Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=29776986
&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 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 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\29776986
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Blood+Adv
2018 ; 2
(10
): 1130-1145
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The characteristics of vessel lining cells in normal spleens and their role in
the pathobiology of myelofibrosis
#MMPMID29776986
Qiu J
; Salama ME
; Hu CS
; Li Y
; Wang X
; Hoffman R
Blood Adv
2018[May]; 2
(10
): 1130-1145
PMID29776986
show ga
The CD34(-)CD8?(+), sinusoid lining, littoral cells (LCs), and CD34(+)CD8?(-),
splenic vascular endothelial cells (SVECs) represent 2 distinct cellular types
that line the vessels within normal spleens and those of patients with
myelofibrosis (MF). To further understand the respective roles of LCs and SVECs,
each was purified from normal and MF spleens, cultured, and characterized. Gene
expression profiling indicated that LCs were a specialized type of SVEC. LCs
possessed a distinct gene expression profile associated with cytoskeleton
regulation, cellular interactions, endocytosis, and iron transport. LCs also were
characterized by strong phagocytic activity, less robust tube-forming capacity
and a limited proliferative potential. These characteristics underlie the role of
LCs as cellular filters and scavengers. Although normal LCs and SVECs produced
overlapping as well as distinct hematopoietic factors and adhesion molecules, the
gene expression profile of MF LCs and SVECs distinguished them from their normal
counterparts. MF SVECs were characterized by activated interferon signaling and
cell cycle progression pathways and increased vascular endothelial growth factor
receptor, angiopoietin-2, stem cell factor, interleukin (IL)-33, Notch ligands,
and IL-15 transcripts. In contrast, the transcription profile of MF LCs was
associated with mitochondrial dysfunction, reduced energy production, protein
biosynthesis, and catabolism. Normal SVECs formed in vitro confluent cell layers
that supported MF hematopoietic colony formation to a greater extent than normal
colony formation. These data provide an explanation for the reduced density of
LCs observed within MF spleens and indicate the role of SVECs in the development
of extramedullary hematopoiesis in MF.