PMID- 29079735 OWN - NLM STAT- MEDLINE DCOM- 20190716 LR - 20190716 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 7 IP - 1 DP - 2017 Oct 27 TI - SFRP4 gene expression is increased in aggressive prostate cancer. PG - 14276 LID - 10.1038/s41598-017-14622-3 [doi] LID - 14276 AB - Increased knowledge of the molecular differences between indolent and aggressive prostate cancer is needed for improved risk stratification and treatment selection. Secreted frizzled-related protein 4 (SFRP4) is a modulator of the cancer-associated Wnt pathway, and previously suggested as a potential marker for prostate cancer aggressiveness. In this study, we investigated and validated the association between SFRP4 gene expression and aggressiveness in nine independent cohorts (n = 2157). By differential expression and combined meta-analysis of all cohorts, we detected significantly higher SFRP4 expression in cancer compared with normal samples, and in high (3-5) compared with low (1-2) Grade Group samples. SFRP4 expression was a significant predictor of biochemical recurrence in six of seven cohorts and in the overall analysis, and was a significant predictor of metastatic event in one cohort. In our study cohort, where metabolic information was available, SFRP4 expression correlated significantly with the concentrations of citrate and spermine, two previously suggested biomarkers for aggressive prostate cancer. SFRP4 immunohistochemistry in an independent cohort (n = 33) was not associated with aggressiveness. To conclude, high SFRP4 gene expression is associated with high Grade Group and recurrent prostate cancer after surgery. Future studies investigating the mechanistic and clinical usefulness of SFRP4 in prostate cancer are warranted. FAU - Sandsmark, Elise AU - Sandsmark E AUID- ORCID: 0000-0002-2175-8027 AD - Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. elise.sandsmark@gmail.com. FAU - Andersen, Maria K AU - Andersen MK AD - Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. FAU - Bofin, Anna M AU - Bofin AM AD - Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. FAU - Bertilsson, Helena AU - Bertilsson H AD - Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. AD - Department of Urology, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway. FAU - Drablos, Finn AU - Drablos F AD - Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. FAU - Bathen, Tone F AU - Bathen TF AUID- ORCID: 0000-0002-8582-6965 AD - Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. FAU - Rye, Morten B AU - Rye MB AD - Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. AD - Clinic of Surgery, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway. FAU - Tessem, May-Britt AU - Tessem MB AD - Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. may-britt.tessem@ntnu.no. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20171027 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Proto-Oncogene Proteins) RN - 0 (SFRP4 protein, human) SB - IM MH - Adult MH - Aged MH - Cohort Studies MH - *Gene Expression Regulation, Neoplastic MH - Humans MH - Male MH - Middle Aged MH - Prostatic Neoplasms/*metabolism/*pathology MH - Proto-Oncogene Proteins/*metabolism PMC - PMC5660209 COIS- The authors declare that they have no competing interests. EDAT- 2017/10/29 06:00 MHDA- 2019/07/17 06:00 PMCR- 2017/10/27 CRDT- 2017/10/29 06:00 PHST- 2017/05/15 00:00 [received] PHST- 2017/10/09 00:00 [accepted] PHST- 2017/10/29 06:00 [entrez] PHST- 2017/10/29 06:00 [pubmed] PHST- 2019/07/17 06:00 [medline] PHST- 2017/10/27 00:00 [pmc-release] AID - 10.1038/s41598-017-14622-3 [pii] AID - 14622 [pii] AID - 10.1038/s41598-017-14622-3 [doi] PST - epublish SO - Sci Rep. 2017 Oct 27;7(1):14276. doi: 10.1038/s41598-017-14622-3.