Methylene blue reverts multidrug resistance: sensitivity of multidrug resistant cells to this dye and its photodynamic action.

abstract：:Tumor-associated mesenchymal stem cells (MSCs) play a critical role in the growth and metastasis of hepatocellular carcinoma (HCC). However, the mechanism underlying the crosstalk between MSCs and HCC cells is not completely understood. Here, HCC cells were treated with or without conditioned medium of MSCs (CM-MSC), ...

journal_title：Cancer letters

authors： Wang W,Wang Q,Huang DB,Sun QK,Wu SS,Zhao YJ,Jia W,Hu DS,He YF

更新日期：2021-01-17 00:00:00

abstract：:Aberrant crypt foci (ACF) have recently been identified as early putative preneoplastic lesions which appear in the colons of experimental animals treated with colon carcinogens. In a recent study the two heterocyclic amines, 2-amino-3-methyl-imidazo[4,5-f]quinoline (IQ) and 2-amino-1-methyl-6-phenyl-imidazo[4,5-b]pyr...

journal_title：Cancer letters

authors： Kristiansen E

更新日期：1996-12-20 00:00:00

abstract：:The tobacco-specific nitrosamine, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) is a lung carcinogen in the rat and believed to be a causative agent for lung cancer in smokers. To exert its carcinogenic potential NNK is metabolically activated by cytochrome P450-catalyzed alpha-hydroxylation. Nicotine and NNK s...

journal_title：Cancer letters

authors： Keyler D,Pentel PR,Kuehl G,Collins G,Murphy SE

更新日期：2003-12-08 00:00:00

abstract：:Oral squamous cell carcinoma (OSCC) is associated with a high potential of tumor recurrence and metastasis, leading to poor prognosis. Cell motility is an important factor in the progression and metastasis of cancers. Recently, Fascin has been linked to tumor progression by induction of cell motility. However, the pre...

journal_title：Cancer letters

authors： Lee TK,Poon RT,Man K,Guan XY,Ma S,Liu XB,Myers JN,Yuen AP

更新日期：2007-09-08 00:00:00

abstract：:Oncoprotein Myc, hetero-dimerized with Max through a b/HLH/Zip region, is a transcription factor that governs important cellular processes such as cell cycle entry, proliferation and differentiation. We found that linoleic acid, isolated from Pollen Typhae, and other unsaturated fatty acids have strong inhibitory effe...

journal_title：Cancer letters

authors： Chung S,Park S,Yang CH

更新日期：2002-12-15 00:00:00

abstract：:The expression of matrix metalloproteinases (MMPs) has been found to be positively correlated to the degree of malignancy in gliomas, indicating that poorly differentiated brain tumor cells produce more MMPs than differentiated ones. We determined the production of active MMP-2 in five glial (U138MG, U373MG, A172, C6,...

journal_title：Cancer letters

authors： Thier M,Roeb E,Breuer B,Bayer TA,Halfter H,Weis J

更新日期：2000-02-28 00:00:00

abstract：:This study was designed to investigate the influence of neonatal selenium (an anticarcinogenic agent) exposure on spontaneous liver tumor formation in adult mice. Pregnant CBA mice were administered selenium during the last week of pregnancy and for ten days following parturition. Selenium significantly reduced the in...

journal_title：Cancer letters

authors： Popova NV

更新日期：2002-05-08 00:00:00

abstract：:Glypican-5 (GPC5) may be a potential tumor suppressor gene in non-small cell lung cancer (NSCLC). The present study aimed to clarify the GPC5 expression pattern and to explore its potential functions in NSCLC. The expression of GPC5 gene was lower in lung cancer tissues compared with adjacent noncancerous tissues. The...

journal_title：Cancer letters

authors： Yang X,Zhang Z,Qiu M,Hu J,Fan X,Wang J,Xu L,Yin R

更新日期：2013-12-01 00:00:00

abstract：:Hyperproliferation of rectal epithelium is characteristic of families at high genetic risk for large bowel neoplasia, but has not been well-documented in families of sporadic colorectal cancer patients. This was studied in 119 such first degree relatives and 44 comparison subjects without this family history. All scre...

journal_title：Cancer letters

authors： Rozen P,Fireman Z,Fine N,Chetrit A,Lubin F

更新日期：1990-05-30 00:00:00

abstract：:Previous studies point to protein kinase C (PKC) isozyme eta as a resistance factor in cancer cells. Therefore, we investigated whether down-regulation of PKCeta with second generation antisense oligonucleotides (ODNs) would sensitise A549 human lung carcinoma cells to cytostatics. The effects were compared to the out...

