Rebecca Boyle in Popular Science suggested that personalized mouse models might eventually be used for testing the effectiveness of drugs. The mice are implanted with tissue (e.g. tumours or blood cells) from the patient that can mimic their biology and then are used to pre-test drugs or treatments to see if they will potentially work in the patient. S. Pelech comments that immune compromised mice have also long been used for cultivation of human tumours from transplanted cancer cells, but the identification of the driver cancer mutations in the sequenced genome from the tumour of a patient is itself a very challenging task. Due to the acquisition of new mutations in growing tumours from defects in DNA repair proteins, the genetic profiles of descendant tumours in the mice could actually be quite diverse and respond differently to even the same drugs. Ultimately, an entire customized research program would be required to deliver personalized medicine as proposed by Ms. Boyle. Read More...

Tags: Cancer, Transgenics, Personalized Medicine