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The potential use of circulating tumour DNA in classic Hodgkin lymphoma detection, classification and monitoring is defined.

Disturbances in the gut microbiota of male mice manifest as fitness defects in their offspring by affecting plancenta function, revealing a paternal gut–germline axis.

Mediator is a multiprotein complex required to activate gene transcription by RNAPII. Here, the authors report that MED12 and MED13 are conditional positive regulators that facilitate the expression of genes depleted in active chromatin marks and the induction of gene expression in response to environmental stimuli in Arabidopsis.

The specifics of the pediatric immune response that gives rise to antibodies capable of neutralising diverse HIV-1 strains is not fully understood. Here the authors characterise the immune environment of Simian-HIV infected paediatric macaques and link to antibody neutralisation induction.

DNA methylation in mouse primordial germ cells (PGCs) is restricted to transposable elements, but how this unique DNA methylome is established is poorly understood. Here, the authors identify UHRF2 as a factor required for the selective DNA methylation at transposable elements in PGCs.

The transcription factor ATF6 causes an enrichment in long-chain fatty acids in the colonic epithelium, which leads to changes in the gut microbiota and contributes to the development of colorectal cancer in humans and mice, thereby linking endoplasmic reticulum stress responses to lipid metabolism and tumorigenesis.

Genetic alteration can render tumor cells resistant to immune cell-mediated killing. Here based on a genome-wide CRISPR screening, the authors show that expression of CHMP2A confers tumor cell resistance to NK cell-mediated cytotoxicity, mechanistically involving CHMP2A-dependent regulation of extracellular vesicle secretion.

The 3D chromatin organisation of sex chromosomes within the nucleus remains elusive. This study determines the chromatin architecture of the brown alga Ectocarpus, linking sex-specific chromatin dynamics, histone modification and gene expression to the 3D structure of the U and V sex chromosomes.

Direct library preparation (DLP) is a robust and economic method for preparing large numbers of single-cell whole-genome sequencing libraries without preamplification, to study copy-number heterogeneity at the cell level and other variant types at the clone or population level.

Targeting a gene with two loxP sites is both time and labour intensive. Here the authors present Cre-Controlled CRISPR allowing conditional mutagenesis of a gene of interest and simultaneously labelling the putative mutant cells fluorescently.

The structure and function of the MCR activation complex from Methanococcus maripaludis were revealed, demonstrating its ATP-dependent ability to activate MCR and form methane while uncovering a unique electron transfer pathway involving iron–sulfur clusters similar to the nitrogenase cofactor intermediates.

Intermediate-length repeat expansions in ATXN-2 are the strongest genetic risk factor for ALS. Here, the authors combine patient-derived motor neurons and organoids with mouse models to dissect the pathogenic effects of ATXN2 intermediate expansions.

DNA methylation targets CpG island promoters of germline genes to repress their expression in mouse somatic cells. Here the authors show that a transcription factor E2F6 is required to target CpG island DNA methylation and epigenetic silencing to germline genes during early mouse development.

During embryogenesis, the genome becomes transcriptionally active in a process known as zygotic genome activation (ZGA); how ZGA is initiated is still an open question. Here the authors show histone variant H2A.Z deposition precedes RNA polymerase II binding on chromatin, before ZGA. H2A.Z loss causes transcriptional downregulation of ZGA genes and leads to changes in the 3D genome organization.

Building crystal structures into the electron density is an important step in protein structure solution. Here, the authors recruit online game players, students, and experienced crystallographers to compete in a competition to solve a new structure, and find that crowdsourcing model-building works.

An understanding of the molecular mechanisms promoting the generation of immunoregulatory and tumour-promoting monocytes and macrophages is key to breaking the cycle of tumour myelopoiesis and developing more effective myeloid-targeting therapies.

