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Overexpression of stathmin 1 is associated with poor prognosis of patients with gastric cancer.

Abstract
Recently, stathmin 1 has been proposed to function as an oncogene based on some relevant studies in multiple types of human cancers. However, the role of stathmin 1 in gastric cancer carcinogenesis has not been elucidated yet. The aim of this study was to investigate the expression of stathmin 1 as well as its association with overall survival of gastric cancer patients. The expression of stathmin 1 was detected by real-time quantitative reverse transcription polymerase chain reaction and Western blotting in gastric cancer and adjacent nontumor tissues. In addition, stathmin 1 expression was analyzed by immunohistochemistry in paraffin samples from 210 primary gastric cancer patients. The expression levels of stathmin 1 mRNA and protein in gastric cancer tissues were both significantly higher than those in adjacent nontumor tissues. In addition, the expression of stathmin 1 is correlated with Lauren's classification, depth of invasion, lymph node metastases, and tumor node metastasis (TNM) stage (all P < 0.05). Univariate analysis showed that high stathmin 1 expression was associated with poor prognosis in gastric cancer patients (P = 0.040). Multivariate analysis demonstrated that only lymph node metastasis and TNM stage were the independent prognostic indicators for gastric cancer. Stathmin 1 expression status is not an independent prognostic factor for patients with gastric cancer. Further subgroup analysis revealed that stathmin 1 expression was significantly correlated with prognosis in diffuse type gastric cancer. This research showed that the stathmin 1 overexpression might play an important role in the pathogenesis and subsequent progression of gastric cancer. Stathmin 1 could also be a potential therapeutic target in gastric cancer, especially for diffuse type gastric cancer.
AuthorsBin Ke, Liang-Liang Wu, Ning Liu, Ru-Peng Zhang, Chang-Li Wang, Han Liang
JournalTumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine (Tumour Biol) Vol. 34 Issue 5 Pg. 3137-45 (Oct 2013) ISSN: 1423-0380 [Electronic] Netherlands
PMID23760979 (Publication Type: Journal Article)
Chemical References
  • STMN1 protein, human
  • Stathmin
Topics
  • Adenocarcinoma (metabolism, mortality, secondary)
  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • Gene Expression
  • Humans
  • Kaplan-Meier Estimate
  • Lymphatic Metastasis
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Prognosis
  • Proportional Hazards Models
  • Stathmin (genetics, metabolism)
  • Stomach Neoplasms (metabolism, mortality, pathology)
  • Young Adult

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