Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 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\28276635
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Cell+Mol+Med
2017 ; 21
(6
): 1073-1084
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
3D culture increases pluripotent gene expression in mesenchymal stem cells
through relaxation of cytoskeleton tension
#MMPMID28276635
Zhou Y
; Chen H
; Li H
; Wu Y
J Cell Mol Med
2017[Jun]; 21
(6
): 1073-1084
PMID28276635
show ga
Three-dimensional (3D) culture has been shown to improve pluripotent gene
expression in mesenchymal stem cells (MSCs), but the underlining mechanisms were
poorly understood. Here, we found that the relaxation of cytoskeleton tension of
MSCs in 3D culture was critically associated with the expressional up-regulation
of Nanog. Cultured in spheroids, MSCs showed decreased integrin-based cell-matrix
adhesion but increased cadherin-based cell-cell interaction. Different from that
in 2D culture, where MSCs exhibited branched and multiple-directed F-actin stress
bundles at the cell edge and strengthened stress fibres transversing the cell
body, MSCs cultured in spheroids showed compact cell body, relaxed cytoskeleton
tension with very thin cortical actin filament outlining the cell, and increased
expression of Nanog along with reduced levels of Suv39h1 (H3K9 methyltransferase)
and H3K9me3. Notably, pharmaceutical inhibition of actin polymerization with
cytochalasin D or silencing Suv39h1 expression with siRNA in 2D-cultured MSCs
elevated the expression of Nanog via H3K9 demethylation. Thus, our data suggest
that 3D culture increases the expression of Nanog through the relaxation of actin
cytoskeleton, which mediates reduced Suv39h1 and H3K9me3 levels.