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| Open AccessSevere drought exposure in utero associates to children’s epigenetic age acceleration in a global climate change hot spot
The study suggests a positive association between in utero drought exposure and faster biological aging in children in a global climate change hot spot. Drought experienced during pregnancy may reduce life expectancy.
- Xi Qiao
- , Bilinda Straight
- & Belinda L. Needham
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Article
| Open AccessPost-translational modification-dependent oligomerization switch in regulation of global transcription and DNA damage repair during genotoxic stress
Here the authors show that the human transcription elongation factor AF9, part of Super Elongation Complex (SEC), undergoes oligomerization which can be reverted by post-translational modification in regulation of global transcription.
- Prathama Talukdar
- , Sujay Pal
- & Debabrata Biswas
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Article
| Open AccessNuclear actin structure regulates chromatin accessibility
Intranuclear actin contributes to nuclear structure. Inducing actin remodeling within the nucleus regulates chromatin accessibility, and is associated with phenotypic outcomes in mesenchymal stem cells. As such, dynamic actin remodeling may modulate gene expression.
- Buer Sen
- , Zhihui Xie
- & Janet Rubin
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Article
| Open AccessStructures of H5N1 influenza polymerase with ANP32B reveal mechanisms of genome replication and host adaptation
The authors demonstrate how avian H5N1 influenza A virus polymerase interacts with human ANP32B to facilitate the replication of the viral genetic information in mammalian hosts, revealing insights into cross-species transmission.
- Ecco Staller
- , Loïc Carrique
- & Ervin Fodor
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Article
| Open AccessQuantifying 3′UTR length from scRNA-seq data reveals changes independent of gene expression
While gene expression analysis is commonly performed, 3′UTR length analysis is limited due to technical challenges. Here the authors provide an open-access analysis pipeline for scRNA-seq data to simultaneously quantify gene expression and 3′UTR length.
- Mervin M. Fansler
- , Sibylle Mitschka
- & Christine Mayr
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Article
| Open AccessTranscription stress at telomeres leads to cytosolic DNA release and paracrine senescence
Cellular senescence and the process of transcription are intimately linked, yet the mechanisms involved remain unclear. Here the authors show that a defect in TFIIS leads to telomere dysfunction, genome instability and the release of vesicles that induce senescence to neighboring cells.
- Athanasios Siametis
- , Kalliopi Stratigi
- & George A. Garinis
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Article
| Open AccessGRouNdGAN: GRN-guided simulation of single-cell RNA-seq data using causal generative adversarial networks
Benchmarking GRN inference methods remains a challenge. Here, authors present GRouNdGAN, a causal generative model that imposes a user-defined GRN in its architecture to simulate realistic single-cell data, bridging the gap between synthetic and biological data benchmarks of GRN inference methods.
- Yazdan Zinati
- , Abdulrahman Takiddeen
- & Amin Emad
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Article
| Open AccessTransfer learning enables identification of multiple types of RNA modifications using nanopore direct RNA sequencing
Simultaneous profiling of multiple RNA modifications is a promising yet understudied field of research. Here, authors develop a transferable deep learning framework capable of detecting multiple types of RNA modifications in single nanopore sequencing sample.
- You Wu
- , Wenna Shao
- & Xiang Yu
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Article
| Open AccessdsRNAi-mediated silencing of PIAS2beta specifically kills anaplastic carcinomas by mitotic catastrophe
Anaplastic thyroid cancer (ATC) is a particularly aggressive cancer type with limited effective therapeutic options. Here, the authors identify the SUMO E3 ligase PIAS2 as a potential therapeutic target in ATC and mechanistically investigate its role in mitotic spindle and centrosome assembly.
- Joana S. Rodrigues
- , Miguel Chenlo
- & Clara V. Alvarez
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Article
| Open AccessmTORC1 regulates cell survival under glucose starvation through 4EBP1/2-mediated translational reprogramming of fatty acid metabolism
How cells adapt to glucose starvation is still elusive. Here, Levy et al. show that the mTOR substrate 4EBP1 protects human, mouse, and yeast cells from glucose starvation and is exploited by cancer cells to promote tumorigenesis.
