Molecular profiles in therapeutic strategy

Peták István, Schwab Richárd
KPS Orvosi Biotechnológiai és Egészségügyi Szolgáltató Kft., Budapest

In 2013, 10 years after the completion of the human genome, the cancer genome project has identifi ed almost all possible cancer genes, which could be responsible for the malignant transformation and progression. These genes are called „driver” genes, and the pathogenic mutations to be „driver” mutations. The census of „driver genes” in 2013 counted 138 genes and 1.5 million mutations. The situation is further complicated by the fact that up to 8 „driver” gene can be activated simultaneously in the same tumor, furthermore, the profi le may change during tumor growth and metastatization. 2013 was a turning point also because several targeted therapies were registered. Currently there are about 30 targeted drugs in clinical use and more than 200 targeted compounds in clinical development. This means that in 3-4 years the number of drugs will at least double. Most of the current patients can only access these compounds in clinical trials. But, patient already benefi t signifi cantly more even from phase I clinical trials, if they are selected based on the molecular profi le of the tumor. Fortunately, the advancements of next generation sequencing technologies provide the opportunity to identify all „driver” genes, – the whole molecular profi le, – in the patient’s tumor for the cost of one month targeted therapy. But the information generated can be only used in clinical practice if the results are processed by „molecular info-bionics”.

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