Abstract:
OBJECTIVE:To examine the DNA methyltransferase (DNMT) mRNA and protein levels in endometrioid and serous cancers and to study the relationship between DNA methyltransferase expression and endometrial cancer development. METHODS:Normal endometrium, Grade I and Grade III endometrioid carcinoma tissues and cell lines, as well as serous cancer tissues, were analyzed for DNMT expression. Real-time PCR and Western blot techniques were employed to measure the mRNA and protein levels of the four DNA methyltransferases, DNMT1, DNMT2, DNMT3A, and DNMT3B. Immunohistochemistry was performed to detect alterations in DNMT nuclear localization and spatial organization patterns. RESULTS:While DNMT2 and DNMT3A expression appear to be normal, two- to fourfold increase in DNMT1 and DNMT3B were found in both Grade I and Grade III endometrioid cancers. In addition, the poorly differentiated cell lines expressed relatively higher DNMT levels than well-differentiated cells. In contrast to endometrioid carcinomas, serous cancers expressed substantially lower levels of DNMT1 and DNMT3B than normal controls, with four- and twofold reduction observed in DNMT1 and DNMT3B mRNA levels, respectively. Western blot analysis confirmed opposite expression patterns of DNMT1 and DNMT3B protein in endometrioid and serous cancers. Immunohistochemistry showed normal nuclear localization of DNMT1 and DNMT3B in Type I and Type II cancer specimens as well as cell cultures. CONCLUSION:Two opposite DNMT expression patterns were identified in endometrioid and serous cancers. The concerted upregulation in maintenance and de novo DNA methyltransferases in endometrioid carcinomas is consistent with a tendency for gene-specific hypermethylation observed in this histologic subtype, and may be implicated in tumor suppressor silencing. In contrast, the downregulation of maintenance and de novo DNA methyltransferases in serous cancers suggests that these tumors may contain hypomethylated genomic DNA, which has been associated with a higher mutation rate and is consistent with the known pathogenesis of serous-specific phenotypes. Taken together, the data suggest that divergent DNA methylation pathways may be implicated in the development of Type I and Type II endometrial cancers.
journal_name
Gynecol Oncoljournal_title
Gynecologic oncologyauthors
Xiong Y,Dowdy SC,Xue A,Shujuan J,Eberhardt NL,Podratz KC,Jiang SWdoi
10.1016/j.ygyno.2004.11.047subject
Has Abstractpub_date
2005-03-01 00:00:00pages
601-9issue
3eissn
0090-8258issn
1095-6859pii
S0090-8258(04)00967-9journal_volume
96pub_type
杂志文章abstract:BACKGROUND:Leiomyosarcoma (LMS) of the uterus is a rare neoplasm with an aggressive growth pattern. Although the majority of uterine LMS is diagnosed with disease confined to the uterus, the rate of recurrent disease is high. The most common sites of recurrent disease are lung, liver, and peritoneal cavity. The rate of...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2003.10.043
更新日期:2004-02-01 00:00:00
abstract:OBJECTIVE:The aim of this report is to describe the potential clinical utility of tracer [F-18]-Fluorodeoxyglucose (FDG) uptake, quantitated as a standardized uptake value (SUV) by positron emission tomography (PET), to evaluate treatment response to neoadjuvant chemotherapy (NAC) in advanced uterine cervical cancer. ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2004.08.037
更新日期:2004-12-01 00:00:00
abstract:OBJECTIVE:Australia's HPV vaccination and HPV-based cervical screening programs are changing the landscape in cervical cancer prevention. We aim to identify areas which can make the biggest further impact on cervical cancer burden. This protocol describes the first stage of a program of work called Pathways-Cervix that...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2018.12.019
更新日期:2019-03-01 00:00:00
abstract::Three hundred and sixty-two cases of primary vaginal carcinoma were treated at the Irradiation Department of the University Clinic for Obstetrics and Gynecology, Vienna, from 1950 to 1977. As the method of choice an individually dosed, fractioned, and protracted radium-telecobalt therapy was employed. Comparing the la...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(85)90236-7
更新日期:1985-05-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to determine the efficacy and hematologic toxicity of salvage chemotherapy in patients with recurrent ovarian cancer following high-dose chemotherapy and peripheral blood stem cell transplantation (PBSCT). METHODS:A retrospective analysis of 19 Massachusetts General Hospital c...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1999.5710
更新日期:2000-04-01 00:00:00