- Tal Levy
- , Kai Voeltzke
- & Gabriel Leprivier
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Article
| Open AccessDeep mutational scanning reveals a correlation between degradation and toxicity of thousands of aspartoacylase variants
The details of how the protein folding and degradation systems collaborate to combat potentially toxic non-native proteins are unknown. Here the authors perform systematic studies of missense and nonsense variants of the cytosolic aspartoacylase, ASPA, where loss-of-function variants are linked to Canavan disease.
- Martin Grønbæk-Thygesen
- , Vasileios Voutsinos
- & Rasmus Hartmann-Petersen
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Article
| Open AccessMethylation of ESCRT-III components regulates the timing of cytokinetic abscission
Methylation of CHMP2B regulates abscission timing by modulating ESCRT-III dynamics during cytokinesis. This methylation also plays a role in HIV-1 budding, highlighting the broader significance of ESCRT-III methylation.
- Aurélie Richard
- , Jérémy Berthelet
- & Souhila Medjkane
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Article
| Open AccessMultiscale modelling of chromatin 4D organization in SARS-CoV-2 infected cells
In this work, the authors apply polymer models to reconstruct the 3D structure of the genome during SARS-CoV-2 infection and examine how the virus impacts key mechanisms of chromatin organization.
- Andrea M. Chiariello
- , Alex Abraham
- & Mario Nicodemi
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Article
| Open AccessMultimodal binding and inhibition of bacterial ribosomes by the antimicrobial peptides Api137 and Api88
Proline-rich antimicrobial peptides (PrAMPs) inhibit bacterial protein biosynthesis. Here, the authors show that the honey-bee derived PrAMPs Api137 and Api88 inhibit bacterial ribosomes through multiple mechanisms, promising for drug development.
- Simon M. Lauer
- , Maren Reepmeyer
- & Ralf Hoffmann
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Article
| Open AccessA nascent riboswitch helix orchestrates robust transcriptional regulation through signal integration
Here the authors unveil an intermediate state during the folding of the manganese riboswitch from L. lactis. This transient state allows the integration of multiple cellular signals including RNA polymerase pausing and transcription factor NusA.
- Adrien Chauvier
- , Shiba S. Dandpat
- & Nils G. Walter
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Article
| Open AccessUnveiling the A-to-I mRNA editing machinery and its regulation and evolution in fungi
A-to-I editing in animals is catalyzed by enzymes of the Adenosine Deaminase Acting on RNA family, orthologues of which do not exist in fungi. Here, Feng et al. characterise the enzymes involved in A-to-I mRNA editing in Fusarium graminearum.
- Chanjing Feng
- , Kaiyun Xin
- & Huiquan Liu
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Article
| Open AccessThree concurrent mechanisms generate gene copy number variation and transient antibiotic heteroresistance
Bacterial heteroresistance is a medically relevant phenotype where small antibiotic-resistant subpopulations coexist within predominantly susceptible bacterial populations. Here, Nicoloff et al. describe how three different mechanisms that increase the copy number of resistance genes can lead to unstable and transient heteroresistance.
- Hervé Nicoloff
- , Karin Hjort
- & Helen Wang
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Article
| Open AccessPrediction of m6A and m5C at single-molecule resolution reveals a transcriptome-wide co-occurrence of RNA modifications
The epitranscriptome holds many unexplored RNA functions, but detecting multiple modifications from one sample remains challenging. Here, authors devise a strategy combining AI and nanopore sequencing to uncover a transcriptome-wide co-occurrence of two modification types in individual RNA molecules.
- P Acera Mateos
- , A J Sethi
- & E Eyras
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Article
| Open AccessA common polymorphism in the Intelectin-1 gene influences mucus plugging in severe asthma
Type 2 inflammation drives the formation of pathologic mucus in patients with asthma. Here, authors reveal a role for intelectin-1 in IL-13-induced mucus properties, and that an ITLN1 eQTL is associated with protection from the formation of mucus plugs in T2-high asthma.
- Jamie L. Everman
- , Satria P. Sajuthi
- & Max A. Seibold
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Article
| Open AccessIdentification and characterization of small molecule inhibitors of the LINE-1 retrotransposon endonuclease
The LINE-1 retrotransposon is a target for the development of therapies to treat age-associated disease. Here the AUs describes the characterization of small molecule inhibitors of the endonuclease domain of LINE-1.
- Alexandra M. D’Ordine
- , Gerwald Jogl
- & John M. Sedivy
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Article
| Open AccessMeCP2 binds to methylated DNA independently of phase separation and heterochromatin organisation
The heterochromatic 'condensates' may not be conserved across mammals. This study highlights the influence of host genome on nuclear architecture and challenges the hypothesis that heterochromatin and MeCP2 undergo phase separation.
