Haitham Ashoor

ORCID: 0000-0003-2527-0317
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About
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Research Areas
  • Genomics and Chromatin Dynamics
  • RNA and protein synthesis mechanisms
  • Bioinformatics and Genomic Networks
  • Computational Drug Discovery Methods
  • Genomics and Phylogenetic Studies
  • RNA Research and Splicing
  • Machine Learning in Bioinformatics
  • RNA modifications and cancer
  • Epigenetics and DNA Methylation
  • Gene expression and cancer classification
  • Pharmacogenetics and Drug Metabolism
  • Cancer-related molecular mechanisms research
  • Molecular Biology Techniques and Applications
  • MicroRNA in disease regulation
  • Cancer Genomics and Diagnostics
  • Advanced Proteomics Techniques and Applications
  • Machine Learning in Materials Science
  • Endoplasmic Reticulum Stress and Disease
  • Pancreatic function and diabetes
  • Advanced Graph Neural Networks
  • Chromosomal and Genetic Variations
  • Coastal wetland ecosystem dynamics
  • Click Chemistry and Applications
  • Aquaculture disease management and microbiota
  • Chemical Synthesis and Analysis

Johnson & Johnson (United States)
2023

Janssen (United States)
2023

King Abdullah University of Science and Technology
2011-2022

Jackson Laboratory
2017-2021

Bioscience Research
2012-2015

Biologie cellulaire et Cancer
2013

Inserm
2013

École Nationale Supérieure des Mines de Paris
2013

Centre National de la Recherche Scientifique
2013

Marshfield Clinic
2012

Abstract Despite half a century of research, the biology dinoflagellates remains enigmatic: they defy many functional and genetic traits attributed to typical eukaryotic cells. Genomic approaches study are often stymied due their large, multi-gigabase genomes. Members genus Symbiodinium photosynthetic endosymbionts stony corals that provide foundation coral reef ecosystems. Their smaller genome sizes an opportunity interrogate evolution functionality dinoflagellate genomes endosymbiosis. We...

10.1038/srep39734 article EN cc-by Scientific Reports 2016-12-22

Models of transcription factor (TF) binding sites provide a basis for wide spectrum studies in regulatory genomics, from reconstruction networks to functional annotation transcripts and sequence variants. While TFs may recognize different patterns conditions, it is pragmatic have single generic model each particular TF as baseline practical applications. Here we present the expanded enhanced version HOCOMOCO (http://hocomoco.autosome.ru http://www.cbrc.kaust.edu.sa/hocomoco10), collection...

10.1093/nar/gkv1249 article EN cc-by-nc Nucleic Acids Research 2015-11-19

Abstract Motivation Finding computationally drug–target interactions (DTIs) is a convenient strategy to identify new DTIs at low cost with reasonable accuracy. However, the current DTI prediction methods suffer high false positive rate. Results We developed DDR, novel method that improves DDR based on use of heterogeneous graph contains known multiple similarities between drugs and target proteins. applies non-linear similarity fusion combine different similarities. Before fusion, performs...

10.1093/bioinformatics/btx731 article EN cc-by-nc Bioinformatics 2017-11-23

Individual plasma proteins have been identified as minimally invasive biomarkers for lung cancer diagnosis with potential utility in early detection. Plasma proteomes provide insight into contributing biological factors; we investigated their future prediction.The Olink® Explore-3072 platform quantitated 2941 496 Liverpool Lung Project samples, including 131 cases taken 1-10 years prior to diagnosis, 237 controls, and 90 subjects at multiple times. 1112 significantly associated haemolysis...

10.1016/j.ebiom.2023.104686 article EN cc-by-nc-nd EBioMedicine 2023-06-26

Abstract In silico prediction of drug–target interactions is a critical phase in the sustainable drug development process, especially when research focus to capitalize on repositioning existing drugs. However, developing such computational methods not an easy task, but much needed, as current that predict potential suffer from high false-positive rates. Here we introduce DTiGEMS+, method predicts D rug– T arget i nteractions using G raph E mbedding, graph M ining, and S imilarity-based...

10.1186/s13321-020-00447-2 article EN cc-by Journal of Cheminformatics 2020-06-29

Abstract Chromatin interaction studies can reveal how the genome is organized into spatially confined sub-compartments in nucleus. However, accurately identifying from chromatin data remains a challenge computational biology. Here, we present Sub-Compartment Identifier (SCI), an algorithm that uses graph embedding followed by unsupervised learning to predict using Hi-C data. We find network topological centrality and clustering performance of SCI sub-compartment predictions are superior...

