期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep26013
关键词
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资金
- Wellcome Trust [074454/Z/04/Z]
- Straker Charitable Trust
- Newcastle Brain Tissue Resource
- UK Medical Research Council [G0400074]
- NIHR Newcastle Biomedical Research Centre and Unit
- Alzheimer's Society
- Alzheimer's Research Trust as part of the Brains for Dementia Research Project
- Medical Research Council [G0502157, G0400074, G0900652, G1100540, MR/L016354/1] Funding Source: researchfish
- National Institute for Health Research [NF-SI-0514-10077] Funding Source: researchfish
- MRC [G1100540, G0400074, G0900652, MR/L016354/1, G0502157] Funding Source: UKRI
CLARITY enables immunofluorescent labelling and imaging of large volumes of tissue to provide a better insight into the three dimensional relationship between cellular morphology and spatial interactions between different cell types. In the current study, we optimise passive CLARITY and immunofluorescent labelling of neurons and mitochondrial proteins in mouse and human brain tissues to gain further insights into mechanisms of neurodegeneration occurring in mitochondrial disease. This is the first study to utilise human cerebellum fixed in paraformaldehyde and cryoprotected in conjunction with formalin-fixed tissues opening up further avenues for use of archived tissue. We optimised hydrogel-embedding and passive clearance of lipids from both mouse (n = 5) and human (n = 9) cerebellum as well as developing an immunofluorescent protocol that consistently labels different neuronal domains as well as blood vessels. In addition to visualising large structures, we were able to visualise mitochondrial proteins in passively cleared tissues to reveal respiratory chain deficiency associated with mitochondrial disease. We also demonstrate multiple use of tissues by stripping antibodies and re-probing the cerebellum. This technique allows interrogation of large volumes intact brain samples for better understanding of the complex pathological changes taking place in mitochondrial disease.
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