- Raphaël Pantier
- , Megan Brown
- & Adrian Bird
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Article
| Open AccessThe miR-144/Hmgn2 regulatory axis orchestrates chromatin organization during erythropoiesis
Differentiation of stem and progenitor cells is a highly regulated process. Here, the authors uncover miR-144 and its target Hmgn2 as the backbone of the genetic regulatory circuit that controls the terminal differentiation of erythrocytes in vertebrates.
- Dmitry A. Kretov
- , Leighton Folkes
- & Daniel Cifuentes
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Article
| Open AccessSpatially revealed roles for lncRNAs in Drosophila spermatogenesis, Y chromosome function and evolution
In Drosophila, long noncoding RNAs (lncRNAs) are expressed most highly in male germline cells. Here the authors report the subcellular distributions of approximately 600 Drosophila lncRNAs in male reproductive tissues, indicating potential involvement in spermatogenesis, fertility and evolution.
- Zhantao Shao
- , Jack Hu
- & Henry M. Krause
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Article
| Open AccessCRISPR-dCas13d-based deep screening of proximal and distal splicing-regulatory elements
Here the authors develop Splice-RUSH, a high-throughput screening method to map both proximal and distal splicing-regulatory sequences in a native sequence context. These sequences can also be targeted by ASOs to modulate splicing.
- Yocelyn Recinos
- , Dmytro Ustianenko
- & Chaolin Zhang
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Article
| Open AccessAllosteric regulation by c-di-AMP modulates a complete N-acetylglucosamine signaling cascade in Saccharopolyspora erythraea
c-di-AMP is essential for bacterial signaling. Here, the authors identify the GlcNAc-sensing regulator DasR as a c-di-AMP receptor and provide molecular insight into their signaling effect on the developmental and antibiotic biosynthesis control across Actinobacteria.
- Di You
- , Liu-Chang Zhao
- & Bang-Ce Ye
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Article
| Open AccessA conserved N-terminal motif of CUL3 contributes to assembly and E3 ligase activity of CRL3KLHL22
The assembly integrity of dimeric CRL3 E3 ligases are important in various physiological and pathological processes. Here, the authors show that an evolutionarily conserved CUL3 N-terminal motif contributes to both the assembly and activity of dimeric CRL3 E3 ligases.
- Weize Wang
- , Ling Liang
- & Yuxin Yin
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Article
| Open AccessDisentangling genetic effects on transcriptional and post-transcriptional gene regulation through integrating exon and intron expression QTLs
Expression quantitative trait loci (eQTL) studies typically only consider exon expression levels and discard intronic RNA sequencing reads. Here, the authors show that analyzing eQTLs together with QTLs for intron levels and exon-intron ratios expands the number and functional understanding of genetic effects on gene regulatory processes.
- Anneke Brümmer
- & Sven Bergmann
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Article
| Open AccessTargeting adipocyte ESRRA promotes osteogenesis and vascular formation in adipocyte-rich bone marrow
Excessive bone marrow adipocytes accumulation is involved in bone deterioration. Here, the authors show that adipocyte ESRRA abrogation promotes osteogenesis and vascular formation in adipocyte-rich bone marrow via oppositely regulating the expression and secretion of leptin and SPP1.
- Tongling Huang
- , Zhaocheng Lu
- & Min Guan
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Article
| Open AccessPrimordial germ cell DNA demethylation and development require DNA translesion synthesis
Here the authors show that DNA translesion synthesis affects primordial germ cell DNA demethylation and plays a role in the development of embryonic germ cells.
- Pranay Shah
- , Ross Hill
- & Gerry P. Crossan
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Article
| Open AccessLncRNA-LncDACH1 mediated phenotypic switching of smooth muscle cells during neointimal hyperplasia in male arteriovenous fistulas
Arteriovenous fistulas are the most common vascular access points for hemodialysis, but they have a high incidence of postoperative dysfunction, mainly due to excessive neointimal hyperplasia. Here, the author shows that LncDACH1 regulates NIH through the HSP90/ SRPK1/ AKT signaling axis.
