The team, headed by Manuel Valiente from CNIO, which counts with the contributions of scientists from other Research Centres, namely the Champalimaud Foundation, found that a simple blood test can help detect patients with resistance to brain radiotherapy and identified a drug that might reverse it. A multi-centre clinical study is now under way to validate the predictive potential of this biomarker through the National Brain Metastasis Network (Spanish acronym: RENACER).

The study is being published in Nature Medicine this week.

Rita Fior uses zebrafish to do basic and translational research in cancer at the Champalimaud Foundation. A few years ago, having to deal with cancer in her family led her to design a test, based on her animal “model” – that would allow doctors to choose, among the available chemotherapeutic options, the best one for a given patient. How? Using the little zebrafish as “avatars”, as personalised “alter-egos” of the patients. Tumour cells from a patient are injected in the fish, generating the “avatars'' that will then be submitted to the treatment options available for that patient.