Abstract：
:The carcinogenicity of the vegetative tissues of bracken fern (Pteridium) has long been established. More recently, the carcinogenic effects of the spores of bracken have also been recognized. Both vegetative tissues and spores of bracken can induce adducts in DNA in animal tissues, but the possible genotoxic or carcinogenic effects of spores from fern species other than bracken are unknown. The single-cell gel electrophoresis ('comet') assay was used to investigate whether fern spores can cause DNA damage in vitro. Extracts of spores from six fern species were administered to cultured human premyeloid leukaemia (K562) cells. Spore extracts of five fern species: Anemia phyllitidis, Dicksonia antarctica, Pteridium aquilinum, Pteris vittata and Sadleria pallida, induced significantly more DNA strand breaks than those in the control groups. Only in one species, Osmunda regalis, was the effect no different from that in the control groups. Using extracts from A. phyllitidis and P. vittata, the extent of DNA damage was increased by increasing the original dose 10 times, whereas an experiment in which exposure times were varied suggested that the highest levels of strand breaks appear after 2 h exposure. Simultaneous incubation with human S9 liver enzyme mix ablated the damaging effect of the extracts. Our data show that fern spore extracts can cause DNA damage in human cells in vitro. Considering the strong correlation between DNA damage and carcinogenic events, the observations made in this report may well have some implications for human health.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Simán SE,Povey AC,Ward TH,Margison GP,Sheffield Edoi
10.1054/bjoc.2000.1204subject
Has Abstractpub_date
2000-07-01 00:00:00pages
69-73issue
1eissn
0007-0920issn
1532-1827pii
S0007092000912047journal_volume
83pub_type
杂志文章abstract：:Dormant and regressing implants of C3H mammary carcinoma MC2 were always found to be surrounded by a cellular fibrous capsule where macrophages and T cells predominated as the cellular elements. Macrophages were always closely associated with the collagen deposition, and stained with anti-collagen type I immuno-peroxi...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1991.169
更新日期：1991-05-01 00:00:00
abstract：:Magnetic resonance spectroscopy is increasingly used as a non-invasive method to investigate apoptosis. Apoptosis was induced in Jurkat T-cells by Fas mAb. (1)H magnetic resonance spectra of live cells showed an increase in methylene signal as well as methylene/methyl ratio of fatty acid side chains at 5 and 24 h foll...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6600188
更新日期：2002-03-18 00:00:00
abstract：:The normal epithelial cell-specific 1 (NES1) gene (official name kallikrein gene 10; KLK10) is a new member of the expanding human kallikrein gene family and encodes for a secreted serine protease. Experimental evidence suggests that NES1 controls normal cell growth and may function as a tumour suppressor. NES1 is dow...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2001.1870
更新日期：2001-07-20 00:00:00
abstract：:Cisplatin is one of the most active cytotoxic agents in the treatment of testicular cancer, but its clinical use is associated with side-effects such as ototoxicity, neurotoxicity and nephrotoxicity. Long-term kidney damage from cisplatin particularly affects the proximal tubular apparatus and can be detected by incre...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1996.673
更新日期：1996-12-01 00:00:00
abstract：:The NCA (nonspecific cross-reacting antigen) was assayed in sera of patients with chronic myeloid leukaemia (CML). It was elevated to a mean value of 145·6 ng/ml (± 104·4 ng/ml) compared to 37·8 ng/ml (± 14·6 ng/ml) the sera of normal subjects. Patients with active disease generally had higher serum NCA levels than th...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1982.269
更新日期：1982-11-01 00:00:00
abstract：:Interactions between immune and malignant cells have been known to have clinical relevance for decades. The potential for immune control is now being therapeutically enhanced with checkpoint inhibitors and other novel agents to improve outcomes in cancer. The importance of the immune infiltrate as a prognostic marker ...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/bjc.2017.220
更新日期：2017-08-08 00:00:00
abstract：BACKGROUND:Period analysis is increasingly used to compute long-term cancer survival, as it provides better prediction of survival of newly diagnosed patients than traditional cohort analysis. However, the patient population to which period survival estimates best pertain to and which should be described in a study is ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2013.14
更新日期：2013-02-19 00:00:00
abstract：:To determine the maximum-tolerated dose (MTD), dose-limiting toxicities and pharmacokinetic of semisynthetic homoharringtonine (ssHHT), given as a twice daily subcutaneous (s.c.) injections for 9 days, in patients with advanced acute leukaemia, 18 patients with advanced acute myeloid leukaemia were included in this se...
