limits viral infection in mosquitoes. Despite plans for its widespread use in Aedes aegypti, Wolbachia's mode of action remains poorly understood. Many studies suggest that the mechanism is likely multifaceted, involving aspects of immunity, cellular stress and nutritional competition. A previous study from our group used artificial selection to identify a new mosquito candidate gene related to viral blocking; alpha-mannosidase-2a (alpha-Mann-2a) with a predicted role in protein glycosylation. Protein glycosylation pathways tend to be involved in complex host-viral interactions; however, the function of alpha-mannosidases has not been described in mosquito-virus interactions. We examined alpha-Mann-2a expression in response to virus and Wolbachia infections and whether reduced gene expression, caused by RNA interference, affected viral loads. We show that dengue virus (DENV) infection affects the expression of alpha-Mann-2a in a tissue- and time-dependent manner, whereas Wolbachia infection had no effect. In the midgut, DENV prevalence increased following knockdown of alpha-Mann-2a expression in Wolbachia-free mosquitoes, suggesting that alpha-Mann-2a interferes with infection. Expression knockdown had the same effect on the togavirus chikungunya virus, indicating that alpha-Mann-2a may have broad antivirus effects in the midgut. Interestingly, we were unable to knockdown the expression in Wolbachia-infected mosquitoes. We also provide evidence that alpha-Mann-2a may affect the transcriptional level of another gene predicted to be involved in viral blocking and cell adhesion; cadherin87a. These data support the hypothesis that glycosylation and adhesion pathways may broadly be involved in viral infection in Ae. aegypti.
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Registered trials
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