title: Silencing of Long Non-Coding RNA MALAT1 Promotes Apoptosis of Glioma Cells.
abstract: The metastasis-associated lung adenocarcinoma transcription 1 (MALAT1) is a highly conserved long non-coding RNA (lncRNA) gene. However, little is known about the pathological role of lncRNA MALAT1 in glioma. In the present study, we explored the expression level of lncRNA MALAT1 in primary glioma tissues as well as in U87 and U251 glioma cell lines. Using qRT-PCR, we found that the expression of lncRNA MALAT1 was significantly increased in glioma tissues compared with that of paracancerous tissues. Meanwhile, the expression of MALAT1 was highly expressed in U98 and U251 cells. In order to explore the function of MALAT1, the expression of MALAT1 was greatly reduced in U87 and U251 cells transfected with siRNA specifically targeting MALAT1. Consequently, cell viability of U87 and U251 cells were drastically decreased after the knockdown of MALAT1. Concomitantly, the apoptosis rate of the two cell lines was dramatically increased. Furthermore, the expression levels of some tumor markers were reduced after the knockdown of MALAT1, such as CCND1 and MYC. In summary, the current study indicated a promoting role of MALAT1 in the development of glioma cell.
authors.affiliation: Department of Neurology, Yishui Central Hospital, Shandong, China .
authors.forename: Jianping
authors.identifier: 0000-0002-1848-8409
authors.initials: J
authors.lastname: Xiang
authors.affiliation: Department of Neurology, Yishui Central Hospital, Shandong, China .
authors.forename: Shifeng
authors.identifier: 0000-0002-6974-4935
authors.initials: S
authors.lastname: Guo
authors.affiliation: Department of Neurology, Yishui Central Hospital, Shandong, China .
authors.forename: Shuling
authors.identifier: 0000-0003-0033-0192
authors.initials: S
authors.lastname: Jiang
authors.affiliation: Department of Neurology, Yishui Central Hospital, Shandong, China .
authors.forename: Yuelong
authors.identifier: 0000-0002-9880-8440
authors.initials: Y
authors.lastname: Xu
authors.affiliation: Department of Neurology, Yishui Central Hospital, Shandong, China .
authors.forename: Jiwei
authors.identifier: 0000-0002-4367-8351
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Neurology, Yishui Central Hospital, Shandong, China .
authors.forename: Li
authors.identifier: 0000-0002-6999-5275
authors.initials: L
authors.lastname: Li
authors.affiliation: Department of Oncology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Shandong, China .
authors.forename: Jinyu
authors.identifier: 0000-0003-4698-5717
authors.initials: J
authors.lastname: Xiang
mesh_terms: D017209:Apoptosis; D014408:Biomarkers, Tumor / Q000235:genetics / Q000378:metabolism; D015153:Blotting, Western; D045744:Cell Line, Tumor; D002465:Cell Movement; D049109:Cell Proliferation; D019938:Cyclin D1 / Q000235:genetics / Q000378:metabolism; D015536:Down-Regulation; D005434:Flow Cytometry; D005910:Glioma / Q000378:metabolism / Q000473:pathology; D006801:Humans; D016271:Proto-Oncogene Proteins c-myc / Q000235:genetics / Q000378:metabolism; D034622:RNA Interference; D062085:RNA, Long Noncoding / Q000037:antagonists & inhibitors / Q000235:genetics / Q000378:metabolism*; D034741:RNA, Small Interfering / Q000378:metabolism; D060888:Real-Time Polymerase Chain Reaction
chemical_list: D014408:Biomarkers, Tumor; C530104:CCND1 protein, human; C557041:MALAT1 long non-coding RNA, human; D016271:Proto-Oncogene Proteins c-myc; D062085:RNA, Long Noncoding; D034741:RNA, Small Interfering; D019938:Cyclin D1
keywords: Apoptosis; Glioma; MALAT1 Long Non-coding RNA, Human; RNA, Long Noncoding