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Background: Viruses and other infectious agents cause more than 15% of human cancer cases. High-throughput sequencing-based studies of virus-cancer associations have mainly focused on cancer transcriptome data.
Methods: In this study, we applied a diverse selection of presequencing enrichment methods targeting all major viral groups, to characterize the viruses present in 197 samples from 18 sample types of cancerous origin. Using high-throughput sequencing, we generated 710 datasets constituting 57 billion sequencing reads.
Results: Detailed in silico investigation of the viral content, including exclusion of viral artefacts, from de novo assembled contigs and individual sequencing reads yielded a map of the viruses detected. Our data reveal a virome dominated by papillomaviruses, anelloviruses, herpesviruses, and parvoviruses. More than half of the included samples contained 1 or more viruses; however, no link between specific viruses and cancer types were found.
Conclusions: Our study sheds light on viral presence in cancers and provides highly relevant virome data for future reference.
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http://dx.doi.org/10.1093/infdis/jiz318 | DOI Listing |
Front Genet
August 2025
Obstetrical Department, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
Introduction: Women with advanced maternal age (AMA) face a higher risk of pregnancy complications including preeclampsia, fetal growth restriction, and preterm birth. While placental dysfunction is implicated, the underlying mechanisms remain unclear. This study employs high-throughput sequencing-based transcriptomics to investigate AMA-associated dysregulation in placental angiogenesis, exploring links to redox imbalance.
View Article and Find Full Text PDFISME Commun
January 2025
Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089, United States.
High-throughput sequencing has provided unprecedented insights into microbial biodiversity in marine and other ecosystems. However, most sequencing-based studies report only relative (compositional) rather than absolute abundance, limiting their application in ecological modeling and biogeochemical analyses. Here, we present a metagenomic protocol incorporating genomic internal standards to quantify the absolute abundances of prokaryotes and eukaryotic phytoplankton, which together form the base of the marine food web, in unfractionated seawater.
View Article and Find Full Text PDFBMC Microbiol
August 2025
Institute of Medical Microbiology and Hospital Hygiene, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
Background: The vaginal microbiome plays an important role in female health; it is associated with reproductive success, susceptibility to sexually transmitted infections, and, importantly, the most prevalent vaginal condition in reproduction-age women, bacterial vaginosis (BV). Traditionally, 16S rRNA gene sequencing-based approaches have been used to characterize the composition of vaginal microbiomes, but shallow shotgun metagenomic sequencing (SMS) approaches, in particular when implemented with the Oxford Nanopore Technologies, have important potential advantages with respect to cost effectiveness, speed of data generation, and the availability of flexible multiplexing schemes.
Results: Based on a study cohort of n = 52 women, of which 23 were diagnosed with BV, we evaluated the applicability of Nanopore-based SMS for the characterization of vaginal microbiomes in direct comparison to Illumina 16S-based sequencing.
Trends Genet
August 2025
Life Sciences Institute and The Second Affiliated Hospital, Zhejiang University, Hangzhou 310058, Zhejiang Province, China. Electronic address:
The genome is packaged with nuclear proteins and RNAs into a complex structure known as chromatin. Its dynamic organization influences genome functions and nuclear properties. Since 2009, high-throughput DNA sequencing methods such as Hi-C and ChIA-PET have pioneered genome-wide mapping of chromatin folding architectures and have given rise to the field of three-dimensional (3D) genome biology.
View Article and Find Full Text PDFRev Assoc Med Bras (1992)
August 2025
Diagnósticos da América S.A.- São Paulo (SP), Brazil.
Objective: This study aimed to evaluate whether the increased use of exome sequencing as a primary next-generation sequencing test provides a higher diagnostic yield compared to multi-gene panels for various clinical indications within a Brazilian cohort.
Methods: We retrospectively analyzed test results from 3,025 patients who underwent single-gene tests, multi-gene panels, and exome sequencing in our laboratory. The results were categorized as positive, inconclusive, or negative, with clinical indications including neurodevelopmental, late-onset neurological, neuromuscular, syndromic, skin/hair, hematological/immunologic, ophthalmologic, inborn errors of metabolism, skeletal, cardiovascular, reproductive planning, cancer, genitourinary, gastrointestinal, and hearing disorders.