This Special Issue of International Journal of Molecular Sciences (IJMS) is dedicated to the mechanisms mediated at the molecular and cellular levels in response to adverse genomic perturbations and DNA replication stress. The relevant proteins and processes play paramount roles in nucleic acid transactions to maintain genomic stability and cellular homeostasis. A total of 18 articles are presented which encompass a broad range of highly relevant topics in genome biology. These include replication fork dynamics, DNA repair processes, DNA damage signaling and cell cycle control, cancer biology, epigenetics, cellular senescence, neurodegeneration, and aging. As Guest Editor for this IJMS Special Issue, I am very pleased to offer this collection of riveting articles centered on the theme of DNA replication stress. The blend of articles builds upon a theme that DNA damage has profound consequences for genomic stability and cellular homeostasis that affect tissue function, disease, cancer, and aging at multiple levels and through unique mechanisms. I thank the authors for their excellent contributions, which provide new insight into this fascinating and highly relevant area of genome biology.
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Werner Syndrome A549 cells epigenetic neurodegeneration Genome integrity adaptation cellular senescence genome instability Werner Syndrome Protein lipofuscin cell cycle checkpoints exonuclease 1 template-switching energy metabolism mutation frequency DNA replication fork regression motor neuron disease Microsatellites Alzheimer's disease chromatin remodeler repair of DNA damage AP site analogue mutagens replication timing Thermococcus eurythermalis nucleolar stress gene expression mutations spectra origin firing Fanconi Anemia superfamily 2 ATPase DNA translocation DNA repair SSB signaling homologous recombination common fragile sites 8-chloro-adenosine replication genome stability mutagenicity fork reversal multiple sclerosis non-B DNA protein stability heterogeneity ubiquitin SenTraGorTM (GL13) replication restart EdU ?-arrestin NER aging SSB end resection oxidative stress ATR dormant origins R loops DNA damage response Difficult-to-Replicate Sequences DNA double-strand repair endonuclease IV ALS double strand break repair premature aging replication stress EXO1 POL? translesion synthesis strand displacements G2-arrest DNA replication pattern SSB repair genome integrity G protein-coupled receptor kinase interacting protein 2 (GIT2) MMR replicative stress senolytics spacer interactome ATR-Chk1 DDR pathway C9orf72 replication fork restart translesion DNA synthesis DNA damage mismatch repair DNA replication stress DNA helicase Polymerase kappa DNA fiber assay H1299 cells TLS APE2 ageing cell death chromosome TopBP1 barley clock proteins post-translational modification 8-oxoG S phase ataxia telangiectasia mutated (ATM) G protein-coupled receptor (GPCR) Polymerase eta cancer G protein-coupled receptor kinase (GRK) helicase genomic instability Parkinson's disease nucleotide excision repair SupF