scholarly journals Isolation and Characterization of Neural Stem Cells from the Rat Inferior Colliculus

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Johannes Völker ◽  
Jonas Engert ◽  
Christine Völker ◽  
Linda Bieniussa ◽  
Philipp Schendzielorz ◽  
...  

The inferior colliculus (IC) is a nucleus of the auditory pathway and its fourth relay station. It integrates afferent information from the superior olivary complex and the cochlear nucleus. To date, no causal therapeutic options are known for damaged neuronal structures in this area. Regenerative medicine offers a potential approach to causally treating hearing impairment. After neural stem cells had been identified in certain areas of the auditory pathway, the question arouses, whether the IC also has a neurogenic potential. Cells from the IC of postnatal day 6 rats were extracted and cultured as neurospheres. Cells in the neurospheres showed mitotic activity and positive stain of neural stem cell markers (Nestin, DCX, Atoh1, and Sox-2). In addition, single cells were differentiated into neuronal and glial cells shown by the markers β-III-tubulin, GFAP, and MBP. In summary, basic stem cell criteria could be detected and characterized in cells isolated from the IC of the rat. These findings will lead to a better understanding of the development of the auditory pathway and may also be relevant for identifying causal therapeutic approaches in the future.

1996 ◽  
Vol 91 (2) ◽  
pp. 141-146 ◽  
Author(s):  
P. H. Jones

1. The keratinocytes in human epidermis are constantly turned over and replaced by a population of stem cells located in the basal epidermal layer. Until recently there were no markers allowing the isolation of viable epidermal stem cells. However, it has now been shown that epidermal stem cells can be isolated both in vitro and direct from the epidermis as they express high levels of functional β1 integrin family receptors for extracellular matrix proteins. 2. The evidence for integrins as stem cell markers and the insights that have been gained into stem cell behaviour are reviewed.


2006 ◽  
Vol 184 (3-4) ◽  
pp. 105-116 ◽  
Author(s):  
Irina Kerkis ◽  
Alexandre Kerkis ◽  
Dmitri Dozortsev ◽  
Gaëlle Chopin Stukart-Parsons ◽  
Sílvia Maria Gomes Massironi ◽  
...  

Biomedicines ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1134
Author(s):  
Julia I. Khorolskaya ◽  
Daria A. Perepletchikova ◽  
Daniel V. Kachkin ◽  
Kirill E. Zhurenkov ◽  
Elga I. Alexander-Sinkler ◽  
...  

The development of cell-based approaches to the treatment of various cornea pathologies, including limbal stem cell deficiency (LSCD), is an area of current interest in regenerative biomedicine. In this context, the shortage of donor material is urgent, and limbal mesenchymal stem cells (L-MSCs) may become a promising cell source for the development of these novel approaches, being established mainly within the rabbit model. In this study, we obtained and characterized rabbit L-MSCs and modified them with lentiviral transduction to express the green fluorescent protein EGFP (L-MSCs-EGFP). L-MSCs and L-MSCs-EGFP express not only stem cell markers specific for mesenchymal stem cells but also ABCG2, ABCB5, ALDH3A1, PAX6, and p63a specific for limbal epithelial stem cells (LESCs), as well as various cytokeratins (3/12, 15, 19). L-MSCs-EGFP have been proven to differentiate into adipogenic, osteogenic, and chondrogenic directions, as well as to transdifferentiate into epithelial cells. The possibility of using L-MSCs-EGFP to study the biocompatibility of various scaffolds developed to treat corneal pathologies was demonstrated. L-MSCs-EGFP may become a useful tool for studying regenerative processes occurring during the treatment of various corneal pathologies, including LSCD, with the use of cell-based technologies.


2021 ◽  
Vol 765 ◽  
pp. 136293
Author(s):  
Sarah Ingrid Pinto Santos ◽  
Vanessa Cristina de Oliveira ◽  
Naira Caroline Godoy Pieri ◽  
Fabiana Fernandes Bressan ◽  
Carlos Eduardo Ambrósio ◽  
...  

