Heterogeneous pattern of gene expression in cloned cell lines established from a rat transplantable osteosarcoma lung metastatic nodule.

abstract：:The goal was to evaluate whether melatonin (Mel) down-regulates hTERT expression induced by 17beta-estradiol (E(2)) or cadmium (Cd) in breast cancer cells. We found that: (a) Mel inhibits E(2) or Cd-induced hTERT transcription in hTERT-Luc transfected MCF-7 cells, (b) Mel significantly reduces E(2)- and Cd-mediated hT...

journal_title：Cancer letters

authors： Martínez-Campa CM,Alonso-González C,Mediavilla MD,Cos S,González A,Sanchez-Barcelo EJ

更新日期：2008-09-18 00:00:00

abstract：:A common germline polymorphism of p53 gene produces an Arginine to Proline change at aminoacid position 72. The resulting codon 72 variants have been reported associated with tumor susceptibility since they reduce p53 ability to activate apoptosis. Codon 72 polymorphism may play a role in subside vulnerability to diff...

journal_title：Cancer letters

authors： Granja F,Morari J,Morari EC,Correa LA,Assumpção LV,Ward LS

更新日期：2004-07-16 00:00:00

abstract：:The selectivity of photodynamic therapy (PDT) derived from the tailored accumulation of photosensitizing drug (photosensitizer; PS) in the tumor microenvironment (TME), and from local irradiation, turns it into a "magic bullet" for the treatment of resistant tumors without sparing the healthy tissue and possible adver...

journal_title：Cancer letters

authors： Pucelik B,Sułek A,Barzowska A,Dąbrowski JM

更新日期：2020-11-01 00:00:00

abstract：:Osteosarcoma (OS) is the most common primary bone malignancy and is frequently lethal via metastasis to the lung. While surgical techniques and adjuvant chemotherapies have emerged to combat this deadly cancer, the 5-year survival rate has plateaued over the past four decades. Therapeutic progress has been notably poo...

journal_title：Cancer letters

authors： Zhao J,Dean DC,Hornicek FJ,Yu X,Duan Z

更新日期：2020-04-01 00:00:00

abstract：:The variation of the E6 region of human papillomavirus type 16 (HPV16) is associated with a high risk for cervical carcinogenesis. To see whether the same is the case with HPV33, 52 and 58, known to have high homology with HPV16, we analyzed the E6 sequence variation of these HPVs in 107 Japanese women with cervical i...

journal_title：Cancer letters

authors： Xin CY,Matsumoto K,Yoshikawa H,Yasugi T,Onda T,Nakagawa S,Yamada M,Nozawa S,Sekiya S,Hirai Y,Shiromizu K,Fujii T,Taketani Y

更新日期：2001-09-10 00:00:00

abstract：:Angiogenesis is regulated by numerous "classic" factors such as vascular endothelial growth factor (VEGF) and many other endogenous "non-classic"peptides, including erythropoietin (Epo), and granulocyte-/granulocyte macrophage colony stimulating factor (G-/GM-CSF). The latter play an important regulatory role in angio...

journal_title：Cancer letters

authors： Ribatti D,Tamma R

更新日期：2019-01-01 00:00:00

abstract：:A cell line partially resistant to dimethylsulfoxide (DMSO) was derived from the HL-60 cell line. Cycloleucine, theophylline, sodium butyrate and elevated levels of DMSO were found to induce myeloid differentiation in this cell line while TPA induced monocytic differentiation. The levels of myc RNA and the genomic str...

journal_title：Cancer letters

authors： Grosso LE,Pitot HC

更新日期：1984-02-01 00:00:00

abstract：:H. pylori infection causes gastritis, peptic ulcers and gastric cancer. Eradicating H. pylori prevents ulcers, but to what extent this prevents cancer remains unknown, especially if given after intestinal metaplasia has developed. H. pylori infected wild-type (WT) mice do not develop cancer, but mice lacking the tumor...

journal_title：Cancer letters

authors： Zhang S,Lee DS,Morrissey R,Aponte-Pieras JR,Rogers AB,Moss SF

更新日期：2015-04-10 00:00:00

abstract：:Human papillomavirus (HPV) infection is one of the most common sexually transmitted infections (STIs) in young women. They can occur in one or multiple areas of the female genitalia. Usually, the vulva is the initial site of implantation for HPV. The purpose of our study is to evaluate the epidemiological aspects, inc...

journal_title：Cancer letters

authors： Frega A,Stentella P,De Ioris A,Piazze JJ,Fambrini M,Marchionni M,Cosmi EV

更新日期：2003-07-10 00:00:00

abstract：:The present study was conducted to investigate protein levels of inducible NO synthase (iNOS) and cayclooxygenase-2 (COX-2) in human colon cancer tissues. Significant increase of iNOS and COX-2 levels in tumors as compared to paired normal tissue was observed in 15 and 28, respectively, of 29 cases investigated. No co...

