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2016 ; 68
(9
): 1303-9
Nephropedia Template TP
gab.com Text
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English Wikipedia
Axl, Ferritin, Insulin-Like Growth Factor Binding Protein 2, and Tumor Necrosis
Factor Receptor Type II as Biomarkers in Systemic Lupus Erythematosus
#MMPMID26749069
Mok CC
; Ding HH
; Kharboutli M
; Mohan C
Arthritis Care Res (Hoboken)
2016[Sep]; 68
(9
): 1303-9
PMID26749069
show ga
OBJECTIVE: To evaluate the performance of 4 serum protein markers for detecting
concurrent clinical activity in patients with systemic lupus erythematosus (SLE).
METHODS: Consecutive patients who fulfilled ?4 American College of Rheumatology
classification criteria for SLE and healthy controls were recruited for serologic
testing of 4 protein markers identified by antibody-coated microarray screen,
namely Axl, ferritin, insulin-like growth factor binding protein 2 (IGFBP-2), and
tumor necrosis factor receptor type II (TNFRII). SLE disease activity was
assessed by the Safety of Estrogens in Lupus Erythematosus National Assessment
version of the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) and
physician's global assessment (PGA). Levels of these markers were correlated with
SLEDAI scores, and their sensitivity and specificity for clinical SLE activity
were determined. RESULTS: A total of 94 SLE patients (98% women, mean?±?SD age
28.7?±?9.4 years, mean?±?SD disease duration 5.4?±?5.0 years) and 49 healthy
controls were studied. Fifty-two patients had clinically active SLE (defined as
SLEDAI score ?6 or having a flare). The serum concentrations of Axl, ferritin,
IGFBP-2, and TNFRII were significantly higher in patients with active SLE than in
those with inactive SLE or in controls. The levels of these markers correlated
strongly and significantly with anti-double stranded DNA (anti-dsDNA), C3, and
clinical SLEDAI and PGA scores. These markers were more specific, but less
sensitive, in detecting concurrent SLE activity than elevated anti-dsDNA or
depressed C3. Levels of Axl, TNFRII, and IGFBP-2, but not ferritin, could
differentiate active renal from active nonrenal or inactive SLE. The specificity
of Axl and IGFBP-2 for concurrent active lupus nephritis was higher than
anti-dsDNA or C3. CONCLUSION: Serum proteomic markers are potentially useful for
diagnosing SLE and monitoring disease activity. The performance of Axl and
IGFBP-2 in lupus nephritis should be further explored in a longitudinal cohort of
SLE patients.
|Adult
[MESH]
|Axl Receptor Tyrosine Kinase
[MESH]
|Biomarkers/*blood
[MESH]
|Female
[MESH]
|Ferritins/*blood
[MESH]
|High-Throughput Screening Assays
[MESH]
|Humans
[MESH]
|Insulin-Like Growth Factor Binding Protein 2/*blood
[MESH]