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1.	Ni, Ruiqing, et al. (författare) Multiscale optical and optoacoustic imaging of amyloid-beta deposits in mice 2022 Ingår i: Nature Biomedical Engineering. - : NATURE PORTFOLIO. - 2157-846X. ; 6, s. 1031-1044 Tidskriftsartikel (refereegranskat)abstract Large-field multifocal illumination fluorescence microscopy and panoramic volumetric multispectral optoacoustic tomography can be combined to longitudinally assess amyloid-beta deposits in transgenic mouse models of Alzheimers disease. Deposits of amyloid-beta (A beta) in the brains of rodents can be analysed by invasive intravital microscopy on a submillimetre scale, or via whole-brain images from modalities lacking the resolution or molecular specificity to accurately characterize A beta pathologies. Here we show that large-field multifocal illumination fluorescence microscopy and panoramic volumetric multispectral optoacoustic tomography can be combined to longitudinally assess A beta deposits in transgenic mouse models of Alzheimers disease. We used fluorescent A beta-targeted probes (the luminescent conjugated oligothiophene HS-169 and the oxazine-derivative AOI987) to transcranially detect A beta deposits in the cortex of APP/PS1 and arcA beta mice with single-plaque resolution (8 mu m) and across the whole brain (including the hippocampus and the thalamus, which are inaccessible by conventional intravital microscopy) at sub-150 mu m resolutions. Two-photon microscopy, light-sheet microscopy and immunohistochemistry of brain-tissue sections confirmed the specificity and regional distributions of the deposits. High-resolution multiscale optical and optoacoustic imaging of A beta deposits across the entire brain in rodents thus facilitates the in vivo study of A beta accumulation by brain region and by animal age and strain.

Ni, Ruiqing, et al. (författare)
Multiscale optical and optoacoustic imaging of amyloid-beta deposits in mice
2022
Ingår i: Nature Biomedical Engineering. - : NATURE PORTFOLIO. - 2157-846X. ; 6, s. 1031-1044
Tidskriftsartikel (refereegranskat)abstract
- Large-field multifocal illumination fluorescence microscopy and panoramic volumetric multispectral optoacoustic tomography can be combined to longitudinally assess amyloid-beta deposits in transgenic mouse models of Alzheimers disease. Deposits of amyloid-beta (A beta) in the brains of rodents can be analysed by invasive intravital microscopy on a submillimetre scale, or via whole-brain images from modalities lacking the resolution or molecular specificity to accurately characterize A beta pathologies. Here we show that large-field multifocal illumination fluorescence microscopy and panoramic volumetric multispectral optoacoustic tomography can be combined to longitudinally assess A beta deposits in transgenic mouse models of Alzheimers disease. We used fluorescent A beta-targeted probes (the luminescent conjugated oligothiophene HS-169 and the oxazine-derivative AOI987) to transcranially detect A beta deposits in the cortex of APP/PS1 and arcA beta mice with single-plaque resolution (8 mu m) and across the whole brain (including the hippocampus and the thalamus, which are inaccessible by conventional intravital microscopy) at sub-150 mu m resolutions. Two-photon microscopy, light-sheet microscopy and immunohistochemistry of brain-tissue sections confirmed the specificity and regional distributions of the deposits. High-resolution multiscale optical and optoacoustic imaging of A beta deposits across the entire brain in rodents thus facilitates the in vivo study of A beta accumulation by brain region and by animal age and strain.

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