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2016 ; 6
(ä): 27623
Nephropedia Template TP
Lee JR
; Haddon DJ
; Wand HE
; Price JV
; Diep VK
; Hall DA
; Petri M
; Baechler EC
; Balboni IM
; Utz PJ
; Wang SX
Sci Rep
2016[Jun]; 6
(ä): 27623
PMID27279139
show ga
High titer, class-switched autoantibodies are a hallmark of systemic lupus
erythematosus (SLE). Dysregulation of the interferon (IFN) pathway is observed in
individuals with active SLE, although the association of specific autoantibodies
with chemokine score, a combined measurement of three IFN-regulated chemokines,
is not known. To identify autoantibodies associated with chemokine score, we
developed giant magnetoresistive (GMR) biosensor microarrays, which allow the
parallel measurement of multiple serum antibodies to autoantigens and peptides.
We used the microarrays to analyze serum samples from SLE patients and found
individuals with high chemokine scores had significantly greater reactivity to 13
autoantigens than individuals with low chemokine scores. Our findings demonstrate
that multiple autoantibodies, including antibodies to U1-70K and modified histone
H2B tails, are associated with IFN dysregulation in SLE. Further, they show the
microarrays are capable of identifying autoantibodies associated with relevant
clinical manifestations of SLE, with potential for use as biomarkers in clinical
practice.
|Autoantibodies/*blood/immunology
[MESH]
|Biosensing Techniques/*methods
[MESH]
|Case-Control Studies
[MESH]
|Humans
[MESH]
|Immunoassay/*methods
[MESH]
|Interferons/*immunology
[MESH]
|Lupus Erythematosus, Systemic/*blood
[MESH]
|Molecular Diagnostic Techniques/*methods
[MESH]
|Protein Array Analysis/*methods
[MESH]
|Ribonucleoprotein, U1 Small Nuclear/immunology
[MESH]