anatomical_structure

BBB

Entity Detail — Knowledge Graph Node

Understanding Entity Pages

This page aggregates everything SciDEX knows about BBB: 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.

146Connections
30Hypotheses
13Analyses
50Outgoing
34Incoming
8Experiments
20Debates

Summary

BBB is an entity related to neurodegeneration research. Key relationships include: co discussed, associated with, regulates. Associated with ALS, ALZHEIMER'S DISEASE, PARKINSON'S DISEASE. Connected to 70 entities in the SciDEX knowledge graph.

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Wiki Pages (8)

Knowledge base pages for this entity

Canonical Page

neurovascular-dysfunction

mechanism · 3647 words

BBB-Transcytosis Shuttle for Episodic CNS PROTAC Delivery

idea · 2404 words

BBB Transcytosis Shuttle for Episodic CNS PROTAC Delivery

idea · 1935 words

Focused Ultrasound BBB Opening

therapeutic · 1647 words

Brain Shuttle Technologies: BBB Delivery Platforms

technology · 1508 words

AD BBB Modulation and Transport Technologies

company · 1367 words

Pathway Diagram

graph TD
    BBB["Blood-Brain Barrier"] -->|"Components"| EC["Endothelial Cells"]
    BBB -->|"Components"| TJ["Tight Junctions"]
    BBB -->|"Components"| Pericytes["Pericytes"]
    BBB -->|"Components"| Astrocytes["Astrocytic End-feet"]
    EC -->|"Express"| Transporters["ABC Transporters"]
    TJ -->|"Seal"| Gaps["Paracellular Gaps"]
    BBB -->|"Regulates"| Influx["Nutrient Influx"]
    BBB -->|"Regulates"| Efflux["Waste Efflux"]
    Aging -.Causes.-> Breakdown["BBB Breakdown"]
    Breakdown -.Allows.-> Entry["Toxin Entry"]
    Entry -.Contributes to.-> ND["Neurodegeneration"]

Outgoing (112)

TargetRelationTypeStr
MMP2co_discussedentity0.50
MMP9co_discussedentity0.50
PERICYTEco_discussedentity0.50
PERICYTESco_discussedentity0.50
HIPPOCAMPUSco_discussedentity0.50

Incoming (34)

SourceRelationTypeStr
35361905is vital for maintainingpaper0.90
35361905preventspaper0.90
35361905breaks down withpaper0.90
CLDN5regulatesgene0.90
autophagyalleviatesprocess0.90

Targeting Hypotheses (30)