- Zhaozheng Li
- , Yao Zhao
- & Jundong Jiao
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Article
| Open AccessThe DEAD-box RNA helicase PfDOZI imposes opposing actions on RNA metabolism in Plasmodium falciparum
Min and colleagues study post-transcriptional regulation in the malaria parasite. They describe opposing actions of the DDX6-family RNA helicase complex on the decay and protection of specific mRNA targets during development and stress conditions.
- Hui Min
- , Xiaoying Liang
- & Liwang Cui
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Article
| Open AccessSynthetic intrinsically disordered protein fusion tags that enhance protein solubility
Insoluble protein expression continues to be a bottleneck for biotechnology. Here, Chilkoti and colleagues report a method for generating and identifying hypersoluble intrinsically disordered protein fusion tags to improve soluble protein expression and rescue protein function.
- Nicholas C. Tang
- , Jonathan C. Su
- & Ashutosh Chilkoti
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Article
| Open AccessMultimodal analysis of cfDNA methylomes for early detecting esophageal squamous cell carcinoma and precancerous lesions
Esophageal squamous cell carcinoma is most commonly detected at a late stage, which limits survival and treatment options. Here, the authors utilise whole genome bisulfite sequencing to create a cfDNA framework to detect cfDNA methylation, copy number variants and fragmentation.
- Jiaqi Liu
- , Lijun Dai
- & Zhihua Liu
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Article
| Open AccessThe impact of exercise on gene regulation in association with complex trait genetics
It is known that exercise influences many human traits, but not which tissues and genes are most important. This study connects transcriptome data collected across 15 tissues during exercise training in rats as part of the Molecular Transducers of Physical Activity Consortium with human data to identify traits with similar tissue specific gene expression signatures to exercise.
- Nikolai G. Vetr
- , Nicole R. Gay
- & Stephen B. Montgomery
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Article
| Open AccessGlis2 is an early effector of polycystin signaling and a target for therapy in polycystic kidney disease
Cyst growth in autosomal dominant polycystic kidney disease (ADPKD) is driven by unknown molecular signals that require the presence of intact primary cilia in the absence of the PKD gene products. Here, the authors show that the transcription factor Glis2 is a key effector of this cilia dependent cyst growth pathway and a potential target for therapy in ADPKD
- Chao Zhang
- , Michael Rehman
- & Stefan Somlo
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Article
| Open AccessIdentifying tumor type and cell type-specific gene expression alterations in pediatric central nervous system tumors
The molecular features of paediatric central nervous system (CNS) tumours are not fully understood, posing a challenge for targeted therapies. Here, the authors characterise paediatric CNS tumours using single-nucleus RNA-seq; they identify cell type populations associated with specific tumour types and with response to therapy.
- Min Kyung Lee
- , Nasim Azizgolshani
- & Brock C. Christensen
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Article
| Open AccessAssociations in cell type-specific hydroxymethylation and transcriptional alterations of pediatric central nervous system tumors
Cell type-specific epigenomic alterations and heterogeneity in paediatric central nervous system (CNS) tumours remain underexplored. Here, the authors integrate bulk DNA cytosine modification data with bulk and single-nucleus RNA-sequencing to explore cell type-specific epigenomic alterations and gene regulation in paediatric CNS tumours.
- Min Kyung Lee
- , Nasim Azizgolshani
- & Brock C. Christensen
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Article
| Open AccessAtypical heat shock transcription factor HSF5 is critical for male meiotic prophase under non-stress conditions
The regulation of meiotic prophase progression varies between males and females. This study reveals the involvement of an atypical heat shock transcription factor HSF5 in gene expression during male meiotic prophase and highlights the involved gene regulatory mechanism.
- Saori Yoshimura
- , Ryuki Shimada
- & Kei-ichiro Ishiguro
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Article
| Open AccessLinear interaction between replication and transcription shapes DNA break dynamics at recurrent DNA break Clusters
In neural progenitor cells, recurrent DNA break clusters (RDCs) occur to genes crucial for brain function. Here the authors find that most RDCs emerge at long-traveling unidirectional replication forks, and often unrelated to R-loops.
- Lorenzo Corazzi
- , Vivien S. Ionasz
- & Pei-Chi Wei
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Article
| Open AccessThe pRb/RBL2-E2F1/4-GCN5 axis regulates cancer stem cell formation and G0 phase entry/exit by paracrine mechanisms
Cancer stem cells (CSCs) are associated with chemoresistance and poor prognosis in multiple cancer types. Here, the authors investigate the role of secreted Wnt ligands in pancreatic and breast CSCs and identify E2F1/4-GCN5-pRb/RBL2 as a regulatory axis underlying Wnt secretion.
