Effect of hUC-MSCs on the NLRP3/Caspase-1 Pathway in APP/PS1 Mice
刊名 Medicinal Plant
作者 Junjie CAI, Fuhong LI, Tianyu WANG, Zhuorui HE, Kaiyue LI, Yufan ZANG, Liqun REN
作者单位 Hebei Key Laboratory of Nerve Injury and Repair,Chengde Medical University
DOI 10.19601/j.cnki.issn2152-3924.2024.06.017
年份 2024
刊期 6
页码 75-78
关键词 Alzheimer’s disease (AD),Human umbilical cord mesenchymal stem cells (hUC-MSCs),APP/PS1 mice,NLRP3 inflammasome
摘要 [Objectives]To investigate the effect of human umbilical cord mesenchymal stem cells (hUC-MSCs) on the NOD-like receptor protein 3 (NLRP3)/cysteinyl aspartate specific proteinase (Caspase-1) pathway within the cerebral cortex of a mouse model of Alzheimer’s disease (AD).[Methods]Twelve 6-month-old female APP/PS1 mice were randomly assigned to two groups:the model group (MOD,n=6) and the hUC-MSCs treatment group (MSC,n=6).Six 6-month-old C57BL/6N mice were utilized as a control group (CON,n=6).All mice underwent caudal vein injections of hUC-MSCs.Following a 4-week treatment,the mice from each group were euthanized.The expression levels of NLRP3,Caspase-1 protein,and mRNA in the cerebral cortex of each group were assessed using Western blotting and real-time fluorescence quantitative PCR assays.[Results]The results of immunoblotting showed that the expression levels of NLRP3 and Caspase-1 proteins in the MOD group were significantly higher than those observed in the CON group.Furthermore,the expression levels of NLRP3 and Caspase-1 proteins in the MSC group were found to be lower than those in the MOD group.Additionally,the findings from real-time fluorescence quantitative PCR assay demonstrated that the mRNA levels of NLRP3 and Caspase-1 in the MOD group were elevated compared to the CON group.Conversely,the mRNA levels of NLRP3 and Caspase-1 in the MSC group were reduced in comparison to the MOD group.[Conclusions]hUC-MSCs have the capacity to modulate the expression of the NLRP3/Caspase-1 pathway within the cerebral cortex of APP/PS1 mice.This modulation may be associated with the neuroinflammatory processes mediated by hUC-MSCs in the brains of APP/PS1 mice.