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KDM5C

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https://www.readbyqxmd.com/read/29754934/comprehensive-genomic-profiling-of-metastatic-tumors-in-a-phase-2-biomarker-study-of-everolimus-in-advanced-renal-cell-carcinoma
#1
Xin Gao, Opeyemi Jegede, Connor Gray, Paul J Catalano, Jesse Novak, David J Kwiatkowski, Rana R McKay, Daniel J George, Toni K Choueiri, David F McDermott, Sabina Signoretti, Rupal S Bhatt
INTRODUCTION: Genomic events leading to activation of mechanistic target of rapamycin (mTOR) are common in renal cell carcinoma (RCC). Everolimus is an allosteric mTOR inhibitor with efficacy in metastatic RCC. We characterized the genomic profile of RCC tumors from metastatic sites and assessed whether particular alterations correlate with clinical response to everolimus. PATIENTS AND METHODS: An open-label, single-arm phase 2 biomarker study of everolimus 10 mg daily was conducted in metastatic RCC patients...
April 25, 2018: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29726952/comprehensive-genetic-analysis-of-follicular-thyroid-carcinoma-predicts-prognosis-independent-of-histology
#2
Norman G Nicolson, Timothy D Murtha, Weilai Dong, Johan O Paulsson, Jungmin Choi, Andrea L Barbieri, Taylor C Brown, John W Kunstman, Catharina Larsson, Manju L Prasad, Reju Korah, Richard P Lifton, C Christofer Juhlin, Tobias Carling
Context: Follicular thyroid cancer (FTC) is classified into minimally invasive (miFTC), encapsulated angioinvasive (eaFTC), and widely invasive (wiFTC) subtypes, according to the 2017 World Health Organization (WHO) guidelines. The genetic signatures of these subtypes may be crucial for diagnosis, prognosis, and treatment, but have not been described. Objective: Identify and describe the genetic underpinnings of subtypes of follicular thyroid cancer. Methods: Thirty-nine tumors, comprising 12 miFTCs, 17 eaFTCs, and 10 wiFTCs were whole-exome sequenced and analyzed...
May 2, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29670509/altered-gene-regulatory-function-of-kdm5c-by-a-novel-mutation-associated-with-autism-and-intellectual-disability
#3
Christina N Vallianatos, Clara Farrehi, Michael J Friez, Margit Burmeister, Catherine E Keegan, Shigeki Iwase
Intellectual disability (ID) affects up to 2% of the population world-wide and often coincides with other neurological conditions such as autism spectrum disorders. Mutations in KDM5C cause Mental Retardation, X-linked, Syndromic, Claes-Jensen type (MRXSCJ, OMIM #300534) and are one of the most common causes of X-linked ID. KDM5C encodes a histone demethylase for di- and tri-methylated histone H3 lysine 4 (H3K4me2/3), which are enriched in transcriptionally engaged promoter regions. KDM5C regulates gene transcription; however, it remains unknown whether removal of H3K4me is fully responsible for KDM5C-mediated gene regulation...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29572065/pericentromeric-regions-of-homozygosity-on-the-x-chromosome-another-likely-benign-population-variant
#4
Elizabeth S Barrie, Yu Li, Devon Lamb-Thrush, Sayaka Hashimoto, Theodora Jacobson, Danielle Mouhlas, Robert Pyatt, Shalini C Reshmi, Julie M Gastier-Foster, Ruthann Pfau, Caroline Astbury
PURPOSE: While chromosomal regions of homozygosity (ROH) may implicate genes in known recessive disorders, their correlation to disease pathogenicity remains unclear. ROH around the centromere of the X chromosome (pericentromeric, pROH) is regarded as benign, although this has not been empirically demonstrated. METHODS: We examined microarray results from 122 female individuals harboring ROH bordering the X centromere. RESULTS: Consecutive ROH was most frequently observed for regions Xp11...
