This is a request for an ADAMHA Research Career Development Award for Paul Worley M.D. Over the past year, there have been several advances in the P.I.'s scientific career which significantly strengthen his candidacy for this award. The focus of the P.I.'s laboratory is to examine cellular mechanisms involved in long-term neuronal responses to synaptic activity. This work is broadly relevant to understanding cortical development as well as aspects of mental health. Genes that are rapidly induced by neuronal activity, and that may be involved in long-term responses, have been cloned from stimulated hippocampus using differential cDNA techniques. Immediate early genes (IEGs) that have been published, or that are currently in review for publication, from our laboratory include a mitogen-inducible cyclooxygenase, termed Cox-2, a novel, inducible member of the Ras family of small GTP-binding proteins, termed Rheb, a zinc-finger transcription factor, termed Egr-3, a member of the TGF beta family of growth factors/signaling molecules, a novel member of the pentraxin family of secreted, calcium-dependent lectins, termed Narp and a novel dendrite and cytoskeleton associated protein, termed Arc. A proposal to study the cellular function of three of these IEGs was recently awarded funding under the RFA """"""""Molecular Mechanisms of Cortical Development"""""""" from the NIMH. In addition, the P.I.'s laboratory, in collaboration with Dr. Carol Barnes of the University of Arizona, has made several important observations regarding the physiology of long-term plasticity and the regulation of these genes by synaptic activity in normal and aged rodents. The P.I.'s background includes clinical training in Neurology at Johns Hopkins Hospital and basic science training in the laboratories of Drs. Solomon Snyder and Daniel Nathans. Activities of the P.I. include teaching in the Medical School and the Neuroscience Graduate Program, as well as mentoring three postdoctoral fellows and four Ph.D. students in his laboratory. Plans for career development focus on the cell biological function of the IEGs isolated in his laboratory and their role in long- term neuronal responses to activity and cortical development. The Department of Neuroscience provides an optimal environment for research and scientific development for the P.I.. An RSDA would provide a secure source of salary that is essential for the P.I.'s future career development.

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Research Scientist Development Award - Research (K02)
Project #
5K02MH001152-04
Application #
2674376
Study Section
Molecular, Cellular, and Developmental Neurobiology Review Committee (MCDN)
Project Start
1995-09-30
Project End
2000-04-30
Budget Start
1998-05-01
Budget End
1999-04-30
Support Year
4
Fiscal Year
1998
Total Cost
Indirect Cost
Name
Johns Hopkins University
Department
Neurosciences
Type
Schools of Medicine
DUNS #
045911138
City
Baltimore
State
MD
Country
United States
Zip Code
21218
Szumlinski, Karen K; Dehoff, Marlin H; Kang, Shin H et al. (2004) Homer proteins regulate sensitivity to cocaine. Neuron 43:401-13
Diagana, Thierry T; Thomas, Ulrich; Prokopenko, Sergei N et al. (2002) Mutation of Drosophila homer disrupts control of locomotor activity and behavioral plasticity. J Neurosci 22:428-36
Lu, W; Marinelli, M; Xu, D et al. (2002) Amphetamine and cocaine do not increase Narp expression in rat ventral tegmental area, nucleus accumbens or prefrontal cortex, but Narp may contribute to individual differences in responding to a novel environment. Eur J Neurosci 15:2027-36
Potschka, H; Krupp, E; Ebert, U et al. (2002) Kindling-induced overexpression of Homer 1A and its functional implications for epileptogenesis. Eur J Neurosci 16:2157-65
Boudin, H; Doan, A; Xia, J et al. (2000) Presynaptic clustering of mGluR7a requires the PICK1 PDZ domain binding site. Neuron 28:485-97
Tu, J C; Xiao, B; Naisbitt, S et al. (1999) Coupling of mGluR/Homer and PSD-95 complexes by the Shank family of postsynaptic density proteins. Neuron 23:583-92
Beilharz, E J; Zhukovsky, E; Lanahan, A A et al. (1998) Neuronal activity induction of the stathmin-like gene RB3 in the rat hippocampus: possible role in neuronal plasticity. J Neurosci 18:9780-9
Tu, J C; Xiao, B; Yuan, J P et al. (1998) Homer binds a novel proline-rich motif and links group 1 metabotropic glutamate receptors with IP3 receptors. Neuron 21:717-26
Xiao, B; Tu, J C; Petralia, R S et al. (1998) Homer regulates the association of group 1 metabotropic glutamate receptors with multivalent complexes of homer-related, synaptic proteins. Neuron 21:707-16
Ingi, T; Krumins, A M; Chidiac, P et al. (1998) Dynamic regulation of RGS2 suggests a novel mechanism in G-protein signaling and neuronal plasticity. J Neurosci 18:7178-88

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