Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 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\26038677
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Inflamm+(Lond)
2015 ; 12
(ä): 38
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Sera from patients with active systemic lupus erythematosus patients enhance the
toll-like receptor 4 response in monocyte subsets
#MMPMID26038677
Carvalheiro T
; Gomes D
; Pinto LA
; Inês L
; Lopes A
; Henriques A
; Pedreiro S
; Martinho A
; Trindade H
; Young HA
; da Silva JA
; Paiva A
J Inflamm (Lond)
2015[]; 12
(ä): 38
PMID26038677
show ga
BACKGROUND: Systemic Lupus Erythematosus (SLE) is an auto-immune disease whose
complex pathogenesis remains unraveled. Here we aim to explore the inflammatory
ability of SLE patients' sera upon peripheral blood (PB) monocyte subsets and
myeloid dendritic cells (mDCs) obtained from healthy donors. METHODS: In this
study we included 11 SLE patients with active disease (ASLE), 11 with inactive
disease (ISLE) and 10 healthy controls (HC). PB from healthy donors was
stimulated with patients' sera, toll-like receptor (TLR) 4 ligand -
lipopolysaccharide or both. The intracellular production of TNF-? was evaluated
in classical, non-classical monocytes and mDCs, using flow cytometry. TNF-? mRNA
expression was assessed in all these purified cells, after sera treatment.
RESULTS: We found that sera of SLE patients did not change spontaneous TNF-?
production by monocytes or dendritic cells. However, upon stimulation of TLR4,
the presence of sera from ASLE patients, but not ISLE, significantly increased
the intracellular expression of TNF-? in classical and non-classical monocytes.
This ability was related to titers anti-double stranded DNA antibodies in the
serum. High levels of anti-TNF-? in the patients' sera were associated with
increased TNF-? expression by co-cultured mDCs. No relationship was found with
the levels of a wide variety of other pro-inflammatory cytokines. A slight
increase of TNF-? mRNA expression was observed in these purified cells when they
were cultured only in the presence of SLE serum. CONCLUSIONS: Our data suggest
that SLE sera induce an abnormal in vitro TLR4 response in classical and
non-classical monocytes, reflected by a higher TNF-? intracellular expression.
These effects may be operative in the pathogenesis of SLE.