The applicant is a physician-scientist with an interest in age associated muscle disorders. This award will free him from clinical duties, allow him to focus on research and become a leader in the field. One age associated muscle disorder is due to mutations in valosin containing protein (VCP) which causes IBMPFD or inclusion body myopathy (IBM) associated with Paget's disease of the bone (PDB) and fronto-temporal dementia (FTD). Muscle weakness is the most prevalent phenotypic feature. Although IBMPFD itself is rare, each component (IBM, PDB and FTD) is exceedingly common in the general population. VCP mutations disrupt autophagosome maturation resulting in dysfunctional autophagy and muscle weakness. We propose to evaluate 1) Autophagosome maturation in skeletal muscle;2) Characterize a novel VCP complex necessary for the autophagic degradation of ubiquitinated proteins. 3) Evaluate the role of VCP and its cofactors on autophagosome maturation. The applicant will learn new techniques, forge new collaborations and develop a research program in his lab to understand the interplay between protein degradation pathways in age muscle disease. The K02 award mechanism will allow the applicant to focus full time on research and become a leader in the field.

Public Health Relevance

Pathologic protein inclusions accumulate in many divergent disease states associated with aging like inclusion body myositis and dementia. We hypothesis that an impairment in autophagy conferred by mutations in the protein VCP result in inclusion body myopathy associated with paget's disease of the bone and fronto-temporal dementia (IBMPFD). Understanding IBMPFD will lend insight into the treatment of other more common age related disorders.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Scientist Development Award - Research (K02)
Project #
5K02AG042095-02
Application #
8549058
Study Section
National Institute on Aging Initial Review Group (NIA)
Program Officer
Velazquez, Jose M
Project Start
2012-09-30
Project End
2017-05-31
Budget Start
2013-09-01
Budget End
2014-05-31
Support Year
2
Fiscal Year
2013
Total Cost
$134,231
Indirect Cost
$9,943
Name
Washington University
Department
Neurology
Type
Schools of Medicine
DUNS #
068552207
City
Saint Louis
State
MO
Country
United States
Zip Code
63130
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