Tau propagation mechanisms and therapeutic interception points¶
Notebook ID: nb-SDA-2026-04-04-gap-tau-prop-20260402003221 · Analysis: SDA-2026-04-04-gap-tau-prop-20260402003221 · Generated: 2026-04-26T23:48:26
Research question¶
Investigate prion-like spreading of tau pathology through connected brain regions, focusing on trans-synaptic transfer, extracellular vesicle-mediated spread, and intervention strategies at each propagation step
Approach¶
This notebook is generated programmatically from real Forge tool calls and SciDEX debate data. Forge tools used: PubMed Search, MyGene, STRING PPI, Reactome pathways, Enrichr.
Debate Summary¶
Quality score: 0.95 · Rounds: 3
1. Target gene annotations (MyGene + Human Protein Atlas)¶
import pandas as pd
ann_rows = [{'gene': 'CHMP4B', 'name': 'charged multivesicular body protein 4B', 'protein_class': "['Disease related genes', 'Essential proteins', 'Human disea", 'disease_involvement': "['Cataract', 'Disease variant']"}, {'gene': 'HSP90AA1', 'name': 'heat shock protein 90 alpha family class A member 1', 'protein_class': "['Cancer-related genes', 'Enzymes', 'Plasma proteins', 'Pred", 'disease_involvement': "['Cancer-related genes']"}, {'gene': 'LRP1', 'name': 'LDL receptor related protein 1', 'protein_class': "['Candidate cardiovascular disease genes', 'CD markers', 'Di", 'disease_involvement': "['Disease variant']"}, {'gene': 'NLGN1', 'name': 'neuroligin 1', 'protein_class': "['Disease related genes', 'Human disease related genes', 'Po", 'disease_involvement': "['Autism', 'Autism spectrum disorder', 'Disease variant']"}, {'gene': 'P2RX7', 'name': 'purinergic receptor P2X 7', 'protein_class': "['Predicted membrane proteins', 'Transporters']", 'disease_involvement': '—'}, {'gene': 'SNAP25', 'name': 'synaptosome associated protein 25', 'protein_class': "['Disease related genes', 'FDA approved drug targets', 'Huma", 'disease_involvement': "['Congenital myasthenic syndrome', 'Disease variant', 'FDA approved drug targets"}, {'gene': 'TREM2', 'name': 'triggering receptor expressed on myeloid cells 2', 'protein_class': "['Disease related genes', 'Human disease related genes', 'Po", 'disease_involvement': "['Alzheimer disease', 'Amyloidosis', 'Disease variant', 'Neurodegeneration']"}, {'gene': 'VCP', 'name': 'valosin containing protein', 'protein_class': "['Disease related genes', 'Enzymes', 'Essential proteins', '", 'disease_involvement': "['Amyotrophic lateral sclerosis', 'Charcot-Marie-Tooth disease', 'Disease varian"}]
pd.DataFrame(ann_rows)
| gene | name | protein_class | disease_involvement | |
|---|---|---|---|---|
| 0 | CHMP4B | charged multivesicular body protein 4B | ['Disease related genes', 'Essential proteins'... | ['Cataract', 'Disease variant'] |
| 1 | HSP90AA1 | heat shock protein 90 alpha family class A mem... | ['Cancer-related genes', 'Enzymes', 'Plasma pr... | ['Cancer-related genes'] |
| 2 | LRP1 | LDL receptor related protein 1 | ['Candidate cardiovascular disease genes', 'CD... | ['Disease variant'] |
| 3 | NLGN1 | neuroligin 1 | ['Disease related genes', 'Human disease relat... | ['Autism', 'Autism spectrum disorder', 'Diseas... |
| 4 | P2RX7 | purinergic receptor P2X 7 | ['Predicted membrane proteins', 'Transporters'] | — |
