P-glycoprotein expression by human colonic tumor cells influences the growth of tumor cells in vitro.

abstract：:The regulator of G protein signaling 10 (RGS10) protein is a GTPase activating protein that accelerates the hydrolysis of GTP and therefore canonically inactivates G proteins, ultimately terminating signaling. Rheb is a small GTPase protein that shuttles between its GDP- and GTP-bound forms to activate mTOR. Since RGS...

journal_title：Cancer letters

authors： Altman MK,Alshamrani AA,Jia W,Nguyen HT,Fambrough JM,Tran SK,Patel MB,Hoseinzadeh P,Beedle AM,Murph MM

更新日期：2015-12-01 00:00:00

abstract：:Repeated application of the tumor promoter 12-O-tetradecanoyl phorbol-13-acetate (TPA) to the skin of mice previously treated with an initiating dose of the carcinogen 7,12-dimethylbenz[a] anthracene has been shown to lead to an increased incidence of papilloma. The studies presented here describe a modified murine tw...

journal_title：Cancer letters

authors： Devens BH,Lundak RL,Byus CV

更新日期：1984-01-01 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：:Sonodynamic therapy (SDT) is a form of ultrasound therapy that has been shown to preferentially damage malignant cells based on the relatively enlarged size and altered cytology of neoplastic cells in comparison to normal cells. This study sought to determine whether cytoskeletal-directed agents that either disrupt (c...

journal_title：Cancer letters

authors： Trendowski M,Wong V,Zoino JN,Christen TD,Gadeberg L,Sansky M,Fondy TP

更新日期：2015-05-01 00:00:00

abstract：:A physiologically relevant glioma tumor model is important to the study of disease progression and screening drug candidates. However, current preclinical glioma models lack the brain microenvironment, and the established tumor cell lines do not represent glioma biology and cannot be used to evaluate the therapeutic e...

journal_title：Cancer letters

authors： Zhang L,Liu F,Weygant N,Zhang J,Hu P,Qin Z,Yang J,Cheng Q,Fan F,Zeng Y,Tang Y,Li Y,Tang A,He F,Peng J,Liao W,Hu Z,Li M,Liu Z

更新日期：2021-03-01 00:00:00

abstract：:Aberrant activation of mammalian target of rapamycin complex 1 (mTORC1), caused by loss or inactivation of TSC1/TSC2 protein complex, leads to negative feedback inhibition of Akt. The exact mechanisms of this process are still not fully understood. Here we present evidence for the involvement of STAT3, a known mTORC1 ...

journal_title：Cancer letters

authors： Zha X,Hu Z,He S,Wang F,Shen H,Zhang H

更新日期：2011-12-27 00:00:00

abstract：:One of the frontiers in cancer personalized-medicine aims at glycosylation. Cells are covered with a dense sugar coat of glycolipids, glycoproteins and free glycans. In cancer, the characteristic cell surface glycosylation is frequently transformed due to altered expression of glycan-modifying enzymes. This often lead...

journal_title：Cancer letters

authors： Padler-Karavani V

更新日期：2014-09-28 00:00:00

abstract：:The formation of nitroso compounds and mutagens from 5 nitrogen-containing drugs (cinnarizine, ethambutol, piromidic acid, pyridinol carbamate and tiaramide) by drug/nitrite interaction was examined. On the reaction of 50 micrometers drug and 500 micrometers nitrite at pH 3.0--3.4 and 37 degrees C for 4 h, the conside...

journal_title：Cancer letters

authors： Takeda Y,Kanaya H

更新日期：1982-01-01 00:00:00

abstract：:Thioproline (TPRO), an effective nitrite trapping agent in vivo, was examined for its detoxifying ability in rats against N-nitrosodimethylamine (NDMA) and N-nitrosocimetidine (NCIM). When NDMA (37-101.5 mg/kg) was administered with TPRO (532 mg/kg), no influence of TPRO on NDMA-induced lethality and histological resu...

journal_title：Cancer letters

authors： Frank N,Tsuda M,Ohgaki H,Frei E,Kato T,Sato S

更新日期：1990-04-30 00:00:00

abstract：:Poly(ADP-ribose) synthetase activity in human cervical cancer cell nuclei was found to be approximately twice that of normal cervical cell nuclei. Using antipoly(ADP-ribose) antibody, frozen section of normal tissue were stained by indirect-immunofluorescence and it was demonstrated that the fluorescence of nuclei in ...

