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 enhanced, including microglia; strongest in neutrophils | 0.75 |
| 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 23 | 0.85 |
| pathways Reactome | 1 pathway; mostly vesicle traffic | 1.00 |
Knock down and overexpress CYTH4 in microglia; measure LRRK2 kinase activity (pT73-Rab10) and lysosome position and uptake and clearance of α-synuclein fibrils and NLRP3 inflammasome activation (IL-1β release).
- Cell type
- microglia
- Direction
- Both arms: public data does not say which way helps.
- Molecular readout
- LRRK2 kinase activity (pT73-Rab10) and lysosome position
- Functional readout
- uptake and clearance of α-synuclein fibrils and NLRP3 inflammasome activation (IL-1β release)
- Rule-out
- If neither arm moves LRRK2 kinase activity (pT73-Rab10) 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 CYTH4 in iPSC-derived microglia (iMGL); n = 3 differentiations; readouts: LRRK2 kinase activity (pT73-Rab10) and lysosome position; uptake and clearance of α-synuclein fibrils and NLRP3 inflammasome activation (IL-1β release). Controls: non-targeting guide, empty vector. About 8 to 10 weeks, most of it differentiation.
Sealed predictions
- CYTH4 in dopamine neurons, braak-0.25 (p 0.508) → -0.47 (p 0.197)receipt 13991
- CYTH4 in microglia, braak+0.06 (p 0.874) → -0.31 (p 0.414)receipt 13990
Swarm cases
receipt 13991: CYTH4 in dopamine neurons, braak
- power
- full sample -0.43 (p 0.072, n 18), 95% CI -0.75 to +0.04. the interval is wide: not enough donors to tell.
- confounder
- adjusted for sex: -0.41 (p 0.093, n 18). does not hold up.
- composition
- dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.57 (p 0.014, n 18). not the mix.
- skeptic
- leave-one-out range -0.56 to -0.36, sign flips 0; without severely affected donors -0.43 (p 0.072, n 18). robust.
- cell type
- no other cell group does better.
- axis
- no measure beats "tracks Braak Lewy-body stage" for CYTH4 in dopamine neurons.
case closed: nothing better to follow up.
receipt 13990: CYTH4 in microglia, braak
- power
- full sample -0.29 (p 0.239, n 18), 95% CI -0.67 to +0.20. the interval is wide: not enough donors to tell.
- confounder
- adjusted for sex: -0.23 (p 0.360, n 18). does not hold up.
- composition
- microglia share of nuclei vs axis -0.11 (p 0.652); controlling for it: -0.22 (p 0.379, n 18). could be the mix.
- skeptic
- leave-one-out range -0.43 to -0.18, sign flips 0; without severely affected donors -0.29 (p 0.239, n 18). fragile.
- cell type
- no other cell group does better.
- axis
- no measure beats "tracks Braak Lewy-body stage" for CYTH4 in microglia.
case closed: nothing better to follow up.
Receipts
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