Abstract：
:Intracarotid infusion of bradykinin selectively increases the delivery of compounds into brain tumors. This study sought to determine the role of cyclic GMP in increased permeability across the blood-tumor barrier (BTB) after infusion of bradykinin. In permeability studies, 186 Wistar rats with RG2 gliomas and C6 gliomas were used. Transport across the BTB was quantified by autoradiography and reported as a unidirectional transport, Ki, for [14C]dextran (Mr 70,000) and [14C]aminoisobutyric acid (Mr 103,000), with or without inhibition of cyclic GMP-specific phosphodiesterase or soluble guanylate cyclase. We also determined cyclic GMP levels in tumors and normal brain, with or without intracarotid bradykinin infusion, using RIA. Intracarotid infusion of bradykinin selectively increased permeability in RG2 tumors and C6 tumors for both tracers. Simultaneous infusion of bradykinin and a cyclic GMP-specific phosphodiesterase inhibitor, zaprinast (20 mg/kg), resulted in significantly increased permeability across the BTB, compared to intracarotid bradykinin infusion alone. Zaprinast also significantly prolonged the permeability effects of bradykinin. Pretreatment using i.v. infusion of the soluble guanylate cyclase inhibitor, LY-83583 (125 microg/kg), significantly attenuated the bradykinin effect of opening the BTB. Cyclic GMP levels in RG2 and C6 tumors were significantly increased after intracarotid bradykinin infusion (2.8- and 2.2-fold, respectively). Cyclic GMP levels in normal brain were not increased by bradykinin infusion. These results show that increasing cyclic GMP in tumor microvessels can increase permeability in response to bradykinin.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Sugita M,Black KLsubject
Has Abstractpub_date
1998-03-01 00:00:00pages
914-20issue
5eissn
0008-5472issn
1538-7445journal_volume
58pub_type
杂志文章相关文献
CANCER RESEARCH文献大全abstract：:Transduction of malignant cells with toxin genes provides a novel means to promote tumor cell destruction. The efficacy of a toxin gene is dependent on the cell type targeted, the quantity of exogenous protein synthesized, and the mechanisms of growth inhibition and bystander killing. To develop gene therapy for targe...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1996-03-15 00:00:00
abstract：:Whether oncogenic human papilloma viruses (HPVs) are involved in the pathogenesis of prostate cancers has been a subject of great controversy. To clarify the contradictory results of investigations, with the aim of detecting viral nucleic acids in prostate cancers, we have carried out a comparative quantitation of the...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1999-02-15 00:00:00
abstract：:Androgen receptors (ARs) belong to the family of hormone receptors that are ligand-dependent transcription factors. Endocrine therapy provides effective treatment for prostate cancer until mutations arise that alter the ligand responsiveness of AR. In this study, structural models were developed for the functional dom...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：:Pristane (2,6,10,14-tetramethylpentadecane) is a C19-isoalkane that promotes the development of plasmacytomas in genetically susceptible BALB/c mice. Similarities between the effects of pristane and protein kinase C (PKC)-activating phorbol esters suggested that the tumor promoting activity of pristane might involve t...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1995-02-01 00:00:00
abstract：:We have previously presented evidence that a transient block to DNA replication induces an aberrant form of DNA synthesis. The most feasible explanation for this data is that the block to DNA replication results in some segments of the chromosomal DNA being replicated more than once in a single cell cycle. This form o...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1982-11-01 00:00:00
abstract：:The effect of combinations of the anthracycline aclarubicin and the topoisomerase II targeting drugs 4'-demethylepipodophyllotoxin-9-(4,6-O-ethylidene-beta-D-glucopyra noside) (VP-16) and 4'-(9-acridinylamino)methanesulfon-m-anisidide (m-AMSA) was investigated in a clonogenic assay. The cytotoxicity of VP-16 was almos...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1990-06-01 00:00:00
abstract：:It has been proposed that cellular retinoic acid binding protein is essential for retinoid-induced differentiation of embryonal carcinoma line PCC4.aza1R. To assess the generality of this proposal, we have tested for the presence of cellular retinoic acid binding protein activities in several other embryonal carcinoma...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1983-06-01 00:00:00
abstract：:We previously found that a high-molecular-weight anticancer agent, polystyrene-co-maleic acid conjugated neocarzinostatin (SMANCS), in which two chains of styrene/maleic acid copolymer are conjugated to the anticancer protein neocarzinostatin (NCS), accumulated more selectively in tumor tissue than in normal tissue an...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1992-02-15 00:00:00
abstract：:HER2/Neu/ERBB2 is a receptor tyrosine kinase overexpressed in approximately 20% of human breast tumors. Truncated or mutant isoforms that show increased oncogenicity compared with the wild-type receptor are found in many breast tumors. Here, we report that constitutively active ERBB2 sensitizes human breast epithelial...