abstract::The standard management of advanced-stage ovarian cancer has been a subject of debate, and much controversy remains as to whether patients should have primary cytoreductive surgery followed by chemotherapy or neoadjuvant chemotherapy followed by interval cytoreductive surgery. In addition, there is increasing evidence...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2015.03.049
更新日期:2015-06-01 00:00:00
abstract:OBJECTIVE:Different Human Papilloma Virus (HPV) tests are currently used. An integrated comparison of the Amplicor, Cobas4800, PreTect HPV-Proofer and APTIMA HPV tests has not been done. METHODS:We compared the high-risk HPV detection power of these HPV tests in 528 consecutive population-based follow-up Liquid-Based ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2011.07.024
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVE:The study aims at identifying novel markers for circulating tumor cells (CTCs) in patients with epithelial ovarian cancer (EOC), and at evaluating their impact on outcome. METHODS:Microarray analysis comparing matched EOC tissues and peripheral blood leucocytes (N=35) was performed to identify novel CTC mark...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2012.09.021
更新日期:2013-01-01 00:00:00
abstract:UNLABELLED:Despite the publication of two dozen observational epidemiological studies investigating the association between recreational physical activity (RPA) and epithelial ovarian cancer (EOC) risk and survival over the past two decades, taken collectively, data from retrospective and prospective studies are mixed ...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2015.03.016
更新日期:2015-06-01 00:00:00
abstract::A case of Stage IV endometrial squamous cell carcinoma occurring 8 years after a low anterior resection and whole pelvic radiation therapy for a Dukes D colon carcinoma is presented. Koilocytosis was present in the tumor. There was no evidence of human papillomavirus antigen or DNA in the tumor. The patient was treate...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1995.1167
更新日期:1995-06-01 00:00:00
abstract:OBJECTIVES:The objectives of this study were twofold: to prospectively assess whether expressed intention to undergo prophylactic oophorectomy translated into uptake and to evaluate the psychological impact of the procedure in a sample of unaffected women with a strong family history of breast/ovarian cancer. METHODS:...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.2002.6737
更新日期:2002-08-01 00:00:00
abstract::Favorable responses to hexamethylmelamine (HMM) have been documented in untreated as well as in alkylating agent-resistant ovarian epithelial adenocarcinoma (OvCa). Platinum-based combination therapy for OvCa has been used since 1976. Eighteen patients with OvCa were treated with HMM as salvage therapy between Februar...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(84)90076-3
更新日期:1984-02-01 00:00:00
abstract::A 65-year-old woman had a total abdominal hysterectomy and bilateral salpingo-oophorectomy through a Pfannenstiel incision for a Stage Ib, Grade 2 endometrial adenocarcinoma with extension to the middle third of the myometrium. No adjuvant treatment was given. She presented 7 years later with a large suprapubic mass a...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1994.1147
更新日期:1994-06-01 00:00:00
abstract:OBJECTIVE:To examine the influence of diabetes and metformin therapy on overall survival (OS) and progression-free survival (PFS) in patients with endometrial cancer (EC) by using propensity score (PS) matching to account for confounding factors. METHODS:We retrospectively identified consecutive patients with stage I-...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2015.11.019
更新日期:2016-02-01 00:00:00
abstract::Angiogenesis is a proven clinical target for the treatment of advanced epithelial ovarian cancer. Vascular endothelial growth factor receptor tyrosine kinase inhibitors (VEGFR-TKIs) offer patients potential new treatment regimens as they can be given as monotherapy, in combination with poly(ADP-ribose) polymerase (PAR...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2018.03.058
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:To compare the incidence of postoperative complications and opioid pain medication usage in gynecologic oncology patients who did and did not receive an epidural prior to undergoing exploratory laparotomy. METHODS:Retrospective cohort study of all patients undergoing exploratory laparotomy with the gynecolog...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2019.02.017
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVES:A phase II clinical trial compared docetaxel in combination with carboplatin to sequential single agent docetaxel followed by carboplatin for treatment of recurrent platinum-sensitive ovarian, peritoneal, or tubal cancer. This manuscript reports prospectively collected health-related quality of life (HRQL). ...
