Junior B. b62048614d Experiment: composition-adjusted signature (negative result)
Test whether fixing the cell-composition confound rescues the recovery
test. GSE35007 measured WBC/RBC/MCV per sample, so adjust DE directly
for them (per-gene OLS: expression ~ disease + WBC + RBC + MCV + age +
sex) — a measured-covariate deconvolution, compared vs unadjusted.

Finding (negative, informative): adjustment HURT hydroxyurea (rank
20 -> 35, fails top-10%) — it was recovering partly via composition
genes — and did NOT fix negative-control specificity (still 2/5). Only
gain: top hits become more mechanistically coherent (resveratrol,
aspirin enter). Conclusion: cleaning the disease signature does not
rescue connectivity; the binding constraint is matching-side (needs a
reference-signature library for proper specificity calibration), which
is a multi-disease investment. v1.1 signature NOT replaced.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-23 23:05:08 +02:00

Reverso MVP — Sickle Cell Repurposing Pipeline

A minimum viable drug repurposing pipeline for sickle cell disease: build a disease signature from public transcriptomic data, build drug profiles for ~300 small molecules, and rank them by CMap-style connectivity scoring. Validated by a recovery test — do the two known sickle cell drugs (hydroxyurea, L-glutamine) rank near the top?

See PLAN.md for the full specification, locked decisions, and week-by-week build plan.

Quickstart

# Requires Python >=3.11,<3.13 (see note below)
pip install -e .            # or: pip install -e ".[dev]" for test/lint tooling
pytest                      # run unit tests

Python version note: use Python 3.113.13 (python3.13 -m venv .venv). Python 3.14 is not yet supported by all pipeline dependencies (pydeseq2, cmapPy).

Project layout

data/         raw (downloaded, never edited) / processed / results — gitignored
notebooks/    01..05, run end-to-end in order
src/          identifiers, disease, drugs, scoring, provenance
tests/        scoring unit tests
docs/         recovery_test_report.md, data_sources.md, known_limitations.md

The deliverable

When complete, the artifact to share is three files:

  1. docs/recovery_test_report.md — the 2-page write-up
  2. data/results/ranked_candidates_v1.csv — the ranked drug list
  3. The signature + drug profile files with provenance

Pipeline

Notebook Stage Output
01_setup_identifiers.ipynb Pin disease/gene IDs data/processed/identifiers.json
02_disease_signature.ipynb GEO + differential expression sickle_cell_signature_v1.json
03_drug_profiles.ipynb ChEMBL + LINCS drug_profiles_v1.parquet
04_connectivity_scoring.ipynb CMap scoring ranked_candidates_v1.csv
05_recovery_test.ipynb Validation docs/recovery_test_report.md

Every persisted artifact carries a confidence tier (A/B/C) and provenance. See PLAN.md §3.

Description
Drug Repurposing Tool
Readme 139 KiB
Languages
Python 93%
Jupyter Notebook 7%