journal_title：Cancer research
pub_type： 杂志文章
doi：10.1158/0008-5472.CAN-13-1747
更新日期：2014-03-15 00:00:00
abstract：:The mammary carcinoma cell line MFM-223 is characterized by high androgen and low estrogen and progesterone receptor levels. With the dextran charcoal method, androgen binding was determined at 160 fmol/mg protein corresponding to approximately 100,000 binding sites per cell in whole cell binding assays. The estrogen ...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1991-10-15 00:00:00
abstract：:The relationship between coffee drinking and the risk of digestive tract neoplasms was analyzed in a case-control study of 50 cases of cancer of the mouth or pharynx, 209 of the esophagus, 397 of the stomach, 455 of the colon, 295 of the rectum, 151 of the liver, 214 of the pancreas, and 1944 control subjects admitted...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1989-02-15 00:00:00
abstract：:The inhibitor of apoptosis proteins (IAPs) are a family of antiapoptotic proteins that bind and inhibit caspases 3, 7, and/or 9, but not caspase 8. Growing evidence also indicates that IAPs also modulate cell division, cell cycle progression, and signal transduction pathways. As our basic understanding of IAPs has inc...
journal_title：Cancer research
pub_type： 杂志文章,评审
doi：10.1158/0008-5472.CAN-04-1918
更新日期：2004-10-15 00:00:00
abstract：:The biological effects of antioxidants are often considered in terms of their effects on oxygen or lipid radicals. However, antioxidants can also exert their effects through altering the cellular redox potential. Herein, we report that sulfur-containing antioxidants such as N-acetylcysteine and dimercaptopropanol indu...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1998-04-15 00:00:00
abstract：:The treatment of HL-60 promyelocytic leukemia cells with phorbol esters (12-O-tetradecanoylphorbol-13-acetate) results in the appearance of cell substrate adhesion and the release of a Mr 94,000 gelatin-degrading metalloprotease. The appearance of the metalloprotease in the culture medium directly correlates with the ...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1990-02-15 00:00:00
abstract：:The pool sizes of purine nucleotides, nucleosides, and nucleobases were measured in the host tissues liver, skeletal muscle, and blood of Ehrlich ascites tumor-bearing mice during the different periods of tumor growth. There were large differences of tissue concentrations of these metabolites between control animals, ...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：:The effects of transforming growth factor-beta (TGF beta) on a human colon carcinoma cell line (MOSER) were investigated. TGF beta, at low concentrations (between 0.1 and 1.0 ng/ml), inhibited the proliferation of MOSER cells both in monolayer culture and soft agarose, in a dose-dependent manner. MOSER cells adapted t...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1987-06-01 00:00:00
abstract：:This review portrays an updated overview about the possible tumor suppressive properties of the Rb2/p130 gene, the third member of the retinoblastoma (RB) family of genes, including RB itself and p107. After a brief analysis of the established structural and functional similarities among the three genes, the main purp...
journal_title：Cancer research
pub_type： 杂志文章,评审
doi：
更新日期：2001-06-15 00:00:00
abstract：:Metabolic activation may be a key step in determining the tissue specificity of carcinogenic nitrosamines. In previous work, we characterized P450IIE1 (an acetone/ethanol-inducible form of cytochrome P-450) as the major enzyme for the metabolic activation of N-nitrosodimethylamine. In this work, we investigated the me...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1989-03-15 00:00:00
abstract：:The effects of the antitumorigenic drug estramustine on tumor cell membrane penetration (invasion) were investigated in vitro by utilizing a synthetic basement membrane system (a modified Boyden chamber). Tumor cells were plated on a "partition barrier," consisting of a porous filter (8-micron pores) which was coated ...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1988-11-15 00:00:00
abstract：:Although adherent junctions have been extensively studied, the role of tight junctions in cancer cell invasion is not sufficiently explored. We investigated whether claudin-1, a component of tight junctions, regulated invasion activity in oral squamous cell carcinoma (OSC) cells. The expression of claudin-1, activity ...
