Sand fly saliva is known to play an important role in the establishment of Leishmania spp. infection. As a consequence, identifying antigenic salivary proteins of different leishmaniasis vectors has currently become a major task in the field of anti-Leishmania vaccine development. The purpose of this work was to improve the knowledge of Phlebotomus perniciosus salivary proteins by combining two-dimensional gel electrophoresis (2DE) methodology, mass spectrometry and Western blotting (WB). Salivary protein profiles of three P.
Pooled salivary gland samples are frequently used to ensure the sufficient amount of material for the experiments; however, this could mask an individual variability. Thus, we compared salivary protein profiles in seven colonies of three Phlebotomus species: Phlebotomus sergenti, Phlebotomus perniciosus, and Phlebotomus papatasi. Surprisingly, the individual profiles differed significantly between the colonies as well as between individuals. The highest variability was observed in proteins with molecular masses of 42-46kDa corresponding to the yellow-related proteins.
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