Paraffin-embedded tissue sections were deparaffinized in three changes of xylene and ethanol. Heat-mediated antigen retrieval was performed (Dako
S1699, pH 6.0) and tissue slides were permeabilized with 0.5% Triton X-100 solution for 10 minutes at room temperature and then blocked with appropriate serum according to the species of secondary antibody for 1 hour at room temperature. For STAT1 staining (
AHO0832, Invitrogen, 1:800),
Alexa Fluor 488 Tyramide Super Boost Kit was used (B40941, Invitrogen) and antibody was incubated at 37°C for 30 minutes. For WNT5A (
MA5–15502, Invitrogen, 1:800) and TP63 (39692, Cell Signaling Technology, 1:900) staining, samples were incubated at 37°C for 30 minutes. Sample slides were then washed in PBS three times and incubated with DyLight 649 (DI-2649, Vector, 1:100) and
Alexa Fluor 555 (A31572, Invitrogen, 1:300) conjugated secondary antibodies for an hour at room temperature. Nuclei were counterstained with DAPI and samples mounted with
Vectashield (H1000, Vector Laboratories) and examined using Zeiss
Axio Scan.Z1 automated fluorescence slide scanner.
Clarke M., Mackay A., Ismer B., Pickles J.C., Tatevossian R.G., Newman S., Bale T.A., Stoler I., Izquierdo E., Temelso S., Carvalho D.M., Molinari V., Burford A., Howell L., Virasami A., Fairchild A.R., Avery A., Chalker J., Kristiansen M., Haupfear K., Dalton J.D., Orisme W., Wen J., Hubank M., Kurian K.M., Rowe C., Maybury M., Crosier S., Knipstein J., Schüller U., Kordes U., Kram D.E., Snuderl M., Bridges L., Martin A.J., Doey L.J., Al-Sarraj S., Chandler C., Zebian B., Cairns C., Natrajan R., Boult J.K., Robinson S.P., Sill M., Dunkel I.J., Gilheeney S.W., Rosenblum M.K., Hughes D., Proszek P.Z., Macdonald T.J., Preusser M., Haberler C., Slavc I., Packer R., Ng H.K., Caspi S., Popović M., Kotnik B.F., Wood M.D., Baird L., Davare M.A., Solomon D.A., Olsen T.K., Brandal P., Farrell M., Cryan J.B., Capra M., Karremann M., Schittenhelm J., Schuhmann M.U., Ebinger M., Dinjens W.N., Kerl K., Hettmer S., Pietsch T., Andreiuolo F., Driever P.H., Korshunov A., Hiddingh L., Worst B.C., Sturm D., Zuckermann M., Witt O., Bloom T., Mitchell C., Miele E., Colafati G.S., Diomedi-Camassei F., Bailey S., Moore A.S., Hassall T.E., Lowis S.P., Tsoli M., Cowley M.J., Ziegler D.S., Karajannis M.A., Aquilina K., Hargrave D.R., Carceller F., Marshall L.V., von Deimling A., Kramm C.M., Pfister S.M., Sahm F., Baker S.J., Mastronuzzi A., Carai A., Vinci M., Capper D., Popov S., Ellison D.W., Jacques T.S., Jones D.T, & Jones C. (2020). Infant high grade gliomas comprise multiple subgroups characterized by novel targetable gene fusions and favorable outcomes. Cancer discovery, 10(7), 942-963.