Abstract:
:Human breast carcinoma MCF-7/AdrVp cells display a novel multidrug resistance phenotype that is characterized by the overexpression of a 95-kDa membrane glycoprotein (p95) and by marked reduction in intracellular anthracycline accumulation, without overexpression of P-glycoprotein or the multidrug resistance protein MRP. p95 is also highly expressed in multidrug-resistant NCI-H1688 cells derived from a human small cell lung carcinoma. Deglycoslyated p95 from NCI-H1688 cells was isolated by two-dimensional gel electrophoresis and then digested with trypsin. The tryptic peptides were analyzed by mass spectrometry and microsequencing. These analyses identified p95 to be identical to NCA-90, the nonspecific cross-reacting antigen related to the carcinoembryonic antigen (CEA). Further confirmation that p95 is indeed NCA-90 was obtained by Northern and Western blot studies using probes or antibodies specific for p95, NCA-90, or CEA family members. Western blot studies also revealed that CEA itself is overexpressed in MCF-7/AdrVp cells compared to parental MCF-7/W cells. The enforced expression of NCA-90 protein in HeLa cells stably transfected with NCA-90 cDNA did not result in increased resistance of the transfected cells to daunorubicin or a decrease in daunorubicin accumulation in the transfected cells compared to cells transfected only with the expression vector. However, a recent report by H. Kawaharata et al. (Int. J. Cancer, 72: 377-382, 1997) of diminished accumulation, retention, and cytotoxicity of doxorubicin in EJNIH3T3 cells in which enforced expression of CEA was accomplished leaves open the possibility that the overexpression of CEA, possibly in combination with that of NCA-90, could account at least in part for the drug resistant phenotype displayed by MCF-7/AdrVp cells.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Ross DD,Gao Y,Yang W,Leszyk J,Shively J,Doyle LAsubject
Has Abstractpub_date
1997-12-15 00:00:00pages
5460-4issue
24eissn
0008-5472issn
1538-7445journal_volume
57pub_type
杂志文章相关文献
CANCER RESEARCH文献大全abstract::The binding of tritium-labeled 5-methylchrysene to DNA of CD-1 mouse skin 24 hr after treatment has been studied. DNA was isolated from the treated skin areas of mice and hydrolyzed enzymatically to deoxyribonucleosides, and the hydrolysate was chromatographed on a Sephadex LH-20 column using a methanol:water gradient...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1982-04-01 00:00:00
abstract::Photodynamic therapy (PDT) clinical results are promising; however, tumor recurrences can occur and, therefore, methods for improving treatment efficacy are needed. PDT elicits direct tumor cell death and microvascular injury as well as expression of angiogenic, inflammatory, and prosurvival molecules. Preclinical stu...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.can-04-0071
更新日期:2004-04-01 00:00:00
abstract::Avian erythroblastosis virus strain R (AEV)-transformed, cloned erythroleukemia cells from three different ages of SC strain chickens were analyzed before and after differentiation induced by 1.0 mM butyric acid for expression of chicken fetal antigens (CFAs) and chicken adult antigens (CAAs) and for hemoglobin expres...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1982-11-01 00:00:00
abstract::Aberrant FLT3 expression and/or mutation plays a significant role in leukemogenesis. This has prompted the development of selective small molecule tyrosine kinase inhibitors against FLT3. However, like most tyrosine kinase inhibitors, those against FLT3 are not completely specific and at the doses required to complete...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-04-3081
更新日期:2005-02-15 00:00:00
abstract::A common single nucleotide polymorphism (SNP), rs6983267, at 8q24.21 has recently been shown to associate with colorectal cancer (CRC). Three independent SNP association studies showed that rs6983267 contributes to CRC with odds ratios (OR) of 1.17 to 1.22. Here, we genotyped a population-based series of 1,042 patient...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-07-5766
更新日期:2008-01-01 00:00:00
abstract::Apoptosis is a critical early cellular event in the development of polycystic kidney disease (PKD) in humans and mice. In the SBM transgenic model of PKD, both apoptosis and proliferation are c-myc driven and are independent of p53 and Bcl-2 pathways. On the basis of recent evidence implicating the FasL/Fas pathway in...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2002-04-15 00:00:00
abstract::Studies were undertaken to determine the therapeutic effects of liposome-encapsulated 1-beta-D-arabinofuranosylcytosine (lip-ara-C) against intracranial L1210 leukemia. The effects of administration route, drug dosage, liposome type, and tumor load on therapeutic efficacy were also studied. One hundred % mice were cur...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1989-09-15 00:00:00
