Role of epigenetic and miR-22 and miR-29b alterations in the downregulation of Mat1a and Mthfr genes in early preneoplastic livers in rats induced by 2-acetylaminofluorene.

abstract：:We previously reported that the Wnt pathway is preferentially activated in basal-like breast cancer. However, the mechanisms by which the Wnt pathway regulates down-stream targets in basal-like breast cancer, and the biological significance of this regulation, are poorly understood. In this study, we found that c-Myc ...

journal_title：Molecular carcinogenesis

authors： Xu J,Chen Y,Huo D,Khramtsov A,Khramtsova G,Zhang C,Goss KH,Olopade OI

更新日期：2016-05-01 00:00:00

abstract：:Heat shock protein 60 (HSP60) overexpresses in various types of cancer, but its expression levels and functions in hepatocellular carcinoma (HCC) are still in dispute. We aim to clarify this issue and examine whether HSP60 could be a therapeutic target for HCC. We found drastically enhanced cell apoptosis and suppress...

journal_title：Molecular carcinogenesis

authors： Huang YH,Lin KH,Yu JS,Wu TJ,Lee WC,Chao CC,Pan TL,Yeh CT

更新日期：2018-09-01 00:00:00

abstract：:LEC (Long-Evans with a cinnamon-like coat color) rats develop hepatocellular carcinomas (HCCs) spontaneously. We examined mutations of codons 12, 13, and 61 of the Ha-ras, Ki-ras, and N-ras genes in four HCCs by the polymerase chain reaction (PCR)-single-stranded DNA direct sequencing method. No ras gene mutations wer...

journal_title：Molecular carcinogenesis

authors： Fujimoto Y,Ishizaka Y,Tahira T,Sone H,Takahashi H,Enomoto K,Mori M,Sugimura T,Nagao M

更新日期：1991-01-01 00:00:00

abstract：:Malignant rhabdoid tumors (MRTs) are poorly differentiated pediatric cancers that arise in various anatomical locations and have a very poor outcome. The large majority of these malignancies are caused by loss of function of the SNF5/INI1 component of the SWI/SNF chromatin remodeling complex. However, the mechanism of...

journal_title：Molecular carcinogenesis

authors： DelBove J,Kuwahara Y,Mora-Blanco EL,Godfrey V,Funkhouser WK,Fletcher CD,Van Dyke T,Roberts CW,Weissman BE

更新日期：2009-12-01 00:00:00

abstract：:We previously found that the T24 Ha-ras oncogene induces metastatic ability in NIH 3T3 cells and that this change depends on expression of the ras oncogene. As part of our studies on mechanisms by which ras may induce metastasis, we investigated expression and activity of two cysteine proteinases, cathepsin L (major e...

journal_title：Molecular carcinogenesis

authors： Chambers AF,Colella R,Denhardt DT,Wilson SM

更新日期：1992-01-01 00:00:00

abstract：:The incidence and pattern of mutations of the ras oncogenes and the p53 tumor suppressor gene have been shown to differ among different cancer types and even among the same cancer types with different etiological backgrounds. For example, in a previous study we showed that not only the etiology but also the incidence ...

journal_title：Molecular carcinogenesis

authors： Kiba T,Tsuda H,Pairojkul C,Inoue S,Sugimura T,Hirohashi S

更新日期：1993-01-01 00:00:00

abstract：:We transformed JB6P+ cells with prolonged intermittent low-dose UVB radiation or prolonged exposure to low-dose H(2)O(2) or CdCl(2). Stable transformation was confirmed by an anchorage-independence assay. The JB6P+ transformants formed more colonies (approximately six folds) in soft agar as compared to their JB6P+ par...

journal_title：Molecular carcinogenesis

authors： Yang S,Misner B,Chiu R,Meyskens FL Jr

更新日期：2008-07-01 00:00:00

abstract：:In our previous study, we showed that miR-125a directly targeted a WT1 oncogene, which was overexpressed in leukemia and various kinds of solid tumors including lung, breast, gastric, and colon cancers, and brain tumors and was deeply involved in leukemogenesis and tumorigenesis and that miR-125a knockout mice overexp...

journal_title：Molecular carcinogenesis

authors： Hojo N,Tatsumi N,Moriguchi N,Matsumura A,Morimoto S,Nakata J,Fujiki F,Nishida S,Nakajima H,Tsuboi A,Oka Y,Hosen N,Hayashi S,Sugiyama H,Oji Y

更新日期：2016-12-01 00:00:00

abstract：:We previously reported that two dietary regimens, calorie restriction (CR) and a high olive oil-containing diet supplemented with a freeze-dried fruit and vegetable extract (OFV), reduced the development of intestinal adenomas in Apc(Min) mice by 57% and 33%, respectively, compared to control mice fed a defined diet a...

journal_title：Molecular carcinogenesis

authors： Mai V,Colbert LH,Perkins SN,Schatzkin A,Hursting SD

更新日期：2007-01-01 00:00:00

abstract：:The tyrosinase promoter has been used to target expression of the mutated human T24 Ha-ras oncogene in pigment-producing cells of transgenic mice. Two independent founder mice carrying the transgene survived and showed the same distinct phenotype of mutated coat color, deeply pigmented skin with multiple nevi, and twi...

