ArticleResearch square2024
RNA Profiling of Brain Microvessels Reveals Altered Morphology and Signaling in a Mouse Model of Alzheimer's Disease.
Article in Research square, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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7 authors at 1 institution in 1 country.
Funding
Abstract
Disruptions in pericyte and endothelial cell expression can compromise the integrity of the blood-brain barrier (BBB), leading to neurovascular dysfunction and the development of neurological disorders. However, the study of microvessel RNAs has been limited to tissue homogenates, with spatial visualization only available for protein targets. We introduce an innovative microvessel isolation technique that is RNA-friendly for the purpose of coupling with RNAscope analysis. RNA-friendly microvessel isolation combined with RNAscope analysis enables the visualization of cell-specific RNA within the spatial and histological context of the BBB. Using this approach, we have gained valuable insights into the structural and functional differences associated with the microvessels of 5XFAD mice, a mouse model of Alzheimer's disease (AD). RNAscope analysis revealed a decrease in pericytes from microvessels isolated from 5XFAD mice in comparison to wild-type mice. Additionally, the microvessels of 5XFAD mice exhibited an increase in TYROBP mRNA expression. These findings significantly advance our understanding of neurovascular interactions and hold great promise for guiding the development of targeted therapeutic interventions. This innovative approach enables visualization of cell RNA while preserving the spatial and histological context of the BBB, shedding light on the mechanisms underlying neurovascular unit communication.
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