🧬 biology

Where in the spectrum does biology live? A confound audit and a compaction law for gene embeddings of single-cell foundation models

This paper reveals that the leading spectral axes of single-cell foundation models are predominantly confounded by gene expression abundance rather than biological meaning, demonstrating that removing these axes improves retrieval performance and establishing a model-dependent compaction law that guides optimal dimensionality reduction for biological tasks.

Liu Chen2026-08-06
🧬 biology

Does AI-predicted biochemical age predict death? A cross-validated re-examination in NHANES 1999–2018 with linked mortality follow-up

This study demonstrates that while complex machine learning models can more accurately predict chronological age from blood chemistry, their resulting "age acceleration" metrics are less effective at predicting mortality than simpler models or biomarkers directly trained on death outcomes, revealing that the training target rather than the model complexity or biomarkers is the critical factor in developing useful biological age predictors.

John Feng2026-08-06
🧬 biology

Spatial GNN Analyzer: An AI-Powered Graph Neural Network Framework for Spatial Transcriptomics Domain Analysis and Visualization

This paper presents Spatial GNN Analyzer, an AI-powered framework that integrates Graph Neural Networks with spatial transcriptomics data to enable robust, biologically coherent spatial domain identification and interactive visualization, demonstrating superior performance in preserving tissue architecture compared to conventional non-spatial methods.

Subhasankar Khilar, Natarajan Elamathi2026-08-06
🧬 biology

Asymmetric responses of microbial community structure mediated by root exudates under grazing

This study reveals that grazing alters *Stipa grandis* root exudate profiles to drive asymmetric microbial responses, where short-term grazing promotes bacterial growth via energy-rich lipids while long-term grazing sustains fungal associations through defensive metabolites, with metabolite network positions constrained by thermodynamic properties in bacteria but by molecular structural complexity in fungi.

wei wen2026-08-06
🧬 biology

The Conservation-Tolerance Paradox: Solvent Exposure and Conformational Flexibility Predict False-Positive Deleteriousness Signals Across Ten Deep Mutational Scanning Datasets

This study reveals that evolutionary conservation frequently generates false-positive predictions of deleteriousness for missense mutations, a failure mode that is strongly and independently predicted by high solvent accessibility and conformational flexibility across ten deep mutational scanning datasets.

Amir Mahdi Mahboubi2026-08-06
🧬 biology

Targeting cancer-intrinsic protein neddylation bypasses the loss of JAK/STAT signaling and overcomes acquired resistance to immunotherapy

This study demonstrates that targeting cancer-intrinsic protein neddylation overcomes acquired resistance to immunotherapy in JAK/STAT-deficient tumors by stabilizing chromatin-bound cGAS, thereby restoring inflammatory signaling and enhancing immune cell infiltration to sensitize tumors to PD1 blockade.

Yumeng Mao, Marta Rubies Bedos, Yonglin Lu, Eirini Voutsinou, Irineos Papakyriacou, Liam Alford, Rebeca Parracho, Vaishn (…)2026-08-06
🧬 biology

Structural variants contribute substantially to complex trait heritability

This study introduces the MiXeR-SV tool to demonstrate that structural variants, despite comprising a small fraction of genomic variants, significantly contribute to the heritability of numerous complex traits—particularly in hematological, metabolic, and cancer phenotypes—thereby helping to resolve the gap between SNP-based and twin heritability estimates.

Dat Thanh Nguyen, Alexey A. Shadrin, Nadine Parker, Julian Fuhrer, Nam S. Vo, Anders M. Dale, Ole A. Andreassen, Oleksan (…)2026-08-06