ATR-FTIR spectroscopy shows changes in ovarian cancer cells after incubation with novel organoamidoplatinum(ii) complexes

The Analyst ◽  
2018 ◽  
Vol 143 (24) ◽  
pp. 6087-6094 ◽  
Author(s):  
Khansa Al-Jorani ◽  
Anja Rüther ◽  
Rukshani Haputhanthri ◽  
Glen B. Deacon ◽  
Hsiu Lin Li ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Ftir Spectroscopy ◽  
Cancer Cells ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Ovarian Cancer Cells ◽  
Line P

ATR-FTIR spectroscopy has been applied to compare the effect of new organoamidoplatinum(ii) complexes with cisplatin on cells from a cisplatin-sensitive and a cisplatin-resistant ovarian cancer cell line.

scholarly journals Equol-induces apoptosis in chemoresistant ovarian cancer cells via external pathway

2015 ◽  
Vol 11 (1) ◽  
pp. 75
Author(s):  
Xue-Mei Gong ◽  
Cheng-Jiu Hu ◽  
Quan-Jing Zhao ◽  
Dong-Mei Shi
Keyword(s):  
Ovarian Cancer ◽  
Cancer Cells ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Bioactive Molecules ◽  
Ovarian Cancer Cells ◽  
Wide Range

<p>Polyphenolic compounds present in fruits, vegetables and grains are bioactive molecules which elicit a wide range of responses both in vivo and in vitro. The aim of this study was to investigate whether the soybean isoflavone Equol could induce apoptosis in ovarian cancer cells. In this study, we evaluated molecular events associated with apoptosis induced by Equol and paclitaxel (PTX) in an ovarian cancer cell line SKOV-3. To assess whether growth inhibition was due to apoptosis, flow cytometry, colorimetry experiments, immunoblot analyses through measuring DNA fragmentation, the level of TRAIL,the cleavage of poly(ADP-ribose) polymerase (PARP) and the activation of caspase-3, -8 and -9 were also performed. Additional markers of apoptosis were also measured like phosphatidylserine externalization and morphological changes. In addition, glycoprotein P (P-gp) activity in SKOV-3 ovarian cancer cell line was also estimated. The experimental results showed that apoptosis was induced by extrinsic pathway triggered by certain TNF family members. Overall results suggested that Equol induces apoptosis in SKOV-3 cells via a TRAIL and caspase 8-dependent pathway whereas paclitaxel leads to smaller apoptotic events when compared to that of Equol.</p>

scholarly journals Proapoptotic Protein Smac Mediates Apoptosis in Ovarian Cancer Cells When ‎Treated with the Carpachromene ‎

2021 ◽  
Author(s):  
Yunjing Song ◽  
Jian Wang ◽  
Chunnian Zhang ◽  
Ying Yu ◽  
Hong Cai
Keyword(s):  
Ovarian Cancer ◽  
Cancer Cells ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Ovarian Cancer Cells ◽  
Human Ovarian Cancer ◽  
Human Ovarian Cancer Cell

IntroductionWe also investigated the Carpachromene in the cytotoxicity studies against common human ovarian cancer cell ‎line i.e., SW 626, in-vitro.Material and methodsCell viability of Carpachromene was very low against common ‎human ovarian cancer ‎cell line i.e. SW 626 without any cytotoxicity on normal cell line. To compare the ‎biological activities of molecules, the enzymes used are α-glucosidase, acetylcholinesterase, respectively. Finally, ‎calculations were made using the molecular docking method to compare the biological activity of the ‎carpachromene molecule. We then examined whether the release of Smac is necessary for apoptosis in ovarian ‎cancer cells using the SW 626‎ cell line. We first examined mitochondrial and cytosolic Smac levels after ‎Carpachromene treatment. ‎ResultsFollowing the docking calculations, the properties of the carpachromene molecule ‎were examined by ADME/T analysis in order to be used as a drug in the future. In addition, the anti-oxidant ‎properties of the molecules were examined in both gas and water phase with the HF/6-31g basis set with the ‎Gaussian software program. As shown, exposure of ovarian cancer cells to Carpachromene decreased ‎mitochondrial Smac and increased cytosolic Smac levels in a time-dependent fashion. As depicted in results, a ‎decrease in Smac expression was confirmed by Western blot. Silencing of Smac significantly inhibited ‎Carpachromene-induced caspase-3 cleavage and attenuated apoptosis in these cells Moreover, overexpression of ‎a Smac heptapeptide (Smac-N7) enhanced Carpachromene-induced cell deathConclusionsAccording to the above findings, the Carpachromene may be administrated for the treatment of several types of ‎human ovarian cancer in humans. ‎

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 The Effects of Silibinin on SORT1 Gene Expression and A2780s Ovarian Cancer Cell Line Viability

2021 ◽  
Vol 6 (3) ◽  
pp. 80-85
Author(s):  
Zahra Lotfi ◽  
Elham Salehi ◽  
Majid Morovati-sharifabad ◽  
Fatemeh Sarkargar ◽  
Gholamhosein Pourghanbari
Keyword(s):  
Gene Expression ◽  
Ovarian Cancer ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Ovarian Cancer Cells ◽  
Dependent Manner ◽  
Anticancer Effects

Introduction: Ovarian cancer is one of the deadliest genital cancers among females and mainly originates from epithelial cells. The cancer generally remains asymptomatic until metastasis. Silibinin, a derivative of Silybum marianum, is a flavonoid with anticancer effects against many tumor cells. The sortilin1 (SORT1) gene has been shown to be overexpressed in ovarian tumors. Here, we investigated the effects of silibinin on SORT1 gene expression and the viability of ovarian A2780s cancer cell line.Methods: The A2780s ovarian cancer cell line was treated with silibinin at the concentrations of 50, 100, and 200 μM for 24 hours, and IC50 (half-maximal inhibitory concentration) was determined. Then the viability percentage of the cells treated with 100 μM silibinin was determined at 24, 48, and 72 hours. After 24 and 48 hours exposure to 100 μM silibinin, RNA was extracted, followed by cDNA synthesis and SORT1 gene expression analysis using glyceraldehyde 3-phosphate dehydrogenase (GAPDH) as the reference gene by real-time Polymerase chain reaction (PCR).Results: Silibinin in a dose- and time-dependent manner reduced the viability of ovarian cancer cells (P < 0.05), accompanied by a reduction in SORT1 gene expression.Conclusion: The present study showed that silibinin had toxic effects against the A2780s ovarian cancer cell line, suggesting this compound as a potential anticancer agent.

