期刊
INTERNATIONAL JOURNAL OF CANCER
卷 120, 期 4, 页码 781-787出版社
WILEY-LISS
DOI: 10.1002/ijc.22370
关键词
cetuximab; EGFR; esophageal cancer; ADCC; TGF-beta
类别
To evaluate the possibility of treatment with antiepidermal growth factor receptor (EGFR) mAb, Cetuximab against esophageal squamous cell carcinoma (SCC), we performed detail analysis of the antibody-dependent cellular cytotoxicity (ADCC) mediated by Cetuximab against esophageal SCC. Esophageal SCC cell lines with various levels of EGFR (n = 8) were evaluated for their Cetuximab-mediated ADCC by Cr-51-release assay. As a result, Cetuximab was able to induce ADCC against EGFR-expressing esophageal SCC and the activities reflected the degree of EGFR expression on the esophageal SCC. The activities of Cetuximab-mediated ADCC by patients' PBMC were impaired in comparison with those by healthy donors' PBMC. Moreover, the inhibition of transforming growth factor (TGF)-beta could enhance Cetuximab-mediated ADCC against TGF-beta-producing SCC. In conclusion, Cetuximab was able to induce ADCC against EGFR-expressing esophageal SCC. Some modalities aiming at enhancing the Cetuximab-mediated ADCC may be necessary for successful Cetuximab treatment of patients with esophageal SCC. (c) 2006 Wiley-Liss. Inc.
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