ArticleMolecular neurodegeneration2025
Increased TMEM106B levels lead to lysosomal dysfunction which affects synaptic signaling and neuronal health.
Article in Molecular neurodegeneration, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Mendelianization: Concentrating Polygenic Signal Into a Single Causal Locus.Genetic epidemiology · 2026Article
- Article
- TMEM106B C-terminal fragments drive nucleocytoplasmic transport failure and TDP-43 mislocalization in the aging human brain.bioRxiv : the preprint server for biology · 2026Article
- Neurodegeneration risk variants promote lysosomal TMEM106B fibril accumulation.bioRxiv : the preprint server for biology · 2026Article
- Granulin loss and TMEM106B risk converge on lysosomal C-terminal fragment pathology in frontotemporal dementia.bioRxiv : the preprint server for biology · 2026Article
- The amyloidogenic C-terminal region of TMEM106B modulates lipid membrane biophysical properties: Functional and pathological insights.The Journal of biological chemistry · 2026Article
- Molecular mechanisms of autophagy-lysosomal pathway dysfunction in neurodegenerative diseases and therapeutic strategies for lysosomal repair: a review.Frontiers in neuroscience · 2026Review
- The role of endolysosomal progranulin and TMEM106B in neurodegenerative diseases.Molecular neurodegeneration · 2025Review
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19 authors.
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Abstract
backgroundGenetic variation in Transmembrane protein 106B (TMEM106B) is known to influence the risk and presentation in several neurodegenerative diseases and modifies healthy aging. While evidence from human studies suggests that the risk allele is associated with higher levels of TMEM106B, the contribution of elevated levels of TMEM106B to neurodegeneration and aging has not been assessed and it remains unclear how TMEM106B modulates disease risk.
methodsTo study the effect of increased TMEM106B levels, we generated Cre-inducible transgenic mice expressing human wild-type TMEM106B. We evaluated lysosomal and neuronal health using in vitro and in vivo assays including transmission electron microscopy, immunostainings, behavioral testing, electrophysiology, and bulk RNA sequencing.
resultsWe created the first transgenic mouse model that successfully overexpresses TMEM106B, with a 4- to 8-fold increase in TMEM106B protein levels in heterozygous (hTMEM106B(+)) and homozygous (hTMEM106B(++)) animals, respectively. We showed that the increase in TMEM106B protein levels induced lysosomal dysfunction and age-related downregulation of genes associated with neuronal plasticity, learning, and memory. Increased TMEM106B levels led to altered synaptic signaling in 12-month-old animals which further exhibited an anxiety-like phenotype. Finally, we observed mild neuronal loss in the hippocampus of 21-month-old animals.
conclusionCharacterization of the first transgenic mouse model that overexpresses TMEM106B suggests that higher levels of TMEM106B negatively impacts brain health by modifying brain aging and impairing the resilience of the brain to the pathomechanisms of neurodegenerative disorders. This novel model will be a valuable tool to study the involvement and contribution of increased TMEM106B levels to aging and will be essential to study the many age-related diseases in which TMEM106B was genetically shown to be a disease- and risk-modifier.
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