Abstract:
:A panel of eight conditionally immortal lines derived by infection of human breast epithelial cells with an amphotropic retrovirus transducing a ts mutant of SV40 large T-antigen was analyzed with respect to individual retroviral integration patterns. Each line contained multiple integration sites which were clonal and stable over extended passage. Similar integration patterns were observed between individual lines arising separately from the same stock of pre-immortal cells, suggesting a common progenitor. Retroviral integration analysis of pre-immortal cells at different stages of pre-crisis growth showed changes indicative of a progressive transition from polyclonality to clonality as the cells approached crisis. Each of the immortal lines contained a sub-set of the integration sites of their pre-immortal progenitors, with individual combinations and copy numbers of sites. Since all the cell lines appeared to originate from single foci in separate flasks, it is likely that each set arose from a common clone of pre-immortal cells as the result of separate genetic events. There was no evidence from this analysis to suggest that specific integration sites played any part either in the selection of pre-crisis clones or in the subsequent establishment of immortal lines.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Stamps AC,Davies SC,Burman J,O'Hare MJdoi
10.1002/ijc.2910570616subject
Has Abstractpub_date
1994-06-15 00:00:00pages
865-74issue
6eissn
0020-7136issn
1097-0215journal_volume
57pub_type
杂志文章abstract::HPP1 is a recently discovered gene that is epigenetically silenced in a number of tumor types, suggesting a potential role as a tumor suppressor. However, whether HPP1 has tumor suppressor activity is not clearly known. We have sought to investigate the effects of HPP1 on tumor growth and survival and to identify sign...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23202
更新日期:2008-04-01 00:00:00
abstract::Anti-idiotypic antibodies that mimic tumour-associated antigens can stimulate anti-tumour T-cell responses. In this article, we have studied the role of Fc in the presentation of T-cell epitopes by 2 anti-idiotypic antibodies, 105AD7 and 708. The human monoclonal antibody 105AD7, which mimics CD55, stimulated strong i...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1194
更新日期:2001-05-01 00:00:00
abstract::An experiment in which rats were injected intrapleurally with asbestos, the injection taking place at an age of either 2 or 10 months, is reported. In the former group 19 out of 48 rats developed a mesothelioma compared with 17 out of 90 in the latter group. However, by considering the two groups at equal times after ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910170410
更新日期:1976-04-15 00:00:00
abstract::The breakpoint of the 18q21 translocation of B-cell-non-Hodgkin's lymphoma (NHL) cell line Karpas1106P was delineated by fluorescence in situ hybridization (FISH). Karpas1106P was derived from mediastinal lymphoblastic B-cell lymphoma and exhibited the immunophenotype characteristic of marginal-zone B-cell lymphoma (M...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980925)78:1<100::aid-ijc
更新日期:1998-09-25 00:00:00
abstract::Docetaxel (DOC), a member of the taxane family of anticancer drugs, binds to tubulin and produces unnaturally stable microtubules that induce cell death. DOC is used clinically alone or in combination with other compounds to treat advanced stages of cancer. We have treated the human lung cancer cell lines A549 and H12...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21372
更新日期:2006-01-15 00:00:00
abstract::An antigen, protein X (Px), was purified from immune complexes isolated from malignant pleural effusions from patients with adenocarcinoma of the lung by EDTA treatment, PEG 8000 precipitation, protein A affinity chromatography, and Sephadex G-200 separation in the presence of 3 M NaCl. The purified antigen had a M(r)...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910520404
更新日期:1992-10-21 00:00:00
abstract::Adenovirus early region 4 open reading frame 4 (E4orf4) protein is a novel cell death factor that selectively induces apoptosis in cancer cells. This study evaluated tumor inhibitory effects of a protein made by fusion E4orf4 and human epidermal growth factor (EGF). EGF was used to ensure the selective targeting of EG...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.24415
更新日期:2009-09-01 00:00:00
abstract::The genetic events underlying the development of prostate cancer are poorly defined. c-Myc is often activated in tumors that have progressed to metastatic status, so events that promote this process may be important. Bin1 is a nucleocytoplasmic adaptor protein with features of a tumor suppressor that was identified th...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(20000415)86:2<155::aid-ijc