journal_title：Cancer letters

authors： Sonnemann J,Gekeler V,Ahlbrecht K,Brischwein K,Liu C,Bader P,Müller C,Niethammer D,Beck JF

更新日期：2004-06-25 00:00:00

abstract：:Glioblastoma (GBM) is the most common and aggressive primary brain tumor with great invasiveness and resistance to chemotherapy, which presents a treatment challenge. In this study, we investigated the antitumor effect of Cedrol, a sesquiterpene alcohol isolated from Cedrus atlantica, against GBM cells in vitro and in...

journal_title：Cancer letters

authors： Chang KF,Huang XF,Chang JT,Huang YC,Weng JC,Tsai NM

更新日期：2020-12-28 00:00:00

abstract：:Starvation-induced hypoglycaemia and streptozotocin-induced diabetes suppressed the growth of Ehrlich ascites tumor in mice. The suppression of tumor growth by diabetes was alleviated by administration of insulin. The number of glucose carriers on tumour cells was found to be reduced in diabetes and partial resumption...

journal_title：Cancer letters

authors： Fung KP,Chan TW,Choy YM

更新日期：1985-09-30 00:00:00

abstract：:In all organisms, heat-shock proteins (HSPs) provide an ancient defense system. These proteins act as molecular chaperones by assisting proper folding and refolding of misfolded proteins and aid in the elimination of old and damaged cells. HSPs include Hsp100, Hsp90, Hsp70, Hsp40, and small HSPs. Through its substrate...

journal_title：Cancer letters

authors： Kumar S,Stokes J 3rd,Singh UP,Scissum Gunn K,Acharya A,Manne U,Mishra M

更新日期：2016-04-28 00:00:00

abstract：:It has been nearly 9years since the FDA (Food and Drug Administration) approved the first anti-angiogenic drug (bevacizumab) for treatment of metastatic colorectal cancer. Other angiogenic inhibitors have since been approved or are in different stages of clinical trials. However, continued clinical and preclinical inv...

journal_title：Cancer letters

authors： Shojaei F

更新日期：2012-07-28 00:00:00

abstract：:Tocopherol, a well known tissue anti-oxidant, given before local X-ray irradiation of 2 transplantable rat tumours was previously found to increase significantly the effect of irradiation. In the present study tocopherol did not influence the development of tumour necroses during growth of a transplantable rat hepatom...

journal_title：Cancer letters

authors： Kågerud A,Klintenberg C,Lund N,Peterson HI

更新日期：1978-10-01 00:00:00

abstract：:Treatment of HeLa cells with the polyamine biosynthesis inhibitors difluoromethylornithine (DFMO) and/or methylglyoxal bis(guanylhydrazone) (MGBG) results in marked depression in levels of the cellular polyamines putrescine, spermidine and spermine. Cells in this polyamine-depleted state exhibited increased sensitivit...

journal_title：Cancer letters

authors： Snyder RD,Bhatt S

更新日期：1993-08-16 00:00:00

abstract：:Pancreatic cancer is an aggressive malignancy and unresponsive to conventional chemotherapies. Here, the anti-inflammatory and anti-tumor effects of embelin on pancreatic cancer were investigated. Embelin significantly attenuated cells invasion, proliferation and induced apoptosis through inhibition of STAT3 and activ...

journal_title：Cancer letters

authors： Peng M,Huang B,Zhang Q,Fu S,Wang D,Cheng X,Wu X,Xue Z,Zhang L,Zhang D,Da Y,Dai Y,Yang Q,Yao Z,Qiao L,Zhang R

更新日期：2014-11-28 00:00:00

abstract：:We induced tolerance to hexadecylphosphocholine (HePC) in the human epidermoid tumor cell line, KB. After 70 weeks of adaptation, the IC50 of HePC in the resistant cells KBr was 32-fold higher than in parental KB cells, and they were 30-fold more resistant to another ether lipid analogue, ET-18-OCH3. The KBr cells als...

journal_title：Cancer letters

authors： Fu D,Shi Z,Wang Y

更新日期：1999-08-03 00:00:00

abstract：:Improvements in technologies to yield purer circulating tumor cells (CTCs) will enable a broader range of clinical applications. We have previously demonstrated the use of a commercially available cell-adhesion matrix (CAM) assay to capture invasive CTCs (iCTCs). To improve the purity of the isolated iCTCs, here we us...