2016 ◽  
Vol 343 (2) ◽  
pp. 190-207 ◽  
Author(s):  
Tiziana Annese ◽  
Patrizia Corsi ◽  
Simona Ruggieri ◽  
Roberto Tamma ◽  
Christian Marinaccio ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Seyed Mojtaba Hosseini ◽  
Tahere Talaei-khozani ◽  
Mahsa Sani ◽  
Bahareh Owrangi

Objectives.Human breast milk contains a heterogeneous population of cells that have the potential to provide a noninvasive source of cells for cell therapy in many neurodegenerative diseases without any ethical concern. The objectives of this study were to differentiate the breast milk-derived stem cells (BMDSC) toward neural stem cells and then into the neurons and neuroglia.Materials and Methods.To do this, the BMDSC were isolated from human breast milk and cultured in Dulbecco’s modified Eagle medium/F12 (DMEM/F12) containing fibroblast growth factor (bFGF). The cells were then characterized by evaluation of the embryonic and stem cell markers. Then, the cells were exposed to culture medium containing 1% B27 and 2% N2 for 7–10 days followed by medium supplemented with B27, N2, bFGF 10 µg/mL, and endothelial growth factor (EGF) 20 µg/mL. Then, the sphere-forming assay was performed. The spheres were then differentiated into three neural lineages by withdrawing growth factor in the presence of 5% FBS (fetal bovine serum). The immunofluorescence was done forβ-tubulin III, O4, and GFAP (glial fibrillary acidic protein).Results.The results indicated that the cells expressed both embryonic and mesenchymal stem cell (MSC) markers. They also showed neurospheres formation that was nestin-positive. The cells were also differentiated into all three neural lineages.Conclusion.The BMDSC can behave in the same way with neural stem cells. They were differentiated into oligodendrocytes, and astrocytes as well as neurons.


2011 ◽  
Vol 343 (3) ◽  
pp. 499-508 ◽  
Author(s):  
Kristen Rak ◽  
Natalia V. Wasielewski ◽  
Andreas Radeloff ◽  
Johannes Völkers ◽  
Agmal Scherzed ◽  
...  

Cells ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 595
Author(s):  
Lucía de de Miguel-Gómez ◽  
Sara López-Martínez ◽  
Emilio Francés-Herrero ◽  
Adolfo Rodríguez-Eguren ◽  
Antonio Pellicer ◽  
...  

Adult stem cells (ASCs) were long suspected to exist in the endometrium. Indeed, several types of endometrial ASCs were identified in rodents and humans through diverse isolation and characterization techniques. Putative stromal and epithelial stem cell niches were identified in murine models using label-retention techniques. In humans, functional methods (clonogenicity, long-term culture, and multi-lineage differentiation assays) and stem cell markers (CD146, SUSD2/W5C5, LGR5, NTPDase2, SSEA-1, or N-cadherin) facilitated the identification of three main types of endogenous endometrial ASCs: stromal, epithelial progenitor, and endothelial stem cells. Further, exogenous populations of stem cells derived from bone marrow may act as key effectors of the endometrial ASC niche. These findings are promoting the development of stem cell therapies for endometrial pathologies, with an evolution towards paracrine approaches. At the same time, promising therapeutic alternatives based on bioengineering have been proposed.


Author(s):  
Jonas Engert ◽  
Kristen Rak ◽  
Linda Bieniussa ◽  
Miriam Scholl ◽  
Rudolf Hagen ◽  
...  

Abstract Neural stem cells (NSCs) have been recently identified in the inferior colliculus (IC). These cells are of particular interest, as no casual therapeutic options for impaired neural structures exist. This research project aims to evaluate the neurogenic potential in the rat IC from early postnatal days until adulthood. The IC of rats from postnatal day 6 up to 48 was examined by neurosphere assays and histological sections. In free-floating IC cell cultures, neurospheres formed from animals from early postnatal to adulthood. The amount of generated neurospheres decreased in older ages and increased with the number of cell line passages. Cells in the neurospheres and the histological sections stained positively with NSC markers (Doublecortin, Sox-2, Musashi-1, Nestin, and Atoh1). Dissociated single cells from the neurospheres differentiated and were stained positively for the neural lineage markers β-III-tubulin, glial fibrillary acidic protein, and myelin basic protein. In addition, NSC markers (Doublecortin, Sox-2, CDK5R1, and Ascl-1) were investigated by qRT-PCR. In conclusion, a neurogenic potential in the rat IC was detected and evaluated from early postnatal days until adulthood. The identification of NSCs in the rat IC and their age-specific characteristics contribute to a better understanding of the development and the plasticity of the auditory pathway and might be activated for therapeutic use.


2013 ◽  
Vol 124 (6) ◽  
pp. 450-456 ◽  
Author(s):  
Kuldeep Kumar ◽  
Renu Singh ◽  
Manish Kumar ◽  
Pranjali Agarwal ◽  
P S Mahapatra ◽  
...  

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