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Spliced MDM2 isoforms promote mutant p53 accumulation and gain-of-function in tumorigenesis
Mdm2 controls the levels of the tumour suppressor p53 in cells and p53 is often mutated in cancer. Here, Zheng et al. show that a particular Mdm2 isoform that is altered in cancer leads to elevated levels of mutant p53 protein and enhanced gain-of-function of the protein.
- Tongsen Zheng
- , Jiabei Wang
- & Wenwei Hu
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Tumour-associated mutant p53 drives the Warburg effect
Many cancers harbour mutations in the tumour suppressor p53, which often then gains oncogenic functions. Here, the authors show that mutant p53 enhances glycolysis in tumour cells by promoting glucose uptake via a mechanism involving GLUT1, RhoA and ROCK.
- Cen Zhang
- , Juan Liu
- & Zhaohui Feng
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Whole exome sequencing of insulinoma reveals recurrent T372R mutations in YY1
Insulinomas develop from pancreatic β-cells and secrete insulin, but the underlying genetic defects are largely unknown. In this study, Cao et al. identify recurrent T372R mutations in the transcription factor YY1, and validate this hotspot mutation in 30% of insulinomas.
- Yanan Cao
- , Zhibo Gao
- & Guang Ning
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Article
| Open AccessMutational landscape of gingivo-buccal oral squamous cell carcinoma reveals new recurrently-mutated genes and molecular subgroups
Gingivo-buccal oral squamous cell carcinoma (OSCC-GB) is the leading cancer among males in India. Here, the authors carry out exome sequencing and recurrence testing in patients with OSCC-GB and highlight genes and biological pathways associated with the disease.
- Arindam Maitra
- , Nidhan K. Biswas
- & D. Sutradhar
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Cyclin D1 induction of Dicer governs microRNA processing and expression in breast cancer
Whether microRNA processing mediated by Dicer is regulated in a cell-cycle-dependent manner is unknown. Here, Chen et al.show that Cyclin D1, which is important in the control of the cell cycle, regulates the expression of Dicer, and that Cyclin D1 and Dicer expression levels correlate in breast cancer.
- Zuoren Yu
- , Liping Wang
- & Richard G. Pestell
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A common variant at 8q24.21 is associated with renal cell cancer
Renal cell carcinoma (RCC) accounts for 80–90% of all kidney cancers, but to date, only five genome-wide significant RCC risk loci have been identified. Here, Gudmundsson et al.identify a new RCC susceptibility locus and provide insight into the genetic basis of the disease.
- Julius Gudmundsson
- , Patrick Sulem
- & Kari Stefansson
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| Open AccessIdentification of a pan-cancer oncogenic microRNA superfamily anchored by a central core seed motif
AGO-CLIP permits the identification of miRNA target genes. Here, Hamilton et al. compile publicly available AGO-CLIP data and combine this information with miRNA analysis from The Cancer Genome Atlas, permitting the identification of an oncogenic miRNA superfamily that targets tumour suppressor genes.
- Mark P. Hamilton
- , Kimal Rajapakshe
- & Sean E. McGuire
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A Nodal-independent and tissue-intrinsic mechanism controls heart-looping chirality
Nodal signalling has been implicated in the asymmetric positioning of various organs. Here, Noël et al.show that the asymmetry of the embryonic zebrafish heart is also established in the absence of Nodal signalling, suggesting a Nodal-independent mechanism that relies on actomyosin activity.
- Emily S. Noël
- , Manon Verhoeven
- & Jeroen Bakkers
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Involvement of parental imprinting in the antisense regulation of onco-miR-372-373
The miR-372-3 cluster has a role in oncogenesis. In this study, by utilizing parthenogenetic induced pluripotent stem cells, that lack the paternal genome, Stelzer et al.report that these miR-372-3 are negatively regulated by a paternally imprinted antisense transcript and that loss of its expression promotes oncogenesis.
- Yonatan Stelzer
- , Ido Sagi
- & Nissim Benvenisty
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Selective cancer targeting with prodrugs activated by histone deacetylases and a tumour-associated protease
Selective targeting of cancer cells may improve therapeutic efficacy while reducing adverse effects. Here, Ueki et al.report selective activation of an anticancer drug upon removal of an acetylated lysine group by histone deacetylases and the tumour-associated protease cathepsin L.
