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JOURNAL ARTICLE
MULTICENTER STUDY
OBSERVATIONAL STUDY
Prognostic impact of serum soluble LR11 in newly diagnosed diffuse large B-cell lymphoma: A multicenter prospective analysis.
BACKGROUND: LR11 (also called SorLA or SORL1) is a type I membrane protein, originally identified as a biomarker for atherosclerosis and Alzheimer's disease. We recently found that LR11 was specifically expressed in Diffuse Large B-cell lymphoma (DLBCL) cells, and high serum sLR11 concentrations in retrospective cohort indicated inferior survival. In this study, we prospectively validated the clinical impact of serum sLR11 in 97 patients with newly-diagnosed, untreated DLBCL.
RESULTS: Serum sLR11 concentrations were increased in DLBCL patients compared to normal controls (mean±SD: 21.2±27.6 vs. 8.8±1.8ng/ml, P<0.0001), and significantly reduced at remission (mean±SD: 17.4±16.4 vs. 10.9±4.5ng/ml, P=0.02). Increased serum sLR11 concentrations were affected by tumor burden and bone marrow invasion. The 2-y OS and PFS were significantly lower in patients with high sLR11 concentrations (≤18.1ng/ml vs. >18.1ng/ml; 2-y OS: 89.0% vs. 56.4%, P<0.0001; 2-y PFS: 85.8% vs. 56.9%, P<0.0001).
CONCLUSIONS: Serum sLR11 is a tumor-derived biomarker for predicting the survival of newly diagnosed patients with DLBCL.
RESULTS: Serum sLR11 concentrations were increased in DLBCL patients compared to normal controls (mean±SD: 21.2±27.6 vs. 8.8±1.8ng/ml, P<0.0001), and significantly reduced at remission (mean±SD: 17.4±16.4 vs. 10.9±4.5ng/ml, P=0.02). Increased serum sLR11 concentrations were affected by tumor burden and bone marrow invasion. The 2-y OS and PFS were significantly lower in patients with high sLR11 concentrations (≤18.1ng/ml vs. >18.1ng/ml; 2-y OS: 89.0% vs. 56.4%, P<0.0001; 2-y PFS: 85.8% vs. 56.9%, P<0.0001).
CONCLUSIONS: Serum sLR11 is a tumor-derived biomarker for predicting the survival of newly diagnosed patients with DLBCL.
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