Specificity of photosensitizer accumulation in undifferentiated versus differentiated colon carcinoma cells.

abstract：:Adult T-cell leukemia (ATL) is a fatal malignancy caused by infection with human T lymphotropic virus type-1 (HTLV-1). To search for a new biomarker of ATL, we analyzed sera from ATL patients using ProteinChip arrays. The spectral comparison of ATL patients with HTLV-1 carriers and healthy volunteers showed that the i...

journal_title：Cancer letters

authors： Ishida Y,Yamashita K,Sasaki H,Takajou I,Kubuki Y,Morishita K,Tsubouchi H,Okayama A

更新日期：2008-11-18 00:00:00

abstract：:Since angiogenesis is considered essential for tumor growth and the development of metastasis, we assessed the correlation of microvessel density (MVD) with overall survival in patients with epithelial ovarian cancer. Histologic slides were immunostained for CD34-antigen. MVD was determined within each tumor by enumer...

journal_title：Cancer letters

authors： Obermair A,Wasicky R,Kaider A,Preyer O,Lösch A,Leodolter S,Kölbl H

更新日期：1999-04-26 00:00:00

abstract：:In a development trial for an initiation bioassay system, cell proliferation kinetics after partial hepatectomy (PH) or CCl4 administration (1 ml/kg b.w., i.g.) and the effect of administration time after PH or CCl4 treatment on liver cell foci induction by the direct and indirect non-hepatocarcinogens, N-methyl-N'-ni...

journal_title：Cancer letters

authors： Kobayashi K,Mutai M,Goto K,Inada K,Tsukamoto T,Nakanishi H,Tatematsu M

更新日期：1997-09-16 00:00:00

abstract：:To improve the knowledge of the underlying mechanisms of action involved in air pollution Particulate Matter (PM)-induced toxicity in human lungs, with a particular interest of the crucial role played by coated-organic chemicals, we were interested in the metabolic activation of Polycyclic Aromatic Hydrocarbons (PAH)-...

journal_title：Cancer letters

authors： Billet S,Abbas I,Le Goff J,Verdin A,André V,Lafargue PE,Hachimi A,Cazier F,Sichel F,Shirali P,Garçon G

更新日期：2008-10-18 00:00:00

abstract：:This study investigated the role of miR-206 in estrogen receptor-α (ERα)-positive endometrial endometrioid adenocarcinoma (EEC). We profiled miR-206 expression in 30 EEC clinical samples using qRT-PCR, and explored its relationship with ERα and clinical parameters. A luciferase reporter assay assessed the ERα targetin...

journal_title：Cancer letters

authors： Chen X,Yan Q,Li S,Zhou L,Yang H,Yang Y,Liu X,Wan X

更新日期：2012-01-01 00:00:00

abstract：:CXCR2 and its ligands have been shown to play an important role in tumor angiogenesis, therapy resistance and progression. In this study, we investigated whether CXCR2 ligands are responsible for the survival advantage and metastasis of drug-resistant cells and examined the underlying mechanism(s) doxorubicin or pacli...

journal_title：Cancer letters

authors： Sharma B,Varney ML,Saxena S,Wu L,Singh RK

更新日期：2016-03-28 00:00:00

abstract：:Pancreatic cancer is one of the most aggressive malignancies and has been considered poorly immunogenic for decades. However, this characterization might be over-simplistic. A more sophisticated approach is needed in order to develop new treatment strategies. In this review, we will focus on T cell exhaustion as a phe...

journal_title：Cancer letters

authors： Bauer C,Kühnemuth B,Duewell P,Ormanns S,Gress T,Schnurr M

更新日期：2016-10-10 00:00:00

abstract：:Aurora-A (Aur-A) is a centrosome-associated serine/threonine kinase that is overexpressed in various cancers and potentially correlated with chemoresistance. In the Ara-C-sensitive leukemia cell lines, silencing of Aur-A by small interfering RNA transfection led to a significant increase in the Ara-C-induced cell deat...

journal_title：Cancer letters

authors： Cheong JW,Jung HI,Eom JI,Kim SJ,Jeung HK,Min YH

更新日期：2010-11-28 00:00:00

abstract：:Human hepatoma Hep 3B cells underwent apoptosis in response to 100 microM all-trans retinoic acid (RA) in full serum (10% fetal calf serum) condition in vitro. Cell death began approximately 24 h following treatment, with more than 80% of the cells dead after 60 h. The dead cells, mainly detached cells, exhibited cond...

journal_title：Cancer letters

authors： Kim DG,Jo BH,You KR,Ahn DS

更新日期：1996-10-01 00:00:00

abstract：:We investigated the mechanisms of action and antitumor effects of OPB-31121, a novel STAT3 inhibitor, in gastric cancer cells. OPB-31121 downregulated JAK2 and gp130 expression and inhibited JAK2 phosphorylation which leads to inhibition of STAT3 phosphorylation. OPB-31121 inhibited constitutively activated and IL-6-i...