- Nobuhide Ueki
- , Siyeon Lee
- & Michael J. Hayman
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ARF triggers senescence in Brca2-deficient cells by altering the spectrum of p53 transcriptional targets
The tumour suppressor ARF regulates p53 levels; however, in contrast to p53, ARF has not been implicated in the response to DNA damage. In this study, Carlos et al.show that single-stranded DNA formed in BRCA2-null cells triggers a DNA damage response leading to the activation of ARF and senescence.
- Ana Rita Carlos
- , Jose Miguel Escandell
- & Madalena Tarsounas
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Article
| Open AccessWnt secretion is required to maintain high levels of Wnt activity in colon cancer cells
Activating mutations in the Wnt signalling pathway are associated with colon cancer. Here the authors show that tumour cells carrying mutations in APC and β-catenin are still regulated by Wnt ligands, suggesting that Wnt secretion and receptor signalling remains important to control downstream signalling.
- Oksana Voloshanenko
- , Gerrit Erdmann
- & Michael Boutros
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Semiconductor-based DNA sequencing of histone modification states
Semiconductor-based, non-optical DNA sequencing technologies such as Ion Torrent sequencing offer speed and cost advantages compared with alternative techniques. Cheng et al. demonstrate a protocol allowing the use of Ion Torrent technology to sequence DNA from chromatin immunoprecipitation experiments.
- Christine S. Cheng
- , Kunal Rai
- & Ido Amit
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Article
| Open AccessDifferential regulation of the REGγ–proteasome pathway by p53/TGF-β signalling and mutant p53 in cancer cells
REGγ is a proteasome activator and is frequently overexpressed in cancer cells. Here Ali et al. demonstrate that p53/TGF-β signalling inhibits REGγ expression, whereas p53 mutations increase REGγ transcription, identifying a gain of function for mutant p53.
- Amjad Ali
- , Zhuo Wang
- & Xiaotao Li
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Article
| Open AccessHeterozygous mutations in PALB2 cause DNA replication and damage response defects
PALB2 is a BRCA1-/BRCA2-interacting protein and heterozygous mutations in PALB2 are associated with hereditary breast cancer predisposition. Here the authors show that human lymphoblastoid cells from heterozygous PALB2mutation carriers display abnormal DNA replication dynamics and DNA damage response.
- Jenni Nikkilä
- , Ann Christin Parplys
- & Robert Winqvist
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Rb1 family mutation is sufficient for sarcoma initiation
Loss of the tumour suppressor Rb1 alone is thought to be insufficient for tumorigenesis. In this study, Liu et al. demonstrate that cells in which all three Rb1 family members are inactivated can initiate tumour formation, but only if cell survival is ensured by the retention of cell–cell contacts.
- Yongqing Liu
- , Ester Sánchez-Tilló
- & Douglas C. Dean
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| Open AccessAkt-p53-miR-365-cyclin D1/cdc25A axis contributes to gastric tumorigenesis induced by PTEN deficiency
The PTEN/Akt signalling pathway has been implicated in the pathogenesis of gastric cancer. Here, Guo et al. show that activation of Akt signalling results in the dysregulation of miR-365, which promotes tumorigenesis and that miR-365 reduction correlates with advance-stage tumours in gastric cancer patients.
- Shui-Long Guo
- , Hui Ye
- & Xiao Yang
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Switch of glycolysis to gluconeogenesis by dexamethasone for treatment of hepatocarcinoma
Hepatocytes use gluconeogenesis to produce glucose, but whether this process is altered in hepatocellular carcinoma (HCC) is unclear. Here, the loss of gluconeogenesis in HCC and altered glucocorticoid regulation is demonstrated and glucocorticoid treatment is shown to reduce tumour burden.
- Ruihua Ma
- , Wanguang Zhang
- & Bo Huang
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Variation at 3p24.1 and 6q23.3 influences the risk of Hodgkin’s lymphoma
Hodgkin’s lymphoma has a genetic component that is poorly understood. In this study, Frampton et al. perform a genome-wide association study in German patients and combine the results with a previously published UK genome-wide association study to identify susceptibility loci at 3p24.1 and 6q23.3.
- Matthew Frampton
- , Miguel Inacio da Silva Filho
- & Richard S. Houlston
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Reconstructing targetable pathways in lung cancer by integrating diverse omics data
Non-small cell lung cancers (NSCLC) that harbour mutations in KRas can be separated into KRas-dependent and -independent subsets. By analysing transcriptome, proteome and phosphoproteome data from NSCLC cell lines, Balbin et al. show that KRas-dependent cell lines activate the Lck pathway.
