TY - JOUR AB - Double homeobox A pseudogene 8 (DUXAP8) has been reported to regulate the growth of several types of cancers, such as breast cancer and ovarian cancer. However, its role in melanoma remains unclear. In the present study, the mechanism through which DUXAP8 regulates melanoma progression was explored. The expression levels of DUXAP8 were determined in 43 samples from patients with melanoma in different stages, as well as human epidermal melanocytes cells and malignant melanoma cell lines using reverse transcription‑quantitative PCR (RT‑qPCR). The prognosis of patients was analyzed using the Kaplan‑Meier method. The relationship between lncRNA DUXAP8 expression and microRNA (miR)‑3182 or nuclear protein 1 transcriptional regulator (NUPR1) levels was analyzed using Pearson's correlation. Luciferase reporter and RNA pull‑down were used to examine the interactions between these molecules. Proliferation was assessed using Cell Counting‑Kit‑8. Transwell assays were used to examine cell migration and invasion. lncRNA DUXAP8 was upregulated in melanoma tissue and cells compared with normal tissues and cells. The levels of DUXAP8 inversely correlated with survival time of patients with melanoma. Knockdown of lncRNA DUXAP8 inhibited proliferation, migration and invasion of melanoma cells. lncRNA DUXAP8 targeted miR‑3182, while miR‑3182 targeted NUPR1. The overexpression of NUPR1 reversed the effects of DUXAP8 knockdown or miR‑3182 mimic on melanoma progression. In conclusion, lncRNA DUXAP8 downregulation inhibits the development of melanoma by regulating the miR‑3182/NUPR1 axis. AD - Department of Dermatology, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China Department of Dermatology, The Affiliated Changzhou No. 2 People's Hospital with Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China AU - Chen,Xige AU - Gao,Juan AU - Liang,Ning DA - 2021/07/01 DO - 10.3892/ol.2021.12756 IS - 1 JO - Oncol Lett KW - melanoma DUXAP8 microRRNA‑3182 NUPR1 PY - 2021 SN - 1792-1074 1792-1082 SP - 495 ST - DUXAP8 knockdown inhibits the development of melanoma by regulating the miR‑3182/NUPR1 pathway T2 - Oncology Letters TI - DUXAP8 knockdown inhibits the development of melanoma by regulating the miR‑3182/NUPR1 pathway UR - https://doi.org/10.3892/ol.2021.12756 VL - 22 ER -