Figure 3. Transforming potential of BDNF-activated TRKB point mutants in vitro.
(A) RIE-1 cells expressing mutant or wild-type TRKB were transduced with BDNF and analyzed on immunoblot (IB). Arrowhead indicates position of BDNF. Tubulin serves as loading control. (B) Morphologic transformation of RIE-1 cells co-expressing mutant or wild-type TRKB and BDNF, photographed at 50x magnification. (C) The epithelial marker E-cadherin is downregulated in TRKB-induced, morphologically transformed, cells, as assessed by immunoblot (IB) analysis. β-actin serves as loading control. (D) Anoikis suppression by mutant or wild-type TRKB+BDNF in cells described in (A). Cells were scanned at 1x magnification 9 days after seeding onto ULC plates.
