Normal function of the salivary glands is critical for the maintenance of oral health. Radiation treatment of patients with head and neck cancers, as well as autoimmune diseases such as Sjögren's syndrome cause cellular damage in the salivary glands that is usually severe, irreversible, and impairs normal function. The long-range goal of this laboratory is to establish therapeutic strategies for repair or regeneration of the salivary glands. Basic research projects in our laboratory include the identification and characterization of progenitor cells involved in salivary gland development and regeneration, and the factors required for differentiation of secretory cells. Applied projects address strategies for protection of the salivary glands from radiation-induced damage, and for promoting regeneration of damaged glands.