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-derived sublines (low MTX resistance). Since the selection procedures used were identical, it was assumed that altered MTX transport was insufficient to account entirely for the various degrees of resistance. An increased level of DHFR activity was necessary for the development of high MTX resistance. The overproduction of DHFR was the consequence of amplification of the DHFR gene sequence. The incidence of double minutes (DMs) in metaphase paralleled the degree of resistance. However, DMs were also present in cells not showing DHFR gene amplification. Mechanisms other than DHFR gene multiplication were responsible for the de novo synthesis of DMs.
journal_name
Gynecol Oncoljournal_title
Gynecologic oncologyauthors
Sakai K,Wake N,Fujino T,Yasuda T,Kato H,Fujimoto S,Fujinaga Kdoi
10.1016/0090-8258(89)90095-4subject
Has Abstractpub_date
1989-07-01 00:00:00pages
7-11issue
1eissn
0090-8258issn
1095-6859journal_volume
34pub_type
杂志文章abstract::Over a 20-year period, 34 patients with FIGO stage II ovarian carcinoma were treated with postoperative pelvic irradiation at the University of Michigan. Complications of radiation treatment were minimal. The overall actuarial disease-free 5-year survival was 53%. This was not significantly different for substages IIA...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(88)90142-4
更新日期:1988-01-01 00:00:00
abstract::Two cases with squamous cell carcinoma of the cervix stage IIB with primary tumor mass about 2 X 2 X 2 cm were treated with primary chemotherapy of cis-platinum, 20 micrograms/m2 body surface intravenously daily for 5 consecutive days. Papanicolaou smear turned negative after two courses of chemotherapy in both cases....
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(85)90008-3
更新日期:1985-09-01 00:00:00
abstract:OBJECTIVE:To determine if the timing of normalization of CA-125 levels during primary chemotherapy for epithelial ovarian cancer (EOC) could predict survival. METHODS:Patients who reached a complete clinical response for EOC with primary taxane/platinum-based chemotherapy were eligible. Patient demographics, chemother...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2009.04.019
更新日期:2009-08-01 00:00:00
abstract:OBJECTIVES:To analyze the sites of relapse and overall survival in women with neuroendocrine marker-positive small cell carcinoma of the cervix. METHODS:The records of all women who had their initial treatment for cervical cancer at The University of Texas M.D. Anderson Cancer Center between 1980 and 2000 were reviewe...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2003.12.027
更新日期:2004-04-01 00:00:00
abstract:BACKGROUND:The combination ascites, pleural effusion, and elevated CA 125 are usually associated with a malignancy. CASE:A 38-year-old SLE patient consulted her physician for shortness of breath. On clinical examination, she had a tender abdomen and reduced breathing sounds. X-ray and computed tomography of the chest ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2004.12.022
更新日期:2005-04-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of interleukin-7 (IL-7) gene transfection into an established ovarian carcinoma cell line (SKOV3) in vitro and evaluate the tumorigenicity of SKOV3-IL-7 in severe combined immunodeficient (SCID) mice. METHODS:IL-7 gene was transfected into SKOV3 cells by liposome. IL-7 mRNA and prot...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2003.10.036
更新日期:2004-02-01 00:00:00
abstract:BACKGROUND:Post-irradiation breast sarcoma is a rare and highly aggressive tumor, associated with poor prognosis. However, the mean latent periods reported for postradiation sarcomas after treatment of breast cancer ranges from 5 to 10 years. CASE:We present a rare case of fibrosarcoma of the axilla, diagnosed 23 mont...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2006.07.014
更新日期:2006-12-01 00:00:00
abstract::Twenty-six drug-resistant choriocarcinoma patients were treated with a PEBA regimen (cisplatin, etoposide, bleomycin, and adriamycin), supplemented by radiotherapy or surgery, from January 1988 to June 1992. A total of 80.8% of the patients had received at least four drugs, and 69.2% had received six or more cycles of...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1006/gyno.1995.1037
更新日期:1995-02-01 00:00:00
abstract:OBJECTIVE:To identify molecular prognosticators and therapeutic targets for high-grade serous epithelial ovarian cancers (EOCs) using genetic analyses driven by biologic features of EOC pathogenesis. METHODS:Ovarian tissue samples (n = 172; 122 serous EOCs, 30 other EOCs, 20 normal/benign) collected prospectively from...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2013.12.021
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVE:Mesenchymal (MES) subtype of high-grade serous ovarian cancer (HGSOC) is associated with worse outcomes including survival and resectability compared with other molecular subtypes. Molecular subtypes have historically been derived from 'tumor', consisting of both cancer and stromal cells. We sought to determi...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2018.11.014
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVES:Diagnosis and treatment for a life threatening illness such as cancer are known to be psychologically impactful. However, little is known about the influence that non-cancer life stressors have on the quality of life (QOL) of ovarian cancer patients. The goal of the present study was to examine associations ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2013.09.025
更新日期:2013-12-01 00:00:00
abstract:OBJECTIVE:Recent randomized controlled data suggest that neoadjuvant chemotherapy (NACT) with interval debulking (ID) may produce similar overall survival and progression free survival compared to standard primary cytoreduction followed by chemotherapy. The object of our study was to assess current patterns of care amo...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2010.06.021
更新日期:2010-10-01 00:00:00
abstract::CA125 and CA19-9 levels were serially evaluated in blood samples from 21 patients during and after integrated surgical and chemotherapeutic treatment for ovarian carcinoma. Serial measurement of CA125 and CA19-9 correlated with clinical course of disease in 89.7 and 72.7% of instances, respectively. The decrease of se...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(87)90173-9
更新日期:1987-11-01 00:00:00