Cancer stem cells (CSCs) have important roles in tumour initiation, metastasis and treatment resistance. Here, the authors show that C-terminally phosphorylated p27, together with STAT3, mediates the transcriptional regulation of CSC expansion, increasing cancer formation and metastasis in preclinical breast cancer models.

Targeting CD8⁺ T cell exhaustion is a strategy to enhance immune checkpoint inhibition and to fight cancer. Here the authors show a NRF2-dependent role for the prostaglandin I₂ receptor PTGIR in controlling T cell exhaustion.

Using the burden of proof analytical tool, a meta-analysis found weak or no evidence of associations between unprocessed red meat consumption and increased risk of six cardiometabolic disease and cancer outcomes.

A spectroscopic thermal phase curve of GJ 1214b obtained with the JWST in the mid-infrared is reported and a planet with a high metallicity atmosphere blanketed by thick and reflective clouds or haze is found.

The viral delivery of a miniaturized form of a master protein that establishes dyads (nanostructures involved in excitation–contraction coupling in cardiomyocytes) improved dyad architecture and normalized cardiac function under pressure overload.

The transcription factor double homeobox protein (DUX) induces a totipotency-specific regulatory program, including the upregulation of DUXBL. DUXBL subsequently accesses DUX-bound regions and interacts with TRIM24 and TRIM33, thus contributing to totipotency exit.

Planctomycetes are unusual bacteria with complex intracellular compartments and an apparent lack of peptidoglycan in their cell walls. Here, van Teeseling et al. show that the cell wall of an anammox planctomycete does contain peptidoglycan, and propose to redefine planctomycetes as Gram-negative bacteria.

A global network of researchers was formed to investigate the role of human genetics in SARS-CoV-2 infection and COVID-19 severity; this paper reports 13 genome-wide significant loci and potentially actionable mechanisms in response to infection.

Cachexia is associated with poor prognosis in heart failure. Here the authors show that mice and patients with cardiac cachexia display reduced skeletal muscle expression and circulating levels of Musclin. Musclin ablation in skeletal muscle worsens, while its muscle-specific overexpression ameliorates heart failure in mice.

Latitudinal ecosystem boundaries in the global upper ocean may be driven by many factors. Here the authors investigate pole-to-pole eukaryotic phytoplankton metatranscriptomes, gene co-expression networks, and beta diversity, finding that geographic patterns are best explained by temperature gradients.

An analysis of 24,202 critical cases of COVID-19 identifies potentially druggable targets in inflammatory signalling (JAK1), monocyte–macrophage activation and endothelial permeability (PDE4A), immunometabolism (SLC2A5 and AK5), and host factors required for viral entry and replication (TMPRSS2 and RAB2A).

Here the authors show that a gene-inactivating protein complex packs inactive genes into a dynamic and accessible structure. The study challenges the traditional views that restricted accessibility and low dynamics cause gene repression.

The molecular landscape of Fibrolamellar Hepatocellular Carcinoma (FLC), a rare liver cancer, remains to be characterised. Here, multi-omics analysis of liver tumours across different liver cancer subtypes identifies distinct transcriptomic signatures and reveals that PKA activation is the unifying phenotype of FLC.

The large intestine mucosa possesses a surprising plasticity to switch on small intestine genes. Here, Wei G. et al. show that a chromatin complex composed of SATB2, MTA2 and HNF4A regulates this tissue plasticity in the adult gut.

A study comparing the pattern of single-nucleotide variation between unique and duplicated regions of the human genome shows that mutation rate and interlocus gene conversion are elevated in duplicated regions.

A population of TRAIL-positive astrocytes in glioblastoma contributes to an immunosuppressive tumour microenvironment and this mechanism can be targeted with an engineered oncolytic virus to improve outcomes.

Defects in homologous recombination (HR) are found in some triple negative breast cancers, suggesting they may be sensitive to PARP inhibitors. In this phase II clinical trial of the PARP inhibitor rucaparib, changes in Ki67 levels did not correlate with markers of HR deficiency but HR deficiency was detected in 69% of tumours, indicating that PARP inhibitors may be a useful treatment.

