Frontotemporal dementia (FTD), a devastating, rapidly progressive neurodegenerative disease, accounts for 15-20% of all dementia cases and particularly common in patients under 65 years of age. FTD patients suffer progressive neurodegeneration in the frontal lobes and other brain regions, resulting in behavioral changes, and memory and motor neuron deficits. Compared with other age-dependent neurodegenerative diseases, the molecular, cellular, and genetic bases of FTD are poorly understood, although there is increasing recognition of pathological overlap with other neurodegenerative diseases. Genetic causes are estimated to account for ~40% of FTD, and since 1998, dominant mutations in four causative genes have been identified. These include mutations of tau, valosin-containing protein (VCP), CHMP2B, and progranulin. The identification of these genes allows for the generation of sorely needed animal models of FTD. The overall goal of this proposal it to generate murine models for FTD, focusing on progranulin and VCP. Murine models will enable detailed study of the pathogenesis, testing of genetic interactions between contributing mechanisms, and testing of emerging therapies.
Aim 1 is to generate mouse models for FTD caused by progranulin deficiency. Specifically, we will generate mice lacking progranulin in the whole body and, with Cre-LoxP methodology, in neurons and microglia. Additionally, we will generate mice that harbor a disease- specific nonsense mutation (corresponding to the human mutation R493X), which will provide a model for testing therapies that target non-sense mutations.
Aim 2 is to generate transgenic mice expressing human VCP with an FTD mutation (R155H) in neurons. We will also test whether a genetic interaction exists between VCP mutations and Pgrn mutations by crossing the different models. The phenotypes of each of these potential disease models will be extensively analyzed, many aspects with the assistance of expert local collaborators.These.mouse models will enable us to complement on-going cell-based studies of disease pathogenesis with in vivo testing of emerging hypotheses. The mice will also be deposited in public repositories, making them generally available to the research community.

Public Health Relevance

(Seeinstructions): Dementias due to progressive loss of brain function are huge health problems confronting our population. Frontotemporal dementia (FTD), a rapidly progressive and devastating disease, is less well known than Alzheimer's disease but is emerging as a relatively common cause of dementia. Currently, there are no cures and there are no proven animal models. We propose to generate mouse models of FTD, both to study how the disease occurs and to provide a means to test new therapies.

National Institute of Health (NIH)
National Institute on Aging (NIA)
Specialized Center (P50)
Project #
Application #
Study Section
Special Emphasis Panel (ZAG1-ZIJ-4)
Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
University of California San Francisco
San Francisco
United States
Zip Code
Mez, Jesse; Mukherjee, Shubhabrata; Thornton, Timothy et al. (2016) The executive prominent/memory prominent spectrum in Alzheimer's disease is highly heritable. Neurobiol Aging 41:115-21
Barton, Cynthia; Ketelle, Robin; Merrilees, Jennifer et al. (2016) Non-pharmacological Management of Behavioral Symptoms in Frontotemporal and Other Dementias. Curr Neurol Neurosci Rep 16:14
Rabinovici, Gil D (2016) Amyloid biomarkers: pushing the limits of early detection. Brain 139:1008-10
Voyle, N; Kim, M; Proitsi, P et al. (2016) Blood metabolite markers of neocortical amyloid-β burden: discovery and enrichment using candidate proteins. Transl Psychiatry 6:e719
Schott, Jonathan M; Crutch, Sebastian J; Carrasquillo, Minerva M et al. (2016) Genetic risk factors for the posterior cortical atrophy variant of Alzheimer's disease. Alzheimers Dement 12:862-71
Yokoyama, Jennifer S; Desikan, Rahul S (2016) Association of Alzheimer Disease Susceptibility Variants and Gene Expression in the Human Brain-Reply. JAMA Neurol 73:1255
LoBue, Christian; Denney, David; Hynan, Linda S et al. (2016) Self-Reported Traumatic Brain Injury and Mild Cognitive Impairment: Increased Risk and Earlier Age of Diagnosis. J Alzheimers Dis 51:727-36
Mair, Waltraud; Muntel, Jan; Tepper, Katharina et al. (2016) FLEXITau: Quantifying Post-translational Modifications of Tau Protein in Vitro and in Human Disease. Anal Chem 88:3704-14
Oh, Hwamee; Madison, Cindee; Baker, Suzanne et al. (2016) Dynamic relationships between age, amyloid-β deposition, and glucose metabolism link to the regional vulnerability to Alzheimer's disease. Brain 139:2275-89
Guo, Christine C; Sturm, Virginia E; Zhou, Juan et al. (2016) Dominant hemisphere lateralization of cortical parasympathetic control as revealed by frontotemporal dementia. Proc Natl Acad Sci U S A 113:E2430-9

Showing the most recent 10 out of 390 publications