journal_title：Cancer letters

authors： Fukushima M,Kuzuya K,Ota K,Ikai K

更新日期：1981-12-01 00:00:00

abstract：:The p53 signaling pathway plays critical roles in determining the radio-sensitivity of normal tissues but is frequently inactivated in cancer. In various cancer cells, p53 has different effects on radio-sensitivity through complex mechanisms. Acetylation of p53 is an important means of post-translational modifications...

journal_title：Cancer letters

authors： Zhang J,Shen L,Sun LQ

更新日期：2015-07-28 00:00:00

abstract：:CD271, known as a neurotrophin receptor, is expressed in various cancers such as hypopharyngeal cancer (HPC) and melanoma. We recently reported that CD271 is a cancer-stem-cell biomarker of HPC, and that its expression is essential for cancer-cell proliferation and is correlated with a poor prognosis in this disease. ...

journal_title：Cancer letters

authors： Morita S,Mochizuki M,Wada K,Shibuya R,Nakamura M,Yamaguchi K,Yamazaki T,Imai T,Asada Y,Matsuura K,Sugamura K,Katori Y,Satoh K,Tamai K

更新日期：2019-10-01 00:00:00

abstract：:Radiofrequency ablation (RFA) is widely accepted as a first-line interventional oncology approach for hepatocellular carcinoma (HCC) and has the advantages of high treatment efficacy and low complication risk. Local control rates equivalent to hepatic resection can be reached by RFA alone when treating small HCCs (<2 ...

journal_title：Cancer letters

authors： Chen L,Sun J,Yang X

更新日期：2016-01-01 00:00:00

abstract：:We evaluated the influence of age and sex on rectal cell proliferation of 69 hospital controls and 66 patients with colorectal adenomas, by means of incubation of rectal biopsies with tritiated thymidine and autoradiography. In particular, we evaluated the labeling frequency in the upper 40% of rectal crypts (0 h), ac...

journal_title：Cancer letters

authors： Paganelli GM,Santucci R,Biasco G,Miglioli M,Barbara L

更新日期：1990-09-01 00:00:00

abstract：:This study investigated the relationship between clinicopathological or immunohistochemical factors and postoperative prognosis for Dukes' C colorectal cancer. Short-term survivors died from cancer within 2 years of surgery, whereas long-term survivors were disease-free for over 10 years. The groups differed in Ki-67 ...

journal_title：Cancer letters

authors： Ishida H,Miwa H,Tatsuta M,Masutani S,Imamura H,Shimizu J,Ezumi K,Kato H,Kawasaki T,Furukawa H,Kawakami H

更新日期：2004-04-15 00:00:00

abstract：:Sorafenib is the approved systemic drug of choice for advanced hepatocellular carcinoma (HCC), but has demonstrated limited benefits because of drug resistance. 2-Methoxyestradiol (2ME2) has been shown to be a promising anticancer drug against various types of cancers and acts by dysregulating hypoxia-inducible factor...

journal_title：Cancer letters

authors： Ma L,Li G,Zhu H,Dong X,Zhao D,Jiang X,Li J,Qiao H,Ni S,Sun X

更新日期：2014-12-01 00:00:00

abstract：:An apoptosis-inducing protein with molecular weight of 60 kDa has been purified from fetal bovine serum. The N-terminal amino acid sequence of this protein (e.g. I-P-L-D-P-V-A-G-Y-K) reveals that it is bovine fetuin, a fetal protein functioning to control embryogenesis. The apoptosis-inducing activity of fetuin is tot...

journal_title：Cancer letters

authors： Yu CL,Tsai MH

更新日期：2001-05-26 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：:Lectins are suitable tools for investigating the glycoconjugate characteristics of metastatic cells. In the present study, we investigated whether there were differences between high metastatic T3 cells and a low metastatic isolate in their reactivities to several lectins specific for galactosyl and sialyl groups. Ana...

journal_title：Cancer letters

authors： Mannori G,Mugnai G,Ruggieri S

更新日期：1991-08-01 00:00:00

abstract：:The activity of cancer procoagulant (CP), prothrombin time (PT), activated partial thromboplastin time (APTT), the concentration of thrombin-antithrombin complexes (TAT) and the concentration of fibrinogen were analysed in blood of breast cancer patients scheduled for surgery. The serum level of CP activity was depend...

