Cancer chemopreventive activity of euglobal-G1 from leaves of Eucalyptus grandis.

abstract：:The porphyrin content of cells labelled with hematoporhyrin derivative (Hpd) and tumours of mice injected with Hpd was analysed by means of high pressure liquid chromatography (HPLC). The components of Hpd may be classified in 3 groups: (A) Components with a high fluorescence quantum yield and with sharp peaks in the ...

journal_title：Cancer letters

authors： Moan J,Sommer S

更新日期：1983-12-01 00:00:00

abstract：:Bone metastasis is a major cause of prostate cancer (PCa) mortality. Although docetaxel chemotherapy initially extends patients' survival, in most cases PCa becomes chemoresistant and eventually progresses without a cure. In this study, we developed a novel small-molecule compound BKM1972, which exhibited potent in vi...

journal_title：Cancer letters

authors： Chen Y,Gera L,Zhang S,Li X,Yang Y,Mamouni K,Wu AY,Liu H,Kucuk O,Wu D

更新日期：2019-04-01 00:00:00

abstract：:Cancer stem cells (CSCs) are a small subpopulation of tumor cells critical for tumor development. Their unique abilities, such as self-renewal, have resulted in tumor resistance to various cancer treatments, including traditional chemotherapy and latest immunotherapy. CSCs-targeting therapy is a promising treatment to...

journal_title：Cancer letters

authors： Shen C,Yang C,Xia B,You M

更新日期：2021-03-01 00:00:00

abstract：:The aim of the study was to prove whether or not an association exists between the heat shock protein 70 (hsp70) and drug resistance. Tumor samples of 90 patients with previously untreated non-small lung carcinomas were investigated immunohistochemically for expression of resistance related proteins. Additionally, res...

journal_title：Cancer letters

authors： Volm M,Koomägi R,Mattern J,Stammler G

更新日期：1995-08-16 00:00:00

abstract：:Mangiferin, a naturally occurring glucosylxanthone, was assessed for its immunomodulatory potential. The phytochemical induced extensive in vitro proliferation of murine splenocytes and thymocytes at the doses of 5-40 micrograms ml-1. Suppression of the proliferative response of the cells was observed with higher dose...

journal_title：Cancer letters

authors： Chattopadhyay U,Das S,Guha S,Ghosal S

更新日期：1987-11-01 00:00:00

abstract：:Well-differentiated liposarcomas (WDLPS) and dedifferentiated liposarcomas are cytogenetically characterized by the presence of supernumerary ring or giant chromosomes containing amplified material from the 12q14-15 region. These chromosomes contain neocentromeres, which are able to bind the kinetochore proteins and t...

journal_title：Cancer letters

authors： Italiano A,Maire G,Sirvent N,Nuin PA,Keslair F,Foa C,Louis C,Aurias A,Pedeutour F

更新日期：2009-01-18 00:00:00

abstract：:Sobatum, the active fraction of the plant Solanum trilobatum was obtained from the petroleum ether/ethyl acetate (75:25) extractable portion. Sobatum was proven to be an anticancer agent by in vitro and in vivo methods. The aim of this study is to evaluate the effect of Sobatum on radiation-induced toxicity in mice. I...

journal_title：Cancer letters

authors： Mohanan PV,Devi KS

更新日期：1998-01-30 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：:The epidermis of the skin is a multilayered stratified epithelium whose primary function is to provide a barrier against our external environment. As a result, cells in the epidermis are subject to constant assault from environmental pathogens, many of which can cause deleterious mutations. However, most of these muta...

journal_title：Cancer letters

authors： Thieu K,Ruiz ME,Owens DM

更新日期：2013-09-10 00:00:00

abstract：:Application of a single high dose of 7,12-dimethylbenz[a]anthracene (DMBA, 1 mg) or N-nitrosomethylurea (NMU, 0.4 mg) to the ears of either athymic nu/nu or phenotypically normal nu/+ mice (BALB/c background) resulted in the appearance of cutaneous sebaceous adenomas as well as squamous cell tumors, both at the site o...

journal_title：Cancer letters

authors： Rice JM,Anderson LM

更新日期：1986-12-01 00:00:00

abstract：:The in vitro induction of sister chromatid exchanges (SCEs) in Chinese hamster ovary (CHO) cells by the polycyclic hydrocarbons, 7,12-dimethylbena[a]anthracene and 3-methylcholanthrene and some of the related dihydrodiols was investigated. Increased numbers of SCEs were seen in the chromosomes of cells exposed to non-...

