PMID- 30431073 OWN - NLM STAT- MEDLINE DCOM- 20190314 LR - 20211201 IS - 1791-2423 (Electronic) IS - 1019-6439 (Linking) VI - 54 IP - 1 DP - 2019 Jan TI - miR‑494.3p expression in synovial sarcoma: Role of CXCR4 as a potential target gene. PG - 361-369 LID - 10.3892/ijo.2018.4627 [doi] AB - Synovial sarcoma (SS) is a rare tumour, with dismal survival when metastasis occurs. SS contains a characteristic translocation (X;18)(p11;q11) and the fusion genes appear to be mutually exclusive and concordant in primary and metastatic tumours. Novel prognostic and predictive factors are required. The C‑X‑C motif chemokine ligand 12 (CXCL12)/C‑X‑C chemokine receptor 4 (CXCR4) axis is involved in tumour development and metastatic spread in many types of cancer and previous data have demonstrated a pivotal role of CXCR4 in SS cell migration and invasion. Bioinformatics and biological data indicated CXCR4 is a possible candidate target of miR‑494.3p, known to be involved in tumour progression. In this study, we analysed the expression of miR‑494.3p and its potential target, CXCR4, in a series of SS specimens. A significantly lower miR‑494.3p expression was found in the tumour compared to normal tissue associated with higher levels of CXCR4 both at the gene and protein level. The role of CXCR4 as a potential target of miR‑494.3p was assessed in two SS cell lines (SW982 and SYO‑I). Transfection with miR‑494.3p expression plasmid led to a marked decrease in CXCR4 gene and protein expression, concomitant with a transitory decrease in cell proliferation and migration. The SYO‑I cells also responded with an increased apoptotic fraction. The data of this study also demonstrate that the downregulation of miR‑494.3p in SS surgical specimens, concomitant with an increased expression of its potential target, CXCR4, was more evident in the metastatic subset. In vitro experiments confirmed that miR‑494.3p functioned as a tumour suppressor through the involvement of CXCR4 and ongoing studies are directed to better clarify its role in SS therapeutic strategies. FAU - Pazzaglia, Laura AU - Pazzaglia L AD - Laboratory of Experimental Oncology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Pollino, Serena AU - Pollino S AD - Laboratory of Experimental Oncology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Vitale, Mattia AU - Vitale M AD - Laboratory of Experimental Oncology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Bientinesi, Elisa AU - Bientinesi E AD - Laboratory of Experimental Oncology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Benini, Stefania AU - Benini S AD - Department of Pathology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Ferrari, Cristina AU - Ferrari C AD - Laboratory of Experimental Oncology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Palmerini, Emanuela AU - Palmerini E AD - Chemotherapy Unit, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Gambarotti, Marco AU - Gambarotti M AD - Department of Pathology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Picci, Piero AU - Picci P AD - Laboratory of Experimental Oncology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. FAU - Benassi, Maria Serena AU - Benassi MS AD - Laboratory of Experimental Oncology, IRCCS, Rizzoli Orthopedic Institute, I‑40136 Bologna, Italy. LA - eng PT - Journal Article DEP - 20181106 PL - Greece TA - Int J Oncol JT - International journal of oncology JID - 9306042 RN - 0 (CXCR4 protein, human) RN - 0 (MIRN494 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (Receptors, CXCR4) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Cell Line, Tumor MH - Cell Movement MH - Cell Proliferation MH - Disease Progression MH - Down-Regulation MH - Female MH - Gene Expression Regulation, Neoplastic MH - Humans MH - Male MH - MicroRNAs/*genetics MH - Middle Aged MH - Neoplasm Metastasis MH - Prognosis MH - Receptors, CXCR4/*genetics/*metabolism MH - Sarcoma, Synovial/*genetics/metabolism MH - Survival Analysis MH - Young Adult OTO - NOTNLM OT - synovial sarcoma OT - microRNA-494.3p OT - C-X-C chemokine receptor 4 OT - biomarker OT - cell migration EDAT- 2018/11/16 06:00 MHDA- 2019/03/15 06:00 CRDT- 2018/11/16 06:00 PHST- 2018/05/29 00:00 [received] PHST- 2018/10/04 00:00 [accepted] PHST- 2018/11/16 06:00 [pubmed] PHST- 2019/03/15 06:00 [medline] PHST- 2018/11/16 06:00 [entrez] AID - 10.3892/ijo.2018.4627 [doi] PST - ppublish SO - Int J Oncol. 2019 Jan;54(1):361-369. doi: 10.3892/ijo.2018.4627. Epub 2018 Nov 6.