DOI: 10.1002/ame2.70138
Neural stem cells transplantation combined with ethyl stearate promotes the activation of quiescent NSCs and improves PD rats motor behavior
Xiaoxiao Yang1
Haisheng Ma1
Lan Yi1
Qi Zheng2
Sen Ye1
Jun Zhong3
Xican Li4
Hui Li5
Caixia Li1
1.School of Basic Medical Sciences,Guangzhou University of Chinese Medicine,Guangzhou,China;Research Center of Basic Integrative Medicine,School of Basic Medical Sciences,Guangzhou University of Chinese Medicine,Guangzhou,China2.School of Information Science and Technology,Guangdong University of Foreign Studies,Guangzhou,China3.Key Laboratory of Tropical Translational Medicine of Ministry of Education,School of Basic Medicine and Life Sciences,Hainan Medical University,Haikou,China4.School of Pharmaceutical Sciences,Guangzhou University of Chinese Medicine,Guangzhou,China5.School of Basic Medical Sciences,Guangzhou University of Chinese Medicine,Guangzhou,China
摘要：Background:This research aimed to examine the impact of co-transplantation of ethyl stearate(PubChem CID:8122)and neural stem cells(NSCs)on endogenous NSCs in Parkinson's disease(PD)model rats,and also determine the impact of ethyl stearate on quiescent neural stem cells(qNSCs)and explore its possible mechanism.
Methods:The induction of PD rats was achieved through the injection of 6-hydroxydopamine(6-OHDA)into the right striatum(STR)and substantia nigra(SN).Transplant treatment was then followed for 6weeks in the right STR.Apomorphine(APO)-induced rotation behavior and the pole climbing test were used to assess the effects of transplant treatment in each group.Western blotting(WB)and immuno-fluorescence staining were used to observe changes in endogenous NSCs.The effect of ethyl stearate on qNSCs was examined in vitro,with detection of associated indica-tors achieved through WB,immunofluorescence,flow cytometry and qRT-PCR.
Results:Co-transplantation of NSCs with ethyl stearate significantly ameliorated motor deficits in PD rats and upregulated the expression of tyrosine hydroxylase(TH),Sox2,and Nestin.We established an in vitro system for NSC quiescence and activation.In qNSCs,ethyl stearate treatment increased Ki67 positivity and reduced the proportion of cells in the G0-G1 phase of the cell cycle,whereas withdrawal of ethyl stearate exerted the opposite effects.Ethyl stearate also downregulated EphB2 protein levels and upregulated p-AKT and CyclinD1 in qNSCs;these effects were re-versed upon its removal.
Conclusion:These findings imply that co-transplantation of NSCs and ethyl stea-rate may help ameliorate motor impairment in PD rats by activating endogenous NSCs and promoting their development into dopaminergic neurons.Ethyl stearate may regulate the entry and exit of NSCs from quiescence through the EphB2/AKT/CyclinD1 pathway.
机标关键词：behaviorstemcellsmotornscsratswithactivation
论文发表日期：2026-02-28
在线出版日期：2026-03-31（本平台首次上网日期，不代表文献的发表时间）
页数：15( 249-263 )
英文信息