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Inhibition of HMGA2 binding to AT-rich DNA by its negatively charged C-terminus.
Nucleic Acids Res
January 2025
Biomolecular Sciences Institute, Florida International University, Miami, FL 33199, United States.
The mammalian high mobility group protein AT-hook 2 (HMGA2) is a small DNA-binding protein that specifically targets AT-rich DNA sequences. Structurally, HMGA2 is an intrinsically disordered protein (IDP), comprising three positively charged 'AT-hooks' and a negatively charged C-terminus. HMGA2 can form homodimers through electrostatic interactions between its 'AT-hooks' and C-terminus.
View Article and Find Full Text PDFThe bronchoalveolar lavage fluid as a marker for pulmonary fibrosis in diffuse parenchymal lung diseases.
Front Immunol
January 2025
Laboratory of Molecular Immunology, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia.
Introduction: Diffuse parenchymal lung diseases (DPLD) cover heterogeneous types of lung disorders. Among many pathological phenotypes, pulmonary fibrosis is the most devastating and represents a characteristic sign of idiopathic pulmonary fibrosis (IPF). Despite a poor prognosis brought by pulmonary fibrosis, there are no specific diagnostic biomarkers for the initial development of this fatal condition.
View Article and Find Full Text PDFStructural and evolutionary insights into the functioning of glycoprotein hormones and their receptors.
Andrology
January 2025
Department of Biochemistry and Molecular Biophysics, Columbia University, New York, New York, USA.
The neuroendocrine system that comprises the glycoprotein hormones (GpHs) and their receptors is essential for reproduction and metabolism. Each GpH hormone is an αβ heterodimer of cystine-knot proteins and its cognate receptor is a G-protein coupled receptor (GPCR) distinguished by a large leucine-rich-repeat (LRR) extracellular domain that binds the hormone and a class A GPCR transmembrane domain that signals through an associating heterotrimeric G protein. Hence, the receptors are called LRR-containing GPCRs-LGRs.
View Article and Find Full Text PDFThe ABC transporter A7 modulates neuroinflammation via NLRP3 inflammasome in Alzheimer's disease mice.
Alzheimers Res Ther
January 2025
Translational Neurodegeneration Research and Neuropathology Lab, Department of Clinical Medicine (KlinMed), Medical Faculty, University of Oslo (UiO) and Section of Neuropathology Research, Department of Pathology (PAT), Clinics for Laboratory Medicine (KLM), Oslo University Hospital (OUS), Sognsvannsveien 20, Oslo, NO-0372, Norway.
Background: Specific genetic variants in the ATP-binding cassette transporter A7 locus (ABCA7) are associated with an increased risk of Alzheimer's disease (AD). ABCA7 transports lipids from/across cell membranes, regulates Aβ peptide processing and clearance, and modulates microglial and T-cell functions to maintain immune homeostasis in the brain. During AD pathogenesis, neuroinflammation is one of the key mechanisms involved.
View Article and Find Full Text PDFhUC-MSCs Prevent Acute High-Altitude Injury through Apoe/Pdgf-b/p-Erk1/2 Axis in Mice.
Stem Cell Rev Rep
January 2025
Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
Background: The hypobaric hypoxic atmosphere can cause adverse reactions or sickness. The purpose of this study was to explore the preventive effect and mechanism of human umbilical cord mesenchymal stem cells (hUC-MSCs) on acute pathological injury in mice exposed to high-altitude.
Methods: We pretreated C57BL/6 mice with hUC-MSCs via the tail vein injection, and then the mice were subjected to hypobaric hypoxic conditions for five days.
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