abstract：AIM:the ability of the breast cancer-associated placental acid isoform of ferritin (p43-PLF) to modulate cell surface expression of HLA, CD59 (protectin) and CD66 antigen (adhesion antigen related to CEA) was examined. METHODS:the expression of these antigens in human breast carcinoma cell lines BT-20, T47D and MDA-MB...

journal_title：Cancer letters

authors： Sedlak J,Reinerova M,Hunakova L,Ausch C,Chorvath B,Rosen H,Moroz C

更新日期：1995-07-20 00:00:00

abstract：:The three most common genetic abnormalities occurring in malignant lymphomas involve alterations resulting in the deregulated expression of the c-myc and bcl-2 oncogenes and the inactivation of the p53 tumor suppressor gene. Relevant strains of genetically engineered mice, including bcl-2-Ig and E mu-myc transgenic mi...

journal_title：Cancer letters

authors： Hsu B,Marin MC,McDonnell TJ

更新日期：1995-07-20 00:00:00

abstract：:Recent work has demonstrated that oncogenes and tumor suppressor proteins regulate apoptotic cell death. Current efforts are therefore directed at determining how they exert their effects. It appears that oncogenes can control activation of the apoptosis endonuclease(s) either by regulating the signal(s) that trigger ...

journal_title：Cancer letters

authors： McConkey DJ,Fernandez A,Trent J 2nd,Ananthaswamy HN

更新日期：1995-07-20 00:00:00

abstract：:We have studied whether the cell proliferation rate modifies the inhibitory actions of melatonin on MCF-7 cell growth. The proliferative rate of cells was altered by plating them at different densities (5 x 10(4) to 100 x 10(4) cells/dish) in media with low charcoal-stripped serum concentrations. In this way, populati...

journal_title：Cancer letters

authors： Cos S,Sánchez-Barceló EJ

更新日期：1995-07-13 00:00:00

abstract：:The current standard approach for assessing carcinogenic potential is to conduct a near lifetime rodent pathology study with the high dose set to the maximum tolerated dose (MTD) of the test chemical. The linearized multistage model is then used as the default approach to estimate the potential human cancer risk at en...

journal_title：Cancer letters

authors： Butterworth BE,Conolly RB,Morgan KT

更新日期：1995-06-29 00:00:00

abstract：:Tamoxifen (TAM)-induced DNA adduct formation in mouse skin was determined by a nuclease P1-enhanced 32P-postlabelling technique. Topical application of TAM significantly induced a number of DNA-adducts in mouse skin in a dose- and time-dependent manner. When SENCAR mice were topically treated with different doses of T...

journal_title：Cancer letters

authors： Cai Q,Wei H

更新日期：1995-06-08 00:00:00

abstract：:These experiments were designed to test the role of the polyamine pathway in breast cancer progression utilizing an experimental system based on the development of ovary-independent rat mammary tumors and their sequential transplantation into syngeneic hosts. Three key enzymes involved in the PA biosynthetic/catabolic...

journal_title：Cancer letters

authors： Manni A,Grove R,Kunselman S,Aldaz CM

更新日期：1995-05-25 00:00:00

abstract：:To determine the genotoxic risk associated with therapeutic exposure to 131I, we studied the presence of micronuclei (MN) in binucleated peripheral blood lymphocytes of a group of 22 women, patients of thyroid cancer, who received 131I sodium iodide orally as an adjuvant after total thyroidectomy. The cytogenetic stud...

journal_title：Cancer letters

authors： Gutiérrez S,Carbonell E,Galofréa P,Xamena N,Creus A,Marcos R

更新日期：1995-05-08 00:00:00

abstract：:Selenium-dependent (Se-GSH-Px), selenium-independent (non-Se-GSH-Px) glutathione peroxidase and glutathione reductase (GSSG-Rx) activities have been determined in cancerous and non-cancerous human adult kidney. Large inter-individual variation in the activities of all enzymes tested were found in both tumour and non-t...

journal_title：Cancer letters

authors： Di Ilio C,Sacchetta P,Angelucci S,Zezza A,Tenaglia R,Aceto A

更新日期：1995-05-04 00:00:00

abstract：:In vitro cultured r/mHM-SFME-1 cells were injected into the hind foot pads of Balb/c mice. Metastasis was detected in the lungs of tumor-bearing mice by means of both PCR and histological methods. Primers for the PCR were set to amplify a 128 bp exon-1 sequence of the human c-Ha-ras1 gene which had been introduced int...