| 5 | SNAP25 | synaptosome associated protein 25 | ['Disease related genes', 'FDA approved drug t... | ['Congenital myasthenic syndrome', 'Disease va... |
| 6 | TREM2 | triggering receptor expressed on myeloid cells 2 | ['Disease related genes', 'Human disease relat... | ['Alzheimer disease', 'Amyloidosis', 'Disease ... |
| 7 | VCP | valosin containing protein | ['Disease related genes', 'Enzymes', 'Essentia... | ['Amyotrophic lateral sclerosis', 'Charcot-Mar... |
2. GO Biological Process enrichment (Enrichr)¶
go_bp = [{'rank': 1, 'term': 'Positive Regulation Of Amyloid-Beta Clearance (GO:1900223)', 'p_value': 2.0982540726248864e-06, 'odds_ratio': 1665.6666666666667, 'genes': ['LRP1', 'TREM2']}, {'rank': 2, 'term': 'Positive Regulation Of Endocytosis (GO:0045807)', 'p_value': 3.2745060493527168e-06, 'odds_ratio': 157.23157894736843, 'genes': ['NLGN1', 'LRP1', 'TREM2']}, {'rank': 3, 'term': 'Positive Regulation Of ATP Biosynthetic Process (GO:2001171)', 'p_value': 3.9152037969490335e-06, 'odds_ratio': 1110.3333333333333, 'genes': ['VCP', 'TREM2']}, {'rank': 4, 'term': 'Positive Regulation Of ATP Metabolic Process (GO:1903580)', 'p_value': 5.032841318877048e-06, 'odds_ratio': 951.6666666666666, 'genes': ['VCP', 'TREM2']}, {'rank': 5, 'term': 'Positive Regulation Of Protein Catabolic Process (GO:0045732)', 'p_value': 5.187357870686843e-06, 'odds_ratio': 134.17752808988763, 'genes': ['HSP90AA1', 'VCP', 'TREM2']}, {'rank': 6, 'term': 'Positive Regulation Of Purine Nucleotide Biosynthetic Process (GO:1900373)', 'p_value': 9.221402746009655e-06, 'odds_ratio': 666.0666666666667, 'genes': ['VCP', 'TREM2']}, {'rank': 7, 'term': 'Astrocyte Activation (GO:0048143)', 'p_value': 9.221402746009655e-06, 'odds_ratio': 666.0666666666667, 'genes': ['LRP1', 'TREM2']}, {'rank': 8, 'term': 'Positive Regulation Of Cellular Component Organization (GO:0051130)', 'p_value': 9.633449558779347e-06, 'odds_ratio': 108.44727272727273, 'genes': ['VCP', 'LRP1', 'TREM2']}, {'rank': 9, 'term': 'Regulation Of ATP Biosynthetic Process (GO:2001169)', 'p_value': 1.270931618352025e-05, 'odds_ratio': 555.0, 'genes': ['VCP', 'TREM2']}, {'rank': 10, 'term': 'Regulation Of Amyloid-Beta Clearance (GO:1900221)', 'p_value': 1.4661684218577711e-05, 'odds_ratio': 512.2820512820513, 'genes': ['LRP1', 'TREM2']}]
go_df = pd.DataFrame(go_bp)[['term','p_value','odds_ratio','genes']]
go_df['p_value'] = go_df['p_value'].apply(lambda p: f'{p:.2e}')
go_df['odds_ratio'] = go_df['odds_ratio'].round(1)
go_df['term'] = go_df['term'].str[:60]
go_df['n_hits'] = go_df['genes'].apply(len)
go_df['genes'] = go_df['genes'].apply(lambda g: ', '.join(g))
go_df[['term','n_hits','p_value','odds_ratio','genes']]
| term | n_hits | p_value | odds_ratio | genes | |
|---|---|---|---|---|---|
| 0 | Positive Regulation Of Amyloid-Beta Clearance ... | 2 | 2.10e-06 | 1665.7 | LRP1, TREM2 |
| 1 | Positive Regulation Of Endocytosis (GO:0045807) | 3 | 3.27e-06 | 157.2 | NLGN1, LRP1, TREM2 |
| 2 | Positive Regulation Of ATP Biosynthetic Proces... | 2 | 3.92e-06 | 1110.3 | VCP, TREM2 |
| 3 | Positive Regulation Of ATP Metabolic Process (... | 2 | 5.03e-06 | 951.7 | VCP, TREM2 |
| 4 | Positive Regulation Of Protein Catabolic Proce... | 3 | 5.19e-06 | 134.2 | HSP90AA1, VCP, TREM2 |
| 5 | Positive Regulation Of Purine Nucleotide Biosy... | 2 | 9.22e-06 | 666.1 | VCP, TREM2 |
| 6 | Astrocyte Activation (GO:0048143) | 2 | 9.22e-06 | 666.1 | LRP1, TREM2 |
| 7 | Positive Regulation Of Cellular Component Orga... | 3 | 9.63e-06 | 108.4 | VCP, LRP1, TREM2 |
| 8 | Regulation Of ATP Biosynthetic Process (GO:200... | 2 | 1.27e-05 | 555.0 | VCP, TREM2 |
| 9 | Regulation Of Amyloid-Beta Clearance (GO:1900221) | 2 | 1.47e-05 | 512.3 | LRP1, TREM2 |
import matplotlib.pyplot as plt
import numpy as np
go_bp = [{'rank': 1, 'term': 'Positive Regulation Of Amyloid-Beta Clearance (GO:1900223)', 'p_value': 2.0982540726248864e-06, 'odds_ratio': 1665.6666666666667, 'genes': ['LRP1', 'TREM2']}, {'rank': 2, 'term': 'Positive Regulation Of Endocytosis (GO:0045807)', 'p_value': 3.2745060493527168e-06, 'odds_ratio': 157.23157894736843, 'genes': ['NLGN1', 'LRP1', 'TREM2']}, {'rank': 3, 'term': 'Positive Regulation Of ATP Biosynthetic Process (GO:2001171)', 'p_value': 3.9152037969490335e-06, 'odds_ratio': 1110.3333333333333, 'genes': ['VCP', 'TREM2']}, {'rank': 4, 'term': 'Positive Regulation Of ATP Metabolic Process (GO:1903580)', 'p_value': 5.032841318877048e-06, 'odds_ratio': 951.6666666666666, 'genes': ['VCP', 'TREM2']}, {'rank': 5, 'term': 'Positive Regulation Of Protein Catabolic Process (GO:0045732)', 'p_value': 5.187357870686843e-06, 'odds_ratio': 134.17752808988763, 'genes': ['HSP90AA1', 'VCP', 'TREM2']}, {'rank': 6, 'term': 'Positive Regulation Of Purine Nucleotide Biosynthetic Process (GO:1900373)', 'p_value': 9.221402746009655e-06, 'odds_ratio': 666.0666666666667, 'genes': ['VCP', 'TREM2']}, {'rank': 7, 'term': 'Astrocyte Activation (GO:0048143)', 'p_value': 9.221402746009655e-06, 'odds_ratio': 666.0666666666667, 'genes': ['LRP1', 'TREM2']}, {'rank': 8, 'term': 'Positive Regulation Of Cellular Component Organization (GO:0051130)', 'p_value': 9.633449558779347e-06, 'odds_ratio': 108.44727272727273, 'genes': ['VCP', 'LRP1', 'TREM2']}]
terms = [t['term'][:45] for t in go_bp][::-1]
neglogp = [-np.log10(max(t['p_value'], 1e-300)) for t in go_bp][::-1]
fig, ax = plt.subplots(figsize=(9, 4.5))
ax.barh(terms, neglogp, color='#4fc3f7')
ax.set_xlabel('-log10(p-value)')
ax.set_title('Top GO:BP enrichment (Enrichr)')
ax.grid(axis='x', alpha=0.3)
plt.tight_layout(); plt.show()
3. STRING protein interaction network¶
ppi = [{'protein1': 'LRP1', 'protein2': 'HSP90AA1', 'score': 0.988, 'nscore': 0, 'fscore': 0, 'pscore': 0, 'ascore': 0, 'escore': 0.412, 'dscore': 0, 'tscore': 0.982}, {'protein1': 'HSP90AA1', 'protein2': 'VCP', 'score': 0.803, 'nscore': 0, 'fscore': 0, 'pscore': 0, 'ascore': 0, 'escore': 0.423, 'dscore': 0.5, 'tscore': 0.374}]
ppi_df = pd.DataFrame(ppi).sort_values('score', ascending=False)
display_cols = [c for c in ['protein1','protein2','score','escore','tscore'] if c in ppi_df.columns]
print(f'{len(ppi_df)} STRING edges')
ppi_df[display_cols].head(20)
2 STRING edges
| protein1 | protein2 | score | escore | tscore | |
|---|---|---|---|---|---|
| 0 | LRP1 | HSP90AA1 | 0.988 | 0.412 | 0.982 |
| 1 | HSP90AA1 | VCP | 0.803 | 0.423 | 0.374 |
import math