- O. Alejandro Balbin
- , John R. Prensner
- & Arul M. Chinnaiyan
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Smurf2 suppresses B-cell proliferation and lymphomagenesis by mediating ubiquitination and degradation of YY1
Mice deficient in the E3 ubiquitin ligase Smurf2 spontaneously develop B-cell lymphomas. Here Ramkumar et al.show that Smurf2 regulates B-cell proliferation by ubiquitinating the transcription factor YY1, and that Smurf2 expression correlates negatively with survival of patients with diffuse large B-cell lymphoma.
- Charusheila Ramkumar
- , Hang Cui
- & Hong Zhang
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Article
| Open AccessInferring tumour purity and stromal and immune cell admixture from expression data
Tumour biopsies contain contaminating normal cells and these can influence the analysis of tumour samples. In this study, Yoshihara et al.develop an algorithm based on gene expression profiles from The Cancer Genome Atlas to estimate the number of contaminating normal cells in tumour samples.
- Kosuke Yoshihara
- , Maria Shahmoradgoli
- & Roel G.W. Verhaak
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Cell–cell adhesion genes CTNNA2 and CTNNA3 are tumour suppressors frequently mutated in laryngeal carcinomas
Laryngeal carcinoma is a heterogeneous disease and multiple genes have been implicated in its pathogenesis. Here, Fanjul-Fernández et al. identify mutations in the cell–cell adhesion genes catenin α2 and catenin α3 in 15% of a cohort of homogeneous laryngeal carcinomas.
- Miriam Fanjul-Fernández
- , Víctor Quesada
- & Carlos López-Otín
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| Open AccessAngiotensin inhibition enhances drug delivery and potentiates chemotherapy by decompressing tumour blood vessels
Hyaluronan is a component of the tumour extracellular matrix. Here, Chauhan et al. show that hyaluronan increases blood pressure in collagen-rich tumours by compressing vessel walls, and that reducing the level of hyaluranon with an angiotensin II inhibitor increases blood flow and drug penetrance in tumours.
- Vikash P. Chauhan
- , John D. Martin
- & Rakesh K. Jain
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Article
| Open AccessThe landscape of viral expression and host gene fusion and adaptation in human cancer
Viruses contribute to the pathogenesis of certain cancers. Using massively parallel sequencing data from The Cancer Genome Atlas to analyse viral expression in 19 tumour types, Tang et al. both confirm and reject previously described viral associations and present new information on viral integration and host interaction.
- Ka-Wei Tang
- , Babak Alaei-Mahabadi
- & Erik Larsson
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| Open AccessTargeting BIG3–PHB2 interaction to overcome tamoxifen resistance in breast cancer cells
Oestrogen receptor-α (ERα) signalling has a role in breast cancer drug resistance. Here, the authors report a synthetic peptide that disrupts the interaction between the signalling molecules BIG3 and PHB2, and thereby suppresses tamoxifen resistance.
- Tetsuro Yoshimaru
- , Masato Komatsu
- & Toyomasa Katagiri
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Non-Darwinian dynamics in therapy-induced cancer drug resistance
Many different factors contribute to the acquisition of drug resistance in cancer cells. Using single-cell analyses of leukaemia cells, the authors here provide evidence for an inductive mode of resistance, where cells express MDR1 in response to drug exposure, rather than selection of pre-existing, partially resistant cells.
- Angela Oliveira Pisco
- , Amy Brock
- & Sui Huang
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Article
| Open AccessMaster regulators of FGFR2 signalling and breast cancer risk
FGFR2 gene variation is associated with breast cancer risk but the molecular mechanism is unknown. Fletcher et al. provide a link between FGFR2 signalling and breast cancer susceptibility by demonstrating that FGFR2 signalling activates the ERa transcriptional network, which drives transcription of risk genes.
- Michael N. C. Fletcher
- , Mauro A. A. Castro
- & Kerstin B. Meyer
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Non-invasive in vivo assessment of IDH1 mutational status in glioma
The metabolic reaction catalysed by the isocitrate dehydrogenase 1 (IDH1) enzyme is commonly perturbed in some glioma subtypes due to gain-of-function mutations in the IDH1 gene. Here, Chaumeil et al.present a method that detects mutant IDH1 activity by measuring the levels of different hyperpolarized metabolites produced by wild-type and mutant IDH1.
- Myriam M. Chaumeil
- , Peder E. Z. Larson
- & Sabrina M. Ronen
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Tumour angiogenesis regulation by the miR-200 family
The microRNA-200 family members have a role in regulating tumour angiogenesis but the underlying mechanism is unclear. In this study, Pecot et al.demonstrate that miR-200 affects angiogenesis by altering endothelial and cancer cell cytokine secretion.
