Epigenetic modulation of AR gene expression in prostate cancer DU145 cells with the combination of sodium butyrate and 5'-Aza-2'-deoxycytidine.

Abstract:

:The androgen receptor (AR) plays an essential role in the development and progression of prostate cancer. Castration-resistant prostate cancer (CRPC) is a consequence of androgen deprivation therapy. Unchecked CRPC followed by metastasis is lethal. Some CRPCs show decreased AR gene expression due to epigenetic mechanisms such as DNA methylation and histone deacetylation. The aim of this study was to epigenetically modulate the methylated state of the AR gene leading to targeted demethylation and AR gene expression in androgen-independent human prostate cancer DU145 cell line, representing the CRPC model with very low or undetectable AR levels. The cell treatment was based on single and combined applications of two epigenetic inhibitors, sodium butyrate (NaB) as histone deacetylases inhibitor and 5'-Aza-2'-deoxycytidine (Aza-dC) as DNA methyltransferases inhibitor. We found that the Aza-dC in combination with NaB may help reduce the toxicity of higher NaB concentrations in cancer cells. In normal RWPE-1 cells and even stronger in cancer DU145 cells, the combined treatment induced both AR gene expression on the mRNA level and increased histone H4 acetylation in AR gene promoter. Also activation and maintenance of G2/M cell cycle arrest and better survival in normal RWPE-1 cells compared to cancer DU145 cells were observed after the treatments. These results imply the selective toxicity effect of both inhibitors used and their potentially more effective combined use in the epigenetic therapy of prostate cancer patients.

journal_name

Oncol Rep

journal_title

Oncology reports

authors

Fialova B,Luzna P,Gursky J,Langova K,Kolar Z,Trtkova KS

doi

10.3892/or.2016.5000

subject

Has Abstract

pub_date

2016-10-01 00:00:00

pages

2365-74

issue

4

eissn

1021-335X

issn

1791-2431

journal_volume

36

pub_type

杂志文章
  • Expression and activation of P38 MAP kinase in invasive ductal breast cancers: correlation with expression of the estrogen receptor, HER2 and downstream signaling phosphorylated proteins.

    abstract::MAP kinase signaling proteins have major implications in the molecular oncogenesis of breast cancers and have been extensively investigated as putative targets for therapy. This study reports the investigation of the expression of P38 MAPK and its phosphorylated form (p-P38 MAPK) in clinical specimens of invasive brea...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2013.2645

    authors: Merlin JL,Harlé A,Lion M,Ramacci C,Leroux A

    更新日期:2013-10-01 00:00:00

  • Induction of cell growth arrest and apoptotic cell death in human breast cancer MCF-7 cells by the COX-1 inhibitor FR122047.

    abstract::Non-steroidal anti-inflammatory drugs (NSAIDs), which inhibit the enzyme cyclooxygenase (COX), are known to have a potent anti-tumorigenic activity in various cancers. However, the responsible molecular mechanisms of COX inhibition in breast cancer cells remain to be completely elucidated. We examined the effect of th...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or_00000866

    authors: Jeong HS,Kim JH,Choi HY,Lee ER,Cho SG

    更新日期:2010-08-01 00:00:00

  • Combined use of PI3K and MEK inhibitors synergistically inhibits lung cancer with EGFR and KRAS mutations.

    abstract::EGFR and KRAS mutations are the two most common driver mutations in non-small cell lung cancer (NSCLC). Molecular target-based therapy using small molecules such as gefitinib has been used for inhibiting EGFR with good initial responses; however, drug resistance is common when using a mono-targeting strategy. At prese...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2016.4770

    authors: Jiang ZB,Huang J,Xie C,Li X,Liu L,He J,Pan H,Huang L,Fan XX,Yao XJ,Xie Y,Li N,Liu L,He JX,Leung EL

    更新日期:2016-07-01 00:00:00

  • High prevalence of hypothyroidism among patients with cutaneous melanoma.

