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Vascular calcification increases morbidity and mortality in patients with cardiovascular and renal diseases. Previously, we reported that histone deacetylase 1 prevents vascular calcification, whereas its E3 ligase, mouse double minute 2 homolog (MDM2), induces vascular calcification. In the present study, we identified the upstream regulator of MDM2. By utilizing cellular models and transgenic mice, we confirmed that E3 ligase activity is required for vascular calcification. By promoter analysis, we found that both msh homeobox 1 (Msx1) and msh homeobox 2 (Msx2) bound to the MDM2 promoter region, which resulted in transcriptional activation of MDM2. The expression levels of both Msx1 and Msx2 were increased in mouse models of vascular calcification and in calcified human coronary arteries. Msx1 and Msx2 potentiated vascular calcification in cellular and mouse models in an MDM2-dependent manner. Our results establish a novel role for MSX1/MSX2 in the transcriptional activation of MDM2 and the resultant increase in MDM2 E3 ligase activity during vascular calcification.
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http://dx.doi.org/10.1038/s12276-021-00708-6 | DOI Listing |
Cureus
August 2025
Neurosurgery, Tokyo Metropolitan Hiroo Hospital, Tokyo, JPN.
Background: Vascular calcification represents ectopic deposition of calcium phosphate in the arterial wall. Component analysis of calcifications using dual-energy computed tomography (DECT) has helped to elucidate arteriosclerosis, but reports examining carotid calcified plaque remain lacking. The present study qualitatively evaluated calcifications using DECT in patients with stroke in our institution.
View Article and Find Full Text PDFMedicine (Baltimore)
September 2025
Department of Neurology, The First Hospital of Hebei Medical University, Shijiazhuang, China.
Chronic cerebral artery occlusion is an important cause of cerebral ischemic events. Endovascular recanalization is an effective treatment for this condition, but its success depends on appropriate patient selection and assessment. This is a retrospective study that collected patients with chronic cerebral artery occlusion who underwent endovascular recanalization to determine how imaging features from computed tomography angiography - including the extent of internal carotid artery occlusion, the number of calcified vessels, and the degree of calcification in the occluded vessels - affect the success rate of recanalization.
View Article and Find Full Text PDFFront Cardiovasc Med
August 2025
Heart and Vascular Centre, Semmelweis University, Budapest, Hungary.
Objectives: Rheumatoid arthritis (RA) is associated with increased cardiovascular (CV) risk, yet the mechanisms remain unclear. This study aimed to evaluate myocardial structure, function, and tissue characterization using cardiovascular magnetic resonance (CMR) in RA patients and explore associations with RA disease severity.
Methods: This mixed case-control study included 48 RA patients and 34 age- and sex-matched controls.
Eur J Vasc Endovasc Surg
September 2025
School of Health and Medical Sciences, City St George's University of London, London, UK; St George's Vascular Institute, St George's Hospital, London, UK; Department of Surgery and Cancer, Imperial College London, London, UK. Electronic address:
Objective: Sex specific anatomical differences may contribute to observed disparities in outcomes and suitability for endovascular aneurysm repair (EVAR) between men and women with abdominal aortic aneurysms (AAAs). This study aimed to assess these differences using fully automated volume segmentation (FAVS) and explore implications for EVAR suitability.
Methods: This was a retrospective, multicentre cohort study of patients undergoing elective AAA repair between 2013 and 2023 in three UK tertiary centres.
Vascul Pharmacol
September 2025
Department of Orthopaedic Surgery, Orthopaedic Hospital Research Center, UCLA, Los Angeles, CA 90095, USA; Center for Cardiovascular Science, University of Edinburgh, Edinburgh, UK. Electronic address:
The walls of all embryonic, foetal, and adult blood vessels contain mesodermal progenitors, distributed as pericytes in capillaries and micro vessels, and fibroblastic cells in the tunica adventitia of larger veins and arteries. Following dissociation, selection by flow cytometry, and culture, those perivascular cells turn into bona fide mesenchymal stem cells of which they possess all attributes. In vivo, the adventitial cellular niche supports several spatially-organized subsets of mesodermal progenitors biased toward either osteo-, adipo-, or fibrogenesis, and dominated by more primitive, multi-lineage stem-like cells.
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