Spinal cord injury (SCI) often leads to neuronal loss, axonal degeneration, and behavioral dysfunction. We recently show that reprogramming of NG2 glia produces new neurons, reduces glial scaring, and ultimately leads to improved function after SCI. By examining endogenous neurons, we here unexpectedly uncover that NG2 glia reprogramming also induces robust axonal regeneration of the corticospinal tract and serotonergic neurons. Such reprogramming-induced axonal regeneration may contribute to the reconstruction of neural networks essential for behavioral recovery.
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http://dx.doi.org/10.1016/j.isci.2024.108895 | DOI Listing |
J Transl Med
December 2024
Department of Orthopaedic Surgery, The First Affiliated Hospital of Harbin Medical University, 2075 Qunli Seventh Avenue, Daoli District, Harbin, 150001, Heilongjiang Province, China.
Background: Spinal cord injury (SCI) inflicts a severe burden on patients and lacks effective treatments. Owing to the poor regenerative capabilities of endogenous oligodendrocyte precursor cells (OPCs) following SCI, there is a growing interest in alternative sources, such as human umbilical cord mesenchymal stem cells (HUCMSCs). TET3 is a key DNA demethylase that plays an important role in neural differentiation, but its role in OPC formation is not well understood.
View Article and Find Full Text PDFCNS Neurosci Ther
December 2024
Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, China.
Background: Preterm white matter injury (PWMI) is the most common type of brain injury in preterm infants, in which, oligodendrocyte progenitor cells (OPCs) are predominantly damaged. In this study, human OPCs (hOPCs) were administered to a fetal goat model of PWMI to examine the differentiation potential and therapeutic effects of the cells on PWMI.
Methods: Preterm goat fetuses were subjected to hypoxic-ischemia (HI) via intermittent umbilical cord occlusion (5 min × 5).
Int J Mol Sci
December 2024
Department of Anatomy, Histology and Embryology, Medical University of Sofia, 1431 Sofia, Bulgaria.
Multiple sclerosis (MS) is a chronic neurodegenerative disorder involving demyelination. The cuprizone model is commonly used to study MS by inducing oligodendrocyte stress and demyelination. The subventricular zone (SVZ) plays a key role in neurogenesis, while the neuronal/glial antigen 2 (NG2) is a marker for immature glial cells, involved in oligodendrocyte differentiation.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Ophthalmology, Kansai Medical University, 2-5-1 Shin-machi, Hirakata 573-1010, Osaka, Japan.
Retinopathy of prematurity (ROP) is primarily caused by the exposure of preterm infants with underdeveloped blood vessels to high oxygen concentrations. This damages the astrocytes that promote normal vascular development, leading to avascularity, pathological neovascularization, and retinal detachment, and even blindness as the disease progresses. In this study, the aim was to investigate the differences in the characteristics of astrocytes and blood vessels between wild-type (WT) and genetically modified mice overexpressing platelet-derived growth factor subunit A (PDGF-A) in the retina immediately after high oxygen exposure, a protocol in the oxygen-induced retinopathy (OIR) model of ROP.
View Article and Find Full Text PDFNeurosci Bull
December 2024
School of Physical Education and Sports Science, South China Normal University, Guangzhou, 510006, China.
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