Upregulation of HSPB1 heat shock gene and ERCC1 gene on serous ovarian cancer cell line in HIPEC in vitro model.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e17559-e17559
Author(s):  
Warne Pedro Andrade ◽  
Bryan Ôrtero Perez Gonçalves ◽  
Luciana Maria Silva ◽  
Agnaldo Lopes Dasilva Filho
Keyword(s):  
Ovarian Cancer ◽  
Heat Shock ◽  
Cancer Cells ◽  
Cell Line ◽  
Poor Prognosis ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Ovarian Cancer Cells ◽  
Serous Ovarian Cancer

e17559 Background: Epithelial ovarian cancer (EOC) is the most lethal gynecological malignancy, with the presence of chemoresistance contributing to the poor prognosis. Approximately 80% of cases are diagnosed in stage III C and are treated with cytoreduction surgery followed by adjuvant chemotherapy. However, 70 percent of these patients have pelvic and peritoneal recurrences. Heat Shock Proteins are produced in response to pathophysiological stress and take part in several stages of carcinogenesis, acting primarily as anti-apoptotic agents. They are also implicated in resistance to chemotherapy in several types of tumors. In an attempt to improve oncological results, new therapeutic approaches such as intraperitoneal chemotherapy and HIPEC have been proposed in recent studies with gains in overall survival (OS). However, some questions have not yet been answered. Methods: in the study cultures of ovarian cancer cells were performed TOV-21G (clear cell carcinoma), SK-OV-3 (platinum-resistant serous carcinoma) and OV-90 (high-grade serous). Cell cytotoxicity (MTT) assay was performed. The ovarian cancer cells lines were treated with cisplatin in normothermia (37 degrees Celsius) and cisplatin in hyperthermia (41 degrees Celsius) and a control group treated with PBS saline solution at (37 degrees Celsius and 41 degrees Celsius) for 24 hours followed by new supplementation and a new 3-hours incubation. Clonogenic assay was performed. Then they were submitted to RNA extraction and reverse transcription. qRT-PCR was performed to compare the expression of TRAP1, HSPB1, HSPD1, HSPA1A, HSPA1L and ERCC1 in different treatments. Results: There was no statistical difference in relation to cytotoxicity between treatment with heated cisplatin compared to treatment with normothermia. It was not possible to evaluate the expression of the heat shock genes in the SK-OV3 lineage.The HSPB1, HSPD1, TRAP1 and ERCCC1 genes were positively regulated in OV-90 submitted to hyperthermia in relation to normothermia and there were no significant changes in expression in the TOV-21-G. Conclusions: In conclusion, we suggest that OV-90 Serous ovarian cancer cell line was more susceptibly at hyperthermia by cisplatin. The HSPA1A, HSPA1L, TRAP1 and HSPB1 heat shock genes and ERCC1 genes were upregulated in the heated cisplatin group and contribute to a poor prognosis related to resistance. The HSPB1 and ERCC1 genes had the greatest expression with 1000x higher.Thus, it is necessary to evaluate these genes in a clinical study of HIPEC.

scholarly journals MicroRNA-1284 Inhibits Cell Viability and Induces Apoptosis of Ovarian Cancer Cell Line OVCAR3

2016 ◽  
Vol 24 (6) ◽  
pp. 429-435 ◽  
Author(s):  
Changqing Pan ◽  
Dan Wang ◽  
Yao Zhang ◽  
Wenliang Yu
Keyword(s):  
Ovarian Cancer ◽  
Cell Viability ◽  
Cell Line ◽  
Cancer Cell ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cell Line ◽  
Cancer Cell Line ◽  
Akt Pathway ◽  
Ovarian Cancer Cells ◽  
Akt Inhibitor

Ovarian cancer is a malignancy with high mortality among women. Multiple reports show that microRNAs (miRs) act as regulators in ovarian cancer inhibition, while the role of miR-1284 in ovarian cancer is still unknown. This study aimed to investigate the effects of miR-1284 on ovarian cancer cells. Human ovarian cancer cell line OVCAR3 was cultured and transfected with miR-1284 mimics, inhibitors, or control. Viability and apoptosis of transfected cells were then determined by MTT assay, BrdU assay, and flow cytometry. Expression changes of p27, p21, and PI3K/Akt pathway-related proteins were measured by Western blot. Results showed that miR-1284 overexpression suppressed cell viability while increasing the apoptosis in OVCAR3 cells. Moreover, the expression level of p27 was upregulated by miR-1284 overexpression. Furthermore, miR-1284 overexpression and Akt inhibitor GSK690693 downregulated the levels of p-Akt and Bcl-2 while upregulating the levels of Bax and caspase 3. However, miR-1284 suppression attenuated the regulatory effects of GSK690693 on these proteins. In conclusion, miR-1284 could inhibit cell viability via regulating the expression of p27 and induce apoptosis via regulating the PI3K/Akt pathway in OVCAR3 cells.

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.

Sign in / Sign up

Export Citation Format

Share Document