    abstract::We have previously reported a high prevalence of hypothyroidism among patients with uveal melanoma. The objectives of the present study were to determine if a similar pattern of thyroid pathology exists among patients with cutaneous melanoma as well. To address this question, the medical records of all patients regist...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:

    authors: Ellerhorst JA,Cooksley CD,Broemeling L,Johnson MM,Grimm EA

    更新日期:2003-09-01 00:00:00

  • Demonstration of differential gene expression between sensitive and resistant ovarian tumor cells by fluorescence differential display-PCR analysis.

    abstract::Chemotherapy plays a major role in cancer management; however, acquired drug resistance remains a significant problem for ovarian cancer treatment. Chemoresistance is regulated by the coordinated expression of a set of genes. Thus, the identification of genes specifically modulated in the process provides an important...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:

    authors: Li L,Luan Y,Li X,Tang B,Zhang W,Li D,Zhao J,Wang G,Ding H,Reed E,Li QQ

    更新日期:2005-05-01 00:00:00

  • Selective inhibition of PI3K110α as a novel therapeutic strategy for cetuximab‑resistant oral squamous cell carcinoma.

    abstract::High expression of the 110 kDa catalytic subunit of the class IA PI3K (PI3Kp110α) may play an important role in cetuximab resistance exhibited by both colorectal cancer and head and neck squamous cell carcinoma. Therefore, the present study aimed to examine the association between the expression of proteins in the PI3...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2020.7674

    authors: Tsuchihashi H,Naruse T,Yanamoto S,Okuyama K,Furukawa K,Omori K,Umeda M

    更新日期:2020-09-01 00:00:00

  • 4-Chlorobenzoyl berbamine induces apoptosis and G2/M cell cycle arrest through the PI3K/Akt and NF-kappaB signal pathway in lymphoma cells.

    abstract::Berbamine is an herbal compound derived from Berberis amurensis, which is used in Chinese traditional medicine. However, few studies have investigated this anti-tumor effect or the underlying mechanisms of berbamine on lymphoma cells. We investigate the effect, as well as the mechanism of action, of 4-chlorobenzoyl be...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or_00000688

    authors: Du HP,Shen JK,Yang M,Wang YQ,Yuan XQ,Ma QL,Jin J

    更新日期:2010-03-01 00:00:00

  • Angiogenesis and the immune response as targets for the prevention and treatment of colorectal cancer (review).

    abstract::The carcinogenic process in previously normal human colonic mucosa involves hyperproliferation and adenoma formation, but it is not known why only a tiny proportion of adenomas undergo malignant transformation. There is accumulating evidence in favour of the hypothesis that inflammatory processes are a prerequisite fo...

    journal_title:Oncology reports

    pub_type: 杂志文章,评审

    doi:

    authors: Sharma RA,Dalgleish AG,Steward WP,O'Byrne KJ

    更新日期:2003-09-01 00:00:00

  • Effect of combining anti-epidermal growth factor receptor antibody C225 and radiation on DU145 prostate cancer.

    abstract::The epidermal growth factor receptor (EGFR) network has rich targets for prostate cancer killing. Herein we evaluated the effects of combining the EGFR inhibition and radiation on DU145 prostate cancer. We treated DU145 prostate cancer cells with various doses of anti-EGFR antibody (C225) and gamma-irradiation (RAD). ...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:

    authors: Wagener M,Zhang X,Villarreal HG,Levy L,Allen P,Shentu S,Fang B,Krishnan S,Chang JY,Cheung MR

    更新日期:2008-05-01 00:00:00

  • EPHX1 polymorphisms do not modify esophageal carcinoma susceptibility in Dutch Caucasians.

    abstract::Esophageal cancer (EC) has a globally increasing incidence with poor curative treatment options and survival rates. Crucial risk factors are exposure to toxins or carcinogens. Microsomal epoxide hydrolase (mEH) is a biotransformation enzyme essential for the detoxification of xenobiotics. Polymorphisms in exon 3 and e...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2012.1734

    authors: Dura P,Bregitha CV,Te Morsche RH,Roelofs HM,Kristinsson JO,Wobbes T,Witteman BJ,Tan AC,Drenth JP,Peters WH

