ArticleAnimal bioscience2024
RNA helicase DEAD-box-5 is involved in R-loop dynamics of preimplantation embryos.
Article in Animal bioscience, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 6 citations in OpenAlex.
- INO80 regulates promoter-associated R-loops to coordinate transcription and maintain genome stability in embryonic stem cells.Biological research · 2026Article
- ZC3H12D and DDX5 Antagonistically Regulate Cyclin D1 mRNA Stability and Cell Cycle Progression in Breast Cancer.Cancer medicine · 2025Article
- Peptidomic and Proteomic Signatures in Human Blood Serum, Follicular Fluid and Spent Media: A Study of Embryo Development Competency after In Vitro Fertilization.Reproductive sciences (Thousand Oaks, Calif.) · 2025Article
- Beyond the Synapse:International journal of molecular sciences · 2024Review
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Authors and funding
13 authors at 3 institutions in 2 countries.
Funding
Abstract
objectiveR-loops are DNA:RNA triplex hybrids, and their metabolism is tightly regulated by transcriptional regulation, DNA damage response, and chromatin structure dynamics. R-loop homeostasis is dynamically regulated and closely associated with gene transcription in mouse zygotes. However, the factors responsible for regulating these dynamic changes in the R-loops of fertilized mouse eggs have not yet been investigated. This study examined the functions of candidate factors that interact with R-loops during zygotic gene activation.
methodsIn this study, we used publicly available next-generation sequencing datasets, including low-input ribosome profiling analysis and polymerase II chromatin immunoprecipitation-sequencing (ChIP-seq), to identify potential regulators of R-loop dynamics in zygotes. These datasets were downloaded, reanalyzed, and compared with mass spectrometry data to identify candidate factors involved in regulating R-loop dynamics. To validate the functions of these candidate factors, we treated mouse zygotes with chemical inhibitors using in vitro fertilization. Immunofluorescence with an anti-R-loop antibody was then performed to quantify changes in R-loop metabolism.
resultsWe identified DEAD-box-5 (DDX5) and histone deacetylase-2 (HDAC2) as candidates that potentially regulate R-loop metabolism in oocytes, zygotes and two-cell embryos based on change of their gene translation. Our analysis revealed that the DDX5 inhibition of activity led to decreased R-loop accumulation in pronuclei, indicating its involvement in regulating R-loop dynamics. However, the inhibition of histone deacetylase-2 activity did not significantly affect R-loop levels in pronuclei.
conclusionThese findings suggest that dynamic changes in R-loops during mouse zygote development are likely regulated by RNA helicases, particularly DDX5, in conjunction with transcriptional processes. Our study provides compelling evidence for the involvement of these factors in regulating R-loop dynamics during early embryonic development.
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