Enhancing effects of Thai edible plants on 2-amino-3, 8-dimethylimidazo(4,5-f)quinoxaline-hepatocarcinogenesis in a rat medium-term bioassay.

abstract：:Mice with hereditary intestinal polyposis have mutations of the APC gene which causes formation of multiple polyps. At least one other gene influences the susceptibility for development of polyps in mice, and the locus was named Mom1. The causative gene for the Mom1 locus has recently been cloned and was found to be i...

journal_title：Cancer letters

authors： Kawamata N,Seriu T,Bartram CR,Koeffler HP

更新日期：1997-01-01 00:00:00

abstract：:N-[2-(p-bromocinnamylmethylamino) ethyl]-5-isoquinolinesulfonamide (H-87), a newly synthesized inhibitor of protein kinase A, significantly decreased the drug resistance of multidrug resistant human U937/M cells, mouse FM3A/M and P388/M cells. Northern blot analysis showed MDR1 gene expression was decreased in H-87-tr...

journal_title：Cancer letters

authors： Kim SH,Park JI,Chung BS,Kang CD,Hidaka H

更新日期：1993-10-15 00:00:00

abstract：:Invasion process occurs both in mammalian embryo implantation during development and malignant cancer cell metastasis. We investigated the interactions between trophoblasts and metastatic cancer cells and found the phenomenon that mouse trophoblastic cells invaded the monolayer of malignant cancer cells in vitro and a...

journal_title：Cancer letters

authors： Fang LQ,Zhang H,Ding XY,Li DQ,Hou XL,Qiao H,Bai J,Wang ZB

更新日期：2010-12-28 00:00:00

abstract：:Neuroblastoma (NB) is a solid childhood tumour that exhibits heterogeneous biological and clinical phenotypes. Multiple drug resistance marks a major complication especially in high-risk patients with advanced tumour stages and specific genetic aberrations, such as MYCN amplification and lp deletion. As an approach to...

journal_title：Cancer letters

authors： Paffhausen T,Schwab M,Westermann F

更新日期：2007-05-18 00:00:00

abstract：:The effect of the calmodulin antagonist trifluoperazine on hepatocarcinogenesis induced by N-nitrosomorpholine (NNM) and on the ornithine decarboxylase (ODC) activity and labeling index of the liver were investigated in male Sprague-Dawley rats. Rats were given drinking water containing NNM for 8 weeks, and from the b...

journal_title：Cancer letters

authors： Tatsuta M,Iishi H,Baba M,Yano H,Uehara H,Nakaizumi A,Iseki K

更新日期：1996-10-22 00:00:00

abstract：:Previously, we reported that quercetin and resveratrol inhibit the function of androgen receptor (AR). Further studies showed that these two polyphenols caused an increase in expression of c-Jun as well as its phosphorylated form in a dose-dependent manner in prostatic cell lines. Gel shift assay showed that induced c...

journal_title：Cancer letters

authors： Yuan H,Pan Y,Young CY

更新日期：2004-09-30 00:00:00

abstract：:Castration-resistant prostate cancer (CRPC) following androgen deprivation therapy remains a major obstacle advanced prostate cancer management. Aromatase catalyzes estrogen from androgens, yet the role of aromatase-generated endogenous estrogen in CRPC is poorly understood. In this study, we assessed the expression a...

journal_title：Cancer letters

authors： Liang Z,Cao J,Tian L,Shen Y,Yang X,Lin Q,Zhang R,Liu H,Du X,Shi J,Zhang J

更新日期：2019-12-28 00:00:00

abstract：:Although mesenchymal stem cells (MSCs) have been reported to inhibit tumor growth, the mechanism controlling this tumor suppression function is unclear. Here, we report that high-density (40,000 cells/cm2) cultured adipose tissue-derived MSCs (40K-ASCs) expressed interferon (IFN)-β and tumor necrosis factor-related ap...

journal_title：Cancer letters

authors： Jung PY,Ryu H,Rhee KJ,Hwang S,Lee CG,Gwon SY,Kim J,Kim J,Yoo BS,Baik SK,Bae KS,Eom YW

更新日期：2019-01-01 00:00:00

abstract：:Non-steroidal anti-inflammatory drugs (NSAIDs) are used extensively for analgesic and antipyretic treatments. In addition, NSAIDs reduce the risk and mortality to several cancers. Their mechanisms in anti-tumorigenesis are not fully understood, but both cyclooxygenase (COX)-dependent and -independent pathways play a r...

journal_title：Cancer letters

authors： Liggett JL,Zhang X,Eling TE,Baek SJ

更新日期：2014-05-01 00:00:00

abstract：:Semi-permeable magnetic microcapsules containing polyethyleneimine (PEI) have been developed as retrievable carcinogen traps. In vitro, the soluble core PEI and membrane both bound reactive substances of limited aqueous stability, such as from [14C]N-methyl-N-nitrosourea ([14C]NMU), and aqueous stable dyes of molecula...

