Plasticity of Hormonal Response Permits Rapid Gene Expression Reprogramming

Gene expression reprogramming may allow cancer cell growth as well as normal differentiation

Gene expression is the process of converting the genetic information encoded in DNA into a final gene product such as a protein or any of several types of RNA. Scientists have long thought that the gene programs regulated by different physiological processes throughout the body are robustly pre-determined and relatively fixed for every specialized cell. But a new study by researchers from the University of California, San Diego School of Medicine reveals the unsuspected plasticity of some of these gene expression programs. … Read the full story from the UCSD Newsroom

M. Geoffrey Rosenfeld, MD

Co-principal investigator of the study is Dr. M. Geoffrey Rosenfeld (pictured at left). M. Geoffrey Rosenfeld, MD, is Professor of Medicine in the Division of Endocrinology and Metabolism and Howard Hughes Medical Institute investigator.

Department of Medicine coauthor Christopher K. Glass, MD, PhD, is Professor of Medicine in the Division of Endocrinology and Metabolism and Professor of Cellular and Molecular Medicine.

Read the published study in Nature (free full text).

Tumor Metastasis with a Twist

Protein is key to early embryonic development, but later promotes spread of cancer

In the early stages of human embryogenesis, a transcription factor called Twist1 plays a key regulatory role in how the embryo assumes form and function. Much later in life, however, researchers at the University of California, San Diego School of Medicine, say Twist1 can re-emerge, taking a darker and more deadly turn…. Read the full story from the UCSD Newsroom

Dr. Lucila Ohno-Machado (pictured) and Jihoon Kim of the Division of Biomedical Informatics are among the authors of the study report. Lucila Ohno-Machado, M.D., Ph.D., is professor and chief of the division; Jihoon Kim, M.S., is senior statistician. Read the published article (full text).

Photo of Dr. Ohno-Machado: John Hanacek, Calit2 UC San Diego.