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Picard C, Miron J, Poirier J. Association of TMEM106B with Cortical APOE Gene Expression in Neurodegenerative Conditions. Genes (Basel) 2024; 15:416. [PMID: 38674351 PMCID: PMC11049136 DOI: 10.3390/genes15040416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/21/2024] [Accepted: 03/23/2024] [Indexed: 04/28/2024] Open
Abstract
The e4 allele of the apolipoprotein E gene is the strongest genetic risk factor for sporadic Alzheimer's disease. Nevertheless, how APOE is regulated is still elusive. In a trans-eQTL analysis, we found a genome-wide significant association between transmembrane protein 106B (TMEM106B) genetic variants and cortical APOE mRNA levels in human brains. The goal of this study is to determine whether TMEM106B is mis-regulated in Alzheimer's disease or in other neurodegenerative conditions. Available genomic, transcriptomic and proteomic data from human brains were downloaded from the Mayo Clinic Brain Bank and the Religious Orders Study and Memory and Aging Project. An in-house mouse model of the hippocampal deafferentation/reinnervation was achieved via a stereotaxic lesioning surgery to the entorhinal cortex, and mRNA levels were measured using RNAseq technology. In human temporal cortices, the mean TMEM106B expression was significantly higher in Alzheimer's disease compared to cognitively unimpaired individuals. In the mouse model, hippocampal Tmem106b reached maximum levels during the early phase of reinnervation. These results suggest an active response to tissue damage that is consistent with compensatory synaptic and terminal remodeling.
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Affiliation(s)
- Cynthia Picard
- Douglas Mental Health University Institute, Montreal, QC H4H 1R3, Canada; (C.P.); (J.M.)
- Centre for the Studies on Prevention of Alzheimer’s Disease, Montreal, QC H4H 1R3, Canada
| | - Justin Miron
- Douglas Mental Health University Institute, Montreal, QC H4H 1R3, Canada; (C.P.); (J.M.)
- Centre for the Studies on Prevention of Alzheimer’s Disease, Montreal, QC H4H 1R3, Canada
- Department of Psychiatry, Faculty of Medicine, McGill University, Montreal, QC H3A 0E7, Canada
| | - Judes Poirier
- Douglas Mental Health University Institute, Montreal, QC H4H 1R3, Canada; (C.P.); (J.M.)
- Centre for the Studies on Prevention of Alzheimer’s Disease, Montreal, QC H4H 1R3, Canada
- Department of Psychiatry, Faculty of Medicine, McGill University, Montreal, QC H3A 0E7, Canada
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Llibre‐Guerra JJ, Lee SE, Suemoto CK, Ehrenberg AJ, Kovacs GG, Karydas A, Staffaroni A, Franca Resende EDP, Kim E, Hwang J, Ramos EM, Wojta KJ, Pasquini L, Pang SY, Spina S, Allen IE, Kramer J, Miller BL, Seeley WW, Grinberg LT. A novel temporal-predominant neuro-astroglial tauopathy associated with TMEM106B gene polymorphism in FTLD/ALS-TDP. Brain Pathol 2021; 31:267-282. [PMID: 33314436 PMCID: PMC7946775 DOI: 10.1111/bpa.12924] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/30/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022] Open
Abstract
Polymorphisms in TMEM106B, a gene on chromosome 7p21.3 involved in lysosomal trafficking, correlates to worse neuropathological, and clinical outcomes in frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS) with TDP-43 inclusions. In a small cohort of C9orf72 expansion carriers, we previously found an atypical, neuroglial tauopathy in cases harboring a TMEM106B rs1990622 A/A genotype. To test whether TMEM106B genotype affects the risk of developing atypical tauopathy under a recessive genotype model (presence versus absence of two major alleles: A/A vs. A/G and G/G). We characterized the atypical tauopathy neuropathologically and determined its frequency by TMEM106B rs1990622 genotypes in 90 postmortem cases with a primary diagnosis of FTLD/ALS-TDP [mean age at death 65.5 years (±8.1), 40% female]. We investigated the effect of this new atypical tauopathy on demographics and clinical and neuropsychological metrics. We also genotyped TMEM106B in an independent series with phenotypically similar cases. Sixteen cases (16/90, 17.7 %) showed the temporal-predominant neuro-astroglial tauopathy, and 93.7% of them carried an A/A genotype (vs. ~35% in a population cohort). The odds ratio of FTLD/ALS-TDP individuals with the A/A genotype showing neuro-astroglial tauopathy was 13.9. Individuals with this tauopathy were older at onset (p = 0.01). The validation cohort had a similarly high proportion of rs1990622 A/A genotype. TDP-43 and tau changes co-occur in a subset of neurons. Our data add to the growing body of evidence that TMEM106B polymorphisms may modulate neurodegeneration. A distinctive medial temporal predominant, 4-repeat, neuro-astroglial tauopathy strongly correlates to TMEM106B A/A genotype in FTLD/ALS-TDP cases.
