Shared and distinct mechanisms of UBA1 inactivation across different diseases
Most cellular ubiquitin signaling is initiated by UBA1, which activates and transfers ubiquitin to tens of E2 enzymes. Clonally acquired UBA1 missense mutations cause an inflammatory-hematologic overlap disease called VEXAS (vacuoles, E1, X-linked ...
Nadine L Samara +2 more
exaly +5 more sources
Trisomy 8 clonal expansion during disease progression and azacitidine resistance in VEXAS syndrome: a case report [PDF]
BackgroundVacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome is an adult-onset autoinflammatory disorder driven by clonal hematopoiesis with somatic UBA1 mutations.
Keijiro Sato +16 more
doaj +2 more sources
UBA1 promotes cardiac hypertrophy by suppressing autophagy via targeting ATG5 for ubiquitination [PDF]
Background Pathological cardiac hypertrophy frequently leads to heart failure (HF). UBA1, the key E1 ubiquitin-activating enzyme, initiates ubiquitin-proteasome signaling and contributes to various diseases, yet its mechanism in cardiac hypertrophy ...
Qiu-Yue Lin +6 more
doaj +2 more sources
A rapid, accessible real-time PCR approach to identify UBA1 somatic mutations in VEXAS syndrome [PDF]
BackgroundVEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome is a severe adult-onset autoinflammatory disease caused by somatic mutations in the X-linked UBA1 gene, most commonly affecting codon 41.
Luisa Agnello +13 more
doaj +2 more sources
Clinical characteristics and a screening tool for VEXAS syndrome: a case-control study from China [PDF]
Background VEXAS syndrome is a severe autoinflammatory disease characterized by systemic inflammation, rheumatic manifestations, and hematologic abnormalities. Its clinical heterogeneity and overlap with other conditions complicate diagnosis.
Menghui Yao +14 more
doaj +2 more sources
Cryo-EM structures of UBA6 reveal mechanisms of E1–E2 specificity and dual FAT10/ubiquitin thioester transfer [PDF]
UBA1 and UBA6 define parallel ubiquitin (Ub) activation systems that perform non-overlapping roles in Ub and ubiquitin-like protein (Ubl) signaling. Whereas UBA1 supports the canonical Ub pathway, UBA6 also activates the Ubl FAT10, linking Ub signaling ...
Digant Nayak +18 more
doaj +2 more sources
Neutrophils take center stage in VEXAS syndrome pathogenesis [PDF]
Vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome is an adult-onset inflammatory disorder caused by somatic UBA1 mutations in hematopoietic stem cells. UBA1 encodes a key enzyme that catalyzes protein ubiquitination.
Ajay Tambralli, Jason S. Knight
doaj +2 more sources
UBA1-depleted neutrophils disrupt immune homeostasis and induce VEXAS-like autoinflammatory disease in mice [PDF]
Vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome is a hemato-rheumatoid disease caused by somatic UBA1 mutations in hematopoietic stem cells (HSCs). The pathogenic cell type(s) responsible for the syndrome are unknown, and murine
Ge Dong +15 more
doaj +2 more sources
Joint involvement in VEXAS and non-VEXAS clonal haematopoiesis: two clusters from a multicentre regional cohort [PDF]
Objective: To describe the joint manifestations associated with clonal haematopoiesis and to compare patients with and without VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome.
Olivier Vittecoq +13 more
doaj +2 more sources
Case Report: Early-onset VEXAS syndrome with recurrent pulmonary inflammation and myelodysplasia: a diagnostic and therapeutic challenge [PDF]
BackgroundVEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome is a newly recognized adult-onset autoinflammatory disorder caused by somatic mutations in the UBA1 gene. It typically presents in older males with systemic inflammation,
Xianghong Jin +6 more
doaj +2 more sources

