Identification of the most immunoreactive antigens of Candida auris to sera from infected mice

ABSTRACT: Candida auris is a recently found pathogenic yeast that causes systemic infections, showing a high mortality rate. The delay on making a correct diagnosis of C. auris is a current problem in the healthcare system setting. As immunoproteomics studies are important to identify immunoreactive proteins for new diagnostic strategies, in this study immunocompetent murine systemic infections caused by non-aggregative and aggregative phenotypes of C. auris, and by Candida albicans and Candida haemulonii were carried out, and the obtained sera were used to study their immunoreactivity against C. auris proteins. The aim was to identify the most immunoreactive antigens of this yeast. Thirteen spots were recognized by sera from mice infected with both C. auris phenotypes and analyzed by mass spectrometry. They corresponded to enolase, phosphoglycerate kinase, glyceraldehyde 3-phosphate dehydrogenase and phosphoglycerate mutase. These four proteins seem to be also recognized by sera obtained from human patients with disseminated C. auris infection, but not by sera obtained from mice infected with other fungi such as C. albicans or Aspergillus fumigatus. In conclusion, this study showed that the identified proteins could be potential candidates to be studied as new diagnostic or even therapeutic targets for C. auris.

INSTRUMENT(S): Q Exactive HF, Orbitrap Exploris 240

ORGANISM(S): [candida] Auris Saccharomycetales

DISEASE(S): Candidiasis

SUBMITTER: Aitziber Antoran  

LAB HEAD: Andoni Ramirez

PROVIDER: PXD049077 | Pride | 2024-06-23

REPOSITORIES: Pride