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Affiliation(s)
- Jorge J. Llibre‐Guerra
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA,National Institute of Neurology and NeurosurgeryLa HabanaCuba,Global Brain Health InstituteUniversity of California, San FranciscoSan FranciscoCAUSA
| | - Suzee E. Lee
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA
| | - Claudia K. Suemoto
- Biobank for Aging StudiesLIM‐22Department of PathologyUniversity of Sao Paulo Medical SchoolSao PauloBrazil,Division of GeriatricsDepartment of Clinical MedicineUniversity of Sao Paulo Medical SchoolSao PauloBrazil
| | - Alexander J. Ehrenberg
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA,Department of Integrative BiologyUniversity of California, BerkeleyBerkeleyCAUSA
| | - Gabor G. Kovacs
- Institute of NeurologyMedical University ViennaViennaAustria,Department of Laboratory Medicine and Pathobiology and Tanz Centre for Research in Neurodegenerative DiseaseUniversity of TorontoTorontoONCanada,Laboratory Medicine Program & Krembil Brain InstituteUniversity Health NetworkTorontoONCanada
| | - Anna Karydas
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA
| | - Adam Staffaroni
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA
| | - Elisa De Paula Franca Resende
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA,Global Brain Health InstituteUniversity of California, San FranciscoSan FranciscoCAUSA,Grupo de Pesquisa em Neurologia Cognitiva e do ComportamentoDepartamento de Clínica MédicaFaculdade de Medicina da Universidade Federal de Minas GeraisBelo HorizonteBrazil
| | - Eun‐Joo Kim
- Department of NeurologyPusan National University HospitalPusan National University School of Medicine and Medical Research InstituteBusanRepublic of Korea
| | - Ji‐Hye Hwang
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA
| | - Eliana Marisa Ramos
- Department of PsychiatryDavid Geffen School of MedicineUniversity of California Los AngelesLos AngelesCAUSA
| | - Kevin J. Wojta
- Department of PsychiatryDavid Geffen School of MedicineUniversity of California Los AngelesLos AngelesCAUSA
| | - Lorenzo Pasquini
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA
| | - Shirley Yin‐Yu Pang
- Division of NeurologyDepartment of MedicineQueen Mary HospitalThe University of Hong KongHong Kong SARChina
| | - Salvatore Spina
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA
| | - Isabel E. Allen
- Global Brain Health InstituteUniversity of California, San FranciscoSan FranciscoCAUSA,Department of Epidemiology & BiostatisticsUniversity of California, San FranciscoSan FranciscoCAUSA
| | - Joel Kramer
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA
| | - Bruce L. Miller
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA
| | - William W. Seeley
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA,Department of Pathology and Laboratory MedicineUniversity of California, San FranciscoSan FranciscoCAUSA
| | - Lea T. Grinberg
- Department of NeurologyUCSF Weill Institute for NeurosciencesUniversity of California, San Francisco, San FranciscoCAUSA,Global Brain Health InstituteUniversity of California, San FranciscoSan FranciscoCAUSA,Biobank for Aging StudiesLIM‐22Department of PathologyUniversity of Sao Paulo Medical SchoolSao PauloBrazil,Department of Pathology and Laboratory MedicineUniversity of California, San FranciscoSan FranciscoCAUSA
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