Send to

Choose Destination
Cell Cycle. 2005 Dec;4(12):1758-60. Epub 2005 Dec 7.

Individual adult human neurons display aneuploidy: detection by fluorescence in situ hybridization and single neuron PCR.

Author information

Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.


Neurons, once committed, exit the cell cycle and undergo maturation that promote specialized activity and are believed to operate upon a stable genome. We used fluorescence in situ hybridization, selective cell microdissection, and loss of heterozygosity analysis to assess degree of aneuploidy in patients with a neurodegenerative disease and in normal controls. We found that aneuploidy occurs in approximately 40% of mature, adult human neurons in health or disease and may be a physiological mechanism that maintains neuronal fate and function; it does not appear to be an unstable state. The fact that neuronal stem cells can be identified in adult humans and that somatic mosaicism may be found in neuronal precursor cells deserves further investigation before using adult neural stem cells to treat human disease.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Taylor & Francis
Loading ...
Support Center