ppi = [{'protein1': 'LRP1', 'protein2': 'HSP90AA1', 'score': 0.988, 'nscore': 0, 'fscore': 0, 'pscore': 0, 'ascore': 0, 'escore': 0.412, 'dscore': 0, 'tscore': 0.982}, {'protein1': 'HSP90AA1', 'protein2': 'VCP', 'score': 0.803, 'nscore': 0, 'fscore': 0, 'pscore': 0, 'ascore': 0, 'escore': 0.423, 'dscore': 0.5, 'tscore': 0.374}]
if ppi:
nodes = sorted({p for e in ppi for p in (e['protein1'], e['protein2'])})
n = len(nodes)
pos = {n_: (math.cos(2*math.pi*i/n), math.sin(2*math.pi*i/n)) for i, n_ in enumerate(nodes)}
fig, ax = plt.subplots(figsize=(7, 7))
for e in ppi:
x1,y1 = pos[e['protein1']]; x2,y2 = pos[e['protein2']]
ax.plot([x1,x2],[y1,y2], color='#888', alpha=0.3+0.5*e.get('score',0))
for name,(x,y) in pos.items():
ax.scatter([x],[y], s=450, color='#ffd54f', edgecolors='#333', zorder=3)
ax.annotate(name, (x,y), ha='center', va='center', fontsize=8, fontweight='bold', zorder=4)
ax.set_aspect('equal'); ax.axis('off')
ax.set_title(f'STRING PPI network ({len(ppi)} edges)')
plt.tight_layout(); plt.show()
4. Reactome pathway footprint¶
pw_rows = [{'gene': 'CHMP4B', 'n_pathways': 8, 'top_pathway': 'Budding and maturation of HIV virion'}, {'gene': 'HSP90AA1', 'n_pathways': 8, 'top_pathway': 'Signaling by ERBB2'}, {'gene': 'LRP1', 'n_pathways': 2, 'top_pathway': 'Scavenging of heme from plasma'}, {'gene': 'NLGN1', 'n_pathways': 1, 'top_pathway': 'Neurexins and neuroligins'}, {'gene': 'P2RX7', 'n_pathways': 5, 'top_pathway': 'Elevation of cytosolic Ca2+ levels'}, {'gene': 'SNAP25', 'n_pathways': 8, 'top_pathway': 'Serotonin Neurotransmitter Release Cycle'}, {'gene': 'TREM2', 'n_pathways': 4, 'top_pathway': 'Immunoregulatory interactions between a Lymphoid and a non-Lymphoid ce'}, {'gene': 'VCP', 'n_pathways': 8, 'top_pathway': 'Translesion Synthesis by POLH'}]
pd.DataFrame(pw_rows).sort_values('n_pathways', ascending=False)
| gene | n_pathways | top_pathway | |
|---|---|---|---|
| 0 | CHMP4B | 8 | Budding and maturation of HIV virion |
| 1 | HSP90AA1 | 8 | Signaling by ERBB2 |
| 7 | VCP | 8 | Translesion Synthesis by POLH |
| 5 | SNAP25 | 8 | Serotonin Neurotransmitter Release Cycle |
| 4 | P2RX7 | 5 | Elevation of cytosolic Ca2+ levels |
| 6 | TREM2 | 4 | Immunoregulatory interactions between a Lympho... |
| 2 | LRP1 | 2 | Scavenging of heme from plasma |
| 3 | NLGN1 | 1 | Neurexins and neuroligins |
5. Hypothesis ranking (15 hypotheses)¶
hyp_data = [('Extracellular Vesicle Biogenesis Modulation', 0.814), ('LRP1-Dependent Tau Uptake Disruption', 0.808), ('VCP-Mediated Autophagy Enhancement', 0.787), ('TREM2-mediated microglial tau clearance enhancement', 0.78), ('HSP90-Tau Disaggregation Complex Enhancement', 0.634), ('TREM2-mediated microglial tau clearance enhancement', 0.618), ('LRP1-Dependent Tau Uptake Disruption', 0.6), ('VCP-Mediated Autophagy Enhancement', 0.595), ('Extracellular Vesicle Biogenesis Modulation', 0.582), ('Synaptic Vesicle Tau Capture Inhibition', 0.578), ('HSP90-Tau Disaggregation Complex Enhancement', 0.575), ('P2RX7-Mediated Exosome Secretion Blockade', 0.552), ('Synaptic Vesicle Tau Capture Inhibition', 0.547), ('Trans-Synaptic Adhesion Molecule Modulation', 0.544), ('Trans-Synaptic Adhesion Molecule Modulation', 0.503)]
