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Chemotherapy resistance ovarian carcinoma

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https://www.readbyqxmd.com/read/29192345/transporter-mediated-interaction-between-platinum-drugs-and-sorafenib-at-the-cellular-level
#1
Verena Schneider, Selim Chaib, Claudia Spanier, Mandy Knapp, Violeta Moscvin, Laura Scordovillo, Alessandra Ewertz, Ulrich Jaehde, Ganna V Kalayda
Combining the multikinase inhibitor sorafenib with the platinum-based chemotherapy of solid tumors was expected to improve treatment outcome. However, in many clinical trials, no benefit from sorafenib addition to the platinum-containing regimen could be demonstrated. Moreover, in some studies, decreased survival of ovarian cancer patients as well as non-small cell lung cancer patients with squamous cell histology was observed. The aim of this study was to investigate the cellular mechanisms of the pharmacological interaction between platinum drugs and sorafenib in different cancer cell lines...
November 30, 2017: AAPS Journal
https://www.readbyqxmd.com/read/29176691/midkine-derived-from-cancer-associated-fibroblasts-promotes-cisplatin-resistance-via-up-regulation-of-the-expression-of-lncrna-anril-in-tumour-cells
#2
Dongya Zhang, Liang Ding, Yi Li, Jing Ren, Guoping Shi, Yong Wang, Shuli Zhao, Yanhong Ni, Yayi Hou
Midkine (MK) is a heparin-binding growth factor that promotes carcinogenesis and chemoresistance. The tumour microenvironment (TME) can affect chemotherapy sensitivity. However, the role of stromal-derived MK, especially in cancer-associated fibroblasts (CAFs), is unclear. Here, we confirmed that MK decreased cisplatin-induced cell death in oral squamous cell carcinoma (OSCC) cells, ovarian cancer cells and lung cancer cells. We also isolated primary CAFs (n = 3) from OSCC patients and found that CAFs secreted increased levels of MK, which abrogated cisplatin-induced cell death...
November 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29172280/relationships-of-ex-vivo-drug-resistance-assay-and-cytokine-production-with-clinicopathological-features-in-the-primary-cell-culture-of-thai-ovarian-and-fallopian-tube-cancer-patients
#3
May Thuu Mon, Supachai Yodkeeree, Wanisa Punfa, Sonthaya Umsumarng, Suree Lekwanavijit, Sumalee Siriaunkgul, Prapaporn Suprasert, Pornngarm Limtrakul
Objective: Our goal was to determine the ex-vivo drug resistance assay, as well as the cytokine production, in response to platinum-based chemotherapy treatment in primary culture cells established from the tumor tissue of ovarian or fallopian tube carcinoma patients, and to predict the clinical responses to chemotherapy. Methods: Sensitivity to the platinum-based drug was analyzed in two ovarian cancer cell lines and 19 tumor samples using the primary cell culture obtained from 19 patients having ovarian or fallopian tube cancer that had undergone surgery from 2014 to 2017...
November 26, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29168038/ovarian-serous-carcinomas-acquire-cisplatin-resistance-and-increased-invasion-through-downregulation-of-the-high-temperature-required-protein-a2-htra2-following-repeated-treatment-with-cisplatin
#4
Hiroaki Soyama, Morikazu Miyamoto, Masashi Takano, Tadashi Aoyama, Hiroko Matsuura, Takahiro Sakamoto, Kazuki Takasaki, Mika Kuwahara, Kento Kato, Tomoyuki Yoshikawa, Hideki Iwahashi, Hitoshi Tsuda, Kenichi Furuya
High-temperature-required protein A2 (HtrA2) is one of the serine proteases related to apoptosis. HtrA2 protein expression has been associated with cisplatin resistance and poor prognosis in ovarian serous adenocarcinoma (SAC). The aim of this study was to understand the influence of HtrA2 on repeated treatment with cisplatin. The change in HtrA2 expression in 31 ovarian cancers was investigated by immunohistochemical analysis, before and after cisplatin-based chemotherapy, and the association between HtrA2 expression after chemotherapy and prognosis was analyzed...
November 22, 2017: Medical Oncology
https://www.readbyqxmd.com/read/29143144/carcinosarcoma-of-the-ovary-compared-to-ovarian-high-grade-serous-carcinoma-impact-of-optimal-cytoreduction-and-standard-adjuvant-treatment
#5
Ibrahim Yalcin, Mehmet Mutlu Meydanli, Ahmet Taner Turan, Salih Taskin, Mustafa Erkan Sari, Tayfun Gungor, Ozgur Akbayir, Ali Ayhan
OBJECTIVE: The purpose of this retrospective study was to compare the prognoses of women with ovarian carcinosarcoma (OCS) who had optimal cytoreductive surgery followed by platinum plus taxane combination chemotherapy to those of women with ovarian high-grade serous carcinoma (HGSC) treated in the same manner. METHODS: A multicenter, retrospective department database review was performed to identify patients with OCS at eight gynecologic oncology centers in Turkey...