journal_title：Cancer letters

authors： Mielicki WP,Tenderenda M,Rutkowski P,Chojnowski K

更新日期：1999-11-01 00:00:00

abstract：:We previously showed that polyphyllin D (PD) produced a stronger apoptotic effect in R-HepG2 with multi-drug resistance (MDR) than that in its parent HepG2 cells without MDR. In this study, PD was found to elicit mitochondrial fragmentation in live cells by using total internal reflection fluorescence microscopy (TIRF...

journal_title：Cancer letters

authors： Ong RC,Lei J,Lee RK,Cheung JY,Fung KP,Lin C,Ho HP,Yu B,Li M,Kong SK

更新日期：2008-03-18 00:00:00

abstract：:Cancer metabolism has been extensively investigated by various tools, and the fact of diverse metabolic reprogramming in cancer cells has been gradually unveiled. In this review, we discuss some contributions in cancer metabolism by general proteomic analysis and post-translational modification analysis using mass spe...

journal_title：Cancer letters

authors： Zhou W,Liotta LA,Petricoin EF

更新日期：2015-01-28 00:00:00

abstract：:The quality and frequency of mutations in PTEN gene were assessed in 59 carcinomas and 6 hyperplasias of the endometrium in women. Screening for mutations was done in all exons of PTEN gene by the PCR-SSCP analysis and DNA sequencing. Results were correlated with histological status and clinical features of endometria...

journal_title：Cancer letters

authors： Konopka B,Paszko Z,Janiec-Jankowska A,Goluda M

更新日期：2002-04-08 00:00:00

abstract：:Nitrosatability of dried Nigerian vegetables and spices was investigated under simulated gastric conditions. N-Nitroso-dimethylamine (NDMA) was the only volatile nitrosamine found above the preformed level except in ugwu where N-nitroso-piperidine (2.3 ppb) was also detected. The lowest NDMA value of 0.4 ppb was found...

journal_title：Cancer letters

authors： Atawodi SE,Maduagwu EN,Preussmann R,Spiegelhalder B

更新日期：1991-05-24 00:00:00

abstract：:Cancer stem cells (CSCs) represent a minor population that have clonal tumor initiation and self-renewal capacity and are responsible for tumor initiation, metastasis, and therapeutic resistance. CSCs reside in niches, which are composed of diverse types of stromal cells and extracellular matrix components. These stro...

journal_title：Cancer letters

authors： Saijo A,Goto H,Nakano M,Mitsuhashi A,Aono Y,Hanibuchi M,Ogawa H,Uehara H,Kondo K,Nishioka Y

更新日期：2018-05-01 00:00:00

abstract：:Nitric oxide synthase (NOS), an important bioregulator of a variety of biological processes, is overexpressed in colonic tumors of humans and rodents. In this study, effects of L-N(G)-nitroarginine methyl ester (L-NAME), a NOS inhibitor, on development of aberrant crypt foci (ACF) induced by azoxymethane (AOM) in F344...

journal_title：Cancer letters

authors： Kawamori T,Takahashi M,Watanabe K,Ohta T,Nakatsugi S,Sugimura T,Wakabayashi K

更新日期：2000-01-01 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：:Artesunate (ART), a semi-synthetic derivative of artemisinin extracted from the Chinese herb Artemisia annua, is a safe and effective antimalarial drug. ART has now been analyzed for its anti-angiogenic activity in vivo and in vitro. The anti-angiogenic effect in vivo was evaluated on chicken chorioallantoic membrane ...

journal_title：Cancer letters

authors： Huan-huan C,Li-Li Y,Shang-Bin L

更新日期：2004-08-10 00:00:00

abstract：:Cultures of normal human peripheral blood lymphocytes stimulated by phytohaemagglutinin (PHA) were treated with withaferin A and examined by an electron microscope. The compound was found to affect the spindle microtubules of cells in metaphase. There were no intact pole-to-pole microtubules or pole-to-kinetochore mic...

journal_title：Cancer letters

authors： Shohat B,Ben-Bassat M,Shaltiel A,Joshua H

更新日期：1976-11-01 00:00:00

abstract：:The highly conserved RNA-binding protein, Lin28, is involved in many biological processes, including development, reprogramming, pluripotency, and metabolism. Importantly, Lin28 functions as an oncogene, promoting tumor progression and metastasis in various human cancers. Lin28 can regulate gene expression either by d...

journal_title：Cancer letters

authors： Jiang S,Baltimore D

更新日期：2016-05-28 00:00:00