titles = [h[0] for h in hyp_data][::-1]
scores = [h[1] for h in hyp_data][::-1]
fig, ax = plt.subplots(figsize=(10, max(8, len(titles)*0.4)))
colors = ['#ef5350' if s >= 0.6 else '#ffa726' if s >= 0.5 else '#66bb6a' for s in scores]
ax.barh(range(len(titles)), scores, color=colors)
ax.set_yticks(range(len(titles))); ax.set_yticklabels(titles, fontsize=7)
ax.set_xlabel('Composite Score'); ax.set_title('Tau propagation mechanisms and therapeutic interception points')
ax.grid(axis='x', alpha=0.3)
plt.tight_layout(); plt.show()
6. Score dimension heatmap (top 10)¶
labels = ['Extracellular Vesicle Biogenesis Modulat', 'LRP1-Dependent Tau Uptake Disruption', 'VCP-Mediated Autophagy Enhancement', 'TREM2-mediated microglial tau clearance ', 'HSP90-Tau Disaggregation Complex Enhance', 'TREM2-mediated microglial tau clearance ', 'LRP1-Dependent Tau Uptake Disruption', 'VCP-Mediated Autophagy Enhancement', 'Extracellular Vesicle Biogenesis Modulat', 'Synaptic Vesicle Tau Capture Inhibition']
matrix = np.array([[0, 0, 0, 0, 0, 0, 0.77, 0, 0], [0, 0, 0, 0.8, 0, 0, 0.68, 0, 0], [0, 0, 0, 0, 0, 0, 0.78, 0, 0], [0, 0, 0, 0, 0, 0, 0.65, 0, 0], [0, 0, 0, 0, 0, 0, 0.697, 0, 0], [0.4, 0.49037250748841826, 0.5265052185665123, 0.7, 0.462, 0.73, 0.55, 0.6, 0.45], [0.4, 0.46067692307692304, 0.49462153846153845, 0.7, 1.0, 0.722, 0.35, 0.55, 0.45], [0.4, 0.46359999999999996, 0.49776, 0.7, 0.56, 0.723, 0.25, 0.6, 0.6], [0.4, 0.32299999999999995, 0.3468, 0.7, 0.367, 0.685, 0.35, 0.7, 0.6], [0.4, 0.32299999999999995, 0.3468, 0.7, 0.462, 0.685, 0.25, 0.49, 0.65]])
dims = ['novelty_score', 'feasibility_score', 'impact_score', 'mechanistic_plausibility_score', 'clinical_relevance_score', 'data_availability_score', 'reproducibility_score', 'druggability_score', 'safety_profile_score']
if matrix.size:
fig, ax = plt.subplots(figsize=(10, 5))
im = ax.imshow(matrix, cmap='RdYlGn', aspect='auto', vmin=0, vmax=1)
ax.set_xticks(range(len(dims)))
ax.set_xticklabels([d.replace('_score','').replace('_',' ').title() for d in dims],
rotation=45, ha='right', fontsize=8)
ax.set_yticks(range(len(labels))); ax.set_yticklabels(labels, fontsize=7)
ax.set_title('Score dimensions — top hypotheses')
plt.colorbar(im, ax=ax, shrink=0.8)
plt.tight_layout(); plt.show()
else:
print('No score data available')
7. PubMed literature per hypothesis¶
Hypothesis 1: Extracellular Vesicle Biogenesis Modulation¶
Target genes: CHMP4B · Composite score: 0.814
Mechanistic Overview¶
Extracellular Vesicle Biogenesis Modulation starts from the claim that modulating CHMP4B within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "Background and Rationale Tau protein pathology represents a h
print('No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H003')
No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H003
Hypothesis 2: LRP1-Dependent Tau Uptake Disruption¶
Target genes: LRP1 · Composite score: 0.808
Mechanistic Overview¶
LRP1-Dependent Tau Uptake Disruption starts from the claim that modulating LRP1 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "# LRP1-Dependent Tau Uptake Disruption in Tauopathic Neurodegeneration ##
print('No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H001')
No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H001
