Publications by authors named "D L DiMartino"

Aberrations in the capacity of DNA/chromatin modifiers and transcription factors to bind non-coding regions can lead to changes in gene regulation and impact disease phenotypes. However, identifying distal regulatory elements and connecting them with their target genes remains challenging. Here, we present MethNet, a pipeline that integrates large-scale DNA methylation and gene expression data across multiple cancers, to uncover cis regulatory elements (CREs) in a 1 Mb region around every promoter in the genome.

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Article Synopsis
  • The Omicron XBB.1.5 variant of SARS-CoV-2 was first identified in New York City and quickly became the dominant strain by early 2023.
  • Due to the rise in variants like XBB.1.5, Pfizer-BioNTech and Moderna updated their COVID-19 mRNA vaccines in September 2023, adding a specific component for this variant.
  • A phylogeographic study showed XBB.1.5 likely originated in or near NYC, spreading at a rate similar to the Alpha variant, and there was no significant difference in the prevalence of XBB.1.5 between boosted and unvaccinated individuals in genomic analyses.
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Species within the genus are adept at sharing adaptive allelic variation, with commensal species repeatedly transferring resistance to their pathogenic relative . However, resistance in commensals is infrequently characterized, limiting our ability to predict novel and potentially transferable resistance mechanisms that ultimately may become important clinically. Unique evolutionary starting places of each species will have distinct genomic backgrounds, which may ultimately control the fate of evolving populations in response to selection as epistatic and additive interactions coerce lineages along divergent evolutionary trajectories.

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Background: High rates of vaccination and natural infection drive immunity and redirect selective viral adaptation. Updated boosters are installed to cope with drifted viruses, yet data on adaptive evolution under increasing immune pressure in a real-world situation are lacking.

Methods: Cross-sectional study to characterise SARS-CoV-2 mutational dynamics and selective adaptation over >1 year in relation to vaccine status, viral phylogenetics, and associated clinical and demographic variables.

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One of the main challenges in the fight against coronavirus disease 2019 (COVID-19) stems from the ongoing evolution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into multiple variants. To address this hurdle, research groups around the world have independently developed protocols to isolate these variants from clinical samples. These isolates are then used in translational and basic research-for example, in vaccine development, drug screening or characterizing SARS-CoV-2 biology and pathogenesis.

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