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Int. J. Mol. Sci. 2014, 15(6), 10738-10750; doi:10.3390/ijms150610738

Damage of Neuroblastoma Cell SH-SY5Y Mediated by MPP+ Inhibits Proliferation of T-Cell Leukemia Jurkat by Co-Culture System

School of Life Science, Beijing Institute of Technology, No. 5 Zhongguancun Nandajie, Haidian District, Beijing 100081, China
Authors to whom correspondence should be addressed.
Received: 3 January 2014 / Revised: 19 May 2014 / Accepted: 3 June 2014 / Published: 13 June 2014
(This article belongs to the Special Issue Neuroprotective Strategies 2014)
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The adaptive immune system has implications in pathology of Parkinson’s disease (PD). Research data demonstrated that the peripheral CD4+ T-cell population decreased in pathogenesis of PD. The effect of damaged dopaminergic neurons on peripheral T cells of PD is still unknown. In this study, we constructed a neuronal and glial cells co-culture model by using human neuroblastoma cells SH-SY5Y and gliomas cells U87. After the co-culture cells were treated with neurotoxin 1-methyl-4-phenylpyridinium (MPP+) for 24 h, the conditioned media was harvested and used to cultivate T-cell leukemia Jurkat cells for another 24 h. We then analyzed the cell proliferation, cell cycle and necrosis effect of Jurkat cells. The results showed that co-culture medium of SH-SY5Y and U87 cells with MPP+ treatment inhibited the proliferation of Jurkat cells compared to control medium without MPP+, even though the same concentration of MPP+ had very little toxicity to the Jurkat cell. Furthermore, co-culture medium with low concentration of MPP+ (100 µM) arrested Jurkat cells cycle in G2/M phase through increasing cell cycle division 2 (CDC2) and CyclinB1 expression level, whereas co-culture medium with high concentration of MPP+ (500 µM) induced Jurkat cell necrosis through cellular swelling and membrane breakage. Our data implies that damaged dopamine neurons with glial cells can lead to the reduced number or inhibited proliferation activity of peripheral T cells. View Full-Text
Keywords: Parkinson’s disease; co-culture; human T-cell leukemia; cell cycle; necrosis Parkinson’s disease; co-culture; human T-cell leukemia; cell cycle; necrosis

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Wang, F.; Awan, U.F.; Wang, Y.; Wang, L.; Qing, H.; Ma, H.; Deng, Y. Damage of Neuroblastoma Cell SH-SY5Y Mediated by MPP+ Inhibits Proliferation of T-Cell Leukemia Jurkat by Co-Culture System. Int. J. Mol. Sci. 2014, 15, 10738-10750.

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