Cited by 20Reproductive Biology and FertilityMicrotubule and mitosis dynamicsDevelopmental Biology and Gene Regulation

Protein phosphatase 2A regulatory subunit B55α functions in mouse oocyte maturation and early embryonic development

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Liang, Shuang, Guo, Jing, Choi, Jeong-Woo, Shin, Kyung-Tae, Wang, Hai-Yang, Jo, Yu-Jin, Kim, Nam-Hyung, Cui, Xiang-Shun·2017·Oncotarget

Abstract

// Shuang Liang 1 , Jing Guo 1 , Jeong-Woo Choi 1 , Kyung-Tae Shin 1 , Hai-Yang Wang 1 , Yu-Jin Jo 1 , Nam-Hyung Kim 1 , Xiang-Shun Cui 1 1 Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 361–763, Republic of Korea Correspondence to: Xiang-Shun Cui, email: xscui@cbnu.ac.kr Nam-Hyung Kim, email: nhkim@cbun.ac.kr Keywords: PP2A-B55α, oocyte maturation, cytokinesis, preimplantation development, reproduction Received: December 08, 2016 Accepted: February 17, 2017 Published: March 06, 2017 ABSTRACT Protein phosphatase 2A regulatory subunit B55α (PP2A-B55α) has been studied in mitosis. However, its functions in mammalian meiosis and early embryonic development remain unknown. Here, we report that PP2A-B55α is critical for mouse oocyte meiosis and preimplantation embryo development. Knockdown of PP2A-B55α in oocytes led to abnormal asymmetric division, disordered spindle dynamics, defects in chromosome congression, an increase in aneuploidy, and induction of the DNA damage response. Moreover, knockdown of PP2A-B55α in fertilized mouse zygotes impaired development to the blastocyst stage. The impairment of embryonic development might have been due to induction of sustained DNA damage in embryos, which caused apoptosis and inhibited cell proliferation and outgrowth potential at the blastocyst stage. Overall, these results provide a novel insight into the role of PP2A-B55α as a novel meiotic and embryonic competence factor at the onset of life.

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Authors
Liang, S., Guo, J., Choi, J.-W., Shin, K.-T., Wang, H.-Y., Jo, Y.-J., Kim, N.-H., & Cui, X.-S.
Affiliations
  • Chungbuk National University (KR)
  • Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea
Venue
Oncotarget
Published
2017-03-06
Volume
8
Issue
16
Pages
26979-26991
ISSN
1949-2553 (ISSN-L)
OpenAlex
W2592175104
Cited by
20
References
43
Citations by year
2026: 1 · 2025: 3 · 2024: 3 · 2023: 1 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 4
FWCI
2.31
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Oncotarget (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Research Foundation
  • Rural Development Administration (PJ011126)
  • National Research Foundation of Korea (2015R1D1A1A01057629)
  • China Scholarship Council
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Biology and Fertility
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
protein phosphatase 2A, oocyte maturation, meiosis, preimplantation embryo development, asymmetric cell division, spindle dynamics, chromosome congression, aneuploidy, DNA damage response, blastocyst, zygote, apoptosis
MeSH terms
Aneuploidy, Animals, Blastocyst, Cell Differentiation, Chromosome Aberrations, DNA Damage, Female, Oocytes, Gene Expression, Apoptosis, Mice, Knockout, Protein Transport, Embryonic Development, Cell Proliferation, Mice, Protein Phosphatase 2, Gene Knockdown Techniques

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