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miR-4284 Functions as a Tumor Suppressor in Renal Cell Carcinoma Cells by Targeting Glutamate Decarboxylase 1

Authors
 Sujin Choi  ;  Kyeongmi Kim  ;  Hyunjeong Yeo  ;  Gyurim Lee  ;  Isaac Kim  ;  Jisu Oh  ;  Hyun-Ju An  ;  Soonchul Lee 
Citation
 CANCERS, Vol.15(15) : 3888, 2023-08 
Journal Title
CANCERS
Issue Date
2023-08
Keywords
glutamate decarboxylase 1 ; miR-4284 ; microRNA ; renal cell carcinoma ; tumor suppressor
Abstract
Simple Summary miRNAs play a crucial role as oncogenic or tumor suppressors in the pathogenesis and progression of tumors. However, few studies have investigated the exact role of miR-4284 in RCC. Thus, we investigated the role of miR-4284 as a tumor suppressor in renal cancer cell lines. In this study, miR-4284 overexpression suppressed proliferation, induced apoptosis, and suppressed tumorigenic features of renal cancer cells. GAD1 was directly targeted by miR-4284. A xenograft mouse model injected with Caki-1 cells transfected with miR-4284 showed significantly decreased tumor growth rate and volume. Our study provided novel findings about the miR-4284 functions as a tumor suppressor in RCC by targeting GAD-1. These findings highlight the potential of miR-4284 as a target for anticancer miRNA therapeutics in RCC. MicroRNAs (miRNAs) play a crucial role as oncogenic or tumor suppressors in the pathogenesis and progression of tumors. However, few studies have investigated the exact role of miR-4284 in renal cell carcinoma (RCC). We aimed to investigate the role of miR-4284 as a tumor suppressor in renal cancer cell lines. A498 and Caki-1 were transfected with miR-4284. The Cell Counting Kit-8, colony formation, apoptosis assays, and quantitative reverse transcription-polymerase chain reaction were used to evaluate tumor growth-inhibiting functions. The wound-healing, transwell, and sphere-formation assays were conducted to investigate tumorigenic characteristics. The potential target genes of miR-4284 were predicted and experimentally verified. A xenograft experiment was performed to estimate the tumor-growth-suppressive function of miR-4284. miR-4284 overexpression suppressed proliferation, induced apoptosis, and suppressed tumorigenic features of renal cancer cells. Glutamate decarboxylase 1 (GAD1) was directly targeted by miR-4284. A xenograft mouse model injected with Caki-1 cells transfected with miR-4284 showed significantly decreased tumor growth rate and volume. miR-4284 affected tumor growth, metastasis, and apoptosis of renal cancer cells in vitro and in vivo. These findings highlight the potential of miR-4284 as a target for anticancer miRNA therapeutics in RCC.
Files in This Item:
T999202577.pdf Download
DOI
10.3390/cancers15153888
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Oh, Jisu(오지수)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/198377
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