China Journal of Oral and Maxillofacial Surgery ›› 2018, Vol. 16 ›› Issue (3): 231-236.doi: 10.19438/j.cjoms.2018.03.008

• Original Articles • Previous Articles     Next Articles

Expression of Cdc42 in tongue squamous cell carcinoma and its clinical significance

LIAO Yi-xiang1,2, KONG Qing-nuan3, GUO Qing-yuan2, HE Zong-xuan1,2, QIU Jing2, CHEN Zheng-gang2.   

  1. 1.Qingdao University. Qingdao 266000;
    2.Department of Stomatology,
    3.Department of Pathology, Qingdao Municipal Hospital Affiliated to Qingdao University. Qingdao 266000, Shandong Province, China
  • Received:2017-09-18 Revised:2017-10-20 Online:2018-05-20 Published:2018-06-12

Abstract: PURPOSE: To investigate expression of cell division cycle 42 (Cdc42) and its clinical significance in tongue squamous cell carcinoma (TSCC). METHODS: Forty-two patients with TSCC were collected and the expression of Cdc42 in tumor, adjacent tissue and normal tissue was detected by immunohistochemistry and Western blot, respectively. The correlation of Cdc42 expression and clinical parameter were analyzed as well. Statistical analysis was performed using t test and rank sum test with SPSS 13.0 software package. RESULTS: The positive rate of Cdc42 in TSCC and adjacent tissue was 80.95% and 52.38%, respectively, which was higher than 11.90% in normal tissue. There was significant difference of Cdc42 expression between tumor, adjacent tissue and normal tissue (P<0.05). Cdc42 protein expression in cases with cervical lymph node metastasis was significantly higher than in cases without cervical lymph node metastasis (P<0.05). The expression of Cdc42 in TSCC had positive relation with clinical stages (P<0.05), but no correlation with pathological grade, age and gender (P>0.05). The expression levels of Cdc42 in nucleus were associated with pathological grade of TSCC. CONCLUSIONS: The results indicated Cdc42 positive expression is higher in TSCC and adjacent tissue. Over-expression of Cdc42 may play an important role in TSCC development and progress.

Key words: Tongue, Squamous cell carcinoma, Cdc42

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