Shaping of interphase chromosomes by the microtubule network

Yael Maizels, Gabi Gerlitz

Research output: Contribution to journalReview articlepeer-review

25 Scopus citations

Abstract

It is well established that microtubule dynamics play a major role in chromosome condensation and localization during mitosis. During interphase, however, it is assumed that the metazoan nuclear envelope presents a physical barrier, which inhibits interaction between the microtubules located in the cytoplasm and the chromatin fibers located in the nucleus. In recent years, it has become apparent that microtubule dynamics alter chromatin structure and function during interphase as well. Microtubule motor proteins transport several transcription factors and exogenous DNA (such as plasmid DNA) from the cytoplasm to the nucleus. Various soluble microtubule components are able to translocate into the nucleus, where they bind various chromatin elements leading to transcriptional alterations. In addition, microtubules may apply force on the nuclear envelope, which is transmitted into the nucleus, leading to changes in chromatin structure. Thus, microtubule dynamics during interphase may affect chromatin spatial organization, as well as transcription, replication and repair.

Original languageEnglish
Pages (from-to)3500-3524
Number of pages25
JournalFEBS Journal
Volume282
Issue number18
DOIs
StatePublished - 1 Sep 2015

Keywords

  • DNA repair
  • MTOC
  • chromatin
  • dynein
  • interphase
  • kinesin
  • microtubules
  • nuclear envelope
  • nuclear transport
  • transcription

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