Figure 6.
Amyloid fibrils in culture medium containing secreted SP-htau: TEM images of a sample obtained from culture medium in which non-transfected (control) SH-SY5Y cells grew, untreated (a) or treated (b) with PNGase-F; images of a sample obtained from culture medium in which SH-SY5Y cells secreting SP-htau grew, untreated (c) or treated (d) with PNGase-F. Congo red birefringence images of a sample obtained from culture medium in which non-transfected (control) SH-SY5Y cells grew, untreated (e) and treated (f) with PNGase-F and sample obtained from culture medium in which SH-SY5Y cells secreting SP-htau grew, untreated (g) and treated (h) with PNGase-F.