Original Articles
Copyright ©The Author(s) 1998. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Aug 15, 1998; 4(4): 334-336
Published online Aug 15, 1998. doi: 10.3748/wjg.v4.i4.334
Two novel gastric cancer-associated genes identified by differential display
Han You, Bing Xiao, Da-Xiang Cui, Yong-Quan Shi, Dai-Ming Fan
Han You, Bing Xiao, Da-Xiang Cui, Yong-Quan Shi, Dai-Ming Fan, Department of Gastroenterology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China
Han You, female, born on 1974-04-12 in Chengdu City, postgraduate studying in Fourth Military Medical University, majoring cloning and analysing novel gastric cancer-associated genes.
Author contributions: All authors contributed equally to the work.
Correspondence to: Dr. Han You, Department of Gastroenterology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China
Telephone: +86-29-2539041
Received: June 6, 1998
Revised: July 16, 1998
Accepted: July 21, 1998
Published online: August 15, 1998
Abstract

AIM: To clone novel gastric cancer-associated genes and investigate their roles in gastric cancer occurrence.

METHODS: A method called differential display was used which allows the identification of differentially expressed genes by using PAGE to display PCR-amplified cDNA fragments between gastric cancer cells and normal gastric mucosa cells. These fragments were cloned into plasmid vector pUC18. Homology analysis was made after sequencing these fragments.

RESULTS: Two novel genes were identified compared with sequences from GenBank. One was registered with the AD number AF 051783. In situ hybridization showed that these two novel genes expressed specifically in gastric cancer tissues.

CONCLUSION: The two novel genes obtained by differential display were confirmed to be gastric cancer-associated genes using in situ hybridization.

Keywords: stomach neoplasms; gene clone; nucleotides sequence analysis; in situ hybridization; polymerase chain reaction; RNA, messenger