March 20, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29528362/histone-3-lysine-4-9-and-27-demethylases-expression-profile-in-fertilized-and-cloned-bovine-and-porcine-embryos
#5
Werner Giehl Glanzner, Vitor Braga Rissi, Mariana Priotto de Macedo, Lady Katerine Serrano Mujica, Karina Gutierrez, Alessandra Bridi, João Ricardo Malheiros de Souza, Paulo Bayard Dias Gonçalves, Vilceu Bordignon
Epigenetic modifications in the C-terminal domain of histones coordinate important events during early development including embryo genome activation (EGA) and cell differentiation. In this study, the mRNA expression profile of the main lysine demethylases (KDMs) acting on the lysine 4 (H3K4), 9 (H3K9) and 27 (H3K27) of the histone H3 was determined at pre-, during and post- EGA stages of bovine and porcine embryos produced by in vitro fertilization (IVF) and somatic cell nuclear transfer (SCNT). In IVF embryos, mRNA abundance of most KDMs revealed a bell-shaped profile with peak expression around the EGA period, i...
March 8, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29490272/a-drosophila-model-of-intellectual-disability-caused-by-mutations-in-the-histone-demethylase-kdm5
#6
Sumaira Zamurrad, Hayden A M Hatch, Coralie Drelon, Helen M Belalcazar, Julie Secombe
Mutations in KDM5 family histone demethylases cause intellectual disability in humans. However, the molecular mechanisms linking KDM5-regulated transcription and cognition remain unknown. Here, we establish Drosophila as a model to understand this connection by generating a fly strain harboring an allele analogous to a disease-causing missense mutation in human KDM5C (kdm5A512P ). Transcriptome analysis of kdm5A512P flies revealed a striking downregulation of genes required for ribosomal assembly and function and a concomitant reduction in translation...
February 27, 2018: Cell Reports
https://www.readbyqxmd.com/read/29456765/peripheral-blood-epi-signature-of-claes-jensen-syndrome-enables-sensitive-and-specific-identification-of-patients-and-healthy-carriers-with-pathogenic-mutations-in-kdm5c
#7
Laila C Schenkel, Erfan Aref-Eshghi, Cindy Skinner, Peter Ainsworth, Hanxin Lin, Guillaume Paré, David I Rodenhiser, Charles Schwartz, Bekim Sadikovic
Background: Claes-Jensen syndrome is an X-linked inherited intellectual disability caused by mutations in the KDM5C gene. Kdm5c is a histone lysine demethylase involved in histone modifications and chromatin remodeling. Males with hemizygous mutations in KDM5C present with intellectual disability and facial dysmorphism, while most heterozygous female carriers are asymptomatic. We hypothesized that loss of Kdm5c function may influence other components of the epigenomic machinery including DNA methylation in affected patients...
2018: Clinical Epigenetics
https://www.readbyqxmd.com/read/29442054/mrna-expression-profiling-of-histone-modifying-enzymes-in-pediatric-acute-monoblastic-leukemia
#8
Pei-Fang Xiao, Yan-Fang Tao, Shao-Yan Hu, Lan Cao, Jun Lu, Jian Wang, Xing Feng, Jian Pan, Yi-Huan Chai
Histone modification is dysregulated in various types of cancers, including hematological malignancies. However, the expression profile of histone-modifying enzymes in pediatric acute monoblastic leukemia (AML FAB M5) has not been investigated. In this study, we evaluated the mRNA expression profile of 85 genes that encode enzymes involved in histone-modification in 27 pediatric AML FAB M5 samples by using a novel real-time PCR array. We obtained a gene cluster consisting of a total of 28 genes (15 up-regulated genes and 13 down-regulated genes)...
March 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29339538/e6-protein-expressed-by-high-risk-hpv-activates-super-enhancers-of-the-egfr-and-c-met-oncogenes-by-destabilizing-the-histone-demethylase-kdm5c
#9
Xiaohua Chen, Jun Xian Loo, Xin Shi, Wenjun Xiong, Yong Guo, Haiqiang Ke, Mingkun Yang, Yanping Jiang, Siyu Xia, Min Zhao, Shan Zhong, Chunjiang He, Li Fu, Feng Li
The high-risk (HR) human papillomaviruses (HPV) are causative agents of anogenital tract dysplasia and cancers and a fraction of head and neck cancers. The HR HPV E6 oncoprotein possesses canonical oncogenic functions, such as p53 degradation and telomerase activation. It is also capable of stimulating expression of several oncogenes, but the molecular mechanism underlying these events is poorly understood. Here, we provide evidence that HPV16 E6 physically interacts with histone H3K4 demethylase KDM5C, resulting in its degradation in an E3 ligase E6AP- and proteasome-dependent manner...
