What kind of creature would the vampire be? The cancer cells can suck mitochondria out of the immune cells. And that ability makes them real-life vampires. If those cells can connect mitochondria to themselves they are sucking the life force out of patients like vampires does in fictionary stories. Biotechnology can use to create vampire macrophages or super macrophages. Those super immune cells would have a genetic transplant that allows them to transfer the mitochondria from bacteria to themselves. That thing could happen by using the same genomes that make the cancer cells steal mitochondria from the immune cells. And then, if the immune cells can connect those mitochondria to themselves they would turn stronger when they are sucking the "power of life" from the bacteria. And those cells are making me think that "luckily vampires are only functionally characters". But then we can think that could genetic engineering and biotechnology make vampires ...
For finding solutions for problems, we must not claim that some proposition is right or wrong. All possibilities are open. Until they are proven right or wrong using empiric methods that are scientifically accepted.