Abstract:
:The human MUC1 gene expresses at least 2 type 1 membrane proteins: MUC1/REP, a polymorphic high m.w. MUC1 glycoprotein often highly expressed in breast cancer tissues and containing a variable number of tandem 20 amino acid repeat units, and the MUC1/Y protein, which lacks this repeat array and, therefore, is not polymorphic. Despite their documented importance in signal transduction processes, the relative expression of the 2 isoforms in epithelial tumors is unknown. Using antibody reagents which recognize different MUC1 domains, the expression of these isoforms in malignant epithelial cells has been evaluated. A comparison of the amounts of the 2 isoforms revealed preferential expression of the novel MUC1/Y protein in breast cancer tissue samples. Furthermore, although the MUC1/REP protein is almost undetectable in HeLa cervical adenocarcinoma epithelial cells, the MUC1/Y isoform is extensively expressed in these cells. The presence of the MUC1/Y sequence as well as that of an additional tandem-repeat-array-lacking isoform, designated MUC1/X, were demonstrated by reverse transcriptase PCR amplification of RNA extracted from HeLa and ovarian carcinoma cells. It has been shown previously that the MUC1 cytoplasmic domain interacts with the SH2 domain containing GRB2 protein, which transduces signals to ras, a protein which in its activated form can lead to cell transformation. We present here data demonstrating that MUC1/Y isoform expression increases the tumorigenic potential of DA3 mouse mammary epithelial cells; in contrast, potentiation of tumorigenicity is not observed with MUC1/REP expression. Our studies thus demonstrate that expression of the MUC1 gene in epithelial tumors can give rise to substantial levels of MUC1 proteins devoid of the tandem repeat array, which are generated by alternative splicing mechanisms.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Baruch A,Hartmann M,Zrihan-Licht S,Greenstein S,Burstein M,Keydar I,Weiss M,Smorodinsky N,Wreschner DHdoi
10.1002/(sici)1097-0215(19970529)71:5<741::aid-ijcsubject
Has Abstractpub_date
1997-05-29 00:00:00pages
741-9issue
5eissn
0020-7136issn
1097-0215pii
10.1002/(SICI)1097-0215(19970529)71:5<741::AID-IJCjournal_volume
71pub_type
杂志文章abstract::Resistance to anticancer drugs is the major problem in the treatment of many advanced cancers, including androgen-independent prostate cancer. Recently, increased expression of Id-1, a basic helix-loop-helix protein, is reported in several types of advanced cancer. It is suggested that high expression of Id-1 may prov...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21592
更新日期:2006-04-15 00:00:00
abstract::A significant proportion of screen-detected men with prostate cancer is likely to be overtreated, especially in older age groups. We aim to find which groups of screen-detected older men (65+) benefit the most from Immediate Radical Treatment or Active Surveillance (AS) for prostate cancer, depending on age, screening...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29976
更新日期:2016-05-15 00:00:00
abstract::Pancreatic ductal adenocarcinoma is among the top 10 causes of death from cancer in industrialized countries. In comparison with other gastrointestinal malignancies, pancreatic cancer is one of the tumors most resistant to chemotherapy. An important mechanism of tumor multidrug resistance is increased drug efflux medi...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20831
更新日期:2005-06-20 00:00:00
abstract::Sister chromatid exchange (SCE) is a genetic indicator of DNA damage in mammalian cells and may afford a sensitive monitor to follow genomic instability of some individuals with fragile chromosomal diseases or malignancies. In studies on the effect of dinitrosopiperazine (DNP), aflatoxin B1 (AFB1), methyl-nitro-nitros...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910430413
更新日期:1989-04-15 00:00:00
abstract::Human oocytes in different stages of maturation were obtained by follicular aspiration from women given Clomovid and Gonadex. Particles similar to type-C virus were observed in three out of 16 oocytes. The particles were irregularly distributed along the oocyte membrane. They were seen both in a state of budding and l...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910280504
更新日期:1981-11-15 00:00:00
abstract::Epidemiological evidence suggests that intake of folate and other B-vitamins and genetic variants in the one-carbon metabolism pathway could influence the risk of breast cancer. Previous studies have focused on 2 polymorphisms in the methylenetetrahydrofolate gene (MTHFR A222V and E429A); however, findings are inconcl...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22604
更新日期:2007-06-15 00:00:00
