Targeting the PI3K Signalling as a Therapeutic Strategy in Colorectal Cancer

  • Maria Sofia Fernandes
  • João Miguel Sanches
  • Raquel SerucaEmail author
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 1110)


Colorectal cancer (CRC) remains one of the leading causes of cancer mortality worldwide. Regarded as a heterogeneous disease, a number of biomarkers have been proposed to help in the stratification of CRC patients and to enable the selection of the best therapy for each patient towards personalized therapy. However, although the molecular mechanisms underlying the development of CRC have been elucidated, the therapeutic strategies available for these patients are still quite limited. Thus, over the last few years, a multitude of novel targets and therapeutic strategies have emerged focusing on deregulated molecules and pathways that are implicated in cell growth and survival. Particularly relevant in CRC are the activating mutations in the oncogene PIK3CA that frequently occur in concomitancy with KRAS and BRAF mutations and that lead to deregulation of the major signalling pathways PI3K and MAPK, downstream of EGFR. This review focus on the importance of the PI3K signalling in CRC development, on the current knowledge of PI3K inhibition as a therapeutic approach in CRC and on the implications PI3K signalling molecules may have as potential biomarkers and as new targets for directed therapies in CRC patients.


Colorectal cancer PI3K signalling pathway PI3K p110α Targeted therapies KRAS 


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Maria Sofia Fernandes
    • 1
    • 2
    • 3
  • João Miguel Sanches
    • 1
  • Raquel Seruca
    • 2
    • 3
    • 4
    Email author
  1. 1.Institute for Systems and Robotics (ISR), Instituto Superior Técnico (IST)LisboaPortugal
  2. 2.Instituto de Investigação e Inovação em Saúde (i3S)University of PortoPortoPortugal
  3. 3.Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)PortoPortugal
  4. 4.Faculty of MedicineUniversity of PortoPortoPortugal

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