Identifying the Molecular Systems That Influence Cognitive Resilience to Alzheimer's Disease in Genetically Diverse Mice

Autor/inn/en	Heuer, Sarah E.; Neuner, Sarah M.; Hadad, Niran; O'Connell, Kristen M. S.; Williams, Robert W.; Philip, Vivek M.; Gaiteri, Chris; Kaczorowski, Catherine C.
Titel	Identifying the Molecular Systems That Influence Cognitive Resilience to Alzheimer's Disease in Genetically Diverse Mice
Quelle	In: Learning & Memory, 27 (2020) 9, S.355-371 (17 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Heuer, Sarah E.) ORCID (Neuner, Sarah M.) ORCID (Hadad, Niran) ORCID (O'Connell, Kristen M. S.) ORCID (Williams, Robert W.) ORCID (Philip, Vivek M.) ORCID (Gaiteri, Chris) ORCID (Kaczorowski, Catherine C.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1072-0502
DOI	10.1101/lm.051839.120
Schlagwörter	Cognitive Processes; Resilience (Psychology); Alzheimers Disease; Genetics; Animals; Individual Differences; Short Term Memory; Brain; Molecular Structure + Suchen Sie Ihr Suchwort? Cognitive process; Kognitiver Prozess; Humangenetik; Animal; Tier; Tiere; Individueller Unterschied; Kurzzeitgedächtnis; Gehirn
Abstract	Individual differences in cognitive decline during normal aging and Alzheimer's disease (AD) are common, but the molecular mechanisms underlying these distinct outcomes are not fully understood. We utilized a combination of genetic, molecular, and behavioral data from a mouse population designed to model human variation in cognitive outcomes to search for the molecular mechanisms behind this population-wide variation. Specifically, we used a systems genetics approach to relate gene expression to cognitive outcomes during AD and normal aging. Statistical causal-inference Bayesian modeling was used to model systematic genetic perturbations matched with cognitive data that identified astrocyte and microglia molecular networks as drivers of cognitive resilience to AD. Using genetic mapping, we identified "Fgf2" as a potential regulator of the astrocyte network associated with individual differences in short-term memory. We also identified several immune genes as regulators of a microglia network associated with individual differences in long-term memory, which was partly mediated by amyloid burden. Finally, significant overlap between mouse and two different human coexpression networks provided strong evidence of translational relevance for the genetically diverse AD-BXD panel as a model of late-onset AD. Together, this work identified two candidate molecular pathways enriched for microglia and astrocyte genes that serve as causal AD cognitive biomarkers, and provided a greater understanding of processes that modulate individual and population-wide differences in cognitive outcomes during AD. (As Provided).
Anmerkungen	Cold Spring Harbor Laboratory Press. 500 Sunnyside Boulevard, Woodbury, NY 11797-2924. Tel: 800-843-4388; Tel: 516-367-8800; Fax: 516-422-4097; e-mail: cshpres@cshl.edu; Web site: http://learnmem.cshlp.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01