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A-type lamins and cardiovascular disease in premature aging syndromes
Beatriz Dorado1, Vicente Andrés1
1Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), CIBER de Enfermedades Cardiovasculares, Madrid, Spain.
Insights
Abnormal accumulation of prelamin A and progerin causes premature aging syndromes and cardiovascular disease. Understanding these mechanisms is key to developing therapies for progeria and aging.
Area of Science:
- Cell biology
- Genetics
- Cardiovascular medicine
Background:
- Lamin A is a crucial nuclear protein in mammalian cells.
- Mutations or precursor accumulation (prelamin A, progerin) lead to progeroid laminopathies.
- These syndromes involve severe cardiovascular issues and premature death.
Purpose of the Study:
- To review studies on how abnormal prelamin A and progerin accelerate cardiovascular disease and aging.
- To explore therapeutic strategies for progeria.
- To identify mechanisms underlying normal aging.
Main Methods:
- Review of cell and mouse models.
- Analysis of patient studies.
- Synthesis of existing research.
Main Results:
- Abnormal prelamin A and progerin accumulation are strongly linked to accelerated cardiovascular disease.
- These protein abnormalities contribute to premature aging phenotypes.
- Insights gained from progeria models offer potential for understanding normal aging.
Conclusions:
- Targeting prelamin A and progerin accumulation may offer effective therapies for progeria.
- Research into progeroid laminopathies provides valuable insights into cardiovascular aging.
- Further understanding of these pathways could reveal novel therapeutic targets for age-related diseases.
Abstract:
Lamin A is a nuclear intermediate filament protein with important structural and regulatory roles in most differentiated mammalian cells. Excessive accumulation of its precursor prelamin A or the mutant form called 'progerin' causes premature aging syndromes. Progeroid 'laminopathies' are characterized by severe cardiovascular problems (cardiac electrical defects, vascular calcification and stiffening, atherosclerosis, myocardial infarction, and stroke) and premature death. Here, we review studies in cell and mouse models and patients that are unraveling how abnormal prelamin A and progerin accumulation accelerates cardiovascular disease and aging. This knowledge is essential for developing effective therapies to treat progeria and may help identify new mechanisms underlying normal aging.
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