AU-HN-15 expression in HNSCC tumors. The expression of AU-HN-15 (A) and beta-actin (B) was determined by RT-PCR in the following samples: (1-8) HNSCC tumor tissue; (9-12) HNSCC cell lines: SCC-4 (9), HTB-43 (10), SCC-25 (11) and CCL-30 (12); (13-16) tissue adjacent to HNSCC tumor; (17-18) AU-HN-15 plasmid.