Search

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.

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.

Whether the adult testis harbours a somatic progenitor population is unknown. Here, the authors provide evidence that the testis interstitial cells expressing the transcription factor Tcf21 maintain adult testis homeostasis during aging, and act as potential reserve somatic progenitors following injury.

Chronic care manages long-term, progressive conditions, while acute care handles short-term ones. Here, authors show chronic conditions account for most of the global health burden, with 68% of DALYs and 93% of YLDs attributed to chronic care needs.

In this study, Weber et al., investigate the long-term survival and integration of human stem cell-derived neural progenitors into the stroke-injured mouse brains. They report grafted cells integrate into host circuits and mediate repair through graft-host crosstalk via neurexin, neuregulin, neural cell adhesion molecules, and SLIT signalling pathways.

The quark structure of the f₀(980) hadron is still unknown after 50 years of its discovery. Here, the CMS Collaboration reports a measurement of the elliptic flow of the f₀(980) state in proton-lead collisions at a nucleon-nucleon centre-of-mass energy of 8.16 TeV, providing strong evidence that the state is an ordinary meson.

A lipid nanoparticle is used to deliver mRNA to hematopoietic stem cells in macaques.

A Telluride Science Workshop on electrochemical separations was convened in early 2025. In this Feature, 17 of the workshop participants share their perspectives and future outlooks on this rapidly growing research area.

In this Perspective, members of the Aging Biomarker Consortium outline the X-Age Project, an Aging Biomarker Consortium plan for building standardized aging clocks in China. The authors discuss the project roadmap and its aims of decoding aging heterogeneity, detecting accelerated aging early and evaluating geroprotective interventions.

Toghani, Gupte et al. identify semaphorin 4A as a cell-extrinsic factor that protects myeloid-biased hematopoietic stem cells from inflammaging, mainly produced by their progeny—neutrophils—and acting via a negative feedback loop.

Finite momentum superconducting pairing refers to a class of unconventional superconducting states where Cooper pairs acquire a non-zero momentum. Here the authors report a new superconducting state in bulk 4Hb-TaS₂, where magnetic fields induce finite momentum pairing via magnetoelectric coupling.

Artificial intelligence-based detection of gastric cancer at different stages from noncontrast computed tomography is suggested to be feasible in a retrospective analysis of large and diverse cohorts, including real-world populations in opportunistic and targeted screening scenarios.

Genetically encoded voltage indicators (GEVIs) enable fast tracking of membrane voltage in live neurons. Here, the authors use soma-targeted ASAP4.4-Kv to visualize electrical activity in sensory ganglia, revealing synchronization and altered coding after injury.

Itkin et al. identify a role for Fli-1 in hematopoietic stem cell activation during regenerative hematopoiesis. They show that Fli-1 coordinates hematopoietic stem cells to stimulate niche-derived Notch1 feedback signals for demand-needed hematopoietic cell output.

Using voltage imaging, the authors show that interneurons in the hippocampus sharpen memory-encoding-activity by increasing the signal-to-noise ratio of pyramidal neuron sensory representations during working memory in mice.

The transcription factor CREM is a pivotal regulator of NK cell function, making CREM a valuable target to increase the efficacy of anticancer immunotherapies based on this cell population and chimeric antigen receptors.

A clinical study of women with abnormal breast mammograms establishes a workflow to evaluate the capability of breast photoacoustic computed tomography in the classification, monitoring and segmentation of lesions.

Together with an accompanying paper presenting a transcriptomic atlas of the mouse lemur, interrogation of the atlas provides a rich body of data to support the use of the organism as a model for primate biology and health.

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

Here, the authors show that van der Waals isotopic heterostructures based on few-layer h¹⁰BN and h¹¹BN can be tuned to modulate the energy-momentum dispersions of hyperbolic phonon polaritons, offering an alternative approach to engineer the nanophotonic properties of 2D materials.

Haematopoietic stem cells (HSCs) are very sensitive to energetic and oxidative stress, and modulation of the balance between their quiescence and proliferation is needed to respond to metabolic stress while preserving HSCs' long term regenerative capacity. Here the tumour suppressor Lkb1 is shown to have a crucial role in maintaining energy homeostasis in haematopoietic cells — an effect largely independent of AMPK and mTOR signalling.

The LHCb experiment at CERN has observed significant asymmetries between the decay rates of the beauty baryon and its CP-conjugated antibaryon, thus demonstrating CP violation in baryon decays.

