Intestinal Epithelial Stem Cell Transplants As a Novel Therapy for Cerebrovascular Stroke
Overview
Neurology
Psychiatry
Authors
Affiliations
Almost 2/3 of stroke survivors exhibit vascular cognitive impairment and a third of stroke patients will develop dementia 1-3 years after stroke. These dire consequences underscore the need for effective stroke therapies. In addition to its damaging effects on the brain, stroke rapidly dysregulates the intestinal epithelium, resulting in elevated blood levels of inflammatory cytokines and toxic gut metabolites due to a 'leaky' gut. We tested whether repairing the gut via intestinal epithelial stem cell (IESC) transplants would also improve stroke recovery. Organoids containing IESCs derived from young rats transplanted into older rats after stroke were incorporated into the gut, restored stroke-induced gut dysmorphology and decreased gut permeability, and reduced circulating levels of endotoxin LPS and the inflammatory cytokine IL-17A. Remarkably, IESC transplants also improved stroke-induced acute (4d) sensory-motor disability and chronic (30d) cognitive-affective function. Moreover, IESCs from older animals displayed senescent features and were not therapeutic for stroke. These data underscore the gut as a critical therapeutic target for stroke and demonstrate the effectiveness of gut stem cell therapy.
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Granados-Martinez C, Alfageme-Lopez N, Navarro-Oviedo M, Nieto-Vaquero C, Cuartero M, Diaz-Benito B Biomedicines. 2025; 12(12.
PMID: 39767686 PMC: 11673227. DOI: 10.3390/biomedicines12122781.
Current applications of intestinal organoids: a review.
Xiang T, Wang J, Li H Stem Cell Res Ther. 2024; 15(1):155.
PMID: 38816841 PMC: 11140936. DOI: 10.1186/s13287-024-03768-3.
Bibliometric analysis of the gut microbiota and stroke from 2002 to 2022.
Wang C, Zhu H, Li Y, Zhang Y, Ye Y, Zhong Y Heliyon. 2024; 10(9):e30424.
PMID: 38765104 PMC: 11101820. DOI: 10.1016/j.heliyon.2024.e30424.
Wang Y, Xie D, Ma S, Shao N, Zhang X, Wang X Front Immunol. 2024; 15:1347415.
PMID: 38736878 PMC: 11084673. DOI: 10.3389/fimmu.2024.1347415.
Xue L, Du R, Bi N, Xiao Q, Sun Y, Niu R Neural Regen Res. 2024; 19(9):2027-2035.
PMID: 38227532 PMC: 11040304. DOI: 10.4103/1673-5374.390952.