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Circulation: A new mechanism of early-onset atherosclerosis in a premature aging syndrome

Researchers at CNIC have identified endothelial-to-mesenchymal transition as a novel mechanism in premature atherosclerosis in progeria. The study proposes a new therapeutic target for this disease and highlights the importance of investigating rare diseases like progeria.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalCirculation·TypeExperimental study·DateSep 10, 2024

Researchers create human aortic aneurysm model to advance disease understanding, treatment testing

Scientists have developed a functional model of thoracic aortic aneurysm using human cells in laboratory rats, offering new avenues for drug development and effective screening. The model successfully mimics dilation of the human aorta and has potential applications for treating this potentially fatal condition.

SourceMichigan Medicine - University of Michigan·JournalScience Translational Medicine·TypeExperimental study·DateMay 14, 2024

Spanish scientists identify the key cell type for strategies to prevent atherosclerosis in progeria syndrome

Researchers discovered that eliminating progerin from vascular smooth muscle cells prevents atherosclerosis and improves life expectancy in HGPSrev mice. This finding suggests a potential therapeutic strategy for treating progeria, an extremely rare genetic disease affecting 1 in every 20 million people.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 22, 2024

Researchers uncover why a gene mutant causes young children to have strokes

Researchers discovered that a mutation in the gene ACTA2 causes moyamoya disease and strokes in young children. The mutation leads to dysfunctional smooth muscle cells in arteries, resulting in blockages and increased risk of stroke. Understanding this mechanism could lead to new treatments for moyamoya disease.

SourceUniversity of Texas Health Science Center at Houston·JournalNature Cardiovascular Research·DateSep 28, 2023

Study identifies a new potential target for treating vascular disease

Researchers found that when FXR1 is absent, vascular smooth muscle cells proliferate more slowly, become senescent, and scar tissue development is reduced. This suggests that drugs targeting FXR1 may treat vascular proliferative diseases such as atherosclerosis, restenosis, hypertension, and abdominal aortic aneurysm.

SourceElsevier·JournalAmerican Journal Of Pathology·TypeExperimental study·DateMay 2, 2023

Gene essential to making DNA appears to be a good target in minimizing pulmonary hypertension

Researchers discover that inhibiting a gene crucial for DNA production can significantly reduce destructive cell proliferation and disease progression in pulmonary hypertension. This finding presents a potential treatment target for the condition, which affects females aged 30-60 with limited treatment options.

SourceMedical College of Georgia at Augusta University·JournalEuropean Heart Journal·DateMar 14, 2023

Research team at NYU Tandon discovers mechanical basis for abdominal aortic aneurysm

Researchers at NYU Tandon have discovered the mechanical basis for abdominal aortic aneurysm (AAA), a complex vascular disease. They identified Piezo1, a novel culprit of mechanically fatigued aorta in AAA, and found that inhibition of Piezo1 prevents mice from developing AAA by alleviating pathological vascular remodeling.

SourceNYU Tandon School of Engineering·JournalNature Communications·TypeExperimental study·DateJan 28, 2022

Here's something that will raise your blood pressure

Researchers found that activating the apelin receptor led to increased blood pressure due to vasoconstriction, a process also affected by the α1A-adrenergic receptor. The study suggests a coordinated mechanism controlling blood vessel contraction and may support therapy development for vascular stenosis and vasospasm.

SourceUniversity of Tsukuba·JournalThe Journal of Biochemistry·DateNov 1, 2019

What controls blood flow in the brain?

New research reveals that smooth muscle cells surrounding brain blood vessels regulate blood flow in response to neuronal activity. The study contradicts previous theories on pericytes' role in blood vessel formation and function.

SourceCell Press·JournalNeuron·DateJun 25, 2015

Molecular imaging predicts risk for abdominal aortic aneurysms

Researchers identify markers that can predict rupture in abdominal aortic aneurysms, including dense white blood cells and C-reactive protein levels. The study suggests that PET/CT scans with positive uptake could provide diagnostic support for surgery, while negative uptake may indicate safe avoidance of unnecessary procedures.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateOct 3, 2013

G proteins regulate remodelling of blood vessels

Researchers at the Max Planck Institute have discovered how external signals regulate vascular remodelling through G protein-mediated signalling pathways. These pathways work together in other contexts but act as antagonists in blood vessel remodelling, balancing cell growth and regression.

SourceMax-Planck-Gesellschaft·JournalJournal of Experimental Medicine·DateNov 13, 2012

Aging, interrupted

Scientists at Salk Institute successfully generated induced pluripotent stem cells from patients with Hutchinson-Gilford Progeria Syndrome, a rare disorder that accelerates aging. The cells displayed signs of vascular aging and were differentiated into smooth muscle cells that showed premature aging phenotypes.

SourceSalk Institute·JournalNature·DateFeb 23, 2011

Pitt team grows arteries with most elastic protein reported, big step for living vascular grafts

Pitt researchers have successfully grown arteries with high elasticity using baboon smooth muscle cells, containing 20% of the protein elastin found in natural arteries. The process resembles how it would be used in a patient and has the potential to overcome a major barrier to creating living-tissue replacements for damaged arteries.

SourceUniversity of Pittsburgh·JournalProceedings of the National Academy of Sciences·DateJan 31, 2011

A novel mechanism of action for anti-tumor agent, CA4P

Researchers discover that CA4P selectively targets endothelial cells, inducing regression of unstable blood vessels by disrupting VE-cadherin signaling. This breakthrough could lead to new avenues for targeting tumor neo-vessels and increasing the therapeutic window of anti-angiogenic agents.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 6, 2005

Targeting tumor growth

Researchers discover that MT1-MMP controls blood vessel response to PDGF-ß signaling, essential for normal vessel formation. MT1-MMP-null mice exhibit severely compromised vascular architecture, suggesting potential therapeutic targets for controlling tumor growth and metastasis.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMar 31, 2005