journal_title：Cancer research
pub_type： 杂志文章
doi：10.1158/0008-5472.CAN-05-4478
更新日期：2006-05-15 00:00:00
abstract：:Mitotic and labeling indices of bone marrow tumor cells were determined from patients with disseminated neuroblastoma. Although pretreatment values were variable, the median indices indicated that only a small proportion of tumor cells were proliferating. The pretreatment indices could not be correlated with presentin...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1977-10-01 00:00:00
abstract：:Reconstituted basement membrane matrix (Matrigel) has been utilized for in vitro assay of tumor cell invasion in recent years. In the conventional chamber for the invasion assay, however, a large number of cells passed easily through the center of the Matrigel-coated filter because the Matrigel layer could not be comp...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1994-07-01 00:00:00
abstract：:Decyl and phenyl disulfide derivatives of 6-mercaptopurine and 6-thioguanine (6-TG) were examined for antineoplastic activity under aerobic and hypoxic conditions toward EMT6 cells in culture. Although these derivatives did not display selective toxicity toward the hypoxic cells, they were significantly more toxic tha...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1987-08-15 00:00:00
abstract：:We have demonstrated the intracellular expression of sex hormone-binding globulin (SHBG) exon VII splicing variant mRNA in human uterine endometrial cancer using the reverse transcription-PCR-Southern blot and DNA sequencing analyses. Analysis of the missing base pairs proved that they corresponded to the entire exon ...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1997-12-15 00:00:00
abstract：:Photoimmunotherapy (using a monoclonal antibody-targeted photosensitizer and red light) may be a strategy to overcome the limitations inherent in photodynamic therapy of liver tumors. The aims of this study were (a) to test the efficacy of selective treatment of hepatic metastases of colorectal cancer in an orthotopic...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：2000-08-01 00:00:00
abstract：:Activated ras oncogene transfection into suitable recipient cells has been shown to induce the metastatic phenotype (Thorgeirsson, et al., Mol. Cell. Biol., 5: 259-262, 1985). We have used this model system to study the correlation of basement membrane collagenolysis with metastatic propensity. The c-Ha-ras oncogene a...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1987-03-15 00:00:00
abstract：:The involvement of immune response in the resistance of chemically induced stomach cancer was studied in a resistant rat strain (Buffalo) and a sensitive rat strain (ACI). Groups of 10 male Buffalo and ACI rats, 6 weeks of age, were given drinking water with or without N-methyl-N'-nitro-N-nitrosoguanidine (MNNG; 100 m...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1998-09-15 00:00:00
abstract：:The interaction of Adriamycin and pivaloyloxymethyl butyrate (AN-9) was investigated in IMR-32 neuroblastoma and MCF-7 breast adenocarcinoma cells. Adriamycin is a widely used anticancer drug, whereas AN-9 is an anticancer agent presently undergoing Phase II clinical trials. The anticancer activity of AN-9 has been at...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：2001-11-15 00:00:00
abstract：:Antigens isolated from herpes simplex virus type 1, herpes simplex virus type 2, or cytomegalovirus-transformed hamster cells were tested against 66 sera from non-cancer individuals or patients with different types of cancer. By use of the microcomplement fixation procedure to quantify all antigen-antibody interaction...
journal_title：Cancer research
pub_type： 杂志文章
doi：
更新日期：1976-12-01 00:00:00
abstract：:In this study, we identified 53 aberrantly hypermethylated DNA sequences in adult T-cell leukemia (ATL) cells using methylated CpG island amplification/representational difference analysis method. We also observed a proportionate increase in the methylation density of these regions with disease progression. Seven gene...
journal_title：Cancer research
pub_type： 杂志文章
doi：10.1158/0008-5472.CAN-04-1422
更新日期：2004-09-01 00:00:00
