scholarly journals Aberrant expression of ZNF268 alters the growth and migration of ovarian cancer cells

2013 ◽  
Vol 6 (1) ◽  
pp. 49-54 ◽  
Author(s):  
LI HU ◽  
WEI WANG ◽  
JINYANG CAI ◽  
JUN LUO ◽  
YI HUANG ◽  
...  
2015 ◽  
Vol 16 (8) ◽  
pp. 3325-3331 ◽  
Author(s):  
Hao Zhuang ◽  
Man-Yin Zhao ◽  
Kai-Wen Hei ◽  
Bai-Cai Yang ◽  
Li Sun ◽  
...  

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Qingjuan Meng ◽  
Ningning Wang ◽  
Guanglan Duan

Abstract Background X inactivation-specific transcript (XIST) is the long non-coding RNA (lncRNA) related to cancer, which is involved in the development and progression of various types of tumor. However, up to now, the exact role and molecular mechanism of XIST in the progression of ovarian cancer are not clear. We studied the function of XIST in ovarian cancer cells and clinical tumor specimens. Methods RT-qPCR was performed to detect the expression levels of miR-335 and BCL2L2 in ovarian cancer cells and tissues. MTT and transwell assays were carried out to detect cell proliferation, migration, and invasion abilities. Western blot was performed to analyze the expression level of BCL2L2. The interaction between miR-335 and XIST/BCL2L2 was confirmed using a luciferase reporter assay. Results The inhibition of XIST can inhibit the proliferation invasion and migration of human ovarian cancer cells. In addition, the miR-335/BCL2L2 axis was involved in the functions of XIST in ovarian cancer cells. These results suggested that XIST could regulate tumor proliferation and invasion and migration via modulating miR-335/BCL2L2. Conclusion XIST might be a carcinogenic lncRNA in ovarian cancer by regulating miR-335, and it can serve as a therapeutic target in human ovarian cancer.


2021 ◽  
Vol 12 (4) ◽  
Author(s):  
Shourong Wang ◽  
Zixiang Wang ◽  
Jieyin Li ◽  
Junchao Qin ◽  
Jianping Song ◽  
...  

AbstractAberrant expression of splicing factors was found to promote tumorigenesis and the development of human malignant tumors. Nevertheless, the underlying mechanisms and functional relevance remain elusive. We here show that USP39, a component of the spliceosome, is frequently overexpressed in high-grade serous ovarian carcinoma (HGSOC) and that an elevated level of USP39 is associated with a poor prognosis. USP39 promotes proliferation/invasion in vitro and tumor growth in vivo. Importantly, USP39 was transcriptionally activated by the oncogene protein c-MYC in ovarian cancer cells. We further demonstrated that USP39 colocalizes with spliceosome components in nuclear speckles. Transcriptomic analysis revealed that USP39 deletion led to globally impaired splicing that is characterized by skipped exons and overrepresentation of introns and intergenic regions. Furthermore, RNA immunoprecipitation sequencing showed that USP39 preferentially binds to exon-intron regions near 5′ and 3′ splicing sites. In particular, USP39 facilitates efficient splicing of HMGA2 and thereby increases the malignancy of ovarian cancer cells. Taken together, our results indicate that USP39 functions as an oncogenic splicing factor in ovarian cancer and represents a potential target for ovarian cancer therapy.


Author(s):  
Jin Liu ◽  
Weiming Wang ◽  
Limin Chen ◽  
Yachai Li ◽  
Shuimiao Zhao ◽  
...  

Author(s):  
Wenwei Xu ◽  
Roman Mezencev ◽  
Byungkyu Kim ◽  
Lijuan Wang ◽  
John McDonald ◽  
...  

Cancer cells undergo a variety of biochemical and biophysical transformations when compared to identical cells displaying a healthy phenotypic state, cancer cells show a drastic reduction of stiffness upon malignancy[1, 2] and change of stiffness of single cells can indicate the presence of disease [3–6]. Besides, metastatic cancer has a higher deformability than their benign counterparts[7, 8]. Using atomic force microscopy, we demonstrated that cancerous ovarian cells (OVCAR3, OVCAR4, HEY and HEYA8) are substantially softer than the healthy immortalized ovarian surface epithelium (IOSE) cells. In addition, within the different types of cancerous ovarian cells, increased invasiveness and migration are directly correlated with increased cell deformability. These results indicate that stiffness of individual cells can distinguish not only ovarian cancer cells from healthy cells types, but also invasive cancer types from less invasive types. Stiffness may provide an alternative and convenient biomarker to grade the metastasis potential of cancer cells.


PLoS ONE ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. e0189524 ◽  
Author(s):  
Mian M. K. Shahzad ◽  
Mildred Felder ◽  
Kai Ludwig ◽  
Hannah R. Van Galder ◽  
Matthew L. Anderson ◽  
...  

2015 ◽  
Vol 27 (1) ◽  
pp. 198 ◽  
Author(s):  
Y.-S. Kim ◽  
K.-C. Choi

The ovary is the important organ to produce oocytes. Any disorder will affect embryo production. Ovarian cancer is one of gynecologic cancers in women which can affect ovarian functions. Oestradiol (E2) may be involved in ovarian cell growth and epithelial-mesenchymal transition (EMT) for diverse functions. EMT is an important process in embryo development and tumour migration or progression. Bis-phenol A (BPA) and nonyl-phenol (NP) have an estrogenic property, which can be suspected as endocrine disrupting chemicals (EDC). In this study, it has been examined whether BPA and NP can cause EMT process and migration in BG-1 ovarian cancer cells. To confirm the effect of these EDCs, BG-1 ovarian cancer cells were cultured and treated with DMSO (0.1%), E2 (10–7 M), BPA (10–6 M) and NP (10–6 M) for 0, 6, and 24 h. The mRNAs were extracted to perform reverse-transcription (RT)-PCR and the changes in the mRNA expressions were analysed by ANOVA test. Following treatments with BPA and NP, alterations of EMT markers; that is, vimentin and E-cadherin, were examined at mRNA levels by RT-PCR. The levels of vimentin were up-regulated by E2, BPA, or NP in a time-dependent manner. In addition, transcriptional factors of EMT response, i.e. snail and slug, were enhanced by these treatments more than 2 times. BG-1 cells were exposed to these EDCs for 0, 24, and 48 h. Vimentin and snail proteins were induced by E2, BPA, or NP, while the expression of E-cadherin was decreased by them. To reveal that this EMT response is affected by oestrogen receptor (ER), the cells were treated with these EDCs in the presence of an ER antagonist, ICI 182 780 (10–6 M). Treatment with ICI 182 780 reversed EDC-induced alteration of these EMT markers, E-cadherin, vimentin, and snail. Since EMT response can cause metastasis, a scratch assay was performed to show migration caused by BPA or NP. BPA or E2 enhanced migratory capability of these BG-1 cells. Taken together, these results indicate that BPA and NP, potential EDC, may have an ability to influence ovarian cancer metastasis via regulating snail and slug genes in ER-positive ovarian cancers. In a future study, their effects in inducing EMT and migration will be tested in a xenograft mouse model.This work was supported by a grant from the Next-Generation BioGreen 21 Program (no. PJ009599), Rural Development Administration, Republic of Korea.


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