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Diamond anvils are widely used in high-pressure research to investigate matter under extreme conditions. Here, broadband spectroscopy is used to measure pressure-driven opacity of diamond anvils to 520 GPa, revealing bandgap narrowing and optical behavior that redefines the limits of high-pressure spectroscopy.

MASH is driven by the secreted GPNMB ectodomain, which binds hepatocyte RYK to activate ERK1/2 and promote lipid uptake and lipogenic programs; blocking the GPNMB–RYK axis prevented and treated MASH in preclinical models.

Mangrove ecosystems are facing severe climate threats. However, this study shows that strategically expanding protected areas to include the most climate-resilient sites can safeguard biodiversity and ecosystem services for the future, and this can be achieved with only a modest increase in protected area.

Tiny protein crystals often evade X-ray methods. Here, authors solved the seed protein crambin at 0.85 Å by ab initio MicroED from 58 self-formed nanocrystals on standard 200 kV hardware, resolving hydrogen atoms using anisotropy-aware merging.

The burden of dengue disease in infants has increased in Brazil over the last 25 years. Here, the authors analyse spatiotemporal heterogeneity in disease incidence to characterise the contribution of changing maternal immunity to infant dengue risk.

Mucosal administration of a multivalent, adjuvanted vaccine against Clostridioides difficile promoted bacterial clearance and protected against morbidity, mortality, tissue damage and recurrence in mice.

A 3D soft electronic mesh allows high-resolution electrical recording and stimulation across the full surface of neural organoids, enabling long-term studies, drug testing and optogenetic control without compromising their viability owing to its porous design.

Mouse models show that lymphoedema caused by impaired lymphatic drainage is ameliorated by removal of cholesterol deposits, which promotes the regeneration of lymphatic vessels.

This study shows how the bacterial retron Eco2 defends against viruses. Phage nucleases trigger activation of Eco2, which cuts RNAs, shuts down protein production and stops phage replication.

Achieving toroidal magnetic moments in molecular systems is challenging. Now homochiral toroidal magnetic ground states have been realized in propeller-shaped chiral Dy(III)-based single-molecule toroics, enabling toroidal spin states to be detected through magneto-chiral dichroism.

Amundsen Sea records show warm Circumpolar Deep Water drove major West Antarctic Ice Sheet retreat from 18,000–10,000 years ago. Subsequent cooling stabilized the grounding line, indicating ocean heat—not atmospheric warming—controlled long-term WAIS change.

Cytosolic ScURA uncouples de novo pyrimidine synthesis from mitochondrial electron transport, and rescues pyrimidine production and cell proliferation under pharmacological or genetic mETC disruption.

Here the authors compare genetic testing strategies in rare movement disorders, improve diagnostic yield with genome analysis, and establish CD99L2 as an X-linked spastic ataxia gene, showing that CD99L2–CAPN1 signaling disruption likely drives neurodegeneration.

Expression of agouti signalling protein in neurons in the medial preoptic area is increased by group housing and negatively associated with care, and overexpression of Agouti reduces care and enhances infanticide in previously tolerant mice.

Anderson et al. demonstrate that the glucokinase activator AZD1656 reduces inflammation and reverses cardiac dysfunction and metabolic remodeling in mice with diabetic cardiomyopathy.

Many thermophiles that are abundant in geothermal systems have never been cultivated and are poorly understood. Here, Lai et al. describe the cultivation of one such organism, a deeply branching member of the archaeal phylum Thermoproteota, and provide evidence that it has evolved to specialize in branched-chain amino acid metabolism.

Thermogenetics enables spatiotemporal control of protein activity using temperature. Now, engineering of a compact, insertable thermoresponsive protein module diversifies the classes of proteins amenable to allosteric thermoregulation.

Crystalline materials for optical applications are synthesized in living dinoflagellates.

In vitro propagation of the pathogenic bacterium Coxiella burnetii, the causative agent of Q fever, leads to attenuated virulence and lipopolysaccharide (LPS) truncation. Here, Long et al. show that a strain considered to be avirulent (NMII) can be recovered from infected animals, and these isolates display increased virulence and an elongated LPS due to reversion of a 3-bp mutation in a gene.

The authors demonstrate that targeted protein degradation of the dengue virus capsid suppresses infection through capsid-dependent pathways rather than classical inhibition, revealing a new antiviral strategy effective against resistant viral variants.

This study shows that in anxiety, circulating LPA16:0 produced by platelets inhibits adult hippocampal neurogenesis, resulting in increased susceptibility to stress and depression. These results support LPA16:0 as a potential therapeutic target for mood disorders.

Humans alter the daily timing of animal activity, potentially reshaping predator–prey interactions. This meta-analysis reveals that larger species tend to “lose” under human disturbance, with large predators overlapping less with their prey, and large prey overlapping more with their predators.

De novo designed proteins that target the transmembrane domain of G-protein-coupled receptors, created using iterative structural predictions, are able to act as agonist-positive, negative or biased allosteric modulators of downstream activity.

Dai and colleagues implicate defective dendritic cell migration in impaired vaccine responses in aged mice. Oral delivery of yeast-derived nanoparticles promotes migration of dendritic cells from the gut to lymph nodes and restores vaccine efficacy in aged mice.

Neural mechanisms underlying active avoidance are not fully understood. Here authors show that avoidance actions are positively reinforced by learned safety signals. With training, control shifts from goal-directed to habitual behavior via distinct dorsal striatal circuits, like reward-based learning.

MsbA mediates the transport of lipopolysaccharide across the inner membrane. Here, the authors show specific MsbA-lipid interactions can tune the selectivity for binding ATP over ADP and present five structures of MsbA with one bound to lipid.

