Calcium-induced Differentiation
Calcium-induced Differentiation - Related Videos
08:14
Assessing T-cell Receptor-Induced Calcium Influx Using a Calcium Indicator Dye
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2025
This video analyzes T-cell receptor-induced calcium influx in T-cells. Anti-CD3 antibodies activate the T-cell signaling pathways, leading to an increase in intracellular calcium ions that bind with Indo-1 dye. In flow cytometry, a spectrum shift from the calcium-free state to the calcium-bound state correlates with T-cell receptor-induced calcium influx.
10:45
Isolation of Human Myoblasts, Assessment of Myogenic Differentiation, and Store-operated Calcium Entry Measurement
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Cited by 10 •
2017
Here, we describe a methodology to obtain a pure population of human myoblasts from adult muscle tissue. These cells are used to study in vitro skeletal muscle differentiation and, in particular, to study proteins involved in Ca2+ signaling.
02:18
Differentiating Induced Neural Progenitor Cells into Astrocytes
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2025
This video demonstrates the process for differentiating induced neural progenitor cells (iNPCs) into neurons and astrocytes using specialized media.
04:56
Differentiation of Human-Induced Pluripotent Stem Cells into Macrophages
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2025
This video describes an in vitro method for generating macrophages from human induced pluripotent stem cells (iPSCs). Macrophage generation from iPSCs occurs in three stages: (i) aggregation of iPSCs in suspension to form three-dimensional embryoid bodies (EBs) that differentiate into mesodermal cells, (ii) formation of macrophage precursor cells from the differentiated EBs, and (iii) differentiation of the macrophage precursor cells into mature, functional macrophages.
09:32
Direct Imaging of ER Calcium with Targeted-Esterase Induced Dye Loading (TED)
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Cited by 60 •
2013
Targeted-esterase induced dye loading (TED) supports the analysis of intracellular calcium store dynamics by fluorescence imaging. The method bases on targeting of a recombinant Carboxylesterase to the endoplasmic reticulum (ER), where it improves the local unmasking of synthetic low-affinity Ca2+ indicator dyes in the ER lumen.
FAQs
Calcium entry through membrane channels or release from intracellular stores raises intracellular Ca2+ availability, allowing the signal to activate calcium-sensitive regulators. These regulators alter transcription-factor activity, which changes gene expression and helps direct unspecialized cells toward specialized phenotypes. This provides a molecular link between cellular signaling events and longer-term changes in cell fate.
Calmodulin-dependent kinases and the phosphatase calcineurin act as calcium-sensitive intermediaries rather than passive indicators of calcium levels. Once activated, they influence transcription-factor activity and downstream gene expression. Their position between calcium signaling and transcription helps explain how changes in intracellular Ca2+ can produce organized developmental responses instead of remaining as short-lived cellular signals.
The two routes represent distinct sources of the intracellular calcium signal. Membrane channels connect calcium changes with activity at the cell surface, while intracellular stores provide calcium from within the cell. Both routes can activate calcium-sensitive proteins, but distinguishing them helps researchers examine how different upstream cues influence the signaling pathways associated with differentiation.
In stem-cell research, calcium-regulating compounds and other extracellular cues provide ways to examine how signaling conditions influence the transition toward specialized cell types. Researchers can use this framework to connect changes in intracellular Ca2+ with altered transcriptional regulation and cell-fate outcomes. The approach is therefore relevant to understanding how stem cells acquire developmentally important phenotypes.
Electrical activity, extracellular cues, and calcium-regulating compounds can all influence the calcium signaling environment associated with differentiation. These inputs may act by changing calcium entry, intracellular release, or the activity of calcium-sensitive regulators. Studying them helps researchers determine how environmental or experimental conditions affect gene expression and the formation of specialized cellular phenotypes.
Neuronal and muscle maturation are important biological contexts in which calcium-linked signaling can be examined. Electrical activity and calcium regulation provide a way to study how signaling influences developmental gene expression in these tissues. This research context also connects the mechanism to tissue formation and to potential regenerative strategies that depend on directing cell specialization.