Marrow myeloid cells can be separated into classes which exhibit different self-renewal capabilities carrying morphological features with respect to maturation and differing immunophenotype. The greater the self-renewal potential, the less frequent are these cells. Fluorescent activated cell sorting (FACS) has been used to develop populations of early myeloid cells which are enriched with the phenotype CD34+CD38-Lin-Thy-1 +(lo)Rho(lo). These cells have been shown to have high proliferative potential. Some AML cells show negativity for the Thy-1+lo phenotype. The t(15; 17) AML subset has been shown to be negative for CD34+CD33- cells. This data has suggested to some that the good prognosis AML subsets do not penetrate into the early myeloid compartment, whereas the poor prognostic subsets may contain cells with the immunophenotype CD34+CD38-CD33-Thy-1(lo). We will test this hypothesis by using high speed FACS cell sorting to develop populations of cells from AML patients which have the CD34+CD38- Lin-Thy+1(lo)Rho(lo) phenotype and then test this by FISH and PCR for evidence of AML cells.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Program Projects (P01)
Project #
5P01CA055164-08
Application #
6102721
Study Section
Project Start
1999-06-07
Project End
2000-03-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
8
Fiscal Year
1999
Total Cost
Indirect Cost
Name
University of Texas MD Anderson Cancer Center
Department
Type
DUNS #
001910777
City
Houston
State
TX
Country
United States
Zip Code
77030
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