abstract::In 2002, the National Cancer Institute created the Initiative for Chemical Genetics (ICG), to enable public research using small molecules to accelerate the discovery of cancer-relevant small-molecule probes. The ICG is a public-access research facility consisting of a tightly integrated team of synthetic and analytic...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-06-2552
更新日期:2006-09-15 00:00:00
abstract::The altered gene expression seen in cancer could relate to differences in nonhistone chromatin proteins between normal and malignant tumor cells. Phenol-soluble nonhistone chromatin proteins were isolated from human normal and leukemic (chronic lymphocytic leukemia) B-cells, as well as long-term cultured human B-lymph...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1984-05-01 00:00:00
abstract::Proline is a readily released stress substrate that can be metabolized by proline oxidase (POX) to generate either reactive oxygen species (ROS) to induce apoptosis or autophagy or ATP during times of nutrient stress. However, the contribution of proline metabolism to tumorigenesis in hypoxic microenvironments has not...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-12-0080
更新日期:2012-07-15 00:00:00
abstract::We previously reported that bone marrows of breast cancer patients contained tumor antigen-specific CD8(+) T cells with central or effector memory phenotype. Using a recently developed ret transgenic mouse melanoma model, we now show that bone marrows and tumors of transgenic mice contain high frequencies of CD8(+) T ...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-08-1464
更新日期:2008-11-15 00:00:00
abstract::Kaposi's sarcoma (KS) is the signature pathology of AIDS. KS-associated herpesvirus (KSHV/HHV-8) is causally linked to KS. Here, we report the first complete profile of KSHV transcription in primary KS lesions using a novel, real-time PCR array. The KSHV latency I mRNAs [latency-associated nuclear antigen (LANA)/orf73...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2003-05-01 00:00:00
abstract::We have measured the 31P nuclear magnetic resonance spectra of EMT6/Ro multicellular tumor spheroids over a wide range of sizes under constant nutrient conditions which matched those used for culturing the spheroids. The amount of nucleotide triphosphate per cell decreased with spheroid growth, roughly in proportion t...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1991-08-01 00:00:00
abstract::Vinyl chloride (VC) induces angiosarcomas of the liver (ASL) and hepatocellular carcinomas (HCCs) in humans and rodents. We examined the presence of p53 gene mutations in ASL and HCC induced by VC in Sprague Dawley rats; 25 ASL and eight HCCs were analyzed for point mutations in exons 5-8, using PCR amplification, sin...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1997-05-01 00:00:00
abstract::Interactions between connective tissue substrates and proteinases localized to the surface of cancer cells are implicated in cancer invasion. In this report we have compared the enrichment of collagen and gelatin degrading activities and cysteine proteinase(s) in well-characterized (enzyme markers and electron microsc...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1987-03-15 00:00:00
abstract::The flux activities of de novo and salvage purine synthesis were compared in rat hepatoma 3924A cells in various growth phases. The initial rate assays of [14C]adenine, [14C]hypoxanthine, and [14C]guanine incorporation yielded Michaelis-Menten kinetics with Kms of 5, 7, and 7 microM, respectively. After replating plat...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::The majority of BRCA1-associated breast cancers are basal cell-like, which is associated with a poor outcome. Using a spontaneous mouse mammary tumor model, we show that platinum compounds, which generate DNA breaks during the repair process, are more effective than doxorubicin in Brca1/p53-mutated tumors. At 0.5 mg/k...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-07-5480
更新日期:2008-05-01 00:00:00
abstract::The C3H/10T1/2 CL8 cell line (10T1/2) is being widely used as a quantitative assay system for chemical and physical carcinogens. 10T1/2 cells, but not their transformed counterparts, exhibit a decreased final saturation density with decreasing serum concentration. Exposure of carcinogen-treated cultures to 5% serum 8 ...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1977-02-01 00:00:00
