Abstract:
BACKGROUND:High fatality in ovarian cancer is attributed to metastasis, propagated by the release of multi-cellular aggregates/spheroids into the peritoneal cavity and their subsequent mesothelial invasion of peritoneal organs. Spheroids are therefore a common and clinically relevant in vitro model for ovarian cancer research. Spheroids in patients vary significantly in size and shape and display enhanced resistance to anti-cancer drugs compared to monolayers. However, there is no consensus on how spheroid size and shape affect drug resistance. Moreover, existing data regarding the influence of epithelial-to-mesenchymal transition (EMT) profile on spheroid shape and migration is inconclusive. METHODS:We formed spheroids with OVCAR-3 and OVCAR-8 cells, chosen for their established genetic similarity to the patient tumor samples. We monitored their morphology using confocal microscope with dipping objective and fluorescent microscope. We characterized important EMT biomarkers; E-cadherin, Vimentin and Slug through western blotting in monolayers and spheroids. We treated these spheroids with Taxol and Cisplatin and investigated their migratory profile based on their morphology. RESULTS:We report two distinct multicellular structures: loose aggregates (OVCAR-3) and compact spheroids (OVCAR-8). We attribute these different morphologies to the expression of the EMT biomarkers, and their changes upon spheroid formation. Importantly, we did not observe a difference in resistance to the anti-cancer drugs as a function of spheroid size and shape. However, migration capacity of compact spheroid (OVCAR-8) was 15-fold higher compared to that of loose aggregates (OVCAR-3). CONCLUSIONS:These results highlight the importance of spheroid size and shape on anti-cancer drug resistance and migration profiles. The results of this study can, therefore, help to elucidate general rules for ovarian cancer studies based on 3D samples.
journal_name
Gynecol Oncoljournal_title
Gynecologic oncologyauthors
Gunay G,Kirit HA,Kamatar A,Baghdasaryan O,Hamsici S,Acar Hdoi
10.1016/j.ygyno.2020.09.002subject
Has Abstractpub_date
2020-11-01 00:00:00pages
563-572issue
2eissn
0090-8258issn
1095-6859pii
S0090-8258(20)33857-9journal_volume
159pub_type
杂志文章abstract:OBJECTIVE:To evaluate the utility of combined positron emission tomography/computed tomography (PET/CT) for detecting recurrent epithelial ovarian cancer limited to retroperitoneal adenopathy. METHODS:Fourteen patients (median age = 53 years) with rising serum CA125 levels, and negative or equivocal conventional CT im...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2005.06.019
更新日期:2005-11-01 00:00:00
abstract:OBJECTIVE:Management of locally advanced cervical cancer consists primarily of combination external and internal radiation. In order to investigate the impact of intracavitary brachytherapy versus interstitial brachytherapy on local tumor control, survival, and complications, we retrospectively reviewed the concomitant...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1997.4877
更新日期:1997-12-01 00:00:00
abstract::Arterial thromboembolic disease almost always occurs in the setting of significant cardiovascular disease. Fewer than 10% of patients have no known etiology and only rarely is malignancy implicated. A review of the literature revealed only one prior report associated with a gynecologic malignancy, and this occurred in...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1006/gyno.1996.4533
更新日期:1997-01-01 00:00:00
abstract:OBJECTIVE:Microsatellite instability (MSI) is a frequent genetic event in the D-loop region (which controls mitochondrial DNA (mtDNA) replication) of mitochondrial genome of endometrial cancer. We therefore investigated the relationship between mtMSI and mtDNA content in endometrial cancer. METHODS:Tumor tissues from ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2005.04.015
更新日期:2005-07-01 00:00:00
abstract::Verrucous carcinoma (VC) of the female genital tract is a rare lesion, primarily affecting postmenopausal women. A case of VC of the vulva is reported, bringing the total number of VC of the female genital tract to 89. VC is a slowly growing, locally "pushing" tumor with a rather benign histologic appearance, and the ...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/0090-8258(88)90258-2
更新日期:1988-07-01 00:00:00
