Arc Research

Large-scale mapping of environmental-genetic interactions illustrates the dynamic nature of cell-cycle and DNA repair regulation
Molecular Cell
Gilbert Lab

Large-scale mapping of environmental-genetic interactions illustrates the dynamic nature of cell-cycle and DNA repair regulation

Cells integrate exogenous and endogenous signals, likely through dynamic functional associations between genes, but measuring these relationships is non-trivial. Here, we evaluate genetic associations in response to cell-cycle interruption, genotoxic perturbation, and nutrient deprivation using genetic interaction mapping in human cells.

Rapid directed evolution guided by protein language models and epistatic interactions
Science
Hsu LabKonermann Lab

Rapid directed evolution guided by protein language models and epistatic interactions

We present MULTI-evolve, a rapid evolution framework that systematically engineers multimutants. Our approach combines protein language models or existing functional data with epistatic modelling to predict synergistic combinations.

Red blood cells serve as a primary glucose sink to improve glucose tolerance at altitude
Cell Metabolism
Jain Lab

Red blood cells serve as a primary glucose sink to improve glucose tolerance at altitude

High-altitude conditions improve glucose tolerance and reduce diabetes risk, but the physiological mechanism is not well understood. Using mouse models, we found that hypoxia alone robustly improved glucose tolerance and that the effect persisted for weeks after returning to normal oxygen levels.

dnaHNet: A Scalable and Hierarchical Foundation Model for Genomic Sequence Learning
arXiv
Goodarzi LabHsu Lab

dnaHNet: A Scalable and Hierarchical Foundation Model for Genomic Sequence Learning

Standard fixed-vocabulary tokenizers fragment biologically meaningful motifs, while nucleotide-level models preserve biological coherence but incur prohibitive computational costs for long contexts. We introduce dnaHNet, a state-of-the-art tokenizer-free autoregressive model that segments and models genomic sequences end-to-end.

Systemic hypoxia suppresses solid tumor growth
BioRxiv
Jain LabGoodarzi Lab

Systemic hypoxia suppresses solid tumor growth

Local hypoxia is a hallmark of solid tumors and a negative prognostic factor in the progression and treatment of cancer. Here, we showed that systemic hypoxia, in contrast to localized tumor hypoxia, decreases tumor growth in vivo across multiple cancer types and preclinical models.

Rewriting endogenous human transcripts with dual CRISPR-guided 3′ trans-splicing
Cell Systems
Hsu LabKonermann Lab

Rewriting endogenous human transcripts with dual CRISPR-guided 3′ trans-splicing

Here, we report the development of RNA-guided trans-splicing with Cas editor (RESPLICE). RESPLICE uses two orthogonal RNA-targeting CRISPR effectors to co-localize a trans-splicing pre-mRNA and to inhibit the cis-splicing reaction, respectively.

Systematic annotation of orphan RNAs reveals blood-accessible molecular barcodes of cancer identity and cancer-emergent oncogenic drivers
Cell Reports Medicine
Goodarzi Lab

Systematic annotation of orphan RNAs reveals blood-accessible molecular barcodes of cancer identity and cancer-emergent oncogenic drivers

From extrachromosomal DNA to neo-peptides, reprogramming of cancer genomes leads to the emergence of cancer state-specific molecules. Here, we systematically identify and characterize a large repertoire of orphan non-coding RNAs (oncRNAs), a class of cancer-emergent small RNAs, across 32 tumor types.

cyto: ultra high-throughput processing of 10x-flex single cell sequencing
BioRxiv
Computational

cyto: ultra high-throughput processing of 10x-flex single cell sequencing

Single-cell genomics is rapidly scaling toward billion-cell atlases, but computational analysis has become a critical bottleneck. Here we present cyto, an ultra highthroughput processor for 10x Genomics Flex single-cell sequencing optimized for production-scale analysis.

Stack: In-context learning of single-cell biology
BioRxiv
Computational

Stack: In-context learning of single-cell biology

Single-cell transcriptomics offers the promise of measuring the diversity of cellular phenotypes across species and diseases. Here, we present Stack, a foundation model trained on 149 million uniformly preprocessed human single cells that leverages tabular attention to generate representations for each cell informed by the cells in its context.

Semantic design of functional de novo genes from a genomic language model
Nature
Hie Lab

Semantic design of functional de novo genes from a genomic language model

Generative genomic models can design increasingly complex biological systems. However, controlling these models to generate novel sequences with desired functions remains challenging. Here, we show that Evo can leverage genomic context to perform function-guided design that accesses novel regions of sequence space.