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Humanity’s Last Exam, a multi-modal benchmark at the frontier of human knowledge, is designed to be an expert-level closed-ended academic benchmark with broad subject coverage.

Using human iPSC-derived motor and cortical neurons as well as Drosophila models, the authors have identified a dysregulated Ku80–p53–SIRT1 axis downstream of DNA damage repair as a common pathogenic mechanism in both sporadic ALS and familial FTD.

Detection of hot intracluster gas in SPT2349−56 with the Atacama Large Millimeter/submillimeter Array provides new insights into early cluster formation.

Typical quantum error correcting codes assign fixed roles to the underlying physical qubits. Now the performance benefits of alternative, dynamic error correction schemes have been demonstrated on a superconducting quantum processor.

Tree longevity is thought to increase in harsh environments, but global evidence of drivers is lacking. Here, the authors find two different pathways for tree longevity: slow growth in resource limited environments and increasing tree stature and/or slow growth in competitive environments.

FACED 2.0 builds on and expands the capabilities of the free-space angular-chirp-enhanced delay microscopy approach. Its high speed, large field of view and volumetric coverage enable two-photon voltage imaging of hundreds of neurons or calcium imaging of thousands of neurons in the mouse or zebrafish brain.

The authors theoretically delineate the maximal increases in tree growth that can be expected from increases in plant intrinsic water-use efficiency, which increases with rising CO₂. They highlight environmental and physiological limits on growth in the context of experimental data.

Polyploidy and subsequent post-polyploid diploidization (PPD) contribute to evolutionary success of plant species. Here, using 11 genomes from all nine subfamilies of Malvaceae as an example, the authors provide evidence to support the “polyploidy for survival and PPD for success” hypothesis.

Federated learning (FL) algorithms have emerged as a promising solution to train models for healthcare imaging across institutions while preserving privacy. Here, the authors describe the Federated Tumor Segmentation (FeTS) challenge for the decentralised benchmarking of FL algorithms and evaluation of Healthcare AI algorithm generalizability in real-world cancer imaging datasets.

In this attempt at xenotransplantation of a lung from a genetically modified pig into a brain-dead recipient, although the grafted lung initially maintained viability and functionality, antibody-mediated rejection rapidly occurred, contributing to xenograft damage.

Experimental measurements of high-order out-of-time-order correlators on a superconducting quantum processor show that these correlators remain highly sensitive to the quantum many-body dynamics in quantum computers at long timescales.

Here Jaster et al., show a single psilocybin dose produce sex-specific post-acute changes in opioid reward and withdrawal via 5-HT2A receptors in frontal cortex-to–nucleus accumbens circuits, with epigenetic and synaptic changes shaping therapeutic potential.

The authors find that TDP-43 loss of function—the pathology defining the neurodegenerative conditions ALS and FTD—induces novel mRNA polyadenylation events, which have different effects, including an increase in RNA stability, leading to higher protein levels.

Understanding of the immune microenvironment in pediatric acute T cell lymphoblastic leukemia is limited. By analyzing single-cell transcriptome, surface protein expression and immune repertoire data, the authors here identify non-malignant CD4^-CD8^- TCRαβ T cells that are present in a subset of patients with Rap1 signaling in leukemia cells and are associated with adverse clinical outcome in patients with low minimal residual disease.

Pulmonary large cell neuroendocrine carcinoma is an aggressive subtype of lung cancer. Here, the authors identify distinct subtypes based on genomic alterations and transcriptomic alterations.

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.

Strings of local excitations are interesting features of a strongly correlated topological quantum matter. Here, the authors show that Boltzmann-distributed strings of local excitations also describe the topological physics of the Santa Fe geometry of artificial spin ice, which is a classical thermal system.

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.

Insights into the mechanism of methylthio-alkane reductase (MAR)—a nitrogenase-like enzyme essential for growth under sulfate-limited conditions—have remained scarce. Now a cryo-EM structure of MAR from Rhodospirillum rubrum, along with spectroscopic investigations, reveals how it uses complex metallocofactors for catalysis.

Synthetic routes to aminoglycosides are often long and rely upon the coupling of semisynthetically produced fragments. Now, an enantioselective, copper-catalysed hydroamination of benzene has been developed to enable access to the aminoglycoside antibiotic ribostamycin. This bottom-up strategy provides modular and expedient entry into the aminocyclitol class.

Design of anomeric leaving groups with pendant H-bond acceptors results in a stereospecific chemical O-glycosylation with broad scope and applicability to automated synthesis.

Yang et al. apply high-throughput structure probing approaches to characterize the secondary structure throughout the SARS-CoV-2 WT and VOC genomes, uncovering an ultra-long-range RNA-RNA interaction that directly binds ADAR1 to promote viral fitness.

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.

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.

In this study the authors consider the structural variants (SVs) present within cancer cases of the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium. They report hundreds of genes, including known cancer-associated genes for which the nearby presence of a SV breakpoint is associated with altered expression.

Polycomb repressive complex 2 (PRC2) silences gene expression through trimethylation of K27 of histone H3 (H3K27Me). Here, the authors report the structure of the human PRC2 complex bound to the oncogenic H3K27M mutant, and suggest a mechanism for its potency in childhood brain cancers.

Although the number of participants is important for phenotypic prediction accuracy in brain-wide association studies using functional MRI, scanning for at least 30 min offers the greatest cost effectiveness.

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.

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.

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.

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.

URAT1 is the target for gout drugs that block urate reuptake in the kidneys, however current treatments have limitations. Here, authors show how urate-lowering drugs inhibit URAT1, facilitating antigout drug development.

Olfactory neuroblastoma (ONB) is a rare malignant tumor whose genetic basis is poorly understood. Here the authors identify recurrent deletions involving dystrophin in the majority of ONB patient tumors examined.

Green spaces are known to help cool cities, but they contribute humidity while reducing heat—and both matter. Using smart sensors mounted on bicycles, this study finds that daytime temperature reductions in urban green spaces are largely offset by humidity increases but that urban vegetation causes a net reduction in humid heat at night.

Using RFdiffusion, a general method for targeting intrinsically disordered proteins and regions for protein design has been developed.

The approval of first line immune checkpoint blockade (ICB) has improved outcomes for patients with metastatic non-small cell lung cancer (mNSCLC), however, whether patients would benefit more from ICB alone or alongside chemotherapy is unclear. Here, the authors develop a machine-learning based approach to help guide individual treatment selection patients with mNSCLC.

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.

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.

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.

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.

Viral pathogen load in cancer genomes is estimated through analysis of sequencing data from 2,656 tumors across 35 cancer types using multiple pathogen-detection pipelines, identifying viruses in 382 genomic and 68 transcriptome datasets.

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.

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.