abstract::Primary lymphoma of the uterine corpus (PLUC) is an extremely rare neoplasm. We report a case of PLUC in a 78-year-old woman with vaginal bleeding without hepatosplenomegaly, adenopathies, or bone marrow infiltration, classified as stage I. A diagnosis of diffuse large B-cell lymphoma was made in endometrial curettage...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1997.4679
更新日期:1997-06-01 00:00:00
abstract:OBJECTIVE:Protease-activated receptor-2 (PAR-2) is a G-protein-coupled receptor that is cleaved and activated by trypsin and tryptase. There is evidence that PAR-2 contributes to tumor progression in stomach, colon, pancreas, prostate and breast cancer patients. However, the role of PAR-2 in cervical cancer is still un...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2007.08.083
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:Topotecan (1.5 mg/m(2)) administered daily for 5 consecutive days of a 21-day cycle is an established chemotherapeutic regimen in recurrent ovarian cancer. However, noncumulative myelosuppression has limited its use by many clinicians. We sought to determine whether a lower dose of topotecan could provide com...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.2001.6365
更新日期:2001-11-01 00:00:00
abstract::Tissue samples from 20 patients with nonepithelial ovarian malignancies were assayed for cytosol estrogen (ERc) and in selected samples progestin-receptor (PRc) proteins. The nine germ cell malignancies assayed were low in ERc. One recurrent granulosa cell tumor had an ERc concentration of 36 fmole/mg cytosol protein ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(83)90048-3
更新日期:1983-06-01 00:00:00
abstract:BACKGROUND:Malignant germ cell tumors of the ovary are often curative after conservative surgery and adjuvant chemotherapy. Persistent tumors despite normalization of serum tumor markers may represent retroconversion to benign masses, but this is rare in ovarian tumors without teratoma elements. The management in such ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.2001.6541
更新日期:2002-03-01 00:00:00
abstract:OBJECTIVE:Expression of the immunoreactive protein of matrix metalloproteinase 2 (MMP-2) was studied in cervical tumors representing various stages of cell atypia and differentiation. In this study, we evaluated whether the expression of MMP-2 is an early or late event in the process of dedifferentiation and cancer pro...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1998.5157
更新日期:1999-03-01 00:00:00
abstract::To determine the morbidity associated with delivery of intraperitoneal chemotherapy via subcutaneous semipermanent infusion catheters, we analyzed the data on 227 patients treated from April 1985 through December 1989. A total of 249 catheters were inserted and used to administer chemotherapy in these patients. There ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(91)90266-8
更新日期:1991-05-01 00:00:00
abstract::Thirty-two patients with Stage III or IV epithelial ovarian cancer and residual tumor volumes in excess of 2 cm in diameter after initial debulking were treated with platinum and cyclophosphamide chemotherapy. Twenty-seven patients (84%) received at least six courses of chemotherapy. Six patients developed grade 3 or ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(87)90296-4
更新日期:1987-06-01 00:00:00
abstract:OBJECTIVE:Implicit prejudice and stereotyping may exist in health care providers automatically without their awareness. These biases can correlate with outcomes that are consequential for the patient. This study examined gynecologic oncology care providers' implicit prejudice and stereotyping toward cervical cancer. M...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2019.01.013
更新日期:2019-04-01 00:00:00
abstract::Cyclin D1 is a critical gene controlling the G1 phase progression through the cell cycle. Alterations of cyclin D1 have been demonstrated in a variety of cancer types. We recently reported that increased cyclin D1 expression is associated with malignancy also in ovarian tumors. Three human ovarian cancer cell lines (S...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1998.5062
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:Use of in vitro chemoresponse assays for informing effective treatment selection is a compelling clinical question and a topic of debate among oncologists. A prospective study was conducted evaluating the use of a chemoresponse assay in recurrent ovarian cancer patients. METHODS:Women with persistent or recu...
