Briefly, cells were fixed in 4% PFA as previously reported 31 (
link). The cells were incubated with 0.1% Triton X-100 in PBS for 10 min at RT and for another hour in PBS containing 3% bovine serum albumin (BSA). The cells were incubated with primary antibodies, followed by labeling with corresponding fluorescent secondary antibodies. After staining with DAPI, cells were then rinsed with PBS and mounted onto glass slides with
Vectashield mounting medium (Vector Laboratories). Images were captured using a NikonA1R confocal microscope.
The following primary antibodies were used: rabbit anti-GPCR
GPR124 (
GPR124, 1:300, Abcam, ab67820), rabbit anti-
GPR124 (TEM5, 1:500, Invitrogen, PA5-20442),
mouse anti-Vinculin (1:300, Abcam, ab18058),
mouse anti-Paxillin (1:300, Thermofisher, MA5-13356),
Alexa Fluor 647 Phalloidin (1:40, Invitrogen, A22287),
Alexa Fluor 555 Phalloidin (1:40, Invitrogen, A34055), mouse anti-Myc-tag (1:2,000, Medical & biological laboratories, M192-3),
goat anti-PDGFR-β (1:300, R&D systems, AF1042), rabbit anti-Partitioning-defective 3 (PAR-3, 1:500, Millipore, 07-330).
Isolated focal adhesions were stained with the following antibodies: rabbit anti-
GPR124 (1:300, Abcam, ab67820),
mouse anti-Vinculin (1:300, Abcam, ab18058),
mouse anti-Paxillin (1:300, Thermofisher, MA5-13356).
Chen D.Y., Sun N.H., Lu Y.P., Hong L.J., Cui T.T., Wang C.K., Chen X.H., Wang S.S., Feng L.L., Shi W.X., Fukunaga K., Chen Z., Lu Y.M, & Han F. (2019). GPR124 facilitates pericyte polarization and migration by regulating the formation of filopodia during ischemic injury. Theranostics, 9(20), 5937-5955.