Abstract:
:Previous work from this laboratory established a large bank of human colon carcinoma cell lines in culture and classified them with respect to growth regulatory phenotypes based on several biological and biochemical characteristics. In the present report, Northern analysis indicates that addition of the maturational agent N,N-dimethylformamide (DMF) (1.0%) to proliferating HCT 116 and MOSER cells resulted in a repression of c-myc proto-oncogene expression; retinoic acid (1.0 microM) was less effective in this regard. Repression of c-myc expression by DMF was observed in MOSER and HCT 116 cells, whether it was added to proliferating or late log phase cultures, and was associated with a corresponding reduction in cellular proliferation. The reduction in c-myc expression by DMF did not require new protein synthesis and occurred within a few minutes after its addition, resulting in a 70% reduction within approximately 2 hr. Previous work from this laboratory indicated that transforming growth factor-beta (TGF-beta) elicited alterations in MOSER cells similar to those observed following DMF treatment. The present report demonstrates that proliferating, but not late log phase, MOSER cells responded to TGF-beta with a repression of c-myc expression. Similarly, an inhibition of cellular proliferation was only observed when TGF-beta (10 ng/ml) was added to proliferating cells. Collectively, these findings indicate that repression of c-myc expression is associated with diminished cellular proliferation and the induction of a more benign phenotype in human colon carcinoma cells. Furthermore, this report is the first demonstration of a c-myc response to TGF-beta in an epithelial cell line.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Mulder KM,Brattain MGdoi
10.1002/ijc.2910420113subject
Has Abstractpub_date
1988-07-15 00:00:00pages
64-70issue
1eissn
0020-7136issn
1097-0215journal_volume
42pub_type
杂志文章abstract::Human papillomavirus (HPV) infections and HPV-associated penile lesions are frequently found in male sexual partners of women with cervical intraepithelial neoplasia (CIN). To determine the significance of these findings, we studied the prevalence of HPV and HPV associated penile lesions in a male hospital population ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20502
更新日期:2005-01-01 00:00:00
abstract::The impact of screening by visual inspection with acetic acid (VIA), cytology or HPV testing on cervical cancer incidence and mortality is investigated in a cluster randomized controlled trial in India. We report findings after the screening phase, when 52 clusters, with a total of 142,701 women aged 30-59 years in Os...
journal_title:International 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:10.1002/ijc.21050
更新日期:2005-09-10 00:00:00
abstract::Mouse IFN gamma preparations purified 30-fold were found to have direct cytolytic activity against a number of tumor and normal cells. Cell killing was determined using a sensitive, rapid and accurate assay which employed very low numbers of cells and very small quantities of interferon. The cytolytic activity of IFN ...
journal_title:International journal of cancer
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doi:10.1002/ijc.2910300111
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abstract::Aberrant methylation of CpG islands (CGI) not only plays a role in gene silencing, but is also a potential cancer biomarker. To identify more CGI aberrantly methylated in human breast cancers, we carried out a genome-wide search for aberrant methylation, using methylation-sensitive-representational difference analysis...
journal_title:International journal of cancer
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doi:10.1002/ijc.21054
更新日期:2005-09-01 00:00:00
abstract::Parvoviruses of rodents are endowed with oncosuppressive properties. In particular, parvoviral infections protect host animals from spontaneous and chemical- or virus-induced tumour initiation in laboratory animals. The present study was undertaken to substantiate the capacity of parvovirus H-1 to inhibit therapeutica...
journal_title:International journal of cancer
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doi:10.1002/(sici)1097-0215(19980209)75:4<584::aid-ijc
更新日期:1998-02-09 00:00:00
abstract::Biliary tract cancers have dismal prognoses even when cytotoxic chemotherapy is administered. There is an unmet need to develop precision treatment approaches using comprehensive genomic profiling. A total of 121 patients with biliary tract cancers were analyzed for circulating-tumor DNA (ctDNA) and/or tissue-based tu...
journal_title:International journal of cancer
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abstract::In order to examine whether or not the expression of the apoptosis-related receptor Fas (CD-95/APO-1) and its ligand (FasL) has relevance for patient survival, immunohistochemistry was used to analyze the proteins of both factors in 164 non-small cell lung carcinomas. Patients with Fas-positive tumors exhibited signif...