    更新日期:2012-06-01 00:00:00

  • RNAi-mediated downregulation of cyclin Y to attenuate human breast cancer cell growth.

    abstract::Cyclin Y (CCNY) is a newly identified PFTK1 interacting protein and has been found to be associated with the proliferation and tumorigenesis of human non-small cell lung cancer. In the present study, we analyzed the expression levels of CCNY in 65 cases of breast cancer (BC) tissues and in four BC cell lines, BT-474, ...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2016.5126

    authors: Yan F,Wang X,Zhu M,Hu X

    更新日期:2016-11-01 00:00:00

  • Latexin exhibits tumor-suppressor potential in pancreatic ductal adenocarcinoma.

    abstract::Recent studies suggest that latexin (Lxn) expression is involved in stem cell regulation and that it plays significant roles in tumor cell migration and invasion. The clinicopathological significance of Lxn expression and its possible correlation with CD133 expression in pancreatic ductal adenocarcinoma (PDAC) is curr...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2015.4353

    authors: Xue Z,Zhou Y,Wang C,Zheng J,Zhang P,Zhou L,Wu L,Shan Y,Ye M,He Y,Cai Z

    更新日期:2016-01-01 00:00:00

  • SEMA3B improves the survival of patients with esophageal squamous cell carcinoma by upregulating p53 and p21.

    abstract::As one of the most common malignancies, esophageal squamous cell carcinoma (ESCC) is ranked as the sixth leading cause of cancer-related death worldwide. In our previous study, by employing cDNA microarray analysis, semaphorin 3B (SEMA3B) was found to be significantly downregulated in ESCC. In the present study, SEMA3...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2016.4901

    authors: Tang H,Wu Y,Liu M,Qin Y,Wang H,Wang L,Li S,Zhu H,He Z,Luo J,Wang H,Wang Q,Luo S

    更新日期:2016-08-01 00:00:00

  • Dual ErbB1 and ErbB2 receptor tyrosine kinase inhibition exerts synergistic effect with conventional chemotherapy in pancreatic cancer.

    abstract::Patient survival in pancreatic cancer remains poor with gemcitabine (GEM)-based regimens. The target specific molecular agent lapatinib, a dual ErbB1 and ErbB2 receptor tyrosine kinase inhibitor, has shown significant activity against ErbB1 and ErbB2-expressing tumors. Since pancrea...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2012.2053

    authors: Singla S,Pippin JA,Drebin JA

    更新日期:2012-12-01 00:00:00

  • Molecular characterization as a target for cancer therapy in relation to orphan status disorders (Review).

    abstract::The long-term effort in investigating chemical methods to eliminate only cancer cells has improved our knowledge and has led to the development of new drugs. The targets for cancer treatment may be large polymeric molecules such as DNA or microtubules as well as regulatory pathways for tumor development and cell survi...

    journal_title:Oncology reports

    pub_type: 杂志文章,评审

    doi:10.3892/or.9.6.1257

    authors: Stathopoulos GP

    更新日期:2002-11-01 00:00:00

  • The histone methyltransferase EZH2 promotes mammary stem and luminal progenitor cell expansion, metastasis and inhibits estrogen receptor-positive cellular differentiation in a model of basal breast cancer.

    abstract::Mammary stem cells (MSCs) are the progenitor population for human breast epithelia. MSCs give rise during mammary gland development to estrogen receptor (ER)-negative basal cells and the ER- luminal progenitor (LP) population which maintains ER+ and ER- luminal cells. The MSC population is expanded and tumorigenic in ...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2015.4003

    authors: Wu J,Crowe DL

    更新日期:2015-07-01 00:00:00

  • Malignant transformation of host stromal fibroblasts derived from the bone marrow traced in a dual-color fluorescence xenograft tumor model.

    abstract::Solid tumors are abnormal tissues containing tumor and non-tumor cells, also known as tumor stromal cells. However, the malignant potential of tumor stromal cells remains largely unknown. The aim of the present study was to investigate the malignant potential of host bone marrow‑derived stroma cells in transplanted su...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2015.4281

    authors: Dai X,Chen H,Chen Y,Wu J,Wang H,Shi J,Fei X,Wang Z,Wang A,Dong J,Lan Q,Huang Q

