Trypan Blue solution
Company: Sigma-Aldrich
Catalog#: T8154
Product evaluation:
Isolation and Establishment of Mesenchymal Stem Cells from Wharton’s Jelly of Human Umbilical Cord
[Abstract]  Mesenchymal stem cells (MSCs) are currently considered as ‘medicinal signaling cells’ and a promising resource in regard to cell-based regenerative therapy. Umbilical cord is a human term perinatal tissue which is easily attainable, and a promising source of stem cells with no associated ethical concerns. MSCs have been isolated from different regions of the umbilical cord and Wharton’s jelly (WJ) is the gelatinous matrix that surrounds and provides protection to the umbilical cord blood ...

In vitro Homeostatic Proliferation of Human CD8 T Cells
[Abstract]  Long-lived T-cell–mediated immunity requires persistence of memory T cells in an antigen-free environment while also maintaining a heightened capacity to recall effector functions. Such antigen-independent homeostatic proliferation is mediated in part by the common gamma-chain cytokines IL-7 and IL-15. To further explore the mechanisms governing maintenance of effector functions in long-lived memory T cells during antigen-independent proliferation, human naïve and memory CD8 T cells can be ...

Optogenetic Stimulation and Recording of Primary Cultured Neurons with Spatiotemporal Control
[Abstract]  We studied a network of cortical neurons in culture and developed an innovative optical device to stimulate optogenetically a large neuronal population with both spatial and temporal precision. We first describe how to culture primary neurons expressing channelrhodopsin. We then detail the optogenetic setup based on the workings of a fast Digital Light Processing (DLP) projector. The setup is able to stimulate tens to hundreds neurons with independent trains of light pulses that evoked action ...

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