Chromosome Instability, Aging and Brain Diseases

Chromosome instability (CIN) has been repeatedly associated with aging and progeroid phenotypes. Moreover, brain-specific CIN seems to be an important element of pathogenic cascades leading to neurodegeneration in late adulthood. Alternatively, CIN and aneuploidy (chromosomal loss/gain) syndromes ex...

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Main Authors: Ivan Y. Iourov, Yuri B. Yurov, Svetlana G. Vorsanova, Sergei I. Kutsev
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/10/5/1256
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author Ivan Y. Iourov
Yuri B. Yurov
Svetlana G. Vorsanova
Sergei I. Kutsev
author_facet Ivan Y. Iourov
Yuri B. Yurov
Svetlana G. Vorsanova
Sergei I. Kutsev
author_sort Ivan Y. Iourov
collection DOAJ
description Chromosome instability (CIN) has been repeatedly associated with aging and progeroid phenotypes. Moreover, brain-specific CIN seems to be an important element of pathogenic cascades leading to neurodegeneration in late adulthood. Alternatively, CIN and aneuploidy (chromosomal loss/gain) syndromes exhibit accelerated aging phenotypes. Molecularly, cellular senescence, which seems to be mediated by CIN and aneuploidy, is likely to contribute to brain aging in health and disease. However, there is no consensus about the occurrence of CIN in the aging brain. As a result, the role of CIN/somatic aneuploidy in normal and pathological brain aging is a matter of debate. Still, taking into account the effects of CIN on cellular homeostasis, the possibility of involvement in brain aging is highly likely. More importantly, the CIN contribution to neuronal cell death may be responsible for neurodegeneration and the aging-related deterioration of the brain. The loss of CIN-affected neurons probably underlies the contradiction between reports addressing ontogenetic changes of karyotypes within the aged brain. In future studies, the combination of single-cell visualization and whole-genome techniques with systems biology methods would certainly define the intrinsic role of CIN in the aging of the normal and diseased brain.
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spelling doaj.art-64ed0b56dac54a0fa62a5f0532cab2942023-11-21T20:27:50ZengMDPI AGCells2073-44092021-05-01105125610.3390/cells10051256Chromosome Instability, Aging and Brain DiseasesIvan Y. Iourov0Yuri B. Yurov1Svetlana G. Vorsanova2Sergei I. Kutsev3Yurov’s Laboratory of Molecular Genetics and Cytogenomics of the Brain, Mental Health Research Center, 117152 Moscow, RussiaYurov’s Laboratory of Molecular Genetics and Cytogenomics of the Brain, Mental Health Research Center, 117152 Moscow, RussiaYurov’s Laboratory of Molecular Genetics and Cytogenomics of the Brain, Mental Health Research Center, 117152 Moscow, RussiaResearch Centre for Medical Genetics, 115522 Moscow, RussiaChromosome instability (CIN) has been repeatedly associated with aging and progeroid phenotypes. Moreover, brain-specific CIN seems to be an important element of pathogenic cascades leading to neurodegeneration in late adulthood. Alternatively, CIN and aneuploidy (chromosomal loss/gain) syndromes exhibit accelerated aging phenotypes. Molecularly, cellular senescence, which seems to be mediated by CIN and aneuploidy, is likely to contribute to brain aging in health and disease. However, there is no consensus about the occurrence of CIN in the aging brain. As a result, the role of CIN/somatic aneuploidy in normal and pathological brain aging is a matter of debate. Still, taking into account the effects of CIN on cellular homeostasis, the possibility of involvement in brain aging is highly likely. More importantly, the CIN contribution to neuronal cell death may be responsible for neurodegeneration and the aging-related deterioration of the brain. The loss of CIN-affected neurons probably underlies the contradiction between reports addressing ontogenetic changes of karyotypes within the aged brain. In future studies, the combination of single-cell visualization and whole-genome techniques with systems biology methods would certainly define the intrinsic role of CIN in the aging of the normal and diseased brain.https://www.mdpi.com/2073-4409/10/5/1256aginganeuploidybrain diseaseschromosomechromosome instabilitygenome instability
spellingShingle Ivan Y. Iourov
Yuri B. Yurov
Svetlana G. Vorsanova
Sergei I. Kutsev
Chromosome Instability, Aging and Brain Diseases
Cells
aging
aneuploidy
brain diseases
chromosome
chromosome instability
genome instability
title Chromosome Instability, Aging and Brain Diseases
title_full Chromosome Instability, Aging and Brain Diseases
title_fullStr Chromosome Instability, Aging and Brain Diseases
title_full_unstemmed Chromosome Instability, Aging and Brain Diseases
title_short Chromosome Instability, Aging and Brain Diseases
title_sort chromosome instability aging and brain diseases
topic aging
aneuploidy
brain diseases
chromosome
chromosome instability
genome instability
url https://www.mdpi.com/2073-4409/10/5/1256
work_keys_str_mv AT ivanyiourov chromosomeinstabilityagingandbraindiseases
AT yuribyurov chromosomeinstabilityagingandbraindiseases
AT svetlanagvorsanova chromosomeinstabilityagingandbraindiseases
AT sergeiikutsev chromosomeinstabilityagingandbraindiseases