journal_title：British journal of cancer
pub_type： 杂志文章,随机对照试验
doi：10.1038/sj.bjc.6603265
更新日期：2006-08-07 00:00:00
abstract：BACKGROUND:BRCAness is defined as shared tumour characteristics between sporadic and BRCA-mutated cancers. However, how to exactly measure BRCAness and its frequency in breast cancer is not known. Assays to establish BRCAness would be extremely valuable for the clinical management of these tumours. We assessed BRCAness...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2013.144
更新日期：2013-05-28 00:00:00
abstract：:A CD34-negative haematopoietic progenitor cell line, D064, derived from canine bone marrow stromal cells is able to differentiate into haematopoietic progenitors under the influence of growth factor-mediated signalling. While differentiating, these cells eventually start to express MHC class II molecules (DR homologue...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6690768
更新日期：1999-11-01 00:00:00
abstract：:Forty-three children with malignant soft tissue sarcomas (IRS Groups II-IV) were treated with rapid dose delivery chemotherapy protocol comprising six courses of vincristine, adriamycin and cyclophosphamide, given in most cases within 8 weeks (Rapid VAC). This was followed in 36 patients by high dose melphalan with au...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1991.313
更新日期：1991-08-01 00:00:00
abstract：:Prostate cancer is the second leading cause of male death from malignant disease in Europe and in the USA. Failure to prevent or eliminate metastatic dissemination is a fundamental problem underlying the current inadequate treatment of prostate cancer, and novel therapeutic strategies are required if this disease is t...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1998.45
更新日期：1998-01-01 00:00:00
abstract：:A follow-up study of 1844 renal transplant patients in Italy showed a 113-fold increased risk for Kaposi's sarcoma. Kaposi's sarcoma risk was higher in persons born in southern than in northern Italy. Significant increases were also observed for cancers of the lip, liver, kidney and for non-Hodgkin's lymphoma. ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6602346
更新日期：2005-02-14 00:00:00
abstract：:The combination of heat and chemotherapy was studied in an intraperitoneal tumour model. Rats bearing peritoneal CC531 tumours (2-6 mm) were treated i.p. with cDDP or CBDCA [maximal tolerated dose (MTD)] in combination with regional hyperthermia (41.5 degrees C, 1 h) of the peritoneal cavity. The addition of hyperther...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1994.45
更新日期：1994-02-01 00:00:00
abstract：:The aim of this work was to test in vitro and in vivo the efficacy of the derivatives of 5-aminolevulinic acid (ALA): hexyl-ALA (He-ALA), undecanoyl-ALA and R,S-2-(hydroximethyl)tetrahydropyranyl-ALA (THP-ALA) as pro-photosensitising agents. The compounds were assayed in a cell line derived from a murine mammary tumou...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6601722
更新日期：2004-04-19 00:00:00
abstract：:Following relapse on endocrine therapy for advanced, hormone receptor-positive breast cancer, it is common for patients to experience responses to alternative endocrine agents. Fulvestrant ('Faslodex') is a new type of endocrine treatment--an oestrogen receptor (ER) antagonist with no agonist effects. Fulvestrant down...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/sj.bjc.6601632
更新日期：2004-03-01 00:00:00
abstract：:It remains unclear whether any aspect of quality of life has a role in predicting survival in an unselected cohort of patients with gastro-oesophageal cancer. Therefore the aim of the present study was to examine the relationship between quality of life (EORTC QLQ-C30), clinico-pathological characteristics and surviva...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604248
更新日期：2008-03-11 00:00:00
abstract：:Arginase activity was found to be increased in precancerous nodules and mammary tumour when compared with the mammary gland. Proline inhibited the mammary tumour arginase and up to 30 mmo1 concentration the inhibition follows first order kinetics. Hill analysis of the inhibition of arginase by proline showed that prol...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1974.123
更新日期：1974-08-01 00:00:00
abstract：:We have investigated the effects of 50 min whole-body hyperthermia (WBH; 15 min equilibration followed by 41 degrees C for 35 min) on the toxicity and pharmacokinetics of the radiosensitizer Ro 03-8799 in mice. WBH markedly reduced Ro 03-8799 LD50/7d from 779 to 259 micrograms g-1 (P less than 0.001). Pharmacokinetics...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1987.96
