Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

KCNC3

potassium voltage-gated channel subfamily C member 3

translation score 0.63, read 2026-10-20; 2 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.06 from other evidence0.00
cell type
Human Protein Atlas
cell type enhanced, including microglia; strongest in proximal tubule cells0.75
chemistry
Open Targets
compounds already reach it: tedisamil, dalfampridine, amifampridine phosphate +31.00
trials
ClinicalTrials.gov
2 Parkinson's trials, 0 stopped1.00
literature
PubMed
2 Parkinson's papers of 770.85
pathways
Reactome
1 pathway; mostly dopamine synapse1.00
proposal for KCNC3, translation score 0.63

Knock down and overexpress KCNC3 in microglia; measure evoked dopamine release and dopamine transporter uptake 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; existing compounds already reach the inhibition arm.
Molecular readout
evoked dopamine release and dopamine transporter uptake
Functional readout
uptake and clearance of α-synuclein fibrils and NLRP3 inflammasome activation (IL-1β release)
Rule-out
If neither arm moves evoked dopamine release 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 KCNC3 in iPSC-derived microglia (iMGL); n = 3 differentiations; readouts: evoked dopamine release and dopamine transporter uptake; 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

  1. KCNC3 in microglia, braak-0.72 (p 0.027) → +0.05 (p 0.891)receipt 4718
  2. KCNC3 in dopamine neurons, braak-0.63 (p 0.068) → -0.19 (p 0.618)receipt 4719

Swarm cases

receipt 4719: KCNC3 in dopamine neurons, braak

power
full sample -0.50 (p 0.036, n 18), 95% CI -0.78 to -0.04. the interval excludes zero: something may be there, smaller than a half can see.
confounder
adjusted for sex: -0.47 (p 0.051, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: -0.60 (p 0.0080, n 18). not the mix.
skeptic
leave-one-out range -0.63 to -0.43, sign flips 0; without severely affected donors -0.50 (p 0.036, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for KCNC3 in dopamine neurons.

case closed: nothing better to follow up.

receipt 4718: KCNC3 in microglia, braak

power
full sample -0.46 (p 0.052, n 18), 95% CI -0.77 to +0.00. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: -0.47 (p 0.049, n 18). holds up.
composition
microglia share of nuclei vs axis -0.11 (p 0.652); controlling for it: -0.54 (p 0.020, n 18). not the mix.
skeptic
leave-one-out range -0.62 to -0.40, sign flips 0; without severely affected donors -0.46 (p 0.052, n 18). robust.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for KCNC3 in microglia.

case closed: nothing better to follow up.

Receipts

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