Hypotheses where this entity is a therapeutic target

HypothesisScoreDiseaseAnalysis
Plasma NfL Elevation Secondary to BBB-Associated Transport D 0.940 - What blood-brain barrier permeability ch
VHH-Fc Fusion Constructs with Separate BBB-Targeting Moiety 0.750 neurodegeneration Blood-brain barrier antibody transport m
Matrix Metalloproteinase-9 and TIMP-1 Ratio in Peripheral Bl 0.735 - What blood-brain barrier permeability ch
Synthetic Biology BBB Endothelial Cell Reprogramming 0.727 neurodegeneration Blood-brain barrier transport mechanisms
Calcium-Dependent S100B Release from Astrocyte End-Feet as a 0.725 - What blood-brain barrier permeability ch
APOE4-driven pericyte injury/senescence is an upstream drive 0.720 neurodegeneration Does pericyte senescence drive BBB break
Gut-BBB Axis: Tributyrin/Butyrate HDAC Inhibition Epigenetic 0.712 - Blood-brain barrier permeability changes
Plasma Claudin-5 Proteolytic Fragments Distinguish Paracellu 0.705 - What blood-brain barrier permeability ch
Endothelial NRF2 Activation as a Master Switch for Post-CA B 0.689 neurodegeneration View
Soluble LRP1 (sLRP1) Ectodomain Shedding as a Blood-Based In 0.680 - What blood-brain barrier permeability ch
CSF/Serum NfL Ratio Discriminates Active Transcytosis from P 0.665 - What blood-brain barrier permeability ch
GFAP-Bearing Circulating Extracellular Vesicles Originating 0.665 - What blood-brain barrier permeability ch
BBB Integrity Loss Defines Absolute Therapeutic Window Closu 0.660 neurodegeneration What is the optimal therapeutic window f
Time-Dependent BBB Repair Strategy 0.656 - Blood-brain barrier tight junction disru
S100B as Active Pathogenic BBB-Disrupting Signal via RAGE/NF 0.647 - Blood-brain barrier permeability changes
Endothelial miR-181c-5p Upregulation Drives Claudin-5 Repres 0.645 - What blood-brain barrier permeability ch
Circulating Endothelial Microvesicles Expressing Degraded Cl 0.640 - What blood-brain barrier permeability ch
Matrix Metalloproteinase-9 and TIMP-1 Ratio in Peripheral Bl 0.640 - What blood-brain barrier permeability ch
Pericyte senescence is sufficient to weaken the BBB even wit 0.630 neurodegeneration Does pericyte senescence drive BBB break
Integrated Blood Panel of sPDGFRβ, sTM, and Circulating micr 0.625 - What blood-brain barrier permeability ch
GFAP Perivascular Redistribution (End-Feet Retraction) as Tr 0.594 - Blood-brain barrier permeability changes
P2RY12-driven autophagy impairment in cerebral VSMCs mediate 0.585 neurodegeneration How does P2RY12-mediated VSMC dysfunctio
Vascular and Perivascular Cell Type Vulnerability: BBB Integ 0.566 neurodegeneration Cell type vulnerability debate in Alzhei
BBB leak induces secondary pericyte senescence through TGF-b 0.560 neurodegeneration Does pericyte senescence drive BBB break
Fusing IGFBPL1 to IGF-1 for Receptor-Mediated BBB Transcytos 0.552 drug delivery Can IGFBPL1 therapeutics effectively cro
Systemic IL-6–STAT3–Hepatic C3 Axis and BBB-Mediated Complem 0.540 neuroinflammation How does sevoflurane-induced NF-κB activ
Piezoelectric Nanochannel BBB Disruption 0.519 neurodegeneration Blood-brain barrier transport mechanisms
CSF p-tau217 Normalization Requires Intact Synaptic Function 0.515 neurodegeneration -
SIRT1-Mediated Epigenetic Restoration of MFSD2A Expression R 0.500 neuropharmacology What determines blood-brain barrier pene
Soluble LRP1 Fragments Serve as Blood-Based Indicators of Im 0.485 - What blood-brain barrier permeability ch

Mentioning Analyses (13)

Scientific analyses that reference this entity

Blood-brain barrier permeability changes as early biomarkers for neurodegenerati

neurodegeneration | 2026-04-26 | 5 hypotheses Top: 0.712

Can ferroptosis inhibitors prevent BBB disruption and edema formation after card

neurodegeneration | 2026-04-25 | 7 hypotheses Top: 0.760

Blood-brain barrier tight junction disruption by neuroinflammatory cytokines

neurodegeneration | 2026-04-16 | 7 hypotheses Top: 0.919

How do synthetic EVs achieve brain-specific targeting while avoiding reticuloend

drug delivery | 2026-04-15 | 0 hypotheses

How does engineered C. butyricum cross the blood-brain barrier to directly bind

neurodegeneration | 2026-04-15 | 2 hypotheses Top: 0.699

Experiments (8)

Experimental studies targeting or related to this entity

ExperimentTypeDiseaseScoreFeasibilityModelStatusEst. Cost
s:** - Compare brain penetration in FcRn+/+ vs FcRn-/- mice with engin falsification Neuroinflammation 0.400 0.50 mouse proposed $200,000
s:** - Compare uptake with/without magnetic particles using tight junc falsification Neurodegeneration 0.400 0.50 cell_line proposed $120,000
AAV Serotype Comparison for LRRK2 Knockdown in PD Gene Therapy validation Parkinson's Disease 0.400 0.50 mouse proposed $280,000
AAV Serotype Comparison for LRRK2 Knockdown in PD validation Parkinson's Disease 0.400 0.50 mouse proposed $280,000
Blood-Based Biomarker Panel for Early AD Detection clinical Alzheimer's Disease 0.400 0.50 cell_line proposed $220,000
Blood-Brain Barrier Aging and Neurodegeneration — From Leakage to Neur validation Neurodegeneration 0.400 0.50 cell_line proposed $130,000
Gene Therapy: AAV Serotype Comparison for LRRK2 Knockdown validation Parkinson's Disease 0.400 0.50 mouse proposed $280,000
Vascular Contribution to Alzheimer's Disease — Beyond Amyloid validation Alzheimer's Disease 0.400 0.50 human proposed $2,280,000

