Role of PTHrP nuclear localization and carboxyl terminus sequences in postnatal spinal cord development

Author(s):  
Yahong Liu ◽  
Qiangcheng Wang ◽  
Qun Wang ◽  
Min Cui ◽  
Yaoyao Jin ◽  
...  
2018 ◽  
Author(s):  
David Ohayon ◽  
Nathalie Escalas ◽  
Philippe Cochard ◽  
Bruno Glise ◽  
Cathy Danesin ◽  
...  

SummaryDuring spinal cord development, both spatial and temporal mechanisms operate to generate glial cell diversity. Here, we addressed the role of the Heparan Sulfate-editing enzyme Sulf2 in the control of gliogenesis in the mouse developing spinal cord and found an unanticipated function for this enzyme. Sulf2 is expressed in ventral spinal progenitors at initiation of gliogenesis, including in Olig2-expressing cells of the pMN domain known to generate most spinal cord oligodendrocyte precursor cells (OPCs). We found that Sulf2 is dispensable for OPC development but required for proper generation of an as-yet-unidentified astrocyte precursor cell (AP) subtype. These cells, like OPCs, express Olig2 while populating the spinal parenchyma at embryonic stages but also retain Olig2 expression as they differentiate into mature astrocytes. We therefore identify a spinal Olig2-expressing AP subtype that segregates early under the influence of the extracellular enzyme Sulf2.


2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Elise Matuzelski ◽  
Alexandra Essebier ◽  
Lachlan Harris ◽  
Richard M. Gronostajski ◽  
Tracey J. Harvey ◽  
...  

Abstract Objective Nuclear Factor One X (NFIX) is a transcription factor expressed by neural stem cells within the developing mouse brain and spinal cord. In order to characterise the pathways by which NFIX may regulate neural stem cell biology within the developing mouse spinal cord, we performed an microarray-based transcriptomic analysis of the spinal cord of embryonic day (E)14.5 Nfix−/− mice in comparison to wild-type controls. Data description Using microarray and differential gene expression analyses, we were able to identify differentially expressed genes in the spinal cords of E14.5 Nfix−/− mice compared to wild-type controls. We performed microarray-based sequencing on spinal cords from n = 3 E14.5 Nfix−/− mice and n = 3 E14.5 Nfix+/+ mice. Differential gene expression analysis, using a false discovery rate (FDR) p-value of p < 0.05, and a fold change cut-off for differential expression of >  ± 1.5, revealed 1351 differentially regulated genes in the spinal cord of Nfix−/− mice. Of these, 828 were upregulated, and 523 were downregulated. This resource provides a tool to interrogate the role of this transcription factor in spinal cord development.


PLoS ONE ◽  
2011 ◽  
Vol 6 (6) ◽  
pp. e20940 ◽  
Author(s):  
Brian Luu ◽  
Debra Ellisor ◽  
Mark Zervas

Author(s):  
V. Kriho ◽  
H.-Y. Yang ◽  
C.-M. Lue ◽  
N. Lieska ◽  
G. D. Pappas

Radial glia have been classically defined as those early glial cells that radially span their thin processes from the ventricular to the pial surfaces in the developing central nervous system. These radial glia constitute a transient cell population, disappearing, for the most part, by the end of the period of neuronal migration. Traditionally, it has been difficult to definitively identify these cells because the principal criteria available were morphologic only.Using immunofluorescence microscopy, we have previously defined a phenotype for radial glia in rat spinal cord based upon the sequential expression of vimentin, glial fibrillary acidic protein and an intermediate filament-associated protein, IFAP-70/280kD. We report here the application of another intermediate filament-associated protein, IFAP-300kD, originally identified in BHK-21 cells, to the immunofluorescence study of radial glia in the developing rat spinal cord.Results showed that IFAP-300kD appeared very early in rat spinal cord development. In fact by embryonic day 13, IFAP-300kD immunoreactivity was already at its peak and was observed in most of the radial glia which span the spinal cord from the ventricular to the subpial surfaces (Fig. 1). Interestingly, from this time, IFAP-300kD immunoreactivity diminished rapidly in a dorsal to ventral manner, so that by embryonic day 16 it was detectable only in the maturing macroglial cells in the marginal zone of the spinal cord and the dorsal median septum (Fig. 2). By birth, the spinal cord was essentially immuno-negative for this IFAP. Thus, IFAP-300kD appears to be another differentiation marker available for future studies of gliogenesis, especially for the early stages of radial glia differentiation.


Author(s):  
Unnikrishnan V S ◽  
Prashanth A S ◽  
Madhusudan Kulkarni

The science of life Ayurveda, not only deals with the prevention of diseases by maintaining health but also with the alleviation of diseases. In this ultra modern era due to change in lifestyles, sedentary works and food habits, people are unable to follow the Dinacharya and Ritucharya as explained in the classics, which may lead to different diseases. Due to improper postural habits, weight bearing and other unwholesome diets and habits there are higher the chances of discomfort and disease pertaining to spinal cord. Manyasthambha is one such condition that disturbs a big population due to today’s alterations in lifestyle. Here an effort is made to study and understand the role of Nasya Karma, Nasaapana and Shamanaushadhi like Vyoshadi Guggulu in the treatment aspect of this disease. Nasya Karma and Nasaapana provided highly significant results in all the symptoms of Manyasthambha. As per the clinical data, ‘Nasaapana is found to be more effective than Nasya Karma’. So it can be concluded that better results can be obtained with Shaddharana Yoga as Amapachana, Nasaapana with Mashabaladi Kwatha followed by Vyoshadi Guggulu as Shamanoushadhi.


Sign in / Sign up

Export Citation Format

Share Document