Interaction between the -T catenin gene (VR22) and APOE in Alzheimer's disease

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Abstract
Background: APOE is the only gene that has been consistently replicated as a risk factor for late onset Alzheimer’s disease. Several recent studies have identified linkage to chromosome 10 for both risk and age of onset, suggesting that this region harbours genes that influence the development of the disease. A recent study reported association between single nucleotide polymorphisms (SNPs) in the VR22 gene (CTNNA3) on chromosome 10 and plasma levels of Aβ42, an endophenotype related to Alzheimer’s disease. Objective: To assess whether polymorphisms in the VR22 gene are associated with Alzheimer’s disease in a large sample of Alzheimer’s disease families and an independent set of unrelated cases and controls. Results: Several SNPs showed association in either the family based or case–control analyses (pConclusions: This study suggests that VR22 or a nearby gene influences susceptibility to Alzheimer’s disease, and the effect is dependent on APOE status.