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Vector microbiota manipulation by host antibodies: the forgotten strategy to develop transmission-blocking vaccines

Abstract : Abstract Human and animal pathogens that are transmitted by arthropods are a global concern, particularly those vectored by ticks (e.g. Borrelia burgdorferi and tick-borne encephalitis virus) and mosquitoes (e.g. malaria and dengue virus). Breaking the circulation of pathogens in permanent foci by controlling vectors using acaricide-based approaches is threatened by the selection of acaricide resistance in vector populations, poor management practices and relaxing of control measures. Alternative strategies that can reduce vector populations and/or vector-mediated transmission are encouraged worldwide. In recent years, it has become clear that arthropod-associated microbiota are involved in many aspects of host physiology and vector competence, prompting research into vector microbiota manipulation. Here, we review how increased knowledge of microbial ecology and vector-host interactions is driving the emergence of new concepts and tools for vector and pathogen control. We focus on the immune functions of host antibodies taken in the blood meal as they can target pathogens and microbiota bacteria within hematophagous arthropods. Anti-microbiota vaccines are presented as a tool to manipulate the vector microbiota and interfere with the development of pathogens within their vectors. Since the importance of some bacterial taxa for colonization of vector-borne pathogens is well known, the disruption of the vector microbiota by host antibodies opens the possibility to develop novel transmission-blocking vaccines.
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Submitted on : Wednesday, January 19, 2022 - 10:12:49 AM
Last modification on : Saturday, May 28, 2022 - 3:07:52 AM

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Distributed under a Creative Commons Attribution 4.0 International License

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Apolline Maitre, Alejandra Wu-Chuang, Justė Aželytė, Vaidas Palinauskas, Lourdes Mateos-Hernández, et al.. Vector microbiota manipulation by host antibodies: the forgotten strategy to develop transmission-blocking vaccines. Parasites & Vectors, 2022, 15 (1), pp.4. ⟨10.1186/s13071-021-05122-5⟩. ⟨hal-03533913⟩

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