Intact RNAs of high purities with clear 18S and 28S bands were successfully extracted from AGS, gastric cancer specimen and its peritumor tissue.

• 成功从胃癌细胞株AGS和胃癌及其癌旁组织提取到有较高纯度的完整RNAs,电泳显示清晰的18S和28S条带；