Publications by authors named "Esther Mellado-Gomez"

Long-range sequencing grants insight into additional genetic information beyond what can be accessed by both short reads and modern long-read technology. Several new sequencing technologies, such as "Hi-C" and "Linked Reads", produce long-range datasets for high-throughput and high-resolution genome analyses, which are rapidly advancing the field of genome assembly, genome scaffolding, and more comprehensive variant identification. In this review, we focused on five major long-range sequencing technologies: high-throughput chromosome conformation capture (Hi-C), 10X Genomics Linked Reads, haplotagging, transposase enzyme linked long-read sequencing (TELL-seq), and single- tube long fragment read (stLFR).

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Respiratory syncytial virus (RSV) is the leading cause of hospitalisation for respiratory infection in young children. RSV disease severity is known to be age-dependent and highest in young infants, but other correlates of severity, particularly the presence of additional respiratory pathogens, are less well understood. In this study, nasopharyngeal swabs were collected from two cohorts of RSV-positive infants <12 months in Spain, the UK, and the Netherlands during 2017-20.

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Article Synopsis
  • Human respiratory syncytial virus (RSV) causes significant lower respiratory infections in young children, yet its within-host diversity remains poorly understood.
  • Analysis of deep-sequencing data from 319 nasopharyngeal swabs showed that RSV-B has lower overall genetic diversity but greater variability within individual hosts compared to RSV-A.
  • Key mutations in the F protein of RSV-B may lead to resistance against emerging RSV treatments, highlighting the need to monitor these viral changes for effective vaccination strategies.
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Liver disease is a major cause of premature death. Oxidative stress in the liver represents a key disease driver. Compounds, such as dimethyl fumarate (DMF), can activate the antioxidant response and are used clinically to treat disease.

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Article Synopsis
  • Intestinal mesenchymal cells are crucial for maintaining gut health and managing inflammation, but their variability in the colon is not well understood.
  • By analyzing over 16,500 colonic mesenchymal cells, researchers identified four distinct fibroblast subsets with different gene expressions and roles, including a key group that supports stem cell functions near epithelial crypts.
  • In colitis, changes in this niche lead to an active mesenchymal population that produces factors worsening inflammation and affecting gut cell growth, highlighting their role in inflammatory bowel disease (IBD).
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Background: Single-cell RNA-Seq can be a valuable and unbiased tool to dissect cellular heterogeneity, despite the transcriptome's limitations in describing higher functional phenotypes and protein events. Perhaps the most important shortfall with transcriptomic 'snapshots' of cell populations is that they risk being descriptive, only cataloging heterogeneity at one point in time, and without microenvironmental context. Studying the genetic ('nature') and environmental ('nurture') modifiers of heterogeneity, and how cell population dynamics unfold over time in response to these modifiers is key when studying highly plastic cells such as macrophages.

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