نتایج جستجو برای: hutchinson gilford
تعداد نتایج: 1970 فیلتر نتایج به سال:
Hutchinson-Gilford progeria syndrome (HGPS) is a rare autosomal dominant genetic disease that is caused by a silent mutation of the LMNA gene encoding lamins A and C (lamin A/C). The G608G mutation generates a more accessible splicing donor site than does WT and produces an alternatively spliced product of LMNA called progerin, which is also expressed in normal aged cells. In this study, we det...
In the past decade, a wide range of fascinating monogenic diseases have been linked to mutations in the LMNA gene, which encodes the A-type nuclear lamins, intermediate filament proteins of the nuclear envelope. These diseases include dilated cardiomyopathy with variable muscular dystrophy, Dunnigan-type familial partial lipodystrophy, a Charcot-Marie-Tooth type 2 disease, mandibuloacral dyspla...
Hutchinson-Gilford progeria syndrome (HGPS) is a premature aging disorder, commonly caused by a point mutation in the lamin A gene that results in a protein lacking 50 aa near the C terminus, denoted LADelta50. Here we show by light and electron microscopy that HGPS is associated with significant changes in nuclear shape, including lobulation of the nuclear envelope, thickening of the nuclear l...
Lamins, the major components of the nuclear lamina, have gained rapidly increasing interest over the past decade as lamin mutations were found to cause numerous devastating diseases. These laminopathies include Emery–Dreifuss muscular dystrophy (EDMD), dilated cardiomyopathy type 1A, limb-girdle muscular dystrophy type 1B, familial partial lipodystrophy (FPLD), Charcot–Marie–Tooth disease type ...
gamma-Ray sensitivity for cell killing was assayed in 54 human cell strains, including some derived from individuals suffering from certain heritable diseases. The overall range of Do values in this study was 38 to 180 rads, indicating a considerable range of variability in humans. The normal sensitivity was described by a range of Do values of 97 to 180 rads. All ten ataxia telangiectasia cell...
Lipodystrophies, characterized by partial or complete loss of adipose tissue, have been associated with mutations in the lamin A gene. It remains unclear how lamin A mutants interfere with adipose tissue formation. Hutchinson-Gilford progeria syndrome (HGPS) presents the most severe form of lamin A-associated diseases, whose patients show a complete loss of subcutaneous fat. Using iPSCs reprogr...
Hutchinson-Gilford progeria syndrome (HGPS) patients do not develop cancer despite a significant accumulation of DNA damage in their cells. We have recently reported that HGPS cells are refractory to experimental oncogenic transformation and we identified the bromodomain-containing 4 protein (BRD4) as a mediator of the transformation resistance. ChIP-sequencing experiments revealed distinct gen...
The fifth U.K. meeting on nuclear envelope disease and chromatin brought together international experts from across the field of nuclear envelope biology to discuss the advancements in a class of tissue-specific degenerative diseases called the laminopathies. Clinically, these range from relatively mild fat-wasting disorders to the severe premature aging condition known as Hutchinson-Gilford pr...
Zmpste24 (also called FACE-1) is a metalloproteinase involved in the maturation of lamin A, an essential component of the nuclear envelope. Zmpste24-deficient mice exhibit multiple defects that phenocopy human accelerated aging processes such as Hutchinson-Gilford progeria syndrome. In this work, we report that progeroid Zmpste24(-/-) mice present profound transcriptional alterations in genes t...
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