journal_title：Cancer letters

authors： Matano S,Ryoyama K,Nakamura S,Okada G,Nomura T

更新日期：1995-05-04 00:00:00

abstract：:Administration of raw soya containing a trypsin inhibitor stimulated excessive release of cholecystokinin (CCK) which led to pancreatic hypertrophy, hyperplasia and cancer in the rats (Booth et al. (1964) Proc. Soc. Exp. Biol. Med., 116, 1067). More postprandial CCK release in healthy humans was observed after ingesti...

journal_title：Cancer letters

authors： Lu LJ,Anderson KE,Gomez G,Nealon WH

更新日期：1995-04-14 00:00:00

abstract：:Mouse mammary tumor viruses (MMTV) replicate in the mammary gland, appear as infectious particles in mother's milk and invade the sucking pups from the intestinal tract. The immune system is essential for MMTV in the gut to reach the mammary gland. These properties make the life cycle of MMTV unique. We review the onc...

journal_title：Cancer letters

authors： Matsuzawa A,Nakano H,Yoshimoto T,Sayama K

更新日期：1995-03-23 00:00:00

abstract：:The mechanism of DDB (dimethyl 4,4'-dimethoxy-5,6,5',6'-dimethylenedioxy biphenyl-2,2'-dicarboxylate) prevention of aflatoxin B1 (AFB1)-induced hepatotoxicity in rats has been investigated. Pretreatment of DDB (200 mg/kg) daily for 4 days significantly suppressed (P < 0.05) the AFB1-induced hepatic damage as evidenced...

journal_title：Cancer letters

authors： Liu TY,Hwua YS,Chao TW,Chi CW

更新日期：1995-03-02 00:00:00

abstract：:A rabbit gamma delta killer T-cell line against Shope carcinoma cells was established from peripheral blood lymphocytes (PBL) of a human T-lymphotropic virus type I (HTLV-I)-infected rabbit bearing Shope papilloma and carcinoma. Southern hybridization analysis of this cell line with an HTLV-I probe showed that the cel...

journal_title：Cancer letters

authors： Kim CJ,Isono T,Tomoyoshi T,Seto A

更新日期：1995-02-10 00:00:00

abstract：:We have developed a monoclonal antibody (designated 1D7) which recognizes an M(r) 7-kDa plasma membrane protein overexpressed in ovarian MDR cancer cells. The expression of the M(r) 7-kDa protein in various human multidrug-resistant and drug-sensitive cell lines was analysed by Western blot and flow cytometry methods....

journal_title：Cancer letters

authors： Yang X,Pagé M

更新日期：1995-01-27 00:00:00

abstract：:Sulofenur treatment (12.5 microM-1 mM) of colon adenocarcinoma cell lines resulted in dose- and time-dependent cell killing. LYc5 cells were viable longer than GC3/c1 cells. Each concentration resulted in elevation of cytosolic calcium [Ca2+]i) for both cell lines. At lower doses, elevation was delayed for LYc5 cells....

journal_title：Cancer letters

authors： Phelps PC,Jain PT,Berezesky IK,Boder GB,Trump BF

更新日期：1995-01-06 00:00:00

abstract：:Rats bearing the Yoshida AH-130 ascites hepatoma, a cachectic rat tumour, showed signs of important muscle wasting with reduced muscle weights. This phenomenon was associated with a decreased rate of in vivo alanine oxidation as measured by the production of 14CO2 from [U-14C]alanine intragastrically administered. It ...

journal_title：Cancer letters

authors： García-Martínez C,López-Soriano FJ,Argilés JM

更新日期：1994-12-09 00:00:00

abstract：:A hitherto unreported lactate dehydrogenase (LD) isoenzyme, which migrates electrophoretically to the relative position between LD2 and LD3 has been identified in the electropheratogram in 7 of 7 (100%) cultured hepatoma cell lines with various degrees of differentiation and is thus given the name LD2-3. LD2-3 seems t...

journal_title：Cancer letters

authors： Liu TZ,Chen PY,Chiu DT,Wei JS,Chang KS,Lin KH

更新日期：1994-12-09 00:00:00

abstract：:The effect of the naturally occurring flavonol, quercetin, was investigated on cell growth and metabolism of two human carcinoma cell lines, HT29 and Caco-2 cells, both during the exponentially growing phase and after confluence. Our results show clearly that, after a 48-h period of treatment, quercetin (in the range ...

journal_title：Cancer letters

authors： Agullo G,Gamet L,Besson C,Demigné C,Rémésy C

更新日期：1994-11-25 00:00:00

abstract：:The role of p53 in the evolution of non-Hodgkin's lymphomas (NHL) is unclear. Mutations of the p53 gene appear to be relatively uncommon but stabilized p53 protein, as detected by immunohistochemistry, has indicated a more frequent involvement of p53. As dysfunction of p53 protein has also been suggested to occur afte...