journal_title：Cancer letters

authors： Kim MJ,Nam HJ,Kim HP,Han SW,Im SA,Kim TY,Oh DY,Bang YJ

更新日期：2013-07-10 00:00:00

abstract：:In previous National Toxicology Program (NTP) studies, rotenone reduced the background incidence of hepatocellular carcinoma in male B6C3F1 mice. In the present studies, rotenone reduced the basal hepatic labeling index of male B6C3F1 mice in a dose-dependent fashion and inhibited hepatocellular proliferation, but not...

journal_title：Cancer letters

authors： Cunningham ML,Soliman MS,Badr MZ,Matthews HB

更新日期：1995-08-16 00:00:00

abstract：:It has been proposed that a 356 amino acid protein encoded by the MIM (Missing In Metastasis) gene on Chromosome 8q24.1, is a bladder cancer metastasis suppressor. Recently, Machesky and colleagues [Biochem. J. 371 (2003) 463] identified MIM-B, a 759 amino acid protein, of which the C-terminal 356 amino acids are almo...

journal_title：Cancer letters

authors： Nixdorf S,Grimm MO,Loberg R,Marreiros A,Russell PJ,Pienta KJ,Jackson P

更新日期：2004-11-25 00:00:00

abstract：:Sleeping Beauty (SB) is a genetically engineered insertional mutagenesis system. Its ability to rapidly induce cancer in SB-transgenic mice as well as the ease of identification of the mutated genes suggest important roles for SB in the discovery of novel cancer genes as well as the generation of models of human cance...

journal_title：Cancer letters

authors： Howell VM

更新日期：2012-04-01 00:00:00

abstract：:Putrescine (PU), spermidine (SPD) and spermine (SPM) levels in blood serum of MC Sa 1828 P-bearing rats have been studied in relation to tumour weight and the histological picture. A statistically significant increase of PU and SPD was found in the course of tumour development. Decrease in the level of polyamines in t...

journal_title：Cancer letters

authors： Kaminski K,Maslinski C,Stanosek J,Szczurek Z

更新日期：1987-01-01 00:00:00

abstract：:Difluoro-phenyl-ethyl(4-aminopropylamidinohydrazone) (DFPA) was synthesized as an irreversible inhibitor of ornithine and S-adenosylmethionine decarboxylases and analyzed for antiproliferative effects on leukemia cells. The compound irreversibly inhibited ornithine and S-adenosylmethione decarboxylases. This inhibitio...

journal_title：Cancer letters

authors： Hibasami H,Sakurai M,Maekawa S,Murata T,Nakashima K

更新日期：1988-03-01 00:00:00

abstract：:Serial determinations of urinary biopterin were performed in rats during the development of lung tumors induced by radon inhalation and 5,6-benzonaphtoflavone administration. A striking increase in biopterin levels was observed in animals which developed single or multiple epidermoid carcinoma of the lung and this inc...

journal_title：Cancer letters

authors： Mura P,Morlier JP,Barriere M,Bredon P,Papet Y,Chameaud J

更新日期：1990-10-08 00:00:00

abstract：:Previously, we have shown that simian virus 40 (SV40) T antigen can directly cause apoptosis in immortalized human epithelial cells under normal growth conditions. In this study, we further characterized the mechanism of T-antigen-mediated apoptosis involving p53 and whether T antigen can suppress erbB2/neu gene expre...

journal_title：Cancer letters

authors： Wang CH,Chen YL,Tsao YP,Chen SL

更新日期：1999-03-22 00:00:00

abstract：:Trastuzumab (or Herceptin), as the first erbB2-targeted therapy, has been successfully used to treat breast cancer patients with erbB2-overexpressing tumors. However, resistances to trastuzumab frequently occur, and novel strategies/agents are urgently needed to abrogate the resistant phenotype. Our current study expl...

journal_title：Cancer letters

authors： Huang X,Wang S,Lee CK,Yang X,Liu B

更新日期：2011-08-01 00:00:00

abstract：:Pancreatic adenocarcinoma cells show characteristics of macrophages as phagocytosis and exocytosis. These phagocytic activities can be inhibited in macrophages by antirheumatic drugs, e.g. gold compounds and antimalarials. We have now tested the activity of auranofin and chloroquine to inhibit growth of a pancreatic t...

journal_title：Cancer letters

authors： Zeilhofer HU,Mollenhauer J,Brune K

更新日期：1989-01-01 00:00:00

abstract：:We have examined the expression of nitrotyrosine, a marker of peroxynitrite formation, in 55 esophageal cancers by immunohistochemistry. Nitrotyrosine was detected in 21 of 55 (38.2%) esophageal cancers. Comparison of nitrotyrosine expression and the pathological findings showed that there was a significant associatio...

journal_title：Cancer letters

authors： Kato H,Miyazaki T,Yoshikawa M,Nakajima M,Fukai Y,Tajima K,Masuda N,Tsutsumi S,Tsukada K,Nakajima T,Kuwano H

