Publications [#350610] of Emily R. Derbyshire

Journal Articles

1. Ganley, JG; Pandey, A; Sylvester, K; Lu, K-Y; Toro-Moreno, M; Rütschlin, S; Bradford, JM; Champion, CJ; Böttcher, T; Xu, J; Derbyshire, ER, A Systematic Analysis of Mosquito-Microbiome Biosynthetic Gene Clusters Reveals Antimalarial Siderophores that Reduce Mosquito Reproduction Capacity., Cell chemical biology, vol. 27 no. 7 (July, 2020), pp. 817-826.e5 [doi]
   (last updated on 2024/12/31)

   Abstract:
   Advances in infectious disease control strategies through genetic manipulation of insect microbiomes have heightened interest in microbially produced small molecules within mosquitoes. Herein, 33 mosquito-associated bacterial genomes were mined and over 700 putative biosynthetic gene clusters (BGCs) were identified, 135 of which belong to known classes of BGCs. After an in-depth analysis of the 135 BGCs, iron-binding siderophores were chosen for further investigation due to their high abundance and well-characterized bioactivities. Through various metabolomic strategies, eight siderophore scaffolds were identified in six strains of mosquito-associated bacteria. Among these, serratiochelin A and pyochelin were found to reduce female Anopheles gambiae overall fecundity likely by lowering their blood-feeding rate. Serratiochelin A and pyochelin were further found to inhibit the Plasmodium parasite asexual blood and liver stages in vitro. Our work supplies a bioinformatic resource for future mosquito-microbiome studies and highlights an understudied source of bioactive small molecules.