journal_title:Gynecologic oncology
pub_type: 临床试验,杂志文章
doi:10.1016/j.ygyno.2013.08.009
更新日期:2013-11-01 00:00:00
abstract::Combination chemotherapy consisting of bleomycin, vincristine, mitomycin C, and cisplatin (BOMP) was first applied to an inoperable case (57-year-old) with FIGO stage IV (T3N3 + M1B) squamous cell carcinoma of the vulva. After three courses of BOMP therapy, the patient achieved a complete response with few toxic effec...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(90)90156-f
更新日期:1990-03-01 00:00:00
abstract:OBJECTIVE:Perform a systematic review to determine the test performance of HPV mRNA testing compared to DNA testing using CIN2+ as the target condition. METHODS:We searched bibliographic databases (MEDLINE, EMBASE and Cochrane Library) from January 1996 through August 2010 using a predefined search strategy. The refer...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2010.11.013
更新日期:2011-03-01 00:00:00
abstract:PURPOSE:There is controversy regarding the pattern of lymphatic spread in unilateral stage I invasive ovarian carcinomas. The purpose of this study is to describe the incidence and distribution of lymph node (LN) metastases in ovarian carcinomas clinically confined to one ovary. METHODS:Ninety-six patients with diseas...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.2000.6027
更新日期:2001-01-01 00:00:00
abstract::Absorbable synthetic mesh (910-polyglactin) was used to create an intestinal sling in six patients undergoing surgical staging of pelvic malignancies prior to radiation therapy. All patients had effective compartmentalization of small intestine out of the pelvis which persisted throughout the duration of radiation the...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(88)90227-2
更新日期:1988-03-01 00:00:00
abstract::In 74 patients with advanced ovarian cancer, the value of DNA flow cytometry and morphometry was evaluated and compared with histological grading and clinical outcome. By means of both DNA flow cytometry and morphometry a clear distinction was found between a favorable group of 15 patients, with a median survival of m...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(88)90212-0
更新日期:1988-02-01 00:00:00
abstract::Three cases of papillary villoglandular carcinoma of the cervix are presented. Each patient was multiparous and presented with abnormal vaginal bleeding. The mean age at presentation was 35 years (range 28-42 years). All patients were staged as FIGO IB and underwent radical Wertheim hysterectomy and bilateral pelvic l...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(90)90437-p
更新日期:1990-11-01 00:00:00
abstract:OBJECTIVES:We sought to determine a baseline and five-year follow up sexual function score in women undergoing hysterectomy for endometrial cancer. METHODS:A cross-section of endometrial cancer patients receiving care from 2006 to 2010 was identified. Patients were surveyed during academic year 2011 using the Pelvic O...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2018.10.025
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:We assessed the efficacy and toxicity of once-weekly topotecan (Hycamtin; GlaxoSmithKline) for relapsed or persistent epithelial ovarian cancer (EOC) and primary peritoneal carcinoma (PPC). METHODS:Patients with recurrent or persistent EOC and PPC previously treated with > or = 1 course of platinum-based ch...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2006.11.017
更新日期:2007-04-01 00:00:00
abstract:OBJECTIVE:Reduced Selenium-Binding Protein 1 (SELENBP1) expression was recently shown in multiple cancers. There is little information on the expression and function of SELENBP1 in cancer progression. In order to develop a better understanding of the role of SELENBP1 in ovarian cancer, our objective was to determine if...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2007.12.030
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine the risk of malignancy in cystic ovarian tumors < 10 cm in diameter in asymptomatic postmenopausal women or women >or =50 years of age. METHODS:All cystic ovarian tumors detected by transvaginal sonography screening in asymptomatic postmenopausal women or women > or =50...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1998.4965
更新日期:1998-04-01 00:00:00
abstract:BACKGROUND:Although overall cervical cancer incidence rates have decreased in both black and white women in the U.S. since the mid 1950s due to widespread screening, rates continue to be higher among blacks than among whites. However, whether this pattern differs by age is unknown. METHODS:Cervical cancer cases (1975-...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2012.08.021
更新日期:2012-12-01 00:00:00
abstract::Choriocarcinoma cells grown in the presence of methotrexate (MTX) developed resistance in two ways. HCCM-derived sublines (relatively high MTX resistance) produced enhanced levels of dihydrofolate reductase (DHFR) and had impaired transport of MTX. Altered transport was the primary determinant of response in CC1-deriv...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(89)90095-4
更新日期:1989-07-01 00:00:00
abstract:OBJECTIVE:To estimate the likelihood of occult cancer diagnosis at prophylactic oophorectomy in BRCA1 and BRCA2 carriers in different age groups and to determine the histopathology of these lesions. METHODS:We describe a series of 159 female BRCA1 or BRCA2 carriers who underwent prophylactic oophorectomy at the Univer...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2005.06.065
更新日期:2006-01-01 00:00:00
abstract::Paraneoplastic cerebellar degeneration (PCD) is a rare nonmetastatic neurological complication in cancer patients. Anti-Yo is one of the anti-onconeural antibodies found in PCD patients. It is believed that anti-Yo occurs almost always in women and is most likely associated with gynecologic or breast cancers, although...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1006/gyno.1999.5553
更新日期:1999-10-01 00:00:00