scholarly journals Synthetic paclitaxel-octreotide conjugate reverses the resistance of paclitaxel in A2780/Taxol ovarian cancer cell line

2016 ◽  
Vol 37 (1) ◽  
pp. 219-226 ◽  
Author(s):  
Yang Shen ◽  
Xiao-Yu Zhang ◽  
Xi Chen ◽  
Li-Li Fan ◽  
Mu-Lan Ren ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line

scholarly journals Extracellular Matrix Proteins Expression Profiling in Chemoresistant Variants of the A2780 Ovarian Cancer Cell Line

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Radosław Januchowski ◽  
Piotr Zawierucha ◽  
Marcin Ruciński ◽  
Michał Nowicki ◽  
Maciej Zabel
Keyword(s):  
Ovarian Cancer ◽  
Extracellular Matrix ◽  
Drug Resistance ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Altered Expression ◽  
Expression Levels

Ovarian cancer is the leading cause of death among gynaecological malignancies. Extracellular matrix (ECM) can affect drug resistance by preventing the penetration of the drug into cancer cells and increased resistance to apoptosis. This study demonstrates alterations in the expression levels of ECM components and related genes in cisplatin-, doxorubicin-, topotecan-, and paclitaxel-resistant variants of the A2780 ovarian cancer cell line. Affymetrix Gene Chip Human Genome Array Strips were used for hybridisations. The genes that had altered expression levels in drug-resistant sublines were selected and filtered by scatter plots. The genes that were up- or downregulated more than fivefold were selected and listed. Among the investigated genes, 28 genes were upregulated, 10 genes were downregulated, and two genes were down- or upregulated depending on the cell line. Between upregulated genes 12 were upregulated very significantly—over 20-fold. These genes included COL1A2, COL12A1, COL21A1, LOX, TGFBI, LAMB1, EFEMP1, GPC3, SDC2, MGP, MMP3, and TIMP3. Four genes were very significantly downregulated: COL11A1, LAMA2, GPC6, and LUM. The expression profiles of investigated genes provide a preliminary insight into the relationship between drug resistance and the expression of ECM components. Identifying correlations between investigated genes and drug resistance will require further analysis.

scholarly journals Involvement of adaptor protein Crk in malignant feature of human ovarian cancer cell line MCAS

Oncogene ◽  
2006 ◽  
Vol 25 (25) ◽  
pp. 3547-3556 ◽  
Author(s):  
H Linghu ◽  
M Tsuda ◽  
Y Makino ◽  
M Sakai ◽  
T Watanabe ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Adaptor Protein ◽  
Cancer Cell Line ◽  
Human Ovarian Cancer ◽  
Human Ovarian Cancer Cell ◽  
Malignant Feature

Src tyrosine kinase promotes survival and resistance to chemotherapeutics in a mouse ovarian cancer cell line

2003 ◽  
Vol 309 (2) ◽  
pp. 377-383 ◽  
Author(s):  
Yolande Pengetnze ◽  
Mary Steed ◽  
Katherine F. Roby ◽  
Paul F. Terranova ◽  
Christopher C. Taylor
Keyword(s):  
Ovarian Cancer ◽  
Tyrosine Kinase ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Src Tyrosine Kinase

Isolation and characterization of stem-like cells from a human ovarian cancer cell line

2011 ◽  
Vol 363 (1-2) ◽  
pp. 257-268 ◽  
Author(s):  
Lijuan Wang ◽  
Roman Mezencev ◽  
Nathan J. Bowen ◽  
Lilya V. Matyunina ◽  
John F. McDonald
Keyword(s):  
Ovarian Cancer ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Human Ovarian Cancer ◽  
Human Ovarian Cancer Cell ◽  
Isolation And Characterization

scholarly journals Phosphoproteomic Analysis of Gossypol-Induced Apoptosis in Ovarian Cancer Cell Line, HOC1a

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Lixu Jin ◽  
Yuling Chen ◽  
Xinlin Mu ◽  
Qingquan Lian ◽  
Haiyun Deng ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Gynecological Cancer ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Actin Binding ◽  
Ovarian Cancer Cells ◽  
Cytoskeletal Organization

Ovarian cancer is a major cause for death of gynecological cancer patients. The efficacy of traditional surgery and chemotherapy is rather compromised and platinum-resistant cancer recurs. Finding new therapeutic targets is urgently needed to increase the survival rate and to improve life quality of patients with ovarian cancer. In the present work, phosphoproteomic analysis was carried out on untreated and gossypol-treated ovarian cancer cell line, HOC1a. We identified approximately 9750 phosphopeptides from 3030 phosphoproteins, which are involved in diverse cellular processes including cytoskeletal organization, RNA and nucleotide binding, and cell cycle regulation. Upon gossypol treatment, changes in phosphorylation of twenty-nine proteins including YAP1 and AKAP12 were characterized. Western blotting and qPCR analysis were used to determine expression levels of proteins in YAP1-related Hippo pathway showing that gossypol induced upregulation of LATS1, which phosphorylates YAP1 at Ser 61. Furthermore, our data showed that gossypol targets the actin cytoskeletal organization through mediating phosphorylation states of actin-binding proteins. Taken together, our data provide valuable information to understand effects of gossypol on protein phosphorylation and apoptosis of ovarian cancer cells.

scholarly journals Establishment and Characterization of a Novel Multidrug Resistant Human Ovarian Cancer Cell Line With Heterogenous MRP7 Overexpression

2021 ◽  
Vol 11 ◽  
Author(s):  
Jing-Quan Wang ◽  
Zhuo-Xun Wu ◽  
Yuqi Yang ◽  
Jin-Sui Li ◽  
Dong-Hua Yang ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Multidrug Resistance ◽  
Cell Line ◽  
Anticancer Drugs ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Chemotherapeutic Drugs ◽  
Mesenchymal Transition

Ovarian cancer is one of the leading female malignancies which accounts for the highest mortality rate among gynecologic cancers. Surgical cytoreduction followed by chemotherapy is the mainstay of treatment. However, patients with recurrent ovarian cancer are likely to exhibit resistance to chemotherapy due to reduced sensitivity to chemotherapeutic drugs. Adenosine triphosphate (ATP)-binding cassette (ABC) transporters have been extensively studied as multidrug resistance (MDR) mediators since they are responsible for the efflux of various anticancer drugs. Multidrug resistance protein 7 (MRP7, or ABCC10) was discovered in 2001 and revealed to transport chemotherapeutic drugs. Till now, only limited knowledge was obtained regarding its roles in ovarian cancer. In this study, we established an MRP7-overexpressing ovarian cancer cell line SKOV3/MRP7 via transfecting recombinant MRP7 plasmids. The SKOV3/MRP7 cell line was resistant to multiple anticancer drugs including paclitaxel, docetaxel, vincristine and vinorelbine with a maximum of 8-fold resistance. Biological function of MRP7 protein was further determined by efflux-accumulation assays. Additionally, MTT results showed that the drug resistance of the SKOV3/MRP7 cells was reversed by cepharanthine, a known inhibitor of MRP7. Moreover, we also found that the overexpression of MRP7 enhanced the migration and epithelial-mesenchymal transition (EMT) induction. In conclusion, we established an in vitro model of MDR in ovarian cancer and suggested MRP7 overexpression as the leading mechanism of chemoresistance in this cell line. Our results demonstrated the potential relationship between MRP7 and ovarian cancer MDR.

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