Abstract:
:We show that siRNA-mediated suppression of protein tyrosine phosphatase alpha (PTP alpha) reduces Src activity 2 to 4-fold in breast, colon and other human cancer cell lines. Src and PTP alpha RNAi induced apoptosis in estrogen receptor (ER)-negative breast cancer and colon cancer cells, but not in immortalized noncancerous breast cells, ER-positive breast cancer cells or other cancer cell types tested. RNAi of other Src family members (Fyn and Yes) or of PTP1B, a phosphatase previously suggested to be an activator of Src in breast cancer, had no effect. Although further tests with primary tumor tissues are required, the unexpected correlation between ER status and Src/PTP alpha dependence in breast cancer cell lines may be important for planning therapeutic strategies, and the insensitivity of normal breast cells to the RNAi highlights the potential of PTP alpha, which may be easier to target than Src, as a therapeutic target in ER-negative breast cancer.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Zheng X,Resnick RJ,Shalloway Ddoi
10.1002/ijc.23321subject
Has Abstractpub_date
2008-05-01 00:00:00pages
1999-2007issue
9eissn
0020-7136issn
1097-0215journal_volume
122pub_type
杂志文章abstract::We have investigated the effect of interferon-gamma (IFN-gamma) treatment of neuroblastoma cells on the susceptibility to lysis by lymphokine-activated killer (LAK) cells and examined the participation of cell-adhesion molecules on the target cells in LAK cell lysis. Untreated neuroblastoma cells expressed lymphocyte-...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910470410
更新日期:1991-02-20 00:00:00
abstract::An important feature of cytochrome P450 (CYP) 2B1 is its high ability to convert the prodrug cyclophosphamide (CPA) to therapeutically cytotoxic metabolites, resulting in interstrand DNA-cross-linking and cell death. We have examined whether and how the phosphorylation of CYP2B1 influences CPA metabolic activation in ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1517
更新日期:2001-12-01 00:00:00
abstract::Maspin is a Class II tumor suppressor protein and plays a role in tumor growth by inhibiting cellular invasion and motility. It is a member of the serpin family of protease inhibitors and has been shown to reduce angiogenesis. Maspin gene expression can be upregulated by the tumor suppressor p53. We tested 7 p53-relat...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20766
更新日期:2005-04-20 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
pub_type: 杂志文章
doi:10.1002/ijc.2910490313
更新日期:1991-09-30 00:00:00
abstract::We have analyzed the BRAF locus on chromosome 7q34 with microsatellites for allelic changes and exons 11 and 15 of the BRAF with sequencing for mutations in 50 kidney cancers including 20 papillary, 15 conventional and 15 chromophobe renal cell carcinomas (RCC). Allelic changes at the BRAF locus were seen in 16 of the...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11305
更新日期:2003-10-10 00:00:00
abstract::The purpose of this study was to induce in postnatal life the selective growth of altered hepatocytic populations which had been induced in utero by various chemicals. Pregnant rats of a Wistar strain were given a single dose of various chemical carcinogens on the 18th gestational day. From two months postpartum, both...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910290317
更新日期:1982-03-15 00:00:00
abstract::Altered DNA methylation is often seen in malignant cells, potentially contributing to carcinogenesis by suppressing gene expression. We hypothesized that heritable methylation potential might be a risk factor for breast cancer and evaluated possible association with breast cancer for single nucleotide polymorphisms (S...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/ijc.25786
更新日期:2011-10-01 00:00:00
abstract::We previously reported that some single nucleotide polymorphisms (SNPs) of candidate genes involved in the MTOR complex1 (MTORC1) were associated with risk of gastric cancer (GCa). In the present study, we further evaluated associations of eight potentially functional SNPs of MTOR, MLST8 and RPTOR with survival of 100...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.31656
更新日期:2019-01-15 00:00:00
abstract::Loss of heterozygosity (LOH) at chromosome 3p21 is frequent in cervical cancers. The candidate tumor suppressor gene, RASSF1A located at 3p21.3, is found to be inactivated in several major human cancers, implicating its significance in carcinogenesis. We aimed to investigate the status of RASSF1A in cervical cancers. ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11051
更新日期:2003-06-10 00:00:00
abstract::The International Classification of Childhood Cancer (ICCC) updates the widely used Birch and Marsden classification scheme. ICCC is based on the second edition of the International Classification of Diseases for Oncology (ICD-O-2). The purpose of the new classification is to accommodate important changes in recogniti...
