We have mapped unique histone variant genome wide in colorectal cancer cell lines and found that that they cluster at a subset of epigenetically distinctive regions. We have mapped these regions further using cytological methods and discovered a new centromere-like region in a fragile chromosome site encompassing the myc locus. Future goals involve mapping histone variants in tumors in order to track progression of aberrant chromatin structures as a consequence of the tumorigenic process, and discovering remodelers and processes involved in the mis-localization. We are also purifying large quantities of histone variants and examining their modification status in response to tumor progression.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Investigator-Initiated Intramural Research Projects (ZIA)
Project #
1ZIABC011206-08
Application #
9343839
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
8
Fiscal Year
2016
Total Cost
Indirect Cost
Name
Basic Sciences
Department
Type
DUNS #
City
State
Country
Zip Code
Nye, Jonathan; Melters, Daniël P; Dalal, Yamini (2018) The Art of War: harnessing the epigenome against cancer. F1000Res 7:141
Nuccio, A G; Bui, M; Dalal, Y et al. (2017) Mass Spectrometry-Based Methodology for Identification of Native Histone Variant Modifications From Mammalian Tissues and Solid Tumors. Methods Enzymol 586:275-290
Melters, Daniël P; Nye, Jonathan; Zhao, Haiqing et al. (2015) Chromatin Dynamics in Vivo: A Game of Musical Chairs. Genes (Basel) 6:751-76
Quénet, Delphine; Dalal, Yamini (2012) The CENP-A nucleosome: a dynamic structure and role at the centromere. Chromosome Res 20:465-79