Cytokinesis-Block Micronucleus Cytome Assay Evolution into a More Comprehensive Method to Measure Chromosomal Instability.
Cytokinesis-Block Micronucleus Cytome Assay Evolution into a More Comprehensive Method to Measure Chromosomal Instability.
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DOI:
10.3390/genes11101203
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发表时间:
2020-10-15
期刊:
影响因子:
3.5
通讯作者:
Fenech M
中科院分区:
文献类型:
--
作者:
Fenech M
This review describes the cytokinesis-block micronucleus (CBMN) cytome assay and its evolution into a molecular cytogenetic method of chromosomal instability (CIN). Micronuclei (MNi) originate from whole chromosomes or chromosome fragments that fail to segregate to the poles of the cell during mitosis. These lagging chromosomes are excluded from the daughter nuclei and are enveloped in their own membrane to form MNi. The CBMN assay was developed to allow MNi to be scored exclusively in once-divided binucleated cells, which enables accurate measurement of chromosome breakage or loss without confounding by non-dividing cells that cannot express MNi. The CBMN assay can be applied to cell lines in vitro and cells such as lymphocytes that can be stimulated to divide ex vivo. In the CBMN assay, other CIN biomarkers such as nucleoplasmic bridges (NPBs) and nuclear buds (NBUDs) are also measured. Use of centromere, telomere, and chromosome painting probes provides further insights into the mechanisms through which MNi, NPBs and NBUDs originate. Measurement of MNi is also important because entrapment within a micronucleus may cause chromosomes to shatter and, after nuclear reintegration, become rearranged. Additionally, leakage of DNA from MNi can stimulate inflammation via the cyclic GMP-AMP Synthase—Stimulator of Interferon Genes (cGAS-STING) DNA sensing mechanism of the innate immune system.
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DOI:
10.1016/0165-1161(85)90015-9
发表时间:
1985-01-01
期刊:
MUTATION RESEARCH
影响因子:
--
作者:
FENECH, M;MORLEY, AA
通讯作者:
MORLEY, AA
影响因子:
2.3
作者:
Guo, Xiaoxia;Yang, Yunshan;Li, Shaokun
通讯作者:
Li, Shaokun
影响因子:
2.7
作者:
Fenech, M
通讯作者:
Fenech, M
DOI:
10.1080/15384101.2018.1515555
发表时间:
2018
期刊:
Cell cycle (Georgetown, Tex.)
影响因子:
--
作者:
Chan YW;West SC
通讯作者:
West SC
DOI:
10.1016/s0027-5107(02)00086-6
发表时间:
2002-07-25
影响因子:
2.3
作者:
Fenech, M;Crott, JW
通讯作者:
Crott, JW