Abstracts

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Wednesday, November 18, 2015
5:30 pm
2nd floor Maxwell Dworkin Lounge

G.V.Shivashankar, Ph.D.
Mechanobiology Institute,
National University of Singapore, Singapore
& FIRC Institute of Molecular Oncology (IFOM), Milan, Italy
/E-mail: shiva.gvs@gmail.com /
/http://mbi.nus.edu.sg/g-v-shivashankar

Nuclear Mechanics of Genome Reprogramming*

Physico-chemical signals from the extracellular matrix impinge on cellular geometry resulting in altered functional nuclear landscape and gene expression. While these alterations regulate diverse biological processes including stem- cell differentiation, developmental genetic programs and cellular homeostasis; the biophysical principles underlying such control systems are unclear.

Using a multidisciplinary approach by combining high resolution optical imaging, quantitative single-cell biophysics and functional genomics, our laboratory investigates the principles underlying the coupling between nuclear mechanics and genome regulation. I will describe our ongoing work that provides modular links between cellular geometry and nuclear mechanics and its impact on 3D organization of chromosomes and gene expression. Such optimized modular links define the normal state of cells and these links are altered during diseases.

In this context, our studies will also have profound impact on developing single- cell nuclear biomechanical markers in early disease diagnostics for therapeutic intervention. Shivashankar is currently the Deputy Director of Mechanobiology Institute, National University of Singapore. Shivashankar's laboratory is focused on understanding the role of cell geometry on nuclear mechanics and genome regulation in living cells using a multi-disciplinary approach. He carried out his PhD research at the Rockefeller University (1994-1999) and Postdoctoral research at NEC Research Institute, Princeton USA (1999-2000). He started his laboratory at the National Center for Biological Sciences, TIFR- Bangalore, India (2000-2009) before relocating to a tenured faculty position at the National University of Singapore in 2009. His scientific awards include; the Birla Science Prize (2006), The Swarnajayanthi Fellowship (2007) and was elected to the Indian Academy of Sciences (2010). He Edited the Methods in Cell Biology series book on ?Nuclear Mechanics and Genome Regulation? (2010), Elsevier Press. More recently he Heads the Joint Research Laboratory with FIRC Institute of Molecular Oncology (IFOM), Milan, Italy and was appointed as an IFOM-NUS Chair Professor in 2014.