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DePamphilis Lab: Section on Eukaryotic DNA Replication and Gene Regulation

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Overview

Mel DePamphilis, who heads the Section on Eukaryotic DNA Replication, studies the control of DNA replication and gene expression during mammalian development. His current work focuses on three questions: how genome duplication is restricted to once per cell division in proliferating cells; how these mechanisms are circumvented during mammalian development to allow some cells to differentiate into viable, nonproliferating polyploid cells; and how these mechanisms are related to human pathologies such as cancer. The Section recently discovered a novel role for the protein geminin in preventing DNA re-replication during mitosis and showed that suppression of geminin could be used to kill cancer cells without harming normal cells. The Section is currently using high-throughput screening technology to look for anti-geminin drugs and for other genes essential for proliferation of cancer cells, but not for normal cells. In addition, the group discovered novel roles for the transcription factor TEAD4 in regulating energy homeostasis during preimplantation development aa well as for the CDK inhibitors p57/Kip2 and p21/Cip1 and the DNA damage–response protein kinase CHK1 in triggering differentiation of trophoblast stem cells into trophoblast giant cells.

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Last Updated Date: 11/30/2012
Last Reviewed Date: 11/30/2012

Contact Information

Name: Prof Melvin L Depamphilis
Senior Investigator
Section on Eukaryotic DNA Replication
Phone: 301-402-8234
Fax: 301-480-9354
Email: depamphm@mail.nih.gov

Staff Directory
Vision National Institutes of Health Home BOND National Institues of Health Home Home Storz Lab: Section on Environmental Gene Regulation Home Machner Lab: Unit on Microbial Pathogenesis Home Division of Intramural Population Health Research Home Bonifacino Lab: Section on Intracellular Protein Trafficking Home Lilly Lab: Section on Gamete Development Home Lippincott-Schwartz Lab: Section on Organelle Biology