Sox-positive cell population in the adult cerebellum increases upon tissue degeneration

Salih, Shelanah; Nizamudeen, Zubair Ahmed; De Melo, Nigel; Chakrabarti, Lisa; Sottile, Virginie

Abstract

Adult neurogenesis is well-described in the subventricular and subgranular zones of the mammalian brain. Recent observations that resident glia express stem cell markers in some areas of the brain not traditionally associated with neurogenesis hint to a possible role in tissue repair. The Bergmann glia (BG) population in the cerebellum displays markers and in vitro features associated with neural stem cells (NSC), however the physiological relevance of this phenotypic overlap remains unclear in the absence of established in vivo evidence of tissue regeneration in the adult cerebellum. Here, this BG population was analysed in the adult cerebellum of different species and showed conservation of NSC-associated marker expression including Sox1, Sox2 and Sox9, in chick, primate and mouse cerebellum tissue. NSC-like cells isolated from adult mouse cerebellum showed slower growth when compared to lateral ventricle NSC, as well as differences upon differentiation. In a mouse model of cerebellar degeneration, progressive Purkinje cell loss was linked to cerebellar cortex disorganisation and a significant increase in Sox-positive cells compared to matching controls. These results show that this Sox-positive population responds to cerebellar tissue disruption, suggesting it may represent a mobilisable cellular resource for targeted strategies to promote tissue repair.

Citation

Salih, S., Nizamudeen, Z. A., De Melo, N., Chakrabarti, L., & Sottile, V. (2022). Sox-positive cell population in the adult cerebellum increases upon tissue degeneration. Experimental Neurology, 348, Article 113950. https://doi.org/10.1016/j.expneurol.2021.113950

• Journal Article Type: Article
• Acceptance Date: Dec 7, 2021
• Online Publication Date: Dec 10, 2021
• Publication Date: Feb 1, 2022
• Deposit Date: Dec 23, 2021
• Publicly Available Date: Dec 11, 2022
• Journal: Experimental Neurology
• Print ISSN: 0014-4886
• Electronic ISSN: 1090-2430
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 348
• Article Number: 113950
• DOI: https://doi.org/10.1016/j.expneurol.2021.113950
• Keywords: Developmental Neuroscience; Neurology
• Public URL: https://nottingham-repository.worktribe.com/output/7057742
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0014488621003587