Chromatin rigidity provides mechanical and genome protection.

Chromatin rigidity provides mechanical and genome protection.
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DOI:
10.1016/j.mrfmmm.2020.111712
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发表时间:
2020-05
期刊:
Mutation research
影响因子:
--
通讯作者:
Stephens AD
Stephens AD
中科院分区:
其他
文献类型:
--
作者:
Stephens AD

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The nucleus is the organelle in the cell that contains the genome and its associate proteins which is collectively called chromatin. New work has shown that chromatin and its compaction level, dictated largely through histone modification state, provides rigidity to protect and stabilize the nucleus. Alterations in chromatin, its mechanics, and downstream loss of nuclear shape and stability are hallmarks of human disease. Weakened nuclear mechanics and abnormal morphology have been shown to cause rupturing of the nucleus which results in nuclear dysfunction including DNA damage. Thus, the rigidity provided by chromatin to maintain nuclear mechanical stability also provides its own protection from DNA damage via compartmentalization maintenance.
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