Journal
MOLECULAR MICROBIOLOGY
Volume 115, Issue 6, Pages 1229-1243Publisher
WILEY
DOI: 10.1111/mmi.14668
Keywords
Aa23; Aag2; Aedes aegypti; Aedes albopictus; mosquito; transcription; wAlbB; Wolbachia
Categories
Funding
- Australian Research Council [DP190102048]
- University of Queensland
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Wolbachia is an obligate intracellular bacterial symbiont that interacts with and modifies host subcellular structures, potentially offering a new approach for controlling arthropod-borne viruses by manipulating host reproductive biology. Some strains of Wolbachia can rapidly invade insect populations, preventing viral replication and transmission.
Wolbachia is an obligate intracellular bacterial symbiont prevalent among arthropods and nematodes. To survive and reproduce, Wolbachia interacts with and modifies host subcellular structures, while sensing and responding to changes within the cellular environment. In mutualistic associations, Wolbachia may provision the host with metabolites, or help to maintain the chemical homeostasis of the host cell. Some strains can rapidly invade insect populations by manipulating host reproductive biology, while also preventing viral replication, allowing their use in vector control of arthropod-borne viruses. The Aedes albopictus-derived strain wAlbB is promising in this regard. When transinfected into the Yellow fever mosquito, Aedes aegypti, wAlbB reaches high frequencies within wild populations, and strongly inhibits viral transmission. Despite its obvious potential, much is still unknown about the molecular interactions between Wolbachia and host that enable its use in vector control. Furthermore, most Wolbachia transinfection research to date has focused on host effects. In the current study, we used a cell line model to explore the effect of transinfection of wAlbB from Ae. albopictus to Ae. aegypti. Using RNA sequencing, we show that several genes associated with host-symbiont interactions were downregulated by transinfection, with the greatest downregulation exhibited by prophage-associated genes.
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