Aerosol Dosimetry in the Lung : from Dysfunction to Treatment

Jessica Oakes, Ph.D.
Assistant Professor, Department of Bioengineering
Notheastern University
Thu, February 24, 2022 at 2:00 PM

The respiratory system is one of the primary portals into the body and is responsible for gas exchange and protection from airborne foreign substances. The extent of deposition, retention, and clearance of inhaled particles is a complex interaction of physical forces, biological mechanisms, and subject's pathophysiology. Aerosol particles that originate from toxic sources (e.g., wildland fires, cigarettes/e-cigarettes, industrial emissions) can cause local and systemic inflammation, which when exposed to chronically, can lead to dysfunction of nearly every system in the body. Alternatively, particles may be designed for therapeutic purposes to treat, for example, asthma or respiratory distress syndrome. This talk will first focus on development of a chronic exposure platform to model occupation exposure in the context of wildland firefighters. The resulting changes in cardiopulmonary function following chronic exposure will be discussed. Switching gears, the second half of the talk will highlight the development of physiologically based computational models to estimate and optimize deposited therapeutic dose in asthmatic subjects.

Jessica Oakes, Ph.D.

Jessica Oakes is a tenure-track Assistant Professor in the Department of Bioengineering at Northeastern University in Boston, Massachusetts. Following completion of her PhD in 2013 (UC San Diego), she continued research in aerosol medicine as a postdoc fellow at INRIA Paris, France and at UC Berkeley. Now, Jessica directs the Respiratory Innovation and Simulation Team (RESIST) and co-directs the Integrated Cardiovascular and Pulmonary (ICAP) team. Her research group focuses on combining experimental and numerical techniques to predict, quantify, and optimize aerosol dosimetry, and the corresponding structure/function response, in the lung. She is co-leading a FEMA/DHS Assistance to Firefighters grant program that is focused on elucidating the cardiorespiratory health impact of wildfire smoke.  Her work is also supported with funding from NIH NHLBI and the Bill & Melinda Gates Foundation.