abstract:OBJECTIVE:Despite the fact that endometrial cancer commonly occurs in elderly women, little is known about the outcome of the oldest old, those > 80 years of age. We examined the patterns of care and outcome of the oldest old women with endometrial cancer. METHODS:An analysis of women > 65 years of age with endometrio...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2011.02.040
更新日期:2011-07-01 00:00:00
abstract::Lynch syndrome II was diagnosed when two sisters manifested early-onset synchronous carcinomas of the ovary and endometrium and a third sister was found to have Duke's A carcinoma of the cecum. A detailed cancer family history indicated paternal transmission of the deleterious genotype. The pattern of carcinoma of the...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(92)90040-p
更新日期:1992-02-01 00:00:00
abstract::We examined the efficacy of CA125 and urinary gonadotropin fragment (UGF) measurements for differentiating benign from malignant pelvic masses. CA125, at a cutoff of greater than or equal to 35 U/ml, detected 82% (n = 71) of ovarian malignancies, but also falsely detected 14% of (n = 332) patients with benign pelvic m...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(90)90149-f
更新日期:1990-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the utility of amiodarone and its derivative dronedarone as novel drug repositioning candidates in EOC and to determine the potential pathways targeted by these drugs. METHODS:Drug-predict bioinformatics platform was used to assess the utility of amiodarone as a novel drug-repurposing candidate i...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2018.09.019
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:The efficacy and toxicity of neoadjuvant chemotherapy (NAC) with mitomycin-C, vincristine and cisplatin (MVC) were assessed in bulky cervical carcinoma patients. METHODS:Forty-six patients with stage IB2 to IIB cervical cancer were treated with intravenous combination of mitomycin-C 10 mg/m(2), vincristine 1...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2006.07.006
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVE:To evaluate, from a societal perspective, the cost-effectiveness of adding bevacizumab to first-line therapy based on outcomes from the GOG-218 and ICON-7 trials. METHODS:A three-state Markov model was used. The time horizon was until the death of 99% of the initial cohort of 1000 individuals. Costs and qual...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2014.01.021
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:Paranasal sinus metastasis following endometrial carcinoma is extremely rare and a reflection of disseminated disease. CASE:We report a case of a 72-year-old woman who presented ethmoid and sphenoid sinus metastasis, 14 months after total abdominal hysterectomy and bilateral salpingo-oophorectomy due to an ...
journal_title:Gynecologic oncology
pub_type: 杂志文章,评审
doi:10.1016/j.ygyno.2004.04.005
更新日期:2004-07-01 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::Between 1964 and 1980, 1878 patients were considered for radiotherapy at the Western Infirmary, Glasgow, of whom 1673 (91.8%) had squamous tumors and 120 (6.6%) adenocarcinomas. Of these, 1505 squamous carcinomas (92.5%) and 95 (5.8%) adenocarcinomas were treated by radical radiotherapy. The treatment given to either ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(89)90596-9
更新日期:1989-04-01 00:00:00
abstract::In a prospective study, the serum levels of CA 125 were estimated at regular intervals in 139 patients with ovarian carcinoma. Seventy-two of 78 patients with a second-look laparotomy had elevated CA 125 levels initially. The main aim of our investigation was the correlation of CA 125 levels with the histological find...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(89)90008-5
更新日期:1989-10-01 00:00:00
abstract::Despite high initial response rates to platinum-based chemotherapy, most patients with advanced ovarian carcinoma die of drug-resistant disease. Drug resistance can be overcome in the hematologic malignancies and lymphomas with high-dose therapy and bone marrow transplantation (BMT) when used early, suggesting that th...
journal_title:Gynecologic oncology
pub_type: 临床试验,杂志文章
doi:10.1006/gyno.1995.1143
更新日期:1995-06-01 00:00:00
abstract::Sixty-eight patients with FIGO stage I, grade 2 or 3 adenocarcinoma of the endometrium were treated according to a protocol involving 10 Gy external pelvic irradiation, prompt hysterectomy with surgical staging, and postoperative therapy individualized according to surgical-pathologic findings. Five-year survival for ...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(86)90222-2
更新日期:1986-02-01 00:00:00
abstract::Studies using serological and culture techniques indicate that chlamydial infection is frequently associated with cervical intraepithelial neoplasia (CIN). This relationship was investigated by examining a series of biopsies containing normal epithelium, non-neoplastic condylomatous epithelium, and neoplastic epitheli...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/0090-8258(84)90163-x
更新日期:1984-09-01 00:00:00
abstract:INTRODUCTION:Vulvar squamous cell carcinoma (VSCC) commonly metastasises through groin lymphatics. However, the use of pre-operative imaging in detecting inguinal nodal metastasis before staging surgery or to triage patients for sentinel node biopsy remains unclear. Here, we investigated if pre-operative CT scan, the i...
journal_title:Gynecologic oncology
pub_type: 杂志文章
doi:10.1016/j.ygyno.2020.01.031
更新日期:2020-05-01 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::Cervical intraepithelial neoplasia grade 3 (CIN 3) is treated surgically. Follow-up of these patients is important to ensure successful treatment. The present study was undertaken to determine whether human papillomavirus (HPV) testing can be used to discriminate patients who will have recurrences from those who will ...
journal_title:Gynecologic oncology
pub_type: 临床试验,杂志文章
doi:10.1006/gyno.1997.4753
更新日期:1997-07-01 00:00:00
abstract:OBJECTIVE:There is a need to find agents with activity in platinum and taxane refractory ovarian cancer to be employed as second-line therapy in the malignancy. Limited clinical trial experience has suggested that gemcitabine possesses activity in this clinical setting. We wished to further define the level of activity...
journal_title:Gynecologic oncology
pub_type: 临床试验,杂志文章
doi:10.1016/s0090-8258(03)00399-8
更新日期:2003-09-01 00:00:00