journal_title：Cancer letters

authors： Finnegan MC,Goepel JR,Royds J,Hancock BW,Goyns MH

更新日期：1994-11-11 00:00:00

abstract：:Fifteen samples from 11 patients suffering from chronic lymphocytic leukaemia (CLL; 5 untreated, 6 chemotherapeutically treated) were analysed for their individual gene expression of the multidrug resistance (MDR) associated genes encoding mdr1/P-glycoprotein, mrp, and topoisomerase II alpha/beta-isoenzymes by a compl...

journal_title：Cancer letters

authors： Beck J,Niethammer D,Gekeler V

更新日期：1994-10-28 00:00:00

abstract：:Antitumor effects of nine components of a herbal medicine, 'Sho-saiko-to', were investigated on human hepatoma cell lines (PLC/PRF/5, Hep-G2), human liver cells (Chang) and a human pancreatic cancer cell line (BxPC-3). The concentration of each component required for 50% inhibition of cell growth of PLC/PRF/5 cells wa...

journal_title：Cancer letters

authors： Motoo Y,Sawabu N

更新日期：1994-10-28 00:00:00

abstract：:The influence of 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone, a mutagen in chlorinated water, on cell proliferation and lipid peroxidation in the glandular stomach mucosa was investigated in male 4-week-old Wistar rats. Animals were given 50 p.p.m., 25 p.p.m., 12.5 p.p.m., 6.25 p.p.m. or 0 p.p.m. of MX soluti...

journal_title：Cancer letters

authors： Nishikawa A,Kinae N,Furukawa F,Mitsui M,Enami T,Hasegawa T,Takahashi M

更新日期：1994-10-14 00:00:00

abstract：:The acute intraperitoneal toxicities of chlorambucil and chlorambucil-spermidine conjugate have been compared, in mice. Both compounds were neurotoxic and also caused a prolonged fall in bodyweight and a depletion of lymphocyte numbers associated with a fall in the total leukocyte count and loss of spleen and thymus w...

journal_title：Cancer letters

authors： Verschoyle RD,Carthew P,Holley JL,Cullis P,Cohen GM

更新日期：1994-10-14 00:00:00

abstract：:This study tested the effect of intratumoral injection with activated tumor-infiltrating lymphocytes (TIL), and simultaneous administration of recombinant interleukin-2 (rIL-2) and interferon alpha (IFN-alpha) (LII protocol), on mouse liver tumor. Group I (n = 10) served as the controls. Group II (n = 17) received rIL...

journal_title：Cancer letters

authors： Liu DL,Håkansson CH,Seifert J

更新日期：1994-09-30 00:00:00

abstract：:The expression of DNA-topoisomerase II was analysed at the protein level in newly diagnosed cases of acute lymphoblastic leukemia (ALL) in children. Blast cells obtained from 81 children with untreated ALL were determined by means of immunocytochemistry. Of the ALL, 49 (60%) were positive for topoisomerase II and 32 (...

journal_title：Cancer letters

authors： Stammler G,Sauerbrey A,Volm M

更新日期：1994-09-15 00:00:00

abstract：:Cancerous breast hyperthermia is seemingly associated with non-neurological vasodilation modulated by nitric oxide (NO). NO, associated with enhanced immune response, is produced autocatalytically involving ferritin as the supplier of Fe2+, which catalyses the formation of NO. NO, in turn, releases Fe2+ from ferritin....

journal_title：Cancer letters

authors： Anbar M

更新日期：1994-08-29 00:00:00

abstract：:Enhanced c-erbB-2/neu expression has been linked with a poor prognosis in human bladder cancer. Previous reports have shown that a point mutation at nucleotide T2012 in the coding region of the transmembrane domain of the rat gene is sufficient to confer transformation potential on this gene. We examined the comparati...

journal_title：Cancer letters

authors： Mann AM,Asamoto M,Masui T,Macatee T,Eklund SH,Cohen SM

更新日期：1994-08-29 00:00:00

abstract：:Gastric juice ascorbic acid concentrations were examined in black and white patients. Significantly lower concentrations were found in blacks, in the absence of a significant difference in the plasma concentration of vitamin C between races. Blacks had higher prevalence of Helicobacter pylori infection, higher gastric...

journal_title：Cancer letters

authors： Ruiz B,Correa P,Fontham ET,Rood JC,Malcom GT,Torrado J,Perez A,Ramakrishnan T,Hunter FM

更新日期：1994-08-15 00:00:00

abstract：:Antimutagenic activity of copper chlorophyllin against various carcinogenic mutagens was assayed with Drosophila genotoxicity tests, i.e., the wing spot test for detecting somatic cell mutations and the DNA repair test for detecting DNA damage. In these tests, Drosophila larvae were fed carcinogens together with chlor...

