4.6 Article

Circular RNA Expression in Oral Squamous Cell Carcinoma

Journal

FRONTIERS IN ONCOLOGY
Volume 8, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fonc.2018.00398

Keywords

Oral squamous cell carcinoma; circRNAs; noncoding RNA; oncogenesis; pathological differentiation

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Funding

  1. National Natural Science Foundation of China [81572654]
  2. Basic Research Program of Shenzhen Innovation Council of China [JCYJ20160428173933559, JCYJ20150403091443303, JCYJ20150403091443286, SZBC2017023]

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Circular RNA (circRNA) is a type of non-coding RNA molecule that affects the cellular regulatory network by sequestering microRNA (miRNA) like a sponge. This study was performed to identify differentially-expressed circRNA in oral squamous cell carcinomas (OSCCs). By high-throughput sequencing, microarray circRNA expression profiles were acquired from patients with OSCCs (n = 8) and controls (n = 8), which totaled 1921 existing circRNA molecules and 10021 novel circRNA molecules. Most of the circular RNA is from exons and distributed in the No. 1 and 2 chromosomes. Eight up-regulated and down-regulated circRNA molecules were identified as differentially-expressed in OSCCs. Among this, the expression of circ_000334, circ_006740, and circ_006371 are significantly down-regulated in 42 pairs of samples, which means that these circRNA molecules might be implicated in oncogenesis and development of OSCCs.

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