Cited by 201Extracellular vesicles in diseaseMicroRNA in disease regulationCancer-related molecular mechanisms research

Exosomal microRNA miR-1246 induces cell motility and invasion through the regulation of DENND2D in oral squamous cell carcinoma

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Sakha, Sujata, Muramatsu, Tomoki, Ueda, Koji, Inazawa, Johji·2016·Scientific Reports

Abstract

Metastasis is associated with poor prognosis in cancers. Exosomes, which are packed with RNA and proteins and are released in all biological fluids, are emerging as an important mediator of intercellular communication. However, the function of exosomes remains poorly understood in cancer metastasis. Here, we demonstrate that exosomes isolated by size-exclusion chromatography from a highly metastatic human oral cancer cell line, HOC313-LM, induced cell growth through the activation of ERK and AKT as well as promoted cell motility of the poorly metastatic cancer cell line HOC313-P. MicroRNA (miRNA) array analysis identified two oncogenic miRNAs, miR-342-3p and miR-1246, that were highly expressed in exosomes. These miRNAs were transferred to poorly metastatic cells by exosomes, which resulted in increased cell motility and invasive ability. Moreover, miR-1246 increased cell motility by directly targeting DENN/MADD Domain Containing 2D (DENND2D). Taken together, our findings support the metastatic role of exosomes and exosomal miRNAs, which highlights their potential for applications in miRNA-based therapeutics.

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  • Extracellular miRNAs can exert biological functions in recipient cells to regulate their activity, thereby acting as intercellular signaling molecules.

    “Many studies have also demonstrated that extracellular miRNAs can exert biological functions in recipient cells to regulate their activity, thereby acting as intercellular signaling molecules.”
  • miR-342-3p and miR-1246 secreted from a highly metastatic human oral cancer cell line induce metastasis in a poorly metastatic cancer cell line.

    “miRNAs, specifically miR-342–3p and miR-1246, secreted from a highly metastatic human oral cancer cell line, were found to induce metastasis in a poorly metastatic cancer cell line (136).”

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Authors
Sakha, S., Muramatsu, T., Ueda, K., & Inazawa, J.
Affiliations
  • Tokyo Medical and Dental University (JP)
  • Japanese Foundation For Cancer Research (JP)
Corresponding author
Inazawa, Johji
Venue
Scientific Reports
Published
2016-12-08
Volume
6
Issue
1
Pages
38750-38750
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2560618296
Cited by
201
References
42
Citations by year
2026: 8 · 2025: 11 · 2024: 18 · 2023: 14 · 2022: 31 · 2021: 29 · 2020: 31 · 2019: 32 · 2018: 17 · 2017: 10
FWCI
10.22
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Japan Agency for Medical Research and Development
  • Ministry of Education, Culture, Sports, Science and Technology (15H05908, 15K18401, 25250019)
  • Japan Society for the Promotion of Science (15H05908, 16KT0116, 26890012, 26710007, 16K14630, 15K18401, 25250019)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
Keywords
exosomes, exosomal microRNAs, miR-1246, miR-342-3p, oral squamous cell carcinoma, metastasis, cell motility, cell invasion, ERK signaling, Akt signaling, intercellular communication, miRNA-based therapy
MeSH terms
Carcinoma, Squamous Cell, Humans, Mouth Neoplasms, Neoplasm Invasiveness, Neoplasm Metastasis, Guanine Nucleotide Exchange Factors, Tumor Suppressor Proteins, MicroRNAs, Exosomes

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