Fig. 2.

A: Two representative dot plots showing CD45 and CD11b staining for enhancing GBM specimens by flow cytometry. Each dot represents a single stained cell. Four distinct populations can be seen: CD45⁻/CD11b⁻, CD45⁺/CD11b⁻, CD45^dim/CD11b⁺, and CD45^bright/CD11b⁺. Double negative gates are based on isotype-matched controls (not shown). B: Summary scatter plot showing the percentage of total viable cells that were CD45⁺/CD11b⁻, CD45^dim/CD11b⁺, and CD45^bright/CD11b⁺. Each shape represents a tumor specimen taken from a specific patient.