November 16, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29123378/10h-3-6-diazaphenothiazine-induces-g2-m-phase-cell-cycle-arrest-and-caspase-dependent-apoptosis-and-inhibits-cell-invasion-of-a2780-ovarian-carcinoma-cells-through-the-regulation-of-nf-%C3%AE%C2%BAb-and-birc6-xiap-complexes
#6
Jianxin Zhang, Chen Ming, Wenzhi Zhang, Patrick Nwabueze Okechukwu, Beata Morak-Młodawska, Krystian Pluta, Małgorzata Jeleń, Abdah Md Akim, Kok-Pian Ang, Kah Kooi Ooi
The asymptomatic properties and high treatment resistance of ovarian cancer result in poor treatment outcomes and high mortality rates. Although the fundamental chemotherapy provides promising anticancer activities, it is associated with severe side effects. The derivative of phenothiazine, namely, 10H-3,6-diazaphenothiazine (PTZ), was synthesized and reported with ideal anticancer effects in a previous paper. In this study, detailed anticancer properties of PTZ was examined on A2780 ovarian cancer cells by investigating the cytotoxicity profiles, mechanism of apoptosis, and cell invasion...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29117515/metformin-and-epothilone-a-treatment-up-regulate-pro-apoptotic-parp-1-casp-3-and-h2ax-genes-and-decrease-of-akt-kinase-level-to-control-cell-death-of-human-hepatocellular-carcinoma-and-ovary-adenocarcinoma-cells
#7
Aneta Rogalska, Barbara Bukowska, Agnieszka Marczak
High mortality rates in ovarian and liver cancer are largely a result of resistance to currently used chemotherapy. Here, we investigated genotoxic and pro-oxidant effects of metformin (MET) and epothilone A (A) in combination with respect to apoptosis in HepG2 and SKOV-3 cancer cells. Reactive oxygen species (ROS) was studied using 2',7'-dichlorodihydrofluoresein diacetate, and samples were analyzed for the presence and absence of the N-acetylcysteine (NAC). Expression of genes involved in programmed cell death, oxidative and alkylating DNA damage was measured...
November 5, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29113212/knockdown-of-fuse-binding-protein-1-enhances-the-sensitivity-of-epithelial-ovarian-cancer-cells-to-carboplatin
#8
Jinli Zhang, Xifeng Xiong, Xing Hua, Wenjuan Cao, Shengnan Qin, Libing Dai, Peihong Liang, Huiling Zhang, Zhihe Liu
Epithelial ovarian cancer (EOC) affects almost 25,000 women annually and is the fifth most common malignancy in women in North America. A combination of surgery and cytotoxic chemotherapy may produce a favorable clinical response. The platinum-paclitaxel combination regimen is the chemotherapy gold-standard for advanced ovarian cancer, and carboplatin is one of the agents in this combination therapy. However, the majority of patients eventually experience a relapse due to the development of platinum resistance...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29104587/notch-and-its-oncogenic-activity-in-human-malignancies
#9
REVIEW
Marlena Brzozowa-Zasada, Adam Piecuch, Marek Michalski, Oliwia Segiet, Józef Kurek, Marzena Harabin-Słowińska, Romuald Wojnicz
Background: Increasing evidence has demonstrated that Notch signaling is deregulated in human hematological malignancies and solid tumors. This signaling has a protumorigenic effect but may also act as a tumor suppressor. How induction of a single pathway gives rise to the opposite effects in different cell types is still unknown. Methods: This review article includes available data from peer-reviewed publications associated with the role of Notch signaling during cancer pathogenesis...
2017: European Surgery: ACA: Acta Chirurgica Austriaca
https://www.readbyqxmd.com/read/29079264/diagnostic-and-prognostic-biomarkers-in-ovarian-cancer-and-the-potential-roles-of-cancer-stem-cells-an-updated-review
#10
REVIEW
Thingreila Muinao, Hari Prasanna Deka Boruah, Mintu Pal
Ovarian carcinomas relate to highest death rate in gynecologic malignancies as absence of symptoms shield the disease in the early stage. Current evidences have been devoted to discovering early effective screening mechanism prior to the onset of clinical symptoms. Therefore, biomarkers are the crucial tools that are capable of predicting progression, risk stratification and overall therapeutic benefit to fight against this deadly disease. Although recent studies have revealed serum protein markers, CA-125, HE4, mesothelin etc...
