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Liu Lab

Research

Ideals

  • Understand and creatively use the language of life.
  • Understand and engineer the states of cells.
  • Achieve healthy aging and cure neurodegenerative disease.

What I cannot create, I do not understand.

— Richard Feynman

Transcription factors and cofactors, level by level

We map what regulators do at every level, from the protein sequence up to the whole organism, and across species.

  • Sequence: The protein sequence a function rests on.
  • Biophysics: How proteins meet DNA, RNA and other molecules.
  • Gene: How gene expression is regulated, in vitro and in vivo.
  • Cell and organism: How whole cell states shift, and what the organism shows.
  • Evolution: Comparative genomics, from model organisms to humans.

Regulators designed at scale to change cell states

We design and synthesize regulators for a function, test them in high-throughput perturbation screens, and feed every result back into our models.

  • Design and synthesis: Sequences designed for a biological function.
  • Perturb and observe: High-throughput perturbation and readout.
  • Iterate: Experiments that sharpen knowledge and models each round.
  • Engineer: Cell states of aging and disease, changed on purpose.

Knowledge and hypotheses for aging and neurodegeneration

We build a knowledge graph across molecules, cells and organisms, and an AI co-scientist on top of it that proposes the next hypothesis and experiment.

  • Knowledge graph: Molecular, cellular and organism data in one graph.
  • AI co-scientist: A system that reasons over the graph.
  • Next round: Hypotheses, experiment designs and analyses, proposed by AI.
  • Toward the clinic: From model organisms and lab systems to patients.