Abstract:
:Mucin-associated sialylated Lewis antigens are implicated in tumor cell metastasis and are used in several tests for pancreatic cancer. Despite their clinical importance, little is known about the structures of the oligosaccharides of pancreatic cancer mucins or about the regulation of their synthesis or of the synthesis of their protein cores. In this study, we examined the effects of culture at high cell density on the expression of these antigens in the SW1990 human pancreatic cancer cell line. Mucins from cells that were 2.5 weeks post-confluent had increased expression of sialyl-Lewis(a) and Lewis(x) antigens but reduced expression of the DU-PAN-2 antigen (NeuAc alpha2,3Galbeta1,3GlcNAc-Gal-R) when compared to mucins from 1 day post-confluent cells. Sialyl-Lewis antigens differ from the DU-PAN-2 antigen by the presence of an additional fucose. Mucins from 2.5-week cells also had increased binding to lectins specific for fucose, such as AAL and UEAI, with no apparent change in the binding of lectins specific for sialic acids. Metabolically radiolabeled O-linked oligosaccharides with sialyl-Lewis(a) antigenic reactivity eluted from Bio-Gel P-10 in the region of sialylated and sulfated oligosaccharides. Oligosaccharides eluted from QAE-Sephadex (2 mM Tris base) in a pattern suggesting the presence of 1, 2 and 3 or more negative charges per oligosaccharide. Even after desialylation and desulfation, oligosaccharides eluted from Bio-Gel P-10 with apparent molecular sizes greater than glucose oligomers of 12 units. Culture of SW 1990 cells at high density also increased the steady-state levels of mRNA for mucins MUC1, 2, 4, 5 and 6. In summary, after prolonged culture at high cell density, SW1990 cells have qualitative changes in their oligosaccharides that may be due to up-regulation of fucosyltransferases.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Yamashita Y,Ho JJ,Cheng S,Siddiki B,Chung YS,Sowa M,Kim YSdoi
10.1002/(sici)1097-0215(19970729)72:3<457::aid-ijcsubject
Has Abstractpub_date
1997-07-29 00:00:00pages
457-66issue
3eissn
0020-7136issn
1097-0215pii
10.1002/(SICI)1097-0215(19970729)72:3<457::AID-IJCjournal_volume
72pub_type
杂志文章abstract::Carcinomatous meningitis is a devastating metastatic complication of systemic carcinoma, which may occur insidiously, accompanied by a confusing spectrum of clinical symptoms and signs. In the absence of reliable diagnostic tumour markers, the diagnosis is established by the demonstration of malignant cells within the...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910440310
更新日期:1989-09-15 00:00:00
abstract::APC10.1 is a new intestinal cell line derived from ApcMin/+ mice that retains both the heterozygous Apc genotype and a nonactivated Wnt signaling pathway and displays an early neoplastic phenotype. Although tumorigenic both in immunodepressed and in immunocompetent syngeneic mice, it requires a high cell dose and a lo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11690
更新日期:2004-03-20 00:00:00
abstract::A new non peptidic farnesyltransferase inhibitor, RPR-115135, in combination with 5-FU was studied in 10 human colon cancer cell lines (HCT-116, RKO, DLD-1, Colo-320, LoVo, SW-620, HT-29, HCT-15, Colo-205 and KM-12) carrying several mutations but well characterized for p53 and Ras status. We found that there was a sli...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10461
更新日期:2002-07-20 00:00:00
abstract::The relationship between occupation and exposure to several occupational agents and Hodgkin's disease (HD) was investigated in a case-control study of 152 cases and 613 controls with acute diseases admitted to all hospitals in Pordenone province, north-east Italy. Among cases, there was a significant excess of individ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910480608
更新日期:1991-07-30 00:00:00
abstract::Epithelial ovarian cancer is the most lethal gynecological malignancy and the fifth leading cause of cancer deaths in women in the Western world. ETS transcription factors are known to act as positive or negative regulators of the expression of genes that are involved in various biological processes, including those t...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.26148
更新日期:2012-04-01 00:00:00
abstract::Cancer survival among people with AIDS (PWA) has been described in developed countries, but there is lack of data from developing countries. The aim of this study was to evaluate survival after cancer diagnosis in PWA and compare it with people without AIDS (non-PWA) in São Paulo, Brazil. A probabilistic record linkag...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.31081
更新日期:2018-02-01 00:00:00
abstract::A panel of human breast cancer specimens was examined for single base change mutations by DNA sequencing and for larger deletions using a PCR-based assay. In the cancer specimens examined, no sequencing variants were detected other than a previously characterized polymorphism. Although most of the specimens contained ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(20001015)88:2<209::aid-ijc10>3.0
