Evidence map›Paper›PMID 41824582›Full record

ArticleScience advances2026

Deubiquitinase USP8 regulates the spindle assembly checkpoint in oocytes.

Changyin Zhou 周长银, Xue Zhang 张雪, Genlu Xu 许根露, Hui Wang 王慧, Yuting Ran 冉宇婷, Ang Li 李昂, Qing-Yuan Sun 孙青原, Xiang-Hong Ou 欧湘红

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Article in Science advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Changyin Zhou 周长银Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510317, China.ORCID 0000-0002-6271-4231
Xue Zhang 张雪Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510317, China.ORCID 0000-0002-9015-0517
Genlu Xu 许根露Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510317, China.ORCID 0009-0006-9890-2206
Hui Wang 王慧Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510317, China.
Yuting Ran 冉宇婷Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510317, China.
Ang Li 李昂Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510317, China.
Qing-Yuan Sun 孙青原Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510317, China.ORCID 0000-0002-0148-2414
Xiang-Hong Ou 欧湘红Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou 510317, China.ORCID 0000-0001-9047-1612

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The spindle assembly checkpoint (SAC) is vital for preventing oocyte aneuploidy, a leading cause of female infertility, miscarriages, and trisomy syndromes. However, whether deubiquitination participates in SAC regulation remains unknown. Here, we reveal that the deubiquitinase USP8 acts as a SAC regulator to prevent aneuploid egg formation. Mechanistically, depletion of USP8 inactivates the SAC, accelerates meiotic progression, and causes abnormal spindle assembly and chromosome alignment, ultimately leading to aneuploidy. Intriguingly, we identify USP8 in oocytes as a previously unidentified interaction partner of BUB3, a key component of the SAC, and demonstrate that USP8 stabilizes BUB3 through its deubiquitinating activity. Moreover, exogenous BUB3 rescues the defects observed in USP8-depleted oocytes. Together, our findings not only clarify that deubiquitination participates in regulating the SAC in oocytes but also uncover a unique role for USP8 in controlling the SAC via its interaction with BUB3.

Indexed as

EndopeptidasesEndosomal Sorting Complexes Required for TransportM Phase Cell Cycle CheckpointsOocytesSpindle ApparatusUbiquitin ThiolesteraseAneuploidyAnimalsCell Cycle ProteinsFemaleHumansMeiosisMiceProtein BindingUbiquitinationCell Cycle ProteinsEndopeptidasesEndosomal Sorting Complexes Required for TransportUbiquitin ThiolesteraseUsp8 protein, mouse

Identifiers

PMID41824582
PMCPMC12985659

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.