  Brain tumours are masses of abnormal cells that can grow in an uncontrolled
way in the brain. There are different types of malignant brain tumours. Gliomas
are malignant brain tumours that grow from glial cells and are identified as
astrocytoma, oligodendroglioma, and ependymoma. We study a mathematical model
that describes glia-neuron interaction, glioma, and chemotherapeutic agent. In
this work, we consider drug sensitive and resistant glioma cells. We show that
continuous and pulsed chemotherapy can kill glioma cells with a minimal loss of
neurons.