Hypothesis 3: VCP-Mediated Autophagy Enhancement¶
Target genes: VCP · Composite score: 0.787
Mechanistic Overview¶
VCP-Mediated Autophagy Enhancement starts from the claim that modulating VCP within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview VCP-Mediated Autophagy Enhancement starts from the cl
print('No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H004')
No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H004
Hypothesis 4: TREM2-mediated microglial tau clearance enhancement¶
Target genes: TREM2 · Composite score: 0.78
Mechanistic Overview¶
TREM2-mediated microglial tau clearance enhancement starts from the claim that modulating TREM2 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "Background and Rationale Triggering receptor expressed
print('No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H002')
No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H002
Hypothesis 5: HSP90-Tau Disaggregation Complex Enhancement¶
Target genes: HSP90AA1 · Composite score: 0.634
Mechanistic Overview¶
HSP90-Tau Disaggregation Complex Enhancement starts from the claim that modulating HSP90AA1 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview HSP90-Tau Disaggregation Complex Enhan
print('No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H005')
No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H005
Hypothesis 6: TREM2-mediated microglial tau clearance enhancement¶
Target genes: TREM2 · Composite score: 0.618
TREM2-Mediated Microglial Reprogramming for Tau Clearance in Alzheimer's Disease
Overview: Microglia as Tau Propagators vs. Tau Clearers
TREM2 (Triggering Receptor Expressed on Myeloid cells 2) is a microglial surface receptor that regulates phagocytic activity, metabolic fitness, and infl
print('No PubMed results for hypothesis h-b234254c')
No PubMed results for hypothesis h-b234254c
Hypothesis 7: LRP1-Dependent Tau Uptake Disruption¶
Target genes: LRP1 · Composite score: 0.6
Overview
LRP1 (Low-density lipoprotein receptor-related protein 1) functions as a critical gateway receptor mediating the cellular internalization of pathological tau species in Alzheimer's disease. This therapeutic hypothesis proposes developing selective small molecule inhibitors targeting th
print('No PubMed results for hypothesis h-4dd0d19b')
No PubMed results for hypothesis h-4dd0d19b
Hypothesis 8: VCP-Mediated Autophagy Enhancement¶
Target genes: VCP · Composite score: 0.595
Molecular Mechanism and Rationale
The valosin-containing protein (VCP), also known as p97, represents a critical hexameric AAA+ ATPase that orchestrates multiple cellular quality control pathways, including autophagy, endoplasmic reticulum-associated degradation (ERAD), and proteasomal degradat
print('No PubMed results for hypothesis h-18a0fcc6')
No PubMed results for hypothesis h-18a0fcc6
Hypothesis 9: Extracellular Vesicle Biogenesis Modulation¶
Target genes: CHMP4B · Composite score: 0.582
Molecular Mechanism and Rationale¶
The endosomal sorting complex required for transport III (ESCRT-III) represents a critical molecular machinery governing the final stages of extracellular vesicle (EV) biogenesis, particularly the formation of multivesicular bodies (MVBs) and subsequent exos
