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2016 ; 84
(5
): 299-309
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Therapeutic Potential for Targeting the Suppressor of Cytokine Signalling-1
Pathway for the Treatment of SLE
#MMPMID27781323
Sukka-Ganesh B
; Larkin J 3rd
Scand J Immunol
2016[Nov]; 84
(5
): 299-309
PMID27781323
show ga
Although the specific events dictating systemic lupus erythematosus (SLE)
pathology remain unclear, abundant evidence indicates a critical role for
dysregulated cytokine signalling in disease progression. Notably, the suppressor
of cytokine signalling (SOCS) family of intracellular proteins, in particular the
kinase inhibitory region (KIR) bearing SOCS1 and SOCS3, plays a critical role in
regulating cytokine signalling. To assess a relationship between SOCS1/SOCS3
expression and SLE, the goals of this study were to (1) evaluate the time
kinetics of SOCS1/SOCS3 message and protein expression based on SLE-associated
stimulations, (2) compare levels of SOCS1 and SOCS3 present in SLE patients and
healthy controls by message and protein, (3) relate SOCS1/SOCS3 expression to
inflammatory markers in SLE patients and (4) correlate SOCS1/SOCS3 levels to
current treatments. We found that SOCS1 and SOCS3 were most abundant in murine
splenic samples at 48 h subsequent to stimulation by anti-CD3, LPS or
interferon-gamma. In addition, significant reductions in SOCS1 and SOCS3 were
present within PMBCs of SLE patients compared to controls by both mRNA and
protein expression. We also found that decreased levels of SOCS1 in SLE patients
were correlated with enhanced levels of inflammatory markers and upregulated
expression of MHC class II. Finally, we show that patients receiving steroid
treatment possessed higher levels SOCS1 compared to SLE patient counterparts and
that steroid administration to human PBMCs upregulated SOCS1 message in a dose-
and time-dependent manner. Together, these results suggest that therapeutic
strategies focused on SOCS1 signalling may have efficacy in the treatment of SLE.
|Adolescent
[MESH]
|Adult
[MESH]
|Aged
[MESH]
|Animals
[MESH]
|Anti-Inflammatory Agents/*therapeutic use
[MESH]
|Antibodies/pharmacology
[MESH]
|CD3 Complex/genetics/immunology
[MESH]
|Case-Control Studies
[MESH]
|Female
[MESH]
|Gene Expression Regulation
[MESH]
|Histocompatibility Antigens Class II/genetics/immunology
[MESH]