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Most H₂ used in the chemical industry is derived from fossil fuels. Now it has been shown that coupling native microbial H₂ pathways with engineered alkene biosynthesis and membrane-bound Pd catalysis enables biocompatible hydrogenation of metabolic intermediates in living bacteria. This hybrid chemo-microbial platform supports the carbon-negative synthesis of industrial chemicals from waste-derived feedstocks.

Hepatitis C virus remains a health burden due to the lack of an effective vaccine, hindered by difficulties in replicating the native E1E2 antigen structure. Here, the authors engineer a stabilized E1E2 heterodimer using cryo-EM-guided modifications, enhancing immunogenicity and paving the way for future HCV vaccine development.

‘Populations residing near nuclear power plants may experience low-level chronic exposure to ionizing radiation through environmental release pathways. In here the authors find higher cancer mortality rates in U.S. counties closer to operational nuclear power plants, with the strongest relative risks observed in older adults.’

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.

T cell activation requires major metabolic adaptation. Here authors find that in mice and humans, expression of the NAD/H-synthesis enzyme nicotinamide riboside kinase 1 (NRK1) increases in CD4+ T cells upon activation, particularly within the cytoplasm, which impacts NADP/H and reactive oxygen species signalling, restraining activation and cytokine production while promoting CD4 + T cell survival during viral and fungal infections.

Here, the authors show that 2’-O-methylated RNA fragments from ribosomal RNA naturally block TLR7 and TLR8, helping to avoid avoid harmful self-RNA detection and autoimmunity.

Brief ultrasound to human frontal eye fields, but not motor cortex, rapidly biases eye movement contralaterally in a perceptual choice task. The size of this effect scales with individual baseline FEF inhibitory tone.

The authors present a genetically encoded tool based on a bifunctional enzyme that can regenerate NAD⁺ while executing an engineered glycerol shunt. The tool successfully restored redox imbalance and modulated lipid metabolism in vitro and in a mouse hepatic steatosis model.

Most patients with B-cell leukemia respond to chimeric antigen receptor T cell (CAR T) therapy, yet many relapse due to loss of CAR T function. Here, the authors show that the metabolism of CAR T from short- and long-term responders is different, which may explain why CAR T lose functionality.

A technique called condense-seq has been developed to measure nucleosome condensability and used to show that mononucleosomes contain sufficient information to condense into large-scale compartments without requiring any external factors.

Spectroscopic observations of the ultra-hot Jupiter WASP-189b reveal both volatile (H₂O, CO, OH) and refractory (Fe, Mg, Si) gas in its atmosphere. Here, the authors show that the abundance ratio of refractory species reflects that of the host star.

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.

Viral ribonucleoprotein–viral protein networks form pre-replication centres that nucleate viral factories and drive respiratory syncytial virus replication.

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.

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.

Here the authors identify nicotine-derived inhibitors of the SARS-CoV−2 main protease that outperform Paxlovid in cells and mice, remain effective against resistant variants, and show broad activity against multiple human coronaviruses.

DNA recognition and cleavage control in type II topoisomerases are poorly understood processes. Here, the authors determine cleaved and uncleaved structures of supercoiled DNA-bound topoisomerase VI that reveal how the enzyme activates its cleavage state and prefers to act at deformable substrates.

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.

Native top-down proteomics reveals epidermal growth factor receptor–estrogen receptor-alpha (EGFR–ER) signaling crosstalk in breast cancer cells and dissociation of nuclear transport factor 2 (NUTF2) dimers to modulate ER signaling and cell growth.

Visible-light-mediated intramolecular [2+2] cycloaddition of aza-1,6-dienes gives bridged, not fused, heterocycles, in violation of the ‘rule-of-five’, which dictates that five-membered rings are preferentially formed. This method allows a variety of bridged bicyclic scaffolds to be accessed, enabling drug-relevant properties to be readily tuned.

Precise and efficient CRISPR genome editing requires specialized delivery systems. Here, the authors develop Coomassie lipidoids that deliver purified adenine base editors into retinal tissues, making it possible to achieve robust genome editing with a defined, non-viral nanomedicine.

Post-transcriptional regulation of mRNA translation was explored using Ribo-STAMP and single-cell RNA sequencing to reveal cell-type-specific and isoform-specific translation patterns across hippocampal neuronal and non-neuronal cell types, highlighting functional differences between CA1 and CA3.

Hepatic glycogenolysis is essential for protein glycosylation and rhythmic secretion by the liver. Disruptions to hepatic glycogenolysis, caused by congenital diseases or physiological factors such as obesity, caloric restriction and changes to meal timing, alter hepatic protein secretion.

