Abstract:
OBJECTIVE:Inappropriate telomerase expression has been reported to be associated with the development and/or progression of malignancies. Therefore, the purpose of the study was to determine and evaluate the levels of telomerase activity in normal ovary, cystadenomas, low-malignant-potential tumors, and carcinomas of the ovary. METHODS:In the present study, telomerase activity was examined in frozen tissue specimens of normal ovary (n = 6), ovarian cystadenomas (n = 13), ovarian low-malignant-potential (LMP) tumors (n = 12), and ovarian invasive carcinomas (n = 81). Clinicopathological information including age at diagnosis, histological grade, FIGO stage, presence of distant metastasis at diagnosis, and residual disease was available for all patients with ovarian carcinomas (n = 81). Telomerase activity was assessed by the telomeric repeat amplification protocol (TRAP). Arbitrary values were assigned to processivity of telomerase activities based on the molecular weights of the telomeric repeat DNA ladders, and were graded as "negative," "moderate" (< or =99 bp), or "high" (>100 bp) activities. The specificity of telomerase activity was determined by the pretreatment of telomerase-positive control or tumor samples with RNase that led to the abolition of the activity. In addition, to determine the possibility of false negativity due to the presence of telomerase inhibitors, TRAP assay was performed on each of the telomerase-negative specimens by mixing them individually with the telomerase-positive control. RESULTS:Telomerase activity in the progression of ovarian carcinogenesis was evaluated. In comparison with normal ovary/cystadenoma (32%), a much higher frequency of the moderate activity was observed in LMP tumors (67%) or invasive carcinomas (57%), suggesting a close association between the latter two categories. The results reflect a subpopulation of telomerase-positive LMP tumor cells with the potential to develop invasive carcinomas. None of the specimens of the benign or LMP tumors exhibited high activity. In contrast, 18% of ovarian invasive carcinomas showed high telomerase activity (P = 0.013, Fisher exact test) and further 57%, moderate activity (75% in all). A statistically significant difference was observed in the expression of telomerase activity between normal ovary/benign cystadenomas and ovarian invasive carcinomas (P = 0.001, chi(2) test). CONCLUSIONS:The study showed a high prevalence of telomerase activity in LMP tumors or invasive carcinomas, the high levels of telomerase activity being associated exclusively with the invasive ovarian carcinomas. Therefore, the levels of processivity of telomerase activity and evidence of its statistically significant association with ovarian carcinoma suggest its role in the progression of ovarian carcinogenesis.
journal_name
Gynecol Oncoljournal_title
Gynecologic oncologyauthors
Datar RH,Naritoku WY,Li P,Tsao-Wei D,Groshen S,Taylor CR,Imam SAdoi
10.1006/gyno.1999.5506subject
Has Abstractpub_date
1999-09-01 00:00:00pages
338-45issue
3eissn
0090-8258issn
1095-6859pii
S0090-8258(99)95506-3journal_volume
74pub_type
杂志文章abstract:BACKGROUND:Hemangiomas are very rare tumors of the ovary. Here, we report a case of a mixed capillary and cavernous ovarian hemangioma and endometrial carcinoma presenting with postmenopausal bleeding, male pattern receding frontal hairline, and high serum androgen and estradiol levels. CASE:A 70-year-old White female...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2004.06.021
更新日期:2004-09-01 00:00:00
abstract:OBJECTIVE:Recurrent and advanced cervical cancers are associated with high mortality and a lack of effective treatment options, especially for women who are poor candidates for surgery or radiation therapy. The broad clinical effectiveness and low toxicity of gemcitabine in other human malignancies suggest that it migh...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/s0090-8258(03)00338-x
更新日期:2003-08-01 00:00:00
abstract:OBJECTIVE:To compare the efficacy between acupuncture and ondansetron in the prevention of delayed chemotherapy induced nausea and vomiting (CINV). METHODS:70 patients were randomized to receive either 1) acupuncture at P6 point before chemotherapy infusion or 2) ondansetron 8 mg intravenously 30 min before chemothera...
journal_title:Gynecologic oncology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ygyno.2014.10.025
更新日期:2015-01-01 00:00:00
abstract::The optimal treatment of early-stage ovarian borderline tumors is controversial. Only a few randomized trials evaluating adjuvant treatment for this disease have been published. Between 1970 and 1988 four consecutive randomized trials, including patients with ovarian borderline tumors, were conducted at the Norwegian ...
