In vitro transdifferentiation of human cultured CD34+ stem cells into oligodendrocyte precursors using thyroid hormones
| Autor: | Potukuchi Venkata Gurunadha Krishna Sarma, Lokanathan Srikanth, Chodimella Chandrasekhar, Bodapati Chandra Mouleshwara Prasad, Bhuma Vengamma, Katari Venkatesh |
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| Rok vydání: | 2014 |
| Předmět: |
Male
Receptor Platelet-Derived Growth Factor alpha Triiodothyronine Reverse Cellular differentiation CD34 Antigens CD34 Nerve Tissue Proteins Biology OLIG2 Neural Stem Cells Neurosphere medicine Basic Helix-Loop-Helix Transcription Factors Humans Myelin Proteolipid Protein Cells Cultured General Neuroscience Transdifferentiation Oligodendrocyte differentiation Oligodendrocyte Transcription Factor 2 Oligodendrocyte Cell biology Culture Media Oligodendroglia Thyroxine medicine.anatomical_structure Immunology Cell Transdifferentiation Stem cell 2' 3'-Cyclic-Nucleotide Phosphodiesterases |
| Zdroj: | Neuroscience letters. 588 |
| ISSN: | 1872-7972 |
| Popis: | The extent of myelination on the axon promotes transmission of impulses in the neural network, any disturbances in this process results in the neurodegenerative condition. Transplantation of oligodendrocyte precursors that supports in the regeneration of axons through myelination is an important step in the restoration of damaged neurons. Therefore, in the present study, the differentiation of human CD34+ stem cells into oligodendrocytes was carried out. The pure human CD34+ culture developed from the stem cells obtained from a peripheral blood of a donor were subjected to oligodendrocyte differentiation medium (ODM). The ODM at a concentration of 40 ng/ml thyroxine, 40 ng/ml 3,3′,5-tri-iodo-thyronine showed distinct morphological changes from day 6 to 9 with cells exhibiting conspicuous stellate morphology and extensive foot processes. The real-time PCR analysis showed prominent expression of Olig2, CNPase, PDGFRα and PLP1/DM20 in the differentiated cells confirming the formed cells are oligodendrocyte precursors. The expression of these genes increased from days 6 to 9 corresponding to the morphological changes observed with almost no expression of GFAP+ cells. The distinct CNPase activity was observed in these differentiated cells compared to normal CD34+ stem cells correlating with results of real-time PCR conclusively explains the development of oligodendrocytes from human CD34+ stem cells. |
| Databáze: | OpenAIRE |
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