Overview: I am nominating myself for a NIH Director s Pioneer Award, which ifawarded, I would use to investigate homology-dependent epigenetic mechanisms of generegulation in animal models and eventually humans. One aspect of my research has been tostudy a phenomenon called paramutation, which was discovered in plants and involves allelecommunication that leads to a mitotically and meiotically heritable change in gene expression.My hypothesis is that the paradigm-shifting mechanisms of allele communication, which wehave uncovered operating in plant chromatin, also exists in mammals and could explain theaberrant segregation of certain genetic diseases.I have organized this essay in 3 sections. In Background and Significance, I defineepigenetics, briefly summarize the fields current understanding of mechanisms and discuss itsimportance for understanding a number of human diseases. In Prior and Current Work, Isummarize our prior work on paramutation, using this as a basis for illustrating my approach toscience providing evidence for why this nomination should be considered in the NDPA process.In New Research Direction, I briefly describe the new approaches I am proposing, explain howthis builds on my past work, and discuss why the NDPA process provides a unique opportunityto pursue this work.

Agency
National Institute of Health (NIH)
Institute
Office of The Director, National Institutes of Health (OD)
Type
NIH Director’s Pioneer Award (NDPA) (DP1)
Project #
5DP1OD000575-04
Application #
7492642
Study Section
Special Emphasis Panel (ZGM1-NDPA-G (P3))
Project Start
2005-09-30
Project End
2010-07-31
Budget Start
2008-08-01
Budget End
2009-07-31
Support Year
4
Fiscal Year
2008
Total Cost
$737,799
Indirect Cost
Name
University of Arizona
Department
Other Basic Sciences
Type
Schools of Earth Sciences/Natur
DUNS #
806345617
City
Tucson
State
AZ
Country
United States
Zip Code
85721
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Arteaga-Vazquez, Mario Alberto; Chandler, Vicki Lynn (2010) Paramutation in maize: RNA mediated trans-generational gene silencing. Curr Opin Genet Dev 20:156-63
Lu, Y C; Touzjian, N; Stenzel, M et al. (1990) Identification of cis-acting repressive sequences within the negative regulatory element of human immunodeficiency virus type 1. J Virol 64:5226-9