PMID- 29372560 OWN - NLM STAT- MEDLINE DCOM- 20180403 LR - 20180403 IS - 1099-0844 (Electronic) IS - 0263-6484 (Linking) VI - 36 IP - 2 DP - 2018 Mar TI - Inhibition of the CSF-1 receptor sensitizes ovarian cancer cells to cisplatin. PG - 80-87 LID - 10.1002/cbf.3319 [doi] AB - Ovarian cancer is one of the most common female malignancies, and cisplatin-based chemotherapy is routinely used in locally advanced ovarian cancer patients. Acquired or de novo cisplatin resistance remains the barrier to patient survival, and the mechanisms of cisplatin resistance are still not well understood. In the current study, we found that colony-stimulating-factor-1 receptor (CSF-1R) was upregulated in cisplatin-resistant SK-OV-3 and CaoV-3 cells. Colony-stimulating-factor-1 receptor knockdown suppressed proliferation and enhanced apoptosis in cisplatin-resistant SK-OV-3 and CaoV-3 cells. However, CSF-1R overexpression had inverse effects. While parental SK-OV-3 and CaoV-3 cells were more resistant to cisplatin after CSF-1R overexpression, CSF-1R knockdown in SK-OV-3 and CaoV-3 cells promoted cisplatin sensitivity. Overexpression and knockdown studies also showed that CSF-1R significantly promoted active AKT and ERK1/2 signalling pathways in cisplatin-resistant cells. Furthermore, a combination of cisplatin and CSF-1R inhibitor effectively inhibited tumour growth in xenografts. Taken together, our results provide the first evidence that CSF-1R inhibition can sensitize cisplatin-refractory ovarian cancer cells. This study may help to increase understanding of the molecular mechanisms underlying cisplatin resistance in tumours. CI - Copyright (c) 2018 John Wiley & Sons, Ltd. FAU - Yu, Rong AU - Yu R AD - Reproductive Center, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China. FAU - Jin, Hao AU - Jin H AD - Department of Organ Transplantation, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China. FAU - Jin, Congcong AU - Jin C AD - Reproductive Center, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China. FAU - Huang, Xuefeng AU - Huang X AD - Reproductive Center, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China. FAU - Lin, Jinju AU - Lin J AD - Reproductive Center, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China. FAU - Teng, Yili AU - Teng Y AUID- ORCID: 0000-0003-3245-6750 AD - Reproductive Center, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China. LA - eng PT - Journal Article DEP - 20180125 PL - England TA - Cell Biochem Funct JT - Cell biochemistry and function JID - 8305874 RN - 0 (Antineoplastic Agents) RN - EC 2.7.10.1 (Receptor, Macrophage Colony-Stimulating Factor) RN - Q20Q21Q62J (Cisplatin) SB - IM MH - Animals MH - Antineoplastic Agents/chemistry/*pharmacology MH - Apoptosis/drug effects MH - Cell Proliferation/drug effects MH - Cisplatin/chemistry/*pharmacology MH - Dose-Response Relationship, Drug MH - Drug Resistance, Neoplasm/drug effects MH - Drug Screening Assays, Antitumor MH - Female MH - Humans MH - Mice MH - Neoplasms, Experimental/drug therapy/metabolism/pathology MH - Ovarian Neoplasms/*drug therapy/metabolism/pathology MH - Receptor, Macrophage Colony-Stimulating Factor/*antagonists & inhibitors/metabolism MH - Structure-Activity Relationship MH - Tumor Cells, Cultured OTO - NOTNLM OT - CSF-1R OT - cisplatin OT - ovarian cancer OT - resistance EDAT- 2018/01/27 06:00 MHDA- 2018/04/04 06:00 CRDT- 2018/01/27 06:00 PHST- 2017/08/08 00:00 [received] PHST- 2017/10/19 00:00 [revised] PHST- 2017/12/26 00:00 [accepted] PHST- 2018/01/27 06:00 [pubmed] PHST- 2018/04/04 06:00 [medline] PHST- 2018/01/27 06:00 [entrez] AID - 10.1002/cbf.3319 [doi] PST - ppublish SO - Cell Biochem Funct. 2018 Mar;36(2):80-87. doi: 10.1002/cbf.3319. Epub 2018 Jan 25.