Cited by 58Microtubule and mitosis dynamicsGenomics and Chromatin DynamicsDNA Repair Mechanisms

PTEN regulates EG5 to control spindle architecture and chromosome congression during mitosis

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He, Jinxue, Zhang, Zhong, Ouyang, Meng, Yang, Fan, Hao, Hongbo, Lamb, Kristy L., Yang, Jingyi, Yin, Yuxin +1 more·2016·Nature Communications

Abstract

Architectural integrity of the mitotic spindle is required for efficient chromosome congression and accurate chromosome segregation to ensure mitotic fidelity. Tumour suppressor PTEN has multiple functions in maintaining genome stability. Here we report an essential role of PTEN in mitosis through regulation of the mitotic kinesin motor EG5 for proper spindle architecture and chromosome congression. PTEN depletion results in chromosome misalignment in metaphase, often leading to catastrophic mitotic failure. In addition, metaphase cells lacking PTEN exhibit defects of spindle geometry, manifested prominently by shorter spindles. PTEN is associated and co-localized with EG5 during mitosis. PTEN deficiency induces aberrant EG5 phosphorylation and abrogates EG5 recruitment to the mitotic spindle apparatus, leading to spindle disorganization. These data demonstrate the functional interplay between PTEN and EG5 in controlling mitotic spindle structure and chromosome behaviour during mitosis. We propose that PTEN functions to equilibrate mitotic phosphorylation for proper spindle formation and faithful genomic transmission.

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  • PTEN mutation leads to disruption of proper spindle assembly and chromosome segregation, resulting in mitotic catastrophe.

    “PTEN mutation leads to disruption of proper spindle assembly and chromosome segregation, which results in mitotic catastrophe [93,94].”

    From Permeabilizing Cell Membranes with Electric Fields (2021) · cites this paper as [93]

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Authors
He, J., Zhang, Z., Ouyang, M., Yang, F., Hao, H., Lamb, K. L., Yang, J., Yin, Y., & Shen, W. H.
Affiliations
Cornell University (US)
Corresponding author
  • Yin, Yuxin
  • Shen, Wen H.
Venue
Nature Communications
Published
2016-08-05
Volume
7
Issue
1
Pages
12355-12355
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2484938636
Cited by
58
References
54
Citations by year
2026: 6 · 2025: 4 · 2024: 3 · 2023: 5 · 2022: 8 · 2021: 6 · 2020: 5 · 2019: 7 · 2018: 3 · 2017: 8 · 2016: 2
FWCI
4.58
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • China Scholarship Council
  • National Institutes of Health
  • National Cancer Institute (R01CA133008)
  • National Institute of General Medical Sciences (R01GM100478)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
PTEN, Eg5, chromosome congression, mitosis, kinesin motors, chromosome misalignment, mitotic failure, genome stability, tumour suppressor
MeSH terms
Animals, HeLa Cells, Humans, Mitosis, Spindle Apparatus, Phosphorylation, Protein Binding, Kinesins, Chromosome Segregation, PTEN Phosphohydrolase, Mice

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