10.1038/s41467-020-14974-x article EN cc-by Nature Communications 2020-03-03

Enhancers are cis -acting DNA regulatory regions that play a key role in distal control of transcriptional activities. Identification enhancers, coupled with comprehensive functional analysis their properties, could improve our understanding complex gene transcription mechanisms and regulation processes general. We developed DENdb, centralized on-line repository predicted enhancers derived from multiple human cell-lines. DENdb integrates by five different methods generating an enriched...

10.1093/database/bav085 article EN cc-by Database 2015-01-01

Abstract Motivation: Cancer cells are often characterized by epigenetic changes, which include aberrant histone modifications. In particular, local or regional silencing is a common mechanism in cancer for expression of tumor suppressor genes. Though several tools have been created to enable detection marks ChIP-seq data from normal samples, it unclear whether these can be efficiently applied generated samples. Indeed, genomes frequent copy number alterations: gains and losses large regions...

10.1093/bioinformatics/btt524 article EN Bioinformatics 2013-09-09

Identifying transcription factor (TF) binding sites (TFBSs) is important in the computational inference of gene regulation. Widely used methods TFBS prediction based on position weight matrices (PWMs) usually have high false positive rates. Moreover, studies regulation eukaryotes frequently require numerous PWM models TFBSs due to a large number TFs involved. To overcome these problems we developed DRAF, novel method for that requires only 14 232 human TFs, while at same time significantly...

10.1093/nar/gky237 article EN cc-by-nc Nucleic Acids Research 2018-03-20

Non-coding RNA (ncRNA) genes play a major role in control of heterogeneous cellular behavior. Yet, their functions are largely uncharacterized. Current available databases lack in-depth information ncRNA across spectrum various cells/tissues. Here, we present FARNA, knowledgebase inferred 10,289 human transcripts (2,734 microRNA and 7,555 long ncRNA) 119 tissues 177 primary cells human. Since transcription factors (TFs) TF co-factors (TcoFs) crucial components regulatory machinery for...

10.1093/nar/gkw973 article EN cc-by-nc Nucleic Acids Research 2016-10-12
Mathys Grapotte Manu Saraswat Chloé Bessière Christophe Menichelli Jordan A. Ramilowski and 95 more Jessica Severin Yoshihide Hayashizaki Masayoshi Itoh Michihira Tagami Mitsuyoshi Murata Miki Kojima-Ishiyama Shohei Noma Shuhei Noguchi Takeya Kasukawa Akira Hasegawa Harukazu Suzuki Hiromi Nishiyori-Sueki Martin C. Frith Imad Abugessaisa Stuart Aitken Bronwen L. Aken Intikhab Alam Tanvir Alam Rami Alasiri Ahmad M. N. Alhendi Hamid Alinejad‐Rokny Mariano J. Alvarez Robin Andersson Takahiro Arakawa Marito Araki Taly Arbel John Archer Alan Archibald Peter Arner Peter Arner Kiyoshi Asai Haitham Ashoor Gaby Åström Magda Babina J. Kenneth Baillie Vladimir B. Bajić Archana Bajpai Sarah Baker Richard M. Baldarelli Adam Balic Mukesh Bansal Arsen O. Batagov Serafim Batzoglou Anthony G Beckhouse Antonio Paolo Beltrami Carlo Alberto Beltrami Nicolas Bertin Sharmodeep Bhattacharya Peter J. Bickel Judith A. Blake Mathieu Blanchette Beatrice Bodega Alessandro Bonetti Hidemasa Bono Jette Bornholdt Michael Bttcher Salim Bougouffa Mette Boyd Jérémie Breda Frank Brombacher James B. Brown Carol J. Bult A. Maxwell Burroughs David W. Burt Annika Busch Giulia Caglio Andrea Califano Christopher JF Cameron Carlo Vittorio Cannistraci Alessandra Carbone Ailsa J Carlisle Piero Carninci Kim W. Carter Daniela Cesselli Jen-Chien Chang Julie C. Chen Yun Chen Marco Chierici John Christodoulou Yari Ciani Emily L. Clark Mehmet Coskun Maria Dalby Emiliano Dalla Carsten O. Daub Carrie Davis Michiel de Hoon Derek de Rie Elena Denisenko Bart Deplancke Michael Detmar Ruslan Deviatiiarov Diego di Bernardo Alexander D. Diehl Lothar C. Dieterich

