Identification of mixed and successive blood meals of mosquitoes using MALDI-TOF MS protein profiling

Fatalmoudou Tandina, Sirama Niare, Lionel Almeras, Bernard Davoust, Ogobara K. Doumbo, Didier Raoult, Philippe Parola, Maureen Laroche

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Background The accurate and rapid identification of mosquito blood meals is critical to study the interactions between vectors and vertebrate hosts and, subsequently, to develop vector control strategies. Recently, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) profiling has been shown to be a reliable and effective tool for identifying single blood meals from mosquitoes.Methods In this study, we developed MALDI-TOF MS profiling protocols to identify Anopheles gambiae Giles, Anopheles coluzzii and Aedes albopictus mosquitoes' mixed blood meals and the last of successive blood meals. The mosquitoes were either successively artificially fed with distinct host bloods or engorged with mixed bloods from distinct vertebrate hosts, such as humans, sheep and dogs.Results Blind test analyses revealed a correct identification of mixed blood meals from mosquitoes using MALDI-TOF MS profiling. The 353 MS spectra from mixed blood meals were identified using log score values >1.8. All MS spectra (n = 244) obtained from mosquitoes' successive blood meals were reproducible and specific to the last blood meal, suggesting that the previous blood meals do not have an impact on the identification of the last one.Conclusion MALDI-TOF MS profiling approach appears to be an effective and robust technique to identify the last and mixed blood meals during medical entomological surveys.

Original languageEnglish (US)
Pages (from-to)329-339
Number of pages11
JournalParasitology
Volume147
Issue number3
DOIs
StatePublished - Mar 1 2020
Externally publishedYes

Keywords

  • Aedes
  • Anopheles
  • MALDI-TOF MS profiling
  • blood meals
  • entomological survey

ASJC Scopus subject areas

  • Parasitology
  • Animal Science and Zoology
  • Infectious Diseases

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