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Cancer metastasis database
General information | Literature | Expression | Regulation | Mutation | Homolog | Interaction

Basic Information

Gene ID

5908

Name

RAP1B

Synonymous

RAP1B, member of RAS oncogene family;RAP1B;RAP1B, member of RAS oncogene family

Definition

GTP-binding protein smg p21B|RAS-related protein RAP1B|Ras family small GTP binding protein RAP1B|ras-related protein Rap-1b|small GTP binding protein

Position

12q14

Gene type

protein-coding

Title

Abstract

esophageal cancer

MicroRNAs (miRNAs) represent a class of small non-coding RNAs that regulate gene expression at the post-transcriptional levels. Recent studies show that miRNAs may function as oncogenes or tumor suppressor genes. In this study, we demonstrated that miR-518b was down-regulated in esophageal squamous cell carcinoma (ESCC) tissues and correlated with metastasis and survival. miR-518b suppressed the proliferation by inducing apoptosis and repressed the invasion in ESCC cells, but had no effect on the cell cycle. Furthermore, Rap1b was revealed to be directly regulated by miR-518b. These findings indicate that miR-518b may function as a tumor suppressor by targeting Rap1b in the development of ESCC and has important clinical and prognostic value.