Using the Cap Analysis of Gene Expression (CAGE) technology, FANTOM5 consortium provided one most comprehensive maps transcription start sites (TSSs) in several species. Strikingly, ~72% them could not be assigned to a specific gene and initiate at unconventional regions, outside promoters or enhancers. Here, we probe these unassigned TSSs show that, all species studied, significant fraction CAGE peaks microsatellites, also called short tandem repeats (STRs). To confirm this transcription,...

10.1038/s41467-021-23143-7 article EN cc-by Nature Communications 2021-06-02

In higher eukaryotes, the identification of translation initiation sites (TISs) has been focused on finding these signals in cDNA or mRNA sequences. Using Arabidopsis thaliana (A.t.) information, we developed a prediction tool for within genomic sequences plants that correspond to TISs. Our requires only genome sequence, not expressed Its sensitivity/specificity is A.t. (90.75%/92.2%), Vitis vinifera (66.8%/94.4%) and Populus trichocarpa (81.6%/94.4%), which suggests our can be used...

10.1093/bioinformatics/bts638 article EN cc-by-nc Bioinformatics 2012-10-30

Comparing histone modification profiles between cancer and normal states, or across different tumor samples, can provide insights into understanding initiation, progression response to therapy. ChIP-seq data of samples are distorted by copy number variation innate any cell. We present HMCan-diff, the first method designed analyze detect changes in modifications two genetic backgrounds, a sample control. HMCan-diff explicitly corrects for bias, other biases data, which significantly improves...

10.1093/nar/gkw1319 article EN cc-by-nc Nucleic Acids Research 2016-12-19

Identification of interactions drugs and proteins is an essential step in the early stages drug discovery finding new uses. Traditional experimental identification validation these are still time-consuming, expensive, do not have a high success rate. To improve this process, development computational methods to predict rank likely drug-target (DTI) with minimum error rate would be great help. In work, we propose method for (Drug-Target interaction prediction using Graph Embedding graph...

10.1145/3386052.3386062 article EN 2020-01-19

Intra-tumoral epigenetic heterogeneity is an indicator of tumor population fitness and linked to the deregulation transcription. However, there no published computational tool automate measurement intra-tumoral allelic heterogeneity. We developed R/Bioconductor package, epihet, calculate perform differential analysis. Furthermore, epihet can implement a biological network analysis workflow for transforming cancer-specific loci into cancer-related function clinical biomarkers. Finally, we...

10.1038/s41598-020-79627-x article EN cc-by Scientific Reports 2021-01-11

Abstract In mammalian cells, transcribed enhancers (TrEns) play important roles in the initiation of gene expression and maintenance levels a spatiotemporal manner. One most challenging questions is how genomic characteristics relate to enhancer activities. To date, only limited number sequence have been investigated, leaving space for exploring enhancers’ DNA code more systematic way. address this problem, we developed novel computational framework, Transcribed Enhancer Landscape Search...

10.1016/j.gpb.2018.05.003 article EN cc-by Genomics Proteomics & Bioinformatics 2018-10-01

Abstract Objective The T1GER study showed that treatment with the TNFα inhibitor golimumab in recently diagnosed type 1 diabetes patients better preservation of endogenous insulin production than placebo. However, considerable variation was observed among subjects. Therefore, a range biomarkers were investigated for their potential to predict response golimumab. Research Design and Methods Baseline blood samples from 79 subjects tested autoantibodies, microRNA, metabolites, lipids,...

10.1101/2023.05.29.23290668 preprint EN cc-by-nd medRxiv (Cold Spring Harbor Laboratory) 2023-06-05

ABSTRACT In mammalian cells, transcribed enhancers (TrEn) play important roles in the initiation of gene expression and maintenance levels spatiotemporal manner. One most challenging questions biology today is how genomic characteristics relate to enhancer activities. This particularly critical, as several recent studies have linked sequence motifs specific functional roles. To date, only a limited number been investigated, leaving space for exploring code more systematic way. address this...

10.1101/188557 preprint EN cc-by-nc bioRxiv (Cold Spring Harbor Laboratory) 2017-09-13
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