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 spontaneous tumours (D2ST1, D2ST2, D2ST3, D2ST4, D2A1, D2F2, D2.0R, D2.1, EMT6R08) derived from mice bearing D2HAN were grown in culture and analysed by flow cytometry with respect to PNA binding intensity to the cell surface. Primary cultures of normal mammary epithelium strongly bound PNA. A stepwise decrease in PNA binding by preneoplastic D2HAN cells and subsequent tumours arising from those hyperplastic lesions was observed. Three cloned tumour subpopulations derived from such tumours exhibited dramatic differences in PNA binding ranging from high (D2.0R) to low (D2.1) to very low (D2A1 cells). Their growth rate in vitro was similar. However, an inverse correlation between PNA binding and malignant characteristics, such as the incidence and latency of subcutaneous tumours and the efficiency of the tumour cells to form lung colonies after i.v. injection, existed. Cells subsequently derived from tumours resulting from injection of the D2.0R clone (high PNA binding, low tumorigenicity) were found to have diminished PNA binding properties and to be more tumorigenic when reimplanted into syngeneic mice. The difference in PNA binding (up to 50-fold) between normal mammary cells and other mouse mammary tumour cells, i.e., unrelated to D2HAN lesions, was also seen. These include six sister subpopulations derived from a single BALB/cfC3H mouse mammary tumour (lines: 67, 66c14, 168FARN, 4TO7, 68H, 64pT) as well as SP1 spontaneous CBA/J mouse mammary carcinoma. The difference was greatly reduced by neuraminidase treatment suggesting a masking of PNA binding sites by sialic acid. Separation of cell lysates by SDS-PAGE revealed a high molecular weight PNA binding glycoprotein (greater than 250 kd) expressed by normal mammary epithelium and preneoplastic D2HAN cells, but not by tumour cells regardless of neuraminidase treatment. A PNA reactive glycoprotein of approximately 90 kd was uniquely expressed in normal mammary epithelial lysates, although neuraminidase treatment exposed a similar band in a few tumour lines. Normal mammary epithelium, preneoplastic D2HAN cells, and the poorly tumorigenic clone D2.0R expressed a PNA binding glycoprotein of approximately 150 kd. This band appeared to be specifically sialylated during transition from the high PNA binding, low tumorigenic phenotype of D2.0R cells to the low PNA binding, highly tumorigenic phenotype of cells isolated from tumours resulting from s.c. implantation of D2.0R cells.(ABSTRACT TRUNCATED AT 400 WORDS)
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Rak JW,McEachern D,Miller FRdoi
10.1038/bjc.1992.138subject
Has Abstractpub_date
1992-05-01 00:00:00pages
641-8issue
5eissn
0007-0920issn
1532-1827journal_volume
65pub_type
杂志文章abstract::We examined the associations of body mass index (BMI), waist circumference, a history of diabetes, and cigarette smoking with risk of pancreatic cancer among 37,147 women and 45,906 men followed up during 560,666 person-years in the Swedish Mammography Cohort and the Cohort of Swedish Men; 136 incident cases of pancre...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6602868
更新日期:2005-11-28 00:00:00
abstract::This study has been designed to verify the specific toxicity of saporin, a type 1 ribosome-inactivating protein (RIP), with the same activity as ricin A chain, targeted by a bispecific monoclonal antibody (bimAb) recognising both the CD25 antigen and the RIP. The CD25 antigen is expressed by lymphoid populations upon ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1993.233
更新日期:1993-06-01 00:00:00
abstract::We have previously shown that epidermal growth factor (EGF) enhances the in vitro and in vivo sensitivity of human ovarian carcinoma 2008 cells to cisplatin. EGF was found to enhance selectively the in vivo toxicity of cisplatin to 2008 cell xenografts without altering the toxicity of cisplatin to non-malignant target...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1995.382
更新日期:1995-09-01 00:00:00
abstract::The therapeutic efficacy of gemcitabine, a new nucleoside analogue, was assessed in a variety of well-established human soft tissue sarcoma and ovarian cancer xenografts grown s.c. in nude mice. Tumour lines selected had different histological subtypes, growth rates and sensitivities to conventional cytostatic agents....