Proteomic data from natural isolates of Saccharomyces cerevisiae provide insight into how these cells tolerate aneuploidy (an imbalance in the number of chromosomes), and reveal differences between lab-engineered aneuploids and diverse natural yeasts.

Protected areas (PAs) are central to China’s forest conservation strategy, yet their carbon storage effectiveness under different governance and management contexts remains uncertain. Here, authors show that stronger protection enables substantially greater forest carbon gains in China’s PAs, both now and in the future.

The authors realize two- and three-site Kitaev chains in semiconducting quantum dots coupled via superconductors and tune them to the sweet spot where zero-energy Majorana modes appear at the chain ends. To assess Majorana localization, they couple the system to an additional quantum dot.

The electronic behaviour of complex oxides such as LaNiO₃ depends on many intrinsic and extrinsic factors, making it challenging to identify microscopic mechanisms. Here the authors demonstrate the influence of oxygen vacancies on the thickness-dependent metal-insulator transition of LaNiO₃ films.

Here, the authors propose the Antarctic Ecosystem Value Index, an Earth systems model-based measure of marine ecological value. The index identifies potential present and future high-value locations, which often fall within coastal polynyas.

PhytoBabel is an AI model designed to capture the semantic similarity of cis-regulatory sequences across phylogenetically distant plant species, thereby establishing an approach for cross-species knowledge transfer and gene function prediction.

In the context of ongoing A(H5N1) outbreak events, in this study, the authors use a ferret transmission model to show that genotype B3.13 viruses are shed into the air at higher levels than other A(H5N1) strains, highlighting the need for continued surveillance and aerobiological analyses.

Performing pandemic-scale phylogenetic analysis poses multifaceted challenges. This study develops methods for identifying and accounting for mutation rate variation and recurrent sequence errors, leading to an improved global phylogenetic tree of >2 million severe acute respiratory syndrome coronavirus 2 genomes.

Microscopic imaging and biochemical studies show that sinuses in mouse and human form a highly dynamic surface that regulates fluid movement and immune cell surveillance via RAMP1-dependent regulation of smooth muscle contraction and RAMP2-dependent regulation of the sinus endothelial barrier.

Neuroinflammation triggers DNA damage and subsequent parthanatos-mediated neuron death. Inhibiting parthanatos in a mouse model of autoimmune inflammation is neuroprotective and reduces disease-associated paralysis.

KRAS is an oncogene that switches between a GDP-bound inactive state and a GTP-bound active state. Recently developed KRAS G12C inhibitors are specific to the GDP-bound inactive state. Here, the authors develop a class of covalent KRAS G12C inhibitors capable of targeting both states for the treatment of KRAS-driven cancer.

Wang et al. analyzed data from the Detroit Neighborhood Health Study to explore links between social adversity, post-traumatic stress and epigenetic regulation through blood-derived micro-RNA profiles.

Protein citrullination is linked to autoimmunity and inflammation but is challenging to detect globally. Here, the authors report a high-throughput chemical proteomics workflow and demonstrate its utility by quantifying the dynamic citrullinome in human neutrophils.

Transition metal-catalysed carbene reactions facilitate a number of transformations in organic chemistry. Here the authors report iron-catalysed cascade reactions—involving carbene and carbene radical intermediates—of alkyne-tethered diazo compounds for the construction of carbocyclic molecules.

This study shows O₂-producing cyanobacteria likely prospered in silica- and iron-rich ancient oceans prior to the emergence of free O₂. Silica and day-night light cycles helped the microbes to overcome toxicity effects caused by oxygen radicals.

The transcription factor ATF4 and its effector lipocalin 2 (LCN2) have a key role in immune evasion and tumour progression, and targeting the ATF4–LCN2 axis might provide a way to treat several types of solid tumour by increasing anti-cancer immunity.

COVID-19 during pregnancy is still incompletely understood. Here, the authors use a hamster model to show that it causes placental inflammation, impairing fetal growth but without vertical transmission. Vaccination and anticoagulants can prevent such risks, highlighting ways to protect mother and unborn child.

Crohn’s disease is associated with disturbances in the B-cell compartment and secreted antibodies. Here, the authors reveal impaired colonic dimeric IgA responses in patients with Crohn’s disease and verify this phenotype in murine models, demonstrating that mitochondrial dysfunction drives defective mucosal humoral immunity.

mGWAS reveals ZmICE1 as a key hub for integrating amino acid metabolic pathways and cold tolerance in maize. Natural variation in ZmICE1 promoter regulates the binding affinity of ZmMYB39, which confers the diverse cold tolerance in maize.

Therapies combining chemotherapy and immune checkpoint inhibitors have shown limited efficacy in patients with advanced pancreatic ductal adenocarcinoma (PDAC). Here the authors report the results of a pilot phase 1 trial of neoadjuvant modified Folfirinox plus nivolumab in borderline-resectable PDAC, including safety, efficacy and immunological correlates.

Osteoporotic fractures are a major global health burden. Here the authors show, using proteome wide Mendelian randomization, that nine circulating proteins influence forearm fracture risk and identify a novel protective role for ephrin A1

Histological analysis of the human pancreas provides insight into initiation and progression of type 1 diabetes (T1D). Here the authors utilize pancreatic tissue sections across different disease stages and apply whole slide imaging and digital pathology to identify endocrine cell composition, immune cell burden and spatial islet relationships in health and over the course of T1D.

The lowest-frequency gravitational wave background may be shaped by supermassive black hole binaries that scatter nearby stars or dark matter. In this case, the NANOGrav 15-year dataset favours dense galactic centres with 10⁶ solar masses per cubic parsec.

LC retention time prediction of peptides and their modifications is useful but is hindered by variations in experimental parameters. Here, the authors show how fine-tuning a deep learning model on a wide variety of experimental setups and modified peptides substantially improves predictions.