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Single-Cell Sequencing of Peripheral Blood Mononuclear Cells Reveals Immune Landscape of Monkeypox Patients with HIV.
Emerg Microbes Infect
January 2025
State Key Laboratory of Experimental Hematology, Department of Physiology and Pathophysiology, Tianjin Medical University, Heping, Tianjin, 300070 China.
The monkeypox (MPXV) outbreak in 2022 is more prevalent among individuals with human immunodeficiency virus (HIV). While it is plausible that HIV-induced immunosuppression could result in a more severe progression, the exact mechanisms remain undetermined. To better understand the immunopathology of MPXV in patients with and without HIV infection, we employed single-cell RNA sequencing (scRNA-seq) to analyze peripheral blood mononuclear cells (PBMCs) from 6 patients hospitalized for MPXV, 3 of whom had HIV infection (HIV antibody positive & HIV RNA level below the detection limit), and 3 patients only infected with MPXV (HIV-).
View Article and Find Full Text PDFExploring the role of T cells in Alzheimer's and other neurodegenerative diseases: Emerging therapeutic insights from the T Cells in the Brain symposium.
Alzheimers Dement
January 2025
Center for Motor Neuron Biology and Disease, Columbia University Medical Center, New York, New York, USA.
This proceedings article summarizes the inaugural "T Cells in the Brain" symposium held at Columbia University. Experts gathered to explore the role of T cells in neurodegenerative diseases. Key topics included characterization of antigen-specific immune responses, T cell receptor (TCR) repertoire, microbial etiology in Alzheimer's disease (AD), and microglia-T cell crosstalk, with a focus on how T cells affect neuroinflammation and AD biomarkers like amyloid beta and tau.
View Article and Find Full Text PDFAmenorrhea is a common symptom of a whole range of nosologies among women of reproductive age, which can accompany any endocrinopathy in the stage of decompensation. In all the diversity of various links in the pathogenesis of reproductive disorders, the problem of immunopathology remains a little aside, however, the significance of these disorders is underestimated. This publication provides an overview of immune system abnormalities in a women with amenorrhea.
View Article and Find Full Text PDFNicotinamide mononucleotide restores impaired metabolism, endothelial cell proliferation and angiogenesis in old sedentary male mice.
iScience
January 2025
Department of Vascular Surgery, Lausanne University Hospital (CHUV), Lausanne, Switzerland.
Aging is accompanied by a decline in neovascularization potential and increased susceptibility to ischemic injury. Here, we confirm the age-related impaired neovascularization following ischemic leg injury and impaired angiogenesis. The age-related deficits in angiogenesis arose primarily from diminished EC proliferation capacity, but not migration or VEGF sensitivity.
View Article and Find Full Text PDFIFN-γ licenses normal and pathogenic ALPK1/TIFA pathway in human monocytes.
iScience
January 2025
CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, University Lyon, F-69007 Lyon, France.
Alpha-kinase 1 (ALPK1) is an immune receptor sensing the bacterial nucleotide sugar ADP-heptose. ALPK1 phosphorylates TIFA leading to its oligomerization and downstream NF-κB activation. Specific mutations in are associated with an autoinflammatory syndrome termed ROSAH and with spiradenoma (skin cancers with sweat gland differentiation).
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