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Gasdermin D-mediated neutrophil pyroptosis drives inflammation in psoriasis.
Elife
December 2024
Department of Dermatology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Psoriasis is a multifactorial immune-mediated inflammatory disease. Its pathogenesis involves abnormal accumulation of neutrophils and T-cell-related abnormalities. Pyroptosis is a type of regulated cell death associated with innate immunity, but its role in psoriasis is unclear.
View Article and Find Full Text PDFMacrophage Notch1 signaling modulates regulatory T cells via the TGFB axis in early MASLD.
JHEP Rep
January 2025
Department of Pharmacology, Wuhan University TaiKang Medical School (School of Basic Medical Sciences), Wuhan 430071, China.
Background & Aims: Hepatic immune imbalance is crucial for driving metabolic dysfunction-associated steatotic liver disease (MASLD) progression. However, the role of hepatic regulatory T cells (Tregs) in MASLD initiation and the mechanisms responsible for their change are not completely understood.
Methods: A mouse model subjected to a short-term high-fat diet (HFD) to mimic early steatosis, along with liver biopsy samples from patients with simple steatosis, and macrophage-specific Notch1-knockout mice (Notch1), were used to investigate the role of Tregs in early MASLD and the effect of hepatic macrophage Notch1 signaling on Treg frequency.
Hydrogen sulfide-mediated inhibition of ROCK exerts a vasoprotective effecton ischemic brain injury.
Am J Physiol Cell Physiol
December 2024
Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.
As a gas molecule, hydrogen sulfide (HS) exerts neuroprotective effects. Despite its recognized importance, there remains a need for a deeper understanding of HS's impact on vascular smooth muscle cells and its role in ischemic brain injury. This study employs encompassing cultured primary cerebral vascular smooth muscle cells, oxygen-glucose deprivation/reoxygenation model, in vitro vascular tone assessments, in vivo middle cerebral artery occlusion and reperfusion experimentation in male rats, and the utilization of ROCK knockout, to unravel the intricate relationship between H2S and cerebrovascular diastolic function.
View Article and Find Full Text PDFA new regulation mechanism for KCNN4, the Ca-dependent K channel, by molecular interactions with the Capump PMCA4b.
J Biol Chem
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Université Côte d'Azur, CNRS, Inserm, Institut Biologie Valrose, Nice, France; Laboratory of Excellence for RBC, LABEX GR-Ex, 75015, Paris, France. Electronic address:
KCNN4, a Ca-activated K channel, is involved in various physiological and pathological processes. It is essential for epithelial transport, immune system and other physiological mechanisms but its activation is also involved in cancer pathophysiology as well as red blood cell disorders (RBC). The activation of KCNN4 in RBC leads to loss of KCl and water, a mechanism known as the "Gardos effect" described seventy years ago.
View Article and Find Full Text PDFHuman enteroviruses and the long road to acute flacid paralysis eradication.
J Appl Microbiol
December 2024
Enteric Virus Laboratory, Department of Genetics, Microbiology and Statistics, School of Biology.
Enteroviruses (EV) are a highly diverse group of viruses multiplying primarily in the gastrointestinal tract and/or the upper respiratory tract, initially distributed in two separate genera: Enterovirus and Rhinovirus, respectively. According to the similarities in genome organization and particle structure, rhinovirus species were later reclassified as also belonging to genus Enterovirus. Human EV infections are usually asymptomatic or causing mild clinical manifestations.
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