Figure 4.
Immunostaining for microglia, with Iba-1: (A) Immunofluorescence (IF) Images for microglial staining (Iba1/DAPI) and morphology (at 20X), in ipsilateral (IH) and contralateral (CH) hemispheres of 0 Gy and 20 Gy mice injected with GBM143 PDX line. (B) the IF images skeletonized using Image J software to assess microglial morphology. (C) the microglial staining in ipsilateral hemispheres of 0 Gy-GBM143, and 2 Gy-GBM143 compared with that of ipsilateral hemispheres of two separate mice cranially irradiated with 20 Gy-single dose; however, not injected with any human-GBM PDX line. (D) (i) Site of GBM143 injection at IH of mice having received ± cranial irradiation (ii) Stages of microglial activation observed in experimental setting.