journal_title：Cancer letters

authors： Negishi T,Nakano H,Kitamura A,Itome C,Shiotani T,Hayatsu H

更新日期：1994-08-15 00:00:00

abstract：:We constructed an SV40-derived expression vector containing a mutated albumin minigene of Nagase analbuminemic rats (NAR), and introduced it into cultured cells. Transient expression of the minigene mRNA was determined by RT-PCR. Three kinds of aberrant mRNAs were expressed by the non-hepatic cells COS-1, and the undi...

journal_title：Cancer letters

authors： Sugiyama K,Hitomi Y,Adachi H,Esumi H

更新日期：1994-08-15 00:00:00

abstract：:The dose-dependence of 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx) carcinogenicity when given in the diet continuously throughout the experiment (56 weeks) at doses of 100, 200 and 400 ppm, was examined in F344 male rats. Tumors developed dose-dependently in the liver, Zymbal glands and skin in the experimen...

journal_title：Cancer letters

authors： Kushida H,Wakabayashi K,Sato H,Katami M,Kurosaka R,Nagao M

更新日期：1994-08-15 00:00:00

abstract：:Although the incidence is very low, the prognosis of anaplastic carcinoma of the thyroid is very poor regardless of the results of various therapeutic trials. We found that the mechanism of anti-cancer drug resistance in anaplastic carcinoma of the thyroid was not explicable only in terms of expression of the mdr1 and...

journal_title：Cancer letters

authors： Sugawara I,Arai T,Yamashita T,Yoshida A,Masunaga A,Itoyama S

更新日期：1994-07-29 00:00:00

abstract：:Tumor biopsies obtained from 25 Saudi Arab patients with nasopharyngeal carcinoma (NPC) were examined for the presence of Epstein-Barr virus (EBV) DNA detected by the polymerase chain reaction (PCR) and for the incidence of p53 mutations screened by a combination of PCR, single strand conformation polymorphism (SSCP) ...

journal_title：Cancer letters

authors： Nasrin N,Taiba K,Hannan N,Hannan M,al-Sedairy S

更新日期：1994-07-29 00:00:00

abstract：:Several classes of plant polyphenols namely, flavonoids, chalcones and coumarins exhibited varying degrees of inhibition on the cell proliferation of human colon adenocarcinoma cell line 220.1. At the highest concentration tested (100 microM), many of the chalcones showed > 100% growth inhibition and their order of po...

journal_title：Cancer letters

authors： Yit CC,Das NP

更新日期：1994-07-15 00:00:00

abstract：:Adeno-associated virus (AAV) is a non-pathogenic human parvovirus which has anti-tumor and anti-proliferation properties in tissue culture and animal studies. Furthermore, AAV infection is negatively associated with human cervical cancer. C-myc has been implicated in cervical cancer, and c-fos is involved in signal tr...

journal_title：Cancer letters

authors： Hermonat PL

更新日期：1994-06-30 00:00:00

abstract：:Since CP always exists in aqueous solution as a mixture of native drug and various aqua and hydroxo species, it is conceivable that one or more of these aquated species is the main form of the drug that enters the cell. To test this hypothesis, we examined the accumulation by 2008 human ovarian carcinoma cells of CP a...

journal_title：Cancer letters

authors： Jennerwein M,Andrews PA

更新日期：1994-06-30 00:00:00

abstract：:Inherent DNA damage in the form of single strand breaks and alkali labile sites is generated by essential intracellular processes, such as DNA replication and repair. Utilizing the in situ DNA unwinding assay and the comet assay (single cell gel), we have observed high levels of alkali induced DNA strand breaks in cel...

journal_title：Cancer letters

authors： Fairbairn DW,Reyes WA,O'Neill KL

更新日期：1994-06-15 00:00:00

abstract：:We have used human procathepsin D isolated from supernatant of human breast cancer cell line ZR-75-1 to test its mitogenic activity for a broad spectrum of human-derived cell lines. These cell lines included: breast cancer cell lines ZR-75-1, MDA-MB-436, MBA-MD-483 and MDA-MB-231, B lymphoblastoid cell line Raji, the ...

journal_title：Cancer letters

authors： Vĕtvicka V,Vĕktvicková J,Fusek M

更新日期：1994-05-16 00:00:00

abstract：:The effects of caloric restriction on the incidence of mammary tumor development, the levels of the expression of mouse mammary tumor virus (MMTV)- and prolactin-RNA, as well as the levels of serum prolactin, were investigated in virgin RIII/Sa mice, a strain known to display a high incidence of spontaneous mammary tu...

journal_title：Cancer letters

authors： Li HW,Zhao W,Sarkar NH

更新日期：1994-05-16 00:00:00