RESEARCH MODELS Summary The App SAA mouse joins a list of knock-in models that carry a humanized Aβ sequence within the murine App gene (App knock-in (humanized Aβ), APP NL-F Knock-in, APP NL-G-F Knock-in). As in the latter two models, the App gene was further modified ...
RESEARCH MODELS Summary Rab5 is a small GTPase that regulates endosome trafficking, sorting, and fusion. Enlarged Rab5-positive endosomes are among the earliest neuropathological signs of Alzheimer’s disease and Down’s syndrome (Cataldo et al., 2000), and a body of ...
RESEARCH MODELS Summary In addition to their roles in canonical autophagy, some protein components of the autophagy machinery are involved in recycling cell-surface receptors in microglia (see Jun 2019 News). Atg16L ΔWD mice express a prematurely truncated version of the ...
RESEARCH MODELS Summary The PLCG2 gene encodes the enzyme phospholipase C gamma 2 (PLCγ2), a mediator of transmembrane signaling in microglia that acts downstream of TREM2. A rare variant in this gene, P522R, has been associated with reduced risks of Alzheimer’s disease ...
RESEARCH MODELS Summary App hu/hu mice carry a humanized Aβ sequence within the murine App gene. In this knock-in model, created using CRISPR/Cas9 technology, expression of App is driven by its natural promoter and is expected to show normal cell-type and temporal ...
RESEARCH MODELS Summary App hu/hu rats carry a humanized Aβ sequence within the rat App gene. In this knock-in model, created using CRISPR/Cas9 technology, expression of App is driven by its natural promoter and is expected to show normal cell-type and temporal ...
RESEARCH MODELS Summary App hu/hu;Psen1M139T +/+ rats carry a humanized Aβ sequence within the rat App gene and the AD-linked M139T mutation in the rat Psen1 gene. These knock-in animals are homozygous for both humanized App and Psen1 M139T. Levels of APP and its ...
RESEARCH MODELS Summary People who carry one copy of the R47H variant of TREM2 have an approximately threefold greater risk of developing Alzheimer’s disease than do people homozygous for the common variant. Earlier mouse models were generated to explore the effects of ...
RESEARCH MODELS Summary These mice, referred to here as PS19-TREM2 CV, carry transgenes encoding the common variant of human TREM2 and human MAPT with the P301S mutation linked to frontotemporal dementia, on a mouse-Trem2-null background. This model was generated by ...
RESEARCH MODELS Summary People who carry one copy of the R47H variant of TREM2 have an approximately threefold greater risk of developing Alzheimer’s disease than do people homozygous for the common variant. This mouse model, referred to here as TREM2 R47H, expresses the ...
RESEARCH MODELS Summary This mouse model, referred to here as TREM2 CV, expresses the common variant of human TREM2 in the absence of mouse Trem2. Transgenic TREM2 is expressed in microglia and macrophages, where it was shown to function properly in an ex vivo assay. ...
RESEARCH MODELS Summary The L435F mutation in PSEN1 was found in affected individuals in a family with early onset AD (Heilig et al., 2010). This knock-in rat model carries the homologous mutation in the rat Psen1 gene and a humanized Aβ sequence within the rat App gene ...
RESEARCH MODELS Summary R47H is a rare variant in TREM2 that triples the risk of Alzheimer’s disease in heterozygous carriers. This knock-in rat model carries the R47H mutation in the rat Trem2 gene and a humanized Aβ sequence within the rat App gene (Tambini and D ...
RESEARCH MODELS Summary The A673T (“Icelandic”) mutation in APP is associated with protection against Alzheimer's disease and age-related cognitive decline. This knock-in rat model carries the Icelandic mutation and a humanized Aβ sequence within the endogenous rat ...
RESEARCH MODELS Summary The KM670/671NL (“Swedish”) double mutation in APP was linked to AD in two large Swedish pedigrees. The mutation is located immediately adjacent to the β-secretase site and results in increased β-secretase processing of APP (Cai et al., 1993; Rabe ...