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Expression of E-cadherin in cervical lymph nodes from primary oral squamous cell carcinoma patients



Expression of E-cadherin in cervical lymph nodes from primary oral squamous cell carcinoma patients



Archives of Oral Biology 52(8): 740-747



Oral squamous cell carcinoma (OSCC) is the most common malignant tumor in oral and maxillofacial region with poor prognosis. E-cadherin plays a key role in cell-to-cell adhesion. E-cadherin expression in the metastatic cervical lymph node, especially in the micrometastatic cervical lymph node has seldom been reported in OSCC patients. To investigate the E-cadherin expression in cervical lymph nodes from OSCC patients as well as its clinical significance. Thirty-three OSCC patients were involved in this study; among them, there were 28 males and 5 females, the age ranged from 34 to 78 years (mean 58.8 years). The most suspicious metastatic cervical lymph node (total 99 lymph nodes) from three cervical regions of each OSCC patient was selected for detection of E-cadherin using routine pathological examination and immunohistochemistry. Increased E-cadherin expression in the metastatic cervical lymph nodes was detected, which was diagnosed by routine pathological examination using HE staining. However, in the micrometastatic cervical lymph node, E-cadherin expression was negative. The survival rate of OSCC patients correlated with decreased E-cadherin expression (P=0.001), N stage (P=0.024) and tumor recurrence (P<0.001). Tumor recurrence is the only independent factor on the prognosis (RR=20.83 and P=0.014). Decreased E-cadherin expression in cancerous tissue correlates with the poor prognosis of OSCC patients. Detection of E-cadherin expression is useful to confirm the cervical lymph node metastasis and maybe useless to detect the cervical lymph node micrometastasis; further studies are encouraged to reveal the detail mechanism of E-cadherin expression in formation of lymph node metastatic focus.

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Accession: 015782265

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PMID: 17331461

DOI: 10.1016/j.archoralbio.2007.01.013


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