- Chao-Hui Chang
- , Feng Liu
- & Siim Pauklin
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Article
| Open AccessEfficient gene knockout and genetic interaction screening using the in4mer CRISPR/Cas12a multiplex knockout platform
Paralog synthetic lethals have been assessed with multiple CRISPR-based methods, but systematic comparison among these platforms is unavailable. Here, the authors systematically compare combinatorial perturbation platforms and establish the in4mer CRISPR/Cas12a multiplex knockout platform.
- Nazanin Esmaeili Anvar
- , Chenchu Lin
- & Traver Hart
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Article
| Open AccessLSD1 inhibition circumvents glucocorticoid-induced muscle wasting of male mice
Even though glucocorticoids are potent anti-inflammatory agents, they can cause muscle wasting. Here, the authors show that targeting the glucocorticoid receptor coactivator LSD1 limits muscle loss without reducing the drugs’ efficiency on the immune system.
- Qingshuang Cai
- , Rajesh Sahu
- & Delphine Duteil
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Article
| Open AccessHBO1 catalyzes lysine lactylation and mediates histone H3K9la to regulate gene transcription
The regulatory mechanism and functional consequence of lysine lactylation remain to be explored. Here, the authors identify HBO1 as a lysine lactyltransferase and suggest a potential role of HBO1 in tumorigenesis through H3K9la-mediated transcription regulation.
- Ziping Niu
- , Chen Chen
- & Kai Zhang
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Article
| Open AccessOxygen enhances antiviral innate immunity through maintenance of EGLN1-catalyzed proline hydroxylation of IRF3
Oxygen is an essential requirement for aerobic organisms. Here the authors explore the role of oxygen in the antiviral innate response in multiple models of infection and suggest oxygen enhances the antiviral innate response via EGLN1 hydroxylation of IRF3.
- Xing Liu
- , Jinhua Tang
- & Wuhan Xiao
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Article
| Open AccessPersistent TFIIH binding to non-excised DNA damage causes cell and developmental failure
Hereditary nucleotide excision repair deficiencies cause different cancerous and progeroid disorders of which the exact etiology is not understood. This study finds that prolonged binding of DNA repair factor TFIIH to DNA damage contributes to a more severe phenotype caused by DNA repair deficiency.
- Alba Muniesa-Vargas
- , Carlota Davó-Martínez
- & Hannes Lans
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Article
| Open AccessChromosome organization shapes replisome dynamics in Caulobacter crescentus
Whether bacterial replisome progression follows a “factory” or “track” model remains a long-standing controversy. Here, the authors find that cells can switch between the two models, in a process governed by dynamic chromosome organization processes.
- Chen Zhang
- , Asha Mary Joseph
- & Suliana Manley
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Article
| Open AccessFlexible TAM requirement of TnpB enables efficient single-nucleotide editing with expanded targeting scope
Here the authors report that a thermophilic archaeal TnpB enables efficient gene editing in the natural host: they see that the TnpB has different TAM requirements for eliciting cell death and for facilitating gene editing. They show that TnpB can be harnessed for flexible single-nucleotide editing with templated repair.
- Xu Feng
- , Ruyi Xu
- & Qunxin She
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Article
| Open AccessCoCas9 is a compact nuclease from the human microbiome for efficient and precise genome editing
Cas9 nucleases hold clinical significance for genome editing therapies. Here the authors characterize CoCas9, a compact, efficient and precise Cas9 from the human microbiome, and show that delivery via AAV vectors enables efficient editing in the mouse retina, expanding the genome editing toolbox.
- Eleonora Pedrazzoli
- , Michele Demozzi
- & Anna Cereseto
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Article
| Open AccessTyrosine phosphorylation of CARM1 promotes its enzymatic activity and alters its target specificity
Coactivator-associated arginine methyltransferase 1 (CARM1) is an important target in hematologic malignancies. In this work, the authors show that the hyperactivation of Janus kinase 2 (JAK2) by the V617F mutation phosphorylates CARM1 which regulates its methyltransferase activity and alters its target specificity.
- Hidehiro Itonaga
- , Adnan K. Mookhtiar
- & Stephen D. Nimer
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