Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26847180
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26847180
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Histochem+Cell+Biol
2016 ; 145
(4
): 401-17
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Molecular insights into the premature aging disease progeria
#MMPMID26847180
Vidak S
; Foisner R
Histochem Cell Biol
2016[Apr]; 145
(4
): 401-17
PMID26847180
show ga
Hutchinson-Gilford progeria syndrome (HGPS) is an extremely rare premature aging
disease presenting many features resembling the normal aging process. HGPS
patients die before the age of 20 years due to cardiovascular problems and heart
failure. HGPS is linked to mutations in the LMNA gene encoding the intermediate
filament protein lamin A. Lamin A is a major component of the nuclear lamina, a
scaffold structure at the nuclear envelope that defines mechanochemical
properties of the nucleus and is involved in chromatin organization and
epigenetic regulation. Lamin A is also present in the nuclear interior where it
fulfills lamina-independent functions in cell signaling and gene regulation. The
most common LMNA mutation linked to HGPS leads to mis-splicing of the LMNA mRNA
and produces a mutant lamin A protein called progerin that tightly associates
with the inner nuclear membrane and affects the dynamic properties of lamins.
Progerin expression impairs many important cellular processes providing insight
into potential disease mechanisms. These include changes in mechanosignaling,
altered chromatin organization and impaired genome stability, and changes in
signaling pathways, leading to impaired regulation of adult stem cells, defective
extracellular matrix production and premature cell senescence. In this review, we
discuss these pathways and their potential contribution to the disease
pathologies as well as therapeutic approaches used in preclinical and clinical
tests.