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[The detection of laryngeal carcinoma-associated antigens in tissue and serum using three mixed monoclonal antibodies against laryngeal cancer].

Laryngeal carcinoma-associated antigens in tissue and serum of patients with laryngeal carcinoma and normal adults were detected by using ABC and ELISA methods. The results showed that the positive rate rised from 80-86.6% to 97.7% by applying mixed monoclonal antibodies compared with single monoclonal antibody against laryngeal cancer. It was also found that the level of laryngeal carcinoma-associated antigens was much higher in serum of laryngeal carcinoma group than that of control group. The statistic difference was very significant (P < 0.01). The level was different with clinical types, stages and increased in line with the tumor growth. So it was suggested that the mixed monoclonal antibodies were sensitive and specific, which was considered as a useful tumor marker for diagnosis, monitoring clinial course and judging prognosis of patient with laryngeal carcinoma.