Characterization and proteomic analysis of plasma EVs recovered from healthy and diseased dogs with Canine Leishmaniosis
Ontology highlight
ABSTRACT: Dogs are highly valued companions and work animals that are susceptible to many life-threatening conditions like canine leishmaniosis (CanL). Plasma-derived extracellular vesicles (EVs), exploited extensively in biomarker discovery, constitute a mostly untapped resource in veterinary sciences. Thus, the definition of proteins associated with plasma EVs recovered from healthy and diseased dogs with a relevant pathogen would be important for biomarker development. For this, we recovered using size-exclusion chromatography (SEC), EVs from 19 healthy and 20 CanL dogs’ plasma and performed proteomic analysis by LC-MS/MS to define their core proteomic composition and search for CanL-associated alterations. EVs-specific markers were identified in all preparations and also non-EVs proteins. Some EVs markers like CD82 were specific to the healthy animals, while others like the Integrin beta 3 were identified in most samples. The EVs-enriched preparations allowed the identification of 529 canine proteins that were identified in both groups, while 465 and 154 were only identified in healthy or CanL samples, respectively. A GO enrichment analysis revealed few CanL-specific terms. Leishmania spp. protein identifications were also found alt-hough with only 1 unique peptide. Ultimately, CanL-associated proteins of interest were identified and a core proteome was revealed that will be available for intra- and inter-species comparisons.
INSTRUMENT(S): Q Exactive
ORGANISM(S): Leishmania Infantum Canis Familiaris (dog) (canis Lupus Familiaris)
TISSUE(S): Blood Plasma
DISEASE(S): Leishmaniasis
SUBMITTER: Nuno Santarém
LAB HEAD: Anabela Cordeiro da Silva
PROVIDER: PXD039610 | Pride | 2023-05-10
REPOSITORIES: Pride
ACCESS DATA