journal_title:International journal of cancer
pub_type: 杂志文章
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更新日期:1999-06-21 00:00:00
abstract::Photodynamic therapy using 5-aminolevulinic acid (5-ALA)-induced protoporphyrin IX is a promising tool in bladder-cancer therapy. However, little is known about the cellular mechanisms of phototoxicity. Our aim was to characterize the cellular damage and to optimize differential photodynamic effectiveness between tumo...
journal_title:International journal of cancer
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更新日期:2001-06-01 00:00:00
abstract::Target-specific acute myeloid leukemia (AML) immunotherapy requires selective cell-surface antigens on AML blast cells. CD64 is a promising candidate antigen because it is abundantly expressed on monocytoid differentiated AML subtypes. In previous studies, a chemically linked full-length anti-CD64 immunotoxin based on...
journal_title:International journal of cancer
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更新日期:2011-09-01 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910350610
更新日期:1985-06-15 00:00:00
abstract::Cervical mucosal expression of cytokines involved in mediating cellular immunity is believed to influence the persistence of human papillomavirus (HPV) infection, a necessary prerequisite for the development of cervical intraepithelial neoplasia (CIN). Additionally, regulatory T (Treg) cells are increasingly understoo...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
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更新日期:2009-03-15 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910600206
更新日期:1995-01-17 00:00:00
abstract::Studies of the MLTI were performed in a primary MSV-induced tumor system. Reactivity against mitomycin-C-treated RBL-5 cells could be detected during a limited period at about 14 days after virus injection. The degree of reactivity of MSV 14 spleen cells was quite variable; stimulation indices ranged from 2.2 to 9.4. ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910170313
更新日期:1976-03-15 00:00:00
abstract::Tumor cell migration involved in metastases is a tightly regulated, nonrandom process. Chemokines have been identified as critical molecules guiding cell migration. We performed a prospective study to analyze a possible association between the expression of chemokine receptors CXCR3 and CXCR4 by primary melanoma and c...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21269
更新日期:2005-12-10 00:00:00
abstract::Dietary patterns reflect combinations of dietary exposures, and here we examine these in relation to prostate cancer risk. In a case-control study, 80 incident primary prostate cancer cases and 334 urology clinic controls were enrolled from 1997 through 1999 in Kingston, Ontario, Canada. Food-frequency questionnaires ...
journal_title:International journal of cancer
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journal_title:International journal of cancer
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更新日期:2020-04-15 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910350220
更新日期:1985-02-15 00:00:00
abstract::Immunosuppressed patients who develop non-Hodgkin's lymphoma (NHL) have abnormal antibody responses against the Epstein-Barr virus (EBV) prior to the diagnosis of malignancy. To see if this is also true of "spontaneous" cases in the general population, we undertook a collaborative serologic case-control study. From 4 ...
journal_title:International journal of cancer
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更新日期:1991-09-30 00:00:00
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journal_title:International journal of cancer
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更新日期:1998-05-29 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910160504
更新日期:1975-11-15 00:00:00
abstract::Previous studies have shown that macrophage cell lines retained the ability to phagocytize, to secrete lysosomal enzymes, and to function as effector cells in antibody-dependent cellular cytoxicity. In this paper, the cytolytic activity of murine macrophage cell lines against tumor target cells was assessed using an 1...
journal_title:International journal of cancer
pub_type: 杂志文章
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更新日期:1980-07-15 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/(sici)1097-0215(19991126)83:5<635::aid-ijc
更新日期:1999-11-26 00:00:00
abstract::The incidence of testicular cancer was examined in the Nordic and Baltic countries, Poland and Germany by collaboration among 10 cancer registries. Population-based registers were used to analyze a total of 34,309 cases, diagnosed from the start of registration (varying from 1943 in Denmark to 1980 in Latvia and Lithu...
journal_title:International journal of cancer
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abstract::Salvicine is a diterpenoid quinone derived from a traditional Chinese medication that has been shown to possess potent in vitro and in vivo antitumor effects. This compound, which inhibits the activity of Topoisomerase II, was found to equipotently kill various multidrug-resistant tumor cells and their corresponding p...
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