March 15, 2018: Cancer Research
https://www.readbyqxmd.com/read/29132830/characterizing-recurrent-and-lethal-small-renal-masses-in-clear-cell-renal-cell-carcinoma-using-recurrent-somatic-mutations
#10
Brandon J Manley, Ed Reznik, Mazyar Ghanaat, Mahyar Kashan, Maria F Becerra, Jozefina Casuscelli, Daniel Tennenbaum, Almedina Redzematovic, Maria I Carlo, Yusuke Sato, Maria Arcila, Martin H Voss, Darren R Feldman, Robert J Motzer, Paul Russo, Jonathan Coleman, James J Hsieh, Ari A Hakimi
INTRODUCTION: Small renal masses (SRMs) with evidence of clear cell renal cell carcinoma (ccRCC) are understudied. Current algorithms for the management of SRMs include surgical resection, ablation, and active surveillance. We sought to identify genomic biomarkers that could potentially refine the management of ccRCC in SRMs, especially in patients being evaluated for active surveillance. METHODS: We identified patients who had SRMs (4cm or less) at time of surgery, had sequencing performed on their primary tumor and had a diagnosis of ccRCC...
November 10, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28978483/loss-of-kdm5c-causes-spurious-transcription-and-prevents-the-fine-tuning-of-activity-regulated-enhancers-in-neurons
#11
Marilyn Scandaglia, Jose P Lopez-Atalaya, Alejandro Medrano-Fernandez, Maria T Lopez-Cascales, Beatriz Del Blanco, Michal Lipinski, Eva Benito, Roman Olivares, Shigeki Iwase, Yang Shi, Angel Barco
During development, chromatin-modifying enzymes regulate both the timely establishment of cell-type-specific gene programs and the coordinated repression of alternative cell fates. To dissect the role of one such enzyme, the intellectual-disability-linked lysine demethylase 5C (Kdm5c), in the developing and adult brain, we conducted parallel behavioral, transcriptomic, and epigenomic studies in Kdm5c-null and forebrain-restricted inducible knockout mice. Together, genomic analyses and functional assays demonstrate that Kdm5c plays a critical role as a repressor responsible for the developmental silencing of germline genes during cellular differentiation and in fine-tuning activity-regulated enhancers during neuronal maturation...
October 3, 2017: Cell Reports
https://www.readbyqxmd.com/read/28932590/primary-pulmonary-malignant-fibrous-histiocytoma-case-report-and-literature-review
#12
Xiongfei Li, Renwang Liu, Tao Shi, Shangwen Dong, Fan Ren, Fan Yang, Dian Ren, Haiyang Fan, Sen Wei, Gang Chen, Jun Chen, Song Xu
Malignant fibrous histiocytoma (MFH) is an aggressive soft tissue sarcoma known to occur in various organs. Primary MFH arising in the lung is quite rare. Herein we report a case of a 61-year-old male with primary pulmonary MFH and explore the underlying molecular mechanisms by next-generation sequencing (NGS). Five gene mutations in TSC2, ARID1B, CDK8, KDM5C and CASP8 were detected, and the mTOR inhibitor might be an effective treatment for this patient. In addition, we reviewed the scientific literature of approximately 23 primary pulmonary MFH case reports since 1990 and summarized the clinical features and prognosis of this rare pulmonary malignant tumor...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28725537/the-emerging-role-of-histone-demethylases-in-renal-cell-carcinoma
#13
REVIEW
Xiaoqiang Guo, Qiaoxia Zhang
Renal cell carcinoma (RCC), the most common kidney cancer, is responsible for more than 100,000 deaths per year worldwide. The molecular mechanism of RCC is poorly understood. Many studies have indicated that epigenetic changes such as DNA methylation, noncoding RNAs, and histone modifications are central to the pathogenesis of cancer. Histone demethylases (KDMs) play a central role in histone modifications. There is emerging evidence that KDMs such as KDM3A, KDM5C, KDM6A, and KDM6B play important roles in RCC...