journal_title:Gynecologic oncology
pub_type: 临床试验,杂志文章,随机对照试验,评审
doi:10.1006/gyno.1993.1279
更新日期:1993-11-01 00:00:00
abstract::Forty-eight cases subjected to radioimmunoimaging (RII) by intraperitoneal injection with 131I-C0C183B2 monoclonal antibody (MAb) prepared in our laboratory were studied. Thirteen of 14 cases of proved primary ovarian carcinoma were positive. In 11 follow-up cases of ovarian carcinoma after initial surgery and chemoth...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(92)90109-v
更新日期:1992-11-01 00:00:00
abstract:OBJECTIVE:The aim of this study is to evaluate the impact of the 1999 national recommendations for ovarian cancer surgery in England to be performed by specialist surgeons in specialist centres. METHODS:A retrospective analysis of English cancer registry records, Hospital Episode Statistics (HES) data for all English ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2015.03.003
更新日期:2015-09-01 00:00:00
abstract:OBJECTIVES:The objectives of this phase II trial were to assess the activity and tolerability of the combination of bevacizumab and erlotinib in patients with recurrent ovarian, primary peritoneal or fallopian tube cancer. METHODS:This was a single arm, multicenter phase II trial with overall objective response as the...
journal_title:Gynecologic oncology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ygyno.2008.02.009
更新日期:2008-07-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine prognostic factors of metachronous Krukenberg's tumors of gastric origin, thereby helping to establish a therapeutic plan for this rare entity. METHODS:Thirty-four female patients who underwent curative resection of gastric carcinoma from 1987 through 1996 and subsequen...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.2001.6210
更新日期:2001-07-01 00:00:00
abstract:OBJECTIVES:The PI3K/AKT/mTOR pathway is frequently overactivated in endometrial cancer (EC). We assessed the efficacy of ABTL0812, a novel first-in-class molecule presenting a unique mechanism of action inhibiting this pathway. METHODS:We investigated the effects of ABTL0812 on proliferation, cell death and modulation...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2019.03.002
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVE:The aim of this trial was to investigate the efficacy and toxicity of a relative high-dose of topotecan combined with carboplatin in recurrent or persistent epithelial ovarian cancer (EOC). METHODS:Patients participating in this phase II trial received topotecan at a dose of 1.0 mg/m(2)/day intravenously (IV...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2009.04.016
更新日期:2009-08-01 00:00:00
abstract::Fifty patients with cervical cancer were treated with radical hysterectomy and lymphadenectomy followed by postoperative radiation therapy for high risk factors (nodal metastases, lymphvascular space invasion, close or involved margins) at the University of Alabama at Birmingham Medical Center from 1969 to 1984. Fifte...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(89)90627-6
更新日期:1989-03-01 00:00:00
abstract:BACKGROUND:Primary non-gestational choriocarcinoma of the female genital tract has been described in the ovaries and is very unusual in other genital sites. CASE:Primary non-gestational uterine cervical choriocarcinoma was diagnosed in a patient, 32, single, without previous sexual contact nor antecedent pregnancy, ad...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2005.03.045
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:The identification and investigation of cancer-associated long non-coding RNAs are important for understanding the molecular biology of cancer. The aim of the present study was to examine the expression pattern of lncRNA XLOC_010588 in cervical cancer and to evaluate its biological role and clinical significa...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2014.03.555
更新日期:2014-06-01 00:00:00
abstract::Forty-six LLETZ cone biopsies were performed at the Medical College of Georgia from January 1991 through December 1991. All LLETZ cones were performed for diagnostic reasons following colposcopic biopsies. The majority of procedures were done by residents in obstetrics and gynecology with direct faculty supervision. A...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1994.1032
更新日期:1994-02-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to investigate the role of 2-[fluorine-18]-fluoro-2-deoxy-d-glucose positron emission tomography (FDG PET) in the diagnosis of recurrent ovarian cancer. METHODS:One hundred six FDG PET scans performed in 54 patients in the follow-up after cytoreductive surgery and chemotherapy of ova...
