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A new artificial intelligence model, DeepSeek-R1, is introduced, demonstrating that the reasoning abilities of large language models can be incentivized through pure reinforcement learning, removing the need for human-annotated demonstrations.

Engineering a mutant-specific customized base editor precisely corrects a mutation while minimizing bystander edits, leading to substantial phenotypic recovery in mouse models of multisystemic smooth muscle dysfunction syndrome.

Membrane technology using well-defined pore structure enables high ion purity and recovery but achieving uniform pore structure and effective pore area is challenging. Here the authors introduce dendrimers that self-assemble, facilitating the formation of polyamide nanofilms with well-defined effective pore ranges and uniform pore structures.

New agonists of the serotonin 5-HT_2A receptor (5-HT_2AR) confer high brain permeability and antidepressant activity and—in contrast to classic 5-HT_2AR agonists—lack psychedelic activity.

Delivering functional proteins or protein complexes into cells continues to be a significant challenge. Here, the authors develop efficient systems by using engineered extracellular vesicles to deliver functional cargoes, including CRISPR/Cas9-ribonucleoproteins, both in vitro and in vivo.

The authors present SVclone, a computational method for inferring the cancer cell fraction of structural variants from whole-genome sequencing data.

Cryo-electron microscopy and molecular dynamics simulations reveal how MFSD2A transports essential omega-3 fatty acids across the blood–brain and blood–retina barriers as lysolipids.

The ALICE Collaboration provides details on the microscopic mechanism that ends up creating antideuteron in high-energy proton–proton collisions at the Large Hadron Collider.

Obtaining highly efficient thermoelectric materials relies on a high ZT, and on this value being consistently high over a wide temperature range. Here, the authors demonstrate a phase-separated PbTe-based material that exhibits a ZT of >2 from 673 to 923 K, and a resultantly high average ZT of 1.56 between 300 and 900 K.

There’s an emerging body of evidence to show how biological sex impacts cancer incidence, treatment and underlying biology. Here, using a large pan-cancer dataset, the authors further highlight how sex differences shape the cancer genome.

Combining structural, biochemical, cellular and in vivo assays, the authors uncover the mechanism for capture and multisite phosphorylation of lethal (2) giant larvae by the atypical protein kinase C and partitioning-defective protein 6, revealing the basis for their mutual antagonism underpinning cell polarity.

Analysis of cancer genome sequencing data has enabled the discovery of driver mutations. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium the authors present DriverPower, a software package that identifies coding and non-coding driver mutations within cancer whole genomes via consideration of mutational burden and functional impact evidence.

Multi-omics datasets pose major challenges to data interpretation and hypothesis generation owing to their high-dimensional molecular profiles. Here, the authors develop ActivePathways method, which uses data fusion techniques for integrative pathway analysis of multi-omics data and candidate gene discovery.

A semiconductor chip, coupled to an ion-sensitive field effect transistor (ISFET) pH sensor, can amplify and quantitate DNA in real time without dyes, cameras and external heating devices.

The growth of wafer-scale single-crystalline 2D semiconductors on sapphire is important for their electronic applications, but the underlying mechanisms are not yet fully understood. Here, the authors study the influence of air-induced sapphire surface hydrolysis on the growth process of 2D WS₂ and propose an ultraviolet light healing method to repair the degraded substrates.

Notch signaling is known to control neuroendocrine fate in the lungs. Shue and colleagues further identify the REST and YAP transcriptional regulators as key components of the Notch signaling pathway in the control of the neuroendocrine cell fate in lung development, lung injury response, and small-cell lung cancer.

Analyses of 2,658 whole genomes across 38 types of cancer identify the contribution of non-coding point mutations and structural variants to driving cancer.

While Bell inequalities have been violated several times—mostly in photonic systems—their violations within particle physics experiments are less explored. Here, the BESIII Collaboration showcases Bell-violating nonlocal correlations between entangled hyperon pairs.

Integrative analyses of transcriptome and whole-genome sequencing data for 1,188 tumours across 27 types of cancer are used to provide a comprehensive catalogue of RNA-level alterations in cancer.

The semileptonic decay channels of the Λc baryon can give important insights into weak interaction, but decay into a neutron, positron and electron neutrino has not been reported so far, due to difficulties in the final products’ identification. Here, the BESIII Collaboration reports its observation in e+e- collision data, exploiting machine-learning-based identification techniques.

THOC2 is an essential subunit of Transcription mRNA Export complex of eukaryotic cells and its compromise causes adverse (neuro)development. Using mouse model and patient cells the authors unravel molecular pathology of the syndrome, from R-loops dysregulation, to altered transcriptome and DNA damage triggered cell death.

Itskanov and Wang et al. determined high-resolution structures of the human Sec61 channel inhibited by several structurally distinct small molecules and revealed the common inhibitor-binding site in Sec61 and molecular interactions in atomic detail.

In somatic cells the mechanisms maintaining the chromosome ends are normally inactivated; however, cancer cells can re-activate these pathways to support continuous growth. Here, the authors characterize the telomeric landscapes across tumour types and identify genomic alterations associated with different telomere maintenance mechanisms.

Observations of γ-rays with energies up to 1.4 PeV find that 12 sources in the Galaxy are PeVatrons, one of which is the Crab Nebula.

Investigating the inner structure of baryons is important to further our understanding of the strong interaction. Here, the BESIII Collaboration extracts the absolute value of the ratio of the electric to magnetic form factors and its relative phase for e + e − → J/ψ → ΛΣ decays, enhancing the signal thanks to the vacuum polarisation effect at the J/ψ peak.

