ioSensory Neurons™ - Human iPSC derived cells

• LM

Supplier Data

Light Microscopy - ioSensory Neurons™ - Human iPSC derived cells (AB317489)

ioSensory Neurons show visible neuronal networks by day 7. Upon reprogramming, rapid morphological changes are observed in the cells, with neurons identified by day 4 post-revival. Visible neuronal networks are observed by day 7 post-thaw. Images show day 1 to 14 post-thawing; 10X magnification.

• FuncS

Supplier Data

Functional Studies - ioSensory Neurons™ - Human iPSC derived cells (AB317489)

ioSensory Neurons display enhanced TRPM3 and TRPM8 responses with bespoke media for these channels and increased culture length. Calcium mobilisation imaging, performed with ioSensory Neurons cultured using a bespoke media up to day 14, 17 or 21 post-thaw, shows that ioSensory Neurons display strong responses to pharmacological agonists targeting thermosensitive TRP channels, TRPM3 (CIM0216) and TRPM8 (WS12). The top and bottom left graphs show active traces which represent the increase in intracellular calcium mobilisation of individual cells, at day 21 post-thaw, upon exposure to noxious agonists but not to vehicle, indicating that cells display features of functional nociceptors. The bottom right graph shows the percentage of responding cells at day 14, 17, or 21 post-thaw – the bespoke media and increased culture length appears to greatly enhance the percentage of cells responding to the TRPM3 and TRPM8 agonists, to 90% and 67% at day 21 post-thaw, respectively. Please contact us at technical@bit.bio for further information on the bespoke media.

• FuncS

Supplier Data

Functional Studies - ioSensory Neurons™ - Human iPSC derived cells (AB317489)

ioSensory Neurons display spontaneous activity that matures over time. Multi electrode array (MEA) recordings of ioSensory Neurons at days 6 and 17. The activity maps show firing rate (A), spike amplitude (B) and % of active electrodes (C). Results demonstrate a time-dependent increase of spontaneous activity during neuronal maturation from day 6 to day 17. Analysis was performed on a Maxwell Biosystem's MaxTwo multi-well system. Note, this data is from cells in continuous culture and not cryopreserved cells.

• ICC/IF

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Immunocytochemistry/ Immunofluorescence - ioSensory Neurons™ - Human iPSC derived cells (AB317489)

ioSensory Neurons express pan-sensory neuron-specific markers. Immunofluorescent staining of ioSensory Neurons at day 14 post-revival. The upper panel shows that ioSensory Neurons are positive for BRN3A (red), the pan-neuronal marker MAP2 (green), and the DAPI counterstain (blue), and demonstrates that all MAP2 positive neurons have a sensory neuronal identity. The lower panel shows that ioSensory Neurons are positive for ISL1 (magenta), PRPH (red), the pan-neuronal marker TUBB3 (green), and the DAPI counterstain (blue).

• FuncS

Supplier Data

Functional Studies - ioSensory Neurons™ - Human iPSC derived cells (AB317489)

ioSensory Neurons display a functional nociceptor phenotype. Calcium mobilisation imaging upon stimulation of ioSensory Neurons with pharmacological agonists targeting thermosensitive TRP channels such as TRPV1 (capsaicin), TRPM3 (CIM0216) and TRPM8 (WS12). Active traces represent the increase in intracellular calcium mobilisation of individual cells upon exposure to noxious stimuli but not to vehicle at day 14 post-revival. This indicates that cells display a functional nociceptor phenotype within 14 days post-thaw.

• Sequencing

Supplier Data

Sequencing - ioSensory Neurons™ - Human iPSC derived cells (AB317489)

Whole transcriptome analysis shows high lot-to-lot consistency of ioSensory Neurons. Bulk RNA sequencing analysis was performed on three technical replicates of three independent lots of ioSensory Neurons at different time points throughout the reprogramming protocol. Principal component analysis represents the variance in gene expression between the lots of ioSensory Neurons. This analysis shows high consistency between each lot of ioSensory Neurons at each given timepoint. Differential gene expression was found to be less than 1% between lots, at day 14 post-thaw. Pure populations of ioSensory Neurons with equivalent expression profiles can be generated consistently from every vial, allowing confidence in experimental reproducibility.

• Sequencing

Supplier Data

Sequencing - ioSensory Neurons™ - Human iPSC derived cells (AB317489)

Single cell RNA-sequencing shows ioSensory Neurons express key nociceptor markers. Single cell RNA-sequencing analysis was performed with ioSensory Neurons at five specific timepoints : day 0 (iPSCs), 7, 10, 14 and 17. By day 7, the expression of key nociceptor marker genes (NTRK1 and TRPV1) could be detected in post-mitotic sensory neurons. Gene expression was assessed by 10x Genomics single cell RNA-sequencing. Note, this data is from cells in continuous culture, so minor variations may exist between this data and data from cryopreserved cells.

• Sequencing

Supplier Data

Sequencing - ioSensory Neurons™ - Human iPSC derived cells (AB317489)

Single cell RNA-sequencing shows ioSensory Neurons form a pure population (>99%) of sensory neurons and express key pan-sensory neuronal markers.

Single cell RNA-sequencing analysis was performed with ioSensory Neurons at five specific timepoints : day 0 (iPSCs), 7, 10, 14 and 17. By day 7, the population has a distinct expression profile indicating a pure population (>99%) of post-mitotic sensory neurons, demonstrated through the expression of pan-sensory neuronal marker genes, ISL1, ISL2, PRPH, and BRN3A, together with the pan-neuronal markers TUBB3 and MAP2. Gene expression was assessed by 10x Genomics single cell RNA-sequencing. Note, this data is from cells in continuous culture, so minor variations may exist between this data and data from cryopreserved cells.