Abstract
Currently one of the few molecules that equally excites a neuroscientist, a cancer biologist, an immunologist, and a developmental biologist is progranulin (GRN/Grn)—a pluripotent growth factor that plays key roles in cell survival, proliferation, development, tissue regeneration, inflammation, wound healing, and angiogenesis. However, the molecular pathways associated with GRN signaling involved in these varied physiological processes are not understood. Gene inactivation has been considered as one of the best methods to delineate the biological role of a protein, and gene targeting is a direct means to disrupt a gene’s open reading frame and block its expression, for instance, in a mouse. Such a gene knockout animal model also served as an in vivo disease model where loss of gene or its function is thought to be the primary disease mechanism, as is the case with progranulin loss of function in frontotemporal lobar degeneration (FTLD). It is estimated that up to half of the cases of familial, dominant FTLD might be due to GRN haploinsufficiency. To understand the molecular pathways associated with GRN loss, constitutive and conditional progranulin knockout (Grn−/−) mice have also been constructed in several laboratories, including ours. These mice show several disease-characteristic features and suggest that continued studies on the Grn−/− mice would be instructive in the understanding of complex GRN biology in health and disease.
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Boddaert, J., Wils, H., Kumar-Singh, S. (2018). Methods to Investigate the Molecular Basis of Progranulin Actions on Brain and Behavior In Vivo Using Knockout Mice. In: Bateman, A., Bennett, H., Cheung, S. (eds) Progranulin. Methods in Molecular Biology, vol 1806. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-8559-3_16
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DOI: https://doi.org/10.1007/978-1-4939-8559-3_16
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