Results 21 to 30 of about 25,568 (180)

Crystal structure of mammalian acid sphingomyelinase

open access: yesNature Communications, 2016
Mutations in acid sphingomyelinase result in toxic accumulation of sphingomyelin and cause Niemann-Pick disease. Here, the authors report structures of mammalian acid sphingomyelinase, which reveal details of the molecular mechanism of acid ...
Alexei Gorelik   +4 more
doaj   +1 more source

Renal involvement in a patient with the chronic visceral subtype of acid sphingomyelinase deficiency resembles Fabry disease

open access: yesJIMD Reports, 2021
Acid sphingomyelinase deficiency (ASMD) is a lysosomal storage disease (LSD) in which sphingomyelin accumulates due to deficient acid sphingomyelinase. In the chronic visceral subtype, organ manifestations are generally limited to the spleen, liver, and ...
Eline C. B. Eskes   +6 more
doaj   +1 more source

Mechanisms of Action and Cell Death Associated with Clostridium perfringens Toxins. [PDF]

open access: yes, 2018
Clostridium perfringens uses its large arsenal of protein toxins to produce histotoxic, neurologic and intestinal infections in humans and animals. The major toxins involved in diseases are alpha (CPA), beta (CPB), epsilon (ETX), iota (ITX), enterotoxin (
McClane, Bruce A   +2 more
core   +3 more sources

Hyperresponsiveness of mice deficient in plasma-secreted sphingomyelinase reveals its pivotal role in early phase of host response

open access: yesJournal of Lipid Research, 2013
Plasma secretion of acid sphingomyelinase is a hallmark of cellular stress response resulting in the formation of membrane embedded ceramide-enriched lipid rafts and the reorganization of receptor complexes.
Nayla Jbeily   +10 more
doaj   +1 more source

Heterotrimeric G-protein subunit Gαi2 contributes to agonist-sensitive apoptosis and degranulation in murine platelets [PDF]

open access: yes, 2018
Gαi2, a heterotrimeric G-protein subunit, regulates various cell functions including ion channel activity, cell differentiation, proliferation and apoptosis.
Birnbaumer, Lutz   +12 more
core   +1 more source

Apoptosis and signalling in acid sphingomyelinase deficient cells

open access: yesBMC Cell Biology, 2001
Background Recent evidence suggests that the activation of a non-specific lipid scramblase during apoptosis induces the flipping of sphingomyelin from the cell surface to the cytoplasmic leaftet of the plasma membrane. Inner leaflet sphingomyelin is then
Sillence Dan J
doaj   +1 more source

The Roles of Membrane Rafts in CD32A-Mediated Phagocytosis [PDF]

open access: yes, 2007
Membrane rafts are highly dynamic heterogeneous sterol- and sphingolipid-rich micro-domains on cell surfaces. They are generally believed to provide residency for cell surface molecules (e.g., adhesion and signaling molecules) and scaffolding to ...
Cheng Zhu   +2 more
core   +2 more sources

Staphylococcus aureus α-Toxin Induces Inflammatory Cytokines via Lysosomal Acid Sphingomyelinase and Ceramides

open access: yesCellular Physiology and Biochemistry, 2017
Background/Aims: Staphylococcus aureus (S. aureus) infections are a major clinical problem and range from mild skin and soft-tissue infections to severe and even lethal infections such as pneumonia, endocarditis, sepsis, osteomyelitis, and toxic shock ...
Jie Ma   +5 more
doaj   +1 more source

Apoptotic signaling through CD95 (Fas/Apo-1) activates an acidic sphingomyelinase. [PDF]

open access: yes, 1994
Intracellular pathways leading from membrane receptor engagement to apoptotic cell death are still poorly characterized. We investigated the intracellular signaling generated after cross-linking of CD95 (Fas/Apo-1 antigen), a broadly expressed cell ...
Azuma, M   +7 more
core   +2 more sources

Src Mediates Epigallocatechin-3-O-Gallate-Elicited Acid Sphingomyelinase Activation

open access: yesMolecules, 2020
Epigallocatechin-3-O-gallate (EGCG) is one of the major bioactive compounds known to be present in green tea. We previously reported that EGCG shows selective toxicity through activation of the protein kinase B (Akt)/cyclic guanosine monophosphate (cGMP)/
Motofumi Kumazoe   +5 more
doaj   +1 more source

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