Cellular rejuvenation protects neurons from inflammation-mediated cell death.

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Tác giả: Sienna S Drake, Alyson E Fournier, Christine Gianfelice, David Gosselin, Adam M R Groh, Kali Heale, Matthew A Hintermayer, Elizabeth M-L Hua, Yuancheng Ryan Lu, Abdulshakour Mohammadnia, Alexandre Prat, David A Sinclair, Jo Anne Stratton, Aliyah Zaman, Stephanie Zandee

Ngôn ngữ: eng

Ký hiệu phân loại: 155.412 Sensory perception, movement, emotions, physiological drives

Thông tin xuất bản: United States : Cell reports , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 179275

In multiple sclerosis (MS), inflammation of the central nervous system results in demyelination, neuroaxonal injury, and cell death. However, the molecular signals responsible for injury and cell death in neurons are not fully characterized. Here, we profile the transcriptome of retinal ganglion cells (RGCs) in experimental autoimmune encephalomyelitis (EAE) mice. Pathway analysis identifies a transcriptional signature reminiscent of aged RGCs with some senescent features, with a comparable signature present in neurons from patients with MS. This is supported by immunostaining demonstrating alterations to the nuclear envelope, modifications in chromatin marks, and accumulation of DNA damage. Transduction of RGCs with an Oct4-Sox2-Klf4 adeno-associated virus (AAV) to rejuvenate the transcriptome enhances RGC survival in EAE and improves visual acuity. Collectively, these data reveal an aging-like phenotype in neurons under pathological neuroinflammation and support the possibility that rejuvenation therapies or senotherapeutic agents could offer a direct avenue for neuroprotection in neuroimmune disorders.
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