scholarly journals Both sides of the story How bacteria transfer through the blood–brain barrier?

2021 ◽  
Vol 2 (3) ◽  
pp. 4682-4692
Author(s):  
Adrian Macion
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Blood Brain Barrier ◽  
Experimental Research ◽  
Bacterial Translocation ◽  
Brain Barrier ◽  
Bacterial Invasion ◽  
Complete Understanding ◽  
Blood Brain ◽  
Cytoskeleton Rearrangements

ABSTRACT Infections of central nervous system (CNS) still represent an important cause of mortality although globally abundance of antibiotics usage. Sepsis, bacterial invasion and microbial transversal of the Blood–Brain Barrier (BBB) are required to infect CNS. The latest research showed up that bacterial translocation through the BBB includes cytoskeleton rearrangements. Three different mechanism were described: paracellular, transcellular and Trojan-horse mechanism (in phagocytes). The consequences may be dramatic – disruptions of structure and loss of functionality of the BBB causing increased permeability, inflammatory and encephalopathy. Further experimental research should lead us to gain complete understanding of the host-bacteria interaction within microbial transversal of the BBB.

scholarly journals Central nervous system delivery of molecules across the blood-brain barrier

2021 ◽  
pp. 104952
Author(s):  
Fabien Gosselet ◽  
Rodrigo Azevedo Loiola ◽  
Anna Roig ◽  
Anna Rosell ◽  
Maxime Culot
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Blood Brain Barrier ◽  
Brain Barrier ◽  
Blood Brain

Understanding the Physiology of the Blood-Brain Barrier: In Vitro Models

Physiology ◽  
1998 ◽  
Vol 13 (6) ◽  
pp. 287-293 ◽  
Author(s):  
Gerald A. Grant ◽  
N. Joan Abbott ◽  
Damir Janigro
Keyword(s):  
Central Nervous System ◽  
Tissue Culture ◽  
Nervous System ◽  
Blood Brain Barrier ◽  
In Vitro Models ◽  
Brain Barrier ◽  
Blood Brain ◽  
Brain Tissue Culture ◽  
The Brain

Endothelial cells exposed to inductive central nervous system factors differentiate into a blood-brain barrier phenotype. The blood-brain barrier frequently obstructs the passage of chemotherapeutics into the brain. Tissue culture systems have been developed to reproduce key properties of the intact blood-brain barrier and to allow for testing of mechanisms of transendothelial drug permeation.

scholarly journals Permeability of the Blood-Brain Barrier and Transport of Nanobodies Across the Blood-Brain Barrier

2018 ◽  
Vol 62 (1) ◽  
pp. 59-66 ◽  
Author(s):  
I. Širochmanová ◽  
Ľ. Čomor ◽  
E. Káňová ◽  
I. Jiménez-Munguía ◽  
Z. Tkáčová ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Blood Brain Barrier ◽  
Chemical Properties ◽  
Cost Effective ◽  
Central Nervous System Disease ◽  
Brain Barrier ◽  
Promising Alternative ◽  
Blood Brain ◽  
The Central Nervous System

Abstract The presence of a blood-brain barrier (BBB) and a blood-cerebrospinal fluid barrier presents animmense challenge for effective delivery of therapeutics to the central nervous system. Many potential drugs, which are effective at their site of action, have failed due to the lack of distribution in sufficient quantity to the central nervous system (CNS). In consequence, many diseases of the central nervous system remain undertreated. Antibodies, IgG for example, are difficult to deliver to the CNS due to their size (~155 kDa), physico-chemical properties and the presence of Fc receptor on the blood-brain barrier. Smaller antibodies, like the recently developed nanobodies, may overcome the obstacle of the BBB and enter into the CNS. The nanobodies are the smallest available antigen-binding fragments harbouring the full antigenbinding capacity of conventional antibodies. They represent a new generation of therapeutics with exceptional properties, such as: recognition of unique epitopes, target specificity, high affinity, high solubility, high stability and high expression yields in cost-effective recombinant production. Their ability to permeate across the BBBmakes thema promising alternative for central nervous system disease therapeutics. In this review, we have systematically presented different aspects of the BBB, drug delivery mechanisms employed to cross the BBB, and finally nanobodies — a potential therapeutic molecule against neuroinfections.

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