Legend
Active program (color = modality) Discontinued program (color = modality) Placement inferred Possibly inactive
Pathway step Step, no program yet Overactive / reduced in ADPKD / fixed by selected drug
PC1 route Drives Inhibits
Modality
Stage
Pathways

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Cyst lumen · urine side (apical) Interstitium · blood side (basolateral) Cyst-lining epithelial cell Primary cilium Nucleus ER Mitochondrion CFTR Mechanism undisclosed Whole-kidney / systemic

Pathway diagram is a simplified schematic, not to scale