ERα regulates chromosome alignment and spindle dynamics during mitosis

Xianghua Zhang, Hweon Park, Sung Sik Han, Jung Woo Kim, Chang Young Jang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Estrogen receptors are activated by the hormone estrogen and they control cell growth by altering gene expression as a transcription factor. So far two estrogen receptors have been found: ERα and ERβ. Estrogen receptors are also implicated in the development and progression of breast cancer. Here, we found that ERα localized on the spindle and spindle poles at the metaphase during mitosis. Depletion of ERα generated unaligned chromosomes in metaphase cells and lagging chromosomes in anaphase cells in a transcription-independent manner. Furthermore, the levels of β-tubulin and γ-tubulin were reduced in ERα-depleted cells. Consistent with this, polymerization of microtubules in ERα-depleted cells and turnover rate of α/β-tubulin were decreased than in control cells. We suggest that ERα regulates chromosome alignment and spindle dynamics by stabilizing microtubules during mitosis.

Original languageEnglish
Pages (from-to)919-925
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume456
Issue number4
DOIs
Publication statusPublished - 2015 Jan 24

Keywords

  • Chromosome movement
  • ERα
  • Mitotic spindle
  • Spindle dynamics

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Cell Biology
  • Molecular Biology
  • Medicine(all)

Fingerprint Dive into the research topics of 'ERα regulates chromosome alignment and spindle dynamics during mitosis'. Together they form a unique fingerprint.

  • Cite this