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Niemann-Pick type C (NPC) disease is a rare neurodegenerative disorder mainly caused by autosomal recessive mutations in Npc1 which result in abnormal late endosomal/lysosomal lipid storage. Although microgliosis is one of the prominent pathological features, consequences of NPC1 loss on microglial function and disease outcome remain largely unknown. Here, we provide an in-depth characterization of microglial proteomic signatures and phenotypes in an NPC1-deficient (Npc1-/-) murine model. We ...

Niemann-Pick type C (NPC) disease is a rare neurodegenerative disorder mainly caused by autosomal recessive mutations in Npc1 which result in abnormal late endosomal/lysosomal lipid storage. Although microgliosis is one of the prominent pathological features, consequences of NPC1 loss on microglial function and disease outcome remain largely unknown. Here, we provide an in-depth characterization of microglial proteomic signatures and phenotypes in an NPC1-deficient (Npc1-/-) murine model. We ...

Podocytes are essential cells of the renal blood filter. They structurally compose the renal blood filter by interdigitating with neighboring podocytes by the means of a modified adherens junction, the slit membrane. In podocyte injury, loss of podocytes is a common feature. Podocyte loss could be mediated by the cleavage of podocyte cell adhesion molecules through the A Disintegrin and Metalloproteinase 10 (ADAM10). Here we show that ADAM10 is highly abundant at the site of blood filtration, ...

Protoemics of endothelia, podocytes, mesangial cells from mouse

Proteolytic ectodomain shedding of membrane proteins is a fundamental mechanism to control the communication between cells and their environment. A key protease for membrane protein shedding is ADAM17, which requires a non-proteolytic subunit, either inactive Rhomboid 1 (iRhom1) or iRhom2 for its activity. While iRhom1 and iRhom2 are coexpressed in most tissues and appear to have largely redundant functions, the brain is an organ with predominant expression of iRhom1. Yet, little is known about ...

After demyelinating injury of the central nervous system, resolution of the mounting acute innate inflammation is crucial for the initiation of a regenerative response. To identify factors in lesion recovery after demyelination injury, we used a toxin-induced model, in which a single dose of lysolecithin is injected into the corpus callosum to induce a focal demyelinating lesion. Afterwards, we investigated the proteome of demyelinating lesions at different time points post injection (dpi) in a ...

Cerebral amyloid angiopathy (CAA) is an age-related condition and a major cause of intracerebral hemorrhage and cognitive decline that shows close links with Alzheimer's disease (AD). CAA is characterized by the aggregation of amyloid-β (Aβ) peptides and formation of Aβ deposits in the brain vasculature resulting in a disruption of the angioarchitecture. Capillaries are a critical site of Aβ pathology in CAA type 1 and become dysfunctional during disease progression. Here, applying an advanced ...