- Chad V. Pecot
- , Rajesha Rupaimoole
- & Anil K. Sood
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| Open AccessHuman DNA helicase HELQ participates in DNA interstrand crosslink tolerance with ATR and RAD51 paralogs
Agents that cause DNA interstrand crosslinks are widely used to treat cancer. Takata et al.show that the DNA helicase HELQ associates with ATR and RAD51 paralogs, which are components of DNA repair pathways, and helps defend human cells against agents that induce DNA interstrand crosslinks.
- Kei-ichi Takata
- , Shelley Reh
- & Richard D. Wood
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The first total synthesis of the cyclodepsipeptide pipecolidepsin A
Pipecolidepsin A—commonly isolated from a marine sponge—is a promising anticancer agent but is challenging to synthesise in the lab. Here the authors describe the first total synthesis of this cyclodepsipeptide using a versatile strategy applicable to other similar compounds.
- Marta Pelay-Gimeno
- , Yésica García-Ramos
- & Fernando Albericio
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| Open AccessATG5 is induced by DNA-damaging agents and promotes mitotic catastrophe independent of autophagy
The protein ATG5 is known to be involved in the formation of autophagosomes. Here, Maskey et al. identify a new role of ATG5 in response to drug-induced DNA damage whereby ATG5 translocates to the nucleus, leading to chromosome misalignment and mitotic catastrophe.
- Dipak Maskey
- , Shida Yousefi
- & Hans-Uwe Simon
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NF-κB non-cell-autonomously regulates cancer stem cell populations in the basal-like breast cancer subtype
Aggressive types of breast cancer often exhibit constitutive activation of the pro-inflammatory transcription factor NF-κB. Here, Yamamoto et al. show that, in basal-like breast cancer, NF-κB upregulates the Notch receptor ligand JAG1 in non-cancer stem cells and thereby induces proliferation of breast cancer stem cells.
- Mizuki Yamamoto
- , Yuu Taguchi
- & Jun-ichiro Inoue
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Article
| Open AccessPrelamin A causes progeria through cell-extrinsic mechanisms and prevents cancer invasion
Mutations in the metalloproteinase Zmpste24 preclude prelamin A processing and cause premature ageing. Here, de la Rosaet al.create mosaic Zmpste24 mice, revealing that cell-extrinsic effects are essential for accelerated ageing caused by prelamin A accumulation and that prelamin A reduces invasiveness of cancer cells.
- Jorge de la Rosa
- , José M.P. Freije
- & Carlos López-Otín
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Article
| Open AccessHigh frequency of telomerase reverse-transcriptase promoter somatic mutations in hepatocellular carcinoma and preneoplastic lesions
Telomerase reverse-trancriptase promoter mutations have been recently found in human melanomas. Here, Nault et al.identify telomerase reverse-trancriptase promoter mutations as the most frequent somatic genetic alterations in hepatocellular carcinomas and as the first mutation identified in cirrhotic preneoplastic lesions.
- Jean Charles Nault
- , Maxime Mallet
- & Jessica Zucman-Rossi
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Frequency of TERT promoter mutations in human cancers
Reactivation of telomerase has been implicated in human tumorigenesis. Here, somatic mutations in the TERT promoter are reported in cancers of the central nervous system, bladder, follicular cell-derived thyroid and melanoma, thus demonstrating that TERTpromoter mutations are a frequent event in human cancer.
- João Vinagre
- , Ana Almeida
- & Paula Soares
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Article
| Open AccessRetinoic acid receptor alpha is associated with tamoxifen resistance in breast cancer
Many patients with breast cancer develop resistance to the drug tamoxifen and relapse. Here Johansson et al. identify the nuclear receptor retinoic acid receptor alpha (RARA) as a marker of tamoxifen resistance and show that RARA expression correlates negatively with relapse-free survival of patients.
- Henrik J. Johansson
- , Betzabe C. Sanchez
- & Janne Lehtiö
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Article
| Open AccessMeta-analysis of IDH-mutant cancers identifies EBF1 as an interaction partner for TET2
Cancer-associated mutations in isocitrate dehydrogenase are proposed to impair TET2-dependent DNA demethylation. By comparing the methylomes of IDH-mutant cancers, the authors identify the transcription factor EBF1 as a partner of TET2, suggesting a possible means for targeting TET2 to specific DNA sequences.