journal_title：Cancer letters

authors： Pal K,Grover PL,Sims P

更新日期：1979-06-01 00:00:00

abstract：:Intrahepatic cholangiocarcinoma (ICC) is the second most common primary liver cancer. Appropriate treatment of this aggressive and heterogeneous cancer requires accurate staging and prognostic stratification, as does patient selection for clinical trials. Over the past two decades, several staging systems and prognost...

journal_title：Cancer letters

authors： Cheng Z,Lei Z,Shen F

更新日期：2019-09-28 00:00:00

abstract：:Human cancer cells in vitro (NHIK 3025), derived from a carcinoma in situ are inactivated when exposed to visible light in the presence of hematoporphyrin. Irradiation at 4 degrees C results in much more efficient inactivation than irradiation at 37 degrees C. Furthermore, a given total light dose is more efficient wh...

journal_title：Cancer letters

authors： Moan J,Christensen T

更新日期：1979-05-01 00:00:00

abstract：:To obtain an optimal condition for ultrasound (US)-induced apoptosis that could be useful for cancer therapy, we applied low intensity pulsed US to sonicate U937 cells in vitro. Cells were then incubated at different time intervals before measuring apoptosis. The apoptosis was assessed by DNA fragmentation and phospha...

journal_title：Cancer letters

authors： Feril LB Jr,Kondo T,Cui ZG,Tabuchi Y,Zhao QL,Ando H,Misaki T,Yoshikawa H,Umemura S

更新日期：2005-04-28 00:00:00

abstract：:The effect of dietary intake of an extract of the spice plant Rosmarinus officinalis L. on 7,12-dimethylbenz[a]anthracene (DMBA)-induced mammary tumorigenesis and on the in vivo formation of mammary DMBA-DNA adducts was evaluated. Supplementation of a semi-purified diet with 1.0% (by wt.) rosemary extract resulted in ...

journal_title：Cancer letters

authors： Singletary KW,Nelshoppen JM

更新日期：1991-11-01 00:00:00

abstract：:The cell inactivating effect of cis-dichlorodiammineplatinum(II) in combination with 2-substituted benzaldehyde derivatives was tested using cultured human NHIK 3025 cells. Simultaneous drug combination with benzaldehyde protected cells from cis-DDP-induced cell inactivation in a dose-dependent manner. Substitution wi...

journal_title：Cancer letters

authors： Dornish JM,Pettersen EO

更新日期：1989-07-01 00:00:00

abstract：:A RNA-dependent DNA polymerase (RTase) was purified from human osteosarcoma tissue by successive column chromatography of the microsomal fraction on DEAE-cellulose (DE-23 and DE-52) and phosphocellulose. The purified enzyme has a molecular weight of about 68,000, a pH optimum of 8.1, a Mg2+ optimum of 0.8 mM, Mn2+ opt...

journal_title：Cancer letters

authors： Ebener U,Welte K,Chandra P

更新日期：1979-08-01 00:00:00

abstract：:Various dose levels of benzo[a]pyrene (BP) were tested on short-term cultured foetal hamster lung cells for transforming effects in vitro in 6 similar experiments. The statistical evaluation of the results indicated a weak reproducibility (P = 0.09). Factors which inherently influence such reproducibility were conside...

journal_title：Cancer letters

authors： Richter-Reichhelm HB,Emura M,Schneider P,Mohr U

更新日期：1979-11-01 00:00:00

abstract：:The hypoxic microenvironment is well-characterized in hepatocellular carcinoma (HCC). Delineation of hypoxia-responsive events is an integral part to understand the pathogenesis of HCC. We studied the functional role and clinical relevance of Stanniocalcin 1 (STC1), a hypoxia-induced molecular target, in HCC. In our c...

journal_title：Cancer letters

authors： Chan KK,Leung CO,Wong CC,Ho DW,Chok KS,Lai CL,Ng IO,Lo RC

更新日期：2017-09-10 00:00:00

abstract：:Fanconi Anemia has recently been associated with a high risk of head and neck squamous cell carcinoma (HNSCC). Inactivation of the Fanconi Anemia (FANC-BRCA) pathway via promoter methylation of the FANCF gene has been proposed to be responsible for variation in cisplatinum (CDDP) sensitivity seen in ovarian and HNSCCs...

