Grant: $110,625 - National Institutes of Health - Sep. 18, 2009
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Award Description: Cilia are microtubule-based organelles that have long been observed on most mammalian cells. While their presence has been known, their diverse functions in mammalian development and signaling are poorly understood. Cilia have recently been shown to be essential for hedgehog signaling, PDGFRAA signaling and in modulating Wnt responses. Tooth development in mice is initiated during embryogenesis and requires complex signaling between the oral ectoderm and underlying mesenchyme. As development progresses, ectodermal cells contribute to the superficial structures of the tooth including the enamel while the mesenchyme differentiates into many cell types including the dental pulp cells and odontoblasts which secrete dentin below the enamel. Cilia have been identified on the odontoblasts and mice with partial loss of cilia function have defects in the patterning of the teeth suggesting a role for cilia during the patterning and development of the murine dentition. The goal of this application is to investigate cilia function in tooth formation using a conditional allele of the cilia gene Tg737 and an inducible Cre recombinase to disrupt cilia at two distinct stages of tooth development. The role of cilia during tooth initiation and morphogenesis will be investigated by examining the patterning and development of teeth. After cilia disruption, the resulting teeth will be examined using histology and in situ hybridization. Humans develop a single set of permenant dentition and tooth loss requires replacement with artificial devices. A greater understanding of tooth development will aid in the development of alternative replacements or the induction of new tooth growth.
Project Description: As defined in the Award Description field.
Jobs Summary: None. (Total jobs reported: 0)
Project Status: Not Started
This award's data was last updated on Sep. 18, 2009. Help expand these official descriptions using the wiki below.