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  • Title: Relationship between decreased expression of squamous cell carcinoma antigen 2 and E-cadherin in primary cervical cancer lesions and lymph node metastasis.
    Author: Murakami A, Nakagawa T, Fukushima C, Torii M, Sueoka K, Nawata S, Takeda O, Ishikawa H, Sugino N.
    Journal: Oncol Rep; 2008 Jan; 19(1):99-104. PubMed ID: 18097581.
    Abstract:
    Squamous cell carcinoma antigen (SCCA) has been used for the management of squamous cell carcinoma, especially in order to evaluate therapeutic effects and monitor recurrence. Recent studies have shown that SCCA performs several biological functions and can influence the behavior of cancer cells. It is well known that altered expression of E-cadherin is involved in the process of cancer invasion and metastasis. The present study was therefore undertaken to investigate the relationship between the expression of SCCA, E-cadherin and lymph node metastasis in advanced cervical squamous cell carcinoma patients. We studied 70 patients who had undergone radical hysterectomy and pelvic lymphadenectomy for stage IB, IIA and IIB of the disease, without pretreatments. Immunohistochemistry, using monoclonal antibodies against SCCA2 and E-cadherin, was performed to examine the relationship between SCCA2 and E-cadherin expression patterns in primary cancer lesions and lymph node metastasis. There was a significant positive relationship between the two expression patterns in primary cancer lesions (p<0.01). Both exhibited a heterogeneous expression pattern in the primary tumor which indicated a significant relationship with lymph node metastasis (p<0.01). Our data clearly show that SCCA2 expression is significantly related to E-cadherin expression and that the heterogeneous pattern of SCCA and E-cadherin in primary lesions is strongly associated with the high incidence of lymph node metastasis in cervical squamous cell carcinoma. These findings suggest that SCCA2 may be involved in cancer behavior such as metastasis, and as such can be a useful marker in predicting lymph node metastasis.
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