journal_title：Cancer letters

authors： Povey AC,Bartsch H,O'Neill IK

更新日期：1987-07-01 00:00:00

abstract：:The effects of trisodium nitrilotriacetate monohydrate (Na3 NTA.H2O) nitrilotriacetic acid (H3NTA) and ammonium chloride (NH4Cl) on two-stage urinary bladder carcinogenesis were examined. Carcinogenesis was initiated by administration of 0.2% N-bis (2-hydroxypropyl)-nitrosamine (DHPN) to male Wistar rats in the drinki...

journal_title：Cancer letters

authors： Kitahori Y,Shimoyama T,Ohshima M,Matsuki H,Hashimoto H,Minami S,Konishi N,Hiasa Y

更新日期：1988-12-01 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：:The analogs of benzidine were assay for mutagenicity using Salmonella typhimurium TA-98 and TA-100 and a mouse liver enzyme preparation. Only 4-aminobiphenyl produced both frameshift and base pair substitution mutations and 3,3'-dichlorobenzidine was the only compound which was mutagenic without the mammalian enzyme f...

journal_title：Cancer letters

authors： Lazear EJ,Louie SC

更新日期：1978-01-01 00:00:00

abstract：:We have examined the effect of protease inhibitors on radiation-induced DNA amplification in vitro using an SV40-transformed Chinese hamster embryo cell line. DNA from cells irradiated with X-rays (10 Gy) or ultraviolet radiation (8 J/m2) resulted in an 8-fold or greater amplification of SV40 sequences compared with u...

journal_title：Cancer letters

authors： Flick MB,Kennedy AR

更新日期：1991-02-01 00:00:00

abstract：:Circulating glucose-regulated protein 78 (GRP78) autoantibodies represent potential biomarker of epithelial ovarian cancer. However there is relatively limited identification of these antibodies in response to ovarian cancer. Here, we were interested in characterization of these antibodies and into their role in tumor...

journal_title：Cancer letters

authors： Cohen M,Petignat P

更新日期：2011-10-01 00:00:00

abstract：:Zinc finger transcription factors are DNA-binding proteins that are known to determine the identity of cells by regulating cell-specific gene expression. In addition, mutations in some members of this family have been found to be associated with several neoplasias, including Wilms' tumor and leukemias. Because the mec...

journal_title：Cancer letters

authors： Mesa K,Gebelein B,Cook T,Urrutia R

更新日期：1996-06-05 00:00:00

abstract：:The lack of effective anti-tumor therapy for renal cell carcinoma (RCC) has stimulated the search for novel target whose inhibition could block tumorigenesis. Recently, reduced DLC-1 has been shown to be associated with aggressive and highly metastatic renal cell carcinoma. In this study, the biological role of DLC-1 ...

journal_title：Cancer letters

authors： Zhang T,Zheng J,Jiang N,Wang G,Shi Q,Liu C,Lu Y

更新日期：2009-09-28 00:00:00

abstract：:Internal tandem duplication (ITD) of the juxtamembrane region of FMS-like tyrosine kinase-3 (FLT3) receptor is a common type of mutation in adult acute myeloid leukemia (AML), and patient response to FLT3 inhibitors appears to be transient due to the emergence of drug resistance. We established two sorafenib-resistant...

journal_title：Cancer letters

authors： Huang A,Ju HQ,Liu K,Zhan G,Liu D,Wen S,Garcia-Manero G,Huang P,Hu Y

更新日期：2016-07-28 00:00:00

abstract：:Human microsomal epoxide hydrolase (mEH) catalyzes a key step in the biotransformation of benzo[a]pyrene that yields the highly mutagenic (+)-anti-7,8-diol-9,10 epoxide (BPDE). Two polymorphisms have been described in the coding region of the mEH gene (EPHX1) that produce two protein variants: 113Tyr-->113His (exon 3)...

journal_title：Cancer letters

authors： To-Figueras J,Gené M,Gómez-Catalán J,Piqué E,Borrego N,Corbella J

更新日期：2001-11-28 00:00:00

abstract：:The mutagenic effects of chamuvaritin, dihydrobenzylchalcone isolated from Uvaria chamae, were investigated using Salmonella typhimurium tester strains TA92, TA94--98, TA100--1535, TA1537 and TA1538. The phytochemical was mutagenic in tester strains TA98 and TA100 and required activation by the hepatic S-9 microsomal ...