2017: Journal of Kidney Cancer and VHL
https://www.readbyqxmd.com/read/28630052/infection-exposure-promotes-etv6-runx1-precursor-b-cell-leukemia-via-impaired-h3k4-demethylases
#14
Guillermo Rodríguez-Hernández, Julia Hauer, Alberto Martín-Lorenzo, Daniel Schäfer, Christoph Bartenhagen, Idoia García-Ramírez, Franziska Auer, Inés González-Herrero, Lucia Ruiz-Roca, Michael Gombert, Vera Okpanyi, Ute Fischer, Cai Chen, Martin Dugas, Sanil Bhatia, René Martin Linka, Marta Garcia-Suquia, María Victoria Rascón-Trincado, Angel Garcia-Sanchez, Oscar Blanco, Maria Begoña García-Cenador, Francisco Javier García-Criado, César Cobaleda, Diego Alonso-López, Javier De Las Rivas, Markus Müschen, Carolina Vicente-Dueñas, Isidro Sánchez-García, Arndt Borkhardt
ETV6-RUNX1 is associated with the most common subtype of childhood leukemia. As few ETV6-RUNX1 carriers develop precursor B-cell acute lymphocytic leukemia (pB-ALL), the underlying genetic basis for development of full-blown leukemia remains to be identified, but the appearance of leukemia cases in time-space clusters keeps infection as a potential causal factor. Here, we present in vivo genetic evidence mechanistically connecting preleukemic ETV6-RUNX1 expression in hematopoetic stem cells/precursor cells (HSC/PC) and postnatal infections for human-like pB-ALL...
August 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28408295/genomic-alterations-as-predictors-of-survival-among-patients-within-a-combined-cohort-with-clear-cell-renal-cell-carcinoma-undergoing-cytoreductive-nephrectomy
#15
Daniel M Tennenbaum, Brandon J Manley, Emily Zabor, Maria F Becerra, Maria I Carlo, Jozefina Casuscelli, Almedina Redzematovic, Nabeela Khan, Maria E Arcila, Martin H Voss, Darren R Feldman, Robert J Motzer, Nicole E Benfante, Jonathan A Coleman, Paul Russo, James J Hsieh, Abraham Ari Hakimi
PURPOSE: To establish prognostic genomic biomarkers for patients with metastatic clear cell renal cell carcinoma (ccRCC). MATERIALS AND METHODS: We identified 60 patients who presented with metastatic ccRCC at our institution between 2001 and 2015 and had genomic sequencing on their primary tumor. We pooled these patients with 107 other patients with the same inclusion criteria from three well-known public databases. Five commonly mutated genes were chosen for analysis: VHL, PBRM1, BAP1, SETD2, and KDM5C...
August 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28212566/genetic-characterization-of-polish-ccrcc-patients-somatic-mutation-analysis-of-pbrm1-bap1-and-kdmc5-genomic-snp-array-analysis-in-tumor-biopsy-and-preliminary-results-of-chromosome-aberrations-analysis-in-plasma-cell-free-dna
#16
Katarzyna Kluzek, Malgorzata I Srebniak, Weronika Majer, Agnieszka Ida, Tomasz Milecki, Kinga Huminska, Robert M van der Helm, Adrian Silesian, Tomasz M Wrzesinski, Jacek Wojciechowicz, Berna H Beverloo, Zbigniew Kwias, Hans A R Bluyssen, Joanna Wesoly
BACKGROUND: Mutation analysis and cytogenetic testing in clear cell renal cell carcinoma (ccRCC) is not yet implemented in a routine diagnostics of ccRCC. MATERIAL AND METHODS: We characterized the chromosomal alterations in 83 ccRCC tumors from Polish patients using whole genome SNP genotyping assay. Moreover, the utility of next generation sequencing of cell free DNA (cfDNA) in patients plasma as a potential tool for non-invasive cytogenetic analysis was tested...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/27923837/the-nci-60-methylome-and-its-integration-into-cellminer
#17
William C Reinhold, Sudhir Varma, Margot Sunshine, Vinodh Rajapakse, Augustin Luna, Kurt W Kohn, Holly Stevenson, Yonghong Wang, Holger Heyn, Vanesa Nogales, Sebastian Moran, David J Goldstein, James H Doroshow, Paul S Meltzer, Manel Esteller, Yves Pommier
A unique resource for systems pharmacology and genomic studies is the NCI-60 cancer cell line panel, which provides data for the largest publicly available library of compounds with cytotoxic activity (∼21,000 compounds), including 108 FDA-approved and 70 clinical trial drugs as well as genomic data, including whole-exome sequencing, gene and miRNA transcripts, DNA copy number, and protein levels. Here, we provide the first readily usable genome-wide DNA methylation database for the NCI-60, including 485,577 probes from the Infinium HumanMethylation450k BeadChip array, which yielded DNA methylation signatures for 17,559 genes integrated into our open access CellMiner version 2...