abstract::The poly(ADP-ribose) polymerases (PARP) play important roles in repairing damaged DNA during intrinsic cell death. We recently linked PARP-1 to death receptor (DR)-activated extrinsic apoptosis, the present studies sought to elucidate the function of cytoplasmic PARP-1 in pancreatic cancer tumorigenesis and therapy. U...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32108
更新日期:2019-07-15 00:00:00
abstract::The influence of polyunsaturated fatty acids (PUFAs) on risk of colorectal cancer precursors remains largely unknown. We examined the associations of erythrocyte PUFAs, including n-3 and n-6 PUFAs, with risk of colorectal conventional adenomas and serrated polyps in 4517 participants from three US prospective cohorts ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33190
更新日期:2021-01-01 00:00:00
abstract::Hereditary non-polyposis colorectal cancer, HNPCC, is an autosomal dominant condition predisposing to cancers of primarily the colorectum and the endometrium. The aim of our study was to identify persons at a high risk of hereditary colorectal cancer and to estimate their risk of colon and other HNPCC-associated tumou...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(200002)9999:9999<::aid-ijc1093>3
更新日期:2001-02-15 00:00:00
abstract::Identification of loss of heterozygosity on specific genetic loci is crucial for understanding the pathogenesis of prostate cancer at the molecular level. This is especially important because the deleted regions may contain putative tumor suppressor genes. Chromosome 3p loss appears to be frequently associated with va...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970328)71:1<20::aid-ijc5
更新日期:1997-03-28 00:00:00
abstract::Dietary information from a case-control study of pancreatic cancer conducted in Metropolitan Toronto between 1983 and 1986 is reported. A total of 249 cases and 505 population-based controls completed quantitative diet histories from which total caloric intake and the intake of a number of nutrients were estimated. A ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910450405
更新日期:1990-04-15 00:00:00
abstract::Previous studies indicate that the triterpene glycoside actein from the herb black cohosh inhibits growth of human breast cancer cells. This study seeks to identify genes altered in human breast cancer cells by treatment with actein, using gene expression analysis. We treated MDA-MB-453 human breast cancer cells with ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22897
更新日期:2007-11-01 00:00:00
abstract::The role of plasma oxidant-antioxidant status in survival after breast cancer surgery was investigated in a cohort of patients (n = 363) hospitalized in Southern France between 1989 and 1992. The median follow-up was 8 years after surgery for histologically confirmed breast cancer. Plasma analyses were performed after...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10099
更新日期:2002-02-10 00:00:00
abstract::Premature chromosome condensation (PCC) was studied in direct preparations of tissues from patients with haematological diseases and carcinomas of various histological types. PCC was found in 6 out of 166 malignancies (128 haematological cases, 35 carcinomas and 3 malignant effusions) analysed with the GTG-technique. ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910360602
更新日期:1985-12-15 00:00:00
abstract::This report describes maternal and perinatal risk factors for Wilms' tumor analyzed in a case-control study nested in a nationwide cohort in Sweden. The Swedish National Cancer Registry ascertained 110 cases from among successive birth cohorts from 1973 through 1984, identified by the Swedish Medical Birth Registry, t...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910510108
更新日期:1992-04-22 00:00:00
abstract::Dichlorodiphenyltrichloroethane (p,p'-DDT), an organochlorine pesticide known to have deleterious health effects in humans, has been linked to hepatocellular carcinoma (HCC) in rodents. A recent study has reported that p,p'-DDT and its most persistent metabolite, dichlorodiphenyldichloroethylene (p,p'-DDE), may also b...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.27459
更新日期:2012-11-01 00:00:00
abstract::The radiosensitivity of three forms of response to injection of C. parvum in mice has been investigated. The increase in phagocytin index evoked by IP or IV injection of 0.7 mg C. parvum (but not that evoked by 1.4 mg) was reduced but not abolished in mice given 350-500 rad whole-body irradiation 4 days before C. parv...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910170515
更新日期:1976-05-15 00:00:00
abstract::Marfe, G., Pucci, B., De Martino, L., Fiorito, F., Di Stefano, C., Indelicato, M., Aventaggiato, M., Russo, M. A. and Tafani, M. (2009), Heat-shock pretreatment inhibits sorbitol-induced apoptosis in K562, U937 and HeLa cells. Int. J. Cancer, 125: 2077-2085. doi: 10.1002/ijc.24572 The above article, published online o...
