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Prognostic and clinicopathological significance of LOXL2 in cancers: A systematic review and meta‐analysis
Author(s) -
Zhang Xuerui,
Huang Junfu,
You Fan,
Li Wang,
Zou Zhenhong
Publication year - 2019
Publication title -
journal of cellular physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.529
H-Index - 174
eISSN - 1097-4652
pISSN - 0021-9541
DOI - 10.1002/jcp.28746
Subject(s) - meta analysis , lysyl oxidase , medicine , hazard ratio , odds ratio , oncology , lymph node metastasis , elastin , confidence interval , gastroenterology , pathology , extracellular matrix , metastasis , cancer , biology , microbiology and biotechnology
Abstract Background Lysyl oxidase‐like 2 (LOXL2) is an extracellular matrix (ECM)‐modifying enzyme which can regulate the tensile strength of connective tissues by crosslink of collagen and elastin. Numerous studies have claimed correlations between LOXL2 expression and prognosis or clinicopathological characteristics in various cancers. However, the validities of these claims are still in question. To address these experimental results, a meta‐analysis was done to assess the prognostic and clinicopathological significance of LOXL2 expression in various cancers. Methods The keywords were used for searching systematically in PubMed, Web of Science, Embase, Wanfang database, and CNKI. Stata SE15.0 was used for meta‐analysis. The hazard ratio (HR) and odds ratios (ORs) were pooled to assess the relationship between LOXL2 expression and overall survival (OS), disease‐free survival (DFS), and clinicopathological parameters. Results Seventeen studies with 3,881 patients were considered as valid studies. The results indicated that the patients who had a positive LOXL2 expression had a shorter OS (HR 1.60, 95% CI 1.26–1.94, p < 0.001) or DFS (HR 1.46, 95% CI 1.14–1.78, p < 0.001). For clinicopathological parameters, statistical significances were presented in age (OR 1.34, 95% CI 1.13–1.58, p = 0.001), lymph node metastasis (OR 2.20, 95% CI 1.37–3.53, p < 0.001), tumor size (OR 1.46, 95% CI 1.15–1.85, p = 0.002), and vascular invasion (OR 1.82, 95% CI 1.33–2.48, p < 0.001). Conclusions The results demonstrate that positive LOXL2 expression presents poorer OS and worse clinicopathological parameters. LOXL2 may be an effective biomarker to evaluate the prognosis in different type of cancers.