This proposal seeks to create a unique biomolecular dataset for the hematopoiesis research community by defining the molecular basis for functional heterogeneity among hematopoietic stem and progenitor cells (HSPC) in vivo in the mouse. This will be accomplished at a clonal level, sequentially using an engineered mouse strain that permits clonal tracking, cell isolation and molecular analyses. The bone marrow microenvironment will be analyzed under similar conditions of regions in physical proximity to hematopoietic stem and progenitor cells. Combined this dataset will provide a comprehensive molecular characterization of highly annotated in vivo cell behaviors under unperturbed and stress conditions. It involves three investigators with distinctive and complementary areas of expertise in the field of hematopoiesis, biomolecular computation and high resolution in vivo imaging. It involves distinctive tools generated by the interaction between these investigators and these disciplines. Successful accomplishment of this proposal will result in a unique resource coupling molecular data with functional attributes of individual clones of blood forming cells. It will be useful for the field and guide future studies by others to determine the molecula drivers of specific functions of stem and progenitor cells.

Public Health Relevance

This proposal focuses on creating a resource for hematology researchers. It combines detailed functional information of clones of cells in a live animal with their molecular signatures. In this way, molecular understanding of complex behavior in unperturbed and stress settings will be facilitated with the ultimate goal of then using the information to improve blood cell production in patients.

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
Resource-Related Research Projects (R24)
Project #
5R24DK103074-03
Application #
9312803
Study Section
Special Emphasis Panel (ZDK1)
Program Officer
Bishop, Terry Rogers
Project Start
2015-08-01
Project End
2019-06-30
Budget Start
2017-07-01
Budget End
2018-06-30
Support Year
3
Fiscal Year
2017
Total Cost
Indirect Cost
Name
Harvard University
Department
Anatomy/Cell Biology
Type
Schools of Arts and Sciences
DUNS #
082359691
City
Cambridge
State
MA
Country
United States
Zip Code
02138
Yu, Vionnie W C; Yusuf, Rushdia Z; Oki, Toshihiko et al. (2017) Epigenetic Memory Underlies Cell-Autonomous Heterogeneous Behavior of Hematopoietic Stem Cells. Cell 168:944-945
Yu, Vionnie W C; Yusuf, Rushdia Z; Oki, Toshihiko et al. (2016) Epigenetic Memory Underlies Cell-Autonomous Heterogeneous Behavior of Hematopoietic Stem Cells. Cell 167:1310-1322.e17