    更新日期:2015-12-01 00:00:00

  • Co-expression of herpes simplex virus thymidine kinase and Escherichia coli nitroreductase by an hTERT-driven adenovirus vector in breast cancer cells results in additive anti-tumor effects.

    abstract::Breast cancers especially in the late and metastatic stages remain refractory to treatment despite advances in surgical techniques and chemotherapy. Tumor-specific promoter-directed suicide gene therapy and adenoviral technology can be promising strategies for such advanced disease. Previous studies suggested that com...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2011.1285

    authors: Yu B,Zhang Y,Zhan Y,Zha X,Wu Y,Zhang X,Dong Q,Kong W,Yu X

    更新日期:2011-07-01 00:00:00

  • Identification of the key genes implicated in the transformation of OLP to OSCC using RNA-sequencing.

    abstract::Oral lichen planus (OLP) is a chronic inflammatory disease that may transform to oral squamous cell carcinoma (OSCC), while its carcinogenesis mechanisms are not entirely clear. This study was designed to identify the important genes involved in the malignant transformation of OLP to OSCC. After RNA-sequencing, the di...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2017.5487

    authors: Yang Q,Guo B,Sun H,Zhang J,Liu S,Hexige S,Yu X,Wang X

    更新日期:2017-04-01 00:00:00

  • Increased expression of telomere-related proteins correlates with resistance to radiation in human laryngeal cancer cell lines.

    abstract::Telomere-associated proteins function as survival factors in telomere maintenance, which are major contributors to radiosensitivity in human cancers. The aim of this study was to investigate the association of telomere-associated gene expression and radiation resistance in human larynx squamous carcinoma. The changes ...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or_00000381

    authors: Tang T,Zhou FX,Lei H,Yu HJ,Xie CH,Zhou YF,Liu SQ

    更新日期:2009-06-01 00:00:00

  • Effective antitumor immunity against murine gliomas using dendritic cells transduced with hTERTC27 recombinant adenovirus.

    abstract::hTERTC27, a 27-kDa hTERT C-terminal polypeptide has been demonstrated to cause hTERT-positive HeLa cell apoptosis and inhibits the growth of mouse melanoma. hTERTC27 has been associated with telomere dysfunction, regulation of gene-regulated apoptosis, the cell cycle and activation of natural killer (NK) cells, but it...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2011.1619

    authors: Gong HX,He L,Li XP,Wang YD,Li Y,Huang JJ,Wang Z,Xie D,Kung HF,Peng Y

    更新日期:2012-04-01 00:00:00

  • Salinomycin induces apoptosis and differentiation in human acute promyelocytic leukemia cells.

    abstract::At present, acute promyelocytic leukemia (APL) is the most curable form of acute myeloid leukemia and can be treated using all-trans retinoic acid and arsenic trioxide. However, the current treatment of APL is associated with some issues such as drug toxicity, resistance and relapse. Therefore, other strategies are ne...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2018.6513

    authors: Zhao Y,Zhong L,Liu L,Yao SF,Chen M,Li LW,Shan ZL,Xiao CL,Gan LG,Xu T,Liu BZ

    更新日期:2018-08-01 00:00:00

  • AKAPs competing peptide HT31 disrupts the inhibitory effect of PKA on RhoA activity.

    abstract::A-kinase can inhibit RhoA activation through phosphorylating ser188 of RhoA. AKAP is a novel protein that can target PKA to different subcellular compartment. Evidence has been presented that PKA anchorage by AKAP is important for the kinase to exert its function. This study analyzed the role of PKA anchorage in PKA-i...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:

    authors: Wang Y,Chen Y,Chen M,Xu W

    更新日期:2006-10-01 00:00:00

  • Combined SN-38 and gefitinib treatment promotes CD44 degradation in head and neck squamous cell carcinoma cells.

