Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26160855
&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 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 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\26160855
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Mol+Cell+Biol
2015 ; 7
(5
): 429-40
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
HACD1, a regulator of membrane composition and fluidity, promotes myoblast fusion
and skeletal muscle growth
#MMPMID26160855
Blondelle J
; Ohno Y
; Gache V
; Guyot S
; Storck S
; Blanchard-Gutton N
; Barthélémy I
; Walmsley G
; Rahier A
; Gadin S
; Maurer M
; Guillaud L
; Prola A
; Ferry A
; Aubin-Houzelstein G
; Demarquoy J
; Relaix F
; Piercy RJ
; Blot S
; Kihara A
; Tiret L
; Pilot-Storck F
J Mol Cell Biol
2015[Oct]; 7
(5
): 429-40
PMID26160855
show ga
The reduced diameter of skeletal myofibres is a hallmark of several congenital
myopathies, yet the underlying cellular and molecular mechanisms remain elusive.
In this study, we investigate the role of HACD1/PTPLA, which is involved in the
elongation of the very long chain fatty acids, in muscle fibre formation. In
humans and dogs, HACD1 deficiency leads to a congenital myopathy with fibre size
disproportion associated with a generalized muscle weakness. Through analysis of
HACD1-deficient Labradors, Hacd1-knockout mice, and Hacd1-deficient myoblasts, we
provide evidence that HACD1 promotes myoblast fusion during muscle development
and regeneration. We further demonstrate that in normal differentiating
myoblasts, expression of the catalytically active HACD1 isoform, which is encoded
by a muscle-enriched splice variant, yields decreased lysophosphatidylcholine
content, a potent inhibitor of myoblast fusion, and increased concentrations of ?
C18 and monounsaturated fatty acids of phospholipids. These lipid modifications
correlate with a reduction in plasma membrane rigidity. In conclusion, we propose
that fusion impairment constitutes a novel, non-exclusive pathological mechanism
operating in congenital myopathies and reveal that HACD1 is a key regulator of a
lipid-dependent muscle fibre growth mechanism.