journal_title：Cancer letters

authors： Ohta T,Takahashi M,Ochiai A

更新日期：2006-08-08 00:00:00

abstract：:The therapeutic efficacy of antineoplastic purine analogs can be jeopardized by the emergence of drug-resistant mutant subpopulations of tumor cells. To determine whether such mutant populations might be eradicable in vivo with the type of HAT combination (hypoxanthine + an antifolate + thymidine) known to be selectiv...

journal_title：Cancer letters

authors： Moolten FL

更新日期：1986-06-01 00:00:00

abstract：:Inhibition of DNA synthesis was observed and quantitated in hamster buccal pouch epithelium exposed in vivo and in vitro to indirect acting carcinogens. Topical application of a 0.5% solution of the potent hamster buccal pouch carcinogen 7,12-dimethylbenz[a]-anthracene (DMBA) acutely inhibited epithelial DNA synthesis...

journal_title：Cancer letters

authors： Nagabhushan M,Ng YK,Elias R,Polverini PJ,Solt DB

更新日期：1990-09-01 00:00:00

abstract：:Lactoferrin, an iron-binding glycoprotein, exhibits suppressive effects on development of azoxymethane (AOM)-induced tumors in the rat colon, but the mechanisms are largely unknown. In this study, we investigated the effect of lactoferrin on the gene expression of 10 apoptosis-related molecules in colon mucosa of AOM-...

journal_title：Cancer letters

authors： Fujita K,Matsuda E,Sekine K,Iigo M,Tsuda H

更新日期：2004-09-15 00:00:00

abstract：:Tumor necrosis factor-alpha (TNF-alpha) is a macrophage-derived multifunctional cytokine that acts as a cytostatic or cytotoxic agent in many tumor cells. However, the molecular mechanisms by which tumor cells become sensitive to the cytotoxic action of TNF-alpha are not clear. In this study we demonstrated that the c...

journal_title：Cancer letters

authors： Park IC,Park MJ,Lee SH,Choe TB,Jang JJ,Hong SI

更新日期：1998-03-13 00:00:00

abstract：:The effect of vitamin A (retinyl acetate) on lung tumor development in strain A mice exposed to radiation was assessed. Four groups of 75 mice were utilized. Two groups were fed a low vitamin A diet (less than 100 IU/100 g diet) and the other 2 were fed a high vitamin A diet (800 IU/100 g diet). After 2 weeks one grou...

journal_title：Cancer letters

authors： Mian TA,Theiss JC,Gesell TF

更新日期：1984-02-01 00:00:00

abstract：:Benign mammary gross cystic disease is the most common breast lesion; women with apocrine changes of epithelium lining the cysts are at higher risk for developing breast cancer than the normal population. Total cholesterol, high- and low-density lipoproteins fractions, triglycerides and phospholipids, lipase activity ...

journal_title：Cancer letters

authors： Mannello F,Bocchiotti GD,Morano FP,Fratepietro LM,Gazzanelli G

更新日期：1996-01-02 00:00:00

abstract：:The cooking of meat and fish produces heterocyclic amine mutagens, including 2-amino-1-methyl-6-phenylimidazo[4,5b]pyridine (PhIP) and 2-amino-3-methylimidazo[4,5-f]quinoline (IQ). Chronic administration of PhIP or IQ to the F344 rat induces tumors at several sites, including adenocarcinomas of the colon, and short-te...

journal_title：Cancer letters

authors： Xu M,Dashwood RH

更新日期：1999-09-01 00:00:00

abstract：:Vaccines containing synthetic peptides derived from tumor-associated antigens (TAA) can elicit potent cytotoxic T lymphocyte (CTL) response if they are formulated in an optimal vaccine delivery system. The aim of this study was to develop a simple and effective lipid-based vaccine delivery system using P5 HER2/neu-der...

journal_title：Cancer letters

authors： Shariat S,Badiee A,Jalali SA,Mansourian M,Yazdani M,Mortazavi SA,Jaafari MR

更新日期：2014-12-01 00:00:00

abstract：:One of the most promising strategies to increase the efficacy of standard chemotherapy drugs is by combining them with low doses of histone deacetylases inhibitors (HDACis). Regarded as chemosensitizers, the addition of well-tolerated doses of HDACis to platinum-based chemotherapeutics has been proven in vitro and in ...

journal_title：Cancer letters

authors： Diyabalanage HV,Granda ML,Hooker JM

更新日期：2013-02-01 00:00:00

abstract：:We studied the effect of 13-cis-retinoic acid (13-cRA) alone and in combination with interferons (IFNs) and tamoxifen (TAM) in two established human breast cancer cell lines: the estrogen-sensitive CG-5 and the estrogen-insensitive MDA-MB-453 cells. 13-cRA (10(-9)-10(-5) M) significantly reduced the growth of both cel...

