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Federico Bernal, Ph.D.

Portait Photo of Federico Bernal
Lymphoid Malignancies Branch
Investigator
Center for Cancer Research
National Cancer Institute
Building 10 - Magnuson CC, Room 4N109
Bethesda, MD 20892-1374
Phone:  
301-496-6027
Fax:  
301-496-9956
E-Mail:  
bernalf@mail.nih.gov

Biography

Dr. Bernal did his undergraduate training at the Massachusetts Institute of Technology graduating in 1997 with degrees in chemistry and chemical engineering. He obtained his Ph.D. from The Scripps Research Institute in 2002 after performing work on the development of synthetic methodologies for the construction of complex marine natural products in the laboratory of K. C. Nicolaou. Dr. Bernal then returned to Cambridge, MA to undergo postdoctoral training in chemical biology at Harvard University in the group of Gregory L. Verdine. He then continued his foray into cancer chemical biology in the laboratory of Loren D. Walensky at the Dana-Farber Cancer Institute. He established his laboratory in the Metabolism Branch (now the Lymphoid Malignancies Branch) of the Center for Cancer Research at NCI in 2010. His research focus involves the investigation and manipulation of cancer pathogenesis pathways with synthetic molecules.

Research

Our laboratory is interested in the study of the molecular interactions involved in cancer pathogenesis using designed organic molecule. Through an interdisciplinary approach that melds the fields of organic chemistry, biochemistry and pharmacology, we have developed compounds that allow us to probe pathways that are deregulated in cells.

An Exhaustive Exploration of p53 Function

Our focus has been the study of the p53 tumor suppressor pathway and its modulation with synthetic molecules. p53 function is altered in a majority of all cancers by either its degradation, sequestration, deletion or mutation. Regulation of p53 is mediated by the oncogenes HDM2 and HDMX, and through our work with the p53-derived hydrocarbon stapled peptide SAH-p53-8 we have shown how disruption of the p53-HDM2 and p53-HDMX complexes restores the activity of p53 in cancers that overexpress either HDM2 or HDMX. This compound has allowed us to establish a pharmacologic blueprint that helps determine the context in which inhibitors of the p53-HDM2 and p53-HDMX interactions can be used therapeutically. In collaboration with J.C. Marine's laboratory at the KU-Leuven in Belgium, we have demonstrated that HDMX overexpression is responsible for the resistance of metastatic melanoma to traditional chemotherapeutic agents.

SAH-p53-8 has been an extremely valuable tool that has also helped in the exploration of p53 functions that are independent of its transcriptional activation abilities. We have found that SAH-p53-8 can modulate the migration and invasion of triple negative breast cancers (TNBC) harboring p53 mutations. In order to investigate the molecular targets that drive these phenomena we are developing compounds based on SAH-p53-8 that will allow us to determine the details of the pathways that mediate migration and invasion.

Expansion of the Stapled Peptide Methodology to Unconventional Targets

We have begun investigations in several arenas to determine the applicability of the stapled peptide methodology to other molecular targets. The majority of the research in this arena has focused on the cancer field, but we have expanded its role to other phenomena and biological systems. These include the use of SAH-p63 and SAH-p73 compounds to study the factors that govern cellular differentiation and the development peptides capable of reaching targets in single cell organisms. We are also exploring the capability of stapled peptides to alter the conformational states of proteins and study the structural aspects of protein-protein interactions.

Positions

Applicants interested in postdoctoral work combining synthetic organic chemistry and cancer biology should contact Dr. Bernal by e-mail about current availability and time frames.

Postdoctoral candidates with strong experience in organic chemistry, medicinal chemistry, cell biology, and/or structural biology work should send a brief cover letter, C.V. and arrange for three letters of reference to be sent to Dr. Bernal.

We have no openings available at the time.

This page was last updated on 2/24/2014.