更新日期:2000-04-15 00:00:00
abstract::Azathioprine (AZ) was injected into C57 Black mice before or after IM implantation of the syngeneic fibrosarcoma FS6, and observations were made on tumour growth and on the cellular composition of the fibrosarcomas. When multiple injections were given to the tumour-bearing host the tumours regressed. The percentage of...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910200119
更新日期:1977-07-15 00:00:00
abstract::Apoptin is a chicken anemia virus-derived, p53-independent, bcl-2-insensitive apoptotic protein with the ability to specifically induce apoptosis in tumor cells. To explore the use of the Apoptin gene in cancer gene therapy, we constructed a recombinant fowlpox virus expressing the Apoptin protein (vFV-Apoptin) and co...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22215
更新日期:2006-12-15 00:00:00
abstract::We have previously developed 3 monoclonal anti-idiotypic antibodies (Ab2) of LOU rat origin directed against the binding site of the murine monoclonal IgM LAM8, which recognizes the small-cell lung carcinoma (SCLC)-associated sialoglycoprotein antigen sGP 90-135. The aim of this study was to compare the efficiencies o...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910500118
更新日期:1992-01-02 00:00:00
abstract::Tobacco-related carcinogens cause a variety of DNA damage that is repaired by different enzymatic pathways, suggesting that DNA repair plays an important role in tobacco-induced carcinogenesis. In a large hospital-based case-control study, we investigated DNA repair capacity (DRC) as a biomarker for susceptibility to ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11346
更新日期:2003-10-20 00:00:00
abstract::Studies were performed to characterize the effector cells responsible for natural cytotoxicity of mouse lymphoid cells against a variety of syngeneic and allogeneic tumor lines. Since spleen cells from normal nude mice were found to be highly cytotoxic, they were used for most of these experiments. Only a small propor...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910160205
更新日期:1975-08-15 00:00:00
abstract::Using a method optimized in hepatocellular carcinoma (HCC), we established patient-derived xenograft (PDX) models with an increased take rate (42.2%) and demonstrated that FBS +10% dimethyl sulfoxide exhibited the highest tumor take rate efficacy. Among 254 HCC patients, 103 stably transplantable xenograft lines that ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32564
更新日期:2020-03-15 00:00:00
abstract::Abnormal methionine dependence in cancer cells has led to methionine restriction as a potential therapeutic strategy. We hypothesized that genetic variants involved in methionine-metabolic genes are associated with survival in nonsmall cell lung cancer (NSCLC) patients. Therefore, we investigated associations of 16,37...
journal_title:International journal of cancer
pub_type: 杂志文章,meta分析
doi:10.1002/ijc.32128
更新日期:2019-08-01 00:00:00
abstract::Organochlorine insecticides have been studied extensively in relation to breast cancer incidence, and results from two meta-analyses have been null for late-life residues, possibly due to measurement error. Whether these compounds influence survival remains to be fully explored. We examined associations between organo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29806
更新日期:2016-02-01 00:00:00
abstract::Ocimum sp. is a traditionally used medicinal herb, which shows anti-oxidant, anti-carcinogenic, radio-protective and free radical scavenging properties. So far no detailed studies have been reported on its effects on human cancers. Thus, we analyzed its effects on human breast cancer utilizing in vitro and in vivo met...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22733
更新日期:2007-08-15 00:00:00
abstract::The modulation of DNA topology by topoisomerase II plays a crucial role during chromosome condensation and segregation in mitosis and has thus become a highly attractive target for chemotherapeutic drugs. However, these drugs are highly toxic, and so new approaches are required. One such strategy is to target topoisom...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21717
更新日期:2006-06-01 00:00:00
abstract::Hybridomas producing syngeneic monoclonal antibodies (MAbs) were prepared by fusion of spleen cells of BALB/c mice, which were immunized with sublethal doses of RMB-I cells. This cell line originates from a Rauscher virus (R-MuLV)-induced myeloid leukemia and forms tumors when re-inoculated into mice. MAbs were charac...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910420121
