A. Schematic representation of HPIV3 infection of day 50
cells differentiated according to our protocol. B. Bright-field
view and GFP expression in a representative culture well of day 58 RUES2 ESC
differentiated according to the protocol shown in A and infected with GFP
expressing-HPIV3 at day 50 (n=3 independent experiments, scale bar: 5mm).
C. Higher magnification bright-field views and GFP expression
in the cultures 8-days post infection with GFP expressing-HPIV3 (representative
of n=3 independent experiments). D. Immunofluorescence staining for
viral particle HN and mature airway and distal lung markers 8 days
post-infection with HPIV3 (representative of n=3 independent experiments, inset
scale bar: 30μm). E. Schematic representation of lentiviral
transduction of lung progenitors before embedding in collagen I gels and further
differentiation and maturation according to our protocol. F.
Representative bright-field views and ZsGreen expression in lung progenitors 44h
after transduction with a ZsGreen expressing-lentivirus, according to
established protocols (representative of n=3 independent experiments).
G. Representative bright-field views and ZsGreen expression of
transduced lung progenitors further cultured in collagen I gels according to the
protocol shown in A, at the indicated differentiation days (representative of
n=3 independent experiments). DE, definitive endoderm; AFE, anterior foregut
endoderm; LP, lung progenitor.