Cell surface heparan sulfate proteoglycans are widely distributed throughout animal tissues, and are involved in critical cell functions such as cell-cell and cell-extracellular matrix interactions. Their interaction with a variety of molecules including growth factors, viruses, and extracellular matrix proteins, have important biological functions. The purpose of this project is to study the metabolism of cell surface heparan sulfate proteoglycans with focus on mechanisms involved in their endocytosis and subsequent intracellular processing. Topics of present interest include: (1) characterization of the intracellular trafficking and processing pathway for the dermatan sulfate proteoglycan which may enter the nuclear compartment; (2) further development of the procedure to isolate quantitatively and purify nuclei from UMR 106 osteoblastic cells and granulosa cells; and (3) define the intracellular subcompartments where the intercalated heparan sulfate proteoglycans are selectively degraded; (4) study functional roles of cell surface heparan sulfate proteoglycans in infection processes by human immunodeficiency virus and herpes simples virus-I, and (5) study functions of cell surface heparan sulfate proteoglycans in oral epithelial cells.

Agency
National Institute of Health (NIH)
Institute
National Institute of Dental & Craniofacial Research (NIDCR)
Type
Intramural Research (Z01)
Project #
1Z01DE000549-03
Application #
3753572
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
3
Fiscal Year
1994
Total Cost
Indirect Cost
Name
National Institute of Dental & Craniofacial Research
Department
Type
DUNS #
City
State
Country
United States
Zip Code