Abstract:
:Combination treatment of SKCO1 human colon carcinoma cells with beta ser-interferon (IFN-beta ser) and gamma-interferon (IFN-gamma) results in a synergistic antiproliferative effect. The role of IFN-beta ser and IFN-gamma receptor modulation was investigated as a possible mechanism for this response. IFN-gamma (0.05-50 ng/ml) pretreatment of SKCO1 cells for 24 h decreased specific binding of 125I-IFN-beta ser by 35-60%. Scatchard analysis of binding data obtained following 24-h treatment with 5 ng/ml IFN-gamma showed that this reduction in binding was due to a decreased receptor affinity (control cells, Kd = 46 +/- 1.6 pM; IFN-gamma-treated cells, Kd = 106 +/- 6 pM, n = 2) rather than a significant change in receptor number (receptor number/control cell = 1214 +/- 471, receptor number/IFN-gamma treated cell = 1118 +/- 153, n = 2). In contrast, pretreatment of SKCO1 cells with IFN-beta ser (5 ng/ml) resulted in slight (10-35%) increases in 125I-IFN-gamma-specific binding. Scatchard analysis of binding data obtained following 24-h treatment with 5 ng/ml IFN-beta ser showed a decrease in binding affinity (control cells, Kd = 28 +/- 7 pM; IFN-beta ser-treated cells, Kd = 38 +/- 7 pM, n = 2) and a 32% increase in IFN-gamma receptor sites (receptor number/control cell = 4257 +/- 464, receptor number/IFN-beta ser-treated cell = 5570 +/- 730; n = 2). 125I-IFN-gamma internalization studies performed at 37 degrees C confirmed the cell surface binding assays; IFN-beta ser-treated cells internalized 30-50% more labeled IFN-gamma than untreated cells. However, it is unlikely that differences in binding and internalization of this magnitude play a primary role in the synergistic antiproliferative effect of IFN-gamma with IFN-beta ser in SKCO1 cells. Biochemical modulation at sites distal to the ligand receptor interaction should be investigated.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Schiller JH,Bushmeyer SM,Ruzicka FJ,Princler GL,Faltynek CR,Borden ECsubject
Has Abstractpub_date
1990-01-01 00:00:00pages
26-31issue
1eissn
0008-5472issn
1538-7445journal_volume
50pub_type
杂志文章相关文献
CANCER RESEARCH文献大全abstract::Studies of V79-171 cells were undertaken to determine what extracellular or intracellular derivative of the drug WR-2721 is associated with radioprotection. The effect of preincubation at 23 +/- 1 degree C with WR-2721, and with derivatives of WR-2721 produced in medium containing alkaline phosphatase, upon survival o...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1988-07-01 00:00:00
abstract::We measured serum tumor necrosis factor alpha (TNF) concentrations by a double-antibody radioimmunoassay method, with a detection level of 10 ng/liter, in 32 children with malignancies. Seventeen had acute lymphoblastic leukemia, 4 had acute nonlymphocytic leukemia, and 11 had solid tumors. At the diagnosis of maligna...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1990-02-01 00:00:00
abstract::The effects of tumor-promoting phorbol diesters on ornithine decarboxyalse (ODC) activity and DNA synthesis in normal and chemically transformed hamster embryo fibroblasts (HEF) in culture were studied. Only those phorbol diesters with promoting activity in mouse skin induced ODC in HEF. ODC was induced in both cell t...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1977-11-01 00:00:00
abstract::We examined several parameters of urine excretion during a two-year initiation-promotion experiment in male Fischer rats using four weeks of N-[4-(5-nitro-2-furyl)-2-thiazoly]formamide at 0.2% of the diet as the initiating agent and either 5% sodium saccharin or 2% L-tryptophan in the diet as promoting agents. Rats fe...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1981-01-01 00:00:00
abstract::Mouse C1 line cells are megakaryoblastic cells established by coinfection of Abelson murine leukemia virus and recombinant simian virus 40. We examined the effects of various compounds on growth and differentiation of these cells. Megakaryocytic differentiation of C1 cells was not induced by cytokines that stimulate m...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1991-09-01 00:00:00
abstract::The capacity for tumor cells to metastasize efficiently is directly linked to their ability to colonize secondary sites. Here we identify Six2, a developmental transcription factor, as a critical regulator of a breast cancer stem cell program that enables metastatic colonization. In several triple-negative breast canc...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-18-1791