journal_title：Molecular carcinogenesis

authors： Powell MB,Hyman P,Bell OD,Balmain A,Brown K,Alberts D,Bowden GT

更新日期：1995-02-01 00:00:00

abstract：:The present work describes the use of the infant (4-wk-old) mouse as an animal model for the study of DNA damage-induced G(1) checkpoint response, changes in p53 protein levels, and multiple gene expression changes after DNA damage has been induced in the liver. Hepatocytes in the infant B6C3F1 mouse had a proliferati...

journal_title：Molecular carcinogenesis

authors： Reynolds R,Witherspoon S,Fox T

更新日期：2004-05-01 00:00:00

abstract：:The cyclin-dependent kinase inhibitor 2a (Cdkn2a) locus encodes two distinct tumor suppressors, p16INK4a and p19ARF, whose functions interrelate in the regulation of cell proliferation as key components of the retinoblastoma and p53 pathways, respectively. In many types of cancer, alterations of Cdkn2a abrogate the fu...

journal_title：Molecular carcinogenesis

authors： Herzog CR,Noh S,Lantry LE,Guan KL,You M

更新日期：1999-06-01 00:00:00

abstract：:Transforming growth factor beta (TGFbeta) signaling has both tumor suppression and promotion roles. Smads are transcription factors that primarily mediate intracellular signaling for the TGFbeta superfamily. Loss of Smad2 and Smad4, but not Smad3 is common in human cancers. Given the complex nature of TGFbeta signalin...

journal_title：Molecular carcinogenesis

authors： Bornstein S,Hoot K,Han GW,Lu SL,Wang XJ

更新日期：2007-08-01 00:00:00

abstract：:The cellular senescence program is controlled by multiple genetic pathways, one of which involves the regulation of telomerase and telomere shortening. The introduction of a normal human chromosome 3 into the human renal cell carcinoma cell line RCC23 caused repression of telomerase activity, progressive shortening of...

journal_title：Molecular carcinogenesis

authors： Horikawa I,Oshimura M,Barrett JC

更新日期：1998-06-01 00:00:00

abstract：:We analyzed the genomic structure and mRNA of the RB and p53 genes in four mouse lymphoid leukemia cell lines (DL-1, DL-5, DL-8, and DL-12). Although no gross structural alteration of the RB gene was observed in any cell line, abnormalities of RB mRNA were detected in at least two cell lines. RB mRNA expression was gr...

journal_title：Molecular carcinogenesis

authors： Murakami A,Tanaka H

更新日期：1991-01-01 00:00:00

abstract：:Arsenic is a known human carcinogen. However, the mechanism of how arsenic induces cell transformation remains unclear. In this study, we demonstrated that long-term exposure to sodium arsenite at low-dose (2 µM) increases cell proliferation and neoplastic transformation in a mouse epidermal cell model, JB6 promotion-...

journal_title：Molecular carcinogenesis

authors： Zhang Y,Wang Q,Guo X,Miller R,Guo Y,Yang HS

更新日期：2011-07-01 00:00:00

abstract：:Both ultraviolet irradiation and oxidation of DNA produce a variety of pyrimidine base damages. A human endonuclease recognizes such altered bases on these DNA substrates. This human endonuclease incises ultraviolet-irradiated DNA exclusively at sites of photochemically modified cytosines. The precise sites of incisio...

journal_title：Molecular carcinogenesis

authors： Gallagher PE,Weiss RB,Brent TP,Duker NJ

更新日期：1989-01-01 00:00:00

abstract：:Mutations in RB and PTEN are linked to castration resistance and poor prognosis in prostate cancer. Identification of genes that are regulated by these tumor suppressors in a context that recapitulates cancer progression may be beneficial for discovering novel therapeutic targets. Although various genetically engineer...

journal_title：Molecular carcinogenesis

authors： Salah M,Nishimoto Y,Kohno S,Kondoh A,Kitajima S,Muranaka H,Nishiuchi T,Ibrahim A,Yoshida A,Takahashi C

更新日期：2016-12-01 00:00:00

abstract：:Atypical adenomatous hyperplasia (AAH) of the prostate is characterized by lobular proliferation of closely packed small acini. It is hypothesized that AAH is a precursor lesion for low-grade prostate cancer arising from the transition zone. Telomere dysfunction is common during malignant transformation of epithelia. ...

journal_title：Molecular carcinogenesis

authors： Cheng L,Montironi R,Davidson DD,Wang M,Lopez-Beltran A,Zhang S

更新日期：2019-07-01 00:00:00

abstract：:Human telomerase reverse transcriptase (TERT) gene encodes the catalytic subunit of telomerase and is located on chromosome 5p15, a genomic region which was found to be associated with multiple cancer types. But no associations with colorectal cancer (CRC) have been reported until recently. Therefore, the purpose of t...

