Abstract：
BACKGROUND:Gestational trophoblastic diseases (GTDs) are related to trophoblasts, and human chorionic gonadotropin (hCG) is secreted by GTDs as well as normal placentas. However, the asparagine-linked sugar chains on hCG contain abnormal biantennary structures in invasive mole and choriocarcinoma, but not normal pregnancy or hydatidiform mole. N-acetylglucosaminyltransferase-IV (GnT-IV) catalyses β1,4-N-acetylglucosamine branching on asparagine-linked oligosaccharides, which are consistent with the abnormal sugar chain structures on hCG. METHODS:We investigated GnT-IVa expression in GTDs and placentas by immunohistochemistry, western blot, and RT-PCR. We assessed the effects of GnT-IVa knockdown in choriocarcinoma cells in vitro and in vivo. RESULTS:The GnT-IVa was highly expressed in trophoblasts of invasive mole and choriocarcinoma, and moderately in extravillous trophoblasts during the first trimester, but not in hydatidiform mole or other normal trophoblasts. The GnT-IVa knockdown in choriocarcinoma cells significantly reduced migration and invasive capacities, and suppressed cellular adhesion to extracellular matrix proteins. The extent of β1,4-N-acetylglucosamine branching on β1 integrin was greatly reduced by GnT-IVa knockdown, although the expression of β1 integrin was not changed. In vivo studies further demonstrated that GnT-IVa knockdown suppressed tumour engraftment and growth. CONCLUSION:These findings suggest that GnT-IVa is involved in regulating invasion of choriocarcinoma through modifications of the oligosaccharide chains of β1 integrin.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Niimi K,Yamamoto E,Fujiwara S,Shinjo K,Kotani T,Umezu T,Kajiyama H,Shibata K,Ino K,Kikkawa Fdoi
10.1038/bjc.2012.496subject
Has Abstractpub_date
2012-12-04 00:00:00pages
1969-77issue
12eissn
0007-0920issn
1532-1827pii
bjc2012496journal_volume
107pub_type
杂志文章abstract：:Cyclooxygenase-2 (COX-2) is overexpressed in several epithelial tumours, including breast cancer. Cyclooxygenase-2-positive tumours tend to be larger, higher grade, node-positive and HER-2/neu-positive. High COX-2 expression is associated with poor prognosis. Cyclooxygenase-2 inhibition reduces the incidence of tumour...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/sj.bjc.6602690
更新日期：2005-08-01 00:00:00
abstract：:We previously demonstrated a characteristically high sensitivity of pancreatic cancer cells to interferon alpha (IFN-alpha) gene transfer, which induced a more prominent growth suppression and cell death in pancreatic cancer cells than in other types of cancers and normal cells. The IFN-alpha protein can exhibit both ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6602713
更新日期：2005-08-22 00:00:00
abstract：:Meningiomas are tumours derived from the arachnoid and pia mater. During embryogenesis, these membranes develop from the migrating craniofacial neural crest. We have previously demonstrated that meningiomas have characteristic features of embryonic meninges. Craniofacial neural crest derivatives are affected during no...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6690705
更新日期：1999-10-01 00:00:00
abstract：BACKGROUND:Most studies use hospital data to calculate postoperative complication rates (PCRs). We report on improving PCR estimates through use of patient-reporting. METHODS:A prospective cohort study of major surgery performed at 10 UK gynaecological cancer centres was undertaken. Hospitals entered the data contempo...