journal_title:Gynecologic oncology
pub_type: 临床试验,杂志文章
doi:10.1006/gyno.2001.6386
更新日期:2001-11-01 00:00:00
abstract:OBJECTIVES:The goal of this work was to test the hypotheses that S-phase fraction (SPF) by DNA labeling index (SPF-LI) would predict the course of the disease for ovarian/peritoneal carcinomas and that SPF-LI would correlate better with pathologic classification and outcome than SPF by DNA flow cytometry (SPF-F). METH...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.2001.6184
更新日期:2001-06-01 00:00:00
abstract::OBJECTIVE. Serous tubal intraepithelial carcinoma (STIC) is currently considered the precursor lesion of pelvic (i.e., ovarian or peritoneal) high-grade serous carcinoma. The incidence of STIC has been reported to range from 0.6% to 7% in BRCA mutations carriers. However, the clinical outcome of patients with 'isolate...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2015.09.018
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:High grade undifferentiated uterine sarcomas (HGUS) are rare, aggressive malignancies. Data regarding management are limited. We aimed to describe disease stage, response to treatment, and survival outcomes among patients with HGUS at our institution. METHODS:We identified all patients with HGUS who receive...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2012.06.030
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVE:The host-tumor interactions and tumor stroma may participate in the regulation of invasive behavior of tumor cells. In order to better understand the human ovarian cancer invasion we explored the possibility that normal fibroblasts could participate in the control of the spread of human ovarian cancer. RESUL...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1997.4808
更新日期:1997-10-01 00:00:00
abstract::An epidemiologic study of multiple primary malignant neoplasms in endometrial cancer patients in Israel is presented. During the 7-year period of the study, 104 patients (10.3%) out of 1007 patients diagnosed as having endometrial cancer had another primary cancer. There was a significant difference in the incidence o...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(85)90005-8
更新日期:1985-09-01 00:00:00
abstract:OBJECTIVES:To identify angiogenic biomarkers associated with tumor angiogenesis and clinical outcome in high-grade serous ovarian cancer (HGSC). METHODS:51 HGSC samples were analyzed using Affymetrix HG-U133A microarray. Microvessel density (MVD) counts were determined using CD31 and CD105. Associations between mRNA e...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2015.08.001
更新日期:2015-10-01 00:00:00
abstract::From November 1983 to October 1992, 22 patients with invasive cervical cancer stage IB through stage IIIB with metastasis to para-aortic nodes were entered in this study. Five patients were excluded. Of 17 remaining evaluable patients, 5 (29%) were stage IB, 6 (35%) were stage IIB, and 6 (35%) were stage IIIB. Four (2...
journal_title:Gynecologic oncology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1006/gyno.1994.1057
更新日期:1994-03-01 00:00:00
abstract:PURPOSE:Racial genetic admixture (RGA), a measure to account for ancestral genetic background that correlates with individual's racial classification, could provide insights on causation of racial disparity in endometrial cancer (EC). Our objective is to evaluate the association of RGA with EC outcomes. METHODS:EC pat...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2015.11.018
更新日期:2016-02-01 00:00:00
abstract:BACKGROUND:To compare the efficacy of chemotherapy (C) combined with bevacizumab (Bev) versus Bev alone in recurrent, heavily pretreated epithelial ovarian cancer (EOC). METHODS:A multicenter analysis of patients treated from 2004 to 2011 was performed. Demographic, treatment, response, and adverse event information w...
journal_title:Gynecologic oncology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ygyno.2015.06.041
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:Human leukocyte antigens (HLA) play an important role in presenting virus antigens to immune cells that are responsible for the clearance of virus-infected cells and tumor cells. Herein, we evaluated whether genetic variants of HLA-DP and HLA-DQ are associated with cervical cancer risk. METHODS:We genotyped ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2013.02.017
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:This study aims to identify favorable preoperative characteristics and examine the impact of secondary cytoreductive surgery on survival for patients with recurrent epithelial ovarian carcinoma. METHODS:Patients who underwent cytoreductive surgery for recurrent epithelial ovarian cancer were identified in ou...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2007.04.006
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Metformin has been associated with reduced cancer risk. The mechanisms underlying this cancer protective effect remain unknown. METHODS:"Window of opportunity" study of metformin in women with operable endometrial cancer (EC). Eleven newly diagnosed, untreated, non-diabetic patients with EC received metform...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2014.06.014
更新日期:2014-09-01 00:00:00
abstract::The purpose of this study was to determine the influence of tumor grade, distribution, and extent of carcinomatosis in minimal residual epithelial ovarian cancer after primary optimal cytoreductive surgery. Between 1978 and 1990, 112 patients with stage III epithelial ovarian cancer underwent primary cytoreductive sur...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1994.1257
更新日期:1994-10-01 00:00:00
abstract::The Precision Medicine Initiative is a National Cancer Institute (NCI) driven interdisciplinary collaborative effort to test the feasibility of trials incorporating genomic profiling when choosing patient therapies. The goal of the initiative is to generate the scientific evidence needed to move the concept of precisi...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2018.01.008
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:To evaluate safety, tolerability, and antitumor activity of pembrolizumab monotherapy in patients with programmed death ligand 1 (PD-L1)-expressing advanced ovarian cancer enrolled in the multicohort, phase Ib KEYNOTE-028 trial. METHODS:Key inclusion criteria were age ≥18 years; advanced ovarian epithelial, ...
journal_title:Gynecologic oncology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ygyno.2018.11.017
更新日期:2019-02-01 00:00:00