更新日期:2019-02-15 00:00:00
abstract::The efficiency of tumor induction by oncogenes is influenced by modifier genes that determine individual susceptibility. We have used a transgenic mouse model to examine the role of a candidate susceptibility gene, bcl-2, for development of Raf oncogene-induced lung adenomas. Loss of bcl-2 greatly retarded tumor devel...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2002-11-01 00:00:00
abstract::We have used a quantitative "experimental" metastasis assay in the embryonic chick, an immunodeficient host, to examine in vivo growth properties of ras oncogene-transformed NIH3T3 cells. We found that two independently derived populations of NIH3T3 cells that had been morphologically transformed with the T24 human H-...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1985-12-01 00:00:00
abstract::Cockayne syndrome (CS) patients are deficient in the transcription coupled repair (TCR) subpathway of nucleotide excision repair (NER) but in contrast to xeroderma pigmentosum patients, who have a defect in the global genome repair subpathway of NER, CS patients do not have an elevated cancer incidence. To determine t...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2000-10-15 00:00:00
abstract::We have investigated the ability of tamoxifen to regulate members of the transforming growth factor beta (TGF-beta) family in human breast cancers in vivo. Using immunohistochemical techniques, we find that 3 months of tamoxifen treatment causes a consistent induction of extracellular TGF-beta 1 in breast cancer biops...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1992-08-01 00:00:00
abstract::This study identifies ataxia-telangiectasia mutated (ATM) as a further component of the complex signaling network of radiation-induced DNA damage in nontargeted bystander cells downstream of ataxia-telangiectasia and Rad3-related (ATR) and provides a rationale for molecular targeted modulation of these effects. In dir...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-08-0545
更新日期:2008-09-01 00:00:00
abstract::Monoclonal antibodies (MoAbs) against human osteosarcoma cells were obtained by the fusion of NS/1 mouse myeloma cells with spleen cells from the human osteosarcoma cell line-immunized BALB/c mice. Two hybrid clones were established and designated as 2H10 and 2D3. Both MoAbs reacted strongly with all osteosarcoma tiss...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1988-04-15 00:00:00
abstract::A monoclonal antibody, CSTO-1, has been produced against a stomach adenocarcinoma-associated antigen. The antibody is cytotoxic to stomach, colon, and lung adenocarcinoma lines but is completely noncytotoxic to normal blood elements and leukemic cell lines. The monoclonal antibody reacts with tumor cell membranes in e...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1984-09-01 00:00:00
abstract::Thirty-six wild-caught woodchucks (Marmota monax) were characterized according to sex, weight, trapping locality, liver pathology, and serum or hepatic markers of woodchuck hepatitis virus. Liver subcellular fractions were assayed for microsomal cytochromes P-450, aryl hydrocarbon hydroxylase, glutathione, cytosolic e...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1987-08-01 00:00:00
abstract::Epithelial ovarian cancer comprises three major histological subtypes (serous, mucinous, and endometrioid), and it is becoming clear that the developmental pathways for these subtypes are fundamentally different. In particular, endometrioid ovarian cancers probably arise by the malignant transformation of ectopic endo...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1998-05-15 00:00:00
abstract::Nonmyeloablative hematopoietic cell transplantation can cure patients with hematologic malignancies but has reported limited success against solid tumors. This is possibly because of profound peripheral tolerance mechanisms and/or suboptimal tumor recognition by effector T lymphocytes. We report that in mice developin...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-09-4253
更新日期:2010-05-01 00:00:00
abstract::Melanoma-derived lipoprotein lipase inhibitor (MLPLI) is a factor purified from the conditioned medium of a human melanoma cell line, SEKI, which induced severe cachexia in tumor-bearing nude mice. Amino acid sequencing revealed that the amino-terminal portion was identical to that of leukemia-inhibitory factor (LIF)....
