Upregulation of BCAM and its sense lncRNA BAN are associated with gastric cancer metastasis and poor prognosis
Autor: | Wei Zhuo, Wenyu Cui, Kanghua Chen, Tianhua Zhou, Junni Wang, Xianping Rao, Yujie Deng, Zhenxia Huang, Qiang Sun, Dongyang Guo, Shanshan Xie, Juan Jin, Liu Yiman, Shuang Li, Valentina Chanu Maibam |
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Rok vydání: | 2019 |
Předmět: |
0301 basic medicine
Cancer Research BCAM Biology lcsh:RC254-282 Metastasis 03 medical and health sciences 0302 clinical medicine lncRNA Downregulation and upregulation Cell Movement Stomach Neoplasms Cell Line Tumor Sense (molecular biology) Genetics medicine Humans metastasis Neoplasm Invasiveness Research Articles Gene knockdown gastric cancer Cell migration General Medicine medicine.disease lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens Prognosis Lutheran Blood-Group System Long non-coding RNA Up-Regulation Gene Expression Regulation Neoplastic 030104 developmental biology Oncology 030220 oncology & carcinogenesis Cancer research Molecular Medicine Ectopic expression RNA Long Noncoding Cell Adhesion Molecules Research Article |
Zdroj: | Molecular Oncology Molecular Oncology, Vol 14, Iss 4, Pp 829-845 (2020) |
ISSN: | 1878-0261 |
Popis: | Patients with metastatic gastric cancer (GC) have a poor prognosis; however, the molecular mechanism of GC metastasis remains unclear. Here, we employed bioinformatics to systematically screen the metastasis‐associated genes and found that the levels of basal cell adhesion molecule (BCAM) were significantly increased in GC tissues from patients with metastasis, as compared to those without metastasis. The upregulation of BCAM was also significantly associated with a shorter survival time. Depletion of BCAM inhibited GC cell migration and invasion. Knockout (KO) of BCAM by the CRISPR/Cas9 system reduced the invasion and metastasis of GC cells. To explore the mechanism of BCAM upregulation, we identified a previously uncharacterized BCAM sense lncRNA that spanned from exon 6 to intron 6 of BCAM, and named it as BCAM‐associated long noncoding RNA (BAN). Knockdown of BAN inhibited BCAM expression at both mRNA and protein levels. Knockdown of BAN suppressed GC cell migration and invasion, which was effectively rescued by ectopic expression of BCAM. Further clinical data showed that BAN upregulation was associated with GC metastasis and poor prognosis. Importantly, BAN expression was also significantly associated with that of BCAM in GC tissues. Taken together, these results indicate that increased expression of BCAM and its sense lncRNA BAN promote GC cell invasion and metastasis, and are associated with poor prognosis of GC patients. We found that the levels of BCAM and its sense lncRNA BAN were increased in gastric cancer (GC) tissues with metastasis. Knockdown of BAN inhibited BCAM expression at both mRNA and protein levels. Moreover, increased expression of BCAM and its sense lncRNA BAN promote GC cell invasion and metastasis, and are associated with poor prognosis of GC patients. |
Databáze: | OpenAIRE |
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