Northwestern University Feinberg School of Medicine
Faculty Profiles
Laura  Dada, PhD

Laura Dada, PhD

Research Associate Professor of Medicine (Pulmonary and Critical Care)

Focus of Work

Bio

The major goal of our research is to study the role of the Na,K-ATPase subunits in the regulation of alveolar epithelial function in normal and hypoxic conditions. We will shift the emphasis from the transport function of the Na,K-ATPase to its important role in stabilizing intercellular junctions and hence in alveolar epithelial integrity. Hypoxemia and injury of the alveolar-capillary barrier might result not only in a decrease in Na,K-ATPase activity but also in weakening interactions between...[Read full text]The major goal of our research is to study the role of the Na,K-ATPase subunits in the regulation of alveolar epithelial function in normal and hypoxic conditions. We will shift the emphasis from the transport function of the Na,K-ATPase to its important role in stabilizing intercellular junctions and hence in alveolar epithelial integrity. Hypoxemia and injury of the alveolar-capillary barrier might result not only in a decrease in Na,K-ATPase activity but also in weakening interactions between the Na,K-ATPase ß1 subunits in neighboring cells. We will determine the molecular mechanisms regulating these ß1:ß1 interactions and design strategies to strengthen them as a way to enhance the function of the alveolar epithelial barrier. We are also interested in the role of FXYD5, which regulates cell-cell adhesion and the integrity of the alveolar epithelium by inhibiting the intercellular interaction between the Na,K-ATPase ß1 subunits of neighboring cells in a competitive mode. Given the fact that FXYD proteins are expressed and interact with the Na,K-ATPase in a tissue-specific way, understanding the molecular mechanisms of FXYD5-mediated regulation of ß1:ß1 interactions and thus alveolar epithelial barrier function may lead to novel, more effective treatment of acute lung injury.[Shorten text]

Keywords


Education and Certification

  • PhD: University of Buenos Aires, Biochemistry (1996)

Contact

312/908-8163

McGaw Pavilion Suite M-300
240 E Huron
Chicago IL 60611

Visit Laura Dada's Northwestern Scholars Profile to see the list of publications.