Related Papers (11)

Scientific publications cited in analyses involving this entity

Title & PMIDAuthorsJournalYearCitations
Author Correction: Crystal structure of active CDK4-cyclin D and mechanistic bas [PMID:36577758] Gharbi Severine Isabelle; Pelletier Laur NPJ breast cancer 2022 0
The biology of beauty sleep. [PMID:35256810] Jordan A Anderson; Jenny Tung Nature ecology & evolution 2022 0
Cathepsin S is a novel target for age-related dry eye. [PMID:34910926] ["Yu Z", "Li J", "Govindarajan G", "Hamm Experimental eye research 2022 0
Intrinsic functional neuron-type selectivity of transcranial focused ultrasound [PMID:33947867] ["Yu K", "Niu X", "Krook-Magnuson E", "H Nature communications 2021 0
Warning wristbands for patients with intra-ocular gas [PMID:31745326] Naderi Khayam; Masoero Pietro; Karthikey Eye 2020 0
NK cells for cancer immunotherapy. [PMID:31907401] ["Shimasaki N", "Jain A", "Campana D"] Nature reviews. Drug discovery 2020 0
Potent and specific MTH1 inhibitors targeting gastric cancer. [PMID:31164636] ["Zhou W", "Ma L", "Yang J", "Qiao H", " Cell death & disease 2019 0
Clinical factors associated with worse quality-of-life scores in United States t [PMID:30898373] ["Goswami S", "Peipert B", "Mongelli M", Surgery 2019 0
Arabidopsis Duodecuple Mutant of PYL ABA Receptors Reveals PYL Repression of ABA [PMID:29898403] ["Zhao Y", "Zhang Z", "Gao J", "Wang P", Cell reports 2018 0
Cell transplantation therapy for spinal cord injury. [PMID:28440805] ["Assinck P", "Duncan G", "Hilton B", "P Nature neuroscience 2017 0
Dysfunction of lipid sensor GPR120 leads to obesity in both mouse and human. [PMID:22343897] ["Ichimura A", "Hirasawa A", "Poulain-Go Nature 2012 0

Debates (20)

Multi-agent debates referencing this entity

Hypothesis debate: Metabolic Reprogramming to Reverse Senescence

closed · Rounds: 4 · Score: 0.00 · 2026-04-27

What is the evidence that blood-brain barrier (BBB) permeability changes serve a

closed · Rounds: 4 · Score: 1.00 · 2026-04-26

Hypothesis debate: SASP Modulation Rather Than Cell Elimination

closed · Rounds: 4 · Score: 0.50 · 2026-04-26

Hypothesis debate: Metabolic Reprogramming to Reverse Senescence

closed · Rounds: 4 · Score: 0.50 · 2026-04-26

Hypothesis debate: Metabolic Reprogramming to Reverse Senescence

closed · Rounds: 4 · Score: 0.50 · 2026-04-26

Blood-brain barrier permeability changes as early biomarkers for neurodegenerati

closed · Rounds: 7 · Score: 0.50 · 2026-04-26

Can ferroptosis inhibitors prevent BBB disruption and edema formation after card

closed · Rounds: 4 · Score: 0.73 · 2026-04-25

Should PEA-PPARA endocannabinoid signaling be prioritized as a therapeutic strat

closed · Rounds: 4 · Score: 0.76 · 2026-04-23

Should metabolic reprogramming via SIRT1/NAD+/PGC-1alpha axis be prioritized to

closed · Rounds: 4 · Score: 0.81 · 2026-04-23

The debate highlighted IGFBPL1's potential as a microglial master regulator but

closed · Rounds: 4 · Score: 0.69 · 2026-04-22

Related Research

Hypotheses and analyses mentioning BBB in their description or question text

APOE4-driven pericyte injury/senescence is an upstream driver of early BBB break

Score: 0.720 · neurodegeneration · 2026-04-25

In APOE4 contexts, reduced LRP1 signaling in PDGFRB+ pericytes permits activation of the PPIA/CypA-MMP9 axis, leading to

