ArticleiScience2025
Sand fly saliva reprograms skin fibroblasts to enhance arbovirus infection.
Article in iScience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Arbovirus transmission by sand flies is a growing public health concern, yet the early skin events shaping infection outcomes remain undefined. We establish a mouse model of Toscana virus (TOSV) infection that incorporates sand fly salivary factors to mimic natural transmission. Saliva from two distinct sand fly genera significantly enhanced infection and promoted neurological signs and joint inflammation, recapitulating key features of human TOSV disease. In the skin, dermal macrophages and fibroblasts were the main infected cell types, but only fibroblasts generated infectious virus. Saliva reprogrammed fibroblasts into a wound-healing state permissive to viral replication, driving local viral amplification, systemic spread, and thereby clinical disease. These findings identify skin fibroblasts as central determinants of host susceptibility and reveal that sand fly saliva actively remodels the skin to exacerbate viral pathogenesis. This work redefines the skin's role in sand fly-transmitted infection and highlights new targets for therapeutic and vaccine development.
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