hAPP Mouse
Product Name
hAPP Mouse
Product ID
C002123
Strain Name
C57BL/6Cya-Appem3(hAPP)/Cya
Background
C57BL/6Cya
Status
Citations
0
When using this mouse strain in a publication, please cite “hAPP Mouse (Catalog C002123) were purchased from Cyagen.”
Product Type
Age
Genotype
Sex
Quantity
Standard products are sold as live mice derived from cryorecovery or expansion. Frozen materials are available upon request. Pricing and lead times depend on real-time inventory.
Gene Name
APP
Gene Alias
AAA, AD1, PN2, ABPP, APPI, CVAP, ABETA, PN-II, preA4, CTFgamma, alpha-sAPP
NCBI ID
Chromosome
Chr 21 (Human)
MGI ID
Datasheet
Strain Description
The APP gene encodes the Amyloid Precursor Protein, a type I transmembrane glycoprotein that is ubiquitously expressed but reaches its highest levels in the central nervous system, particularly in the cerebral cortex and hippocampus. Following translation, the APP protein is proteolytically processed via two primary pathways: the non-amyloidogenic pathway, which prevents Aβ formation, and the amyloidogenic pathway, where sequential cleavage by β-secretase (BACE1) and γ-secretase releases amyloid-beta (Aβ) peptides [1]. While its precise physiological role remains an area of active research, APP is known to function in synaptic formation and repair, anterograde neuronal transport, and cell-to-cell adhesion [2]. Pathological mutations or duplications of the APP gene are primary drivers of Alzheimer’s Disease (AD) and Cerebral Amyloid Angiopathy (CAA), characterized by the extracellular accumulation of Aβ plaques and vascular deposits that lead to neurodegeneration and cognitive decline [3].
The hAPP mouse is a humanized model generated using gene-editing technology. The region downstream of the mouse App signal peptide-coding sequence to a portion of intron 1 was replaced with the “Human APP CDS-3'UTR of Human APP-WPRE-BGH pA” cassette, while the mouse App signal peptide-coding sequence was retained. This model is suitable for studying neurodegenerative diseases such as Alzheimer's disease (AD), as well as for the research, development, and efficacy evaluation of AD therapeutic strategies targeting APP. Cyagen also offers huAPP-Aβ mice (Catalog No.: C002031), providing an alternative model for APP/Aβ-related research. The two models feature distinct humanization designs: the hAPP mouse incorporates a human APP CDS expression cassette, whereas the huAPP-Aβ mouse carries a genomic replacement in which the corresponding mouse App genomic region was replaced with its human APP genomic counterpart. The appropriate model can be selected based on the humanized region and construct design, according to the specific drug target and research objectives.
Reference
Cole SL, Vassar R. The Alzheimer's disease beta-secretase enzyme, BACE1. Mol Neurodegener. 2007 Nov 15;2:22.
Zheng H, Koo EH. The amyloid precursor protein: beyond amyloid. Mol Neurodegener. 2006 Jul 3;1:5.
Grangeon L, Charbonnier C, Zarea A, Rousseau S, Rovelet-Lecrux A, Bendetowicz D, Lemaitre M, Malrain C, Quillard-Muraine M, Cassinari K, Maltete D, Pariente J, Moreaud O, Magnin E, Cretin B, Mackowiak MA, Sillaire AR, Vercelletto M, Dionet E, Felician O, Rod-Olivieri P, Thomas-Antérion C, Godeneche G, Sauvée M, Cartz-Piver L, Le Ber I, Chauvire V, Jonveaux T, Balageas AC, Laquerriere A, Duyckaerts C, Vital A, de Paula AM, Meyronet D, Guyant-Marechal L, Hannequin D, Tournier-Lasserve E, Campion D; CNR-MAJ collaborators; Nicolas G, Wallon D. Phenotype and imaging features associated with APP duplications. Alzheimers Res Ther. 2023 May 11;15(1):93.
Strain Strategy
The region downstream of the mouse App signal peptide-coding sequence to a portion of intron 1 was replaced with the “Human APP CDS-3'UTR of Human APP-WPRE-BGH pA” cassette, while the mouse App signal peptide-coding sequence was retained.
Figure 1. Gene editing strategy for hAPP mice.
Application Area
Research on Alzheimer's disease (AD);
Research on Cerebral Amyloid Angiopathy (CAA);
Preclinical research such as the development, screening, and efficacy evaluation of APP-targeted therapeutic drugs.
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