Non-negative blind deconvolution for signal processing in a CRISPR-edited iPSC-cardiomyocyte model of dilated cardiomyopathy.
Hang XuRuheen WaliCleophas CheruiyotJonathan BodenschatzGerd HasenfussAndreas JanshoffMichael HabeckAntje EbertPublished in: FEBS letters (2021)
We developed an integrated platform for analysis of parameterized data from human disease models. We report a non-negative blind deconvolution (NNBD) approach to quantify calcium (Ca2+ ) handling, beating force and contractility in human-induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) at the single-cell level. We employed CRISPR/Cas gene editing to introduce a dilated cardiomyopathy (DCM)-causing mutation in troponin T (TnT), TnT-R141W, into wild-type control iPSCs (MUT). The NNDB-based method enabled data parametrization, fitting and analysis in wild-type controls versus isogenic MUT iPSC-CMs. Of note, Cas9-edited TnT-R141W iPSC-CMs revealed significantly reduced beating force and prolonged contractile event duration. The NNBD-based platform provides an alternative framework for improved quantitation of molecular disease phenotypes and may contribute to the development of novel diagnostic tools.
Keyphrases
- crispr cas
- induced pluripotent stem cells
- wild type
- genome editing
- endothelial cells
- single cell
- high glucose
- high throughput
- electronic health record
- single molecule
- mass spectrometry
- rna seq
- liquid chromatography tandem mass spectrometry
- smooth muscle
- ms ms
- pluripotent stem cells
- drug induced
- machine learning
- data analysis
- artificial intelligence
- liquid chromatography
- protein kinase