- Paul Guilhamon
- , Malihe Eskandarpour
- & Stephan Beck
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Article |
Crystal structure of the yeast TSC1 core domain and implications for tuberous sclerosis pathological mutations
Tuberous sclerosis is a disease characterized by tumour-like growths in multiple organs and is caused by mutations in TSC1 or TSC2. Here, the authors solve the crystal structure of yeast TSC1 and find that most mutations are found inside the folded N-terminal domain.
- Wei Sun
- , Ye Julia Zhu
- & Wenqing Xu
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Article |
Landscape of the mitochondrial Hsp90 metabolome in tumours
Tumour cells utilize a pool of the molecular chaperone heat shock protein 90 to ensure correct protein folding in mitochondria. Here, the authors demonstrate that mitochondrial heat shock protein 90 regulates the folding of a subunit of the electron transport chain and that this can contribute to tumorigenesis.
- Young Chan Chae
- , Alessia Angelin
- & Dario C. Altieri
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Article
| Open AccessEvaluating cell lines as tumour models by comparison of genomic profiles
Cell lines are widely used in cancer research to study tumour biology. Here Domcke et al.compare genomic data from ovarian cancer cell lines with those from clinical ovarian tumour samples and identify cell lines that most closely resemble the genomic features of high-grade serous ovarian cancer.
- Silvia Domcke
- , Rileen Sinha
- & Nikolaus Schultz
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Article |
Tumour PDGF-BB expression levels determine dual effects of anti-PDGF drugs on vascular remodelling and metastasis
Anti-cancer drugs inhibiting platelet-derived growth factor (PDGF) can either promote or inhibit tumour growth and metastasis. Here, Hosaka et al.ascribe this dual effect of anti-PDGF drugs to the production of the angiogenic ligand PDGF-BB by tumours, which is shown to regulate PDGFR-β signalling in pericytes.
- Kayoko Hosaka
- , Yunlong Yang
- & Yihai Cao
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FAK-heterozygous mice display enhanced tumour angiogenesis
Focal adhesion kinase (FAK) regulates angiogenesis and FAK inhibitors are currently developed as anticancer drugs. Here Kostourou and colleagues show that genetic FAK heterozygosity or low doses of a pharmacological FAK inhibitor unexpectedly increase angiogenesis and tumour growth in vitro and in vivo.
- Vassiliki Kostourou
- , Tanguy Lechertier
- & Kairbaan Hodivala-Dilke
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Article |
PHF20 regulates NF-κB signalling by disrupting recruitment of PP2A to p65
The protein PHF20 is expressed in various cancers, but little is known about its cellular function. Here, Zhang and colleagues show that PHF20 regulates NF-κB signalling by inhibiting the interaction between its subunit p65 and the phosphatase PP2A, thereby maintaining NF-κB in an active state in the nucleus.
- Tiejun Zhang
- , Kyeong Ah Park
- & Gang Min Hur
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Article |
A small molecule modulates Jumonji histone demethylase activity and selectively inhibits cancer growth
Epigenetic regulators are promising targets for cancer drugs, as they can modulate a broad range of transcriptional networks simultaneously. Here, the authors identify an inhibitor of Jumonji-family histone demethylases and show that it selectively kills cancer cells in mouse tumour models.
- Lei Wang
- , Jianjun Chang
- & Elisabeth D. Martinez
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Model-based rational design of an oncolytic virus with improved therapeutic potential
Oncolytic viruses can serve as self-replicating anticancer agents. Le Bœuf et al. combine synthetic modelling and molecular biology approaches to create a virus with enhanced oncolytic activity in vitro and in vivodue to its expression of an interferon antagonist.
- Fabrice Le Bœuf
- , Cory Batenchuk
- & John C. Bell
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Article
| Open AccessDrug-induced histone eviction from open chromatin contributes to the chemotherapeutic effects of doxorubicin
Anthracycline-based drugs can kill cancer cells by inhibiting topoisomerase II and promoting DNA double-strand breaks. Pang et al. show that anthracyclines also induce eviction of histones from open chromatin regions and, in doing so, modulate DNA repair and apoptosis in human cancer cells.
- Baoxu Pang
- , Xiaohang Qiao
- & Jacques Neefjes
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Peptidomimetic targeting of critical androgen receptor–coregulator interactions in prostate cancer
Androgen receptor signalling plays an important role in driving prostate cancer progression. Here the authors design a peptidomimetic that blocks the interaction between the androgen receptor and its coactivator PELP1, and show that the drug slows prostate cancer cell growth in a xenograft model.
- Preethi Ravindranathan
- , Tae-Kyung Lee
- & Ganesh V. Raj
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