2006
DOI: 10.1016/j.bmc.2005.07.054
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β-Cyclodextrin derivatives that inhibit anthrax lethal toxin

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Cited by 45 publications
(41 citation statements)
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References 31 publications
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“…6-10 and references therein). Protective antigen (83 kDa, PA 83 ) binds to specific cellular receptors, and after being cleaved by a furin-like protease of the host cell into two fragments, PA 20 and PA 63 , the latter self-assembles to form a ring-shaped heptameric prepore (11) that can simultaneously bind up to three molecules of lethal factor (LF) and͞or edema factor (EF). The complex is then endocytosed and trafficked to an intracellular compartment where acidic conditions induce conversion of the prepore to a pore (9), and EF and LF are translocated into the cytosol presumably by using the PA 63 channel as a tunnel (12,13).…”
mentioning
confidence: 99%
See 1 more Smart Citation
“…6-10 and references therein). Protective antigen (83 kDa, PA 83 ) binds to specific cellular receptors, and after being cleaved by a furin-like protease of the host cell into two fragments, PA 20 and PA 63 , the latter self-assembles to form a ring-shaped heptameric prepore (11) that can simultaneously bind up to three molecules of lethal factor (LF) and͞or edema factor (EF). The complex is then endocytosed and trafficked to an intracellular compartment where acidic conditions induce conversion of the prepore to a pore (9), and EF and LF are translocated into the cytosol presumably by using the PA 63 channel as a tunnel (12,13).…”
mentioning
confidence: 99%
“…In the particular case of heptameric pores, it was found that the pore of staphylococcal ␣-hemolysin can be partially blocked by ␤-cyclodextrin (17) and that tetraalkylammonium cations block the ion conductance of the PA 63 channel (18), interacting with the negative charges of the PA 63 pore lumen (11,19). Guided by these findings, several cationic ␤-cyclodextrin derivatives as candidate antitoxins were customsynthesized (20). Here we describe the protective action of one of these compounds, per-6-(3-aminopropylthio)-␤-cyclodextrin (AmPr␤CD), demonstrated on both single-molecule and wholeorganism levels.…”
mentioning
confidence: 99%
“…Az újszerû antibiotikus terápiás elvet a 8. ábra szemlélteti. 21 8. ábra A lépfene (Anthrax) bacillus fertõzõképessége csökken a bakteriális toxinok transzportjának cilodextrin által történõ gátlásával.…”
Section: Különleges Ciklodextrin-fehérje Kölcsönhatások: Ciklodextrinunclassified
“…(9. ábra) 9. ábra Az alfa hemolizin és benne ülõ ciklodextrin sematikus szerkezete A: szembõl nézve, B: felülrõl nézve 21 .…”
Section: 23unclassified
“…Compounds 1 to 20 were tested for their ability to protect mouse macrophage RAW 264.7 cells from LeTx-induced cell death as described in our earlier publications (2)(3)(4). Inhibition of the cytotoxic activity of ␣-HL was evaluated using a rabbit erythrocyte cell lysis assay as described in reference 2.…”
mentioning
confidence: 99%