Urine angiostatin and VCAM-1 surpass conventional metrics in predicting elevated renal pathology activity indices in lupus nephritis.

The goal of this study is to investigate how urinary angiostatin, vascular cell adhesion molecule 1 (VCAM-1) and established measures of renal function relate to specific histologic findings in paired kidney biopsy samples from patients with lupus nephritis (LN). Urine samples were collected from 54 LN patients together with paired kidney biopsy samples and examined for urinary angiostatin and VCAM-1 protein levels. Nonparametric tests were used to examine the association of both urinary biomarkers and established traditional laboratory markers of renal function with nine specific renal histologic features seen in LN, including glomerular leukocyte infiltration, endocapillary proliferation, cellular crescents, fibrinoid necrosis, wire loops, interstitial inflammation, glomerulosclerosis, fibrous crescents, tubular atrophy and interstitial fibrosis. Compared to traditional renal disease metrics, both urinary angiostatin and VCAM-1 exhibited outstanding potential (area under the curve 0.97, 0.98, respectively) to predict renal biopsy activity index score ≥ 7, which is associated with poor long-term prognosis. Whereas urine VCAM-1 was most significantly associated with fibrous crescents, urine angiostatin was most significantly associated with endocapillary proliferation, cellular crescents, fibrinoid necrosis and fibrous crescents in concurrent renal biopsies. Urinary angiostatin and VCAM-1 are predictive of specific histological changes in concurrent LN renal biopsies. Both urinary biomarkers are good candidates for use as noninvasive measures of renal pathology activity changes in LN.

Soliman S ，Mohamed FA ，Ismail FM ，Stanley S ，Saxena R ，Mohan C ... -  《-》

Urinary angiostatin, CXCL4 and VCAM-1 as biomarkers of lupus nephritis.

Mok CC ，Soliman S ，Ho LY ，Mohamed FA ，Mohamed FI ，Mohan C ... -  《-》

Urine VCAM-1 as a marker of renal pathology activity index in lupus nephritis.

Singh S ，Wu T ，Xie C ，Vanarsa K ，Han J ，Mahajan T ，Oei HB ，Ahn C ，Zhou XJ ，Putterman C ，Saxena R ，Mohan C ... -  《-》

[Urinary soluble intercellular adhesion molecule-1 and vascular cellular adhesion molecule-1: potential biomarkers of active lupus nephritis].

Wu C ，Yang M ，Zhou Z ，Feng X ，Zhong X ，Cui S ，Wu L ，Cao W ... -  《-》

Analysis of clinicopathologic correlations in Iranian patients with lupus nephritis.

To determine clinical features of different histopathological presentations in patients with lupus nephritis (LN). Clinical and pathological features of 71 biopsy-proven LN patients were analyzed in a cross-sectional study during 2005-2011. Sixty-five women (91.5%) and six men (8.5%) were studied. The mean Activity Index (AI) and Chronicity Index (CI) were 6.2 ± 3.1 and 1.7 ± 1.5, respectively. The most common histopathologic presentation of kidneys was class IV (52.1%). Patients with more advanced International Society of Nephrology and the Renal Pathology Society (ISN/RPS) classes, had longer disease duration (P = 0.007), higher levels of blood urea nitrogen (P = 0.004) and serum creatinine (P = 0.035). The most frequent active lesion seen in renal biopsies was endocapillary hypercellularity (83.1%) while glomerular sclerosis was the most common chronic lesion (52.1%). Patients with chronic lesions, including glomerular sclerosis (P = 0.032), fibrous crescent (P = 0.001), interstitial fibrosis (P = 0.025) and tubular atrophy (P = 0.049) had higher serum creatinine levels. Hypertension was mainly seen in patients who had interstitial fibrosis and tubular atrophy (P = 0.026, 0.002 respectively). Moreover, subjects with renal failure had been more frequently involved with fibrinoid necrosis/karyorrhexis (P = 0.003), interstitial inflammation (P = 0.009), fibrous crescents (P = 0.041), tubular atrophy (P = 0.008) and interstitial fibrosis (P < 0.001). We found that both histopathologic classification (ISN/RPS criteria) and histopathologic grading (US National Institutes of Health activity and chronicity indices) correlate to some clinical manifestations of LN. Considering these correlations may help to determine the patients' clinicopathologic status, prognosis and the need to immediate treatment. Nevertheless, it is necessary to clarify the accuracy of these findings in larger-scale prospective studies.

Shariati-Sarabi Z ，Ranjbar A ，Monzavi SM ，Esmaily H ，Farzadnia M ，Zeraati AA ... -  《-》