The broad, long-range objectives of this Program Project are to acquire and communicate new, fundamental knowledge on the chemistry, molecular structure, organization and physiological function of the cells and extracellular matrix of connective tissues, with particular reference to bone, cartilage, and enamel. Considerable effort will be directed to studies of tissue calcification and to the features which distinguish the skeletal and mineralized tissues from other connective tissues, since these specific characteristics are likely to play a critical role in defining their biological function. Our research projects cover all levels of anatomical hierarchy and molecular organization and the answers to important questions are being sought by integrating data from a wide diversity of scientific disciplines and techniques, including ultrastructural analysis, biochemistry, biophysics, and bioengineering. We feel that such a multifaceted but concentrated research effort on the basic biology and pathology of the skeletal system at the molecular, cellular, tissue, organ and whole organism levels will engender a more complete understanding of tissue calcification, calcified tissues and diarthrodial joints and provide a more rational basis for the diagnosis, treatment and prevention of the skeletal diseases that now disable a large part of the population.

Project Start
1983-01-01
Project End
1991-06-30
Budget Start
1988-07-01
Budget End
1989-06-30
Support Year
7
Fiscal Year
1988
Total Cost
Indirect Cost
Name
Children's Hospital Boston
Department
Type
DUNS #
076593722
City
Boston
State
MA
Country
United States
Zip Code
02115
Wang, J (2000) Spatial orientation of the microscopic elements of cortical repair bone. Clin Orthop Relat Res :265-77
Wang, J; Glimcher, M J (1999) Characterization of matrix-induced osteogenesis in rat calvarial bone defects: I. Differences in the cellular response to demineralized bone matrix implanted in calvarial defects and in subcutaneous sites. Calcif Tissue Int 65:156-65
Wang, J; Glimcher, M J (1999) Characterization of matrix-induced osteogenesis in rat calvarial bone defects: II. Origins of bone-forming cells. Calcif Tissue Int 65:486-93
Wang, J; Glimcher, M J; Mah, J et al. (1998) Expression of bone microsomal casein kinase II, bone sialoprotein, and osteopontin during the repair of calvarial defects. Bone 22:621-8
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Yang, R; Gerstenfeld, L C (1997) Structural analysis and characterization of tissue and hormonal responsive expression of the avian bone sialoprotein (BSP) gene. J Cell Biochem 64:77-93
Salih, E; Ashkar, S; Gerstenfeld, L C et al. (1997) Identification of the phosphorylated sites of metabolically 32P-labeled osteopontin from cultured chicken osteoblasts. J Biol Chem 272:13966-73
Gerstenfeld, L C; Uporova, T; Schmidt, J et al. (1996) Osteogenic potential of murine osteosarcoma cells: comparison of bone-specific gene expression in in vitro and in vivo conditions. Lab Invest 74:895-906
Yang, R; Gerstenfeld, L C (1996) Signal transduction pathways mediating parathyroid hormone stimulation of bone sialoprotein gene expression in osteoblasts. J Biol Chem 271:29839-46
Landis, W J (1996) Mineral characterization in calcifying tissues: atomic, molecular and macromolecular perspectives. Connect Tissue Res 34:239-46

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