journal_title：Cancer letters

authors： Lama G,Angelucci C,Recchia F,Sica G

更新日期：1996-02-27 00:00:00

abstract：:Human kinome/phosphatome screen identified CAMK2N1 genes suppressing the development of human hepatocellular carcinoma (HCC). CAMK2N1 downregulation was found in 47% HCCs and associated with poor prognosis. The downregulation was mainly attributed to its genome deletion (28.4%) and DNA hypermethylation of its promoter...

journal_title：Cancer letters

authors： Peng JM,Tseng RH,Shih TC,Hsieh SY

更新日期：2021-01-28 00:00:00

abstract：:Patients with Her2-positive breast cancer exhibit de novo resistance or develop acquired resistance in less than one year after Her2 targeting treatment, but the mechanism is not fully elucidated. Compensatory pathways such as the IGF-1R/IRS-1 pathway, are activated, leading to aberrant enhanced PI3K/Akt/mTOR pathway ...

journal_title：Cancer letters

authors： Qiu N,He YF,Zhang SM,Zhan YT,Han GD,Jiang M,He WX,Zhou J,Liang HL,Ao X,Xia HM,Li J,Yang YY,He ZM,Zou ZZ,Li HS

更新日期：2019-11-01 00:00:00

abstract：:Preventive intervention of colorectal cancer has become essential as a major portion of the population may develop the disease at some points during their lives. Diet and nutrition play an important role during this multistep colon carcinogenic process. Inhibitory activity of aqueous suspensions of garlic and tomato, ...

journal_title：Cancer letters

authors： Sengupta A,Ghosh S,Das S

更新日期：2004-05-28 00:00:00

abstract：:Fludarabine phosphate is a synthetic analog of beta-arabinofuranosyl adenine (beta-ara-A), an anti-viral agent. Since beta-ara-A has been shown to be an effective inhibitor of potentially lethal damage (PLD) repair in cell culture system but ineffective in in vivo tumors, we carried out experiments to determine whethe...

journal_title：Cancer letters

authors： Kim JH,Alfieri AA,Kim SH,Fuks Z

更新日期：1986-04-01 00:00:00

abstract：:The overexpression of the MDM2 oncoprotein frequently occurs in hepatocellular carcinoma (HCC). Small molecules that inhibit MDM2-p53 binding show efficacy against p53 wild-type HCC, but most patients have p53-mutant tumors and intrinsic resistance to such MDM2 inhibitors. We have recently discovered that the NFAT1 tr...

journal_title：Cancer letters

authors： Wang W,Cheng JW,Qin JJ,Hu B,Li X,Nijampatnam B,Velu SE,Fan J,Yang XR,Zhang R

更新日期：2019-09-10 00:00:00

abstract：:Pancreatic cancer is one of the most devastating diseases with very poor prognosis. Only a small proportion is curable by surgical resection, whilst standard chemotherapy for patients with advanced disease has only modest effect with substantial toxicity. Therefore, there is an urgent need for the development of novel...

journal_title：Cancer letters

authors： Xu C,Li H,Su C,Li Z

更新日期：2013-06-01 00:00:00

abstract：:Despite the significance of tumor angiogenesis and the extensive knowledge on the molecular basis of blood vessel formation in carcinoma of colorectum, no data exist in hyperplastic polyp. This prompted us to examine angiogenesis in hyperplastic polyp. Eleven small hyperplastic polyps, 13 large hyperplastic polyps and...

journal_title：Cancer letters

authors： Sano Y,Maeda N,Kanzaki A,Fujii T,Ochiai A,Takenoshita S,Takebayashi Y

更新日期：2005-02-10 00:00:00

abstract：:Radiation therapy has become an important tool in the treatment of cancer patients, but most patients relapse within 5 years. Relapse is due to the presence of cancer stem cells (CSCs), but the molecular mechanism of radioresistance in CSCs remains largely elusive. Here, we found that irradiation-resistant (IR) cells ...

journal_title：Cancer letters

authors： Shi Y,Liu N,Lai W,Yan B,Chen L,Liu S,Liu S,Wang X,Xiao D,Liu X,Mao C,Jiang Y,Jia J,Liu Y,Yang R,Cao Y,Tao Y

更新日期：2018-05-28 00:00:00

abstract：:Up to a 50% rate of thyroid gland tumours was induced in Sprague-Dawley rats after s.c. administration of di-isopropanolnitrosamine (DIPN). The neoplasms occurred both unilaterally and bilaterally, and were identified histologically as adenomas and adenocarcinomas of follicular epithelium origin. In a few instances, a...

journal_title：Cancer letters

authors： Reznik G,Mohr U

更新日期：1977-03-01 00:00:00

abstract：:The objective of this work was to investigate the expression of glutathione S-transferase placental form (GST-P) in 9,10-dimethyl-1,2-benzanthracene (DMBA)-induced hamster buccal pouch carcinogenesis. Lesions were classified histopathologically into four categories, simple hyperplasia, papillary and nodular (PN) hyper...

journal_title：Cancer letters

authors： Iida K,Yamamoto M,Kato M,Yoshida K,Kurita K,Tatematsu M

更新日期：1999-01-29 00:00:00