Braak stage 1, 100% of pigmented neurons left
parkinsonconnecting

Gene record

HAVCR2

hepatitis A virus cellular receptor 2

translation score 0.65, read 2026-10-23; 2 sealed predictions, 0 held; 2 receipts.

Six readers

readerfoundscore
genetics
Open Targets
no genetic evidence; overall 0.02 from other evidence0.00
cell type
Human Protein Atlas
group enriched in microglia (221 nCPM)1.00
chemistry
Open Targets
compounds already reach it: lomvastomig, cobolimab, sabatolimab0.81
trials
ClinicalTrials.gov
no Parkinson's trials on record: an open field1.00
literature
PubMed
1 Parkinson's papers of 4900.91
pathways
Reactome
1 pathway; mostly immune signalling0.90
proposal for HAVCR2, translation score 0.65

Knock down and overexpress HAVCR2 in microglia; measure IL-1β and TNF release and surface HLA-DR 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
IL-1β and TNF release and surface HLA-DR
Functional readout
uptake and clearance of α-synuclein fibrils and NLRP3 inflammasome activation (IL-1β release)
Rule-out
If neither arm moves IL-1β 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 HAVCR2 in iPSC-derived microglia (iMGL); n = 3 differentiations; readouts: IL-1β and TNF release and surface HLA-DR; 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. HAVCR2 in dopamine neurons, braak+0.30 (p 0.441) → +0.19 (p 0.623)receipt 7462
  2. HAVCR2 in microglia, braak-0.01 (p 0.982) → +0.24 (p 0.530)receipt 7461

Swarm cases

receipt 7462: HAVCR2 in dopamine neurons, braak

power
full sample +0.20 (p 0.424, n 18), 95% CI -0.29 to +0.61. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.26 (p 0.298, n 18). does not hold up.
composition
dopamine neurons share of nuclei vs axis +0.05 (p 0.854); controlling for it: +0.27 (p 0.281, n 18). could be the mix.
skeptic
leave-one-out range +0.10 to +0.36, sign flips 0; without severely affected donors +0.20 (p 0.424, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for HAVCR2 in dopamine neurons.

case closed: nothing better to follow up.

receipt 7461: HAVCR2 in microglia, braak

power
full sample +0.09 (p 0.709, n 18), 95% CI -0.39 to +0.54. the interval is wide: not enough donors to tell.
confounder
adjusted for sex: +0.08 (p 0.741, n 18). does not hold up.
composition
microglia share of nuclei vs axis -0.11 (p 0.652); controlling for it: +0.05 (p 0.854, n 18). could be the mix.
skeptic
leave-one-out range -0.04 to +0.20, sign flips 2; without severely affected donors +0.09 (p 0.709, n 18). fragile.
cell type
no other cell group does better.
axis
no measure beats "tracks Braak Lewy-body stage" for HAVCR2 in microglia.

case closed: nothing better to follow up.

Receipts

loading the receipts