Profiling of serum extracellular vesicles reveals miRNA-4525 as a potential biomarker for advanced renal cell carcinoma

Yuka Muramatsu-Maekawa, Kyojiro Kawakami, Yasunori Fujita, Manabu Takai, Daiki Kato, Keita Nakane, Taku Kato, Tomohiro Tsuchiya, Takuya Koie, Yuri Miura, Masafumi Ito, Kosuke Mizutani

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Aim: To identify novel diagnostic markers for renal cell carcinoma (RCC), we analyzed miRNAs in serum extracellular vesicles (EVs). Materials and Methods: EVs were purified from serum of healthy controls and patients with localized and advanced RCC using T-cell immunoglobulin domain and mucin domain-containing protein 4 conjugated to magnetic beads. miRNA profiling of EVs was conducted by microarray analysis. miRNA expression was examined by quantitative reverse transcription-polymerase chain reaction. Lastly, proteomic analysis of RCC cells transfected with a miRNA inhibitor was performed to identify its potential targets. Results: Microarray analysis revealed that nine miRNAs were increased by more than 1.5-fold in EVs from patients with RCC. Among them, miRNA-4525 was significantly elevated; miRNA-4525 expression was higher in RCC tissue than in the adjacent normal tissue. Proteomic analysis identified alpha fetoprotein and albumin as its potential targets. Conclusion: These findings suggest the potential of miRNA-4525 in serum EVs as a novel biomarker for advanced RCC.

Original languageEnglish
Pages (from-to)253-259
Number of pages7
JournalCancer Genomics and Proteomics
Volume18
Issue number3
DOIs
Publication statusPublished - 05-2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cancer Research

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