DLF Science Advisory Board Spotlight
Dan Lewis Foundation | Spring 2024

Graham Dempsey, Ph.D., is a founder and Chief Scientific Officer (CSO) at Quiver Bioscience, a Cambridge, Massachusetts-based biotechnology company focused on the development of medicines for disorders of the nervous system. Dr. Dempsey and his team are working to develop treatments for some of the most challenging unsolved medical issues patients and their families face. Using advanced technologies in human stem cell biology, optogenetics, machine learning, and drug screening, progress is being made to develop medicines that will one-day treat conditions that have been largely untreatable. As the lead scientist for Quiver, formerly Q-State Biosciences, Dr. Dempsey enjoys working with world-class teams to invent, develop, and apply cutting-edge technologies to solve the most difficult challenges in biopharma for the betterment of patients.

 

Dr. Dempsey’s inspiration to dedicate his professional life to science and medicine started at the early age of seven with the tragic loss of his father to an aggressive form of cancer, an experience that has deeply motivated him to this day. He completed his undergraduate studies at the University of Pennsylvania and his doctorate at Harvard University. As a graduate student in the biophysics program at Harvard Medical School, he co-developed ‘Stochastic Optical Reconstruction Microscopy’ or STORM, a light microscope with the ability to resolve nanometer (billionth of a meter, e.g. a hair is 100,000 nanometers thick) scale details of biological materials, an achievement that had been thought to be impossible for over a century. STORM has enabled what researchers call ‘super-resolution imaging’ for visualizing the intricate details of life’s most fundamental unit, the cell. Understanding the inner workings of a cell provides a path to a deeper understanding of the ways in which life is constructed and diseases can manifest. The technology was commercialized by Nikon Instruments for researchers worldwide. 


Dr. Dempsey left academic science to join Q-State Biosciences as the first hired employee with the goal of bringing advanced technologies developed at Harvard to the study of the brain. The brain, arguably the most complex structure in the known universe, works through electrical communication between brain cells or neurons. This communication is disrupted in all brain disorders but has been near impossible to study for the purposes of effectively developing medicines. Dr. Dempsey and his team over the course of ten years built a technology system that creates human brain models from patient stem cells (i.e. a ‘disease-in-a-dish’) and converts electrical activity of those brain cells into light signals that can be detected with ultra-sensitive microscopes. The resulting signals are analyzed using machine learning to find the patterns of how electrical activity is altered in disease, which can be used to find medicines that correct those changes. The team at Quiver is deploying this technology to take on previously untreatable brain conditions, including rare genetic diseases, such as certain seizure and neurodevelopmental disorders, to common conditions, such as chronic pain and Alzheimer’s disease.


Dr. Dempsey’s passion outside of science starts with his family, his wife (and high school sweetheart) and three young daughters, be it traveling the globe to experience new cultures (or simply stare at the ocean), cooking elaborate meals on a Saturday evening, night-time reading of novels to his daughters, or attending live music around Boston. As a native of NJ, he celebrates his roots with visits to family near the Jersey Shore and, whenever possible, attendance at Springsteen concerts and Giants games. Dr. Dempsey is an avid student of history’s great entrepreneurs, spending the sparse remaining minutes of the day reading biographies and listening to podcasts, looking to extract every bit of learning towards taking on the challenges of building a great business while staying true to his family, his Quiver teammates, and his professional mission.

A man in a white lab coat and tie is standing in front of a blue background.
By Dan Lewis Foundation November 13, 2024
Stroke is a common neurological condition that damages brain cells (neurons) in the affected area, leading to a loss of the functions controlled by that region. A hopeful aspect of stroke recovery is that, over time and with rehabilitation, many individuals regain some abilities. This recovery has been linked to a process called “remapping,” where neurons in unaffected areas of the brain adapt to take over the functions of the damaged areas. Although many studies have explored this remapping phenomenon, most evidence has been indirect, based on changes in brain activation patterns or neuron connections after stroke in animal models. Direct proof that neurons change functionality after stroke has been lacking, partly because measuring neuron activity in the brain over time, especially at the necessary scale and duration, is challenging.
A man is holding a fish in his hand in front of a lake.
By Dan Lewis Foundation November 6, 2024
After a life-altering accident in October 2022, Devon Guffey’s story is about resilience and determination. His journey has been profiled in the summer 2023 issue of the Making Headway Newsletter: https://www.danlewisfoundation.org/devons-story . Hit by a drunk driver, Devon sustained severe brain and physical injuries, including axonal shearing, a traumatic frontal lobe injury, and facial fractures. Even after contracting meningitis while in a coma, Devon fought hard to survive – and today, his recovery continues to inspire us all. In late 2023, Devon worked as an assistant basketball coach at Blue River Valley, where he had once been a student. His love for sports and dedication to regaining his physical strength returned him to the gym, where his hard work paid off. Devon’s persistence earned him another job at the YMCA, guiding gym members and supporting facility upkeep. Through all the challenges—deafness in one ear, blindness in one eye, and a permanent loss of taste and smell—Devon perseveres. He recently regained his driving license, a significant milestone that symbolizes his increasing independence and cognitive and physical recovery. While each day may not show significant changes, Devon now sees his progress over time. Today, Devon speaks to groups about his journey, the dangers of drunk driving, and finding strength in adversity. His message is clear: recovery is a process, and sometimes, "can't" simply means "can't do it yet ." Every TBI is unique, and Devon’s story powerfully reminds us of the strength that comes from resilience and community. We are grateful to Devon for continuing to share his story and for his role in uplifting others facing difficult paths. His journey is a testament to the fact that we are stronger together. #BrainInjuryAwareness #DevonsJourney #Resilience #EndDrunkDriving #MakingHeadway
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