Acupuncture accelerates neural regeneration and synaptophysin production after neural stem cells transplantation in mice  

作　　者：Lan Zhao Jian-Wei Liu Bo-Hong Kan Hui-Yan Shi Lin-Po Yang Xin-Yu Liu 

机构地区：[1]First Teaching Hospital of Tianjin University of Traditional Chinese Medicine,Tianjin 300381,China [2]Tianjin Key Laboratory of Acupuncture and Moxibustion,Tianjin 300381,China [3]National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion,Tianjin 300381,China [4]Tianjin University of Traditional Chinese Medicine,Tianjin 300193,China

出　　处：《World Journal of Stem Cells》2020年第12期1576-1590,共15页世界干细胞杂志（英文版）（电子版）

基　　金：Supported by National Natural Science Foundation of China,No.81202740;and Tianjin Natural Science Fund,No.17JCYBJC26200。

摘　　要：BACKGROUND Synaptophysin plays a key role in synaptic development and plasticity of neurons and is closely related to the cognitive process of Alzheimer’s disease(AD)patients.Exogenous neural stem cells(NSCs)improve the damaged nerve function.The effects of Sanjiao acupuncture on cognitive impairment may be related to the regulation of the NSC microenvironment.AIM To explore the anti-dementia mechanism of acupuncture by regulating the NSC microenvironment.METHODS NSCs were isolated from pregnant senescence-accelerated mouse resistant 1(SAMR1)mice,labeled with BrdU,and injected into the hippocampus of senescence-accelerated mouse prone 8(SAMP8)mice.Eight-month-old senescence-accelerated mice(SAM)were randomly divided into six groups:SAMR1(RC),SAMP8(PC),sham transplantation(PS),NSC transplantation(PT),NSC transplantation with acupuncture(PTA),and NSC transplantation with nonacupoint acupuncture(PTN).Morris water maze test was used to study the learning and memory ability of mice after NSC transplantation.Hematoxylin-eosin staining and immunofluorescence were used to observe the histopathological changes and NSC proliferation in mice.A co-culture model of hippocampal slices and NSCs was established in vitro,and the synaptophysin expression in the hippocampal microenvironment of mice was observed by flow cytometry after acupuncture treatment.RESULTS Morris water maze test showed significant cognitive impairment of learning and memory in 8-mo-old SAMP8,which improved in all the NSC transplantation groups.The behavioral change in the PTA group was stronger than those in the other two groups(P<0.05).Histopathologically,the hippocampal structure was clear,the cell arrangement was dense and orderly,and the necrosis of cells in CA1 and CA3 areas was significantly reduced in the PTA group when compared with the PC group.The BrdU-positive proliferating cells were found in NSC hippocampal transplantation groups,and the number increased significantly in the PTA group than in the PT and PTN groups(P<0.05).Flow cytometry showe

关 键 词：NEURODEGENERATION Alzheimer's disease Neural stem cells MICROENVIRONMENT SYNAPTOPHYSIN ACUPUNCTURE 

分 类 号：R245[医药卫生—针灸推拿学]