Journal: Frontiers in Molecular Neuroscience
Article Title: Altered Developmental Expression of the Astrocyte-Secreted Factors Hevin and SPARC in the Fragile X Mouse Model
doi: 10.3389/fnmol.2017.00268
Figure Lengend Snippet: Hevin expression is altered at postnatal day (P) 14 in the cortex of Fmr1 knock-out (KO) mice. (A) Cultured cortical astrocytes co-labeled with anti-glial fibrillary acidic protein (GFAP; green) and anti-hevin (red) after 2 days in vitro . Nuclei were stained with 4′,6-diamidino-2-phenylindole (blue). Images were obtained using a 40x objective with a Zeiss Axioimager M2. Scale bars = 50 μm. (B) Representative western blots showing hevin (~130 kDa) in cortical samples (30 μg of protein per lane) from P7, P14 and P21 WT and Fmr1 KO mice, as well as the corresponding total protein within each lane. Negative controls that were run using P14 WT whole cortical tissue with either no primary antibody or no secondary antibody are shown. (C–E) Hevin expression in the cortex of WT (black; n = 8) and Fmr1 KO (white; n = 8) mice at P7, P14 and P21. Bands representing hevin were normalized against the total protein within the same lane on the membrane, and were then expressed as a percent of the average level of hevin in the WT group. (F) Hevin expression in cortical astrocytes isolated from P14 WT (black; n = 4) and Fmr1 KO (white; n = 4) mice. Immediately to the left of the graph is shown a representative Western blot with bands corresponding to hevin from P14 WT and Fmr1 KO cortical astrocyte samples (10 μg of protein per lane), as well as the corresponding total protein. Statistical differences were denoted with either a single asterisk, P < 0.05, or a double asterisks, P < 0.01.
Article Snippet: The following antibodies were used: rabbit anti-glial fibrillary acidic protein (GFAP; 1:500; catalog#: Z0334; Dako, Burlington, ON, Canada), chicken anti-GFAP (1:2000; catalog#: CH22102; Neuromics, Minneapolis, MN, USA) rabbit anti-hevin antibody (1:100; catalog#: bs-6110R; Bioss, Woburn, MA, USA), goat anti-SPARC antibody (10 μg/mL; catalog#: AF942; R&D Systems, Minneapolis, MN, USA).
Techniques: Expressing, Knock-Out, Cell Culture, Labeling, In Vitro, Staining, Western Blot, Isolation