lncRNA DLEU2 promotes gastric cancer progression through ETS2 via targeting miR-30a-5p
Autor: | Xiang-Dong Liu, Mingjie Yuan, Shuyi Han, Jun Wang, Jing Wang, Yihui Xu, Yanfei Jia, Xiaoli Ma, Min Wang, Yan Qi, Yunshan Wang |
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Rok vydání: | 2021 |
Předmět: |
0301 basic medicine
Cancer Research Gene knockdown QH573-671 medicine.diagnostic_test Chemistry Cell growth Clone (cell biology) Neoplasms. Tumors. Oncology. Including cancer and carcinogens Flow cytometry 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Oncology Western blot Cell culture 030220 oncology & carcinogenesis Genetics medicine Cancer research Primary Research Cytology Protein kinase B RC254-282 Intracellular |
Zdroj: | Cancer Cell International, Vol 21, Iss 1, Pp 1-11 (2021) Cancer Cell International |
ISSN: | 1475-2867 |
Popis: | Background Gastric cancer (GC) remains an important cancer worldwide. Further understanding of the molecular mechanisms of gastric carcinogenesis will enhance the diagnosis and treatment of GC. Methods The expression of DLEU2 and ETS2 was analyzed in several GC cell lines using GEPIA online analyze, qRT-PCR and immunohistochemistry. The biological behavior of GC cells was detected by CCK8, clone formation, transwell, wound healing, western blot, and flow cytometry assay. More in-depth mechanisms were studied. Results DLEU2 was significantly up-regulated in GC tissues and cell lines. The expression of DLEU2 was significantly associated with pathological grading and TNM stage of GC patients. Furthermore, knockdown of DLEU2 inhibited the proliferation, migration, and invasion of AGS and MKN-45 cells, while overexpression of DLEU2 promoted the proliferation, migration, and invasion of HGC-27 cells. MiR-30a-5p could directly bind to the 3’ UTR region of ETS2. Moreover, DLEU2 bound to miR-30a-5p through the same binding site, which facilitated the expression of ETS2. Knockdown of DLEU2 reduced the protein level of intracellular ETS2 and inhibited AKT phosphorylation, while overexpression of DLEU2 induced the expression of ETS2 and the phosphorylation of AKT. ETS2 was highly expressed in GC tissues. The expression of ETS2 was significantly associated with age, pathological grading, and TNM stage. ETS2 overexpression promoted cell proliferation and migration of AGS and MKN-45 cells. Furthermore, ETS2 overexpression rescued cell proliferation and migration inhibition induced by DLEU2 down-regulation and miR-30a-5p up-regulation in AGS and MKN-45 cells. Conclusions DLEU2 is a potential molecular target for GC treatment. |
Databáze: | OpenAIRE |
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