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City of Hope/Beckman Research Institute

Epigenetic Effects of Endocrine Disruptors in Fetal Germ Cells


City of Hope/Beckman Research Institute
Piroska E. Szabo, Ph.D.
pszabo@coh.org

Project Description:

Some non-genotoxic agents cause epigenetic changes, including aberrant DNA methylation. A subset of these drugs, called endocrine disrupters -synthetic chemicals resembling natural hormones-, have profound effects on development and fertility. The central hypothesis of the proposal is that developing germ cells, which undergo genome-wide epigenetic reprogramming, are especially vulnerable to the epigenetic effects of endocrine disrupters. Fetal germ cells provide an excellent study system to reveal the origin of transgenerational epigenetic effects. This proposal seeks to identify epigenetic changes in fetal germ cells after intrauterine exposure to selected endocrine disrupters.

To address the central hypothesis, the specific aims are to:

  1. Determine the methylation status of the H19/lgf2 imprinting control region (ICR) in perinatal germ cells after fetal exposure to endocrine disrupting chemicals
  2. Assess global transcription changes caused by endocrine disrupters in fetal germ cells and gonadal somatic cells
  3. Identify targets for aberrant hypermethylation by endocrine disrupters in mouse female and male germ cells


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