Journal: Frontiers in Cell and Developmental Biology
Article Title: Rab10-associated tubulation as an early marker for biogenesis of the assembly compartment in cytomegalovirus-infected cells
doi: 10.3389/fcell.2024.1517236
Figure Lengend Snippet: Depletion of EHBP1, but not Rabin8, prevents perinuclear expansion of Rab10-PD in pre-AC. (A) NIH 3T3 cells were transfected with siRNA for EHBP1 or Rabin8. Control cells were either not transfected (Ø), or transfected with “scrambled” siRNA. After 48 h, cells were infected with Δm138-MCMV (MOI of 10) for 16 h, or left uninfected, and lysed for Western blot analysis. Expression of EHBP1 and Rabin8 was determined on the same membrane along with pIE1 as a control for infection and β-actin as a loading control. (B) Immunofluorescence detection of endogenous EHBP1 and Rabin8 (red) in Scr. siRNA- and EHBP- or Rabin8-siRNA-treated cells at 16 h post-infection. Staining for pIE1 (green) served as a control for infection and DAPI for visualization of nuclei. Shown are the confocal images through the focal plane. (C) Immunofluorescence detection of endogenous Rab10 (red) in untreated (NT), Scr. siRNA- and EHBP1 or Rabin8 siRNA-treated cells. Staining for pIE1 (green) served as a control for infection and DAPI for visualization of nuclei. Shown are the confocal images through the focal plane. Bars, 25 μm. (D) Percentage of MCMV-infected (pIE1-positive) cells with perinuclear accumulation of Rab10 in Scr. siRNA- and EHBP1 or Rabin8 siRNA-treated cells 16 h post-infection, shown as mean ± SD. The total number of cells analysed: Scr 1,659; EHBP1 1,578; Rabin8 1,578. Ctrl., control level. Statistical significance was determined by Student’s t-test (**p < 0.01).
Article Snippet: Small interfering (si)RNA sequences were acquired as follows: negative (control) siRNA (1022076) was from Qiagen (Hilden, Germany); siRNA for Rab3IP/Rabin8 (Sc-152666) and siRNA for EHBP1 (Sc-144602) were from Santa Cruz Biotechnology Inc. (Dallas, United States); and siRNA for Rab10 (L-040862-01–0005) was from Dharmacon Inc. (Laffayete, Colorado, United States).
Techniques: Transfection, Control, Infection, Western Blot, Expressing, Membrane, Immunofluorescence, Staining