journal_title：Cancer letters

authors： Uwaifo AO,Okorie DA,Bababunmi EA

更新日期：1979-11-01 00:00:00

abstract：:Since calpain 6 is overexpressed in uterine cervical cancer tissue compared to normal tissue, we sought to define the role of calpain 6 during tumorigenesis. We overexpressed calpain 6 or inhibited calpain 6 in human cervical cancer cells (HeLa cells) and human umbilical vein endothelial cells (HUVECs), and measured c...

journal_title：Cancer letters

authors： Rho SB,Byun HJ,Park SY,Chun T

更新日期：2008-11-28 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：:The development of multidrug resistance (MDR) to chemotherapy remains a major challenge in the treatment of cancer. Numerous mechanisms have been recognized that cause MDR, but one of the most important mechanisms is overexpression of adenosine triphosphate (ATP)-binding cassette (ABC) transporters, through which the ...

journal_title：Cancer letters

authors： Fan YF,Zhang W,Zeng L,Lei ZN,Cai CY,Gupta P,Yang DH,Cui Q,Qin ZD,Chen ZS,Trombetta LD

更新日期：2018-05-01 00:00:00

abstract：:Alteration of the p16 tumor suppressor gene has been implicated as a critical lesion in the molecular pathogenesis of esophageal adenocarcinoma. The aim of this study was to characterize the spectrum of p16 alterations in surgically resected esophageal tissues, comprising histologically normal esophageal squamous and ...

journal_title：Cancer letters

authors： Hardie LJ,Darnton SJ,Wallis YL,Chauhan A,Hainaut P,Wild CP,Casson AG

更新日期：2005-01-20 00:00:00

abstract：:A single administration of enantiomerically pure 11,12-dihydrodiols of dibenzo[a,l]pyrene (DB[a,l]P) on the back of NMRI mice and subsequent chronic treatment with 12-O-tetradecanoylphorbol 13-acetate (TPA) (initiation/promotion assay) revealed strikingly different carcinogenic activities of both enantiomers. Tumor-in...

journal_title：Cancer letters

authors： Luch A,Friesel H,Seidel A,Platt KL

更新日期：1999-03-01 00:00:00

abstract：:We describe an optimized systematic screen of known kinases using osteosarcoma cell lines (KHOS and U-2OS) and a lentiviral-based short hairpin RNA (shRNA) human kinase library. CellTiter 96(R)AQueous One Solution Cell Proliferation Assay was used to measure cell growth and survival. We identified several kinases, inc...

journal_title：Cancer letters

authors： Duan Z,Ji D,Weinstein EJ,Liu X,Susa M,Choy E,Yang C,Mankin H,Hornicek FJ

更新日期：2010-07-28 00:00:00

abstract：:Mutations of Ki-ras and p53 genes in hepatocellular carcinomas (HCCs) induced by the choline deficient L-amino acid defined (CDAA) diet in rats were investigated by polymerase chain reaction (PCR), single strand conformation polymorphism (SSCP) analysis followed by direct sequencing. Male Fischer 344 rats, 6 weeks old...

journal_title：Cancer letters

authors： Tsujiuchi T,Kido A,Nakae D,Takahama M,Majima T,Kobitsu K,Okajima E,Tsutsumi M,Denda A,Konishi Y

更新日期：1996-11-12 00:00:00

abstract：:Stromal factors play a critical role in the development of the mammary gland. Using a three dimensional-coculture model we demonstrate a significant role for stromal fibroblasts in the regulation of normal mammary epithelial morphogenesis and the control of tumor growth. Both soluble factors secreted by fibroblasts an...

journal_title：Cancer letters

authors： Lühr I,Friedl A,Overath T,Tholey A,Kunze T,Hilpert F,Sebens S,Arnold N,Rösel F,Oberg HH,Maass N,Mundhenke C,Jonat W,Bauer M

更新日期：2012-12-28 00:00:00

abstract：:The plant sterol guggulsterone has recently been shown to have anti-tumorigenic potential. This study was designed to investigate the anti-tumor efficacy of guggulsterone and to elucidate its molecular mechanisms in colon cancer. Guggulsterone significantly increased apoptosis in HT-29 cells by activating caspases-3 a...

journal_title：Cancer letters

authors： An MJ,Cheon JH,Kim SW,Kim ES,Kim TI,Kim WH

更新日期：2009-06-28 00:00:00

abstract：:As a newly discovered deubiquitinating enzyme, ubiquitin-specific protease 22 (USP22) is predictive of therapeutic outcomes in individual cancer patients. However, its clinical effects on malignancy and its roles in conferring resistance to EGFR-TKIs (epidermal growth factor receptor-tyrosine kinase inhibitors) in lun...

journal_title：Cancer letters

authors： Zhang H,Han B,Lu H,Zhao Y,Chen X,Meng Q,Cao M,Cai L,Hu J

更新日期：2018-10-01 00:00:00