journal_title：British journal of cancer
pub_type： 杂志文章,多中心研究
doi：10.1038/bjc.2013.366
更新日期：2013-08-06 00:00:00
abstract：:A sequential, quantitative loss of Peanut agglutinin (PNA) binding with progression of mouse mammary cells from normal to preneoplastic to neoplastic phenotypes was observed. Normal mammary epithelium, preneoplastic mammary lesions designated D2HAN (D2-type hyperplastic alveolar nodules) and a series of nine spontaneo...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1992.138
更新日期：1992-05-01 00:00:00
abstract：:To our knowledge, very few data about the role of Topoisomerase IIalpha (TOPO-IIalpha), an enzyme involved in critical steps of tumour cell proliferation and chemoresistance are currently available in ovarian cancer patients. The aim of this study was to investigate the prognostic value of TOPO-IIalpha expression in a...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604410
更新日期：2008-06-17 00:00:00
abstract：:Experimental studies show that vitamin D derivatives are potent anticarcinogenic factors. Epidemiological observations support this, and vitamin D sufficiency has been hypothesised to be an important risk-reducing factor in several forms of cancer. Vitamin D level exhibits seasonal variations. In the present work, we ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6602722
更新日期：2005-09-05 00:00:00
abstract：:Monoclonal antibodies to carcinoembryonic antigen (CEA) promise improved specificity for the measurement of this widely expressed human cancer antigen. A mouse monoclonal antibody binds weakly to CEA in perchloric acid extracts of tumour but strongly to CEA similarly isolated from serum, and its spectrum of cancer det...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1981.1
更新日期：1981-01-01 00:00:00
abstract：:The pp125 focal adhesion kinase (FAK) is involved in integrin-mediated cell signalling and overexpressed in a variety of solid tumours. Focal adhesion kinase expression has been correlated to invasion and metastasis, but the data on breast cancer are inconclusive. We analysed FAK mRNA, protein levels and expression pa...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6602744
更新日期：2005-09-19 00:00:00
abstract：:Two hundred and thirteen lung tumours of primary site and 42 metastases were heterotransplanted into nude mice with an overall success rate of 44%. There were differences in success between the histological types. Squamous cell and adenocarcinoma had the highest success rate (51% and 43%, respectively) whereas large c...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1985.29
更新日期：1985-02-01 00:00:00
abstract：BACKGROUND:Combined-modality therapy is a promising approach to improve the therapeutic index of radiotherapy. However, these improvements could come at the cost of increased toxicities. Clinical trials evaluating anti-tumour efficacy of bevacizumab combined with radiotherapy have encountered unexpected side effects. T...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2012.236
更新日期：2012-07-10 00:00:00
abstract：:Pancreatic cancers occurring in carriers of a pathogenic germline alteration in BRCA1/2 (gBRCA1/2) are assumed to demonstrate homologous recombination repair deficiency (HRD), associated with sensitivity to platinum-based chemotherapy and synthetic lethality with PARP inhibitors (PARPi). However, primary and secondary...
journal_title：British journal of cancer
pub_type： 评论,社论
doi：10.1038/s41416-019-0645-9
更新日期：2020-02-01 00:00:00
abstract：:In a population-based prospective study of 19,998 Japanese individuals, consumption of vegetables, green-yellow and green leafy vegetables was inversely associated with the risk of hepatocellular carcinoma (101 cases), with multivariable hazard ratios for the highest vs lowest tertile of 0.61 (95% confidence interval ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604843
更新日期：2009-01-13 00:00:00
abstract：BACKGROUND:Cutaneous melanoma is the most serious skin malignancy and new therapeutic strategies are needed for advanced melanoma. TP53 mutations are rare in cutaneous melanoma and hence activation of wild-type p53 is a potential therapeutic strategy in cutaneous melanoma. Here, we investigated the WIP1 inhibitor, GSK2...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2017.433
更新日期：2018-02-20 00:00:00
abstract：:Recently, apoptosis has been implicated as one of the end points of cells exposed to chemotherapeutic agents. The p53 and Bcl-2 family of proteins are involved in chemotherapy-induced apoptosis, but in a cell type-dependent manner. We sought to determine the roles played by the p53 and Bcl-2 family of proteins in 5-fl...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1998.617
更新日期：1998-10-01 00:00:00
abstract：BACKGROUND:Testing for high-risk human papillomavirus (HPV) in primary screening for cervical cancer is considered more sensitive, but less specific, in comparison with Pap-smear cytology. Women with persistent HPV infections have a higher risk of developing cervical intraepithelial neoplasia 2+ (CIN2+) lesions. This s...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2011.277
更新日期：2011-08-23 00:00:00
abstract：BACKGROUND:Bevacizumab has broad anti-tumour activity, but substantial risk of hypertension. No reliable markers are available for predicting bevacizumab-induced hypertension. METHODS:A genome-wide association study (GWAS) was performed in the phase III bevacizumab-based adjuvant breast cancer trial, ECOG-5103, to eva...