Factors that determine the cellular tropism of SARS-CoV-2 beyond the host cell receptor, ACE2, are poorly defined. Here, the authors show that tonic activation of the cGAS-STING sensing pathway potently blocks SARS-CoV-2 replication in a subset of ACE2-expressing airway-derived cells.

Whole-genome sequencing data for 2,778 cancer samples from 2,658 unique donors across 38 cancer types is used to reconstruct the evolutionary history of cancer, revealing that driver mutations can precede diagnosis by several years to decades.

Mito-SEPs are small peptides that can modulate oxidative metabolism in mitochondria. Here the authors show that C15ORF48 encodes a mito-SEP, MOCCI, capable of altering mitochondria respiration to suppress inflammation, while C15ORF48 3’ untranslated region also contains a miRNA, miR-147b, that synergizes with MOCCI to modulate host anti-viral responses.

Many diseases are driven by the insufficient expression of critical genes, but few technologies are capable of rescuing these endogenous protein levels. Here, Cao et al. present an RNA-based technology that boosts protein production from endogenous mRNAs by upregulating their translation.

An analysis of 2,954 genomes from 38 cancer subtypes identified 19,166 retrotransposition events in 35% of samples. Aberrant LINE-1 retrotranspositions can lead to the deletion of tumor-suppressor genes as well as the amplification of oncogenes.

Roy et al. describe a generalized method for computationally designing miniproteins selective for a single integrin heterodimer and conformational state. The designed αvβ6 inhibitor remains monomeric and maintains biological activity following aerosolization and shows excellent efficacy in bleomycin induced lung fibrosis.

The mechanism of the charge density wave transition in quasi one-dimensional blue bronzes is still debated. Here, the authors report evidence of a Luttinger liquid in the normal state of blue bronzes and Holstein polarons below the transition temperature, revealing the important role of electron-phonon coupling in the transition.

Polarization observations of the fast radio burst FRB 180301 with the FAST radio telescope show diverse polarization angle swings, consistent with a magnetospheric origin of the emission.

Pathogenic germline variants in TP53 predispose to a variety of cancers, but variants solely affecting alternatively spliced isoforms of TP53 are understudied. Here, the authors identify a heterozygous stop-lost variant that specifically affects p53β isoforms and predisposes to familial cancer using germline whole-exome sequencing and functional genomics assays.

Measurements of the inelastic cross section of anti-³He allow the estimation of the transparency of the Milky Way to the propagation of these light antinuclei produced in either cosmic-ray collisions or annihilation of dark-matter particles.

Disease-associated mutations in the protein TECPR2 have so far been mainly studied with respect to autophagy. Using complementary proteomics approaches, the authors identify trafficking and sorting defects along the secretory pathway upon TECPR2 deficiency and provide evidence that TECPR2 associates with the ER-Golgi interface.

Cancers evolve as they progress under differing selective pressures. Here, as part of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium, the authors present the method TrackSig the estimates evolutionary trajectories of somatic mutational processes from single bulk tumour data.

Topological superconductors are potentially important for future quantum computation, but they are very rare in nature. Here, the authors observe topological surface states acquiring a nodeless superconducting gap with similar magnitude as that of the bulk states in 2M-WS₂, suggesting an intrinsic topological superconductor.

The flagship paper of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes Consortium describes the generation of the integrative analyses of 2,658 cancer whole genomes and their matching normal tissues across 38 tumour types, the structures for international data sharing and standardized analyses, and the main scientific findings from across the consortium studies.

Current genetic modification methods require regeneration using tissue culture. This study now reports a type of transformation technology, pollen magnetofection, that allows production of transgenic seeds in multiple species in a fast, culture-free manner.

The characterization of 4,645 whole-genome and 19,184 exome sequences, covering most types of cancer, identifies 81 single-base substitution, doublet-base substitution and small-insertion-and-deletion mutational signatures, providing a systematic overview of the mutational processes that contribute to cancer development.

With the generation of large pan-cancer whole-exome and whole-genome sequencing projects, a question remains about how comparable these datasets are. Here, using The Cancer Genome Atlas samples analysed as part of the Pan-Cancer Analysis of Whole Genomes project, the authors explore the concordance of mutations called by whole exome sequencing and whole genome sequencing techniques.

Subtypes of cancer associated fibroblasts can both promote and suppress tumorigenesis. Here, the authors investigate how p53 status in pancreatic cancer cells affects their interaction with cancer associated fibroblasts, and report perlecan as a mediator of the pro-metastatic environment.

Whole-genome sequencing data from more than 2,500 cancers of 38 tumour types reveal 16 signatures that can be used to classify somatic structural variants, highlighting the diversity of genomic rearrangements in cancer.

Understanding deregulation of biological pathways in cancer can provide insight into disease etiology and potential therapies. Here, as part of the PanCancer Analysis of Whole Genomes (PCAWG) consortium, the authors present pathway and network analysis of 2583 whole cancer genomes from 27 tumour types.

A pan-cancer genomic analysis reports the effects of structural variations on chromatin domains (TADs). Most TAD disruptions do not result in appreciable changes in expression of nearby genes.

Many tumours exhibit hypoxia (low oxygen) and hypoxic tumours often respond poorly to therapy. Here, the authors quantify hypoxia in 1188 tumours from 27 cancer types, showing elevated hypoxia links to increased mutational load, directing evolutionary trajectories.