Previous studies have shown that oligodendrocytes and motor neurons have the same progenitors in the ventral spinal cord called spinal cord progenitor cells marked by oligodendrocyte lineage transcription factor 2 (Olig2). However, it is difficult to identify the spinal cord progenitor cell in vitro as they are present transiently and further transform into other neuronal (interneuron) and glial (oligodendrocyte) lineages during development. In the present study, we try to generated Olig2 spinal cord progenitor cells from human induced neural stem cells (iNSCs) and identify those spinal cord progenitor cells in vitro Human peripheral blood mononuclear cells (PBMCs) were converted into induced neural stem cells (iNSCs), after they were identified by immunostaining using neural stem cell markers such as Nestin, Sox1, Sox2, iNSCs were transformed into Olig2 spinal cord progenitor cells in 3 weeks by using small molecules. Olig2 spinal cord progenitor cells could expand for at least five passages and remained in a dividing state over a considerable period of time; in addition, the Olig2 progenitor cells could mature into O4 and MBP positive oligodendrocytes and HB9 positive motor neurons in a short period. Our research provides a useful protocol for rapid generation of human oligodendrocytes and motor neurons from human iNSCs and demonstrates a progenitor cell model for exploring the origin of motor neurons and oligodendrocyte in vitro, which will contribute to research on the development of spinal cord and regenerative medicine.
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http://dx.doi.org/10.1080/03008207.2019.1670651 | DOI Listing |
Inflammation
January 2025
The Key Laboratory of Spine and Spinal Cord Disease of Jiangxi Province, Nanchang, 330006, China.
Inflammatory bone resorption represents a pathological condition marked by an increase in bone loss, commonly associated with chronic inflammatory conditions such as rheumatoid arthritis and periodontitis. Current therapies primarily focus on anti-inflammatory drugs and bisphosphonates; however, these treatments are limited due to side effects, inadequate efficacy, and unpredictable long-term complications. Kurarinone (KR), a bioactive compound isolated from the traditional Chinese herb Sophora flavescens, exhibits a range of biological activities, including anti-inflammatory, anticancer, and cardiovascular protective effects.
View Article and Find Full Text PDFActa Neurochir (Wien)
January 2025
Department of Neurosurgery and Department of Neuroscience, Fujian Key Laboratory of Brain Tumors Diagnosis and Precision Treatment, Xiamen Key Laboratory of Brain Center, the First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.
Purpose: To investigate the technique for dorsal median sulcus (DMS) mapping and assess its application value in preserving dorsal columnn (DC) function during intramedullary space occupying surgery based on a single-center experience.
Methods: A retrospective analysis was conducted on 41 cases of intramedullary spinal cord tumor admitted to the Department of Neurosurgery at the First Affiliated Hospital of Xiamen University from March 2017 to August 2023. All included cases underwent intraoperative electrophysiological monitoring, and were divided into a study group (n = 18) and a control group (n = 23), based on whether DMS mapping technique was utilized.
Nat Biomed Eng
January 2025
Department of Neurosurgery, University of Texas Medical Branch, Galveston, TX, USA.
Curr Top Dev Biol
January 2025
Development, Aging, and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States. Electronic address:
All-trans RA (ATRA) is a small molecule derived from retinol (vitamin A) that directly controls gene expression at the transcriptional level by serving as a ligand for nuclear ATRA receptors. ATRA is produced by ATRA-generating enzymes that convert retinol to retinaldehyde (retinol dehydrogenase; RDH10) followed by conversion of retinaldehyde to ATRA (retinaldehyde dehydrogenase; ALDH1A1, ALDH1A2, or ALDH1A3). Determining what ATRA normally does during vertebrate development has been challenging as studies employing ATRA gain-of-function (RA treatment) often do not agree with genetic loss-of-function studies that remove ATRA via knockouts of ATRA-generating enzymes.
View Article and Find Full Text PDFBrain Behav Immun
January 2025
Laboratories of Neuroimmunology, Department of Symptom Research, University of Texas MD Anderson Cancer Center, Houston, USA. Electronic address:
Preclinical and clinical studies have established that autoreactive immunoglobulin G (IgG) can drive neuropathic pain. We recently demonstrated that sciatic nerve chronic constriction injury (CCI) in male and female mice results in the production of pronociceptive IgG, which accumulates around the lumbar region, including within the dorsal root ganglia (DRG) and spinal cord, facilitating the development of neuropathic pain. These data raise the intriguing possibility that neuropathic pain may be alleviated by reducing the accumulation of IgG.
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