journal_title：Cancer letters

authors： Premasekharan G,Gilbert E,Okimoto RA,Hamirani A,Lindquist KJ,Ngo VT,Roy R,Hough J,Edwards M,Paz R,Foye A,Sood R,Copren KA,Gubens M,Small EJ,Bivona TG,Collisson EA,Friedlander TW,Paris PL

更新日期：2016-09-28 00:00:00

abstract：:Intravenous methotrexate (MTX) therapy is widely used for treatment of various neoplastic diseases in children. The optimization of the MTX dose and/or the subsequent leucovorin rescue is based on pharmacokinetic data calculated from plasma concentrations collected after cessation of the MTX administration. The influe...

journal_title：Cancer letters

authors： Eksborg S,Albertioni F,Rask C,Beck O,Palm C,Schroeder H,Peterson C

更新日期：1996-11-29 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：:N-nitrosobis(2-oxopropyl)amine (BOP)-induced pancreatic adenocarcinomas in Syrian hamsters produce considerable amounts of mucin. The mucin is immunogenic in rabbits and is predominately of A blood group antigenic specificity, as determined by immunodiffusion in agar gel. Indirect immunofluorescence studies with human...

journal_title：Cancer letters

authors： Runge RG,Pour P

更新日期：1980-10-01 00:00:00

abstract：:YTH domain containing 2 (YTHDC2) is a member of the DExD/H-box family of ATP-dependent RNA helicases. We previously found that YTHDC2 expression is up-regulated in several human cancer cells. In this study, we demonstrate novel roles for YTHDC2 in metastasis of colon tumor cells via translation-dependent pathway. Knoc...

journal_title：Cancer letters

authors： Tanabe A,Tanikawa K,Tsunetomi M,Takai K,Ikeda H,Konno J,Torigoe T,Maeda H,Kutomi G,Okita K,Mori M,Sahara H

更新日期：2016-06-28 00:00:00

abstract：:A tissue field of somatic genetic alterations precedes the histopathological phenotypic changes of carcinoma. Genomic changes could be of potential use in the diagnosis and prognosis of pre-invasive squamous head and neck carcinoma (HNSCC) lesions and as markers for cancer risk assessment. Studies of sequential molecu...

journal_title：Cancer letters

authors： Worsham MJ,Stephen JK,Chen KM,Havard S,Shah V,Gardner G,Schweitzer VG

更新日期：2014-01-28 00:00:00

abstract：:Treatment of glioblastoma remains a challenge in neuro-oncology. We investigated if treatment with neural stem cells engineered to express membrane-bound TRAIL (NSCs-mTRAIL) alone or in combination with proteasome inhibitors is a feasible therapeutic approach for experimental glioma. Glioma cells showed resistance to ...

journal_title：Cancer letters

authors： Balyasnikova IV,Ferguson SD,Han Y,Liu F,Lesniak MS

更新日期：2011-11-28 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：:Cancer stem cells are known for their inherent resistance to therapy. Here we investigated whether normal stem cells with acquired resistance to stress can be used to identify novel markers of cancer stem cells. For this, we generated a human embryonic stem cell line resistant to Trichostatin A and analyzed changes in...

journal_title：Cancer letters

authors： Mousa SA,Sudha T,Dyskin E,Dier U,Gallati C,Hanko C,Chittur SV,Rebbaa A

更新日期：2010-03-28 00:00:00

abstract：:In the last year, several evidences indicated that pharmacological manipulation of relevant signaling pathways could selectively affect gene expression to influence cell fate. These findings render of extreme importance the elucidation of how external stimuli are transduced to mediate chromatin modifications, resultin...

journal_title：Cancer letters

authors： Chiacchiera F,Simone C

更新日期：2008-06-28 00:00:00

abstract：:The tumorigenicity of 4-aminobiphenyl (4-ABP) and 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) were studied in combination with caloric restriction in the male neonatal CD1 mouse bioassay. 4-ABP and PhIP exhibited moderate and weak tumorigenicity, respectively, in ad libitum fed mice; however, none of the ca...

journal_title：Cancer letters

authors： Von Tungeln LS,Bucci TJ,Hart RW,Kadlubar FF,Fu PP

更新日期：1996-07-12 00:00:00

abstract：:The effect of glucocorticoids on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inhibition of gap-junctional intercellular communication (GJIC) and morphological transformation in Syrian hamster embryo (SHE) cells was examined. Fluocinolone acetonide (FA) and dexamethasone (DEX) almost completely suppressed the ef...

journal_title：Cancer letters

authors： Roseng LE,Rivedal E

更新日期：1993-08-16 00:00:00