    abstract::The aim of the present study was to search for an effective regimen among existing chemotherapies for head and neck squamous cell carcinoma (HNSCC). Among the tested drugs, we focused on combined SN-38, which is the active metabolite produced from irinotecan hydrochloride - a type I DNA topoisomerase inhibitor - after...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2017.6105

    authors: Nanbu T,Umemura N,Ohkoshi E,Nanbu K,Sakagami H,Shimada J

    更新日期:2018-01-01 00:00:00

  • Radioprotective effects of various cytokines in peripheral blood mononuclear cells and C3H mice.

    abstract::The purpose of this study was to investigate the radioprotective effect of HGFs (GM-CSF, IL-3 and SCF) in irradiated human peripheral blood mononuclear cells (PBMCs) in vitro, and the survival effect of lethally irradiated C3H mice in vivo. The irradiation of human PBMCs using a (137)Cs irradiator showed a dose-depend...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:

    authors: Kim JY,Oh SJ,Park HK,Yoon JS,Kim ES,Kim ES,Kim CS,Lee YY,Kim BK

    更新日期:2005-06-01 00:00:00

  • The effects of the Wnt/β‑catenin signaling pathway on apoptosis in HeLa cells induced by carbon ion irradiation.

    abstract::The molecular mechanisms underlying the biological effects of carbon ions are unclear. The aim of this study was to explore the Wnt/β‑catenin pathway in regulating carbon ion (12C6+) radiation‑induced cellular toxicity. HLY78 is a Wnt‑specific small molecular modulator, whose effects on 12C6+ radiation‑induced damage ...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2020.7581

    authors: Si J,Zhang J,Gan L,Guo M,Xie Y,Di C,Sun C,Wang F,Yan J,Zhang H

    更新日期:2020-07-01 00:00:00

  • Tumor-suppressive mir-663 gene induces mitotic catastrophe growth arrest in human gastric cancer cells.

    abstract::Increasing evidence suggests that microRNAs are involved in human carcinogenesis as tumor suppressors or oncogenes. A growing number of reports has shown that an interest has been sparked in aberrant microRNA expression and how they can be used to treat human diseases, including cancer. However, their precise biologic...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or_00000834

    authors: Pan J,Hu H,Zhou Z,Sun L,Peng L,Yu L,Sun L,Liu J,Yang Z,Ran Y

    更新日期:2010-07-01 00:00:00

  • PI3Kβ inhibitor AZD6482 exerts antiproliferative activity and induces apoptosis in human glioblastoma cells.

    abstract::Glioblastoma is the most common type of primary brain tumour in adults, and its pathogenesis is particularly complicated. Among the many possible mechanisms underlying its pathogenesis, hyperactivation of the PI3K/Akt pathway is essential to the occurrence and development of glioma through the loss of PTEN or somatic ...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2018.6845

    authors: Xu PF,Yang JA,Liu JH,Yang X,Liao JM,Yuan FE,Liu BH,Chen QX

    更新日期:2019-01-01 00:00:00

  • Synergism between α-mangostin and TRAIL induces apoptosis in squamous cell carcinoma of the oral cavity through the mitochondrial pathway.

    abstract::Mangosteen (Garcinia mangostana) is a tree found in South-East Asia and the pericarp of its fruit has been used in folk medicine for the treatment of many human illnesses. Mangosteen fruit rinds contain a high concentration of xanthone, which is a type of polyphenol. One type of xanthone, α-mangostin, has been reporte...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2017.6030

    authors: Fukuda M,Sakashita H,Hayashi H,Shiono J,Miyake G,Komine Y,Taira F,Sakashita H

    更新日期:2017-12-01 00:00:00

  • Role of mitochondrial function in the invasiveness of human colon cancer cells.

    abstract::We investigated the role of mitochondrial function in the invasiveness of human colorectal cancer (CRC) cell lines, using paired primary SW480 and metastatic SW620 cells, and appraised the clinical relevance of the alteration of mtDNA copy number in 33 pairs of CRC specimens after surgical resection. Suppression of mi...

    journal_title:Oncology reports

    pub_type: 杂志文章

    doi:10.3892/or.2017.6087

    authors: Lin CS,Liu LT,Ou LH,Pan SC,Lin CI,Wei YH

    更新日期:2018-01-01 00:00:00