更新日期:1988-07-15 00:00:00
abstract::Germline variation in the TP53 network genes PRKAG2, PPP2R2B, CCNG1, PIAS1 and YWHAQ was previously suggested to have an impact on drug response in vitro. Here, we investigated the effect on breast cancer survival of germline variation in these genes in 925 Finnish breast cancer patients and further analyzed five sing...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.27884
更新日期:2013-05-01 00:00:00
abstract::Modulation of cytoplasmic Ca++ concentration is a mechanism common to signal transduction pathways regulating many cellular phenomena, including the interactions of tumors with the hemostatic system. We have investigated the pro-aggregating and pro-coagulant activities of human tumor cell lines cultured in vitro and t...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910620310
更新日期:1995-07-28 00:00:00
abstract::Numerous studies support a role for Sox2 to keep stem cells and progenitor cells in an immature and proliferative state. Coexpression of Sox2 and GFAP has been found in regions of the adult brain where neural stem cells are present and in human glioma cells. In our study, we have investigated the roles of Sox2 and its...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25647
更新日期:2011-07-01 00:00:00
abstract::Subtype-specific incidence patterns in populations at high risk of lymphoma offer insight into lymphomagenesis. The incidence profiles for the 2 most common non-Hodgkin lymphoma subtypes were compared for 2 immunodeficient populations, adults receiving a kidney transplant 1982-2003 (n = 7,730) or diagnosed with human ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25272
更新日期:2010-12-01 00:00:00
abstract::The expression of the nuclear SV40-induced T antigen was measured by microfluorimetry on individual, asynchronously growing SV40-transformed cells which had been stained with hamster T-antiserum by the indirect immunofluorescence method. The same individual cells were first measured for T antigen and then for DNA by F...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910150403
更新日期:1975-04-15 00:00:00
abstract::We previously reported that DX-8951f, a novel water-soluble camptothecin analog, significantly inhibits the growth of various human and murine tumors in vitro and in vivo. The antitumor effects and topoisomerase I inhibitory activity of DX-8951f are stronger than those of other current camptothecin analogs. In this st...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970807)72:4<680::aid-ijc
更新日期:1997-08-07 00:00:00
abstract::Phenotypic differences among cancers with the same origin may be associated with chemotherapy response. CHFR silencing associated with DNA methylation has been suggested to be predictive of taxane sensitivity in diverse tumor types. However, the use of microsatellite instability (MSI:unstable-MSS:stable) as a predicti...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28390
更新日期:2014-02-01 00:00:00
abstract::A population-based case-control study was conducted to examine the effect of ingestion of vitamin C, carotenoids and retinol on risk of pharyngeal cancer. Data were available from 166 cases of pharyngeal cancer or their next-of-kin, and from 547 controls similar in age and sex to the cases. Odds ratios (ORs) relating ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910440406
更新日期:1989-10-15 00:00:00
abstract::We have recently reported that glioblastoma (GB)-initiating cells (GIC) with low expression and/or mutation of TP53 and high expression of PI3K ("responder" genetic profile) can be effectively and safely radiosensitized by the ATM inhibitor KU60019. We report here on drug's diffusion and elimination from the animal bo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29121
更新日期:2015-03-15 00:00:00
abstract::The influence of viremia on hepatic injury in patients infected with hepatitis C virus was examined by analysis of the relationship between alanine aminotransferase activity and the amount of hepatitis C virus RNA in sequential serum samples from I untreated patient with acute hepatitis C and 3 untreated patients with...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910520510
更新日期:1992-11-11 00:00:00
abstract::Spontaneous tumor development and primary oncogenesis were compared in a large number of NK4-deficient, homozygous C57Bl/6-bg/bg mice and their NK normal, heterozygous +/bg littermate controls. In a group of 167 retired breeders followed for spontaneous tumors, the probability of survival for mice eventually dying wit...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910350414
更新日期:1985-04-15 00:00:00