Journal: Cell reports
Article Title: The adhesion G-protein-coupled receptor Gpr116 is essential to maintain the skeletal muscle stem cell pool.
doi: 10.1016/j.celrep.2022.111645
Figure Lengend Snippet: Figure 6. b-arrestin1 is expressed in quiescent MuSCs, where it is localized to the nucleus and required for the activity of SDP116 to prevent MuSC activation (A and B) Relative (A) Arrb1 and (B) Arrb2 levels, determined by qRT-PCR, in MACS isolated MuSCs isolated from uninjured TA muscle (no injury), and 1, 4 and 21 days post ctx injury (dpi). Levels are reported normalized to Actb. ***p < 0.001, **p < 0.01, ns, not significant. (C) Relative Arrb1 and Arrb2 levels, determined by qRT-PCR, in fresh MACS isolated MuSCs from wild-type and Dmdmdx mice. Levels are reported normalized to Actb. (D) Immunofluorescence with antibodies against PAX7 (green) and b-arrestin1 (red) on transverse sections of TA muscle. Scale bars represent 50 mm. Arrows (white) indicate position of PAX7(+) MuSCs with nuclear localized b-arrestin1.
Article Snippet: Primary antibodies were against PAX7 (DSHB), MYOD (SantaCruz, sc-304 and sc-377460), DYSTROPHIN (Pierce, PA137587), GPR116 (Invitrogen PA5-75810), b-arrestin1 (CST 12697S) Laminin (Sigma L9393), MYOG (Abcam 124800), DDX6 (Bethyl A300461A), embryonic Myosin Heavy Chain (F1.652, DSHB), Myosin Heavy Chain (MF20, DSHB), CREB (Cell Signaling 86B10) and b-ACTIN (Sigma A5441).
Techniques: Activity Assay, Activation Assay, Quantitative RT-PCR, Isolation