Gut-BBB Axis: Tributyrin/Butyrate HDAC Inhibition Epigenetically Restores Claudi

Score: 0.712 · unknown disease · 2026-04-26

Gut dysbiosis-driven butyrate deficit causes HDAC-mediated silencing of CLDN5 in brain endothelial cells; tributyrin pro

Plasma Claudin-5 Proteolytic Fragments Distinguish Paracellular BBB Breakdown fr

Score: 0.705 · unknown disease · 2026-04-26

Claudin-5 is the most abundant tight junction protein in brain endothelial cells and is specifically degraded during ear

Endothelial NRF2 Activation as a Master Switch for Post-CA BBB Protection

Score: 0.689 · neurodegeneration · 2026-04-17

## Mechanistic Overview Endothelial NRF2 Activation as a Master Switch for Post-CA BBB Protection starts from the claim

Soluble LRP1 (sLRP1) Ectodomain Shedding as a Blood-Based Indicator of Impaired

Score: 0.680 · unknown disease · 2026-04-26

LRP1 mediates Aβ export from brain to blood at the BBB. Metalloprotease-mediated shedding of the LRP1 ectodomain (sLRP1)

CSF/Serum NfL Ratio Discriminates Active Transcytosis from Passive BBB Breakdown

Score: 0.665 · unknown disease · 2026-04-26

Neurofilament light chain (NfL) released from damaged neurons requires crossing the BBB to appear in blood. Two mechanis

GFAP-Bearing Circulating Extracellular Vesicles Originating from Reactive Astroc

Score: 0.665 · unknown disease · 2026-04-26

Reactive astrocytes release GFAP-positive extracellular vesicles (Astrocyte-EVs) into circulation with end-feet retracti

BBB Integrity Loss Defines Absolute Therapeutic Window Closure

Score: 0.660 · neurodegeneration · 2026-04-22

**Molecular Mechanism and Rationale** The blood-brain barrier (BBB) represents a highly specialized neurovascular inter

Time-Dependent BBB Repair Strategy

Score: 0.656 · unknown disease · 2026-04-16

## Mechanistic Overview Time-Dependent BBB Repair Strategy starts from the claim that modulating MULTIPLE within the dis

S100B as Active Pathogenic BBB-Disrupting Signal via RAGE/NF-κB/Claudin-5 Axis

Score: 0.647 · unknown disease · 2026-04-26

S100B operates as a pathogenic DAMP in the perivascular space, binding RAGE on brain endothelial cells to trigger NF-κB-

Endothelial miR-181c-5p Upregulation Drives Claudin-5 Repression and Paracellula

Score: 0.645 · unknown disease · 2026-04-26

Circulating miR-181c-5p is upregulated in AD patients and directly targets the CLDN5 3'-UTR, suppressing claudin-5 expre

Circulating Endothelial Microvesicles Expressing Degraded Claudin-5 as Specific

Score: 0.640 · unknown disease · 2026-04-26

Endothelial cells shed microvesicles (EMVs) during activation or injury. EMVs from degenerating brain endothelium carry

Matrix Metalloproteinase-9 and TIMP-1 Ratio in Peripheral Blood as an Early Indi

Score: 0.640 · unknown disease · 2026-04-26

Elevated MMP-9/TIMP-1 ratio reflects net proteolytic activity against the BBB, causing degradation of tight junction pro

Pericyte senescence is sufficient to weaken the BBB even without classic amyloid

Score: 0.630 · neurodegeneration · 2026-04-25

Selective induction of a senescence program in adult pericytes is sufficient to impair barrier-supportive trophic signal

Integrated Blood Panel of sPDGFRβ, sTM, and Circulating microRNA-320 Predicts Pr

Score: 0.625 · unknown disease · 2026-04-26

No single biomarker fully captures the heterogeneity of early BBB dysfunction across neurodegeneration subtypes. A compo