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Dr Pablo Rodriguez-Viciana
  • Senior Lecturer
  • Research Department of Cancer Bio
  • Cancer Institute
  • Faculty of Medical Sciences
Research Groups
Research Themes
Research Summary
RAS genes (H-, N- and K-RAS) are mutated in ~30% of human tumours and likely play a role by indirect activation (e.g. by receptor tyrosine kinases) in an even larger number of cancers. RAS mutations are also found in developmental disorders such as Costello and Noonan syndrome. RAS proteins function as molecular switches, with ON and OFF states. They are activated in response to extracellular signals and when in their ON state, interact with a wide array of downstream targets or effectors to regulate multiple biological processes, including proliferation, differentiation, survival and motility. Analysis of mutations in human tumours has validated both RAF and PI3-kinase as crucial RAS effectors in human tumourigenesis and both are the subject of intense research by pharmaceutical companies. However, data from a variety of experimental systems strongly suggests that additional effectors play critical contributions to RAS-induced tumour formation. RAS proteins belong to a family of closely related GTPases called the RAS family. Several members of this family share biochemical and biological properties with the RAS proteins, including the ability to act as oncogenes. Their roles in tumourigenesis and how signalling specificity is achieved among closely related members is still poorly understood. We use biochemistry, molecular and cellular biology as well as transgenic models to study how RAS family GTPase signal and carry out their multiple cellular functions. Using genomic and proteomic approaches we have identified several novel signalling pathways regulated by different members of the RAS family. Our overall goal is to characterize these novel RAS family effector pathways and to analyze their roles in tumourigenesis, with the ultimate aim of identifying and validating novel targets of therapeutic intervention for the treatment of human cancer.
Academic Background
1997 PhD Doctor of Philosophy – Biochemistry University College London
1992 BSc Bachelor of Science – Biochemistry Universidad Autonoma de Madrid
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