October 24, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29066646/recurrence-of-immature-ovarian-teratoma-as-malignant-follicular-carcinoma-with-liver-and-peritoneal-metastasis-22-years-after-completion-of-initial-treatment
#11
Nicholas Brian Shannon, Norman Hok Ling Chan, Melissa Ching Ching Teo
Growing tumour syndrome (GTS) is a rare event in which germ cell tumours treated with chemotherapy undergo maturation, acquire resistance to chemotherapy and regrow. The optimum treatment strategy is complete surgical excision. We report on a case of GTS with malignant metastases to the liver presenting 22 years after completion of treatment for immature teratoma, successfully managed with surgical resection alone.
October 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29038174/tumor-associated-macrophages-tams-depend-on-zeb1-for-their-cancer-promoting-roles
#12
Marlies Cortés, Lidia Sanchez-Moral, Oriol de Barrios, María J Fernández-Aceñero, M C Martínez-Campanario, Anna Esteve-Codina, Douglas S Darling, Balázs Győrffy, Toby Lawrence, Douglas C Dean, Antonio Postigo
Accumulation of tumor-associated macrophages (TAMs) associates with malignant progression in cancer. However, the mechanisms that drive the pro-tumor functions of TAMs are not fully understood. ZEB1 is best known for driving an epithelial-to-mesenchymal transition (EMT) in cancer cells to promote tumor progression. However, a role for ZEB1 in macrophages and TAMs has not been studied. Here we describe that TAMs require ZEB1 for their tumor-promoting and chemotherapy resistance functions in a mouse model of ovarian cancer...
November 15, 2017: EMBO Journal
https://www.readbyqxmd.com/read/29033584/dna-ploidy-and-s-phase-fraction-analysis-in-peritoneal-carcinomatosis-from-ovarian-cancer-correlation-with-clinical-pathological-factors-and-response-to-chemotherapy
#13
Silvia Carloni, Giulia Gallerani, Anna Tesei, Emanuela Scarpi, Giorgio Maria Verdecchia, Salvatore Virzì, Francesco Fabbri, Chiara Arienti
OBJECTIVE: We investigated the correlation between ploidy or S-phase fraction (SPF) and the clinical pathological characteristics of patients with peritoneal carcinomatosis from ovarian cancer. We also assessed their relation with the in vivo and in vitro response to several chemotherapeutic agents. PATIENTS AND METHODS: Fifty-three patients with peritoneal carcinomatosis from ovarian cancer were enrolled. Frozen tumor tissue was dissociated by a detergent-trypsin method, and the resulting cell suspension was stained with RNase A and propidium iodide...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29019869/the-analysis-of-cell-cycle-related-proteins-in-ovarian-clear-cell-carcinoma-versus-high-grade-serous-carcinoma
#14
Yukiko Hazama, Takuya Moriya, Mika Sugihara, Rikiya Sano, Mitsuru Shiota, Takafumi Nakamura, Koichiro Shimoya
In Japan, the frequency of ovarian clear cell carcinoma (CCC) is twice as high as that in the United States and Europe. Often, patient prognosis of CCC is poor because of chemoresistance. Here, we focus on the cell cycle, which is one of the mechanisms of chemoresistance. To detect the informative markers and improve the strategy of chemotherapy for CCC, we performed immunochemical staining of cell cycle-related proteins in ovarian malignant tumors. We detected that each of the 29 samples of CCC and high-grade serous carcinoma (HGSC) were necessary to reveal the significant differences in immunostaining and prognosis...
October 10, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28989055/down-regulation-of-hectd3-by-her2-inhibition-makes-serous-ovarian-cancer-cells-sensitive-to-platinum-treatment
#15
Tong Shu, Yi Li, Xiaowei Wu, Bin Li, Zhihua Liu
Resistance to platinum-based chemotherapy is a major cause of treatment failure in patients with epithelial ovarian cancer and predicts a poor prognosis. Previously, we found that HECTD3 confers cancer cell resistance to apoptosis. However, the significance of HECTD3 expression in ovarian cancer and its regulatory mechanisms were unknown. Here, we found that HECTD3 depletion promotes carboplatin-induced apoptosis in both an ovarian cancer cell model and a xenograft mouse model. Moreover, high HECTD3 expression is significantly associated with poor platinum response and prognosis in ovarian cancer patients...
