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← All articlesEditorial brief · abstract-levelScore 62/100Confidence medium
biorxiv2026-08-12computationalOXPHOSimmunologymethods

PerturbLDM predicts unseen drug–dose–line transcriptomes and keeps an interferon FAO-OXPHOS program

PerturbLDM is a Tahoe-100M-pretrained latent-diffusion model that generates single-cell transcriptional responses to perturbations. On 13,942 held-out drug/dose/line combinations it beats leading methods and beats an additive marginal baseline in 95.2% of conditions. It ranks PANACEA compounds by pathway neighbors, builds a fetal-colon state more accurately than Squidiff, and in PBMCs captures six of seven interferon/antiviral programs plus an interferon-associated FAO-OXPHOS program better than scGen. The mitochondrial hook is that FAO-OXPHOS module, not a new metabolic mechanism.

Mito.news · at a glance

Signal profile (abstract-level)

computational · OXPHOS · immunology · methods

Score 62/100BIORXIVmedium confidencecomputational
62
Importance
42
Mito signal
25
Dysfunction
75
Evidence
58
Translational

Editorial signal profile from the abstract (importance score, mito keywords, dysfunction tags, evidence density, translational cues). Not a figure reproduced from the preprint PDF.

Finding. A latent-diffusion model trained on Tahoe-100M can invent plausible single-cell responses to drug–dose–line combinations it has not seen, and it beats a simple add-the-margins baseline in 95% of 13,942 held-out cases. In PBMCs it keeps interferon programs and, specifically, an interferon-associated FAO-OXPHOS program better than scGen. Mitochondria appear as a transcriptional module the generator is not allowed to blur.

Why this paper matters

Perturbation space is too big to measure. A conditional generator that preserves a metabolic-mitochondrial program under interferon is more useful to this desk than another generic UMAP smoother. It is still a model.

What they actually measured

Held-out combination metrics, compound-neighbor ranking, two smaller biological case studies including FAO-OXPHOS.

How to read the score

Around 60. Score 62.

What to do with it

If you impute perturbation responses, compare PerturbLDM on your mitochondrial modules. Do not skip the wet lab. The directional implication is that conditional diffusion can carry FAO-OXPHOS programs through unseen interferon-like contexts.

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Source preprint

PerturbLDM: conditional latent diffusion for modelling single-cell perturbation responses

10.64898/2026.08.07.743610

Yu L, Hsieh K, Chu Y, Lan Q, Zhao X, Hsu Y, Wood CS, Rasmy L, Pilie PG, Zhi D, Zhao Z, Jiang X, Dai Y.

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