Task: Answer Verification
Input (English): Question: Is esophageal carcinoma cell line with high EGFR polysomy responsive to gefitinib?
Answer: We show for the first time a significant treatment response to the EGFR tyrosine kinase inhibitor gefitinib in esophageal tumor cells with a high polysomy for EGFR, suggesting a future role of anti-EGFR therapy for esophageal adenocarcinoma patients with a high EGFR polysomy.
Output (English): yes