PMID- 33768003 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220421 IS - 2234-943X (Print) IS - 2234-943X (Electronic) IS - 2234-943X (Linking) VI - 11 DP - 2021 TI - Overexpression of NPTX2 Promotes Malignant Phenotype of Epithelial Ovarian Carcinoma via IL6-JAK2/STAT3 Signaling Pathway Under Hypoxia. PG - 643986 LID - 10.3389/fonc.2021.643986 [doi] LID - 643986 AB - BACKGROUND: Epithelial ovarian cancer (EOC) is the main subtype of ovarian cancer and shows an aggressive phenotype and poor prognosis. Neuronal pentraxin II (NPTX2) is a member of the neuronal pentraxin family and plays a contradictory role in different tumors. However, there has been no report about the possible role and effect of NPTX2 in EOC. METHODS: Bioinformatics analysis, qPCR, western blotting and immunohistochemistry were used to detect the expression of NPTX2 in EOC. Lentivirus-based transfection for NPTX2 overexpression or knockdown was performed on the EOC cell lines A2780, HEY, SKOV3 and OVCAR-3. The effect of NPTX2 on the malignant phenotype of EOC was examined through methods of MTS assay, Edu assay, transwell assay, western blotting analysis, qPCR analysis, luciferase reporter assay and xenograft experiment. RESULTS: EOC tissues showed higher NPTX2 expression than the normal tissues with poor prognosis. NPTX2 overexpression can promote the proliferation, invasion, migration and tumorigenesis of EOC via IL6-JAK2/STAT3 signaling pathway. Moreover, hypoxia-inducible factor-1(HIF-1) can promote the transcription and expression of NPTX2 under the hypoxic environment. NPTX2 knockdown abolished the hypoxia-induced malignant phenotypes in ECO. CONCLUSIONS: The above results suggest that NPTX2 may play a novel role in ovarian cancer's malignant phenotype and act as a promising treatment target for EOC molecular therapy. CI - Copyright (c) 2021 Han, Lu, Li, Xia, Wen, Feng, Ju, Chen and Wu. FAU - Han, Xiaotian AU - Han X AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Lu, Yechen AU - Lu Y AD - Wound Repair Center, Ruijin Hospital, Shanghai Jiaotong University, Shanghai, China. FAU - Li, Xiaoqi AU - Li X AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Xia, Lingfang AU - Xia L AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Wen, Hao AU - Wen H AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Feng, Zheng AU - Feng Z AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Ju, Xingzhu AU - Ju X AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Chen, Xiaojun AU - Chen X AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. FAU - Wu, Xiaohua AU - Wu X AD - Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. AD - Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China. LA - eng PT - Journal Article DEP - 20210309 PL - Switzerland TA - Front Oncol JT - Frontiers in oncology JID - 101568867 PMC - PMC7985451 OTO - NOTNLM OT - IL6-JAK2/STAT3 signaling pathway OT - NPTX2 OT - epithelial ovarian carcinoma (EOC) OT - hypoxia OT - malignant phenotype COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/03/27 06:00 MHDA- 2021/03/27 06:01 PMCR- 2021/01/01 CRDT- 2021/03/26 07:00 PHST- 2020/12/19 00:00 [received] PHST- 2021/01/25 00:00 [accepted] PHST- 2021/03/26 07:00 [entrez] PHST- 2021/03/27 06:00 [pubmed] PHST- 2021/03/27 06:01 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fonc.2021.643986 [doi] PST - epublish SO - Front Oncol. 2021 Mar 9;11:643986. doi: 10.3389/fonc.2021.643986. eCollection 2021.