print('No PubMed results for hypothesis h-55ef81c5')
No PubMed results for hypothesis h-55ef81c5
Hypothesis 10: Synaptic Vesicle Tau Capture Inhibition¶
Target genes: SNAP25 · Composite score: 0.578
Molecular Mechanism and Rationale
The synaptic vesicle tau capture inhibition hypothesis centers on the critical role of SNAP25 (Synaptosome-Associated Protein of 25 kDa) in facilitating pathological tau protein uptake at presynaptic terminals during synaptic vesicle recycling processes. SNAP25
print('No PubMed results for hypothesis h-73e29e3a')
No PubMed results for hypothesis h-73e29e3a
Hypothesis 11: HSP90-Tau Disaggregation Complex Enhancement¶
Target genes: HSP90AA1 · Composite score: 0.575
Molecular Mechanism and Rationale¶
The heat shock protein 90 (HSP90) chaperone system represents a critical cellular machinery for protein folding, stability, and quality control. HSP90AA1, the inducible cytoplasmic isoform of HSP90, exhibits distinct conformational states that can be alloste
print('No PubMed results for hypothesis h-0f00fd75')
No PubMed results for hypothesis h-0f00fd75
Hypothesis 12: P2RX7-Mediated Exosome Secretion Blockade¶
Target genes: P2RX7 · Composite score: 0.552
Mechanistic Overview¶
P2RX7-Mediated Exosome Secretion Blockade starts from the claim that modulating P2RX7 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "# P2RX7-Mediated Exosome Secretion Blockade: A Therapeutic Target in
print('No PubMed results for hypothesis h-1333080b')
No PubMed results for hypothesis h-1333080b
Hypothesis 13: Synaptic Vesicle Tau Capture Inhibition¶
Target genes: SNAP25 · Composite score: 0.547
Mechanistic Overview¶
Synaptic Vesicle Tau Capture Inhibition starts from the claim that modulating SNAP25 within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "## Mechanistic Overview Synaptic Vesicle Tau Capture Inhibition start
print('No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H006')
No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H006
Hypothesis 14: Trans-Synaptic Adhesion Molecule Modulation¶
Target genes: NLGN1 · Composite score: 0.544
Mechanistic Overview¶
Trans-Synaptic Adhesion Molecule Modulation starts from the claim that modulating NLGN1 within the disease context of Alzheimer's Disease can redirect a disease-relevant process. The original description reads: "Molecular Mechanism and Rationale The neurexin-neuroligin tr
print('No PubMed results for hypothesis h-fdaae8d9')
No PubMed results for hypothesis h-fdaae8d9
Hypothesis 15: Trans-Synaptic Adhesion Molecule Modulation¶
Target genes: NLGN1 · Composite score: 0.503
Background and Rationale
Synaptic dysfunction represents one of the earliest pathological hallmarks in neurodegenerative diseases, often preceding neuronal death by years or decades. The integrity of synaptic connections relies heavily on trans-synaptic adhesion molecules, which serve as molecu
print('No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H007')
No PubMed results for hypothesis SDA-2026-04-02-gap-tau-prop-20260402003221-H007
8. Knowledge graph edges (126 total)¶
