Cited by 3,437Barrier Structure and Function StudiesDrug Transport and Resistance MechanismsExtracellular vesicles in disease

The blood-brain barrier

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Daneman, Richard, Prat, Alexandre·2015·Cold Spring Harbor Perspectives in Biology

Abstract

Blood vessels are critical to deliver oxygen and nutrients to all of the tissues and organs throughout the body. The blood vessels that vascularize the central nervous system (CNS) possess unique properties, termed the blood-brain barrier, which allow these vessels to tightly regulate the movement of ions, molecules, and cells between the blood and the brain. This precise control of CNS homeostasis allows for proper neuronal function and also protects the neural tissue from toxins and pathogens, and alterations of these barrier properties are an important component of pathology and progression of different neurological diseases. The physiological barrier is coordinated by a series of physical, transport, and metabolic properties possessed by the endothelial cells (ECs) that form the walls of the blood vessels, and these properties are regulated by interactions with different vascular, immune, and neural cells. Understanding how these different cell populations interact to regulate the barrier properties is essential for understanding how the brain functions during health and disease.

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Crossref · 10.1101/cshperspect.a020412

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  • CNS vessels at the levels of arteriole-capillary-venules are non-fenestrated and continuous and control the exchange of molecules, ions and cells between the blood and the brain.

    “CNS vessels, at the levels of arteriole–capillary–venules, are non-fenestrated and continuous; they are able to control the exchange of molecules, ions and cells between the blood and the brain [1].”

    From Nanoemulsions for “Nose-to-Brain” Drug Delivery (2019) · cites this paper as [1]

    The Blood-Brain Barrier section states that CNS vessels are continuous and nonfenestrated and tightly regulate movement of molecules, ions, and cells between blood and the CNS. It defines the relevant microvasculature as capillaries and postcapillary venules, however, rather than explicitly extending those barrier properties to arterioles. The Endothelial Cells section also identifies fenestrated CNS capillaries in circumventricular organs, so the statement is too broad if read as applying to every CNS vessel. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Carrier-mediated transport enables carbohydrates, amino acids, monocarboxylic acids, hormones, fatty acids, nucleotides, inorganic ions, amines, choline, and vitamins to cross the blood-brain barrier via substrate-specific transporters.

    “Carrier-mediated transport (CMT) enables solutes such as carbohydrates, amino acids (AA), monocarboxylic acids, hormones, fatty acids, nucleotides, inorganic ions, amines, choline, and vitamins to cross the BBB via substrate-specific transporters (2, 128, 460, 682, 692, 693).”

    From Blood-Brain Barrier: From Physiology to Disease and Back (2019) · cites this paper as [128]

    The transporters passage (section labeled “Tight Junctions”; page unavailable) describes substrate-specific solute carriers for glucose, lactate and pyruvate, and amino acids, supporting the claim for carbohydrates, monocarboxylic acids, and amino acids. The copy does not establish carrier-mediated BBB crossing for the full additional list, including hormones, fatty acids, nucleotides, choline, and vitamins; its discussion of ion transport does not establish that entire claim either. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Sodium-dependent multivitamin transporter (SMVT) transports multivitamins from blood to brain.

    “and sodium-dependent multivitamin transporter (SMVT) transports multivitamins from blood-to-brain (2, 128, 460, 682).”

    From Blood-Brain Barrier: From Physiology to Disease and Back (2019) · cites this paper as [128]

    The Endothelial Cells and Tight Junctions sections state that nutrient transporters deliver specific nutrients from blood into the CNS. They do not identify sodium-dependent multivitamin transporter (SMVT) or say that it transports multivitamins, so the transporter-specific claim is unsupported by this copy. (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • Collagen IV and laminin localization matches in vivo organization where pericytes are embedded within the basement membrane.

    “matches in vivo organization where pericytes are embedded within the basement membrane [1].”
  • The blood-brain barrier is an active interface that controls the CNS microenvironment, communicates with CNS cells, responds to pathological conditions and can become a cause of disease progression.

    “BBB is not only a cellular self-defense barrier but also an active interface that strictly controls the CNS microenvironment, allowing its normal neuronal functions. BBB cells are able to communicate with CNS cells and they adapt their behavior to the needs of the CNS, responding to pathological conditions and sometimes becoming a cause of the progression of the disease [1].”

    From Nanoemulsions for “Nose-to-Brain” Drug Delivery (2019) · cites this paper as [1]

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Authors
Daneman, R., & Prat, A.
Affiliations
  • University of California San Diego (US)
  • Université de Montréal (CA)
Venue
Cold Spring Harbor Perspectives in Biology
Published
2015-01
Volume
7
Issue
1
Pages
a020412
ISSN
1943-0264 (ISSN-L)
OpenAlex
W2125411036
Cited by
3,437
References
161
Citations by year
2026: 331 · 2025: 405 · 2024: 455 · 2023: 463 · 2022: 482 · 2021: 433 · 2020: 310 · 2019: 285 · 2018: 107 · 2017: 49 · 2016: 30 · 2015: 30 · 2014: 26 · 2013: 24 · 2012: 3
Type
posted content
Language
en
Open access
Locations
  • Cold Spring Harbor Perspectives in Biology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
Keywords
blood-brain barrier, endothelial cells, CNS homeostasis, barrier permeability, blood-brain barrier dysfunction, neurological disorders, neuroimmune interactions
MeSH terms
Astrocytes, Basement Membrane, Blood-Brain Barrier, Central Nervous System Diseases, Homeostasis, Humans, Muscle, Smooth, Vascular, Tight Junctions, Endothelial Cells

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