title: Long noncoding RNA aberrant expression profiles after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy of AGC ascertained by microarray analysis.
abstract: Long noncoding RNAs (lncRNAs) have been shown to be involved in the development and progression of advanced gastric cancer (AGC). However, the roles of lncRNAs in advanced gastric cancer during the process of cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) are not well understood. A high-throughput microarray analysis was performed to compare the expression profiles of lncRNAs and messenger RNAs (mRNAs) in AGC serum samples during the process of CRS + HIPEC. Several potentially AGC-associated lncRNAs were verified by real-time quantitative reverse transcription polymerase chain reaction (PCR) analysis. Using abundant and varied probes, we were able to assess 33,045 lncRNAs and 30,215 mRNAs in our microarray. We found that 566 lncRNAs were differentially expressed (2-fold change) in AGC serum samples, indicating the significantly up- or downregulated lncRNAs play important roles in AGC during the process of CRS + HIPEC. Quantitative PCR results further verified that eight lncRNAs were aberrantly expressed in AGC serum samples after CRS + HIEC compared with matched serum sample before CRS + HIPEC. Among them, BC031243 and RP11-356I2.2 were the most aberrantly expressed lncRNAs, as estimated by quantitative PCR in six pairs of AGC serum samples. Our study demonstrated the expression patterns of lncRNAs in AGC serums before and after CRS + HIPEC by microarray. These results revealed that lncRNAs were differentially expressed during the process of CRS + HIPEC, suggesting that they might play key roles in tumor development.
authors: Department of Abdominal Surgery (Section 2), Affiliated Cancer Hospital of Guangzhou Medical University, No.78, Hengzhigang Road, Guangzhou, 510095, Guangdong Province, China.
authors: Xiaoqi
authors: X
authors: Zeng
authors: Huijuan
authors: H
authors: Shi
authors: Jiping
authors: J
authors: Wang
authors: Shuzhong
authors: S
authors: Cui
authors: Hongsheng
authors: H
authors: Tang
authors: Xiangliang
authors: X
authors: Zhang
mesh_terms: D000368:Aged; D065426:Cytoreduction Surgical Procedures; D005260:Female; D020869:Gene Expression Profiling; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D020411:Oligonucleotide Array Sequence Analysis; D062085:RNA, Long Noncoding / Q000097:blood*; D012333:RNA, Messenger / Q000097:blood; D013274:Stomach Neoplasms / Q000097:blood* / Q000235:genetics* / Q000473:pathology / Q000601:surgery
chemical_list: D062085:RNA, Long Noncoding; D012333:RNA, Messenger
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