PM20D1 is a quantitative trait locus associated with Alzheimer’s disease

Jose V. Sanchez-Mut, Holger Heyn, Bianca A. Silva, Lucie Dixsaut, Paula Garcia-Esparcia, Enrique Vidal, Sergi Sayols, Liliane Glauser, Ana Monteagudo-Sánchez, Jordi Perez-Tur, Isidre Ferrer, David Monk, Bernard Schneider, Manel Esteller, Johannes Gräff

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64 Citations (Scopus)


The chances to develop Alzheimer’s disease (AD) result from a combination of genetic and non-genetic risk factors1, the latter likely being mediated by epigenetic mechanisms2. In the past, genome-wide association studies (GWAS) have identified an important number of risk loci associated with AD pathology3, but a causal relationship remains difficult to establish. In contrast, locus-specific or epigenome-wide association studies (EWAS) have revealed site-specific epigenetic alterations, which provide mechanistic insights for a particular risk gene but often lack the statistical power of GWAS4. Here, combining both approaches, we report a previously unidentified association of the peptidase M20-domain-containing protein 1 (PM20D1) with AD. We find that PM20D1 is a methylation and expression quantitative trait locus coupled to an AD-risk associated haplotype, which displays enhancer-like characteristics and contacts the PM20D1 promoter via a haplotype-dependent, CCCTC-binding-factor-mediated chromatin loop. Furthermore, PM20D1 is increased following AD-related neurotoxic insults at symptomatic stages in the APP/PS1 mouse model of AD and in human patients with AD who are carriers of the non-risk haplotype. In line, genetically increasing or decreasing the expression of PM20D1 reduces and aggravates AD-related pathologies, respectively. These findings suggest that in a particular genetic background, PM20D1 contributes to neuroprotection against AD.
Original languageEnglish
Pages (from-to)598-603
Number of pages6
JournalNature Medicine
Issue number5
Publication statusPublished - 7 May 2018

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