Journal: PLoS Biology
Article Title: Huntingtin Is Required for Epithelial Polarity through RAB11A-Mediated Apical Trafficking of PAR3-aPKC
doi: 10.1371/journal.pbio.1002142
Figure Lengend Snippet: (A) Mammary gland section stained for HTT 4C8 and RAB11A. (B) Mammary gland section stained for E-cadherin and RAB11A. (C) Twenty-four–hour and four-day MDCK 3-D cultures stained for HTT 4C8 and RAB11A. Colocalization of HTT and RAB11A is displayed in yellow (merge). (D) Twenty-four–hour and four-day MDCK 3-D cultures stained for RAB11A. HTTFL is tagged with mCherry and fluorescence is displayed in magenta and the colocalization of RAB11A and HTTFL appears in white. (E) Twenty-four–hour and four-day MDCK 3-D cultures transfected with RAB11A WT , RAB11A Q70L or RAB11A S22N , stained for PAR3. RAB11 is tagged with GFP and fluorescence is displayed in magenta. The colocalization of aPKC and RAB11A appears in white. (F) Representative line-scan analysis (relative fluorescence intensity; at least 20 cells were analyzed per condition). (G) Percentage of acini with normal lumen. (H) Quantification of acini size. (G and H) Control+RAB11A WT : n = 59 acini, Control+RAB11A Q70L : n = 54 acini, Control+RAB11A S22N : n = 66 acini, shHTT2+RAB11A WT : n = 60 acini, shHTT2+RAB11A Q70L : n = 72 acini, shHTT2+RAB11A S22N : n = 93 acini. (I) FM64-4 4-day MDCK 3-D structures were video recorded. Maximum intensity and z projections are shown. All scale bars, 10 μm. Error bars, SEM. ** p <0.01; *** p <0.001. Complete statistical analyses with number of measures are detailed in .
Article Snippet: GFP-RAB11A wild-type (WT), dominant-negative (S25N), and constitutively active (Q70L) (referred to herein as RAB11A WT , RAB11A S25N and RAB11A Q70L , respectively) were obtained from B. Goud (Institut Curie, France).
Techniques: Staining, Fluorescence, Transfection, Control