February 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/27896428/xci-escaping-gene-kdm5c-contributes-to-ovarian-development-via-downregulating-mir-320a
#18
Yi-Xi Sun, Yi-Xin Zhang, Dan Zhang, Chen-Ming Xu, Song-Chang Chen, Jun-Yu Zhang, Ye-Chun Ruan, Feng Chen, Run-Ju Zhang, Ye-Qing Qian, Yi-Feng Liu, Lu-Yang Jin, Tian-Tian Yu, Hai-Yan Xu, Yu-Qin Luo, Xin-Mei Liu, Fei Sun, Jian-Zhong Sheng, He-Feng Huang
Mechanisms underlying female gonadal dysgenesis remain unclarified and relatively unstudied. Whether X-chromosome inactivation (XCI)-escaping genes and microRNAs (miRNAs) contribute to this condition is currently unknown. We compared 45,X Turner Syndrome women with 46,XX normal women, and investigated differentially expressed miRNAs in Turner Syndrome through plasma miRNA sequencing. We found that miR-320a was consistently upregulated not only in 45,X plasma and peripheral blood mononuclear cells (PBMCs), but also in 45,X fetal gonadal tissues...
February 2017: Human Genetics
https://www.readbyqxmd.com/read/27879032/altered-expression-of-brg1-and-histone-demethylases-and-aberrant-h3k4-methylation-in-less-developmentally-competent-embryos-at-the-time-of-embryonic-genome-activation
#19
Werner G Glanzner, Audrey Wachter, Ana Rita S Coutinho, Marcelo S Albornoz, Raj Duggavathi, Paulo B D GonÇAlves, Vilceu Bordignon
Epigenetics is a fundamental regulator underlying many biological functions, such as development and cell differentiation. Epigenetic modifications affect key chromatin regulation, including transcription and DNA repair, which are critical for normal embryo development. In this study, we profiled the expression of epigenetic modifiers and patterns of epigenetic changes in porcine embryos around the period of embryonic genome activation (EGA). We observed that Brahma-related gene 1 (BRG1) and Lysine demethylase 1A (KDM1A), which can alter the methylation status of lysine 4 in histone 3 (H3K4), localize to the nucleus at Day 3-4 of development...
January 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/27869828/tumor-suppressor-genes-that-escape-from-x-inactivation-contribute-to-cancer-sex-bias
#20
Andrew Dunford, David M Weinstock, Virginia Savova, Steven E Schumacher, John P Cleary, Akinori Yoda, Timothy J Sullivan, Julian M Hess, Alexander A Gimelbrant, Rameen Beroukhim, Michael S Lawrence, Gad Getz, Andrew A Lane
There is a striking and unexplained male predominance across many cancer types. A subset of X-chromosome genes can escape X-inactivation, which would protect females from complete functional loss by a single mutation. To identify putative 'escape from X-inactivation tumor-suppressor' (EXITS) genes, we examined somatic alterations from >4,100 cancers across 21 tumor types for sex bias. Six of 783 non-pseudoautosomal region (PAR) X-chromosome genes (ATRX, CNKSR2, DDX3X, KDM5C, KDM6A, and MAGEC3) harbored loss-of-function mutations more frequently in males (based on a false discovery rate < 0...
January 2017: Nature Genetics
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