Applications

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Advanced Hepatocyte Cell Culture

Advanced cell culture techniques including 3D spheroids, micropatterned co-culture, bioengineered and flow-based systems, and bioprinting offer the potential to better mimic in vivo tissue structure and function.

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Advanced Hepatocyte Cell Culture

Discovery, Regenerative Medicine, Toxicity

Advanced cell culture techniques including 3D spheroids, micropatterned co-culture, bioengineered and flow-based systems, and bioprinting offer the potential to better mimic in vivo tissue structure and function. CDI’s hepatocytes are amenable to these culture techniques as pure cell populations or in co-culture with other CDI cell types.

Vascular Tissue Bioengineering

Vascular networks supply organs with oxygen and nutrients, remove waste, and serve generally as the delivery network within the body.

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Vascular Tissue Bioengineering

Discovery, Regenerative Medicine, Toxicity

Vascular networks supply organs with oxygen and nutrients, remove waste, and serve generally as the delivery network within the body. Thus, any bio- or tissue engineering effort should include a vascular framework to support organ function. CDI’s endothelial cells have demonstrated functionality to reform vascular networks in decellularized organs to support de novo organ synthesis as a transplantable tissue for regenerative medicine approaches. In addition, CDI’s endothelial cells have formed complex vascular networks in static- and flow-based bioengineered vascular platforms.

Measuring Neurite Outgrowth

During development, neurons become assembled into functional networks by growing axons and dendrites that connect synaptically to other neurons.

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Measuring Neurite Outgrowth

Discovery, Toxicity

During development, neurons become assembled into functional networks by growing axons and dendrites that connect synaptically to other neurons. Understanding this process of neurite outgrowth is a major focus of neuroscience research and central to drug discovery efforts in neurodegenerative disease and neurotoxicity studies. CDI’s neurons rapidly form complex cell networks and are an ideal model for assessing neurite outgrowth enhancement, inhibition, and protection with target compounds. These changes can be measured using platforms including:

High Content Analysis:

  1. Assessing Neurite Outgrowth: Quantification with High Content Screening. Cellular Dynamics Application Protocol.
  2. Sherman SP and Bang AG. (2014) High Content Screen for Compounds That Modulate Neurite Outgrowth and Retraction Using Human Induced Pluripotent Stem Cell-derived Neurons. Poster Presentation, ISSCR.
  3. High-content Screening of Neuronal Toxicity Using iPSC-derived Human Neurons. Molecular Devices Application Note.

Plate-based Fluorescence & Luminescence Assays:

  1. Immunofluorescent Labeling. Cellular Dynamics Application Protocol.

Label-free Analysis:

  1. Alcantara S, Garay P, et al. (2014) Development of 96/384-well Kinetic Neurite Outgrowth/Stabilisation Assays in Human iPSC-derived Neurons Using Long Term Live Cell Imaging. Poster Presentation, FENS.

Measuring Vascular Endothelial Cell Barrier Function

The endothelial cell barrier regulates the passage of materials and transit of blood cells into and out of the bloodstream.

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Measuring Vascular Endothelial Cell Barrier Function

Discovery, Toxicity

The endothelial cell barrier regulates the passage of materials and transit of blood cells into and out of the bloodstream. Thus, models of barrier function are relevant for the study of xenobiotic permeability, metastasis, inflammation, and wound healing. Endothelial cells’ barrier function and modulation by agents, such as thrombin, can be measured using impedance platforms (ACEA xCELLigence, Applied BioPhysics ECIS).

  1. Assaying Barrier Function. Cellular Dynamics Application Note.
  2. Assaying Barrier Function: xCELLigence RTCA Cardio System. Cellular Dynamics Application Protocol.

Measuring Neuronal Synaptic Activity

The measurement of neuronal synaptic activity can be accomplished through various signaling pathways.

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Measuring Neuronal Synaptic Activity

Discovery, Toxicity

The measurement of neuronal synaptic activity can be accomplished through various signaling pathways. These pathways can be measured in CDI’s neurons and dopaneurons using platforms including:

Measuring Neuronal Electrophysiology

The communication between neurons and between neurons and other cell types is accomplished through electrical signals.

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Measuring Neuronal Electrophysiology

Discovery, Regenerative Medicine, Toxicity

The communication between neurons and between neurons and other cell types is accomplished through electrical signals. CDI’s neurons exhibit biologically relevant electrical functions typical of primary human cortical neurons including evoked and spontaneous action potentials, inhibitory and excitatory post-synaptic currents, and ion channel pharmacology. These responses can be measured using platforms including:

Measuring Vascular Endothelial Cell Proliferation

The regulation of endothelial cell proliferation plays a fundamental role in vascular remodeling and angiogenesis in normal and pathological conditions.

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Measuring Vascular Endothelial Cell Proliferation

Discovery, Regenerative Medicine, Toxicity

The regulation of endothelial cell proliferation plays a fundamental role in vascular remodeling and angiogenesis in normal and pathological conditions. CDI’s endothelial cells exhibit a dose-dependent proliferation response to VEGF that is sensitive to inhibition by tyrphostin, a selective VEGF receptor inhibitor, as measured using the CellTiter-Glo Assay (Promega).

  1. Assaying Cell Proliferation. Cellular Dynamics Application Note.
  2. Belair D, Carlson C, et al. (2014) Label-free, Real-time Analysis of Endothelial Cell Morphogenesis Using iPSC-derived Endothelial Cells. Poster Presentation, AACR.

Modeling Botulinum Neurotoxin Infection

CDI's neurons provide a functionally relevant human model to measure Clostridium botulinum neurotoxin (BoNT) activity.

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Modeling Botulinum Neurotoxin Infection

Discovery, Disease Modeling, Toxicity

CDI’s neurons provide a functionally relevant human model to measure Clostridium botulinum neurotoxin (BoNT) activity. Compared with primary rat spinal cord cells, CDI’s neurons showed equal or increased sensitivity, improved dose-response, and more complete SNARE protein cleavage in response to BoNT treatment. CDI’s neurons are rapidly being adopted by researchers to study mechanisms of BoNT toxicity and by BoNT manufacturers to replace an expensive and labor-intensive mouse bioassay for potency testing.

Genetic Manipulation of Endothelial Cells

The ability to interrogate and monitor gene expression is critical to understanding biological pathways that underlie normal and pathogenic cellular function.

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Genetic Manipulation of Endothelial Cells

Discovery, Regenerative Medicine, Toxicity

The ability to interrogate and monitor gene expression is critical to understanding biological pathways that underlie normal and pathogenic cellular function. CDI has worked to evaluate a wide range of genetic manipulation tools to enable the development of assays using its endothelial cells.

3D Spheroid Cell Culture

3D spheroid culture of iCell Hepatocytes 2.0 for enhanced functional maturity and prolonged culturability.

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3D Spheroid Cell Culture

Discovery, Regenerative Medicine, Toxicity

Moving beyond traditional static-plated culture yields a more liver-like environment for hepatocyte assays and generates more predictive biology in vitro. The combination of iPSC technology with advanced culture techniques offers advantages over existing models.  Conditions developed allow for a tunable spheroid size with maintenance of viability and put the control over engineered tissue in the hands of the user. This novel workflow allows for the generation of iCell® Hepatocytes 2.0 microtissues in low-attachment plates.

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