edge_data = [{'source': 'tau_propagation', 'relation': 'contributes_to', 'target': 'alzheimer_disease', 'strength': 0}, {'source': 'SDC4', 'relation': 'mediates', 'target': 'protein_aggregate_uptake', 'strength': 0}, {'source': 'HS3ST1', 'relation': 'facilitates', 'target': 'tau_internalization', 'strength': 0}, {'source': 'CTSD', 'relation': 'catalyzes', 'target': 'lysosomal_degradation', 'strength': 0.85}, {'source': 'TREM2', 'relation': 'mediates', 'target': 'microglial_activation', 'strength': 0.85}, {'source': 'LAMP1', 'relation': 'stabilizes', 'target': 'lysosomal_membrane', 'strength': 0.82}, {'source': 'diseases-corticobasal-syndrome', 'relation': 'investigated_in', 'target': 'SDA-2026-04-02-gap-tau-prop-20', 'strength': 0.75}, {'source': 'LRP1', 'relation': 'Deploy selective small mo', 'target': 'lrp1_tau_interaction', 'strength': 0.72}, {'source': 'NLGN1', 'relation': 'regulates', 'target': 'Trans-Synaptic Adhesion Molecu', 'strength': 0.7}, {'source': 'CHMP4B', 'relation': 'regulates', 'target': 'Extracellular Vesicle Biogenes', 'strength': 0.7}, {'source': 'SNAP25', 'relation': 'regulates', 'target': 'Synaptic Vesicle Tau Capture I', 'strength': 0.7}, {'source': 'HSP90AA1', 'relation': 'regulates', 'target': 'HSP90-Tau Disaggregation Compl', 'strength': 0.7}, {'source': 'TREM2', 'relation': 'regulates', 'target': 'TREM2-mediated microglial tau ', 'strength': 0.7}, {'source': 'LRP1', 'relation': 'regulates', 'target': 'LRP1-Dependent Tau Uptake Disr', 'strength': 0.7}, {'source': 'VCP', 'relation': 'regulates', 'target': 'VCP-Mediated Autophagy Enhance', 'strength': 0.7}, {'source': 'TREM2', 'relation': 'Activate TREM2 signaling ', 'target': 'trem2_tau_interaction', 'strength': 0.67}, {'source': 'lrp1_tau_interaction', 'relation': 'LRP1 modulates tau_propag', 'target': 'tau_propagation', 'strength': 0.65}, {'source': 'P2RX7', 'relation': 'regulates', 'target': 'exosome_secretion', 'strength': 0.65}, {'source': 'HSP90-Tau Disaggregation Compl', 'relation': 'therapeutic_target', 'target': "Alzheimer's Disease", 'strength': 0.65}, {'source': 'Trans-Synaptic Adhesion Molecu', 'relation': 'therapeutic_target', 'target': "Alzheimer's Disease", 'strength': 0.65}, {'source': 'Extracellular Vesicle Biogenes', 'relation': 'therapeutic_target', 'target': "Alzheimer's Disease", 'strength': 0.65}, {'source': 'Synaptic Vesicle Tau Capture I', 'relation': 'therapeutic_target', 'target': "Alzheimer's Disease", 'strength': 0.65}, {'source': 'VCP-Mediated Autophagy Enhance', 'relation': 'therapeutic_target', 'target': "Alzheimer's Disease", 'strength': 0.65}, {'source': 'LRP1-Dependent Tau Uptake Disr', 'relation': 'therapeutic_target', 'target': "Alzheimer's Disease", 'strength': 0.65}, {'source': 'TREM2-mediated microglial tau ', 'relation': 'therapeutic_target', 'target': "Alzheimer's Disease", 'strength': 0.65}]
if edge_data:
pd.DataFrame(edge_data).head(25)
else:
print('No KG edge data available')
Caveats¶
This notebook uses real Forge tool calls from live APIs:
- Enrichment is against curated gene-set libraries (Enrichr)
- STRING/Reactome/HPA/MyGene reflect curated knowledge
- PubMed literature is search-relevance ranked, not systematic review
The cached evidence bundle is the minimum viable real-data analysis for this topic.