October 6, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28977941/ccne1-expression-in-high-grade-serous-carcinoma-does-not-correlate-with-chemoresistance
#16
Stav Sapoznik, Sarit Aviel-Ronen, Keren Bahar-Shany, Oranit Zadok, Keren Levanon
Delayed diagnosis of ovarian cancer, as well as high recurrence rates and lack of personalized therapy options, are among the causes for poor survival figures. Much effort is made towards developing new therapeutic possibilities, however predictive biomarkers are still unavailable. CCNE1 amplification, occurring in ∼20% of the high grade serous ovarian tumors, was previously proposed as a marker for platinum resistance and poor prognosis as well as for CDK2 inhibition. The current study aimed to examine the role of CCNE1 positive-immunostain as a predictor of first-line taxane-platinum chemoresistance...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28974236/endometriosis-is-the-independent-prognostic-factor-for-survival-in-chinese-patients-with-epithelial-ovarian-carcinoma
#17
Tong Ren, Shu Wang, Jian Sun, Ji-Min Qu, Yang Xiang, Keng Shen, Jing He Lang
BACKGROUND: Clinico-pathological characteristics and possible prognostic factors among women with epithelial ovarian carcinoma (EOC) with or without concurrent endometriosis were explored. METHOD: We retrospectively identified 304 patients with EOC treated primarily at Peking Union Medical College Hospital with median follow-up time of 60 months. RESULTS: Of 304 patients with EOC, concurrent endometriosis was identified in 69 (22.7%). The patients with concurrent endometriosis were younger and more probably post-menopausal at onset, were less likely to have abdominal distension, with significantly lower level of pre-surgery serum Ca125 and less possibility of having the history of tubal ligation...
October 3, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28884602/enhancement-of-anticancer-activity-by-silibinin-and-paclitaxel-combination-on-the-ovarian-cancer
#18
Fatima Pashaei-Asl, Roghiyeh Pashaei-Asl, Khodadad Khodadadi, Abolfazl Akbarzadeh, Esmaeil Ebrahimie, Maryam Pashaiasl
BACKGROUND: Ovarian carcinoma is the most lethal cancer among all gynaecological malignancies. One of the most chemotherapy drugs used for ovarian cancer is paclitaxel which induces apoptosis. Paclitaxel has been used for many years. Similar to the most cancers this responds to chemotherapy initially but in a long run, drug resistance happens which fails the treatment procedure. Combination of chemotherapy drugs has been suggested to deal with this issue. Silibinin, a plant extraction, has been used from ancient time in traditional medicine and identified to have powerful antioxidant activity...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28882436/antitumor-activity-and-safety-of-the-parp-inhibitor-rucaparib-in-patients-with-high-grade-ovarian-carcinoma-and-a-germline-or-somatic-brca1-or-brca2-mutation-integrated-analysis-of-data-from-study-10-and-ariel2
#19
Amit M Oza, Anna V Tinker, Ana Oaknin, Ronnie Shapira-Frommer, Iain A McNeish, Elizabeth M Swisher, Isabelle Ray-Coquard, Katherine Bell-McGuinn, Robert L Coleman, David M O'Malley, Alexandra Leary, Lee-May Chen, Diane Provencher, Ling Ma, James D Brenton, Gottfried E Konecny, Cesar M Castro, Heidi Giordano, Lara Maloney, Sandra Goble, Kevin K Lin, James Sun, Mitch Raponi, Lindsey Rolfe, Rebecca S Kristeleit
OBJECTIVE: An integrated analysis was undertaken to characterize the antitumor activity and safety profile of the oral poly(ADP-ribose) polymerase inhibitor rucaparib in patients with relapsed high-grade ovarian carcinoma (HGOC). METHODS: Eligible patients from Study 10 (NCT01482715) and ARIEL2 (NCT01891344) who received a starting dose of oral rucaparib 600mg twice daily (BID) with or without food were included in these analyses. The integrated efficacy population included patients with HGOC and a deleterious germline or somatic BRCA1 or BRCA2 (BRCA1/2) mutation who received at least two prior chemotherapies and were sensitive, resistant, or refractory to platinum-based chemotherapy...
November 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28816710/establishment-of-primary-cell-culture-from-ascitic-fluid-and-solid-tumor-obtained-from-epithelial-ovarian-carcinoma-patients
#20
Rajarshi Kar, Diwesh Chawla, Bindiya Gupta, Mohit Mehndiratta, Neelam Wadhwa, Rachna Agarwal
OBJECTIVE: Ovarian cancer is the seventh leading cause of cancer death worldwide. This is mainly due to late diagnosis and high rate of relapse and resistance following chemotherapy. In the present study, we describe simple and cost-effective method to establish primary culture from ascitic fluid and solid tumor obtained from epithelial ovarian carcinoma patient, which may provide a better tool for in vitro testing of drug sensitivity and designing individualized treatment protocol. METHODS: Complete Dulbecco modified Eagle medium (DMEM) was prepared by supplementing DMEM with 10% fetal bovine serum and antibiotics (ciprofloxacin and amphotericin B)...
November 2017: International Journal of Gynecological Cancer
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