Research
Dr. Denise Al Alam and her research team are dedicated to uncovering the fundamental biological mechanisms that drive human lung development, particularly the complex process of branching morphogenesis that forms the lung’s tree-like airway architecture, and alveologenesis that forms the gas exchange units necessary for breathing. Her laboratory specializes in the development of the human lung, with a strong emphasis on defining human-specific mechanisms of growth and differentiation. A cornerstone of Dr. Al Alam’s work is the identification of species-specific differences between human and mouse lung development. Her group was among the first to demonstrate that progenitor cell populations in the developing human lung possess distinct molecular and cellular characteristics compared to those in traditional animal models, underscoring the limitations of relying solely on rodent systems to study human lung biology.
Building on these discoveries, the Al Alam Laboratory focuses on three interconnected areas: regulation of lung progenitor cells by key signaling pathways such as FGF, WNT, and SHH; characterization of the mesenchymal niche that provides the critical microenvironment for progenitor cell maintenance and differentiation; and the development of human-centric models, including human pluripotent stem cell systems, to better translate basic science findings into clinical relevance. A major and growing focus of her research is understanding how these developmental processes are altered in Trisomy 21 (Down syndrome).
Her work investigates how disruptions in progenitor cell behavior, signaling pathways, and mesenchymal support contribute to the structural and functional lung abnormalities frequently observed in individuals with Trisomy 21. By applying human-specific models, her team aims to uncover the developmental origins of these pulmonary complications and identify potential therapeutic targets. Through the integration of developmental biology, molecular signaling, and disease modeling, Dr. Al Alam’s research provides critical insight into both normal lung formation and the pathogenesis of congenital lung diseases, including bronchopulmonary dysplasia and Trisomy 21-associated conditions. Ultimately, her work lays the foundation for advancing regenerative medicine and developing targeted strategies to improve respiratory health in vulnerable pediatric populations.