期刊
JOURNAL OF NEURAL TRANSMISSION
卷 109, 期 5-6, 页码 731-745出版社
SPRINGER WIEN
DOI: 10.1007/s007020200061
关键词
Parkinson's disease; cytokines; neurotrophins; apoptosis; gene therapy
Specific degeneration of the nigrostriatal dopamine (DA) neurons of the substantia nigra pars compacta and the resulting loss of nerve terminals accompanied by DA deficiency in the striatum are responsible for most of the movement disturbances called parkinsonism, i.e., muscle rigidity, akinesia, and resting tremor, observed in Parkinson's disease (PD). We and other workers have found changes in the levels of cytokines, neurotrophins, and other apoptosis-related factors in the nigro-striatal region of postmortem brain and/or in the cerebrospinal fluid (CSF) from PD patients, or from animal models of PD such as 1-methyl-4-phenyl-1,2,3,4-tetrahydropyridine (MPTP)-induced PD in mice or 6-hydroxydopamine (6-OHDA)-induced PD in rats. The most remarkable changes observed specifically in the nigrostriatal region were decreased levels of neurotrophins supporting DA neurons. These results indicate that the process of cell death in the nigrostriatal DA neurons in PD may be the so-called programmed cell death, i.e., apoptosis. Thus gene therapy for PD should aim both at supplementing the decreased striatal DA level by introducing the genes of DA-synthesizing enzymes into non-DA cells in the striatum and at supporting or restoring DA neurons by preventing apoptosis by introducing genes that block the process of apoptosis.
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