Figure 3: Immunoreaction of 14F7 Mab in malignant gliomas. A and C: Hematoxylin and eosin staining of ependimoma (grade II) and glioblastoma (grade IV), respectively. Observe: a weak reactivity of 14F7 Mab in ependimoma section (Brown color). Nevertheless, an increased expression of NeuGcGM3 was evidenced in the glioblastoma cells (D). Counterstaining with Mayer’s Hematoxylin (Blue color). White bar=100 µm.