Calcium Transients
From Screening - Efficacy
Disturbances in calcium signaling are associated with many neurodegenerative diseases and cardiomyopathies. Fluorescence-based assays with iPSC-derived cardiac and neuronal models can be used to monitor short and long-term drug-induced changes on calcium transients. Our scientists develop the most optimal calcium transient assay for each project and can scale it up for high-throughput screening, to accurately evaluate efficacy and safety of drug candidates early in drug development.
Benefits
- Fast and real-time detection
- Acute and chronic evaluation
- Broad throughput screening range
Applications
Fluctuations in intracellular calcium levels of excitable cells are essential for skeletal and cardiac muscle contraction and neuronal communication. These fluctuations can be monitored in real-time by adding calcium-sensitive dyes to the disease or healthy iPSC-derived models or by generating iPSC-derived cells that genetically encode calcium indicators, such as GCaMP. Genetically induced calcium indicators are non-invasive and allow for detection of long-term drug-induced effects on peak rate, peak amplitude and peak-to-peak variability.
Cardiac
Since calcium is the interdependent regulator between cardiomyocyte electrophysiology and contraction, compounds affecting ion channels can also affect intracellular calcium transients. With this assay peak frequency, peak amplitude and average peak width of cardiomyocytes can be evaluated.
Neuron
Real-time recordings of calcium transients in co-culture of human iPSC-derived cortical neurons and astrocytes
Calcium oscillations can be recorded in basal conditions and after treatment with therapeutic candidates to measure peak rate, peak amplitude and peak-to-peak variation, which provides representative information about the neuronal activity and the treatment-induced effects to potentially predict in vivo behavioral side effects.
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