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Minerva Chirurgica 2019 October;74(5):422-30

DOI: 10.23736/S0026-4733.17.07325-4

Copyright © 2017 EDIZIONI MINERVA MEDICA

language: English

Deregulated HOXB7 expression predicts poor prognosis of patients with malignancies of digestive system

Fang-Teng LIU 1, Han-Min CHEN 2, Ying XIONG 2, Zheng-Ming ZHU 1

1 Department of General Surgery, the Second Affiliated Hospital of Nanchang University, Nanchang, China; 2 The Second Clinical Medical College of Nanchang University, Nanchang, China



INTRODUCTION: Numerous studies have investigated the relationship between deregulated HOXB7 expression with the clinical outcome in patients with digestive stem cancers, HOXB7 has showed negative impacts but with varying levels. We aimed to comprehensively evaluate the prediction and prognostic value of HOXB7 in digestive stem cancers.
EVIDENCE ACQUISITION: Electronic databases updated to December 1st, 2016 were retrieved to collect relevant eligible studies to quantitatively explore the potential roles of HOXB7 as a prognostic indicator in digestive system cancers.
EVIDENCE SYNTHESIS: A total of 9 studies (N.=1298) was included in this synthetical meta-analysis. The pooled hazard ratios suggested that high expression of HOXB7 protein was associated with poor prognosis of OS in patients with digestive system cancers (HR=1.97, 95% CI: 1.65-2.28, P=0.000), and HOXB7 protein could act as an independent prognostic factor for predicting OS of patients with digestive system cancers (HR=2.02, 95% CI: 1.69-2.36, P=0.000). Statistical significance was also observed in subgroup meta-analysis based on the cancer type, histology type, country, sample size and publication date. Furthermore, we examined the correlations between HOXB7 protein and clinicopathological features. It showed that altered expression of HOXB7 protein was correlated with tumor invasion (P=0.000), lymph node status (P=0.000), distant metastasis (P=0.001) and TNM stage (P=0.000). However, the expression of HOXB7 protein was not associated with age (P=0.64), gender (P=0.40) or levels of differentiation (P=0.19).
CONCLUSIONS: High expression of HOXB7 protein was associated with poor prognosis of patients with digestive system cancers, as well as clinicopathologic characteristics, including the tumor invasion, lymph node status, distant metastasis and TNM stage. The expression of HOXB7 protein was not associated with age, gender or levels of differentiation. HOXB7 protein expression level in tumor tissue might serve as a novel prognostic marker for digestive system cancers.


KEY WORDS: Human HOXB7 protein; Digestive system neoplasms; Prognosis

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