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Table · dataset · 2026

<p>Source date.</p>

Listed in ZivaHub and HKU DataHub and DaYta Ya Rona and figshare and Loughborough Research Repository and UP Research Data Repository — shown once because both records carry DOI 10.1371/journal.ppat.1014644.s008

<div><p><i>Staphylococcus aureus</i> (<i>S. aureus</i>), a major pathogen of mastitis, employs a diverse arsenal of virulence factors to invade and disrupt mammary tissues, thereby eliciting a complex and dysregulated inflammatory response.

Description

Sphingomyelin phosphodiesterase (Sph) has emerged as a key virulence determinant of <i>S. aureus</i>; however, its potential role and underlying mechanisms in mastitis remain elusive.

In this study, we demonstrate that Sph deficiency significantly suppresses <i>S. aureus</i>-induced ferroptosis. Mechanistically, Sph disrupts mitochondrial cristae through interaction with Mic60, a core component of the mitochondrial contact site and cristae-organizing system (MICOS). Sph-mediated cytosolic mitochondrial DNA (mtDNA) released is sensed by cyclic GMP-AMP synthase (cGAS), leading to activation of the STING signaling pathway, which further triggers the recruitment of GPX4 into the autophagy-lysosome pathway for degradation.

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Collectively, our study unveils a novel pathogenic mechanism whereby the <i>S. aureus</i> virulence factor Sph perturbs mitochondrial homeostasis, and engages the cGAS-STING axis to promote GPX4 degradation and ferroptosis, highlighting Sph as a potential therapeutic target for <i>S. aureus</i>-associated mastitis.</p></div>

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Catalogue records · 1

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Astronomy & Astrophysics · Biochemistry and cell biology · Biochemistry and cell biology · Biochemistry and cell biology · Biochemistry and cell biology · Biochemistry and cell biology · Biochemistry and cell biology · Chemistry · Chemistry · Computer Science & AI · Computer Science & AI · Earth & Environmental Science · Earth & Environmental Science · Earth & Environmental Science · Earth & Environmental Science · Earth & Environmental Science · Earth & Environmental Science · Economics & Finance · Economics & Finance · Engineering · Engineering · Engineering · Engineering · Genetics · Genetics · Genetics · Genetics · Genetics · Genetics · Humanities · Humanities · Humanities · Humanities · Immunology · Immunology · Immunology · Immunology · Immunology · Immunology · Infectious diseases · Infectious diseases · Infectious diseases · Infectious diseases · Infectious diseases · Infectious diseases · Life Sciences · Life Sciences · Life Sciences · Life Sciences · Life Sciences · Life Sciences · Materials Science · Mathematics & Statistics · Medicine & Health · Medicine & Health · Medicine & Health · Medicine & Health · Medicine & Health · Medicine & Health · Microbiology · Microbiology · Microbiology · Microbiology · Microbiology · Microbiology · Ocean & Atmospheric Science · Psychology & Behavioral Science · Research, science and technology policy · Research, science and technology policy · Research, science and technology policy · Research, science and technology policy · Research, science and technology policy · Research, science and technology policy · Social Science · Social Science · Social Science · Social Science · Virology · Virology · Virology · Virology · Virology · Virology
Provenance · 6 source records, 88 field assertions
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ZivaHuboai:figshare.com:article/340265738 d agoJSON v1
HKU DataHuboai:figshare.com:article/340265738 d agoJSON v1
DaYta Ya Ronaoai:figshare.com:article/340265738 d agoJSON v1
figshareoai:figshare.com:article/340265737 d agoJSON v1
Loughborough Research Repositoryoai:figshare.com:article/340265737 d agoJSON v1
UP Research Data Repositoryoai:figshare.com:article/340265737 d agoJSON v1
FieldAssertionExtractorEvidence
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