journal_title:International journal of cancer
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0215(19961211)68:6<759::AID-IJC
更新日期:1996-12-11 00:00:00
abstract::The clinical diagnosis of cervical neoplasia by spectroscopic methods is potentially a reliable, fast and cost-effective alternative to the conventional smear test. However, it is currently limited by significant inter-patient variation in the spectroscopic properties of the cervix. Characterisation of suitable in vit...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22517
更新日期:2007-05-01 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::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::Dendritic cells (DC) have gained much interest in the field of anticancer vaccine development because of their central function in immune regulation. However, the clinical application of ex vivo cultured DC has significant disadvantages. A vaccine that targets dendritic cells in vivo and enhances antigen presentation ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23101
更新日期:2008-02-15 00:00:00
abstract::Microarray analysis of paired cultures of normal and cancerous urothelial cells revealed differences in cytokeratin and adhesion gene expression. Normal cells expressed autocrine growth factor genes more strongly whereas carcinoma cells were distinguished by concomitant expression of urothelial and epidermal different...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23893
更新日期:2008-12-15 00:00:00
abstract::Different treatment schedules have been investigated when evaluating the inhibitory effect of 9-(2-phosphonylmethoxyethyl)adenine (PMEA) and 3'-azido-2',3'-dideoxythymidine (AZT) on the replication of human immunodeficiency virus type I (HIV-I) in MT-4 cells, transformation of C3H/3T3 cells by Moloney murine sarcoma v...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910460233
更新日期:1990-08-15 00:00:00
abstract::NK cell recognition of tumor cells is mediated by a delicate balance of signals received by MHC class I-binding inhibitory NK cell receptors and activating NK cell receptors, which mainly bind to virus-, stress- or tumor-induced ligands. In addition, adhesion molecules such as the intercellular adhesion molecule-1 (IC...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25442
更新日期:2011-03-01 00:00:00
abstract::Microspheres containing cisplatin (CDDP) embedded in poly-d,l-lactic acid (PLA) and polyethylene glycol acid (CDDP-PPMS) were developed to improve treatment of malignant effusions. In vitro studies demonstrated that CDDP was released continuously for more than 4 weeks from CDDP-PPMS without initial burst. CDDP-PPMS wa...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980529)76:5<709::aid-ijc
更新日期:1998-05-29 00:00:00
abstract::Interest has increased in the potential role of circulating tumour cells in cancer management. Most cell-based studies have been designed to determine the number of circulating tumour cells in a given volume of blood. Ability to understand the biology of the cancer cells would increase the clinical potential. The purp...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29680
更新日期:2016-01-01 00:00:00
abstract::Our previous study has suggested that the cell cycle-related kinase (CCRK) is a putative candidate oncogene in glioblastoma tumorigenesis. The potential oncogenic role of CCRK and its clinical/prognostic significance, however, in ovarian carcinoma are unclear. In this study, CCRK expression was examined by immunohisto...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.24630
更新日期:2009-12-01 00:00:00
abstract::To investigate the relationship between p16 methylation and Helicobacter pylori infection in precancerous gastric lesions, a population-based study was conducted in Linqu County, a high-risk area of gastric cancer in China. Methylation status of p16 was evaluated by methylation-specific polymerase chain reaction in 92...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23891
更新日期:2009-01-15 00:00:00
abstract::To understand the mechanisms underlying increased expression of Myc protein in human urinary bladder cancer, expression of c-myc mRNA and the copy number of the c-myc gene were determined. Expression of mRNA was measured by quantitative RT-PCR in 40 urothelial carcinomas and in 18 histologically normal mucosae. Mean e...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990420)84:2<169::aid-ijc
更新日期:1999-04-20 00:00:00
abstract::Pesticide exposure has been associated with non-Hodgkin lymphoma (NHL) risk in a number of studies, and two recent studies suggest that the increased risk may be confined to those with a history of asthma. We examined the interaction between occupational pesticide exposure and atopy on risk of NHL in an Australian pop...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22602
更新日期:2007-05-15 00:00:00
abstract::A subgroup of head and neck squamous cell carcinomas (HNSCCs) contains high-risk human papillomavirus-type 16 (HPV16). The viral E6 and E7 oncoproteins inactivate the p53 and pRb proteins, respectively. We examined the causative effect of HPV16 E6 and E7 expression on the immortalization of normal oral keratinocytes (...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25474
更新日期:2011-04-01 00:00:00
abstract::Infection of (C57BL/6 X DBA/2)F1 (BDF1) mice with 2,500 FFU of Friend virus complex (FV) resulted in erythroleukemia followed by recovery, at which time virus could not be detected in the spleens of mice, and with splenomegaly (progressor mice) or without splenomegaly (regressor mice). Progressor and regressor mice de...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910290610
更新日期:1982-06-15 00:00:00
abstract::cis-Diamminedichloroplatinum(II) (CDDP) induced G2-phase arrest in PC-9 human cancer cells. To elucidate how CDDP acts on cell-cycle regulation, we analyzed the effect of CDDP on cell-cycle regulators such as p34cdc2 protein kinase. p34cdc2 protein kinase activity was maximum in G2 phase and decreased after G2/M trans...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910550417
更新日期:1993-10-21 00:00:00
abstract::This large population-based study compared breast-conserving surgery with radiation therapy (BCT) with mastectomy on (long-term) breast cancer-specific (BCSS) and overall survival (OS), and investigated the influence of several prognostic factors. Patients with primary T1-2N0-2M0 breast cancer, diagnosed between 1999 ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.31034
更新日期:2018-01-01 00:00:00
abstract::DNA repair is a complicated biological process, consisting of several distinct pathways, that plays a fundamental role in the maintenance of genomic integrity. The very important field of DNA repair and cancer risk has developed rapidly in the past decades. In this review of selected published data from our laboratory...
journal_title:International journal of cancer
pub_type: 杂志文章,评审
doi:10.1002/ijc.24126
更新日期:2009-03-01 00:00:00
abstract::TK is a pyrimidine metabolic pathway enzyme involved in salvage DNA synthesis. What roles TK may play in epithelial ovarian cancer and the relationships between TK and the other pyrimidine pathway enzymes remain unclear. We examined TK1 gene expression by RT-PCR and related it to gene expression of TS, TP and DPD in 6...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10319
更新日期:2002-05-20 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