Delftia tsuruhatensis TC1 symbiont suppresses malaria transmission by anopheline mosquitoes

• 成果类型: Article
• 署名作者: Huang, Wei; Rodrigues, Janneth; Bilgo, Etienne; Tormo, Jose R.; Challenger, Joseph D.; De Cozar-Gallardo, Cristina; Perez-Victoria, Ignacio; Reyes, Fernando; Castaneda-Casado, Pablo; Gnambani, Edounou Jacques; Hien, Domonbabele Francois de Sales; Konkobo, Maurice; Urones, Beatriz; Coppens, Isabelle; Mendoza-Losana, Alfonso; Ballell, Lluis; Diabate, Abdoulaye; Churcher, Thomas S.; Jacobs-Lorena, Marcelo
• 署名单位: Johns Hopkins University; Johns Hopkins Bloomberg School of Public Health; GlaxoSmithKline; Imperial College London; GlaxoSmithKline; Universidad Carlos III de Madrid; Johnson & Johnson; Janssen Pharmaceuticals; Johson & Johnson Belgium
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-9448
• DOI: 10.1126/science.adf8141
• 发表日期: 2023-08-04
• 页码: 533-540
• 关键词: beta-carboline alkaloids; plasmodium-falciparum; diversity; disease; microbiota; OWNERSHIP; coverage; bacteria; province; plants

摘要

Malaria control demands the development of a wide range of complementary strategies. We describe the properties of a naturally occurring, non-genetically modified symbiotic bacterium, Delftia tsuruhatensis TC1, which was isolated from mosquitoes incapable of sustaining the development of Plasmodium falciparum parasites. D. tsuruhatensis TC1 inhibits early stages of Plasmodium development and subsequent transmission by the Anopheles mosquito through secretion of a small-molecule inhibitor. We have identified this inhibitor to be the hydrophobic molecule harmane. We also found that, on mosquito contact, harmane penetrates the cuticle, inhibiting Plasmodium development. D. tsuruhatensis TC1 stably populates the mosquito gut, does not impose a fitness cost on the mosquito, and inhibits Plasmodium development for the mosquito's life. Contained field studies in Burkina Faso and modeling showed that D. tsuruhatensis TC1 has the potential to complement mosquito-targeted malaria transmission control.