journal_title:International journal of cancer
pub_type: 撤回出版物
doi:10.1002/ijc.32281
更新日期:2019-08-15 00:00:00
abstract::Breast cancer (BC) is the leading cause of cancer in sub-Saharan Africa (SSA) with rapidly increasing incidence rates reported in Uganda and Zimbabwe. However, the magnitude of these rising trends in premenopausal and postmenopausal women is unknown in most African countries. We used data from the African Cancer Regis...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33014
更新日期:2020-10-15 00:00:00
abstract::Retinoids modulate several cell functions and especially inhibit the growth of a wide variety of cells including breast cancer. Retinoic acid receptor-gamma (RAR-gamma) has been shown to mediate the antiproliferative activity of retinoids. To further test this hypothesis we examined the effects of different RAR-gamma ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970502)71:3<497::aid-ijc
更新日期:1997-05-02 00:00:00
abstract::Second-line ipilimumab has been publicly funded in Ontario for metastatic melanoma (MM) since September 2012. We examined real-world toxicity of second-line ipilimumab compared to standard second-line treatments prior to funding. MM patients who received systemic treatment from April 2005 to March 2015 were included. ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33357
更新日期:2020-10-26 00:00:00
abstract::To examine the immunological mechanisms involved in cancer gene therapy using the herpes simplex virus thymidine kinase (HSV-tk) gene and ganciclovir (GCV), murine hepatocellular carcinoma (HCC) cells, BNL1ME A.7R.1, were transduced retrovirally with the HSV-tk gene. HSV-tk-transduced cells exhibited a more than 2,000...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19991029)83:3<374::aid-ijc
更新日期:1999-10-29 00:00:00
abstract::Cancer stem cells (CSCs) are considered as responsible for initiation, maintenance and recurrence of solid tumors, thus representing the key for tumor eradication. The antitumor activity of extracellular vesicles (EVs) derived from different stem cell sources has been investigated with conflicting results. In our stud...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32925
更新日期:2020-09-15 00:00:00
abstract::The natural history of human T-lymphotropic virus type I (HTLV-I) has been shown to differ markedly by geographic area. The differences include contrasting patterns of risk of adult T-cell lymphoma (ATL) and HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP), which may be due in part to differences in...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.24012
更新日期:2009-02-01 00:00:00
abstract::An important method for silencing tumor suppressor genes in cancers is by aberrant methylation (referred to as methylation) of CpG islands in gene promoter regions. In lung cancer, methylation of the genes retinoic acid receptor beta-2 (RARbeta-2), CDH13 (H-cadherin), p16(INK4a) (p16), RASSF1A (RAS association domain ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11458
更新日期:2003-11-20 00:00:00
abstract::Kaposi's sarcoma (KS) is a frequent complication of the acquired immunodeficiency syndrome (AIDS) in homosexual men. Risk factors for developing this malignancy are uncertain, other than immunosuppression and coinfection with human herpesvirus 8 (HHV-8). We therefore examined factors associated with KS in a cross-sect...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20887
更新日期:2005-06-10 00:00:00
abstract::Angiogenesis, a critical driver of tumor development, is controlled by interconnected signaling pathways. Vascular endothelial growth factor receptor (VEGFR) 2 and tyrosine kinase with immunoglobulin and epidermal growth factor homology domain 2 play crucial roles in the biology of normal and tumor vasculature. Regora...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25864
更新日期:2011-07-01 00:00:00
abstract::A triazene-xenogenized tumor sub-line was derived from the mouse mastocytoma cell line P815 following several transplant generations in vivo on DTIC. The highly immunogenic P815/DTIC variant line expressed new CTL-defined antigens. Novel antigens were also detected by antibodies in immunoprecipitation and by Western b...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910550227
更新日期:1993-09-09 00:00:00
abstract::Breast carcinomas were examined by the immunoperoxidase technique using antisera specific for lymphocyte subsets, monocytes, NK cells and major histocompatibility antigens (HLA-A, -B, -C; Ia-like). Sixty-four per cent of the patients had a moderate or strong mononuclear cell infiltration, 77% of the patients without m...
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::Actin, a highly conserved protein comprising cell stress fibers and other cellular structures, is found in both the cytoplasm and nucleus of cells and responds to both epigenetic signals and altered gene expression occurring during tumorigenesis. We have previously shown that changes in the cytoplasmic F- and G-actin ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970207)70:4<423::aid-ijc
更新日期:1997-02-07 00:00:00