journal_title：British journal of cancer
pub_type： 杂志文章,随机对照试验
doi：10.1038/bjc.2014.430
更新日期：2014-09-09 00:00:00
abstract：:Sodium polyanethol sulphonate (SPS) when incorporated into rat erythrocyte lysate (REL) containing semi-solid agar medium at 1 mg ml-1. markedly enhanced colony formation by a number of anchorage-independent cell lines. REL usually needed to be included for the expression of SPS induced potentiation as in its absence ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1984.230
更新日期：1984-11-01 00:00:00
abstract：:Tumour necrosis factor (TNF) related apoptosis-inducing ligand (TRAIL/APO2L) is a recently identified member of the TNF family, which induces programmed cell death in a variety of neoplastic cell types, but not in most nonneoplastic cells. In this study, we report on the identification of two novel alternative splice ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6600772
更新日期：2003-03-24 00:00:00
abstract：:Intrapleurally injected cells of an ascitic rat tumour produced intrapleural effusions and solid pleural deposits. BCG, or its methanol extraction residue (MER) injected into the pleural space, suppressed tumour development and prolonged survival. Treatment was effective if given a few days before or after tumour inje...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1976.179
更新日期：1976-10-01 00:00:00
abstract：:Histological sections of the primary tumour and of homolateral axillary lymph nodes from 500 women with operable invasive breast cancer have been examined. The tumours have been graded and the degree of round cell infiltration assessed. These features, together with clinical palpability and pathological involvement of...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1972.19
更新日期：1972-04-01 00:00:00
abstract：:In several phase II-trials encouraging tumour responses rates in advanced metastatic melanoma (stage IV; AJCC-classification) have been reported for the application of biochemotherapy containing interleukin 2. This study was designed to compare the efficacy of therapy with dacarbazine (DTIC) and interferon alpha (IFN-...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1054/bjoc.2001.1731
更新日期：2001-04-20 00:00:00
abstract：BACKGROUND:Folate receptor 1 (FOLR1) is expressed in the majority of ovarian carcinomas (OvCa), making it an attractive target for therapy. However, clinical trials testing anti-FOLR1 therapies in OvCa show mixed results and require better understanding of the prognostic relevance of FOLR1 expression. We conducted a la...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2014.567
更新日期：2014-12-09 00:00:00
abstract：:Antibodies to the tumour-specific transplantation type antigen (TSTA) of a transplanted methylcholanthrene-induced sarcoma (MC-1) in syngeneic rats were studied using the techniques of indirect membrane immunofluorescence and mixed haemadsorption with a (51)Cr-labelled indicator cell. After tumour excision, anti-TSTA ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1973.4
更新日期：1973-01-01 00:00:00
abstract：:Forty-two patients with small cell lung cancer were treated with a combination of carboplatin, ifosfamide and etoposide. Vincristine was given on day 14 of each course, the courses being repeated every 28 days for a maximum of six. Thoracic radiotherapy was given 4 weeks after the last course of chemotherapy but no pr...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1989.228
更新日期：1989-07-01 00:00:00
abstract：:In the early period following radical hepatectomy for hepatoma, recurrences in the remaining liver are frequently found. In regenerating liver, implantation and growth of tumour cells released into the portal system during surgical treatment might be promoted. We examined the relationship between liver regeneration an...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1992.170
更新日期：1992-06-01 00:00:00
abstract：:The evidence base for head and neck cancers is low with relatively few randomized controlled trials of the two main treatments, surgery and radiotherapy. The aim of the study was to investigate the patterns of surgery and radiotherapy treatment for head and neck cancers in three large areas of England and to investiga...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6690695
更新日期：1999-09-01 00:00:00
abstract：BACKGROUND:The percentage of tumour stroma (TSP) has recently been reported to be a novel independent predictor of outcome in patients with a variety of common solid organ tumours. The aim of this study was to examine the relationship between TSP, clinicopathological characteristics and outcome in patients with invasiv...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2014.279
更新日期：2014-07-08 00:00:00
abstract：:A monoclonal antibody recognizing the blood group H type 2 antigen has been obtained from a BALB/c mouse immunized with MCF-7 (human mammary carcinoma) cells. The specificity of this antibody (A46-B/B10, IgM, kappa) has been identified by haemagglutination tests, immunohistochemistry, binding inhibition studies, and a...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1988.187
更新日期：1988-08-01 00:00:00
abstract：:Classification of lymphoid malignancy has changed markedly in recent years and advances have been made in therapy. This study investigated the variations in treatment and survival of 1622 patients in a population-based registry. A total of 1009 cases of malignant lymphoma (ML) were classified according to the Kiel cla...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1995.406
更新日期：1995-09-01 00:00:00
