Six readers
| reader | found | score |
|---|---|---|
| genetics Open Targets | no genetic evidence; overall 0.00 from other evidence | 0.00 |
| cell type Human Protein Atlas | cell type enriched in brain excitatory neurons (2 nCPM) | 1.00 |
| chemistry Open Targets | reachable by antibody | 0.45 |
| trials ClinicalTrials.gov | no Parkinson's trials on record: an open field | 1.00 |
| literature PubMed | 2 Parkinson's papers of 616 | 0.85 |
| pathways Reactome | 21 pathways; mostly growth signalling | 0.60 |
Knock down and overexpress FGF3 in dopamine neurons; measure phospho-ERK and phospho-AKT response to GDNF and survival of TH-positive neurons and phospho-α-synuclein (pS129) inclusions after seeding with α-synuclein fibrils.
- Cell type
- dopamine neurons
- Direction
- Both arms: public data does not say which way helps.
- Molecular readout
- phospho-ERK and phospho-AKT response to GDNF
- Functional readout
- survival of TH-positive neurons and phospho-α-synuclein (pS129) inclusions after seeding with α-synuclein fibrils
- Rule-out
- If neither arm moves phospho-ERK by 20% or more against non-targeting and empty-vector controls, across three independent differentiations, the hypothesis is wrong.
- Lab request
- CRISPRi knockdown and lentiviral overexpression of FGF3 in iPSC-derived midbrain dopamine neurons (FOXA2+, LMX1A+, TH+); n = 3 differentiations; readouts: phospho-ERK and phospho-AKT response to GDNF; survival of TH-positive neurons and phospho-α-synuclein (pS129) inclusions after seeding with α-synuclein fibrils. Controls: non-targeting guide, empty vector. About 8 to 10 weeks, most of it differentiation.
Sealed predictions
- FGF3 in dopamine neurons, braak-0.58 (p 0.101) → -0.11 (p 0.784)receipt 15174
Swarm cases
receipt 15174: FGF3 in dopamine neurons, braak
- power
- full sample -0.28 (p 0.254, n 18), 95% CI -0.66 to +0.21. the interval is wide: not enough donors to tell.
- confounder
- adjusted for sex: -0.27 (p 0.281, n 18). does not hold up.
- composition
- dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.46 (p 0.055, n 18). could be the mix.
- skeptic
- leave-one-out range -0.42 to -0.20, sign flips 0; without severely affected donors -0.28 (p 0.254, n 18). fragile.
- cell type
- no other cell group does better.
- axis
- no measure beats "tracks Braak Lewy-body stage" for FGF3 in dopamine neurons.
case closed: nothing better to follow up.
Receipts
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