更新日期：2000-05-29 00:00:00

abstract：:Development of antiandrogen-resistance in advanced prostate cancer involves multiple androgen receptor (AR)-dependent and -independent pathways. Here, we demonstrated that endothelial nitric oxide synthase (eNOS) exhibited an overexpression pattern in hormone-refractory prostate cancer and several models of advanced h...

journal_title：Cancer letters

authors： Yu S,Jia L,Zhang Y,Wu D,Xu Z,Ng CF,To KK,Huang Y,Chan FL

更新日期：2013-01-01 00:00:00

abstract：:Growing epidemiological evidence points out the carcinogenic hazard of inhaled aflatoxin B1 (AFB1) to the pulmonary system. Metabolism of AFB1 by lung microsomes and its binding to calf thymus DNA are reported for the first time in this paper. In addition, the ability of dietary butylated hydroxyanisole (BHA) to modul...

journal_title：Cancer letters

authors： Allameh A,Saxena M,Raj HG

更新日期：1988-05-01 00:00:00

abstract：:Hepatitis C virus Core plays a vital role in the development of hepatocellular carcinoma; however, its action mechanism is still controversial. Here, we showed that Core down-regulated levels of p16, resulting in inactivation of Rb and subsequent activation of E2F1, which lead to growth stimulation of hepatocytes. For...

journal_title：Cancer letters

authors： Park SH,Lim JS,Lim SY,Tiwari I,Jang KL

更新日期：2011-11-01 00:00:00

abstract：:Recent studies in several tumor models indicated that treatment with angiogenic inhibitors may trigger induction of metastasis to other organs. Here we investigated modes of resistance and invasion in several tumor cell lines including 4T1 (breast), H460 (lung) and Colo205 (colorectal) using sunitinib at doses compara...

journal_title：Cancer letters

authors： Shojaei F,Simmons BH,Lee JH,Lappin PB,Christensen JG

更新日期：2012-07-01 00:00:00

abstract：:Changes in hepatic membrane binding capacity for epidermal growth factor (EGF) were assessed during 2-acetylaminofluorine (2-AAF)-induced hepatocarcinogenesis. An overall decrease in membrane EGF binding levels was observed throughout the period of 2-AAF administration. Immunochemical studies indicated the decreases i...

journal_title：Cancer letters

authors： DeCicco LA,Kong J,Ringer DP

更新日期：1997-01-01 00:00:00

abstract：:Epigenetics is defined as heritable changes in gene expression that occur without changes in DNA sequence. Major mechanisms of epigenetics are post-translational histone modifications such as reversible acetylation. Histone deacetylases (HDACs) maintain the acetylation level of histones but also act on non-histone sub...

journal_title：Cancer letters

authors： Schemies J,Sippl W,Jung M

更新日期：2009-08-08 00:00:00

abstract：:The preparation of chlorophyllin copper complex (CCC), shown to be a tumor promoter in an animal model (Nelson, R.L. (1992) Chlorophyllin, an antimutagen, acts as a tumor promoter in the rat-dimethylhydrazine colon carcinogenesis model. Anticancer Res., 12, 737-740), also inhibits the activities of direct- and indirec...

journal_title：Cancer letters

authors： Chernomorsky S,Rancourt R,Virdi K,Segelman A,Poretz RD

更新日期：1997-12-09 00:00:00

abstract：:We have previously demonstrated that O-phospho-L-tyrosine (P-Tyr), a substrate for a wide range of PTPases, inhibits the growth of human renal cell carcinoma and human breast cancer cell lines and suppresses EGF-mediated EGFR tyrosine phosphorylation. We now show that P-Tyr inhibited the growth of the human hepatoma c...

journal_title：Cancer letters

authors： Mishra S,Hamburger AW

更新日期：1996-04-19 00:00:00

abstract：:Prevalence of human infection with Toxoplasma gondii has been increasing in China due to the increasing number of cats. However, little is known of the epidemiology of T. gondii infection in different cancer patient groups. Thus, a case-control study of 900 cancer patients and 900 controls was conducted to detect anti...

journal_title：Cancer letters

authors： Cong W,Liu GH,Meng QF,Dong W,Qin SY,Zhang FK,Zhang XY,Wang XY,Qian AD,Zhu XQ

更新日期：2015-04-10 00:00:00

abstract：:Jade family PHD finger 3 (JADE3) plays a role in inducing histone acetylation during transcription, and is involved in the progression of several human cancers; however, its role in colon cancer remains unclear. Herein, we found that JADE3 was markedly upregulated in colon cancer tissues and significantly correlated w...

journal_title：Cancer letters

authors： Jian Y,Wang M,Zhang Y,Ou R,Zhu Z,Ou Y,Chen X,Liang X,Ding Y,Song L,Xu X,Liao W

更新日期：2018-08-01 00:00:00