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Long non‑coding RNAs (lncRNAs) play a crucial role in cancer development. However, researchers have yet to identify the underlying association between lncRNAs and ovarian cancer (OC). The aim of the present study was to examine the effect of lncRNA RHPN1‑AS1 (RHPN1‑AS1) on OC cells and tissues. Reverse transcriptase‑quantitative PCR (RT‑qPCR) was utilized to quantify RHPN1‑AS1, miR‑485‑5p, and TPX2 mRNA expression in samples with OC. Luciferase‑reporter assay, RNA immunoprecipitation (RIP) assay, and RNA pull‑down assay were then employed to validate the target relationship among RHPN1‑AS1, miR‑485‑5p and TPX2 . Cell Counting Kit‑8, BrdU, wound‑healing, cell‑adhesion, and flow cytometry assays were also employed to assess cell viability, proliferation, migration, adhesion and apoptosis, respectively, in SKOV3 and OVCAR3 cell lines. Findings revealed that RHPN1‑AS1 demonstrated a higher expression level in OC cell lines and tissues. In addition, RHPN1‑AS1 enhanced the adhesion, proliferation and migration of OC cell lines but decreased apoptosis of OC cells. It was also observed that the relationship between RHPN1‑AS1 and miR‑485‑5p was negative and that RHPN1‑AS1 could sponge miR‑485‑5p to regulate the proliferation, apoptosis, adhesion, and migration abilities of OC cells. Moreover, TPX2 was targeted by miR‑485‑5p and was significantly overexpressed in OC cell lines and tissues. Experimental investigations also revealed tha TPX2 promoted the proliferation, adhesion, and migration of OC cells but suppressed the apoptosis of SKOV3 and OVCAR3 cells. In summary, RHPN1‑AS1 played a tumor promotive role by sponging miR‑485‑5p to increase TPX2 expression in OC tumorigenesis.

RHPN1‑AS1 promotes ovarian carcinogenesis by sponging miR‑485‑5p and releasing TPX2 mRNA