The transformations for aragonite precursors in coral are not fully understood but have implications in bio, biogenic and geological mineralization. Here, the authors use high-resolution mapping and observe exponential decay from the edge of four precursors to coral aragonite skeleton in Stylophora pistillata.

Donahue et al. show that ageing is associated with changes in ER morphology. ER-phagy drives age-associated ER remodelling through tissue-specific factors.

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.

Here researchers reveal a microexon in the Ank3 gene encoding Ankyrin G allows cortical interneurons to fine-tune calcium signaling and firing, revealing the contribution of alternative splicing to the functional diversity among different types of neurons.

A measurement strategy is described that is able to read out the parity of minimal two-site Kitaev chains in real time, by coupling two Majoranas and resolving their quantum capacitance.

Supersolid phases are quantum-entangled states of matter exhibiting the dual characteristics of superfluidity and solidity. Here, the authors map the phase diagram of K₂Co(SeO₃)₂. and identify signatures of two supersolid phases separated by a 1/3 magnetization plateau.

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.

The authors find that distinct radial glia subtypes generate and support midbrain dopaminergic neurons, revealing specialized function and lineage relationships among the diverse cell types that shape dopamine neuron development.

Immunopeptidomics identify CD4⁺ T cell epitopes from the conserved bacterial Hup protein that confer protection against multiple bacterial infections in mice suggesting potential for development of broader-spectrum vaccines against staphylococci and streptococci.

Phototrophic bacteria could be used for chemical manufacturing from various carbon sources. This Review discusses the pathways, engineering and potential application of solar chemical biosynthesis.

Here, the authors show that myoferlin is a crucial host factor that helps move viral genetic cargo to the cell surface, boosting influenza, RSV and Sendai virus spread, highlighting a common weak spot for future antivirals.

2D covalent organic frameworks usually possess a polycrystalline nature as well as lower porosity and surface area than 3D counterparts, limiting their gas storage application. Here, the authors report the formation of single-crystal 2D covalent organic frameworks isomers with atom-resolution structures for methane storage.

Neurotrophic factor Nerve Growth Factor (NGF) is involved in bladder physiopathology. Here the authors report that mast-cell derived NGF sustains the pro-tumoral functions of ILC2s in bladder cancer (BC), showing that selective targeting of the NGF receptor TrkA improves survival and response to immune checkpoint blockade in BC models.

In a study of four brain-dead human decedents, extracorporeal liver cross-circulation using genetically modified pig livers provides essential hepatic functions, supporting the feasibility of this approach for temporary liver support as a bridge to organ transplantation.

Conventional type 1 dendritic cells (cDC1) can boost the precursor exhausted T cell population thought to be essential for efficacy of immune checkpoint therapy. Here the authors enhance this cellular network using Flt3L to expand cDC1s and then map the movement of T cells and DCs between tumors and lymph nodes.

Nuclear protein homeostasis relies on proteasome import into the nucleus. Here the authors identify how assembled human proteasomes are transported across the nuclear pore complex and reveal a mechanism enabling the large complex to bypass pore size limitations.

Most studies assessing food self-sufficiency look at calories and neglect nutrient gaps. Comparing food demand and potential food production under land and water constraints, this study quantifies 9 key nutrient gaps for each of African’s 54 countries.

The relocalization of the vacuolar calcium pump Cdt1 to the plasma membrane contributes to fluconazole adaptation in Candida auris.

DNA methylation heterogeneity and dynamics hinder distinguishing early pathological changes from normal variation. Here, the authors identify stable sites whose disruption is linked to blood cancers, aging, and cardiovascular risk.

Gestational exposure of mice to the obesogen tributyltin alters 3-D chromatin interactions in primordial germ cells leading to stable reduction of hepatic Ide expression and predisposing male descendants to insulin dysregulation and obesity.

Studies in zebra finches show that dopamine has a key role as a reinforcement signal in the trial-and-error process of learning that underlies complex natural behaviours.

Conventional slurry electrodes limit high-energy lithium batteries. This work shows that dry-processed electrodes with molecularly coupled carbon–binder networks enable high mass and active material loading, supporting stable high-voltage operation and enhancing battery energy density.

Therapy to allergy often targets a specific allergen without addressing cross-reactivity. Here the authors develop a consensus, cross-reactive allergen, use mRNA-lipid nanoparticle immunization to induce specific, neutralizing IgG responses, but find no therapeutic effects in mouse allergy models, hinting the need for further optimization prior to translation.

The APOE-ε4 allele is the strongest genetic risk factor for late-onset Alzheimer’s disease, but it is not deterministic. Here, the authors show that common genetic variation changes how APOE-ε4 influences cognition.