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Common genetic variants associated with plasma lipids have been extensively studied for a better understanding of common diseases. Here, the authors use whole-genome sequencing of 16,324 individuals to analyze rare variant associations and to determine their monogenic and polygenic contribution to lipid traits.

Radiotherapy induces expression of the EGFR ligand amphiregulin, which promotes metastasis growth at remote sites in mouse models and human patients by shifting myeloid cells towards an immunosuppressive state.

A study reveals a gut–brain sensory pathway through which the microbial component flagellin activates neuropod cells in the colon to signal the brain and reduce feeding in mice.

A study of the evolution of the SARS-CoV-2 virus in England between September 2020 and June 2021 finds that interventions capable of containing previous variants were insufficient to stop the more transmissible Alpha and Delta variants.

Energy homeostasis requires brain sensing of peripheral metabolic signals. Here, the authors show that energy-state-dependent aggrecan deposits by hypothalamic neurons at a key interface gate brain entry of blood-borne signals and thus food intake.

Most genetic association studies have been done on single nucleotide polymorphisms and small indels, while other types of variants have been less studied. Here, the authors use whole genome sequencing in a diverse population to identify and provide experimental evidence for associations between structural variants and blood-cell traits.

The oncoprotein c-Myc is often overexpressed in triple negative breast cancer and has a role in tumor progression and resistance to therapy. Here the authors show that elevated MYC expression is correlated with low immune infiltration, diminished MHC-I pathway expression and that CpG/aOX40 treatment could overcome resistance to PD-L1 blockade in MYC-high breast tumors.

van Lengerich et al. developed a human TREM2 antibody with a transport vehicle (ATV) that improves brain exposure and biodistribution in mouse models. ATV:TREM2 promotes microglial energetic capacity and metabolism via mitochondrial pathways.

The principal layer architecture of the sensory cortex is altered with aging. The authors show that overall thinning of the primary somatosensory cortex is driven by deep layer degeneration but that layer IV is more pronounced in old age.

Through circuit dissection in juvenile, adolescent and adult mice, Klune, Goodpaster and colleagues reveal multiple developmental switches in mPFC–NAc and mPFC–BLA pathways that underlie developmental transitions in threat avoidance behavior.

Mauthe et al. find that protein aggregate clearance requires fragmentation of the aggregate by a chaperone module and a proteasomal regulatory particle for recruitment and clustering of selective autophagy receptors to initiate phagophore formation.

Mothers can fiercely defend their young, but how the brain triggers this response remains to a large extent a mystery. Here, authors show that a dormant, hormone-sensitive brain circuit switches on to spark maternal aggression during the lactation period.

TFE3-fusions are known to drive both epithelial and mesenchymal renal tumors. Here, the authors generate a transgenic mouse model of renal tumorigenesis expressing the human SFPQ-TFE3 fusion, showing that the fusion regulates mTORC1 activity and induces lineage plasticity.

Vaccination-induced antibody responses wane, but protection from infection often lasts longer. Here the authors boost-immunize rhesus macaques with pre-existing hybrid immunity using new bivalent SARS-CoV-2 vaccine, and find that protection from subsequent infection correlates with immune infiltration in the lung.

Convergent mutations in hot spots of the spike proteins of currently circulating SARS-CoV-2 Omicron variants increase the binding affinity for the host receptor and promote more efficient fusion with host cell membranes.

SARS-CoV-2 replication in the murine lung requires the spike furin cleavage site, which is then lost during divergence in the brain.

Genome-wide association analyses of 41,917 bipolar disorder cases and 371,549 controls of European ancestry provide new insights into the etiology of this disorder and identify novel therapeutic leads and potential opportunities for drug repurposing.

Genetic mosaicism is frequently present in monogenic diseases of the central nervous system. Here the authors design a dual-colour reporter system that can be used to tune the degree of mosaicism in mouse models.

Ionic levels in neurons provide the potential energy for all neuronal communication. Here the. authors show a very large modulation of [Cl^-]_i neocortical pyramidal cells, from day to night, with marked effects on cortical excitability and processing.

Although the common genetic variants contributing to blood lipid levels have been studied, the contribution of rare variants is less understood. Here, the authors perform a rare coding and noncoding variant association study of blood lipid levels using whole genome sequencing data.

Cannabinoid CB₂ receptor (CB₂R) agonists are investigated as therapeutic agents in the clinic. Here, authors report the discovery of LEI-102, a CB₂R agonist, used in conjunction with three other CBR ligands (APD371, HU308, and CP55,940) to investigate selective CB₂R activation.

Analysis of 4,041 single-nucleotide variants (SNVs) linked to 13 cancers performed in primary human cell types identifies 380 potentially regulatory SNVs and their putative target genes. Editing one SNV, rs10411210, revealed that the risk allele increases RHPN2 expression and stimulus-responsive RhoA activation.

Multiomic brain tissue analysis identified sex-specific molecular changes in Amyotrophic lateral sclerosis (ALS), revealing subgroups within the disease and pointing to the MAPK pathway as an early disease mechanism and potential therapeutic target.