更新日期：1987-05-01 00:00:00
abstract：:Expression of the calcium-dependent cell-cell adhesion molecule E-cadherin has been examined in 187 primary breast carcinomas using an immunohistochemical technique. The pattern and extent of reactivity has been correlated with clinicopathological data including tumour type, grade and lymph node status and with other ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1996.522
更新日期：1996-10-01 00:00:00
abstract：:The response of a transplantable rat fibrosarcoma, RIB(5), to a single injection of 100 mg/kg body weight of cyclophosphamide, 0·5, 1, 2 and 3 days after treatment, has been studied by means of a morphometric analysis of tumour sections and has been compared to the changes occurring in untreated tumours. The results s...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1973.9
更新日期：1973-01-01 00:00:00
abstract：:Colorectal tumours from MYH polyposis patients display an excess of somatic G : C --> T : A transversions in the adenomatous polyposis coli gene. Here, we identify k-ras mutations in nine out of 54 (16.7%) MYH polyposis tumours. Their presence was associated with increased dysplasia and tubulovillous morphology (P=0.0...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6601747
更新日期：2004-04-19 00:00:00
abstract：:A chelating derivative of alpha-melanocyte stimulating hormone (MSH) has been synthesised, in which two molecules of the hormone are cross-linked by diethylenetriamine pentaacetic acid (DTPA). This compound, bisMSH-DTPA, was equipotent with MSH in an in vitro tyrosinase assay with Cloudman S91 melanoma cells. When DBA...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1990.409
更新日期：1990-12-01 00:00:00
abstract：:Male inbred Fischer rats were fed phenobarbitone-Na at a level of 500 parts/10(6) in the diet for 1 week, followed by 1000 parts 10(6) for 103 weeks at which time the survivors were killed. Thirty-three treated rats survived to 80 weeks. Before 80 weeks, no animals showed hyperplastic lesions. Of the 33 rats surviving...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1978.62
更新日期：1978-03-01 00:00:00
abstract：:This is the first study to investigate the associations of IGF-1, IGF-2 and IGFBP-3 concentrations with the risk of colorectal cancer in prospectively collected blood samples from an Oriental population. Between 1986 and 1989 serum samples were collected at baseline from 18 244 men, aged 45-65 years, without a history...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2001.2172
更新日期：2001-11-30 00:00:00
abstract：:Endogamous groups in Western India have been known to have a wide degree of genetic diversity. Analysis of the data available on some of the endogamous groups belonging to two main communities attending the Tata Memorial Hospital, Bombay, viz. Hindus from Maharashtra, and Hindus from Gujarat show that one of the endog...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1971.77
更新日期：1971-12-01 00:00:00
abstract：:The establishment and characterisation (morphology, ultrastructure, tumourigenicity) of six cell lines from primary human colorectal adenocarcinomas is described. These lines were established from surgical specimens, from 49 unselected patients, without the use of 'feeder' cells, 'conditioned' medium or passage of cel...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1986.132
更新日期：1986-06-01 00:00:00
abstract：:The fluorometric microculture cytotoxicity assay (FMCA) was employed for analysing the effect of different chemotherapeutic drug combinations and their single constituents in 44 cases of acute myelocytic leukaemia (AML). A large heterogeneity with respect to cell kill was observed for all combinations tested, the inte...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/bjc.1993.178
更新日期：1993-05-01 00:00:00
abstract：:Mutation of c-K-ras oncogene is an important step in progression of colon cancer. We used a hammerhead ribozyme (KrasRz) against mutated K-ras gene transcripts (codon 12, GTT) to inactivate mutant K-ras function in the colon cancer cell line SW480, harbouring a mutant K-ras gene. The beta-actin promoter-driven KrasRz ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2000.1363
更新日期：2000-09-01 00:00:00
abstract：BACKGROUND:Immunoscore have shown a promising prognostic value in many cancers. We aimed to establish and validate an immune classifier to predict survival after curative resection of hepatocellular carcinoma (HCC) patients who have undergone curative resection. METHODS:The immunohistochemistry (IHC) classifier assay ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-0864-0
更新日期：2020-07-01 00:00:00
