Neural stem cells (NSCs) are characterized by their potential for self-renewal and ability to differentiate into neurons, astrocytes, and oligodendrocytes. They are of great value to scientific studies and clinical applications. Culturing NSCs is important for characterizing their properties under controlled environmental conditions that may be modified and monitored accurately. The present study explored a modified, detailed and efficient protocol for the isolation, culture and cryopreservation of rat embryonic NSCs. In particular, the viability, nestin expression, and self-renewal and multi-differentiation capabilities of NSCs cryopreserved for various periods of time (7 days, or 1, 6 or 12 months) were characterized and compared. Rat embryonic NSCs were successfully obtained and maintained their self-renewal and multipotent differentiation capabilities even following long-term cryopreservation (for up to 12 months).
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http://dx.doi.org/10.3892/etm.2020.9285 | DOI Listing |
Stem Cell Res Ther
December 2024
National Colorectal Disease CenterNanjing Hospital of Chinese Medicine, Affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, Jiangsu, People's Republic of China.
Background: Complex perianal fistulas, challenging to treat and prone to recurrence, often require surgical intervention that may cause fecal incontinence and lower quality of life due to large surgical wounds and potential sphincter damage. Human umbilical cord-derived MSCs (hUC-MSCs) and their exosomes (hUCMSCs-Exo) may promote wound healing.
Methods: This study assessed the efficacy, mechanisms, and safety of these exosomes in treating complex perianal fistulas in SD rats.
Zhongguo Dang Dai Er Ke Za Zhi
December 2024
Department of Neonatology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China.
Objectives: To observe the reparative effects of human umbilical cord mesenchymal stem cell (hUC-MSC) transplantation on white matter injury (WMI) in neonatal rats and explore its mechanism through the nuclear factor-kappa B (NF-κB) signaling pathway mediated by microglial cells.
Methods: Sprague-Dawley rats, aged 2 days, were randomly divided into three groups: sham-operation,WMI, and hUC-MSC (=18 each). Fourteen days after modeling, hematoxylin-eosin staining was used to observe pathological changes in the white matter, and immunofluorescence staining was used to measure the expression level of ionized calcium-binding adapter molecule 1 (Iba1).
Toxicol Appl Pharmacol
December 2024
Department of Applied Chemistry and Life Sciences, Graduate School of Engineering, Toyohashi University of Technology, Toyohashi, Aichi 441-8580, Japan; Center for Diversity and Inclusion, Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan. Electronic address:
Concerns have been raised regarding acetamiprid (ACE), a neonicotinoid insecticide, due to its potential neurodevelopmental toxicity. ACE, which is structurally similar to nicotine, acts as an agonist of nicotinic acetylcholine receptors (nAChRs) and resists degradation by acetylcholinesterase. Furthermore, ACE has been reported to disrupt neuronal transmission and induce developmental neurotoxicity and ataxia in animal models.
View Article and Find Full Text PDFStem Cell Res Ther
December 2024
Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Objective: Spinal cord injury (SCI) is a severe and permanent nerve damage condition that poses significant burdens on individuals and society. Various therapeutic approaches have been explored to mitigate the consequences of SCI. Tissue engineering and regenerative medicine have emerged as a promising avenue for addressing this issue.
View Article and Find Full Text PDFPLoS One
December 2024
Department of Orthopaedic Surgery, Kyoto University, Kyoto, Japan.
Unlabelled: Human umbilical cord-derived mesenchymal stromal cells (UC-MSCs), which can be prepared in advance and are presumed to be advantageous for nerve regeneration, have potential as a cell source for Bio 3D conduits. The purpose of this study was to evaluate the nerve regeneration ability of Bio 3D conduits made from UC-MSCs using a rat sciatic nerve defect model.
Methods: A Bio 3D conduit was fabricated using a Bio 3D printer by placing UC-MSC spheroids into thin needles according to predesigned 3D data.
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