journal_title：Cancer letters

authors： Snyder ER,Ricker JL,Chen Z,Waes CV

更新日期：2007-01-08 00:00:00

abstract：:Co-transfer of immunomodulatory and antiproliferative genes may be the basis for new strategies to potentiate tumor regression. In this study, we evaluated the in vitro effect of the introduction of human wild-type p53, granulocyte-macrophage colony-stimulating factor (GM-CSF), and B7-1 genes via recombinant adenoviru...

journal_title：Cancer letters

authors： Qiu ZH,Wu CT,Lao MF,Pan LZ,Li YM

更新日期：2002-08-28 00:00:00

abstract：:Glioblastoma multiforme (GBM) is the most common malignant brain tumor, which remains incurable. Plant extracts are a potential source of potent anticancer medicines. In this study, we investigated the effect of isolinderalactone from Lindera aggregata on tumor growth using U-87 human glioblastoma cells. Treatment wit...

journal_title：Cancer letters

authors： Hwang JY,Park JH,Kim MJ,Kim WJ,Ha KT,Choi BT,Lee SY,Shin HK

更新日期：2019-02-28 00:00:00

abstract：:Osteosarcoma is the most common osteogenic malignant tumor characterized by a high level of malignancy, relapse, metastasis and poor prognosis. S100A4 has been implicated in the proliferation, cell cycle progression, and metastasis of many malignant tumors, although the roles of S100A4 in osteosarcoma have not been do...

journal_title：Cancer letters

authors： Ma X,Yang Y,Wang Y,An G,Lv G

更新日期：2010-12-28 00:00:00

abstract：:Citral inhibits the formation of retinoic acid from retinol in mouse epidermis. Since skin-carcinogenesis is sensitive to retinoid status, and retinoic acid may be the active form of vitamin A in the epidermis, citral was tested for its ability to modulate tumor promotion in a two-stage skin-carcinogenesis study in ha...

journal_title：Cancer letters

authors： Connor MJ

更新日期：1991-01-01 00:00:00

abstract：:The capacity of the human adrenal gland to metabolize various xenobiotics was investigated. Adrenal microsomal and mitochondrial preparations showed a maximal absorption at 450 nm for dithionite-reduced cytochromes in the presence of carbon monoxide. Occasionally, absorption maxima at 448 nm were observed with both mi...

journal_title：Cancer letters

authors： Papadopoulos D,Seidegard J,Rydström J

更新日期：1984-02-01 00:00:00

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：:Transcripts from the murine gene family proliferin, which are increased by a wide assortment of chemical promoters of C3H10T1/2 cell morphological transformation, were shown to be induced by tri-n-butyltin chloride at concentrations above 50 nM. Two-stage transformation assays, with 3-methylcholanthrene as inducer and...

journal_title：Cancer letters

authors： Parfett CL,Pilon R

更新日期：1993-07-30 00:00:00

abstract：:Heat shock protein 90 (HSP90) is a highly conserved molecular chaperone that facilitates the maturation of a wide range of proteins, and it has been recognized as a crucial facilitator of oncogene addiction and cancer cell survival. Although HSP90 function is regulated by a variety of post-translational modifications,...

journal_title：Cancer letters

authors： Hamamoto R,Toyokawa G,Nakakido M,Ueda K,Nakamura Y

更新日期：2014-08-28 00:00:00

abstract：:Breast cancer cells in their virulent undifferentiated state are characterized by lack of functional estrogen receptors (ER) and/or progesterone receptors (PR) as well as relatively low levels of other normal differentiation markers such as milk proteins and lipid droplets. To date, no method for in situ elevation of ...

journal_title：Cancer letters

authors： Adan Y,Goldman Y,Haimovitz R,Mammon K,Eilon T,Tal S,Tene A,Karmel Y,Shinitzky M

更新日期：2003-05-08 00:00:00

abstract：:Several enzymes metabolize the toxic aldehydes produced during lipid peroxidation, such as 4-hydroxynonenal. During carcinogenesis induced by diethylnitrosamine in rat liver, an increase in aldehyde dehydrogenase, in comparison with normal liver, has already been shown. This paper demonstrates that, although to a less...

journal_title：Cancer letters

authors： Canuto RA,Muzio G,Maggiora M,Biocca ME,Dianzani MU

更新日期：1993-02-01 00:00:00