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Journal of Neurosurgical Sciences 2021 May 03

DOI: 10.23736/S0390-5616.21.05314-5

Copyright © 2021 EDIZIONI MINERVA MEDICA

lingua: Inglese

Granulocyte-colony stimulating factor, a potential candidate for the treatment of Parkinson's disease

Jiawen YUAN, Li-Xia XUE, Jin-Peng REN

Department of Neurology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China


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BACKGROUND: Granulocyte colony-stimulating factor (G-CSF) activates the PI3K/Akt pathway to exert neuroprotective effects. The current study aimed to determine if G-CSF reverses behavioral deficits, even after motor malfunction occurs in Paraquat (PQ)-treated mice.
METHODS: Male C57BL/6 mice (8 weeks old) were divided into 3 groups: PQ + G-CSF-treated group (n=8); PQ + saline-treated group (n=8); and saline-treated control group (n=8). Spontaneous locomotor activity was evaluated together with the pole test. The DA, 3, 4-dihydroxyphenyl acetic acid (DOPAC), and homovanillic acid (HVA) levels in the bilateral striatum were determined by HPLC. The number of substantia nigra pars compacta tyrosine hydroxylase (TH)-immunoreactive neurons was calculated using an unbiased cell counting stereology method, the activities of total GSH-PX and SOD, and the malondialdehyde (MDA) content were assessed.
RESULTS: After G-CSF treatment, spontaneous motor activity and the Tturn and TLA times in the CSF group were significantly lower than the control group, and the striatal dopamine level in the striatum and the number of TH-positive neurons in the substantia nigra (SN) were significantly increased compared to the control group (5478 ± 654 vs. 3647±488 DA neurons, P < 0.05). Compared to the control group, the GSH-PX and SOD activities were increased, while the MDA level was significantly decreased in the SN (P<0.05).
CONCLUSIONS: The data strongly suggest that G-CSF reverses behavioral deficits in PQ-treated mice with movement disorders. Thus, G-CSF may be utilized as a prospective drug candidate for the treatment of Parkinson's disease.


KEY WORDS: Granulocyte colony-stimulating factor; Glutathione peroxidase; Oxidative stress; Parkinsonism; Superoxide dismutase

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