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MOnitoring Sugar-feeding Activity in Insects for bioactive Compound identification

Project description

Plant sugars for antipathogenic vector control

Vector-borne diseases (VBDs) cause severe health problems, especially in tropical areas. Climate and land-use change, along with insect adaptability, raise transmission rates. Insecticides are commonly used for control but are often subject to resistance. Mosquitoes and sandflies feed on plant sugars, and some nectars may inhibit pathogens. Supported by the Marie Skłodowska-Curie Actions programme, the MOSAIC project will investigate whether nectar from Aedes aegypti and Phlebotomus argentipes in Nepal can yield antipathogenic leads. It will quantify sugar feeding, identify nectar plants using DNA barcoding, and test extracts against dengue and Leishmania donovani. An open-access Nectar-Antipathogen Database (NAD) will link plant taxonomy and bioactivity, support vector control in resource-limited settings, and align with the WHO’s goals.

Objective

Vector-borne diseases (VBDs) such as dengue and leishmaniasis account for millions of Disability-Adjusted Life Years (DALYs) annually, with the heaviest toll in tropical and subtropical regions. Climate change, land-use change, and insect adaptability are accelerating transmission, while control strategies remain largely insecticide-centred and vulnerable to resistance. A critical but overlooked aspect of insect biology is sugar feeding. Mosquitoes and sand flies depend on plant-derived sugars, and growing evidence shows that certain nectars contain metabolites able to modulate microbiota and block pathogen development. MOSAIC (MOnitoring Sugar-feeding Activity in Insects for bioactive Compound identification) will test whether nectar consumed by Aedes aegypti and Phlebotomus argentipes in Nepal, a biodiversity-rich yet epidemiologically vulnerable setting, can yield antipathogenic leads. The project will: (i) quantify sugar feeding in wild insects; (ii) identify sugar-source plants through multilocus DNA barcoding, and validate visitation under semi-field conditions; and (iii) collect nectar from top-ranked plants, standardize extracts, and assess activity against dengue virus and Leishmania donovani. In parallel, an open-access Nectar-Antipathogen Database (NAD) will combine a PRISMA-guided systematic review with project data, linking plant taxonomy, nectar chemistry, and bioactivity. Cheminformatics will prioritise candidates via structure-activity patterns, guiding assays and reducing costs. Through an integrated ecological, molecular, biochemical, and computational pipeline, MOSAIC will deliver actionable, nature-based evidence to complement vector control, with relevance for resource-limited settings and alignment with WHO’s Global Vector Control Response and planetary health goals.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

INSTITUUT VOOR TROPISCHE GENEESKUNDE
Net EU contribution
€ 216 240,00
Address
NATIONALESTRAAT 155
2000 ANTWERPEN
Belgium
Region
Vlaams Gewest Prov. Antwerpen Arr. Antwerpen
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data