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1991-12-15 00:00:00
abstract::Patients suffering from bone metastases of follicular thyroid carcinoma (FTC) have a poor prognosis because of the lack of effective treatment strategies. The overexpression of epidermal growth factor receptor (EGFR) associated with increased vascularity has been implicated in the pathogenesis of FTC and subsequent bo...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-04-4196
更新日期:2005-06-01 00:00:00
abstract::In a recent study, we showed that the plant alkaloid camptothecin (CPT) and its derivatives 9-nitro-CPT (9NC) and 9-amino-CPT (9AC) inhibit growth of both human melanocytes (MEL cells) and their malignant counterparts, malignant melanoma (BRO) cells in vitro. This growth inhibition was accompanied by an increase in th...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1994-02-01 00:00:00
abstract::Emerging studies indicate that DNA damage in cancer cells triggers antitumor immunity, but its intrinsic regulatory mechanism in breast cancer cells remains poorly understood. Here, we show that ZMYND8 is upregulated and inhibits micronucleus formation and DNA damage in breast cancer cells. Loss of ZMYND8 triggered ac...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-20-1710
更新日期:2020-11-04 00:00:00
abstract::Diethyldithiocarbamate (DDTC) has been shown to inhibit nephrotoxicity induced by cis-platinum (DDP) without inhibition of tumor response in the rat. We report here that DDTC at doses of 25-300 mg/kg inhibits DDP-induced nephrotoxicity and bone marrow toxicity in C57BL/6 X DBA/2F1 (hereafter called B6D2F1) mice, F344 ...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1986-06-01 00:00:00
abstract::The reason for estrogen independence of C3H mouse mammary tumors has been sought in the initial steps of estradiol action. The characteristics of the estrogen receptors were similar to those observed in estrogen-responsive tissues: high affinity and binding specificity, DNA binding and 8S sedimentation constant as sho...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1978-06-01 00:00:00
abstract::Cancer patients and tumor-bearing animals excrete high levels of modified purines and pyrimidines some of which, e.g., N2,N2-dimethylguanosine, can originate only from transfer RNA (tRNA). Until recently, it could not be ascertained whether the high level of excretion of such compounds is due to cell death or specific...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1977-09-01 00:00:00
abstract::Aneuploidy is frequently detected in human cancers and is implicated in carcinogenesis. Pharmacologic targeting of aneuploidy is an attractive therapeutic strategy, as this would preferentially eliminate malignant over normal cells. We previously discovered that CDK2 inhibition causes lung cancer cells with more than ...
journal_title:Cancer research
pub_type: 杂志文章
doi:10.1158/0008-5472.CAN-14-1494
更新日期:2015-05-15 00:00:00
abstract::Genetic differences in metabolism of benzo(a)pyrene (BP) were investigated using cultured epidermal keratinocytes and dermal fibroblasts isolated from four inbred strains of mice: C3H/HeJms and C57BL/6J that are responsive; and DBA/2 and AKR/Jms that are nonresponsive in terms of inducibility of aryl hydrocarbon hydro...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1983-08-01 00:00:00
abstract::Successful antiestrogen treatment in patients with tamoxifen-responsive breast tumors is often followed by an outgrowth of tumors cells that are antiestrogen resistant, implying that estrogen-dependent tumors can become estrogen-independent. In an effect to mimic this progression, we have transfected fibroblast growth...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1993-05-01 00:00:00
abstract::Peripheral blood monocytes were isolated from normal human donors by separation on a continuous Percoll gradient and adherence to yield preparations of blood monocytes with a high degree of purity (greater than 99%). The monocytes were incubated in vitro with medium alone or with multilamellar liposomes that contained...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1983-05-01 00:00:00
abstract::Recombinant human tumor necrosis factor and recombinant human interleukin 2 were administered in a sequential schedule to 30 dogs with a variety of spontaneous neoplasms. Dose escalation of both drugs was performed, and a maximally tolerated dose of recombinant human tumor necrosis factor of 125 mg/m2 i.v. for 3 days,...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::Experimental studies using murine tumor models have demonstrated that potent systemic immunity can be generated using tumor vaccines engineered by gene transfer to secrete certain cytokines. The underlying physiological principle behind these strategies involves the sustained release of high doses of cytokine at the s...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:1993-12-15 00:00:00
abstract::The WWOX (WW domain containing oxidoreductase) gene was recently identified as a candidate tumor suppressor gene at 16q23.3-24.1, a chromosome region that spans the common fragile site FRA16D. To evaluate the potential role of the WWOX gene in esophageal squamous cell carcinomas, we examined 36 tumors for genetic alte...
journal_title:Cancer research
pub_type: 杂志文章
doi:
更新日期:2002-04-15 00:00:00