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1993.285
更新日期:1993-07-01 00:00:00
abstract::We have investigated the influence of tumour cell DNA content (ploidy) on survival of 416 patients undergoing excisional surgery for colorectal cancer. Two hundred and eleven (51%) tumours had an abnormal DNA content (aneuploid or tetraploid). There was no correlation between ploidy status, sex, age and pathological s...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1990.393
更新日期:1990-11-01 00:00:00
abstract:BACKGROUND:Emergence of drug-resistant cancer phenotypes is a challenge for anti-cancer therapy. Cancer stem cells are identified as one of the ways by which chemoresistance develops. METHOD:We investigated the anti-inflammatory combinatorial treatment (DA) of doxorubicin and aspirin using a preclinical microfluidic m...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-018-0301-9
更新日期:2019-02-01 00:00:00
abstract::The overall tumour incidence and breast cancer incidence related to hormone replacement therapy (HRT) were followed in a population-based cohort of 29 508 women, aged 25-65 when interviewed in 1990-92. By the end of the follow up in December 1999, there were 226 611 person-years of observation. A total of 1145 maligna...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2001.1899
更新日期:2001-09-01 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::We used the nation-wide Swedish Family-Cancer Database to examine the risk for testicular cancer in offspring through parental and sibling probands. Among 0-68-year-old offspring, 4082 patients had testicular cancer in years 1961-2000, among whom 68 (1.67%) had an affected father/brother. Standardized incidence ratios...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601714
更新日期:2004-05-04 00:00:00
abstract::Chinese hamster V79-171B spheroids implanted in the peritoneal cavity of C3H mice were characterized as a model for evaluating the toxicity of drugs requiring metabolic activation in vivo. After 24 hours in the peritoneal cavity, spheroid cellularity and plating efficiency were not significantly decreased, and host ce...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1987.196
更新日期:1987-09-01 00:00:00
abstract::Based on the evaluation of 362 cases of squamous cell carcinoma of the uterine cervix, the distribution of the tumours in relation to their modified Broders' grade, histological cell type as proposed by Wentz and Reagan, and the clinical stage of disease was evaluated. The morphological characteristics of the 3 cell t...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1973.155
更新日期:1973-10-01 00:00:00
abstract::Covalent modifications of histones, such as acetylation, methylation, and phosphorylation, and other epigenetic modulations of the chromatin, such as methylation of DNA and ATP-dependent chromatin reorganisation, can play a major part in the multistep process of carcinogenesis, with far-reaching implications for human...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/sj.bjc.6601575
更新日期:2004-02-23 00:00:00
abstract:BACKGROUND:Childhood cancer survival estimates from developing nations are rare. METHODS:Using the US SEER and the Manila and Rizal Cancer Registry databases in the Philippines, 5-year survival for childhood leukaemia and lymphoma in 2001-2005 among Asian Americans were compared with both Filipinos and Caucasians in t...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605703
更新日期:2010-06-29 00:00:00
abstract::Mediastinal masses include a wide variety of tumours and remain an interesting diagnostic challenge for radiologist. We performed positron emission tomography (PET) studies of primary mediastinal tumours in order to predict the malignancy of these tumours preoperatively. Twenty-two patients with primary mediastinal tu...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章
doi:10.1038/bjc.1996.157
更新日期:1996-04-01 00:00:00
abstract::In the present study the putative chemopreventive effect of dietary fish oil (MaxEPA) on azaserine-induced pancreatic carcinogenesis in rats was investigated. Groups of rats were maintained on a semipurified low-fat (LF; 5 wt%) diet or on semipurified high-fat (HF; 25 wt%) diets containing 5 wt% linoleic acid (LA) and...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1996.7
更新日期:1996-01-01 00:00:00
abstract::The ability of the sister chromatid exchange (SCE) assay to detect heterogeneity in intrinsic radiation sensitivity was investigated. In order to identify tumour cell subpopulations, frequency histograms of cis-diamminedichloroplatinum (II) (cPt)-induced SCEs were generated and compared to those from cultures that had...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1989.11
更新日期:1989-01-01 00:00:00
abstract::Increasingly, reverse transcriptase polymerase chain reaction (RT-PCR) is used to detect clinically significant tumour cells in blood or bone marrow. This may result in a redefinition of disease-free and clinical relapse. However, its clinical utility may be limited by lack of automation or reproducibility. Recent stu...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6600014
更新日期:2002-01-07 00:00:00
