PMID- 34738190 OWN - NLM STAT- MEDLINE DCOM- 20221107 LR - 20221107 IS - 1941-6636 (Electronic) VI - 53 IP - 4 DP - 2022 Dec TI - Overexpression of lncRNA DLEU1 in Gastric Cancer Tissues Compared to Adjacent Non-Tumor Tissues. PG - 990-994 LID - 10.1007/s12029-021-00733-8 [doi] AB - PURPOSE: Gastric cancer (GC) is caused by environmental factors and genetic changes of protein-coding- and non-coding sequences, which entail short non-coding RNAs (microRNAs) and long non-coding RNAs (lncRNAs). DLEU1 (deleted in lymphocytic leukemia 1), as an effective lncRNA located on chromosome 14.3q 13, modulates the nuclear factor-kB (NF-kB) signaling pathway. This gene usually plays an oncogenic role in the tumorigenesis of multiple types of cancer. The present study examined the expression level of DLEU1 and its association with clinical-pathological characteristics in GC. METHODS: Total RNA of 100 specimens was extracted by TRIzol reagent. After cDNA synthesis, qRT-PCR analysis was performed to measure the expression level of the DLEU1 gene and the obtained data were analyzed by SPSS 16.0. RESULTS: The relative expression level of DLEU1 significantly increased in tumor specimens compared to the normal tumor margin specimens. The biomarker index of lncRNA DLEU1 was 0.7 in tumor tissues. The observed high expression level of DLEU1 was pertinent to the pathological progressive TNM stage, lymph node metastasis, differentiation degree, patient's age and lifestyle, and Helicobacter pylori infection in GC patients. CONCLUSION: The obtained findings suggested that DLEU1 acts as an oncogene in GC and might be a new target for gene therapy of GC. CI - (c) 2021. Springer Science+Business Media, LLC, part of Springer Nature. FAU - Ghodrati, Roghieh AU - Ghodrati R AD - Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran. FAU - Safaralizadeh, Reza AU - Safaralizadeh R AUID- ORCID: 0000-0002-6970-6998 AD - Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran. Safaralizadeh@tabrizu.ac.ir. FAU - Dastmalchi, Narges AU - Dastmalchi N AD - Department of Biology, University College of Nabi Akram, Tabriz, Iran. FAU - Hosseinpourfeizi, Mohammadali AU - Hosseinpourfeizi M AD - Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran. FAU - Asadi, Milad AU - Asadi M AD - Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. FAU - Shirmohammadi, Masoud AU - Shirmohammadi M AD - Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. FAU - Baradaran, Behzad AU - Baradaran B AD - Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. LA - eng PT - Journal Article DEP - 20211105 PL - United States TA - J Gastrointest Cancer JT - Journal of gastrointestinal cancer JID - 101479627 RN - 0 (RNA, Long Noncoding) RN - 0 (Tumor Suppressor Proteins) RN - 0 (DLEU1 lncRNA, human) SB - IM MH - Humans MH - Carcinogenesis/genetics MH - Cell Line, Tumor MH - Cell Movement/genetics MH - Cell Proliferation/genetics MH - Gene Expression Regulation, Neoplastic MH - Helicobacter Infections/genetics MH - *RNA, Long Noncoding/genetics MH - *Stomach Neoplasms/genetics MH - Tumor Suppressor Proteins/genetics OTO - NOTNLM OT - DLEU1 gene OT - Gastric cancer OT - Long non-coding RNAs EDAT- 2021/11/06 06:00 MHDA- 2022/11/05 06:00 CRDT- 2021/11/05 06:55 PHST- 2021/10/06 00:00 [accepted] PHST- 2021/11/06 06:00 [pubmed] PHST- 2022/11/05 06:00 [medline] PHST- 2021/11/05 06:55 [entrez] AID - 10.1007/s12029-021-00733-8 [pii] AID - 10.1007/s12029-021-00733-8 [doi] PST - ppublish SO - J Gastrointest Cancer. 2022 Dec;53(4):990-994. doi: 10.1007/s12029-021-00733-8. Epub 2021 Nov 5.