Figure 1. Morphology and Marker Expression of Neural Progenitor Cells Cultured in STEMdiff™ Neural Progenitor Medium

(A) Typical NPC morphology is observed in cultures (shown at day 6 of passage 1). (B-D) NPCs maintained in STEMdiff™ Neural Progenitor Medium express the CNS-type NPC markers PAX6 (B, D, red), SOX1 (C, red) and NESTIN (C, green), but not the neural crest marker SOX10 (D, green, single channel shown in inset). B-D were taken at the same magnification.

Figure 2. Expansion of Neural Progenitor Cells in STEMdiff™ Neural Progenitor Medium

NPCs cultured in STEMdiff™ Neural Progenitor Medium can be expanded to generate a large number of cells. Three- to five-fold expansion can be achieved upon each passage. NPCs were derived using STEMdiff™ Neural Induction Medium and passaged once a week on average. n = 6.

Figure 3. Neural Progenitor Cells Cultured in STEMdiff™ Neural Progenitor Medium Show Minimal Spontaneous Neuronal Differentiation

Passages 1 (A) and 3 (B) of a representative NPC culture maintained in STEMdiff™ Neural Progenitor Medium. Cells were immunolabeled with SOX1 (red) to identify NPCs, and class III β-tubulin (green) to identify neurons. Spontaneous neuronal differentiation is low in NPC cultures maintained in STEMdiff™ Neural Progenitor Medium. A and B were taken at the same magnification.

Figure 4. Neural Progenitor Cells Maintained in STEMdiff™ Neural Progenitor Medium can Differentiate into Neurons and Astrocytes

When directed according to published protocols, NPCs can differentiate into neurons (A, class III β-tubulin shown in red) and astrocytes (B, GFAP shown in red). Nuclei are counterstained with DAPI (blue).