UCI-led researchers receive $3 million NIH grant for 4D Nucleome project

The National Institutes of Health has awarded a team of researchers, led by the University of California, Irvine's Xiangmin Xu, PhD, a five-year, $3 million grant for a project titled, "Single-Cell Analysis of Aging-Associated 4D Nucleome in the Human Hippocampus."

Now, as part of the 4D Nucleome consortium, Xu, a professor of anatomy and neurobiology and director of the Center for Neural Circuit Mapping at the UCI School of Medicine, together with MPIs, Carl Wayne Cotman, PhD, a professor of neurology and founding director of the UCI Institute for Brain Aging and Dementia, and Bing Ren, PhD, a professor of Cellular and Molecular Medicine at the University of California, San Diego, will work to build an understanding of aging-associated chromatin architecture changes in single cell nuclei.

The three dimensional nuclear organization and its relationship with the regulation of gene expression programs are thought to have widespread and profound implications for human health and disease. The proposed research will help to transform our ability to understand the mechanisms of chromatin organization and function in the context of human brain aging.

Our proposed research will examine the molecular 4D nucleome changes that occur in human brain region of hippocampus during the course of aging, and the positive effects of physical activity. With the support of this grant, our team will produce multi-omics cell atlases of the human hippocampus to delineate molecular profiles of normal aging, and uncover potential transcriptional regulatory programs that are impacted by aging. We will share this data with the entire scientific community."

Xiangmin Xu, professor of anatomy and neurobiology and director of the Center for Neural Circuit Mapping at the UCI School of Medicine

This cooperative agreement award, number U01DA052769, is funded through the 4D Nucleome (4DN) NIH Common Fund Program, which was launched in 2015 with the goal of developing the tools and resources that would enable the characterization of the three-dimensional structure and dynamics of mammalian genomes and provide deeper mechanistic insights into how the nucleus is functionally organized.

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