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- Title
Exposure of Mesenchymal Stem Cells to an Alzheimer's Disease Environment Enhances Therapeutic Effects.
- Authors
Park, Sang Eon; Kim, Hyeong Seop; Kwon, Soo Jin; Kim, Min-Jeong; Choi, Suk-joo; Oh, Soo-young; Ryu, Gyu Ha; Jeon, Hong Bae; Na, Duk L.; Chang, Jong Wook
- Abstract
Mesenchymal stem cells (MSCs) have emerged as a promising tool for the treatment of Alzheimer's disease (AD). Previous studies suggested that the coculture of human MSCs with AD in an in vitro model reduced the expression of amyloid-beta 42 (Aβ42) in the medium as well as the overexpression of amyloid-beta- (Aβ-) degrading enzymes such as neprilysin (NEP). We focused on the role of primed MSCs (human Wharton's jelly-derived mesenchymal stem cells (WJ-MSCs) exposed to an AD cell line via a coculture system) in reducing the levels of Aβ and inhibiting cell death. We demonstrated that mouse groups treated with naïve MSCs and primed MSCs showed significant reductions in cell death, ubiquitin conjugate levels, and Aβ levels, but the effects were greater in primed MSCs. Also, mRNA sequencing data analysis indicated that high levels of TGF-β induced primed-MSCs. Furthermore, treatment with TGF-β reduced Aβ expression in an AD transgenic mouse model. These results highlighted AD environmental preconditioning is a promising strategy to reduce cell death and ubiquitin conjugate levels and maintain the stemness of MSCs. Further, these data suggest that human WJ-MSCs exposed to an AD environment may represent a promising and novel therapy for AD.
- Subjects
ALZHEIMER'S disease; TREATMENT effectiveness; CELL death; AMYLOID plaque; MESENCHYMAL stem cells; NEPRILYSIN; TRANSGENIC mice
- Publication
Stem Cells International, 2021, p1
- ISSN
1687-966X
- Publication type
Article
- DOI
10.1155/2021/6660186