Saikosaponin‐d improved the stemness of mouse neural stem cells and increased their thermotolerance potential. Issue 4 (24th April 2021)

• Record Type: Journal Article
• Authors: Xu, Panpan; Ma, Xiaofang; Xiao, Xiaolin; Shi, Wanchao; Xue, Na; Liu, Xiaozhi; Zuo, Guoxing; Hu, Sheng; Du, Xinping; Zheng, Jun
• Is Part Of: International journal of developmental neuroscience. Volume 81:Issue 4(2021:Jun.)
• Page Start: 324
• Page End: 332
• Publication Date: 2021-04-24
• Subjects: neural stem cells -- saikosaponin‐d -- stemness -- thermotolerance; Developmental neurobiology -- Periodicals; Neurology -- Periodicals; Neurologie du développement -- Périodiques; Developmental neurobiology; Periodicals; 612.8
• DOI: 10.1002/jdn.10103
• Languages: English
• ISSNs: 0736-5748

Abstract

Abstract: Purpose: To investigate the effect of saikosaponin‐d (Ssd) on proliferation, differentiation, and stemness of neural stem cells (NSCs), and to observe whether Ssd has a protective effect on NSCs at medium‐high and high temperature. Materials and methods: NSCs were extracted from 15‐day fetal mice. After subculture, Ssd treatment was performed. Cell cycle and apoptosis rate were detected by flow cytometry. Western Blot and immunofluorescence assay were used to detect the expression and spatial distribution of Nestin, NSE, GFAP, Oct4, and SOX2. Cell growth morphology was observed under a microscope; the concentration of extracellular lactate dehydrogenase (LDH) was determined by ELISA. Results: Compared with the control group, the proportion of NSCs in the G0/G1 phase increased in the Ssd treatment group; on the contrary, the proportion in the G2/M phase significantly decreased. Microscopically, our results also suggested the sphere‐formation rate increased significantly. Besides, the percentage of dead cells in the Ssd group at 38.5, 40°C were reduced, and the level of LDH release was dropped. Conclusion: Ssd improved the stemness of NSCs, inhibited their differentiation into neural cells, and reduced cell damage under high temperature. Therefore, we speculate that Ssd can improve the thermotolerance of NSCs and protect the nervous system of children with fever. Abstract : The subcellular localization of Nestin, NSE, and GFAP in NSCs were detected by Immunofluorescence staining. Compared with the control group, the number of nerve fibers decreased significantly in the Ssd group. Moreover, different from the increased expression of Nestin, the expression of NES and GFAP showed a downward trend. Therefore, Ssd can indeed inhibit the differentiation of NSCs into neurons and glial neurons and maintain the clonal state of NSCs to reduced cell damage under high temperature.