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The Role of Annexin A1 in Candida albicans and Candida auris infections in murine neutrophils

ABSTRACT:

Annexin A1 (AnxA1) is an anti-inflammatory protein present in different cells in biological systems, especially expressed in macrophages and neutrophils. Since neutrophils play an important role in infections and inflammatory processes and the AnxA1 and its relation in Candida spp. infections is not well understood, our study highlights a perspective in AnxA1 as a target protein in control the immune response during fungi infection. C57BL/6 wild-type (WT) and AnxA1 knockout (AnxA1-/-) peritoneal neutrophils were coinfected with Candida albicans or Candida auris for 4 hours. High levels of COX-2 were observed in WT and AnxA1-/- neutrophils infected with C. albicans and C. auris coinfection. In addition, AnxA1-/- neutrophils exhibited a marked increase of phosphorylated ERK, p-38 and JNK levels after coinfection with both Candida spp. Lipidomics approach shows that lack of AnxA1 produced a marked difference in lipid profile of control or coinfected neutrophil supernatants compared to WT, especially glycerophospholipids and glycerolipids. In summary, our results showed that endogenous AnxA1 regulates neutrophil response under fungal infection and its lipid membrane organization and metabolism.

INSTRUMENT(S): Liquid Chromatography MS - negative - reverse phase, Liquid Chromatography MS - positive

SUBMITTER: Anna Maria Fernandes

PROVIDER: MTBLS2288 | MetaboLights | 2021-12-03

REPOSITORIES: MetaboLights

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The Role of Annexin A1 in Candida albicans and Candida auris infections in murine neutrophils

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