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High Glucose Content Abrogated the Normal Activity of Heat Shock Protein Signaling Pathway in Human Neuroblastoma
Leila Salimi1, Sadegh Salarinasab2, Reza Rahbarghazi3
1Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Background:
Detrimental effects of high glucose content (HGC) were proved in different tissues such as the central nervous system. It seems that diabetic conditions could also alter the functional behavior of stem cells residing in the context of the nervous system.
Methods:
The possible effects of 40 and 70 mmol glucose were examined on HSP70 signaling pathways with a specific focus on protein translation, folding values of human neuroblastoma cell line SHSY-5Y after 72 h. Human neuroblastoma cells were exposed to 5, 40 and 70 mmol glucose doses. The transcription level of genes related to HSP70 signaling was also evaluated by PCR array.
Results:
The data from PCR array showed high glucose especially 70 mmol could potentially modulate the normal function of protein folding, endoplasmic reticulum derived protein folding and synthesis in neuroblastoma cells (p <0.05).
Conclusions:
Data showed that high glucose condition makes neuroblastoma cells prone to biochemical insufficiency by affecting the function of HSP70 signaling pathway and protein synthesis.
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