We plan to use a powerful new technology, massively parallel signature sequencing, to determine the complete transcriptomes (all mRNAs) of four hematopoietic stem cell populations, long-term hematopoietic stem cells (LT-HSC), short-term hematopoietic stem cells (ST-HSC), common lymphoid progenitor (CLP), and common myeloid progenitor (CMP), as well as the model hematopoietic cell line (EML-C1). We will place all of these identified genes (mRNAs) on DNA microarrays and oligonucleotide arrays to interrogate the gene expression patterns of selected hematopoietic stem cell populations. For example, we will employ gene knockout experiments to perturb an important signal transduction pathway in hematopoietic development, Wnt-beta-catenin, ion a cell line (EML-C1) using systems approaches. We will also use quantitative methods of proteomics to explore the protein expression patterns in hematopoietic stem cells and a progenitor cell line (EML-C1) using systems approaches. We will also use quantitative methods of proteomics to explore the protein expression patterns in hematopoietic stem cells and a progenitor cell line (EML-C1). We will identify orthologous and paralogous relationships between murine and Drosophila genes involved in stem cell biology. From these analyses will come a heightened understanding of the genes and informational pathways involved with murine hematopoietic stem cell self-renewal and development.

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
Research Program Projects (P01)
Project #
2P01DK053074-06
Application #
6583557
Study Section
Special Emphasis Panel (ZDK1)
Project Start
2002-09-01
Project End
2007-08-31
Budget Start
Budget End
Support Year
6
Fiscal Year
2002
Total Cost
Indirect Cost
Name
Stanford University
Department
Type
DUNS #
800771545
City
Stanford
State
CA
Country
United States
Zip Code
94305
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