Blocking protein farnesyltransferase improves nuclear shape in fibroblasts from humans with progeroid syndromes
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چکیده
منابع مشابه
Blocking protein farnesyltransferase improves nuclear shape in fibroblasts from humans with progeroid syndromes.
Defects in the biogenesis of lamin A from its farnesylated precursor, prelamin A, lead to the accumulation of prelamin A at the nuclear envelope, cause misshapen nuclei, and result in progeroid syndromes. A deficiency in ZMPSTE24, a protease involved in prelamin A processing, leads to prelamin A accumulation, an absence of mature lamin A, misshapen nuclei, and a lethal perinatal progeroid syndr...
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Hutchinson-Gilford progeria syndrome (HGPS), a progeroid syndrome in children, is caused by mutations in LMNA (the gene for prelamin A and lamin C) that result in the deletion of 50 aa within prelamin A. In normal cells, prelamin A is a "CAAX protein" that is farnesylated and then processed further to generate mature lamin A, which is a structural protein of the nuclear lamina. The mutant prela...
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Ageing is a process that inevitably affects most living organisms and involves the accumulation of macromolecular damage, genomic instability and loss of heterochromatin. Together, these alterations lead to a decline in stem cell function and to a reduced capability to regenerate tissue. In recent years, several genetic pathways and biochemical mechanisms that contribute to physiological ageing...
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Hutchinson-Gilford progeria syndrome (HGPS) is a rare genetic condition associated with mutations in the LMNA gene. This disease recapitulates some aspects of normal aging, such as hair loss, thin skin, joint stiffness, and atherosclerosis. The latter leads to heart attack or stroke that causes death at an average age of 14.6 years in children with HGPS. The typical LMNA mutation results in the...
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Syndromes of accelerated aging could provide an entry point for identifying and dissecting the cellular pathways that are involved in the development of age-related pathologies in the general population. However, their usefulness for aging research has been controversial, as it has been argued that these diseases do not faithfully reflect the process of natural aging. Here we review recent find...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2005
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0505767102