Dr. Benninger joined the BDC faculty in 2011. Main goals of Dr. Benninger’s research include understanding novel signaling pathways in the islet of Langerhans that enhance the regulation of hormone secretion; how disruptions to these signaling pathways cause islet dysfunction in diabetes; and how we can manipulate these signaling pathways to improve islet function towards developing new treatments for individuals with diabetes. He is utilizing state-of-the-art quantitative fluorescence microscopy, including two-photon microscopy, fluorescence lifetime imaging, polarization imaging and FRET in studying pancreatic islet dysfunction in diabetes. Dr. Benninger has developed an integrative model of how different cell-cell communication mechanisms dynamically interact within the islet. They have gained understanding into how this impact
in-vivo islet function and glucose homeostasis and are now demonstrating that gap junction channels can be modulated to improve islet function and insulin secretion in models of diabetes. Overall his work applies sophisticated quantitative techniques and predictive quantitative models to link emergent multi-cellular properties of the islet of Langerhans to
in-vivo physiology and diabetes, and test novel hypotheses regarding these properties that may be clinically important.
Education, Licensure & Certifications
Vanderbilt University. Research Instructor. 2009-2011. Molecular Physiology and Biophysics.
Vanderbilt University. Post-Doctoral Research Fellow. 2006-2009. Molecular Physiology and Biophysics.
Imperial College London. PhD. 2002-2006. Physics (Optics and Biophysics).
Imperial College London. MSci. 1998-2002. Physics
Research
The Benninger lab is a multi-disciplinary team of scientists who are guided by engineering principles and technologies to study the endocrine pancreas (islets of Langerhans). With mechanistic knowledge underlying the dynamics of islet function and hormone release, we can develop diagnostics and therapeutic interventions to effectively manage, cure and prevent diabetes. Towards this goal the lab combines novel optical imaging and ultrasound imaging approaches to study the function of the islets of Langerhans over multiple levels of organization, and how function is disrupted in diabetes.
Our research includes:
- Systems biophysics of the islet of Langerhans in diabetes
- Electrical synapse (gap junction channel) plasticity
- Cell heterogeneity and emergent multicellular properties of the islet
- Advanced optical microscopy and ultrasound imaging
- Imaging diagnostics for type 1 diabetes
Richard Benninger Lab Website