更新日期:2000-10-15 00:00:00
abstract::Germline mutation of the folliculin gene (BHD) at chromosome 17p11.2 is associated with the development of multiplex hamartomas of the hair follicles, chromophobe renal cell carcinomas (RCC) and renal oncocytomas (RO). We have analyzed the folliculin gene with sequencing for mutations and the chromosome 17p11.2 with m...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11694
更新日期:2004-04-10 00:00:00
abstract::Common genetic variations in genes involved in DNA repair or response to genotoxic stress may influence both cancer susceptibility and treatment response individually or interactively. However, in acute myeloid leukemia (AML), the relevance of these genetic variations remains to be fully established. In this study, we...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25318
更新日期:2011-01-01 00:00:00
abstract::Recently, pegylated arginine deiminase (ADI; EC 3.5.3.6) has been used to treat the patients with hepatocellular carcinoma or melanoma, in which the level of argininosuccinate synthetase (ASS) activity is low or undetectable. The efficacy of its antitumor activity largely depends on the level of intracellular ASS, whi...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22322
更新日期:2007-02-15 00:00:00
abstract::The Raf murine sarcoma viral oncogene homolog B (BRAFV600E ) mutation (MT) in metastatic colorectal cancer (CRC) is a well-known prognostic indicator and a negative predictive biomarker for antiepidermal growth factor receptor (EGFR) treatment. However, the clinical characteristics and significance of BRAFnon-V600E MT...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32320
更新日期:2019-11-01 00:00:00
abstract::Southern blot analyses of surgical specimens of cervical carcinoma from Japanese patients showed that 3/9 samples contained human papillomavirus (HPV) type-16 DNA sequences, and 2 contained HPV type-18 DNA sequences. By Northern blot analyses, RNA transcripts of HPV DNA sequences were demonstrated in some of the tissu...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910370405
更新日期:1986-04-15 00:00:00
abstract::A panel of 24 healthy seropositive donors have been followed prospectively over a period of 15 months and monitored (1) for the level of EB virus shedding in the throat by means of a sensitive cord-blood transformation assay; (2) for the level of virus-infected B cells in the blood via a new in vitro protocol where "s...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910350107
更新日期:1985-01-15 00:00:00
abstract::Vaccination against oncogenic human papillomavirus (HPV) types is one key intervention for cervical cancer prevention. This follow-up study assessed the persistence of the systemic and mucosal immune responses together with the safety profile of the HPV-16/18 AS04-adjuvanted vaccine administered to young women aged 10...
journal_title:International journal of cancer
pub_type: 杂志文章,随机对照试验
doi:10.1002/ijc.25887
更新日期:2011-11-01 00:00:00
abstract::V-ATPases are proton-translocating enzymes, which are found not only in numerous intracellular organelles but also in the plasma membranes of many eukaryotic cells. Using differential display, we have identified one of the proton pump subunit genes, ATP6C, as a cisplatin-inducible gene. Northern blot analysis demonstr...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1418
更新日期:2001-09-01 00:00:00
abstract::To understand specific interactions between stromal cells and epithelial cells in benign prostatic hyperplasia (BPH) and prostatic adenocarcinoma, we developed stromal-cell cultures from normal human prostate (PNX) and BPH (BH101), composed of fibroblasts and myofibroblasts. Their role in epithelial-cell growth was st...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19961009)68:2<207::AID-IJC
更新日期:1996-10-09 00:00:00
abstract::The role of age at menarche and at menopause on epithelial ovarian cancer risk was re-assessed in a combined analysis of 3 hospital-based case-control studies conducted in Italy, the United Kingdom and Greece, which produced a total of 1,140 cases and 2,724 controls. In the overall dataset, there was no evidence of an...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910490111
更新日期:1991-08-19 00:00:00
abstract::Cancers occurring at the gastroesophageal junction (GEJ) are classified as predominantly esophageal or gastric, which is often difficult to decipher. We hypothesized that the transcriptomic profile might reveal molecular subgroups which could help to define the tumor origin and behavior beyond anatomical location. The...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32384
更新日期:2019-12-15 00:00:00