abstract::Studies in animal models of mouse mammary carcinoma have shown that ovine submaxillary mucin, which carries multiple sialyl-Tn (STn) epitopes, is effective in stimulating an immune response and inhibiting tumour growth. In similar studies using carbohydrate antigens, pretreatment with low-dose cyclophosphamide has bee...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1038/bjc.1996.532
更新日期:1996-10-01 00:00:00
abstract::Preoperative radiotherapy (PRT) in resectable rectal cancer improves local control but increases probability of faecal incontinence and sexual dysfunction. Consensus was reached in 2001 in the Netherlands on a guideline advising PRT to new patients. Purpose was to assess at what benefit oncologists and rectal cancer p...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6603954
更新日期:2007-09-17 00:00:00
abstract:BACKGROUND:Chemerin, a known chemoattractant, participates in multiple biological events. However, its role in cancer remains largely unknown. METHODS:Chemerin expression was evaluated by real-time PCR, western blot and immunohistochemistry. Forced expression, RNAi, immunoprecipitation, etc. were used in function and ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-018-0077-y
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:To date, no good marker for screening or disease monitoring of endometrial cancer (EC) is available. The aims of this study were to investigate HE4 gene, protein expression and serum HE4 (sHE4) levels in a panel of ECs and normal endometria (NEs) and to correlate sHE4 with patient clinicopathological charact...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2011.109
更新日期:2011-04-26 00:00:00
abstract:BACKGROUND:The purpose of this study was to identify prostate cancer (PC) oncogenic microRNAs (miRs) based on miR microarray and to investigate whether these oncogenic miRs may be useful as PC biomarkers. METHODS:Initially, we carried out miR microarray and real-time PCR using RWPE-1, PC-3, DU-145 and LNCaP cells. To ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.125
更新日期:2013-04-30 00:00:00
abstract:BACKGROUND:Although mortality rates are elevated in psychiatric patients relative to their healthy counterparts, little is known about the impact of mental health on survival in people with cancer. METHODS AND RESULTS:Among 16 498 Swedish men with cancer, survival was worse in those with a history of psychiatric hospi...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.150
更新日期:2012-05-22 00:00:00
abstract:BACKGROUND:Progression-free survival (PFS) is a surrogate endpoint widely used for overall survival (OS) in oncology. Validation of PFS as a surrogate must be done for each indication and each intervention. We aimed to identify all studies evaluating the validity of PFS as a surrogate for OS in oncology, and to describ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-020-0805-y
更新日期:2020-05-01 00:00:00
abstract::Carcinomas of unknown primary (CUP) represent between 3 and 10% of malignancies. Treatment with nonspecific chemotherapy is commonly unhelpful and the median survival is between 3 and 6 months. Gene expression microarray (GEM) analysis has demonstrated that molecular signatures can aid in tumour classification and pro...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6604315
更新日期:2008-04-22 00:00:00
abstract:BACKGROUND:A remarkably better prognosis is associated with oropharyngeal squamous cell carcinomas (OPSCC) driven by human papillomaviruses (HPV) compared with HPV-negative OPSCC. Consequently, de-escalation of standard treatment has been suggested. Due to modest specificity rates, debates are ongoing, whether p16INK4a...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-020-0964-x
更新日期:2020-09-01 00:00:00
abstract::To evaluate whether green tea consumption provides protection against stomach cancer, the relative risks (RRs) were calculated in the Japan Collaborative Study for Evaluation of Cancer Risk, sponsored by the Ministry of Health and Welfare (JACC Study). The study was based on 157 incident cases and 285 controls aged 40...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601512
更新日期:2004-01-12 00:00:00
abstract:BACKGROUND:The addition of breast magnetic resonance imaging (MRI) to screening mammography for women with BRCA mutations significantly increases sensitivity, but there is little data on clinical outcomes. We report screening performance, cancer stage, distant recurrence rate, and breast cancer-specific mortality in ou...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.204
更新日期:2012-06-26 00:00:00
abstract::Preclinical studies have demonstrated the synergistic anti-tumour activity of combination therapy with the oral cytostatics, 5'-deoxy-5-fluorouridine (5'-DFUR) and cyclophosphamide (CPA), in human breast cancer xenograft models. This study was performed to evaluate the efficacy and safety of this oral combination chem...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章
doi:10.1038/sj.bjc.6601350
更新日期:2003-11-03 00:00:00
abstract::The brain-specific angiogenesis inhibitor 1 gene has been isolated in an attempt to find fragments with p53 "functional" binding sites. As reported herein and by others, brain-specific angiogenesis inhibitor 1 expression is present in some normal tissues, but is reduced or lost in tumour tissues. Such data and its par...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6600067
更新日期:2002-02-01 00:00:00