The E3 ubiquitin ligase TRIM7 polyubiquitinates the envelope protein of Zika virus, adding Lys63-linked polyubiquitin chains that interact with the TIM1 receptor of host cells to enhance virus entry and replication.

Comparison of transcriptomic data from immune-stimulated cells across different species sheds light on the architecture of the innate immune response.

Targeted degradation has emerged as a powerful therapeutic modality. In this study, the authors develop a lipid-based platform to deliver recombinant bioPROTACs into cells for targeted protein degradation, providing a platform for efficient intracellular degradation of proteins that may elude chemical inhibition.

Overexpression of the FOXM1 transcription factor occurs in several cancer and correlates with poor prognoses. Here, the authors identify a novel small molecule capable of displacing FOXM1 from its DNA consensus motif in vitro, displace it from target promoters and downregulate the expression of its target genes cancer cells.

Sinonasal squamous cell carcinoma (SNSCC) is an uncommon tumor, which has been associated with the human papillomavirus (HPV). Here the authors perform comprehensive genome-wide characterization of HPV-associated and HPV-independent SNSCC patient samples to reveal molecular patterns of tumorigenesis and identify HPV-driven mutational profiles.

Baobab is a long-lived tree that holds great economic, ecological, and cultural value. Here, the authors report haploid chromosome-level reference genome of Adansonia digitata and draft assemblies for a sibling tree, two trees from distinct locations in Africa, and a related species from Madagascar.

Antibiotic resistance genes pose a serious threat to human health, yet the impact of phages on these genes’ transmission in bacterial communities is not well understood. In this study, the authors show that human activities accelerate the movement of phage-encoded antibiotic-resistance genes between habitats.

A case–control study investigating the causes of recent cases of acute hepatitis of unknown aetiology in 32 children identifies an association between adeno-associated virus infection and host genetics in disease susceptibility.

Despite the significance of mosquitos for human health, little research has focused on their phylogeny. Here, the authors present a resolved phylogenetic history of mosquitoes based on phylogenomics showing that these major disease vectors radiated coincidentally with geologic events and the diversification of their hosts.

Wu et al. utilize multiparametric analysis of early-stage human NSCLC to characterize a population of Vδ1 T cells displaying a resident memory and effector memory phenotype, which were associated with ongoing remission.

Imidazole propionate produced by gut microbiota is associated with atherosclerosis in mouse models and in humans, and causes the development of atherosclerosis through activation of the imidazoline-1 receptor in myeloid cells.

Analysis of 97,691 high-coverage human blood DNA-derived whole-genome sequences enabled simultaneous identification of germline and somatic mutations that predispose individuals to clonal expansion of haematopoietic stem cells, indicating that both inherited and acquired mutations are linked to age-related cancers and coronary heart disease.

Current base editors cannot simultaneously edit multiple loci with base-pair level precision, hindering complex genotype generation. Here the authors describe optimized Cas12a gRNA array designs, enabling base-pair conversions at up to 15 loci and with reduced bystander editing rates in human cells.

Bruton’s tyrosine kinase (BTK) is expressed in immune cells and microglia, where its role remains poorly understood. Here, the authors show that BTK modulates microglial neuroinflammatory pathways relevant to multiple sclerosis (MS) and report robust effects of BTK inhibition in human in vitro models and animal models of MS.

Aberrant changes in DNA methylation have been implicated in various neurodevelopmental disorders but remain under studied in developmental and epileptic encephalopathies. Here, the authors demonstrate the diagnostic utility of genome-wide DNA methylation analyses toward identifying molecular etiologies in developmental and epileptic encephalopathies.

A clinical study shows that immunotherapy with anti-HIV-1 antibodies maintains prolonged viral suppression after anti-retroviral treatment is discontinued and affects the size and composition of the intact but not the defective proviral reservoir.