Journal Article

DZNE-2020-05229

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A novel 384-multiwell microelectrode array for the impedimetric monitoring of Tau protein induced neurodegenerative processes.

Jahnke, H.-G. ; Krinke, D. ; Seidel, D. ; Lilienthal, K. ; Schmidt, S. ; Azendorf, R. ; Fischer, M. ; Mack, T.DZNE* ; Striggow, F.DZNE* ; Althaus, H. ; Schober, A. ; Robitzki, A. A. (Corresponding author)

2017
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.bios.2016.07.074

Abstract: Over the last decades, countless bioelectronic monitoring systems were developed for the analysis of cells as well as complex tissues. Most studies addressed the sensitivity and specificity of the bioelectronic detection method in comparison to classical molecular biological assays. In contrast, the up scaling as a prerequisite for the practical application of these novel bioelectronic monitoring systems is mostly only discussed theoretically. In this context, we developed a novel 384-multiwell microelectrode array (MMEA) based measurement system for the sensitive label-free real-time monitoring of neurodegenerative processes by impedance spectroscopy. With respect to the needs of productive screening systems for robust and reproducible measurements on high numbers of plates, we focused on reducing the critical contacting of more than 400 electrodes for a 384-MMEA. Therefore, we introduced an on top array of immersive counter electrodes that are individually addressed by a multiplexer and connected all measurement electrodes on the 384-MMEA to a single contact point. More strikingly, our novel approach provided a comparable signal stability and sensitivity similar to an array with integrated counter electrodes. Next, we optimized a SH-SY5Y cell based tauopathy model by introducing a novel 5-fold Tau mutation eliminating the need of artificial tauopathy induction. In combination with our novel 384-MMEA based measurement system, the concentration and time dependent neuroregenerative effect of the kinase inhibitor SRN-003-556 could be quantitatively monitored. Thus, our novel screening system could be a useful tool to identify and develop potential novel therapeutics in the field of Tau-related neurodegenerative diseases.

Keyword(s): Carbazoles: pharmacology (MeSH) ; Cell Line (MeSH) ; Dielectric Spectroscopy: instrumentation (MeSH) ; Dielectric Spectroscopy: methods (MeSH) ; Drug Evaluation, Preclinical: instrumentation (MeSH) ; Drug Evaluation, Preclinical: methods (MeSH) ; Equipment Design (MeSH) ; Humans (MeSH) ; Microelectrodes (MeSH) ; Tauopathies: diagnosis (MeSH) ; Tauopathies: drug therapy (MeSH) ; tau Proteins: analysis (MeSH) ; Carbazoles ; SRN 003-556 ; tau Proteins

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Contributing Institute(s):

1. Neurodegeneration and Intervention Strategies (AG Striggow)

Research Program(s):

1. 342 - Disease Mechanisms and Model Systems (POF3-342) (POF3-342)

Appears in the scientific report 2017

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Database coverage:
; BIOSIS Previews ; Clarivate Analytics Master Journal List ; Current Contents - Agriculture, Biology and Environmental Sciences ; Ebsco Academic Search ; IF >= 10 ; JCR ; Nationallizenz ; SCOPUS ; Web of Science Core Collection

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