Dr. David W. Litchfield
Professor
Department of Biochemistry
University of Western Ontario
Canada
Biography
Dr. David W. Litchfield, Ph.D. University of Western Ontario, Postdoctoral Fellow, Howard Hughes Medical Institute & University of Washington, Professor; Vice Dean, Research & Innovation at Schulich of Biochemistry at University of Western Ontario, Canada.
Research Interest
Research in our laboratory is directed towards elucidation of the molecular mechanisms that control the growth and survival of mammalian cells since defects in these mechanisms underlie many human diseases including cancer, atherosclerosis, neurological disorders and immune dysfunction. For our research, we employ a variety of complementary strategies involving molecular and cellular biology, structural biology, functional proteomics and bioinformatics. In particular, we are interested in understanding why cancer cells continue to divide in the absence of the appropriate cues and how they can acquire enhanced survival as compared to normal cells. Our studies have been primarily focused on components of regulatory signal transduction pathways, protein kinase CK2 and two of its novel partners (namely CKIP-1 and Pin1), that are frequently expressed at inappropriate levels in cancer cells and that promote leukemia and/or tumor formation when expressed at abnormal levels in mice. In addition to improving our understanding of the molecular basis of tumorigenesis, we hope that our studies will help fulfill the promise of protein kinases such as CK2 as potential targets for molecular targeted therapies.
Publications
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Canton DA, Olsten ME, Kim K, Doherty-Kirby A, Lajoie G, Cooper JA, Litchfield DW. The pleckstrin homology domain-containing protein CKIP-1 is involved in regulation of cell morphology and the actin cytoskeleton and interaction with actin capping protein. Molecular and cellular biology. 2005 May 1;25(9):3519-34.
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Bosc DG, Graham KC, Saulnier RB, Zhang C, Prober D, Gietz RD, Litchfield DW. Identification and characterization of CKIP-1, a novel pleckstrin homology domain-containing protein that interacts with protein kinase CK2. Journal of Biological Chemistry. 2000 May 12;275(19):14295-306.
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Litchfield DW. Protein kinase CK2: structure, regulation and role in cellular decisions of life and death. Biochemical Journal. 2003 Jan 1;369(1):1-5.