Transcriptomics

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The function and mechanism about how ORAOV1-B potentiates the OSCC metastasis.


ABSTRACT: Lymph node metastasis, a powerful prognostic indicator of oral squamous cell carcinoma (OSCC), is chiefly responsible for cancer death. Long non-coding RNA (lncRNA) is recently addressed to significantly account for modulating OSCC metastasis. Here, we identified a novel alternative splice of Oral Cancer Overexpressed 1 (ORAOV1), ORAOV1-B, which was subsequently validated as an lncRNA and correlated with OSCC lymph node metastasis; significantly increased invasion and migration were observed in ORAOV1-B-overexpressed OSCC cells; In the metastatic model, ORAOV1-B also significantly contributed to OSCC-related lung metastasis. cDNA microarrays was performed to compare up- or down-regulated genes in EV and ORAOV1-B sets of OSCC, which suggested TNFα as a potential downstream of ORAOV1-B and the upregulation of pro-inflammatory genes, indicating the activation of NF-κB pathway. In summary, the novel splice variant ORAOV1-B is an lncRNA, which significantly potentiates OSCC invasion and metastasis by binding to Hsp90 and activating the NF-κB-TNFα loop. Our study implies that ORAOV1-B might serve as an attractive OSCC metastasis intervention target.

ORGANISM(S): Homo sapiens

PROVIDER: GSE145599 | GEO | 2020/03/04

REPOSITORIES: GEO

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