Abstract
Background: Mesenchymal stem cell transplantation is demonstrated to improve neurological performance in neurodegenerative diseases including Alzheimer’s disease.
Objective: The objective of this study is to understand the underlying mechanism of such improvement.
Methods: Amyloid β (Aβ) peptide was infused into the lateral ventricle of adult Wister rats using the osmotic pump. After 15 days of continuous infusion, a mesenchymal stem cell line (B10) was transplanted in the lateral ventricle. Learning-related behavior was evaluated by 2-way shuttle avoidance test. Fifteen days after B10 transplantation, pathological and expressional changes were evaluated.
Results: Compared to sham group, learning-related behavior was significantly decreased in Aβ-infused non-transplanted group, but not in B10-transplanted group. Nissl staining results demonstrated that the number of hippocampal pyramidal neurons in CA1 area in B10-transplanted group was similar to the sham group, whereas that was decreased in Aβ-infused non-transplanted group. Aβ mainly deposited in the vessels of the brains of Aβ-infused non-transplanted rats, which was decreased by B10 transplantation. Moreover, B10 transplantation increased vessel density as well as endoglin positive cells. The number of astrocyte and microglia was decreased in Aβ-infused non-transplanted group, which was returned to the level of sham animals by B10 transplantation. Real-time PCR and immunostaining results showed that B10 transplantation significantly increased IL-1β mRNA and protein expression.
Conclusion: Thus, our result showed that MSC transplantation effectively decreased Aβ deposition in the cerebral vessel and increased angiogenesis, which could be a possible cause of improved neurological performance in Aβ-infused AD model rats.
Keywords: Mesenchymal stem cell, Alzheimer's disease, neuroprotection, amyloid β protein, intraventricular infusion, angiogenesis.
Current Alzheimer Research
Title:A Mesenchymal Stem Cell Line Transplantation Improves Neurological Function and Angiogenesis in Intraventricular Amyloid β-Infused Rats
Volume: 15 Issue: 14
Author(s): Md. Ahsanul Haque, Abdullah Md. Sheikh*, Abdullah Al Mamun, Shozo Yano, Michio Hashimoto, Osamu Shido and Atsushi Nagai
Affiliation:
- Department of Laboratory Medicine, Shimane University School of Medicine, Ringgold Standard Institution, 89-1 Enya Cho, Izumo, Shimane 693-8501,Japan
Keywords: Mesenchymal stem cell, Alzheimer's disease, neuroprotection, amyloid β protein, intraventricular infusion, angiogenesis.
Abstract: Background: Mesenchymal stem cell transplantation is demonstrated to improve neurological performance in neurodegenerative diseases including Alzheimer’s disease.
Objective: The objective of this study is to understand the underlying mechanism of such improvement.
Methods: Amyloid β (Aβ) peptide was infused into the lateral ventricle of adult Wister rats using the osmotic pump. After 15 days of continuous infusion, a mesenchymal stem cell line (B10) was transplanted in the lateral ventricle. Learning-related behavior was evaluated by 2-way shuttle avoidance test. Fifteen days after B10 transplantation, pathological and expressional changes were evaluated.
Results: Compared to sham group, learning-related behavior was significantly decreased in Aβ-infused non-transplanted group, but not in B10-transplanted group. Nissl staining results demonstrated that the number of hippocampal pyramidal neurons in CA1 area in B10-transplanted group was similar to the sham group, whereas that was decreased in Aβ-infused non-transplanted group. Aβ mainly deposited in the vessels of the brains of Aβ-infused non-transplanted rats, which was decreased by B10 transplantation. Moreover, B10 transplantation increased vessel density as well as endoglin positive cells. The number of astrocyte and microglia was decreased in Aβ-infused non-transplanted group, which was returned to the level of sham animals by B10 transplantation. Real-time PCR and immunostaining results showed that B10 transplantation significantly increased IL-1β mRNA and protein expression.
Conclusion: Thus, our result showed that MSC transplantation effectively decreased Aβ deposition in the cerebral vessel and increased angiogenesis, which could be a possible cause of improved neurological performance in Aβ-infused AD model rats.
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Cite this article as:
Haque Ahsanul Md., Sheikh Md. Abdullah *, Al Mamun Abdullah , Yano Shozo , Hashimoto Michio , Shido Osamu and Nagai Atsushi , A Mesenchymal Stem Cell Line Transplantation Improves Neurological Function and Angiogenesis in Intraventricular Amyloid β-Infused Rats, Current Alzheimer Research 2018; 15 (14) . https://dx.doi.org/10.2174/1567205015666180911145159
DOI https://dx.doi.org/10.2174/1567205015666180911145159 |
Print ISSN 1567-2050 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5828 |
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