scholarly journals Songorine suppresses cell growth and metastasis in epithelial ovarian cancer via the Bcl‑2/Bax and GSK3β/β‑catenin signaling pathways

2019 ◽  
Author(s):  
Hongxia Zhang ◽  
Ruifeng Dong ◽  
Ping Zhang ◽  
Yankui Wang
2022 ◽  
Author(s):  
Damieanus Ochola ◽  
Shirisha Jonnalagadda ◽  
Swetha Peddibhotla ◽  
Tasmin Omy ◽  
Mark Reedy ◽  
...  

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Deying Wang ◽  
Yulan Cui ◽  
Aili Xu ◽  
Lin Zhao ◽  
Peiling Li

Abstract Background Epithelial ovarian cancer (EOC), a subclass of ovarian cancer (OC), is usually diagnosed at advanced stages due to the lack of effective screening means. Mounting reports have disclosed the vitally important roles of microRNAs (miRNAs) in carcinogenesis. Here, we aimed to find out possible miRNAs participating in EOC development. Methods qRT-PCR ad western blot respectively examined the mRNA and protein levels of studied genes. CCK-8, colony formation, flow cytometry, TUNEL and spheroid formation assays were appropriately employed for examining cell proliferation, cell cycle, apoptosis and stemness. The interaction between molecules was affirmed by luciferase reporter, RNA pull down and ChIP assays. Results In consistent with the observation of a past study, miR-596 expression was relatively low in EOC cells. Up-regulating miR-596 suppressed EOC cell proliferation and stemness. EP300 transcriptionally activated miR-596 to serve as a tumor-repressor in EOC. Then BRD4 and KPNA4, whose knockdown led to restraining effects on cell growth and stemness, were both revealed to be targeted by miR-596 in EOC. Lastly, rescue assays affirmed the tumor-restraining role of miR-596-BRD4/KPNA4 axis in EOC. Conclusion EP300-activated miR-596 hampered cell growth and stemness via targeting BRD4 and KPNA4 in EOC, proofing miR-596 as a promising therapeutic target in treating EOC patients.


2020 ◽  
Vol 11 ◽  
Author(s):  
Abdul K. Siraj ◽  
Poyil Pratheeshkumar ◽  
Sasidharan Padmaja Divya ◽  
Sandeep Kumar Parvathareddy ◽  
Khadija A. Alobaisi ◽  
...  

Epithelial ovarian cancer (EOC) is the most lethal gynecological malignancy. Despite current therapeutic and surgical options, advanced EOC shows poor prognosis. Identifying novel molecular therapeutic targets is highly needed in the management of EOC. Krupple-like factor 5 (KLF5), a zinc-finger transcriptional factor, is highly expressed in a variety of cancer types. However, its role and expression in EOC is not fully illustrated. Immunohistochemical analysis was performed to assess KLF5 protein expression in 425 primary EOC samples using tissue microarray. We also addressed the function of KLF5 in EOC and its interaction with signal transducer and activator of transcription 3 (STAT3) signaling pathway. We found that KLF5 overexpressed in 53% (229/425) of EOC samples, and is associated with aggressive markers. Forced expression of KLF5 enhanced cell growth in low expressing EOC cell line, MDAH2774. Conversely, knockdown of KLF5 reduced cell growth, migration, invasion and progression of epithelial to mesenchymal transition in KLF5 expressing cell lines, OVISE and OVSAHO. Importantly, silencing of KLF5 decreased the self-renewal ability of spheroids generated from OVISE and OVSAHO cell lines. In addition, downregulation of KLF5 potentiated the effect of cisplatin to induce apoptosis in these cell lines. These data reveals the pro-tumorigenic role of KLF5 in EOC and uncover its role in activation of STAT3 signaling pathway, suggesting the importance of KLF5 as a potential therapeutic target for EOC therapy.


2021 ◽  
Vol 22 (11) ◽  
pp. 5714
Author(s):  
Gwan Hee Han ◽  
Ilseon Hwang ◽  
Hanbyoul Cho ◽  
Kris Ylaya ◽  
Jung-A Choi ◽  
...  

Hormone receptor expression patterns often correlate with infiltration of specific lymphocytes in tumors. Specifically, the presence of specific tumor-infiltrating lymphocytes (TILs) with particular hormone receptor expression is reportedly associated with breast cancer, however, this has not been revealed in epithelial ovarian cancer (EOC). Therefore, we investigated the association between hormone receptor expression and TILs in EOC. Here we found that ERα, AR, and GR expression increased in EOC, while PR was significantly reduced and ERβ expression showed a reduced trend compared to normal epithelium. Cluster analysis indicated poor disease-free survival (DFS) in AR+/GR+/PR+ subgroup (triple dominant group); while the Cox proportional-hazards model highlighted the triple dominant group as an independent prognostic factor for DFS. In addition, significant upregulation of FoxP3+ TILs, PD-1, and PD-L1 was observed in the triple dominant group compared to other groups. NanoString analyses further suggested that tumor necrosis factor (TNF) and/or NF-κB signaling pathways were activated with significant upregulation of RELA, MAP3K5, TNFAIP3, BCL2L1, RIPK1, TRAF2, PARP1, and AKT1 in the triple dominant EOC group. The triple dominant subgroup correlates with poor prognosis in EOC. Moreover, the TNF and/or NF-κB signaling pathways may be responsible for hormone-mediated inhibition of the immune microenvironment.


Oncology ◽  
2000 ◽  
Vol 59 (Suppl. 1) ◽  
pp. 45-49 ◽  
Author(s):  
Tetsu Yano ◽  
Sinisa Radulovic ◽  
Yutaka Osuga ◽  
Koji Kugu ◽  
Hiroyuki Yoshikawa ◽  
...  

2016 ◽  
Vol 141 ◽  
pp. 149
Author(s):  
J.H. Choi ◽  
W. Yang ◽  
D.B. Chay ◽  
J. Kong ◽  
G.S. Sohn ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document