BACE1

Understanding Entity Pages

This page aggregates everything SciDEX knows about BACE1: its mechanistic relationships (Knowledge Graph edges), hypotheses targeting it, analyses mentioning it, and supporting scientific papers. The interactive graph below shows its immediate neighbors. All content is AI-synthesized from peer-reviewed literature.

Summary

Beta-site APP Cleaving Enzyme 1 (BACE1) is the rate-limiting enzyme in amyloid-beta production, performing the first cleavage of APP in the amyloidogenic pathway. BACE1 activity increases with age and in AD brains, driven by oxidative stress, inflammation, and impaired trafficking. BACE1 inhibitors were pursued as AD therapeutics but clinical trials (verubecestat, atabecestat, elenbecestat) failed due to cognitive worsening and synaptic toxicity, likely from inhibiting BACE1 cleavage of neuregulin-1 and other substrates critical for myelination and synaptic function. BACE1 knockout mice show seizures, hypomyelination, and behavioral deficits. Current approaches focus on partial BACE1 inhibition or substrate-selective strategies to reduce Abeta without off-target effects.

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flowchart TD
    BACE1["BACE1<br/>beta-secretase"]
    APP["APP<br/>Amyloid Precursor<br/>Protein"]
    Abeta["Abeta peptides<br/>Amyloid Beta"]
    AD["Alzheimer's<br/>Disease"]
    ALS["ALS"]
    MS["Multiple<br/>Sclerosis"]
    
    TNF["TNF-alpha<br/>Pro-inflammatory<br/>Cytokine"]
    IL6["IL-6<br/>Pro-inflammatory<br/>Cytokine"]
    NFKB["NF-kappaB<br/>Transcription<br/>Factor"]
    JAK2_STAT1["JAK2-STAT1<br/>Signaling<br/>Pathway"]
    C1Q["C1Q<br/>Complement<br/>Protein"]
    
    AMPK["AMPK<br/>Energy Sensor"]
    Liquiritigenin["Liquiritigenin<br/>Natural Inhibitor"]
    Ginsenosides["Ginsenosides Rh4<br/>Natural Inhibitor"]
    BACE1_siRNA["BACE1 siRNA<br/>Therapeutic<br/>Inhibitor"]
    
    Neuroinflammation["Neuroinflammation"]
    Aging["Aging<br/>Process"]
    
    TNF --|"activates"|--> BACE1
    IL6 --|"activates"|--> BACE1
    NFKB --|"activates"|--> BACE1
    JAK2_STAT1 --|"regulates"|--> BACE1
    C1Q --|"regulates"|--> BACE1
    
    BACE1 --|"cleaves"|--> APP
    APP --|"produces"|--> Abeta
    BACE1 --|"promotes"|--> Abeta
    
    Abeta --|"drives"|--> AD
    BACE1 --|"associated_with"|--> AD
    BACE1 --|"therapeutic_target"|--> ALS
    BACE1 --|"therapeutic_target"|--> MS
    
    AMPK --|"inhibits"|--> BACE1
    Liquiritigenin --|"inhibits"|--> BACE1
    Ginsenosides --|"inhibits"|--> BACE1
    BACE1_siRNA --|"inhibits"|--> BACE1
    
    BACE1 --|"biomarker_for"|--> Neuroinflammation
    BACE1 --|"biomarker_for"|--> Aging
    
    style BACE1 fill:#006494
    style AMPK fill:#1b5e20
    style Liquiritigenin fill:#1b5e20
    style Ginsenosides fill:#1b5e20
    style BACE1_siRNA fill:#1b5e20
    style TNF fill:#ef5350
    style IL6 fill:#ef5350
    style Abeta fill:#ef5350
    style AD fill:#5d4400
    style ALS fill:#5d4400
    style MS fill:#5d4400
    style Neuroinflammation fill:#5d4400
    style NFKB fill:#4a1a6b
    style JAK2_STAT1 fill:#4a1a6b
    style C1Q fill:#4a1a6b