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Dr Barbara Tanos

Senior Researcher

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Dr Barbara Tanos is an ICR Fellow who specialises in the study of centrioles and cilia and how they regulate changes in signaling, polarity and the cytoskeleton in normal and cancer cells. To learn more about her lab visit tanoslab.org.

Biography and research overview

A global nomad, Dr Barbara Tanos received her undergraduate degree from the University Buenos Aires, Argentina, and her PhD in Molecular Cancer Biology from Duke University in North Carolina. As a graduate student in the laboratory of Dr Ann Marie Pendergast, Dr Tanos became interested in how signal transduction pathways regulate basic biological processes such as the trafficking of growth factor receptors throughout the cell. During her graduate studies, Dr Tanos uncovered a novel role of Abl tyrosine kinases in inhibiting the internalisation of the epidermal growth factor receptor (EGFR) through specific phosphorylation of a tyrosine residue.

After receiving her PhD, Dr Tanos continued to study protein trafficking in the laboratory of Dr Enrique Rodriguez-Boulan, where she focused on the Ras effector IQGAP1 and its role in tight junction formation and maintenance.

In the last few years, Dr Tanos has expanded her interests in cell biological processes to include the study of centrosome biology and ciliogenesis, and has uncovered a new group of centriolar proteins required for cilia formation. She has shown that these proteins, known as distal appendage proteins (or DAPs), are required for centriole docking to the plasma membrane, and for the recruitment of specific proteins to the transition zone.

Dr Tanos’s laboratory specialises in identifying and characterizing cancer-specific changes in signal transduction caused by alterations in cellular structures. Her approach is based on understanding how normal and cancer cells sense their environment, and to use this information to find and exploit therapeutically useful vulnerabilities in cancer cells. In this context, her research covers the study of centrioles, cilia and epithelial polarity.

Dr Tanos uses both gene editing and RNAi to switch the expression of proteins of interest on and off, as well as a number of microscopy and biochemical techniques to study the functional contribution of centrioles and cilia to malignant transformation. The ultimate goal is to understand how these processes are altered in cancer and use this knowledge to identify novel therapeutic strategies.

To learn more about her lab visit: tanoslab.org.

 

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