Arc Research

Extracellular cGAMP transmission exacerbates neuroinflammation in aging and multiple sclerosis
BioRxiv
Li Lab

Extracellular cGAMP transmission exacerbates neuroinflammation in aging and multiple sclerosis

Neuroinflammation drives neurodegeneration and cognitive decline in aging, but the signals that spread this inflammation across the CNS remain unclear. Here, we show in mice that advanced age and experimental autoimmune encephalomyelitis both result in elevated cytosolic mtDNA in microglia.

Coevolutionary mining of prokaryotic non-coding elements with a genome language mode
BioRxiv
Hie Lab

Coevolutionary mining of prokaryotic non-coding elements with a genome language mode

Microbial genomes encode essential ncRNAs and nucleic-acid-interacting proteins. However, discovery of these systems remains based on similarity to known sequences. Here, we introduce Minerva, a framework for coevolutionary mining that uses genome language models to predict pairwise interactions directly from sequence.

Tahoe-100M: Mapping drug-induced molecular phenotypes at single-cell resolution
Cell
Goodarzi LabComputational

Tahoe-100M: Mapping drug-induced molecular phenotypes at single-cell resolution

Tahoe-100M, generated by Tahoe, is a giga-scale single-cell perturbation atlas comprising 100 million transcriptomes from 50 diverse cancer cell lines treated with 1,100 drug-dose conditions. This parallel profiling of thousands of perturbations at single-cell resolution with minimal batch effects is enabled by the Mosaic platform.

scBaseCount: An AI agent-curated, standardized, auto-updated single-cell data repository
Cell
Computational

scBaseCount: An AI agent-curated, standardized, auto-updated single-cell data repository

Here, we introduce scBaseCount, a database that leverages an AI agent to automate discovery and metadata extraction and standardize data processing. It is the largest public repository of single-cell gene expression data, comprising over 502 million cells across 27 organisms and 75 tissues.

ENPP1 buffers extracellular cGAMP in brown adipose tissue to limit insulin resistance
Cell Reports
Li Lab

ENPP1 buffers extracellular cGAMP in brown adipose tissue to limit insulin resistance

The mechanism underlying the role of ENPP1 in metabolic disease remains unsolved. Using a 2′3′-cyclic GMP-AMP (cGAMP)-hydrolysis-deficient mouse (Enpp1H362A), we show that selective loss of this activity exacerbates high-fat diet (HFD)-induced weight gain and insulin resistance.

Chemogenomic maps reveal a PRDX1-dependent iron–damage axis in the DNA damage response
Nature Chemical Biology
Gilbert Lab

Chemogenomic maps reveal a PRDX1-dependent iron–damage axis in the DNA damage response

The DNA damage response (DDR) is a sophisticated network of cellular pathways whose perturbation leads to genome instability and is a key hallmark of oncogenesis. Here, we present data from 32 genome-scale loss-of-function CRISPR interference chemical–genetic screens with inhibitors targeting core constituents of the DDR machinery.

The diversity of terminal electron acceptors across eukaryotes
Trends in Biochemical Sciences
Jain LabReview

The diversity of terminal electron acceptors across eukaryotes

his review summarizes respiratory and fermentative electron acceptors across eukaryotes, focusing on the evolution of anaerobic pathways. We highlight how ancient metabolic strategies have been conserved and modified to support organisms’ adaptation to diverse environmental niches and to sustain biological resilience.

Predicting cellular responses to perturbation across diverse contexts with STATE
Cell
Computational

Predicting cellular responses to perturbation across diverse contexts with STATE

While machine learning models offer potential for predicting transcriptomic effects of perturbation, they currently struggle to generalize across cellular contexts. Here, we introduce State, a machine learning model that predicts perturbation effects while accounting for cellular heterogeneity within and across experiments.

Virtual Cell Challenge 2026: Benchmarking zero-shot generalization across cellular contexts
Cell
Virtual Cell ChallengeCommentary

Virtual Cell Challenge 2026: Benchmarking zero-shot generalization across cellular contexts

The Virtual Cell Challenge returns in 2026 with a more demanding test of biological generalization: zero-shot prediction across multiple independent cellular contexts. Participants will build models to predict gene knockdown responses in a new Arc-generated dataset comprising unseen cell lines.

Integrative spatial profiling of 3D genome organization and gene expression in tissue
Cell
Zhou Lab

Integrative spatial profiling of 3D genome organization and gene expression in tissue

Three-dimensional genome organization shapes transcriptional regulation, yet measuring its spatial coordination in situ within intact tissues remains challenging. We present Spatial Hi-C-RNA, a multimodal platform that simultaneously maps genome-wide chromatin contacts and transcriptomes from the same tissue section at near-single-cell resolution.