abstract::KAI1 (CD82) belongs to the transmembrane 4 superfamily in which members have inhibitory effects on tumor cell motility and metastasis. During reverse transcription-PCR analysis, we found a splice variant of KAI1 (spliced-KAI1) in which exon 7 was deleted. This exon encodes the 28 amino acids that span from the distal ...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2003-11-01 00:00:00
abstract::The alpha(v)beta(3) integrin is expressed on proliferating endothelial cells such as those present in growing tumors, as well as on tumor cells of various origin. Tumor-induced angiogenesis can be blocked in vivo by antagonizing the alpha(v)beta(3) integrin with small peptides containing the Arg-Gly-Asp (RGD) amino ac...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2002-11-01 00:00:00
abstract::As previously reported for natural killer (NK) cells of normal individuals, prior incubation of peripheral blood lymphocytes from cancer patients with human normal serum or monomeric immunoglobulin G reduced their subsequent capacity to kill K562 target cells in a 4-h 51Cr release assay. The NK activity of such treate...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1988-05-01 00:00:00
abstract::Approximately 10% of gastric adenocarcinomas worldwide are associated with human EBV. These carcinomas generally do not express the latent membrane protein 1 (LMP1), the major known EBV oncogene. Recently, another EBV gene [ie., BARF1 (BamHI A rightward open reading frame)] was shown to have transforming and immortali...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2000-05-15 00:00:00
abstract::Melanomas harboring BRAF mutations can be treated with BRAF inhibitors (BRAFi), but responses are varied and tumor recurrence is inevitable. Here we used an integrative approach of experimentation and mathematical flux balance analyses in BRAF-mutated melanoma cells to discover that elevated antioxidant capacity is li...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-19-3588
更新日期:2020-10-15 00:00:00
abstract::We have developed a new strain of rats (resistant rat) which exhibit resistance against the carcinogenic action of several carcinogenic compounds. In the present study, we compared the ability of resistant rat liver to activate 3'-methyl-4-dimethylaminoazobenzene and 2-acetylaminofluorene to highly reactive metabolite...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1989-10-01 00:00:00
abstract::Phase I evaluation of spiromustine was performed using an every-3-week schedule and a weekly X 3 schedule. Neurotoxicity was the dose-limiting toxicity presenting as alterations in cortical integrative functions (orientation, language, coordination), leading to a decrease in the level of consciousness. Traditional cri...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1987-08-01 00:00:00
abstract::beta-Lapachone and certain of its derivatives directly bind and inhibit topoisomerase I (Topo I) DNA unwinding activity and form DNA-Topo I complexes, which are not resolvable by SDS-K+ assays. We show that beta-lapachone can induce apoptosis in certain cells, such as in human promyelocytic leukemia (HL-60) and human ...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1995-09-01 00:00:00
abstract::Specific immunity to Rous virus-induced sarcoma (RSL) was investigated by the tube leukocyte adherence inhibition (LAI) assay in rats immunized with Bacillus Calmette-Guérin (BCG). Peritoneal cells from Lewis rats immunized s.c. with BCG gave positive reactions in the tube LAI assay with the antigen prepared from RSL ...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1979-02-01 00:00:00
abstract::We have shown previously that hepatocyte growth factor (HGF), which is produced by lung fibroblasts, is a potent mitogen and motogen for both normal and neoplastic bronchial epithelium, and that expression of the HGF receptor, the c-met proto-oncogene protein, is uniformly found in the human bronchial epithelium and i...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1997-02-01 00:00:00
abstract::Normal, viral transformed and tumor-derived cells grown in tissue culture and representing different species were tested for their ability to produce an extracellular tumor angiogenesis factor (TAF). TAF was assayed by measuring the host-mediated vascular response of the chorioallantoic membrane to TAF preparations. A...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::An approach to stimulating an immune response against tumors is to transduce tumor cells with bacterial genes, which represent a "danger signal" and can induce a wide immune response. Mycobacterium tuberculosis genes and their encoded proteins play a pivotal role in linking innate and cell-mediated adaptive immunity a...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2000-07-15 00:00:00