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Inhibiting the Ca²⁺ Influx Induced by Human CSF.

ABSTRACT: One potential therapeutic strategy for Alzheimer's disease (AD) is to use antibodies that bind to small soluble protein aggregates to reduce their toxic effects. However, these therapies are rarely tested in human CSF before clinical trials because of the lack of sensitive methods that enable the measurement of aggregate-induced toxicity at low concentrations. We have developed highly sensitive single vesicle and single-cell-based assays that detect the Ca²⁺ influx caused by the CSF of individuals affected with AD and healthy controls, and we have found comparable effects for both types of samples. We also show that an extracellular chaperone clusterin; a nanobody specific to the amyloid-? peptide (A?); and bapineuzumab, a humanized monoclonal antibody raised against A?, could all reduce the Ca²⁺ influx caused by synthetic A? oligomers but are less effective in CSF. These assays could be used to characterize potential therapeutic agents in CSF before clinical trials.

SUBMITTER: Drews A

PROVIDER: S-EPMC5745229 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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Inhibiting the Ca<sup>2+</sup> Influx Induced by Human CSF.

Drews Anna A De Suman S Flagmeier Patrick P Wirthensohn David C DC Chen Wei-Hsin WH Whiten Daniel R DR Rodrigues Margarida M Vincke Cécile C Muyldermans Serge S Paterson Ross W RW Slattery Catherine F CF Fox Nick C NC Schott Jonathan M JM Zetterberg Henrik H Dobson Christopher M CM Gandhi Sonia S Klenerman David D

Cell reports 20171201 11

One potential therapeutic strategy for Alzheimer's disease (AD) is to use antibodies that bind to small soluble protein aggregates to reduce their toxic effects. However, these therapies are rarely tested in human CSF before clinical trials because of the lack of sensitive methods that enable the measurement of aggregate-induced toxicity at low concentrations. We have developed highly sensitive single vesicle and single-cell-based assays that detect the Ca<sup>2+</sup> influx caused by the CSF o ...[more]

PMID: 29241555

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Dataset Information

Inhibiting the Ca2+ Influx Induced by Human CSF.

Publications

Inhibiting the Ca<sup>2+</sup> Influx Induced by Human CSF.

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Inhibiting the Ca²⁺ Influx Induced by Human CSF.