Investigation of the pathology of brain derived endothelial cells in in-vitro hypoxia models için kapak resmi
Investigation of the pathology of brain derived endothelial cells in in-vitro hypoxia models
Başlık:
Investigation of the pathology of brain derived endothelial cells in in-vitro hypoxia models
Yazar:
Erdemli, Kısmet Tuğçe, author.
Fiziksel Tanımlama:
ix, 62 leaves: charts;+ 1 computer laser optical disc.
Özet:
The blood brain barrier (BBB) is a vital structure that protects brain homeostasis. Endothelial cells (EC) have a significant role in regulating the BBB structure and function. Several studies have revealed the association of SUR1-TRPM4 channels that regulate this secondary damage of CNS injuries. After the activation of the channel, Na+ influx causes depolarization, cell swelling (edema) and ultimately oncotic cell death. Hypoxia inducing factor (HIF) transcription factor that has been reported to activate more than 100 genes to adapt to a hypoxic condition. Once Hif1-􁃴 is translocated into the nucleus, it can dimerize with HIF1-ß to produce HIF that is critical in hypoxic conditions and regulate cell cycle arrest or cell death pathways. Hypoxia can occur in an O2 dependent and independent manner. In this study, CoCl2 and hypoxia chamber which was cost-effective and reliable were optimized. Cellular death was calculated with Trypan blue staining in this novel hypoxia chamber model and compared with CoCl2 models. In addition, morphological changes were observed in microscopic analysis. Hif1-􁃴, caspase-3 and NF-κB translocation to the nucleus localization were quantified. Cell viability was different between the CoCl2 model and novel hypoxia chamber model at 24 hours. The cellular death increased with CoCl2 exposure, where no change was noted in the hypoxia chamber model. Time dependent Hif1-􁃴 upregulation was also demonstrated that peaked at 12-hours. Finally, NF-κB translocation into the nucleus was significantly increased at 24 hours of hypoxia exposure. The results reveal that the inflatable hypoxia chamber model could be reliably used to mimic hypoxia in an in-vitro setting. Hif1-􁃴 activated in a time dependent manner, along with NF-κB. The upregulation of these transcription factors can ultimately affect the cellular death mechanisms differently.
Yazar Ek Girişi:
Tek Biçim Eser Adı:
Thesis (Master)--İzmir Institute of Technology:Molecular Biology and Genetics.

İzmir Institute of Technology: Molecular Biology and Genetics --Thesis (Master).
Elektronik Erişim:
Access to Electronic Versiyon.
Ayırtma: Copies: