PMID- 37251542 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230531 IS - 2391-5463 (Print) IS - 2391-5463 (Electronic) VI - 18 IP - 1 DP - 2023 TI - Nucleophosmin 1 associating with engulfment and cell motility protein 1 regulates hepatocellular carcinoma cell chemotaxis and metastasis. PG - 20230708 LID - 10.1515/med-2023-0708 [doi] LID - 20230708 AB - The chemokine, C-X-C motif chemokine ligand 12 (CXCL12) and its G-protein-coupled receptor (GPCR) and C-X-C chemokine receptor type 4 (CXCR4), are closely associated with promoting hepatocellular carcinoma (HCC) chemotaxis and metastasis. The binding of CXCL12 and CXCR4 depends on the heterotrimeric Gi proteins to regulate actin polymerisation and mobility in HCC. Although the role of GPCR/Gi signalling in carcinogenesis migration has been intensively studied, the detailed mechanism remains largely unknown. In this study, a small interfering RNA technique was used to knock down the Nucleophosmin 1 (NPM1) gene expression. Through the chemotaxis and invasion assays, wound healing, proliferation, filamentous-actin, immunofluorescence, immunohistochemical assays, and co-immunoprecipitation assays, we investigated the specific biological role and underlying mechanisms of the NPM1 in HCC. Additionally, dimethyl fumarate (DMF), a fumaric acid ester, was used to inhibit the HCC cell chemokines and metastasis by regulating ELMO1 and NPM1. Therefore, this study reported that NPM1 gene expression was upregulated in the HCC tissues and cell lines. The NPM1 knockdown significantly inhibited the proliferation, migration, and chemotaxis of the HepG2 cells in vitro. Further mechanistic studies suggested that the NPM1 interacts with ELMO1 and the CXCL12/CXCR4 pathway activates NPM1-dependent regulation of the ELMO1 localisation. Furthermore, the DMF significantly inhibited tumour metastasis induced by the NPM1/ELMO1 signalling pathway, as observed in in vitro cell functional experiments. These data suggested that as a potentially novel therapeutic approach, the simultaneous targeting of NPM1 and ELMO1 could effectively be used to treat HCC. CI - (c) 2023 the author(s), published by De Gruyter. FAU - Yang, Gangqi AU - Yang G AD - Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550001, China. AD - General Surgery Department and Neurology Department, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Beijing 100053, China. AD - Guangdong Key Laboratory of Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong 518055, China. AD - Comprehensive Liver Cancer Center, 5th Medical Center of the PLA General Hospital, Beijing 100039, China. FAU - Li, Hongyan AU - Li H AD - General Surgery Department and Neurology Department, Xuanwu Hospital, National Clinical Research Center for Geriatric Diseases, Beijing 100053, China. FAU - Dong, Zheng AU - Dong Z AD - Comprehensive Liver Cancer Center, 5th Medical Center of the PLA General Hospital, Beijing 100039, China. FAU - Deng, Kai AU - Deng K AD - The First Affiliated Hospital of Chongqing Medical College, Chongqing 400016, China. FAU - Lu, Yinying AU - Lu Y AD - Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550001, China. AD - Comprehensive Liver Cancer Center, 5th Medical Center of the PLA General Hospital, Beijing 100039, China. AD - Guangdong Key Laboratory of Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong 518055, China. LA - eng PT - Journal Article DEP - 20230525 PL - Poland TA - Open Med (Wars) JT - Open medicine (Warsaw, Poland) JID - 101672167 PMC - PMC10224614 OTO - NOTNLM OT - DMF OT - ELMO1 OT - NPM1 OT - chemotaxis OT - hepatocellular carcinoma OT - metastasis COIS- Conflict of interest: The authors have no conflict of interest to declare. EDAT- 2023/05/30 13:07 MHDA- 2023/05/30 13:08 PMCR- 2023/05/25 CRDT- 2023/05/30 11:40 PHST- 2022/08/18 00:00 [received] PHST- 2023/03/24 00:00 [revised] PHST- 2023/04/17 00:00 [accepted] PHST- 2023/05/30 13:08 [medline] PHST- 2023/05/30 13:07 [pubmed] PHST- 2023/05/30 11:40 [entrez] PHST- 2023/05/25 00:00 [pmc-release] AID - med-2023-0708 [pii] AID - 10.1515/med-2023-0708 [doi] PST - epublish SO - Open Med (Wars). 2023 May 25;18(1):20230708. doi: 10.1515/med-2023-0708. eCollection 2023.