Centrioles organize chromosome segregation, migration, and the immune synapse. Here, Schapfl et al. show that B cell progenitors tolerate centriole overamplification, but not loss, while mature B cells can mount a humoral immune response in their absence.

Together with a companion paper, the generation of a transcriptomic atlas for the mouse lemur and analyses of example cell types establish this animal as a molecularly tractable primate model organism.

Ageing is associated with clonal hematopoiesis of indeterminate potential (CHIP), which is linked to increased risks of hematological malignancies. Here the authors uncover an epigenetic mechanism through which mutant p53 drives clonal hematopoiesis through interaction with EZH2.

Parametric phase-locked oscillators were first developed in the 1950s as a way of electrically storing and controlling information. Lin et al.now show that a modern version of this concept using superconducting circuits enables high-fidelity, single-shot and non-destructive measurement of a qubit.

The realization of high-performance flexible perovskite/crystalline-silicon tandem solar cells requires efficient photocarrier transport and mitigation of residual stress. Here, authors reveal the critical role of perovskite phase homogeneity, achieving flexible devices with efficiency of 29.88%.

Dnmt3a mutations in mouse haematopoietic stem and progenitor cells equivalent to R882 mutations in human cause increased mitochondrial respiration, suggesting that this is a mechanism of clonal haematopoiesis and a potential therapeutic target.

The use of biomarkers of ageing is crucial for investigating age-related processes. This Review discusses biomarkers of ageing and of ageing-associated physiological changes, at the cellular, tissue and organism levels in humans and non-human primates.

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.

Oh and colleagues demonstrate that the DUSP6–RSK1 axis is involved in the transformation of myeloproliferative neoplasms to secondary acute myeloid leukemia and that DUSP6 mediates the response to JAK2 inhibition.

The proton shuttle plays a critical role in the proton transfer process during lithium-mediated ammonia synthesis. Here, the authors establish the structure-activity relationship and design principles for effective proton shuttles.

The ATLAS Collaboration reports the observation of the electroweak production of two jets and a Z-boson pair. This process is related to vector-boson scattering and allows the nature of electroweak symmetry breaking to be probed.

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.

Hyperbolic polaritons provide unprecedented control over light-matter interaction at extreme nanoscales. Here, the authors propose type-I hyperbolic metasurfaces supporting highly-squeezed magnetic designer polaritons with negative group velocity, which are magnetic analogs of hyperbolic polaritons in hexagonal boron nitride.

Genome-wide analyses in over one million self-reported cases and controls identify genetic variants associated with stuttering and find genetic correlations with autism, depression and impaired musical rhythm, supporting a potential neurological basis for stuttering.

Using multi-ancestry genome-wide association study and fine-mapping, 298 loci and 36 credible genes are identified in the aetiology of bipolar disorder.

Knock-in mice conditionally or constitutively expressing Cas12 variants enable a wide range of ex vivo and in vivo applications requiring multiplexed genome engineering.

Wastewater treatment plants are important reservoirs of antibiotic resistance genes (ARGs). Here, the authors analyze ARGs in a global collection of samples from wastewater treatment plants across six continents, providing insights into biotic and abiotic mechanisms that appear to control ARG diversity and distribution.

Dick and colleagues identify human LT-HSC subsets with distinct quiescent states. They link these differences to INKA1-mediated downregulation of the transmembrane protein CD112 and its interaction with the protein deacetylase SIRT1. INKA1 is inversely correlated with the histone H4K16Ac mark, which then distinguishes ‘latent’ CD112^lo LT-HSCs from CD112^hi LT-HSCs that are more readily activated in response to hematopoietic stress.

A parallel experimental and computational approach was used to predict and prepare intercalated, layered hybrid perovskites, highlighting the breadth and flexibility of intercalation.

The CMS Collaboration reports evidence for off-shell Higgs boson contributions in the production of Z boson pairs, and measures the width of the Higgs boson, which is inversely related to its lifetime.

Genetically-encoded indicators with more red-shifted excitation and emission wavelengths are advantageous for in vivo imaging. Here, Dalangin et al. report the engineering of far-red fluorescent Ca2+ indicators and demonstrate their utility for monitoring of all-optical cardiac pacing in embryonic zebrafish.

MRI data from more than 100 studies have been aggregated to yield new insights about brain development and ageing, and create an interactive open resource for comparison of brain structures throughout the human lifespan, including those associated with neurological and psychiatric disorders.