journal_title：Molecular carcinogenesis

authors： Hofer P,Baierl A,Bernhart K,Leeb G,Mach K,Micksche M,Gsur A

更新日期：2012-10-01 00:00:00

abstract：:The prevalence of obesity, an established risk and progression factor for postmenopausal breast cancer, remains high in US women. Activation of Akt/mammalian target of rapamycin (mTOR) signaling plays a key role in the obesity-breast cancer link. However, the impact of weight normalization in obese postmenopausal wome...

journal_title：Molecular carcinogenesis

authors： De Angel RE,Conti CJ,Wheatley KE,Brenner AJ,Otto G,Degraffenried LA,Hursting SD

更新日期：2013-06-01 00:00:00

abstract：:There is an unmet need to develop new agents or strategies against therapy resistant pancreatic cancer (PanCA). Recent studies from our laboratory showed that STAT3 negatively regulates NF-κB and that inhibition of this crosstalk using Nexrutine® (Nx) reduces transcriptional activity of COX-2. Inhibition of these mole...

journal_title：Molecular carcinogenesis

authors： Gong J,Muñoz AR,Pingali S,Payton-Stewart F,Chan DE,Freeman JW,Ghosh R,Kumar AP

更新日期：2017-02-01 00:00:00

abstract：:Transgenic mice were developed to study the role of c-src in epithelial tumorigenesis through targeted expression of a constitutively active form of murine c-src (src(529)). Src(529) was targeted to the interfollicular epidermis with the human keratin 1 (HK1) promoter. The skin phenotype of these mice was characterize...

journal_title：Molecular carcinogenesis

authors： Matsumoto T,Jiang J,Kiguchi K,Carbajal S,Rho O,Gimenez-Conti I,Beltrán L,DiGiovanni J

更新日期：2002-03-01 00:00:00

abstract：:Gene amplification contributes to carcinogenesis by enhancing proto-oncogene activity and causing chromosomal instability. The ease of detecting amplified tumor-virus sequences has encouraged use of this system as a surrogate for studying the molecular events involved in endogenous gene amplification. We report here a...

journal_title：Molecular carcinogenesis

authors： Rossman TG,Wolosin D

更新日期：1992-01-01 00:00:00

abstract：:Bcl-x(L) is one of several antiapoptotic proteins regulated by signal transducer and activator of transcription 3 (Stat3). We have recently shown that Stat3 is required for chemically induced and ultraviolet B (UVB)-induced skin carcinogenesis. In this study, the functional role of Bcl-x(L) in skin carcinogenesis was ...

journal_title：Molecular carcinogenesis

authors： Kim DJ,Kataoka K,Sano S,Connolly K,Kiguchi K,DiGiovanni J

更新日期：2009-10-01 00:00:00

abstract：:It has been established that retinoids exert some of their effects on cell differentiation and malignant phenotype reversion through the interaction with different members of the protein kinase C (PKC) family. Till nowadays the nature and extension of this interaction is not well understood. Due to the cytostatic and ...

journal_title：Molecular carcinogenesis

authors： Berardi DE,Bessone MI,Motter A,Bal de Kier Joffé ED,Urtreger AJ,Todaro LB

更新日期：2015-10-01 00:00:00

abstract：:Liver cirrhosis is a critical state in the natural course of hepatocellular carcinoma (HCC). We sought to investigate the potential of in-depth proteomics to reveal plasma protein signatures that reflect common networks/pathways of liver cirrhosis, and to determine whether the cirrhosis-related signature in plasma is ...

journal_title：Molecular carcinogenesis

authors： Liu CC,Wang YH,Chuang EY,Tsai MH,Chuang YH,Lin CL,Liu CJ,Hsiao BY,Lin SM,Liu LY,Yu MW

更新日期：2014-01-01 00:00:00

abstract：:To assess systematically whether potentially functional polymorphisms in DNA repair genes influence the clinical behavior of non-small-cell lung cancer (NSCLC), we examined the impact of a comprehensive panel of 218 signal nucleotide polymorphisms (SNP) in 50 candidate DNA repair genes on overall survival of NSCLC in ...

journal_title：Molecular carcinogenesis

authors： Dong J,Hu Z,Shu Y,Pan S,Chen W,Wang Y,Hu L,Jiang Y,Dai J,Ma H,Jin G,Shen H

更新日期：2012-07-01 00:00:00

abstract：:Base excision repair (BER) is critical for the maintenance of genome stability because it repairs at least 20,000 endogenously generated DNA lesions/cell/d. Several enzymes within the BER pathway exhibit sequence context dependency during the excision and DNA synthesis steps of repair. New evidence is emerging that ge...

journal_title：Molecular carcinogenesis

authors： Donigan KA,Sweasy JB

更新日期：2009-04-01 00:00:00

abstract：:N(6)-isopentenyladenosine (i6A) inhibits the tumor cell growth by inducing cell apoptosis in various cancer cell lines. However, little is known regarding the mechanisms by which the drug induces cell apoptosis. In this study, we further explored the molecular mechanisms of i6A as an anticancer agent on a human breast...

journal_title：Molecular carcinogenesis

authors： Laezza C,Malfitano AM,Di Matola T,Ricchi P,Bifulco M

更新日期：2010-10-01 00:00:00