Acute myeloid leukemia (AML) arise from mutations of stem and progenitor cells. Here, authors identify a quiescent, label-retaining cell population in AML patient specimens that have tumor-initiation capacity and unique epigenetic and transcriptional properties that can be functionally altered by expression of transcription factors such as JUN.

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.

Ryan et al. report a highly conserved mechanism by which arginine induces changes in hypervirulent Klebsiella pneumoniae bacterial cell surface capsule. K. pneumoniae arginine sensing is critical for full virulence potential.

Minogue et al. show that glutarate, a metabolite derived from tryptophan catabolism, has the ability to shape anti-tumour T cell responses by modulating pyruvate handling and alpha-ketoglutarate-dependent dioxygenases.

Khan et al. report a non-catalytic function of the methyltransferase SETD2 in regulating nuclear morphology and genome integrity. The SETD2 amino terminus functions as a scaffold helping CDK1 associate with lamins during nuclear-envelope disassembly

Here the authors provide an explanation for 95% of examined predicted loss of function variants found in disease-associated haploinsufficient genes in the Genome Aggregation Database (gnomAD), underscoring the power of the presented analysis to minimize false assignments of disease risk.

Polymers are promising for mRNA delivery, but can have limited efficacy in hard to transfect cells. Here, the authors report charge-altering releasable transporters for improved mRNA transfection in primary T-lymphocytes and enhanced and selective protein expression in vivo.

Pathogenic variants in UNC13A underlie a novel neurodevelopmental syndrome, with three subtypes defined by distinct genotypes with varying clinical and functional impacts characterized in cellular and animal models.

A trans-ancestry meta-analysis of GWAS of glycemic traits in up to 281,416 individuals identifies 99 novel loci, of which one quarter was found due to the multi-ancestry approach, which also improves fine-mapping of credible variant sets.

STIM1 is a calcium sensor that is essential for functional lymphocyte responses. Gwack and colleagues demonstrate a calcium-independent role for STIM1 in macrophages that regulates their production of type I interferons.

Increasing age and disease progression negatively impact remyelination in Multiple Sclerosis. Here authors show that genetically edited human oligodendrocyte precursor cells may help overcome remyelination inhibitors and improve remyelination after transplantation into mouse brain.

STAARpipeline is a comprehensive framework for flexible and scalable rare-variant association analysis using whole-genome sequencing data and annotation information.

Spontaneous population activity bursts promote the development of brain circuits. This study shows that single GABAergic hub neurons exert a strong influence on spontaneous and sensory-evoked population bursts in the mouse barrel cortex.

PCSK9 regulates low density lipoprotein-cholesterol import and determines organ preference of metastatic pancreatic ductal adenocarcinoma, with PCSK9-low cells metastasizing to the liver and PCSK9-high cells preferring the lung.

NOTCH3 signalling is shown to be the underlying driver of the differentiation and expansion of a subset of synovial fibroblasts implicated in the pathogenesis of rheumatoid arthritis.

The regulation of the E2F pathway remains incompletely established. Here the authors find that the O-GlcNAcylated FOXK1 associates with the deubiquitinase BAP1 to upregulate transcription of E2F target genes and promote cancer progression.

Rodeheffer and colleagues show that a high-fat diet in mice activates Akt2 signalling in adipocyte precursors within white adipose tissue deposits, leading to their proliferation and differentiation into adipocytes, and to obesity.

Single-cell multi-omics in Drosophila testis reveals enhancer-driven gene regulatory networks and shows how Wnt signaling and key transcription factors orchestrate stem cell maintenance and lineage progression during early spermatogenesis.

The authors show human embryo lineage specification in the blastocyst is driven by differential FGF/ERK signaling, which segregates yolk sac-fated hypoblast and embryonic epiblast. They establish naïve embryonic stem cells based on these insights.

Here the authors connect inherited Apolipoprotein E genotype with the risk of developing Alzheimer’s disease by demonstrating how, in an isoform- and lipidation-specific way, apoE modulates the aggregation, clearance and toxicity of Amyloid-beta.

Here they show that HDAC6 inhibition regulates fumarate hydratase (FH), disrupts mitochondria, increases fumarate, and causes cancer cell death. This suggests that HDAC6 inhibition could be a strategy to target tumour metabolism indirectly.

Prohibitin 2 can localize to the axon-Schwann-cell interface and is required for myelin formation. Here, the authors show that deletion of prohibitin 1 in Schwann cells instead triggers severe myelin loss likely caused by mitochondrial dysfunction, and not rescued by inhibition of the ensuing integrated stress response.

An investigation using various methods reports an association between adeno-associated virus 2 and paediatric hepatitis of unknown aetiology.

A mycovirus infecting the pathogenic fungus Aspergillus fumigatus enhances its stress tolerance and virulence in mice.

Mechanical confinement of cancer cells at the tumour–microenvironment interface induces phenotype switching through chromatin remodelling by HMGB2, leading to a more invasive and drug-resistant state in melanoma.

Mutations in mitochondrial genes cause untreatable diseases such as Leigh syndrome (LS). Here, authors show that cannabidiol (CBD) administration can extend lifespan and improves pathology in LS mouse models, mediated by PPARγ.