journal_title:Gynecologic oncology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.ygyno.2011.08.015
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:Estimate the prevalence of cardiovascular disease risk factors and endpoints in women with BRCA mutations. METHODS:Women, age 40 and older, with BRCA mutations identified in Kaiser Permanente Northern California completed a questionnaire and underwent a lipid and fasting glucose panel. Bivariable analysis of...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2018.10.010
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:Most guidelines advise no adjuvant radiotherapy in vulvar squamous cell carcinoma and a single occult intracapsular lymph node metastasis. However, several recent studies have questioned the validity of this recommendation. The aim of this study was to analyze the groin recurrence rate in patients with a sing...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2020.10.008
更新日期:2021-01-01 00:00:00
abstract:BACKGROUND:Nephrotic syndrome (NS) is rarely associated with ovarian tumor. Only five cases of NS with pathologic diagnosis have been reported in patients with ovarian tumors. However, the association between minimal change disease (MCD) and ovarian tumor has not been previously reported. CASE:A 55-year-old woman pres...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2004.02.022
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine the utility of DNA flow cytometry as a prognostic indicator for risk of recurrence and overall survival in patients with early stage adenocarcinomas of the uterine cervix. METHODS:DNA flow cytometry was performed to determine ploidy, DNA index, and proliferative index i...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1999.5573
更新日期:1999-11-01 00:00:00
abstract:OBJECTIVES:The goal of this case review was to evaluate the influence of complete surgical versus clinical staging, including the impact of ovarian preservation, on the outcome of young patients with endometrial carcinoma. METHODS:A retrospective chart review was performed on all patients with endometrial cancer diagn...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2009.03.032
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVE:Mismatch repair (MMR) deficiency and Bethesda panel microsatellite instability (MSI) are increasingly analyzed to identify tumors that might benefit from immune checkpoint inhibitors, but tumor heterogeneity is a potential obstacle for such analyses. In ovarian cancer, data on intratumoral heterogeneity of MM...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2019.12.031
更新日期:2020-03-01 00:00:00
abstract::Breast cancer is the leading cause of cancer death in women. Ovarian cancer, although less frequent, is detected very late, and survival is correlated to early detection. Therefore, better methods for early detection would help to increase the number of survivors. The incidence of young women diagnosed with breast can...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2009.10.079
更新日期:2010-05-01 00:00:00
abstract:OBJECTIVES:Data are lacking on how women view alternative approaches to surveillance for cervical cancer after treatment of high-grade cervical intraepithelial neoplasia. We measured and compared patient preferences (utilities) for scenarios with varying surveillance strategies and outcomes to inform guidelines and cos...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2010.05.002
更新日期:2010-08-01 00:00:00
abstract:PURPOSE:This report describes the strength and significance of the association between antecedent and mediating variables across four categories of quality of life (QOL) outcomes in 132 disease free women with ovarian germ cell survivors. METHODS:Survivors (n=132) participated in a mailed questionnaire and computer-as...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2007.01.042
更新日期:2007-06-01 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:Carcinosarcoma (CS) of the uterus or ovary is a rare, biphasic tumor comprising epithelial and mesenchymal elements, and exhibits more aggressive clinical features than its carcinoma counterpart. Four molecular subtypes of CS were recently established based on genomic aberration profiles (POLE, MSI, CNH, and ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2020.11.030
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVE:Although the relationship between human papilloma virus (HPV) and cervical cancer is well established, the prognostic value of HPV status has not been determined, largely because previous studies have yielded conflicting results. This study aimed to investigate the prognostic value of pre-treatment HPV DNA fo...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2017.11.003
更新日期:2018-01-01 00:00:00
abstract:OBJECTIVE:MicroRNA (miRNA) plays an essential role in the progression of a variety of cancers, but its role in cervical cancer progression is not well defined. We aimed to test whether special miRNAs and their target mRNAs contribute to cervical cancer progression. METHODS:The expression profiles of 1145 microRNAs in ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2010.09.009
更新日期:2011-01-01 00:00:00