abstract::The relationship between the biomarker of vitamin D status, 25(OH)D, and the risk for colorectal neoplasia is suggestive but equivocal. Questions remain regarding whether there are differential associations between 25(OH)D and colorectal adenoma by gender, colorectal subsite or features of baseline and recurrent adeno...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28316
更新日期:2013-12-15 00:00:00
abstract::Evidence suggests that the majority of lung cancer patients have tumour-derived genetic alterations in circulating plasma DNA, and that this may be developed as a diagnostic tool. To this end, we have studied 60 individuals attending bronchoscopy clinic, with symptoms suspicious of lung cancer, for genetic alterations...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(200002)9999:9999<::aid-ijc1058>3
更新日期:2001-02-01 00:00:00
abstract::In previous studies, the antigen CSH-275 (RTNKEASIC) was found expressed in tissue specimens from colorectal cancer but not in normal colonic mucosa. It was also naturally expressed in the DHD-K12 experimental colorectal cancer in BDIX rats. In this study, we describe the effect of vaccination with the synthetic nonap...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20063
更新日期:2004-05-20 00:00:00
abstract::Oral leukoplakia is a heterogeneous lesion with risk of cancer development; there are no biomarkers to predict its potential of malignant transformation. Tissue proteomic analysis of oral leukoplakia using iTRAQ labeling liquid chromatography-mass spectrometry showed overexpression of heterogeneous ribonucleoprotein K...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.24517
更新日期:2009-09-15 00:00:00
abstract::The active form of vitamin D(3), 1,25-dihydroxyvitamin D(3) (1,25(OH)(2)D(3)), induces caspase-independent apoptosis in MCF-7 and T47D breast cancer cells. Before the appearance of apoptotic cells at Day 4 after the addition of 1,25(OH)(2)D(3), the MCF-7 cells are sensitized to the caspase-mediated apoptosis induced b...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1325
更新日期:2001-07-15 00:00:00
abstract::In this study, a cell-penetrating peptide, the transactivating transcriptional factor (TAT) domain from HIV, was linked to a chitosan/doxorubicin (chitosan/DOX) conjugate to form a chitosan/DOX/TAT hybrid. The synthesized chitosan/DOX/TAT conjugate showed a different intracellular distribution pattern from a conjugate...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25578
更新日期:2011-05-15 00:00:00
abstract::We transduced a human gastric carcinoma cell line, HR, with the interleukin 2 (IL-2) gene. Stable HR transfectants secreted nanogram quantities of biologically active IL-2 and had significantly increased expression of IL-2 mRNA relative to that in parental cells. Expression of intracellular IL-2 protein was not quanti...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970703)72:1<174::aid-ijc
更新日期:1997-07-03 00:00:00
abstract::It has been proposed that oxidative stress develops in tumors, with important consequences for growth and progression. To investigate this hypothesis, we measured low m.w. thiols, disulfides, protein-mixed disulfides and a pool of major anti-oxidant enzymes in renal-cortex as well as renal-cell carcinoma (RCC) specime...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(20010101)91:1<55::aid-ijc1006>3.
更新日期:2001-01-01 00:00:00
abstract::The modifying effects of a Kunitz trypsin inhibitor (KTI) and a Bowman-Birk trypsin inhibitor (BBI), purified from soybean trypsin inhibitor, as dietary supplements on experimental and spontaneous pulmonary metastasis of murine Lewis lung carcinoma 3LL cells as well as peritoneal disseminated metastasis model in human...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20430
更新日期:2004-11-10 00:00:00
abstract::Ninety-seven Japanese patients with so-called primary non-Hodgkin's lymphoma of the central nervous system (CNS-NHL), unrelated to the acquired immunodeficiency syndrome (AIDS) or organ transplantation, were reviewed. The patients' ages ranged from 1 to 87 years (median: 58 years) with a male to female ratio of 1.77:1...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910450410
更新日期:1990-04-15 00:00:00
abstract::Since most intracellular proteins are expressed with their ligands, ligands of cancer-testis (CT) antigens may also be CT in their distribution. Applying Sperm protein 17 (Sp17) as the bait in a yeast 2-hybrid system of a testicular cDNA library, 17 interacting clones were isolated and all encoded Ropporin, a spermato...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22842
更新日期:2007-10-01 00:00:00
abstract::The high recurrence rate of bladder cancer is probably due to an efficient repopulation of the bladder by residual transformed cells after resection of the tumour. However, the regenerating capacity of the normal urothelial cells is very high. To study the balance between regenerating normal urothelium and out-growth ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910600523
更新日期:1995-03-03 00:00:00