What is wrong with the following chain of reasoning?
- Nearly all cancer cells rely on high rates of glucose uptake (upto 200 times more than normal cells). This is known as the the Warburg effect.
- There is only one cell type in the human body that is obligated to use glucose - red blood cells (erythrocytes).
- Starve cancer cells of their only energy source by inducing hypoglycaemia in the patient, preserving red blood cells using, for example, erythrocytapheresis or an oxygen-carrying substitute.
I understand that to completely eliminate a tumour such a regime would need to be in place for an extended period, but would like to know why such a treatment isn't feasible in theory?