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Oral Exposure to Toxin A Aggravates Food Allergy by Intestinal Barrier Destruction, Mast Cell Activation, and Th2-Biased Immune Responses.
J Agric Food Chem
January 2025
State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, P. R. China.
Food allergy is a complex disease, with multiple environmental factors involved. Considering the regulatory effect of toxin A (Tcd A) on biological processes of allergic reactions, the role of oral exposure to Tcd A on food allergy was investigated. The intestinal permeability and β-hexosaminidase were promoted by Tcd A using the in vitro Caco-2 and HT-29 cells coculture monolayer and bone marrow-derived mast cell (MCs) degranulation model.
View Article and Find Full Text PDFBone Marrow Mononuclear Cell Transplantation Promotes Bone Healing via Gap Junction-Mediated Cell-Cell Interaction.
Stem Cells
January 2025
Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe city, Hyogo 650-0017, Japan.
Aims: Bone marrow mononuclear cells (BM-MNCs) are a rich source of hematopoietic stem cells that have been widely used in experimental therapies for patients with various diseases, including fractures.Activation of angiogenesis is believed to be one of the major modes of action of BM-MNCs; however, the essential mechanism by which BM-MNCs activate angiogenesis remains elusive. This study aimed to demonstrate that BM-MNCs promote bone healing by enhancing angiogenesis through direct cell-to-cell interactions via gap junctions, in addition to a previously reported method.
View Article and Find Full Text PDFHuman Oncostatin M deficiency underlies an inherited severe bone marrow failure syndrome.
J Clin Invest
January 2025
Laboratory of Genome Dynamics in the Immune, INSERM UMR 116, Équipe Labellisée LIGUE 2023, Paris, France.
Oncostatin M (OSM) is a cytokine with the unique ability to interact with both the OSM receptor (OSMR) and the leukemia inhibitory factor receptor (LIFR). On the other hand, OSMR interacts with IL31RA to form the interleukin-31 receptor. This intricate network of cytokines and receptors makes it difficult to understand the specific function of OSM.
View Article and Find Full Text PDFMechanisms of Antitumor Activity of Low Doses of Radiation Associated with Activation of Cells' Defense System.
Dokl Biochem Biophys
January 2025
State Research Center-Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, 123098, Moscow, Russia.
Background: The effects of ionizing radiation (IR) involve a highly orchestrated series of events in cells, including DNA damage and repair, cell death, and changes in the level of proliferation associated with the stage of the cell cycle. A large number of existing studies in literature have examined the activity of genes and their regulators in mammalian cells in response to high doses of ionizing radiation. Although there are many studies, the research in effect of low doses of ionizing radiation remains limited.
View Article and Find Full Text PDFFolate metabolism in myelofibrosis: a missing key?
Ann Hematol
January 2025
Department of Medicine and Surgery, Anatomy Unit, University of Parma, Via Gramsci 14, Parma, 43126, Italy.
Folates serve as key enzyme cofactors in several biological processes. Folic acid supplementation is a cornerstone practice but may have a "dark side". Indeed, the accumulation of circulating unmetabolized folic acid (UMFA) has been associated with various chronic inflammatory conditions, including cancer.
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